diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/generators')
276 files changed, 15473 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/generators/arguments-with-arguments-fn.js b/js/src/tests/test262/language/statements/generators/arguments-with-arguments-fn.js new file mode 100644 index 0000000000..f97fdd5676 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/arguments-with-arguments-fn.js @@ -0,0 +1,33 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +es6id: 9.2.12 +description: > + Arguments object is created even when the body contains a lexically-scoped + binding named "arguments" +info: | + [...] + 19. Else if "arguments" is an element of parameterNames, then + a. Let argumentsObjectNeeded be false. + 20. Else if hasParameterExpressions is false, then + a. If "arguments" is an element of functionNames or if "arguments" is an + element of lexicalNames, then + i. Let argumentsObjectNeeded be false. + [...] +flags: [noStrict] +features: [generators] +---*/ + +var args; + +function* g(x = args = arguments) { + function arguments() {} +} + +g().next(); + +assert.sameValue(typeof args, 'object'); +assert.sameValue(args.length, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/arguments-with-arguments-lex.js b/js/src/tests/test262/language/statements/generators/arguments-with-arguments-lex.js new file mode 100644 index 0000000000..597774c590 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/arguments-with-arguments-lex.js @@ -0,0 +1,33 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +es6id: 9.2.12 +description: > + Arguments object is created even when the body contains a function named + "arguments" +info: | + [...] + 19. Else if "arguments" is an element of parameterNames, then + a. Let argumentsObjectNeeded be false. + 20. Else if hasParameterExpressions is false, then + a. If "arguments" is an element of functionNames or if "arguments" is an + element of lexicalNames, then + i. Let argumentsObjectNeeded be false. + [...] +flags: [noStrict] +features: [generators] +---*/ + +var args; + +function* g(x = args = arguments) { + let arguments; +} + +g().next(); + +assert.sameValue(typeof args, 'object'); +assert.sameValue(args.length, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/array-destructuring-param-strict-body.js b/js/src/tests/test262/language/statements/generators/array-destructuring-param-strict-body.js new file mode 100644 index 0000000000..7a1e019871 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/array-destructuring-param-strict-body.js @@ -0,0 +1,134 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/array-destructuring-param-strict-body.case +// - src/function-forms/syntax/gen-func-decl.template +/*--- +description: ArrayBindingPattern and Use Strict Directive are not allowed to coexist for the same function. (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [rest-parameters, generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 13.3.3.4 Static Semantics: IsSimpleParameterList + + BindingElement : BindingPattern + + 1. Return false. + + 14.1.2 Static Semantics: Early Errors + + FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody } + FunctionDeclaration : function ( FormalParameters ) { FunctionBody } + FunctionExpression : function BindingIdentifier ( FormalParameters ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.2.1 Static Semantics: Early Errors + + ArrowFunction : ArrowParameters => ConciseBody + + - It is a Syntax Error if ContainsUseStrict of ConciseBody is true and + IsSimpleParameterList of ArrowParameters is false. + + 14.3.1 Static Semantics: Early Errors + + MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of PropertySetParameterList is false. + + 14.4.1 Static Semantics: Early Errors + + GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + GeneratorDeclaration : function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + GeneratorExpression : function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + 14.5.1 Static Semantics: Early Errors + + AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + AsyncGeneratorDeclaration : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } + AsyncGeneratorDeclaration : async function * ( FormalParameters ) { AsyncGeneratorBody } + AsyncGeneratorExpression : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.7.1 Static Semantics: Early Errors + + AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + AsyncFunctionDeclaration : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionDeclaration : async function ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionExpression : async function ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionExpression : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.8.1 Static Semantics: Early Errors + + AsyncArrowFunction : CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody + + - It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is true and + IsSimpleParameterList of CoverCallExpressionAndAsyncArrowHead is false. + +---*/ +$DONOTEVALUATE(); + +function* f([element]) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/generators/browser.js b/js/src/tests/test262/language/statements/generators/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/browser.js diff --git a/js/src/tests/test262/language/statements/generators/cptn-decl.js b/js/src/tests/test262/language/statements/generators/cptn-decl.js new file mode 100644 index 0000000000..8b370933a9 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/cptn-decl.js @@ -0,0 +1,20 @@ +// Copyright (C) 2017 Apple Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-statement-semantics-runtime-semantics-evaluation +description: Generator declaration completion value is empty. +info: | + GeneratorDeclaration[Yield, Await, Default]: + + function * BindingIdentifier[?Yield, ?Await] ( FormalParameters[+Yield, ~Await] ) { GeneratorBody } + + HoistableDeclaration : GeneratorDeclaration + + 1. Return NormalCompletion(empty). +features: [generators] +---*/ + +assert.sameValue(eval('function* f() {}'), undefined); +assert.sameValue(eval('1; function* f() {}'), 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/declaration.js b/js/src/tests/test262/language/statements/generators/declaration.js new file mode 100644 index 0000000000..8dba06f36a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/declaration.js @@ -0,0 +1,20 @@ +// Copyright 2015 Cubane Canada, Inc. All rights reserved. +// See LICENSE for details. + +/*--- +info: | + Generator can be declared with GeneratorDeclaration syntax +es6id: 14.4 +author: Sam Mikes +description: can declare generator functions +features: [generators] +---*/ + +function *foo(a) { yield a+1; return; } + +var g = foo(3); + +assert.sameValue(g.next().value, 4); +assert.sameValue(g.next().done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/default-proto.js b/js/src/tests/test262/language/statements/generators/default-proto.js new file mode 100644 index 0000000000..c7171b80f3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/default-proto.js @@ -0,0 +1,36 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-generator-function-definitions-runtime-semantics-evaluatebody +es6id: 14.4.11 +description: Intrinsic default prototype of GeneratorFunctions +info: | + 1. Let G be ? OrdinaryCreateFromConstructor(functionObject, + "%GeneratorPrototype%", « [[GeneratorState]], [[GeneratorContext]] »). + [...] + + 9.1.13 OrdinaryCreateFromConstructor + + [...] + 2. Let proto be ? GetPrototypeFromConstructor(constructor, + intrinsicDefaultProto). + 3. Return ObjectCreate(proto, internalSlotsList). + + 9.1.14 GetPrototypeFromConstructor + + [...] + 3. Let proto be ? Get(constructor, "prototype"). + 4. If Type(proto) is not Object, then + a. Let realm be ? GetFunctionRealm(constructor). + b. Let proto be realm's intrinsic object named intrinsicDefaultProto. + [...] +features: [generators] +---*/ + +function* g() {} +var GeneratorPrototype = Object.getPrototypeOf(g).prototype; +g.prototype = null; + +assert.sameValue(Object.getPrototypeOf(g()), GeneratorPrototype); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-abrupt.js b/js/src/tests/test262/language/statements/generators/dflt-params-abrupt.js new file mode 100644 index 0000000000..0a34923d1a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-abrupt.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-abrupt.case +// - src/function-forms/error/gen-func-decl.template +/*--- +description: Abrupt completion returned by evaluation of initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. + +---*/ + +var callCount = 0; +function* f(_ = (function() { throw new Test262Error(); }())) { + + callCount = callCount + 1; +} + +assert.throws(Test262Error, function() { + f(); +}); + +assert.sameValue(callCount, 0, 'generator function body not evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-arg-val-not-undefined.js b/js/src/tests/test262/language/statements/generators/dflt-params-arg-val-not-undefined.js new file mode 100644 index 0000000000..d9b8460c22 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-arg-val-not-undefined.js @@ -0,0 +1,87 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-arg-val-not-undefined.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: Use of initializer when argument value is not `undefined` (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + [...] + 23. Let iteratorRecord be Record {[[Iterator]]: + CreateListIterator(argumentsList), [[Done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + a. Perform ? IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + +---*/ +var obj = {}; +var falseCount = 0; +var stringCount = 0; +var nanCount = 0; +var zeroCount = 0; +var nullCount = 0; +var objCount = 0; + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) { + assert.sameValue(aFalse, false); + assert.sameValue(aString, ''); + assert.sameValue(aNaN, NaN); + assert.sameValue(a0, 0); + assert.sameValue(aNull, null); + assert.sameValue(aObj, obj); + callCount = callCount + 1; +} + +ref(false, '', NaN, 0, null, obj).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +assert.sameValue(falseCount, 0, 'initializer not evaluated: false'); +assert.sameValue(stringCount, 0, 'initializer not evaluated: string'); +assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN'); +assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0'); +assert.sameValue(nullCount, 0, 'initializer not evaluated: null'); +assert.sameValue(objCount, 0, 'initializer not evaluated: object'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-arg-val-undefined.js b/js/src/tests/test262/language/statements/generators/dflt-params-arg-val-undefined.js new file mode 100644 index 0000000000..37b2956bcb --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-arg-val-undefined.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-arg-val-undefined.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: Use of initializer when argument value is `undefined` (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + [...] + 23. Let iteratorRecord be Record {[[Iterator]]: + CreateListIterator(argumentsList), [[Done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + a. Perform ? IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + +---*/ + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(fromLiteral = 23, fromExpr = 45, fromHole = 99) { + assert.sameValue(fromLiteral, 23); + assert.sameValue(fromExpr, 45); + assert.sameValue(fromHole, 99); + callCount = callCount + 1; +} + +ref(undefined, void 0).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-duplicates.js b/js/src/tests/test262/language/statements/generators/dflt-params-duplicates.js new file mode 100644 index 0000000000..acff003ee0 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-duplicates.js @@ -0,0 +1,63 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-duplicates.case +// - src/function-forms/syntax/gen-func-decl.template +/*--- +description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.2 Static Semantics: Early Errors + + StrictFormalParameters : FormalParameters + + - It is a Syntax Error if BoundNames of FormalParameters contains any + duplicate elements. + + FormalParameters : FormalParameterList + + - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is + false and BoundNames of FormalParameterList contains any duplicate + elements. + +---*/ +$DONOTEVALUATE(); + +function* f(x = 0, x) { + +} diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-ref-later.js b/js/src/tests/test262/language/statements/generators/dflt-params-ref-later.js new file mode 100644 index 0000000000..d56330f90e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-ref-later.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-ref-later.case +// - src/function-forms/error/gen-func-decl.template +/*--- +description: Referencing a parameter that occurs later in the ParameterList (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. + +---*/ +var x = 0; + +var callCount = 0; +function* f(x = y, y) { + + callCount = callCount + 1; +} + +assert.throws(ReferenceError, function() { + f(); +}); + +assert.sameValue(callCount, 0, 'generator function body not evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-ref-prior.js b/js/src/tests/test262/language/statements/generators/dflt-params-ref-prior.js new file mode 100644 index 0000000000..5b4d4bbf20 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-ref-prior.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-ref-prior.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: Referencing a parameter that occurs earlier in the ParameterList (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. + +---*/ +var x = 0; + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(x, y = x, z = y) { + assert.sameValue(x, 3, 'first argument value'); + assert.sameValue(y, 3, 'second argument value'); + assert.sameValue(z, 3, 'third argument value'); + callCount = callCount + 1; +} + +ref(3).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-ref-self.js b/js/src/tests/test262/language/statements/generators/dflt-params-ref-self.js new file mode 100644 index 0000000000..12e88a8c8c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-ref-self.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-ref-self.case +// - src/function-forms/error/gen-func-decl.template +/*--- +description: Referencing a parameter from within its own initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. + +---*/ +var x = 0; + +var callCount = 0; +function* f(x = x) { + + callCount = callCount + 1; +} + +assert.throws(ReferenceError, function() { + f(); +}); + +assert.sameValue(callCount, 0, 'generator function body not evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-rest.js b/js/src/tests/test262/language/statements/generators/dflt-params-rest.js new file mode 100644 index 0000000000..37b1ba1935 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-rest.js @@ -0,0 +1,67 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-rest.case +// - src/function-forms/syntax/gen-func-decl.template +/*--- +description: RestParameter does not support an initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1 Function Definitions + + Syntax + + FunctionRestParameter[Yield] : + + BindingRestElement[?Yield] + + 13.3.3 Destructuring Binding Patterns + + Syntax + + BindingRestElement[Yield] : + + ...BindingIdentifier[?Yield] + ...BindingPattern[?Yield] + +---*/ +$DONOTEVALUATE(); + +function* f(...x = []) { + +} diff --git a/js/src/tests/test262/language/statements/generators/dflt-params-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dflt-params-trailing-comma.js new file mode 100644 index 0000000000..9e41293ecc --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dflt-params-trailing-comma.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-trailing-comma.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using default parameters (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , +---*/ + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(a, b = 39,) { + assert.sameValue(a, 42); + assert.sameValue(b, 39); + callCount = callCount + 1; +} + +ref(42, undefined, 1).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +assert.sameValue(ref.length, 1, 'length is properly set'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-close.js b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-close.js new file mode 100644 index 0000000000..070211dc51 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-close.js @@ -0,0 +1,72 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-close.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Iterator is closed when not exhausted by pattern evaluation (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + [...] + 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator, + result). + [...] + +---*/ +var doneCallCount = 0; +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + return { value: null, done: false }; + }, + return: function() { + doneCallCount += 1; + return {}; + } + }; +}; + +var callCount = 0; +function* f([x]) { + assert.sameValue(doneCallCount, 1); + callCount = callCount + 1; +}; +f(iter).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-get-err-array-prototype.js b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-get-err-array-prototype.js new file mode 100644 index 0000000000..061aacfcac --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-get-err-array-prototype.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-get-err-array-prototype.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Abrupt completion returned by GetIterator (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + 1. Let iteratorRecord be ? GetIterator(value). + + GetIterator ( obj [ , hint [ , method ] ] ) + + [...] + 4. Let iterator be ? Call(method, obj). + + Call ( F, V [ , argumentsList ] ) + + [...] + 2. If IsCallable(F) is false, throw a TypeError exception. + +---*/ +delete Array.prototype[Symbol.iterator]; + +function* f([x, y, z]) {} + +assert.throws(TypeError, function() { + f([1, 2, 3]); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-get-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-get-err.js new file mode 100644 index 0000000000..cefbe3af8e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-get-err.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-get-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Abrupt completion returned by GetIterator (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + 1. Let iterator be GetIterator(value). + 2. ReturnIfAbrupt(iterator). + +---*/ +var iter = {}; +iter[Symbol.iterator] = function() { + throw new Test262Error(); +}; + +function* f([x]) {} + +assert.throws(Test262Error, function() { + f(iter); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-no-close.js b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-no-close.js new file mode 100644 index 0000000000..8ec447cf4f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-init-iter-no-close.js @@ -0,0 +1,72 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-no-close.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Iterator is not closed when exhausted by pattern evaluation (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + [...] + 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator, + result). + [...] + +---*/ +var doneCallCount = 0; +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + return { value: null, done: true }; + }, + return: function() { + doneCallCount += 1; + return {}; + } + }; +}; + +var callCount = 0; +function* f([x]) { + assert.sameValue(doneCallCount, 0); + callCount = callCount + 1; +}; +f(iter).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-name-iter-val.js b/js/src/tests/test262/language/statements/generators/dstr/ary-name-iter-val.js new file mode 100644 index 0000000000..ee87f9a426 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-name-iter-val.js @@ -0,0 +1,71 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-name-iter-val.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding with normal value iteration (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x, y, z]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 3); + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elem-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elem-init.js new file mode 100644 index 0000000000..edc36af3c6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elem-init.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([[x, y, z] = [4, 5, 6]]) { + assert.sameValue(x, 4); + assert.sameValue(y, 5); + assert.sameValue(z, 6); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elem-iter.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elem-iter.js new file mode 100644 index 0000000000..2c41271fba --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elem-iter.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([[x, y, z] = [4, 5, 6]]) { + assert.sameValue(x, 7); + assert.sameValue(y, 8); + assert.sameValue(z, 9); + callCount = callCount + 1; +}; +f([[7, 8, 9]]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elision-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elision-init.js new file mode 100644 index 0000000000..7e3c622dcd --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elision-init.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +function* f([[,] = g()]) { + assert.sameValue(first, 1); + assert.sameValue(second, 0); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elision-iter.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elision-iter.js new file mode 100644 index 0000000000..d028c485f3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-elision-iter.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var callCount = 0; +function* g() { + callCount += 1; +}; + +var callCount = 0; +function* f([[,] = g()]) { + assert.sameValue(callCount, 0); + callCount = callCount + 1; +}; +f([[]]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-empty-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-empty-init.js new file mode 100644 index 0000000000..5eb48c1c86 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-empty-init.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var initCount = 0; +var iterCount = 0; +var iter = function*() { iterCount += 1; }(); + +var callCount = 0; +function* f([[] = function() { initCount += 1; return iter; }()]) { + assert.sameValue(initCount, 1); + assert.sameValue(iterCount, 0); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-empty-iter.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-empty-iter.js new file mode 100644 index 0000000000..8ffc811272 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-empty-iter.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var initCount = 0; + +var callCount = 0; +function* f([[] = function() { initCount += 1; }()]) { + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f([[23]]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js new file mode 100644 index 0000000000..a8275eeadc --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var values = [2, 1, 3]; + +var callCount = 0; +function* f([[...x] = values]) { + assert(Array.isArray(x)); + assert.sameValue(x[0], 2); + assert.sameValue(x[1], 1); + assert.sameValue(x[2], 3); + assert.sameValue(x.length, 3); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-iter.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-iter.js new file mode 100644 index 0000000000..d0ec9ba538 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-iter.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var values = [2, 1, 3]; +var initCount = 0; + +var callCount = 0; +function* f([[...x] = function() { initCount += 1; }()]) { + assert(Array.isArray(x)); + assert.sameValue(x[0], 2); + assert.sameValue(x[1], 1); + assert.sameValue(x[2], 3); + assert.sameValue(x.length, 3); + assert.notSameValue(x, values); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f([values]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-val-null.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-val-null.js new file mode 100644 index 0000000000..488a9633da --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-val-null.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Nested array destructuring with a null value (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. If iteratorRecord.[[done]] is false, then + [...] + e. Else + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + 1. Let iterator be GetIterator(value). + 2. ReturnIfAbrupt(iterator). +---*/ + +function* f([[x]]) {} + +assert.throws(TypeError, function() { + f([null]); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-exhausted.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-exhausted.js new file mode 100644 index 0000000000..a6df78cd24 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-exhausted.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Destructuring initializer with an exhausted iterator (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 5. If iteratorRecord.[[done]] is true, let v be undefined. + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x = 23]) { + assert.sameValue(x, 23); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-arrow.js new file mode 100644 index 0000000000..367c71d59a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-arrow.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding does assign name to arrow functions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([arrow = () => {}]) { + assert.sameValue(arrow.name, 'arrow'); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-class.js new file mode 100644 index 0000000000..6da7e8c78f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-class.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) { + assert.sameValue(cls.name, 'cls'); + assert.notSameValue(xCls.name, 'xCls'); + assert.notSameValue(xCls2.name, 'xCls2'); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-cover.js new file mode 100644 index 0000000000..ed57c66ba5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-cover.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([cover = (function () {}), xCover = (0, function() {})]) { + assert.sameValue(cover.name, 'cover'); + assert.notSameValue(xCover.name, 'xCover'); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-fn.js new file mode 100644 index 0000000000..b736b59dec --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-fn.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([fn = function () {}, xFn = function x() {}]) { + assert.sameValue(fn.name, 'fn'); + assert.notSameValue(xFn.name, 'xFn'); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-gen.js new file mode 100644 index 0000000000..cba8655724 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-fn-name-gen.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). + +---*/ + +var callCount = 0; +function* f([gen = function* () {}, xGen = function* x() {}]) { + assert.sameValue(gen.name, 'gen'); + assert.notSameValue(xGen.name, 'xGen'); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-hole.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-hole.js new file mode 100644 index 0000000000..1983b26ced --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-hole.js @@ -0,0 +1,58 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Destructuring initializer with a "hole" (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + SingleNameBinding : BindingIdentifier Initializeropt + [...] 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + [...] + 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x = 23]) { + assert.sameValue(x, 23); + // another statement + callCount = callCount + 1; +}; +f([,]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-skipped.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-skipped.js new file mode 100644 index 0000000000..66604d9783 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-skipped.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var callCount = 0; +function* f([w = counter(), x = counter(), y = counter(), z = counter()]) { + assert.sameValue(w, null); + assert.sameValue(x, 0); + assert.sameValue(y, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f([null, 0, false, '']).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-throws.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-throws.js new file mode 100644 index 0000000000..c818b5049e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-throws.js @@ -0,0 +1,57 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Destructuring initializer returns an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). +---*/ + +function* f([x = (function() { throw new Test262Error(); })()]) {} + +assert.throws(Test262Error, function() { + f([undefined]); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-undef.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-undef.js new file mode 100644 index 0000000000..78a9c350a5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-undef.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Destructuring initializer with an undefined value (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x = 23]) { + assert.sameValue(x, 23); + callCount = callCount + 1; +}; +f([undefined]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-unresolvable.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-unresolvable.js new file mode 100644 index 0000000000..dde818edf6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-init-unresolvable.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Destructuring initializer is an unresolvable reference (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + + 6.2.3.1 GetValue (V) + + 1. ReturnIfAbrupt(V). + 2. If Type(V) is not Reference, return V. + 3. Let base be GetBase(V). + 4. If IsUnresolvableReference(V), throw a ReferenceError exception. +---*/ + +function* f([ x = unresolvableReference ]) {} + +assert.throws(ReferenceError, function() { + f([]); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-complete.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-complete.js new file mode 100644 index 0000000000..523dd78256 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-complete.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding when value iteration completes (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x]) { + assert.sameValue(x, undefined); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-done.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-done.js new file mode 100644 index 0000000000..67d5bc220b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-done.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding when value iteration was completed previously (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + [...] + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([_, x]) { + assert.sameValue(x, undefined); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-step-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-step-err.js new file mode 100644 index 0000000000..e88649739f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-step-err.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + +---*/ +var g = {}; +g[Symbol.iterator] = function() { + return { + next: function() { + throw new Test262Error(); + } + }; +}; + +function* f([x]) {} + +assert.throws(Test262Error, function() { + f(g); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val-array-prototype.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val-array-prototype.js new file mode 100644 index 0000000000..a085d0eab8 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val-array-prototype.js @@ -0,0 +1,81 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val-array-prototype.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializer_opt + + 1. Let bindingId be StringValue of BindingIdentifier. + 2. Let lhs be ? ResolveBinding(bindingId, environment). + 3. If iteratorRecord.[[Done]] is false, then + a. Let next be IteratorStep(iteratorRecord). + b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[Done]] to true. + e. Else, + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true. + iii. ReturnIfAbrupt(v). + [...] + 7. Return InitializeReferencedBinding(lhs, v). + +---*/ +Array.prototype[Symbol.iterator] = function* () { + if (this.length > 0) { + yield this[0]; + } + if (this.length > 1) { + yield this[1]; + } + if (this.length > 2) { + yield 42; + } +}; + +var callCount = 0; +function* f([x, y, z]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 42); + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val-err.js new file mode 100644 index 0000000000..2ef06dabcd --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val-err.js @@ -0,0 +1,77 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set iteratorRecord.[[done]] to + true. + iii. ReturnIfAbrupt(v). + +---*/ +var poisonedValue = Object.defineProperty({}, 'value', { + get: function() { + throw new Test262Error(); + } +}); +var g = {}; +g[Symbol.iterator] = function() { + return { + next: function() { + return poisonedValue; + } + }; +}; + +function* f([x]) {} + +assert.throws(Test262Error, function() { + f(g); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val.js new file mode 100644 index 0000000000..1a1c0f958b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-id-iter-val.js @@ -0,0 +1,71 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding when value iteration was completed previously (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x, y, z]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 3); + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-id-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-id-init.js new file mode 100644 index 0000000000..46b616eb41 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-id-init.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with object binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }]) { + assert.sameValue(x, 44); + assert.sameValue(y, 55); + assert.sameValue(z, 66); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-id.js new file mode 100644 index 0000000000..16b57f3c88 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-id.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with object binding pattern and initializer is not used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }]) { + assert.sameValue(x, 11); + assert.sameValue(y, 22); + assert.sameValue(z, 33); + callCount = callCount + 1; +}; +f([{ x: 11, y: 22, z: 33 }]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-prop-id-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-prop-id-init.js new file mode 100644 index 0000000000..3f0e79c08b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-prop-id-init.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with object binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) { + assert.sameValue(v, 444); + assert.sameValue(x, 555); + assert.sameValue(z, 666); + + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-prop-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-prop-id.js new file mode 100644 index 0000000000..40aceb907c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-prop-id.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with object binding pattern and initializer is not used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) { + assert.sameValue(v, 777); + assert.sameValue(x, 888); + assert.sameValue(z, 999); + + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + callCount = callCount + 1; +}; +f([{ u: 777, w: 888, y: 999 }]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-val-null.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-val-null.js new file mode 100644 index 0000000000..01eac68ef1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-val-null.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Nested object destructuring with a null value (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. If iteratorRecord.[[done]] is false, then + [...] + e. Else + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ObjectBindingPattern + + 1. Let valid be RequireObjectCoercible(value). + 2. ReturnIfAbrupt(valid). +---*/ + +function* f([{ x }]) {} + +assert.throws(TypeError, function() { + f([null]); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-val-undef.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-val-undef.js new file mode 100644 index 0000000000..2ff371b420 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-obj-val-undef.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Nested object destructuring with a value of `undefined` (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. If iteratorRecord.[[done]] is false, then + [...] + e. Else + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ObjectBindingPattern + + 1. Let valid be RequireObjectCoercible(value). + 2. ReturnIfAbrupt(valid). +---*/ + +function* f([{ x }]) {} + +assert.throws(TypeError, function() { + f([]); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision-exhausted.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision-exhausted.js new file mode 100644 index 0000000000..cb1baf966c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision-exhausted.js @@ -0,0 +1,68 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elision-exhausted.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Elision accepts exhausted iterator (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + [...] + 2. Return NormalCompletion(empty). + +---*/ +var iter = function*() {}(); +iter.next(); + +var callCount = 0; +function* f([,]) { + + callCount = callCount + 1; +}; +f(iter).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision-step-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision-step-err.js new file mode 100644 index 0000000000..46233e56b9 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision-step-err.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elision-step-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Elision advances iterator and forwards abrupt completions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + +---*/ +var following = 0; +var iter =function* () { + throw new Test262Error(); + following += 1; +}(); + +function* f([,]) {} + +assert.throws(Test262Error, function() { + f(iter); +}); + +iter.next(); +assert.sameValue(following, 0, 'Iterator was properly closed.'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision.js new file mode 100644 index 0000000000..904635c9ae --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elision.js @@ -0,0 +1,77 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elision.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Elision advances iterator (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + 2. Return NormalCompletion(empty). + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +function* f([,]) { + assert.sameValue(first, 1); + assert.sameValue(second, 0); + callCount = callCount + 1; +}; +f(g()).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-empty.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-empty.js new file mode 100644 index 0000000000..f1e9a584c6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-empty.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-empty.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: No iteration occurs for an "empty" array binding pattern (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ ] + + 1. Return NormalCompletion(empty). + +---*/ +var iterations = 0; +var iter = function*() { + iterations += 1; +}(); + +var callCount = 0; +function* f([]) { + assert.sameValue(iterations, 0); + callCount = callCount + 1; +}; +f(iter).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-elem.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-elem.js new file mode 100644 index 0000000000..d089e10e00 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-elem.js @@ -0,0 +1,84 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-elem.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element containing an array BindingElementList pattern (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([...[x, y, z]]) { + assert.sameValue(x, 3); + assert.sameValue(y, 4); + assert.sameValue(z, 5); + callCount = callCount + 1; +}; +f([3, 4, 5]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-elision.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-elision.js new file mode 100644 index 0000000000..bd98fc0d59 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-elision.js @@ -0,0 +1,90 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-elision.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element containing an elision (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + 2. Return NormalCompletion(empty). + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +function* f([...[,]]) { + assert.sameValue(first, 1); + assert.sameValue(second, 1); + callCount = callCount + 1; +}; +f(g()).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-empty.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-empty.js new file mode 100644 index 0000000000..0624a5ecd3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-empty.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-empty.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element containing an "empty" array pattern (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ ] + + 1. Return NormalCompletion(empty). + +---*/ +var iterations = 0; +var iter = function*() { + iterations += 1; +}(); + +var callCount = 0; +function* f([...[]]) { + assert.sameValue(iterations, 1); + callCount = callCount + 1; +}; +f(iter).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-rest.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-rest.js new file mode 100644 index 0000000000..e70f0f4810 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-ary-rest.js @@ -0,0 +1,69 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-rest.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element containing a rest element (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] +---*/ +var values = [1, 2, 3]; + +var callCount = 0; +function* f([...[...x]]) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 3); + assert.sameValue(x[0], 1); + assert.sameValue(x[1], 2); + assert.sameValue(x[2], 3); + assert.notSameValue(x, values); + + callCount = callCount + 1; +}; +f(values).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-direct.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-direct.js new file mode 100644 index 0000000000..a757ac9395 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-direct.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-direct.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Lone rest element (direct binding) (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +includes: [compareArray.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingIdentifier + + [...] + 2. Let A be ! ArrayCreate(0). + 3. Let n be 0. + 4. Repeat, + [...] + f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue). + g. Set n to n + 1. + +---*/ + +var callCount = 0; +function* f([...x]) { + assert(Array.isArray(x)); + assert.compareArray(x, [1]); + callCount = callCount + 1; +}; +f([1]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-elision-next-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-elision-next-err.js new file mode 100644 index 0000000000..b651e1d9ad --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-elision-next-err.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Rest element following elision elements (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + ArrayBindingPattern : [ Elisionopt BindingRestElement ] + 1. If Elision is present, then + a. Let status be the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with + iteratorRecord as the argument. + b. ReturnIfAbrupt(status). + 2. Return the result of performing IteratorBindingInitialization for + BindingRestElement with iteratorRecord and environment as arguments. + +---*/ +var iter = (function*() { throw new Test262Error(); })(); + +function* f([, ...x]) {} + +assert.throws(Test262Error, function() { + f(iter); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-elision.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-elision.js new file mode 100644 index 0000000000..02b4a277dc --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-elision.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-elision.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element following elision elements (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + ArrayBindingPattern : [ Elisionopt BindingRestElement ] + 1. If Elision is present, then + a. Let status be the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with + iteratorRecord as the argument. + b. ReturnIfAbrupt(status). + 2. Return the result of performing IteratorBindingInitialization for + BindingRestElement with iteratorRecord and environment as arguments. +---*/ +var values = [1, 2, 3, 4, 5]; + +var callCount = 0; +function* f([ , , ...x]) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 3); + assert.sameValue(x[0], 3); + assert.sameValue(x[1], 4); + assert.sameValue(x[2], 5); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f(values).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-exhausted.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-exhausted.js new file mode 100644 index 0000000000..51bcf5564f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-exhausted.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: RestElement applied to an exhausted iterator (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + [...] + b. If iteratorRecord.[[done]] is true, then + i. If environment is undefined, return PutValue(lhs, A). + ii. Return InitializeReferencedBinding(lhs, A). + +---*/ + +var callCount = 0; +function* f([, , ...x]) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 0); + callCount = callCount + 1; +}; +f([1, 2]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-iter-step-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-iter-step-err.js new file mode 100644 index 0000000000..0e7649b5bb --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-iter-step-err.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + a. If iteratorRecord.[[done]] is false, + i. Let next be IteratorStep(iteratorRecord.[[iterator]]). + ii. If next is an abrupt completion, set iteratorRecord.[[done]] to + true. + iii. ReturnIfAbrupt(next). + +---*/ +var first = 0; +var second = 0; +var iter = function*() { + first += 1; + throw new Test262Error(); + second += 1; +}(); + +function* f([...x]) {} + +assert.throws(Test262Error, function() { + f(iter); +}); + +iter.next(); +assert.sameValue(first, 1); +assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-iter-val-err.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-iter-val-err.js new file mode 100644 index 0000000000..c9a30f0761 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id-iter-val-err.js @@ -0,0 +1,72 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + [...] + c. Let nextValue be IteratorValue(next). + d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to + true. + e. ReturnIfAbrupt(nextValue). + +---*/ +var poisonedValue = Object.defineProperty({}, 'value', { + get: function() { + throw new Test262Error(); + } +}); +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + return poisonedValue; + } + }; +}; + +function* f([...x]) {} + +assert.throws(Test262Error, function() { + f(iter); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id.js new file mode 100644 index 0000000000..52cf032774 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-id.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Lone rest element (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat + [...] + f. Let status be CreateDataProperty(A, ToString (n), nextValue). + [...] +---*/ +var values = [1, 2, 3]; + +var callCount = 0; +function* f([...x]) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 3); + assert.sameValue(x[0], 1); + assert.sameValue(x[1], 2); + assert.sameValue(x[2], 3); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f(values).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-ary.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-ary.js new file mode 100644 index 0000000000..709ad6689f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-ary.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-init-ary.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element (nested array pattern) does not support initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...[ x ] = []]) { + + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-id.js new file mode 100644 index 0000000000..1c24f4886d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-id.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-init-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element (identifier) does not support initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...x = []]) { + + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-obj.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-obj.js new file mode 100644 index 0000000000..f707db33de --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-init-obj.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-init-obj.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element (nested object pattern) does not support initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...{ x } = []]) { + + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-ary.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-ary.js new file mode 100644 index 0000000000..0be6d7726a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-ary.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element (array binding pattern) may not be followed by any element (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...[x], y]) { + + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-id.js new file mode 100644 index 0000000000..1d928d1e08 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-id.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-not-final-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element (identifier) may not be followed by any element (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...x, y]) { + + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-obj.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-obj.js new file mode 100644 index 0000000000..cb834ac504 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-not-final-obj.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element (object binding pattern) may not be followed by any element (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...{ x }, y]) { + + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-obj-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-obj-id.js new file mode 100644 index 0000000000..f9888f1e95 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-obj-id.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-obj-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element containing an object binding pattern (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] +---*/ + +var callCount = 0; +function* f([...{ length }]) { + assert.sameValue(length, 3); + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-obj-prop-id.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-obj-prop-id.js new file mode 100644 index 0000000000..f453270fe3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-rest-obj-prop-id.js @@ -0,0 +1,69 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest element containing an object binding pattern (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] +---*/ +let length = "outer"; + +var callCount = 0; +function* f([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) { + assert.sameValue(v, 7); + assert.sameValue(w, 8); + assert.sameValue(x, 9); + assert.sameValue(y, undefined); + assert.sameValue(z, 3); + + assert.sameValue(length, "outer", "the length prop is not set as a binding name"); + callCount = callCount + 1; +}; +f([7, 8, 9]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/browser.js b/js/src/tests/test262/language/statements/generators/dstr/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/browser.js diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-close.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-close.js new file mode 100644 index 0000000000..7fd04976ef --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-close.js @@ -0,0 +1,72 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-close.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Iterator is closed when not exhausted by pattern evaluation (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + [...] + 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator, + result). + [...] + +---*/ +var doneCallCount = 0; +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + return { value: null, done: false }; + }, + return: function() { + doneCallCount += 1; + return {}; + } + }; +}; + +var callCount = 0; +function* f([x] = iter) { + assert.sameValue(doneCallCount, 1); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-get-err-array-prototype.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-get-err-array-prototype.js new file mode 100644 index 0000000000..0a3c267e4c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-get-err-array-prototype.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-get-err-array-prototype.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Abrupt completion returned by GetIterator (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + 1. Let iteratorRecord be ? GetIterator(value). + + GetIterator ( obj [ , hint [ , method ] ] ) + + [...] + 4. Let iterator be ? Call(method, obj). + + Call ( F, V [ , argumentsList ] ) + + [...] + 2. If IsCallable(F) is false, throw a TypeError exception. + +---*/ +delete Array.prototype[Symbol.iterator]; + +function* f([x, y, z] = [1, 2, 3]) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-get-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-get-err.js new file mode 100644 index 0000000000..89b6b056d7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-get-err.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-get-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Abrupt completion returned by GetIterator (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + 1. Let iterator be GetIterator(value). + 2. ReturnIfAbrupt(iterator). + +---*/ +var iter = {}; +iter[Symbol.iterator] = function() { + throw new Test262Error(); +}; + +function* f([x] = iter) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-no-close.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-no-close.js new file mode 100644 index 0000000000..d0070d79d1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-init-iter-no-close.js @@ -0,0 +1,72 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-init-iter-no-close.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Iterator is not closed when exhausted by pattern evaluation (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + [...] + 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator, + result). + [...] + +---*/ +var doneCallCount = 0; +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + return { value: null, done: true }; + }, + return: function() { + doneCallCount += 1; + return {}; + } + }; +}; + +var callCount = 0; +function* f([x] = iter) { + assert.sameValue(doneCallCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-name-iter-val.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-name-iter-val.js new file mode 100644 index 0000000000..93a00016ef --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-name-iter-val.js @@ -0,0 +1,71 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-name-iter-val.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding with normal value iteration (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x, y, z] = [1, 2, 3]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 3); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elem-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elem-init.js new file mode 100644 index 0000000000..7cb24f5326 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elem-init.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([[x, y, z] = [4, 5, 6]] = []) { + assert.sameValue(x, 4); + assert.sameValue(y, 5); + assert.sameValue(z, 6); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elem-iter.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elem-iter.js new file mode 100644 index 0000000000..b916777786 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elem-iter.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) { + assert.sameValue(x, 7); + assert.sameValue(y, 8); + assert.sameValue(z, 9); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elision-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elision-init.js new file mode 100644 index 0000000000..1e8aa34711 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elision-init.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +function* f([[,] = g()] = []) { + assert.sameValue(first, 1); + assert.sameValue(second, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js new file mode 100644 index 0000000000..ef9dee96b2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var callCount = 0; +function* g() { + callCount += 1; +}; + +var callCount = 0; +function* f([[,] = g()] = [[]]) { + assert.sameValue(callCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-empty-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-empty-init.js new file mode 100644 index 0000000000..96a8e0a8b1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-empty-init.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var initCount = 0; +var iterCount = 0; +var iter = function*() { iterCount += 1; }(); + +var callCount = 0; +function* f([[] = function() { initCount += 1; return iter; }()] = []) { + assert.sameValue(initCount, 1); + assert.sameValue(iterCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-empty-iter.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-empty-iter.js new file mode 100644 index 0000000000..975e2645fb --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-empty-iter.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var initCount = 0; + +var callCount = 0; +function* f([[] = function() { initCount += 1; }()] = [[23]]) { + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-rest-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-rest-init.js new file mode 100644 index 0000000000..0a591a0395 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-rest-init.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var values = [2, 1, 3]; + +var callCount = 0; +function* f([[...x] = values] = []) { + assert(Array.isArray(x)); + assert.sameValue(x[0], 2); + assert.sameValue(x[1], 1); + assert.sameValue(x[2], 3); + assert.sameValue(x.length, 3); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-rest-iter.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-rest-iter.js new file mode 100644 index 0000000000..c41f1fbc20 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-rest-iter.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var values = [2, 1, 3]; +var initCount = 0; + +var callCount = 0; +function* f([[...x] = function() { initCount += 1; }()] = [values]) { + assert(Array.isArray(x)); + assert.sameValue(x[0], 2); + assert.sameValue(x[1], 1); + assert.sameValue(x[2], 3); + assert.sameValue(x.length, 3); + assert.notSameValue(x, values); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-val-null.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-val-null.js new file mode 100644 index 0000000000..702da478cf --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-ary-val-null.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-val-null.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Nested array destructuring with a null value (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. If iteratorRecord.[[done]] is false, then + [...] + e. Else + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ArrayBindingPattern + + 1. Let iterator be GetIterator(value). + 2. ReturnIfAbrupt(iterator). +---*/ + +function* f([[x]] = [null]) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-exhausted.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-exhausted.js new file mode 100644 index 0000000000..5fd55e6a1f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-exhausted.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer with an exhausted iterator (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 5. If iteratorRecord.[[done]] is true, let v be undefined. + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x = 23] = []) { + assert.sameValue(x, 23); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-arrow.js new file mode 100644 index 0000000000..426c3bf087 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-arrow.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding does assign name to arrow functions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([arrow = () => {}] = []) { + assert.sameValue(arrow.name, 'arrow'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-class.js new file mode 100644 index 0000000000..3dd2091151 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-class.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) { + assert.sameValue(cls.name, 'cls'); + assert.notSameValue(xCls.name, 'xCls'); + assert.notSameValue(xCls2.name, 'xCls2'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-cover.js new file mode 100644 index 0000000000..08d78391d2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-cover.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([cover = (function () {}), xCover = (0, function() {})] = []) { + assert.sameValue(cover.name, 'cover'); + assert.notSameValue(xCover.name, 'xCover'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js new file mode 100644 index 0000000000..5f6ca23110 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-fn.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([fn = function () {}, xFn = function x() {}] = []) { + assert.sameValue(fn.name, 'fn'); + assert.notSameValue(xFn.name, 'xFn'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js new file mode 100644 index 0000000000..4de7da79c3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-fn-name-gen.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). + +---*/ + +var callCount = 0; +function* f([gen = function* () {}, xGen = function* x() {}] = []) { + assert.sameValue(gen.name, 'gen'); + assert.notSameValue(xGen.name, 'xGen'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-hole.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-hole.js new file mode 100644 index 0000000000..cdf756a868 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-hole.js @@ -0,0 +1,58 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer with a "hole" (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + SingleNameBinding : BindingIdentifier Initializeropt + [...] 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + [...] + 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x = 23] = [,]) { + assert.sameValue(x, 23); + // another statement + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-skipped.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-skipped.js new file mode 100644 index 0000000000..2c03a17217 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-skipped.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var callCount = 0; +function* f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) { + assert.sameValue(w, null); + assert.sameValue(x, 0); + assert.sameValue(y, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-throws.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-throws.js new file mode 100644 index 0000000000..7caca2e0d6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-throws.js @@ -0,0 +1,57 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-throws.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer returns an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). +---*/ + +function* f([x = (function() { throw new Test262Error(); })()] = [undefined]) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-undef.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-undef.js new file mode 100644 index 0000000000..78041dad4a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-undef.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer with an undefined value (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + [...] + 7. If environment is undefined, return PutValue(lhs, v). + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x = 23] = [undefined]) { + assert.sameValue(x, 23); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-unresolvable.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-unresolvable.js new file mode 100644 index 0000000000..f8c8754b86 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-init-unresolvable.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + + 6.2.3.1 GetValue (V) + + 1. ReturnIfAbrupt(V). + 2. If Type(V) is not Reference, return V. + 3. Let base be GetBase(V). + 4. If IsUnresolvableReference(V), throw a ReferenceError exception. +---*/ + +function* f([ x = unresolvableReference ] = []) {} + +assert.throws(ReferenceError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-complete.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-complete.js new file mode 100644 index 0000000000..0cf4ada254 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-complete.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding when value iteration completes (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x] = []) { + assert.sameValue(x, undefined); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-done.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-done.js new file mode 100644 index 0000000000..11ee30daaf --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-done.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding when value iteration was completed previously (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + [...] + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([_, x] = []) { + assert.sameValue(x, undefined); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js new file mode 100644 index 0000000000..d14fda2324 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + +---*/ +var g = {}; +g[Symbol.iterator] = function() { + return { + next: function() { + throw new Test262Error(); + } + }; +}; + +function* f([x] = g) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val-array-prototype.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val-array-prototype.js new file mode 100644 index 0000000000..666519659e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val-array-prototype.js @@ -0,0 +1,81 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val-array-prototype.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Array destructuring uses overriden Array.prototype[Symbol.iterator] (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializer_opt + + 1. Let bindingId be StringValue of BindingIdentifier. + 2. Let lhs be ? ResolveBinding(bindingId, environment). + 3. If iteratorRecord.[[Done]] is false, then + a. Let next be IteratorStep(iteratorRecord). + b. If next is an abrupt completion, set iteratorRecord.[[Done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[Done]] to true. + e. Else, + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set iteratorRecord.[[Done]] to true. + iii. ReturnIfAbrupt(v). + [...] + 7. Return InitializeReferencedBinding(lhs, v). + +---*/ +Array.prototype[Symbol.iterator] = function* () { + if (this.length > 0) { + yield this[0]; + } + if (this.length > 1) { + yield this[1]; + } + if (this.length > 2) { + yield 42; + } +}; + +var callCount = 0; +function* f([x, y, z] = [1, 2, 3]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 42); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val-err.js new file mode 100644 index 0000000000..4c5f951de9 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val-err.js @@ -0,0 +1,77 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set iteratorRecord.[[done]] to + true. + iii. ReturnIfAbrupt(v). + +---*/ +var poisonedValue = Object.defineProperty({}, 'value', { + get: function() { + throw new Test262Error(); + } +}); +var g = {}; +g[Symbol.iterator] = function() { + return { + next: function() { + return poisonedValue; + } + }; +}; + +function* f([x] = g) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val.js new file mode 100644 index 0000000000..43cbbf7241 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-id-iter-val.js @@ -0,0 +1,71 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding when value iteration was completed previously (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x, y, z] = [1, 2, 3]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 3); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-id-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-id-init.js new file mode 100644 index 0000000000..73d5a7838d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-id-init.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with object binding pattern and initializer is used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) { + assert.sameValue(x, 44); + assert.sameValue(y, 55); + assert.sameValue(z, 66); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-id.js new file mode 100644 index 0000000000..caa450eb7f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-id.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with object binding pattern and initializer is not used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) { + assert.sameValue(x, 11); + assert.sameValue(y, 22); + assert.sameValue(z, 33); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-prop-id-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-prop-id-init.js new file mode 100644 index 0000000000..0ee3cd9141 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-prop-id-init.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with object binding pattern and initializer is used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = []) { + assert.sameValue(v, 444); + assert.sameValue(x, 555); + assert.sameValue(z, 666); + + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-prop-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-prop-id.js new file mode 100644 index 0000000000..ead6f84704 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-prop-id.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: BindingElement with object binding pattern and initializer is not used (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }] = [{ u: 777, w: 888, y: 999 }]) { + assert.sameValue(v, 777); + assert.sameValue(x, 888); + assert.sameValue(z, 999); + + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-val-null.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-val-null.js new file mode 100644 index 0000000000..509fdef404 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-val-null.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-val-null.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Nested object destructuring with a null value (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. If iteratorRecord.[[done]] is false, then + [...] + e. Else + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ObjectBindingPattern + + 1. Let valid be RequireObjectCoercible(value). + 2. ReturnIfAbrupt(valid). +---*/ + +function* f([{ x }] = [null]) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-val-undef.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-val-undef.js new file mode 100644 index 0000000000..a47a0accd6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elem-obj-val-undef.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-val-undef.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Nested object destructuring with a value of `undefined` (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. If iteratorRecord.[[done]] is false, then + [...] + e. Else + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPattern : ObjectBindingPattern + + 1. Let valid be RequireObjectCoercible(value). + 2. ReturnIfAbrupt(valid). +---*/ + +function* f([{ x }] = []) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision-exhausted.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision-exhausted.js new file mode 100644 index 0000000000..08b551c95e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision-exhausted.js @@ -0,0 +1,68 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elision-exhausted.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Elision accepts exhausted iterator (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + [...] + 2. Return NormalCompletion(empty). + +---*/ +var iter = function*() {}(); +iter.next(); + +var callCount = 0; +function* f([,] = iter) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision-step-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision-step-err.js new file mode 100644 index 0000000000..2094923aa1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision-step-err.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elision-step-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Elision advances iterator and forwards abrupt completions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + +---*/ +var following = 0; +var iter =function* () { + throw new Test262Error(); + following += 1; +}(); + +function* f([,] = iter) {} + +assert.throws(Test262Error, function() { + f(); +}); + +iter.next(); +assert.sameValue(following, 0, 'Iterator was properly closed.'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision.js new file mode 100644 index 0000000000..711b7ee8de --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-elision.js @@ -0,0 +1,77 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elision.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Elision advances iterator (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + 2. Return NormalCompletion(empty). + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +function* f([,] = g()) { + assert.sameValue(first, 1); + assert.sameValue(second, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-empty.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-empty.js new file mode 100644 index 0000000000..16520a1cb5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-empty.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-empty.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: No iteration occurs for an "empty" array binding pattern (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ ] + + 1. Return NormalCompletion(empty). + +---*/ +var iterations = 0; +var iter = function*() { + iterations += 1; +}(); + +var callCount = 0; +function* f([] = iter) { + assert.sameValue(iterations, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-elem.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-elem.js new file mode 100644 index 0000000000..687489bd84 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-elem.js @@ -0,0 +1,84 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-elem.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element containing an array BindingElementList pattern (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([...[x, y, z]] = [3, 4, 5]) { + assert.sameValue(x, 3); + assert.sameValue(y, 4); + assert.sameValue(z, 5); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-elision.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-elision.js new file mode 100644 index 0000000000..d8b153487f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-elision.js @@ -0,0 +1,90 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-elision.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element containing an elision (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ Elision ] + + 1. Return the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord + as the argument. + + 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation + + Elision : , + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + 2. Return NormalCompletion(empty). + +---*/ +var first = 0; +var second = 0; +function* g() { + first += 1; + yield; + second += 1; +}; + +var callCount = 0; +function* f([...[,]] = g()) { + assert.sameValue(first, 1); + assert.sameValue(second, 1); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-empty.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-empty.js new file mode 100644 index 0000000000..4b912f4678 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-empty.js @@ -0,0 +1,73 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-empty.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element containing an "empty" array pattern (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + ArrayBindingPattern : [ ] + + 1. Return NormalCompletion(empty). + +---*/ +var iterations = 0; +var iter = function*() { + iterations += 1; +}(); + +var callCount = 0; +function* f([...[]] = iter) { + assert.sameValue(iterations, 1); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-rest.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-rest.js new file mode 100644 index 0000000000..be6e892868 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-ary-rest.js @@ -0,0 +1,69 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-ary-rest.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element containing a rest element (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] +---*/ +var values = [1, 2, 3]; + +var callCount = 0; +function* f([...[...x]] = values) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 3); + assert.sameValue(x[0], 1); + assert.sameValue(x[1], 2); + assert.sameValue(x[2], 3); + assert.notSameValue(x, values); + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-direct.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-direct.js new file mode 100644 index 0000000000..9be676e308 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-direct.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-direct.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Lone rest element (direct binding) (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +includes: [compareArray.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingIdentifier + + [...] + 2. Let A be ! ArrayCreate(0). + 3. Let n be 0. + 4. Repeat, + [...] + f. Perform ! CreateDataPropertyOrThrow(A, ! ToString(n), nextValue). + g. Set n to n + 1. + +---*/ + +var callCount = 0; +function* f([...x] = [1]) { + assert(Array.isArray(x)); + assert.compareArray(x, [1]); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-elision-next-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-elision-next-err.js new file mode 100644 index 0000000000..ac4e2ccb3a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-elision-next-err.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-elision-next-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Rest element following elision elements (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + ArrayBindingPattern : [ Elisionopt BindingRestElement ] + 1. If Elision is present, then + a. Let status be the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with + iteratorRecord as the argument. + b. ReturnIfAbrupt(status). + 2. Return the result of performing IteratorBindingInitialization for + BindingRestElement with iteratorRecord and environment as arguments. + +---*/ +var iter = (function*() { throw new Test262Error(); })(); + +function* f([, ...x] = iter) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-elision.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-elision.js new file mode 100644 index 0000000000..ffd7a31d41 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-elision.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-elision.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element following elision elements (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + ArrayBindingPattern : [ Elisionopt BindingRestElement ] + 1. If Elision is present, then + a. Let status be the result of performing + IteratorDestructuringAssignmentEvaluation of Elision with + iteratorRecord as the argument. + b. ReturnIfAbrupt(status). + 2. Return the result of performing IteratorBindingInitialization for + BindingRestElement with iteratorRecord and environment as arguments. +---*/ +var values = [1, 2, 3, 4, 5]; + +var callCount = 0; +function* f([ , , ...x] = values) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 3); + assert.sameValue(x[0], 3); + assert.sameValue(x[1], 4); + assert.sameValue(x[2], 5); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-exhausted.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-exhausted.js new file mode 100644 index 0000000000..8daf7bb3cf --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-exhausted.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: RestElement applied to an exhausted iterator (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + [...] + b. If iteratorRecord.[[done]] is true, then + i. If environment is undefined, return PutValue(lhs, A). + ii. Return InitializeReferencedBinding(lhs, A). + +---*/ + +var callCount = 0; +function* f([, , ...x] = [1, 2]) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-iter-step-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-iter-step-err.js new file mode 100644 index 0000000000..8ce90e621d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-iter-step-err.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-iter-step-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error forwarding when IteratorStep returns an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + a. If iteratorRecord.[[done]] is false, + i. Let next be IteratorStep(iteratorRecord.[[iterator]]). + ii. If next is an abrupt completion, set iteratorRecord.[[done]] to + true. + iii. ReturnIfAbrupt(next). + +---*/ +var first = 0; +var second = 0; +var iter = function*() { + first += 1; + throw new Test262Error(); + second += 1; +}(); + +function* f([...x] = iter) {} + +assert.throws(Test262Error, function() { + f(); +}); + +iter.next(); +assert.sameValue(first, 1); +assert.sameValue(second, 0, 'Iterator is closed following abrupt completion.'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-iter-val-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-iter-val-err.js new file mode 100644 index 0000000000..75e6e91f85 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id-iter-val-err.js @@ -0,0 +1,72 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id-iter-val-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error forwarding when IteratorValue returns an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [Symbol.iterator, generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, + environment). + 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, + [...] + c. Let nextValue be IteratorValue(next). + d. If nextValue is an abrupt completion, set iteratorRecord.[[done]] to + true. + e. ReturnIfAbrupt(nextValue). + +---*/ +var poisonedValue = Object.defineProperty({}, 'value', { + get: function() { + throw new Test262Error(); + } +}); +var iter = {}; +iter[Symbol.iterator] = function() { + return { + next: function() { + return poisonedValue; + } + }; +}; + +function* f([...x] = iter) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id.js new file mode 100644 index 0000000000..f2a486d518 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-id.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Lone rest element (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + BindingRestElement : ... BindingIdentifier + [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat + [...] + f. Let status be CreateDataProperty(A, ToString (n), nextValue). + [...] +---*/ +var values = [1, 2, 3]; + +var callCount = 0; +function* f([...x] = values) { + assert(Array.isArray(x)); + assert.sameValue(x.length, 3); + assert.sameValue(x[0], 1); + assert.sameValue(x[1], 2); + assert.sameValue(x[2], 3); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-ary.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-ary.js new file mode 100644 index 0000000000..bf253ad62b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-ary.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-init-ary.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element (nested array pattern) does not support initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...[ x ] = []] = []) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-id.js new file mode 100644 index 0000000000..7b47998a9b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-id.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-init-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element (identifier) does not support initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...x = []] = []) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-obj.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-obj.js new file mode 100644 index 0000000000..86b09cdf04 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-init-obj.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-init-obj.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element (nested object pattern) does not support initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...{ x } = []] = []) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-ary.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-ary.js new file mode 100644 index 0000000000..36f8546852 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-ary.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element (array binding pattern) may not be followed by any element (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...[x], y] = [1, 2, 3]) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-id.js new file mode 100644 index 0000000000..7b55ea42d7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-id.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-not-final-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element (identifier) may not be followed by any element (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...x, y] = [1, 2, 3]) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-obj.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-obj.js new file mode 100644 index 0000000000..6600c24443 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-not-final-obj.js @@ -0,0 +1,58 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element (object binding pattern) may not be followed by any element (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + ArrayBindingPattern[Yield] : + [ Elisionopt BindingRestElement[?Yield]opt ] + [ BindingElementList[?Yield] ] + [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] +---*/ +$DONOTEVALUATE(); + +var callCount = 0; +function* f([...{ x }, y] = [1, 2, 3]) { + + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-obj-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-obj-id.js new file mode 100644 index 0000000000..6fd55ed9f0 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-obj-id.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-obj-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element containing an object binding pattern (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] +---*/ + +var callCount = 0; +function* f([...{ length }] = [1, 2, 3]) { + assert.sameValue(length, 3); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-obj-prop-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-obj-prop-id.js new file mode 100644 index 0000000000..d80ed3e5a1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-ary-ptrn-rest-obj-prop-id.js @@ -0,0 +1,69 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest element containing an object binding pattern (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingRestElement : ... BindingPattern + + 1. Let A be ArrayCreate(0). + [...] + 3. Repeat + [...] + b. If iteratorRecord.[[done]] is true, then + i. Return the result of performing BindingInitialization of + BindingPattern with A and environment as the arguments. + [...] +---*/ +let length = "outer"; + +var callCount = 0; +function* f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) { + assert.sameValue(v, 7); + assert.sameValue(w, 8); + assert.sameValue(x, 9); + assert.sameValue(y, undefined); + assert.sameValue(z, 3); + + assert.sameValue(length, "outer", "the length prop is not set as a binding name"); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-init-null.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-init-null.js new file mode 100644 index 0000000000..447533f2b4 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-init-null.js @@ -0,0 +1,53 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-init-null.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Value specifed for object binding pattern must be object coercible (null) (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + ObjectBindingPattern : { } + + 1. Return NormalCompletion(empty). +---*/ + +function* f({} = null) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-init-undefined.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-init-undefined.js new file mode 100644 index 0000000000..96c3faceee --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-init-undefined.js @@ -0,0 +1,53 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-init-undefined.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Value specifed for object binding pattern must be object coercible (undefined) (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + ObjectBindingPattern : { } + + 1. Return NormalCompletion(empty). +---*/ + +function* f({} = undefined) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-empty.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-empty.js new file mode 100644 index 0000000000..fd0049c958 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-empty.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-empty.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: No property access occurs for an "empty" object binding pattern (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + ObjectBindingPattern : { } + + 1. Return NormalCompletion(empty). +---*/ +var accessCount = 0; +var obj = Object.defineProperty({}, 'attr', { + get: function() { + accessCount += 1; + } +}); + +var callCount = 0; +function* f({} = obj) { + assert.sameValue(accessCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-get-value-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-get-value-err.js new file mode 100644 index 0000000000..94bb067028 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-get-value-err.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-get-value-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error thrown when accessing the corresponding property of the value object (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. Let v be GetV(value, propertyName). + 5. ReturnIfAbrupt(v). +---*/ +var poisonedProperty = Object.defineProperty({}, 'poisoned', { + get: function() { + throw new Test262Error(); + } +}); + +function* f({ poisoned } = poisonedProperty) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js new file mode 100644 index 0000000000..8865dae913 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-arrow.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns `name` to arrow functions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ arrow = () => {} } = {}) { + assert.sameValue(arrow.name, 'arrow'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-class.js new file mode 100644 index 0000000000..120764e074 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-class.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) { + assert.sameValue(cls.name, 'cls'); + assert.notSameValue(xCls.name, 'xCls'); + assert.notSameValue(xCls2.name, 'xCls2'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-cover.js new file mode 100644 index 0000000000..e0734ed86e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-cover.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ cover = (function () {}), xCover = (0, function() {}) } = {}) { + assert.sameValue(cover.name, 'cover'); + assert.notSameValue(xCover.name, 'xCover'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-fn.js new file mode 100644 index 0000000000..a23ac6eeca --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-fn.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ fn = function () {}, xFn = function x() {} } = {}) { + assert.sameValue(fn.name, 'fn'); + assert.notSameValue(xFn.name, 'xFn'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js new file mode 100644 index 0000000000..83f4092ad5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-fn-name-gen.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). + +---*/ + +var callCount = 0; +function* f({ gen = function* () {}, xGen = function* x() {} } = {}) { + assert.sameValue(gen.name, 'gen'); + assert.notSameValue(xGen.name, 'xGen'); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-skipped.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-skipped.js new file mode 100644 index 0000000000..a76e614ede --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-skipped.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-skipped.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + [...] +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var callCount = 0; +function* f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) { + assert.sameValue(w, null); + assert.sameValue(x, 0); + assert.sameValue(y, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-throws.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-throws.js new file mode 100644 index 0000000000..5521677612 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-throws.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-throws.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error thrown when evaluating the initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). +---*/ +function thrower() { + throw new Test262Error(); +} + +function* f({ x = thrower() } = {}) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-unresolvable.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-unresolvable.js new file mode 100644 index 0000000000..907bad7d5c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-init-unresolvable.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + + 6.2.3.1 GetValue (V) + + 1. ReturnIfAbrupt(V). + 2. If Type(V) is not Reference, return V. + 3. Let base be GetBase(V). + 4. If IsUnresolvableReference(V), throw a ReferenceError exception. +---*/ + +function* f({ x = unresolvableReference } = {}) {} + +assert.throws(ReferenceError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-trailing-comma.js new file mode 100644 index 0000000000..7257f4ae99 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-id-trailing-comma.js @@ -0,0 +1,56 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-trailing-comma.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + + ObjectBindingPattern[Yield] : + { } + { BindingPropertyList[?Yield] } + { BindingPropertyList[?Yield] , } +---*/ + +var callCount = 0; +function* f({ x, } = { x: 23 }) { + assert.sameValue(x, 23); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-list-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-list-err.js new file mode 100644 index 0000000000..ecc6954c8c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-list-err.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-list-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Binding property list evaluation is interrupted by an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPropertyList : BindingPropertyList , BindingProperty + + 1. Let status be the result of performing BindingInitialization for + BindingPropertyList using value and environment as arguments. + 2. ReturnIfAbrupt(status). +---*/ +var initCount = 0; +function thrower() { + throw new Test262Error(); +} + +function* f({ a, b = thrower(), c = ++initCount } = {}) {} + +assert.throws(Test262Error, function() { + f(); +}); + +assert.sameValue(initCount, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-init.js new file mode 100644 index 0000000000..976483e6cc --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-init.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" array binding pattern using initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: [x, y, z] = [4, 5, 6] } = {}) { + assert.sameValue(x, 4); + assert.sameValue(y, 5); + assert.sameValue(z, 6); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js new file mode 100644 index 0000000000..79044cc81e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-trailing-comma.js @@ -0,0 +1,56 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + + ObjectBindingPattern[Yield] : + { } + { BindingPropertyList[?Yield] } + { BindingPropertyList[?Yield] , } +---*/ + +var callCount = 0; +function* f({ x: [y], } = { x: [45] }) { + assert.sameValue(y,45); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-value-null.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-value-null.js new file mode 100644 index 0000000000..bec276192a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary-value-null.js @@ -0,0 +1,55 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +function* f({ w: [x, y, z] = [4, 5, 6] } = { w: null }) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary.js new file mode 100644 index 0000000000..67c750f56f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-ary.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" array binding pattern not using initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) { + assert.sameValue(x, 7); + assert.sameValue(y, undefined); + assert.sameValue(z, undefined); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-eval-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-eval-err.js new file mode 100644 index 0000000000..0ed24be60d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-eval-err.js @@ -0,0 +1,57 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-eval-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Evaluation of property name returns an abrupt completion (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingProperty : PropertyName : BindingElement + + 1. Let P be the result of evaluating PropertyName + 2. ReturnIfAbrupt(P). +---*/ +function thrower() { + throw new Test262Error(); +} + +function* f({ [thrower()]: x } = {}) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-get-value-err.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-get-value-err.js new file mode 100644 index 0000000000..01abbe3a86 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-get-value-err.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error thrown when accessing the corresponding property of the value object (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. Let v be GetV(value, propertyName). + 2. ReturnIfAbrupt(v). +---*/ +var initEvalCount = 0; +var poisonedProperty = Object.defineProperty({}, 'poisoned', { + get: function() { + throw new Test262Error(); + } +}); + +function* f({ poisoned: x = ++initEvalCount } = poisonedProperty) {} + +assert.throws(Test262Error, function() { + f(); +}); + +assert.sameValue(initEvalCount, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-skipped.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-skipped.js new file mode 100644 index 0000000000..f71580643b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-skipped.js @@ -0,0 +1,78 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + [...] +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var callCount = 0; +function* f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) { + assert.sameValue(t, null); + assert.sameValue(v, 0); + assert.sameValue(x, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + + assert.throws(ReferenceError, function() { + s; + }); + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-throws.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-throws.js new file mode 100644 index 0000000000..9654cbf55b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-throws.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Error thrown when evaluating the initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). +---*/ +function thrower() { + throw new Test262Error(); +} + +function* f({ x: y = thrower() } = {}) {} + +assert.throws(Test262Error, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js new file mode 100644 index 0000000000..a9a0838fd5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init-unresolvable.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Destructuring initializer is an unresolvable reference (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + + 6.2.3.1 GetValue (V) + + 1. ReturnIfAbrupt(V). + 2. If Type(V) is not Reference, return V. + 3. Let base be GetBase(V). + 4. If IsUnresolvableReference(V), throw a ReferenceError exception. +---*/ + +function* f({ x: y = unresolvableReference } = {}) {} + +assert.throws(ReferenceError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init.js new file mode 100644 index 0000000000..e8e0cc2755 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-init.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Binding as specified via property name, identifier, and initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f({ x: y = 33 } = { }) { + assert.sameValue(y, 33); + assert.throws(ReferenceError, function() { + x; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js new file mode 100644 index 0000000000..eb52e18c01 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id-trailing-comma.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Trailing comma is allowed following BindingPropertyList (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + + ObjectBindingPattern[Yield] : + { } + { BindingPropertyList[?Yield] } + { BindingPropertyList[?Yield] , } +---*/ + +var callCount = 0; +function* f({ x: y, } = { x: 23 }) { + assert.sameValue(y, 23); + + assert.throws(ReferenceError, function() { + x; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id.js new file mode 100644 index 0000000000..25a935f599 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-id.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Binding as specified via property name and identifier (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f({ x: y } = { x: 23 }) { + assert.sameValue(y, 23); + assert.throws(ReferenceError, function() { + x; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-init.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-init.js new file mode 100644 index 0000000000..2a81df1362 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-init.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj-init.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" object binding pattern using initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) { + assert.sameValue(x, 4); + assert.sameValue(y, 5); + assert.sameValue(z, 6); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-value-null.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-value-null.js new file mode 100644 index 0000000000..254bd5f4cd --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-value-null.js @@ -0,0 +1,55 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: null }) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-value-undef.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-value-undef.js new file mode 100644 index 0000000000..bef3291660 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj-value-undef.js @@ -0,0 +1,55 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case +// - src/dstr-binding/error/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +function* f({ w: { x, y, z } = undefined } = { }) {} + +assert.throws(TypeError, function() { + f(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj.js new file mode 100644 index 0000000000..9210c8e1b3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-prop-obj.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Object binding pattern with "nested" object binding pattern not using initializer (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding, default-parameters] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) { + assert.sameValue(x, undefined); + assert.sameValue(y, undefined); + assert.sameValue(z, 7); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-getter.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-getter.js new file mode 100644 index 0000000000..0b2e08c505 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-getter.js @@ -0,0 +1,58 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-rest-getter.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Getter is called when obj is being deconstructed to a rest Object (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [object-rest, generators, destructuring-binding, default-parameters] +flags: [generated] +includes: [propertyHelper.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] +---*/ +var count = 0; + +var callCount = 0; +function* f({...x} = { get v() { count++; return 2; } }) { + assert.sameValue(count, 1); + + verifyProperty(x, "v", { + enumerable: true, + writable: true, + configurable: true, + value: 2 + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js new file mode 100644 index 0000000000..3bcf4bc03f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-skip-non-enumerable.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest object doesn't contain non-enumerable properties (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [object-rest, generators, destructuring-binding, default-parameters] +flags: [generated] +includes: [propertyHelper.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] +---*/ +var o = {a: 3, b: 4}; +Object.defineProperty(o, "x", { value: 4, enumerable: false }); + +var callCount = 0; +function* f({...rest} = o) { + assert.sameValue(rest.x, undefined); + + verifyProperty(rest, "a", { + enumerable: true, + writable: true, + configurable: true, + value: 3 + }); + + verifyProperty(rest, "b", { + enumerable: true, + writable: true, + configurable: true, + value: 4 + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-val-obj.js b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-val-obj.js new file mode 100644 index 0000000000..2c5a0de59b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/dflt-obj-ptrn-rest-val-obj.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-rest-val-obj.case +// - src/dstr-binding/default/gen-func-decl-dflt.template +/*--- +description: Rest object contains just unextracted data (generator function declaration (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [object-rest, generators, destructuring-binding, default-parameters] +flags: [generated] +includes: [propertyHelper.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] +---*/ + +var callCount = 0; +function* f({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) { + assert.sameValue(rest.a, undefined); + assert.sameValue(rest.b, undefined); + + verifyProperty(rest, "x", { + enumerable: true, + writable: true, + configurable: true, + value: 1 + }); + + verifyProperty(rest, "y", { + enumerable: true, + writable: true, + configurable: true, + value: 2 + }); + callCount = callCount + 1; +}; +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-init-null.js b/js/src/tests/test262/language/statements/generators/dstr/obj-init-null.js new file mode 100644 index 0000000000..c7b9ebcc6e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-init-null.js @@ -0,0 +1,53 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-init-null.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Value specifed for object binding pattern must be object coercible (null) (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + ObjectBindingPattern : { } + + 1. Return NormalCompletion(empty). +---*/ + +function* f({}) {} + +assert.throws(TypeError, function() { + f(null); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-init-undefined.js b/js/src/tests/test262/language/statements/generators/dstr/obj-init-undefined.js new file mode 100644 index 0000000000..a848b4ecd6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-init-undefined.js @@ -0,0 +1,53 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-init-undefined.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Value specifed for object binding pattern must be object coercible (undefined) (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + ObjectBindingPattern : { } + + 1. Return NormalCompletion(empty). +---*/ + +function* f({}) {} + +assert.throws(TypeError, function() { + f(undefined); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-empty.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-empty.js new file mode 100644 index 0000000000..9b32514df7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-empty.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-empty.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: No property access occurs for an "empty" object binding pattern (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + Runtime Semantics: BindingInitialization + + ObjectBindingPattern : { } + + 1. Return NormalCompletion(empty). +---*/ +var accessCount = 0; +var obj = Object.defineProperty({}, 'attr', { + get: function() { + accessCount += 1; + } +}); + +var callCount = 0; +function* f({}) { + assert.sameValue(accessCount, 0); + callCount = callCount + 1; +}; +f(obj).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-get-value-err.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-get-value-err.js new file mode 100644 index 0000000000..81b68df892 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-get-value-err.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-get-value-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error thrown when accessing the corresponding property of the value object (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. Let v be GetV(value, propertyName). + 5. ReturnIfAbrupt(v). +---*/ +var poisonedProperty = Object.defineProperty({}, 'poisoned', { + get: function() { + throw new Test262Error(); + } +}); + +function* f({ poisoned }) {} + +assert.throws(Test262Error, function() { + f(poisonedProperty); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-arrow.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-arrow.js new file mode 100644 index 0000000000..a5ed67f583 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-arrow.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns `name` to arrow functions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ arrow = () => {} }) { + assert.sameValue(arrow.name, 'arrow'); + callCount = callCount + 1; +}; +f({}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-class.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-class.js new file mode 100644 index 0000000000..09ceecbbdb --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-class.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns `name` to "anonymous" classes (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) { + assert.sameValue(cls.name, 'cls'); + assert.notSameValue(xCls.name, 'xCls'); + assert.notSameValue(xCls2.name, 'xCls2'); + callCount = callCount + 1; +}; +f({}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-cover.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-cover.js new file mode 100644 index 0000000000..a5b47f9827 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-cover.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ cover = (function () {}), xCover = (0, function() {}) }) { + assert.sameValue(cover.name, 'cover'); + assert.notSameValue(xCover.name, 'xCover'); + callCount = callCount + 1; +}; +f({}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-fn.js new file mode 100644 index 0000000000..b685b28bba --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-fn.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns name to "anonymous" functions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). +---*/ + +var callCount = 0; +function* f({ fn = function () {}, xFn = function x() {} }) { + assert.sameValue(fn.name, 'fn'); + assert.notSameValue(xFn.name, 'xFn'); + callCount = callCount + 1; +}; +f({}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-gen.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-gen.js new file mode 100644 index 0000000000..7db82c0115 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-fn-name-gen.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding assigns name to "anonymous" generator functions (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + d. If IsAnonymousFunctionDefinition(Initializer) is true, then + i. Let hasNameProperty be HasOwnProperty(v, "name"). + ii. ReturnIfAbrupt(hasNameProperty). + iii. If hasNameProperty is false, perform SetFunctionName(v, + bindingId). + +---*/ + +var callCount = 0; +function* f({ gen = function* () {}, xGen = function* x() {} }) { + assert.sameValue(gen.name, 'gen'); + assert.notSameValue(xGen.name, 'xGen'); + callCount = callCount + 1; +}; +f({}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-skipped.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-skipped.js new file mode 100644 index 0000000000..1c3121fdce --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-skipped.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-skipped.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + [...] + [...] +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var callCount = 0; +function* f({ w = counter(), x = counter(), y = counter(), z = counter() }) { + assert.sameValue(w, null); + assert.sameValue(x, 0); + assert.sameValue(y, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + callCount = callCount + 1; +}; +f({ w: null, x: 0, y: false, z: '' }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-throws.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-throws.js new file mode 100644 index 0000000000..189d76f211 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-throws.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-throws.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error thrown when evaluating the initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). +---*/ +function thrower() { + throw new Test262Error(); +} + +function* f({ x = thrower() }) {} + +assert.throws(Test262Error, function() { + f({}); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-unresolvable.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-unresolvable.js new file mode 100644 index 0000000000..f90a60608c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-init-unresolvable.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-init-unresolvable.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Destructuring initializer is an unresolvable reference (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 6. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + + 6.2.3.1 GetValue (V) + + 1. ReturnIfAbrupt(V). + 2. If Type(V) is not Reference, return V. + 3. Let base be GetBase(V). + 4. If IsUnresolvableReference(V), throw a ReferenceError exception. +---*/ + +function* f({ x = unresolvableReference }) {} + +assert.throws(ReferenceError, function() { + f({}); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-trailing-comma.js new file mode 100644 index 0000000000..2e84e3cee0 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-id-trailing-comma.js @@ -0,0 +1,56 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-id-trailing-comma.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Trailing comma is allowed following BindingPropertyList (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + + ObjectBindingPattern[Yield] : + { } + { BindingPropertyList[?Yield] } + { BindingPropertyList[?Yield] , } +---*/ + +var callCount = 0; +function* f({ x, }) { + assert.sameValue(x, 23); + callCount = callCount + 1; +}; +f({ x: 23 }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-list-err.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-list-err.js new file mode 100644 index 0000000000..61f598558e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-list-err.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-list-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Binding property list evaluation is interrupted by an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingPropertyList : BindingPropertyList , BindingProperty + + 1. Let status be the result of performing BindingInitialization for + BindingPropertyList using value and environment as arguments. + 2. ReturnIfAbrupt(status). +---*/ +var initCount = 0; +function thrower() { + throw new Test262Error(); +} + +function* f({ a, b = thrower(), c = ++initCount }) {} + +assert.throws(Test262Error, function() { + f({}); +}); + +assert.sameValue(initCount, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-init.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-init.js new file mode 100644 index 0000000000..c909c78b71 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-init.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" array binding pattern using initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: [x, y, z] = [4, 5, 6] }) { + assert.sameValue(x, 4); + assert.sameValue(y, 5); + assert.sameValue(z, 6); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f({}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-trailing-comma.js new file mode 100644 index 0000000000..ff3428a01c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-trailing-comma.js @@ -0,0 +1,56 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Trailing comma is allowed following BindingPropertyList (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + + ObjectBindingPattern[Yield] : + { } + { BindingPropertyList[?Yield] } + { BindingPropertyList[?Yield] , } +---*/ + +var callCount = 0; +function* f({ x: [y], }) { + assert.sameValue(y,45); + callCount = callCount + 1; +}; +f({ x: [45] }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-value-null.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-value-null.js new file mode 100644 index 0000000000..caed1efbf4 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary-value-null.js @@ -0,0 +1,55 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary-value-null.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" array binding pattern taking the `null` value (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +function* f({ w: [x, y, z] = [4, 5, 6] }) {} + +assert.throws(TypeError, function() { + f({ w: null }); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary.js new file mode 100644 index 0000000000..45d0cc62e1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-ary.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-ary.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" array binding pattern not using initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: [x, y, z] = [4, 5, 6] }) { + assert.sameValue(x, 7); + assert.sameValue(y, undefined); + assert.sameValue(z, undefined); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f({ w: [7, undefined, ] }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-eval-err.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-eval-err.js new file mode 100644 index 0000000000..10a8a93a4c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-eval-err.js @@ -0,0 +1,57 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-eval-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Evaluation of property name returns an abrupt completion (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.5 Runtime Semantics: BindingInitialization + + BindingProperty : PropertyName : BindingElement + + 1. Let P be the result of evaluating PropertyName + 2. ReturnIfAbrupt(P). +---*/ +function thrower() { + throw new Test262Error(); +} + +function* f({ [thrower()]: x }) {} + +assert.throws(Test262Error, function() { + f({}); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-get-value-err.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-get-value-err.js new file mode 100644 index 0000000000..0b27f0c3a1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-get-value-err.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-get-value-err.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error thrown when accessing the corresponding property of the value object (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + 1. Let v be GetV(value, propertyName). + 2. ReturnIfAbrupt(v). +---*/ +var initEvalCount = 0; +var poisonedProperty = Object.defineProperty({}, 'poisoned', { + get: function() { + throw new Test262Error(); + } +}); + +function* f({ poisoned: x = ++initEvalCount }) {} + +assert.throws(Test262Error, function() { + f(poisonedProperty); +}); + +assert.sameValue(initEvalCount, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-skipped.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-skipped.js new file mode 100644 index 0000000000..70ff1b6d1a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-skipped.js @@ -0,0 +1,78 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Destructuring initializer is not evaluated when value is not `undefined` (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + [...] +---*/ +var initCount = 0; +function counter() { + initCount += 1; +} + +var callCount = 0; +function* f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) { + assert.sameValue(t, null); + assert.sameValue(v, 0); + assert.sameValue(x, false); + assert.sameValue(z, ''); + assert.sameValue(initCount, 0); + + assert.throws(ReferenceError, function() { + s; + }); + assert.throws(ReferenceError, function() { + u; + }); + assert.throws(ReferenceError, function() { + w; + }); + assert.throws(ReferenceError, function() { + y; + }); + callCount = callCount + 1; +}; +f({ s: null, u: 0, w: false, y: '' }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-throws.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-throws.js new file mode 100644 index 0000000000..7ce5179fad --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-throws.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-throws.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Error thrown when evaluating the initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). +---*/ +function thrower() { + throw new Test262Error(); +} + +function* f({ x: y = thrower() }) {} + +assert.throws(Test262Error, function() { + f({}); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-unresolvable.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-unresolvable.js new file mode 100644 index 0000000000..5abdd969a7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init-unresolvable.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init-unresolvable.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Destructuring initializer is an unresolvable reference (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + BindingElement : BindingPattern Initializeropt + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + + 6.2.3.1 GetValue (V) + + 1. ReturnIfAbrupt(V). + 2. If Type(V) is not Reference, return V. + 3. Let base be GetBase(V). + 4. If IsUnresolvableReference(V), throw a ReferenceError exception. +---*/ + +function* f({ x: y = unresolvableReference }) {} + +assert.throws(ReferenceError, function() { + f({}); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init.js new file mode 100644 index 0000000000..f2be8328f7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-init.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Binding as specified via property name, identifier, and initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f({ x: y = 33 }) { + assert.sameValue(y, 33); + assert.throws(ReferenceError, function() { + x; + }); + callCount = callCount + 1; +}; +f({ }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-trailing-comma.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-trailing-comma.js new file mode 100644 index 0000000000..80d26f50a5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id-trailing-comma.js @@ -0,0 +1,60 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Trailing comma is allowed following BindingPropertyList (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3 Destructuring Binding Patterns + + ObjectBindingPattern[Yield] : + { } + { BindingPropertyList[?Yield] } + { BindingPropertyList[?Yield] , } +---*/ + +var callCount = 0; +function* f({ x: y, }) { + assert.sameValue(y, 23); + + assert.throws(ReferenceError, function() { + x; + }); + callCount = callCount + 1; +}; +f({ x: 23 }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id.js new file mode 100644 index 0000000000..9c1aa78c65 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-id.js @@ -0,0 +1,59 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-id.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Binding as specified via property name and identifier (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f({ x: y }) { + assert.sameValue(y, 23); + assert.throws(ReferenceError, function() { + x; + }); + callCount = callCount + 1; +}; +f({ x: 23 }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-init.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-init.js new file mode 100644 index 0000000000..4bfe00d8ed --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-init.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" object binding pattern using initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be GetValue(defaultValue). + c. ReturnIfAbrupt(v). + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) { + assert.sameValue(x, 4); + assert.sameValue(y, 5); + assert.sameValue(z, 6); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f({ w: undefined }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-value-null.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-value-null.js new file mode 100644 index 0000000000..703a216c95 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-value-null.js @@ -0,0 +1,55 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj-value-null.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {} + +assert.throws(TypeError, function() { + f({ w: null }); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-value-undef.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-value-undef.js new file mode 100644 index 0000000000..f3ddc0a9b8 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj-value-undef.js @@ -0,0 +1,55 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj-value-undef.case +// - src/dstr-binding/error/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" object binding pattern taking the `null` value (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +function* f({ w: { x, y, z } = undefined }) {} + +assert.throws(TypeError, function() { + f({ }); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj.js new file mode 100644 index 0000000000..eac87078f3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-prop-obj.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-prop-obj.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Object binding pattern with "nested" object binding pattern not using initializer (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.7 Runtime Semantics: KeyedBindingInitialization + + [...] + 3. If Initializer is present and v is undefined, then + [...] + 4. Return the result of performing BindingInitialization for BindingPattern + passing v and environment as arguments. +---*/ + +var callCount = 0; +function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) { + assert.sameValue(x, undefined); + assert.sameValue(y, undefined); + assert.sameValue(z, 7); + + assert.throws(ReferenceError, function() { + w; + }); + callCount = callCount + 1; +}; +f({ w: { x: undefined, z: 7 } }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-getter.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-getter.js new file mode 100644 index 0000000000..a6bd6854a9 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-getter.js @@ -0,0 +1,58 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-rest-getter.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Getter is called when obj is being deconstructed to a rest Object (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [object-rest, generators, destructuring-binding] +flags: [generated] +includes: [propertyHelper.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] +---*/ +var count = 0; + +var callCount = 0; +function* f({...x}) { + assert.sameValue(count, 1); + + verifyProperty(x, "v", { + enumerable: true, + writable: true, + configurable: true, + value: 2 + }); + callCount = callCount + 1; +}; +f({ get v() { count++; return 2; } }).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-skip-non-enumerable.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-skip-non-enumerable.js new file mode 100644 index 0000000000..f5b2501a1a --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-skip-non-enumerable.js @@ -0,0 +1,66 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest object doesn't contain non-enumerable properties (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [object-rest, generators, destructuring-binding] +flags: [generated] +includes: [propertyHelper.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] +---*/ +var o = {a: 3, b: 4}; +Object.defineProperty(o, "x", { value: 4, enumerable: false }); + +var callCount = 0; +function* f({...rest}) { + assert.sameValue(rest.x, undefined); + + verifyProperty(rest, "a", { + enumerable: true, + writable: true, + configurable: true, + value: 3 + }); + + verifyProperty(rest, "b", { + enumerable: true, + writable: true, + configurable: true, + value: 4 + }); + callCount = callCount + 1; +}; +f(o).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-val-obj.js b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-val-obj.js new file mode 100644 index 0000000000..5191cb3772 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/obj-ptrn-rest-val-obj.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/obj-ptrn-rest-val-obj.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: Rest object contains just unextracted data (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [object-rest, generators, destructuring-binding] +flags: [generated] +includes: [propertyHelper.js] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] +---*/ + +var callCount = 0; +function* f({a, b, ...rest}) { + assert.sameValue(rest.a, undefined); + assert.sameValue(rest.b, undefined); + + verifyProperty(rest, "x", { + enumerable: true, + writable: true, + configurable: true, + value: 1 + }); + + verifyProperty(rest, "y", { + enumerable: true, + writable: true, + configurable: true, + value: 2 + }); + callCount = callCount + 1; +}; +f({x: 1, y: 2, a: 5, b: 3}).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/dstr/shell.js b/js/src/tests/test262/language/statements/generators/dstr/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/shell.js diff --git a/js/src/tests/test262/language/statements/generators/eval-var-scope-syntax-err.js b/js/src/tests/test262/language/statements/generators/eval-var-scope-syntax-err.js new file mode 100644 index 0000000000..04dbe5a94e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/eval-var-scope-syntax-err.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/eval-var-scope-syntax-err.case +// - src/function-forms/error-no-strict/gen-func-decl.template +/*--- +description: sloppy direct eval in params introduces var (generator function declaration in sloppy code) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [default-parameters, generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + + Runtime Semantics: IteratorBindingInitialization + FormalParameter : BindingElement + + 1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment. + +---*/ + +var callCount = 0; +function* f(a = eval("var a = 42")) { + + callCount = callCount + 1; +} + +assert.throws(SyntaxError, function() { + f(); +}); + +assert.sameValue(callCount, 0, 'generator function body not evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/browser.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/browser.js diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/gen-func-decl-forbidden-ext-direct-access-prop-arguments.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/gen-func-decl-forbidden-ext-direct-access-prop-arguments.js new file mode 100644 index 0000000000..02b8f26aa2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/gen-func-decl-forbidden-ext-direct-access-prop-arguments.js @@ -0,0 +1,36 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-direct-access-prop-arguments.case +// - src/function-forms/forbidden-extensions/bullet-one/gen-func-decl.template +/*--- +description: Forbidden extension, f.arguments (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + + ECMAScript function objects defined using syntactic constructors in strict mode code must + not be created with own properties named "caller" or "arguments". Such own properties also + must not be created for function objects defined using an ArrowFunction, MethodDefinition, + GeneratorDeclaration, GeneratorExpression, AsyncGeneratorDeclaration, AsyncGeneratorExpression, + ClassDeclaration, ClassExpression, AsyncFunctionDeclaration, AsyncFunctionExpression, or + AsyncArrowFunction regardless of whether the definition is contained in strict mode code. + Built-in functions, strict functions created using the Function constructor, generator functions + created using the Generator constructor, async functions created using the AsyncFunction + constructor, and functions created using the bind method also must not be created with such own + properties. + +---*/ + +var callCount = 0; +function* f() { + assert.sameValue(f.hasOwnProperty("arguments"), false); + callCount++; +} + +f().next(); +assert.sameValue(callCount, 1, 'generator function body evaluated'); + + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/gen-func-decl-forbidden-ext-direct-access-prop-caller.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/gen-func-decl-forbidden-ext-direct-access-prop-caller.js new file mode 100644 index 0000000000..e2374ef984 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/gen-func-decl-forbidden-ext-direct-access-prop-caller.js @@ -0,0 +1,36 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-direct-access-prop-caller.case +// - src/function-forms/forbidden-extensions/bullet-one/gen-func-decl.template +/*--- +description: Forbidden extension, o.caller (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + + ECMAScript function objects defined using syntactic constructors in strict mode code must + not be created with own properties named "caller" or "arguments". Such own properties also + must not be created for function objects defined using an ArrowFunction, MethodDefinition, + GeneratorDeclaration, GeneratorExpression, AsyncGeneratorDeclaration, AsyncGeneratorExpression, + ClassDeclaration, ClassExpression, AsyncFunctionDeclaration, AsyncFunctionExpression, or + AsyncArrowFunction regardless of whether the definition is contained in strict mode code. + Built-in functions, strict functions created using the Function constructor, generator functions + created using the Generator constructor, async functions created using the AsyncFunction + constructor, and functions created using the bind method also must not be created with such own + properties. + +---*/ + +var callCount = 0; +function* f() { + assert.sameValue(f.hasOwnProperty("caller"), false); + callCount++; +} + +f().next(); +assert.sameValue(callCount, 1, 'generator function body evaluated'); + + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/shell.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b1/shell.js diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/browser.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/browser.js diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js new file mode 100644 index 0000000000..f54bcc46e9 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-indirect-access-own-prop-caller-get.case +// - src/function-forms/forbidden-extensions/bullet-two/gen-func-decl.template +/*--- +description: Forbidden extension, o.caller (generator function declaration) +esid: sec-generator-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + + If an implementation extends any function object with an own property named "caller" the value of + that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function + object. If it is an accessor property, the function that is the value of the property's [[Get]] + attribute must never return a strict function when called. + +---*/ +var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol(); +function inner() { + // This property may exist, but is forbidden from having a value that is a strict function object + return inner.hasOwnProperty("caller") + ? inner.caller + : CALLER_OWN_PROPERTY_DOES_NOT_EXIST; +} + +var callCount = 0; +function* f() { + "use strict"; + // This and the following conditional value is set in the test's .case file. + // For every test that has a "true" value here, there is a + // corresponding test that has a "false" value here. + // They are generated from two different case files, which use + // the same templates. + let descriptor = Object.getOwnPropertyDescriptor(inner, "caller"); + if (descriptor && descriptor.configurable && true) { + Object.defineProperty(inner, "caller", {get(){return 1}}); + } + var result = inner(); + if (descriptor && descriptor.configurable && true) { + assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.'); + } + + // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from + // forbidden-ext-indirect-access-prop-caller.case + // + // If the function object "inner" has an own property + // named "caller", then its value will be returned. + // + // If the function object "inner" DOES NOT have an + // own property named "caller", then the symbol + // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned. + if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) { + assert.notSameValue(result, f); + } + + callCount++; +} + +f().next(); + +assert.sameValue(callCount, 1, 'generator function body evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js new file mode 100644 index 0000000000..61f682b147 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-indirect-access-own-prop-caller-value.case +// - src/function-forms/forbidden-extensions/bullet-two/gen-func-decl.template +/*--- +description: Forbidden extension, o.caller (generator function declaration) +esid: sec-generator-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + + If an implementation extends any function object with an own property named "caller" the value of + that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function + object. If it is an accessor property, the function that is the value of the property's [[Get]] + attribute must never return a strict function when called. + +---*/ +var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol(); +function inner() { + // This property may exist, but is forbidden from having a value that is a strict function object + return inner.hasOwnProperty("caller") + ? inner.caller + : CALLER_OWN_PROPERTY_DOES_NOT_EXIST; +} + +var callCount = 0; +function* f() { + "use strict"; + // This and the following conditional value is set in the test's .case file. + // For every test that has a "true" value here, there is a + // corresponding test that has a "false" value here. + // They are generated from two different case files, which use + // the same templates. + let descriptor = Object.getOwnPropertyDescriptor(inner, "caller"); + if (descriptor && descriptor.configurable && true) { + Object.defineProperty(inner, "caller", {value: 1}); + } + var result = inner(); + if (descriptor && descriptor.configurable && true) { + assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.'); + } + + // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from + // forbidden-ext-indirect-access-prop-caller.case + // + // If the function object "inner" has an own property + // named "caller", then its value will be returned. + // + // If the function object "inner" DOES NOT have an + // own property named "caller", then the symbol + // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned. + if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) { + assert.notSameValue(result, f); + } + + callCount++; +} + +f().next(); + +assert.sameValue(callCount, 1, 'generator function body evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-prop-caller.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-prop-caller.js new file mode 100644 index 0000000000..9afd4406c1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/gen-func-decl-forbidden-ext-indirect-access-prop-caller.js @@ -0,0 +1,64 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/forbidden-ext-indirect-access-prop-caller.case +// - src/function-forms/forbidden-extensions/bullet-two/gen-func-decl.template +/*--- +description: Forbidden extension, o.caller (generator function declaration) +esid: sec-generator-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + + If an implementation extends any function object with an own property named "caller" the value of + that property, as observed using [[Get]] or [[GetOwnProperty]], must not be a strict function + object. If it is an accessor property, the function that is the value of the property's [[Get]] + attribute must never return a strict function when called. + +---*/ +var CALLER_OWN_PROPERTY_DOES_NOT_EXIST = Symbol(); +function inner() { + // This property may exist, but is forbidden from having a value that is a strict function object + return inner.hasOwnProperty("caller") + ? inner.caller + : CALLER_OWN_PROPERTY_DOES_NOT_EXIST; +} + +var callCount = 0; +function* f() { + "use strict"; + // This and the following conditional value is set in the test's .case file. + // For every test that has a "true" value here, there is a + // corresponding test that has a "false" value here. + // They are generated from two different case files, which use + // the same templates. + let descriptor = Object.getOwnPropertyDescriptor(inner, "caller"); + if (descriptor && descriptor.configurable && false) { + Object.defineProperty(inner, "caller", {}); + } + var result = inner(); + if (descriptor && descriptor.configurable && false) { + assert.sameValue(result, 1, 'If this test defined an own "caller" property on the inner function, then it should be accessible and should return the value it was set to.'); + } + + // "CALLER_OWN_PROPERTY_DOES_NOT_EXIST" is from + // forbidden-ext-indirect-access-prop-caller.case + // + // If the function object "inner" has an own property + // named "caller", then its value will be returned. + // + // If the function object "inner" DOES NOT have an + // own property named "caller", then the symbol + // CALLER_OWN_PROPERTY_DOES_NOT_EXIST will be returned. + if (result !== CALLER_OWN_PROPERTY_DOES_NOT_EXIST) { + assert.notSameValue(result, f); + } + + callCount++; +} + +f().next(); + +assert.sameValue(callCount, 1, 'generator function body evaluated'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/shell.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/b2/shell.js diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/browser.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/browser.js diff --git a/js/src/tests/test262/language/statements/generators/forbidden-ext/shell.js b/js/src/tests/test262/language/statements/generators/forbidden-ext/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/forbidden-ext/shell.js diff --git a/js/src/tests/test262/language/statements/generators/generator-created-after-decl-inst.js b/js/src/tests/test262/language/statements/generators/generator-created-after-decl-inst.js new file mode 100644 index 0000000000..f3dd6f7312 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/generator-created-after-decl-inst.js @@ -0,0 +1,26 @@ +// Copyright (C) 2018 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-generator-function-definitions-runtime-semantics-evaluatebody +description: > + The generator object is created after FunctionDeclarationInstantiation. +info: | + 14.4.10 Runtime Semantics: EvaluateBody + + 1. Perform ? FunctionDeclarationInstantiation(functionObject, argumentsList). + 2. Let G be ? OrdinaryCreateFromConstructor(functionObject, "%GeneratorPrototype%", + « [[GeneratorState]], [[GeneratorContext]] »). + 3. Perform GeneratorStart(G, FunctionBody). + ... + +features: [generators] +---*/ + +function* g(a = (g.prototype = null)) {} +var oldPrototype = g.prototype; +var it = g(); + +assert.notSameValue(Object.getPrototypeOf(it), oldPrototype); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/has-instance.js b/js/src/tests/test262/language/statements/generators/has-instance.js new file mode 100644 index 0000000000..964cb7a390 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/has-instance.js @@ -0,0 +1,15 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + A Generator object is an instance of a generator function. +es6id: 25.3 +features: [generators] +---*/ + +function* g() {} + +assert(g() instanceof g, 'Instance created via function invocation'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/invoke-as-constructor.js b/js/src/tests/test262/language/statements/generators/invoke-as-constructor.js new file mode 100644 index 0000000000..041fd4ff6b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/invoke-as-constructor.js @@ -0,0 +1,17 @@ +// Copyright (C) 2015 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Generator statements cannot be used as constructors. +es6id: 14.4 +features: [generators] +---*/ + +function* g(){} + +assert.throws(TypeError, function() { + var instance = new g(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/length-dflt.js b/js/src/tests/test262/language/statements/generators/length-dflt.js new file mode 100644 index 0000000000..1882a29404 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/length-dflt.js @@ -0,0 +1,62 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 14.1.6 +description: > + Default parameters' effect on function length +info: | + Function length is counted by the non initialized parameters in the left. + + 9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope) + + [...] + 2. Let len be the ExpectedArgumentCount of ParameterList. + 3. Perform ! DefinePropertyOrThrow(F, "length", PropertyDescriptor{[[Value]]: + len, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}). + [...] + + FormalsList : FormalParameter + + 1. If HasInitializer of FormalParameter is true return 0 + 2. Return 1. + + FormalsList : FormalsList , FormalParameter + + 1. Let count be the ExpectedArgumentCount of FormalsList. + 2. If HasInitializer of FormalsList is true or HasInitializer of + FormalParameter is true, return count. + 3. Return count+1. +features: [generators, default-parameters] +includes: [propertyHelper.js] +---*/ + + +function* f1(x = 42) {} + +assert.sameValue(f1.length, 0, 'FormalsList: x = 42'); +verifyNotEnumerable(f1, 'length'); +verifyNotWritable(f1, 'length'); +verifyConfigurable(f1, 'length'); + +function* f2(x = 42, y) {} + +assert.sameValue(f2.length, 0, 'FormalsList: x = 42, y'); +verifyNotEnumerable(f2, 'length'); +verifyNotWritable(f2, 'length'); +verifyConfigurable(f2, 'length'); + +function* f3(x, y = 42) {} + +assert.sameValue(f3.length, 1, 'FormalsList: x, y = 42'); +verifyNotEnumerable(f3, 'length'); +verifyNotWritable(f3, 'length'); +verifyConfigurable(f3, 'length'); + +function* f4(x, y = 42, z) {} + +assert.sameValue(f4.length, 1, 'FormalsList: x, y = 42, z'); +verifyNotEnumerable(f4, 'length'); +verifyNotWritable(f4, 'length'); +verifyConfigurable(f4, 'length'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/length-property-descriptor.js b/js/src/tests/test262/language/statements/generators/length-property-descriptor.js new file mode 100644 index 0000000000..65fd5e811e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/length-property-descriptor.js @@ -0,0 +1,19 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Generator functions should define a `length` property. +includes: [propertyHelper.js] +es6id: 25.2.4 +features: [generators] +---*/ + +function* g() {} + +assert.sameValue(g.length, 0); +verifyNotEnumerable(g, 'length'); +verifyNotWritable(g, 'length'); +verifyConfigurable(g, 'length'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/name.js b/js/src/tests/test262/language/statements/generators/name.js new file mode 100644 index 0000000000..4818f0f109 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/name.js @@ -0,0 +1,24 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: Assignment of function `name` attribute +es6id: 14.4.12 +info: | + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + [...] + 6. Perform SetFunctionName(F, name). +includes: [propertyHelper.js] +features: [generators] +---*/ + +function* g() {} + +assert.sameValue(g.name, 'g'); +verifyNotEnumerable(g, 'name'); +verifyNotWritable(g, 'name'); +verifyConfigurable(g, 'name'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/no-yield.js b/js/src/tests/test262/language/statements/generators/no-yield.js new file mode 100644 index 0000000000..e7d2aeaefc --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/no-yield.js @@ -0,0 +1,19 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Generators declared with GeneratorDeclaration syntax do not require a + `yield` expression. +es6id: 14.4 +features: [generators] +---*/ + +function *foo(a) {} + +var g = foo(3); + +assert.sameValue(g.next().value, undefined); +assert.sameValue(g.next().done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/object-destructuring-param-strict-body.js b/js/src/tests/test262/language/statements/generators/object-destructuring-param-strict-body.js new file mode 100644 index 0000000000..1863755399 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/object-destructuring-param-strict-body.js @@ -0,0 +1,134 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/object-destructuring-param-strict-body.case +// - src/function-forms/syntax/gen-func-decl.template +/*--- +description: ObjectBindingPattern and Use Strict Directive are not allowed to coexist for the same function. (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [rest-parameters, generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 13.3.3.4 Static Semantics: IsSimpleParameterList + + BindingElement : BindingPattern + + 1. Return false. + + 14.1.2 Static Semantics: Early Errors + + FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody } + FunctionDeclaration : function ( FormalParameters ) { FunctionBody } + FunctionExpression : function BindingIdentifier ( FormalParameters ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.2.1 Static Semantics: Early Errors + + ArrowFunction : ArrowParameters => ConciseBody + + - It is a Syntax Error if ContainsUseStrict of ConciseBody is true and + IsSimpleParameterList of ArrowParameters is false. + + 14.3.1 Static Semantics: Early Errors + + MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of PropertySetParameterList is false. + + 14.4.1 Static Semantics: Early Errors + + GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + GeneratorDeclaration : function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + GeneratorExpression : function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + 14.5.1 Static Semantics: Early Errors + + AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + AsyncGeneratorDeclaration : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } + AsyncGeneratorDeclaration : async function * ( FormalParameters ) { AsyncGeneratorBody } + AsyncGeneratorExpression : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.7.1 Static Semantics: Early Errors + + AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + AsyncFunctionDeclaration : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionDeclaration : async function ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionExpression : async function ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionExpression : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.8.1 Static Semantics: Early Errors + + AsyncArrowFunction : CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody + + - It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is true and + IsSimpleParameterList of CoverCallExpressionAndAsyncArrowHead is false. + +---*/ +$DONOTEVALUATE(); + +function* f({property}) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/generators/param-dflt-yield.js b/js/src/tests/test262/language/statements/generators/param-dflt-yield.js new file mode 100644 index 0000000000..8f3a7ef9bb --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/param-dflt-yield.js @@ -0,0 +1,25 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-generator-function-definitions +es6id: 14.4 +description: > + YieldExpression cannot be used within the FormalParameters of a generator + function +info: | + GeneratorDeclaration[Yield, Default] : + function * BindingIdentifier[?Yield] ( FormalParameters[Yield] ) { GeneratorBody } + + YieldExpression cannot be used within the FormalParameters of a generator + function because any expressions that are part of FormalParameters are + evaluated before the resulting generator object is in a resumable state. +features: [generators, default-parameters] +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +function* g(x = yield) {} diff --git a/js/src/tests/test262/language/statements/generators/params-dflt-args-unmapped.js b/js/src/tests/test262/language/statements/generators/params-dflt-args-unmapped.js new file mode 100644 index 0000000000..b1379dcd8d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/params-dflt-args-unmapped.js @@ -0,0 +1,83 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: Referencing the arguments object from a default parameter (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +es6id: 14.4.12 +features: [generators, default-parameters] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. +---*/ + +var callCount = 0; +function* f(x, _ = 0) { + assert.sameValue(x, undefined, 'parameter binding value (initial)'); + assert.sameValue( + arguments[0], undefined, 'arguments property value (initial)' + ); + + arguments[0] = 1; + + assert.sameValue( + x, undefined, 'parameter binding value (after arguments modification)' + ); + assert.sameValue( + arguments[0], 1, 'arguments property value (after arguments modification)' + ); + + x = 2; + + assert.sameValue( + x, 2, 'parameter binding value (after parameter binding modification)' + ); + assert.sameValue( + arguments[0], + 1, + 'arguments property value (after parameter binding modification)' + ); + callCount = callCount + 1; +} + +f().next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/params-dflt-ref-arguments.js b/js/src/tests/test262/language/statements/generators/params-dflt-ref-arguments.js new file mode 100644 index 0000000000..bc73a87f35 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/params-dflt-ref-arguments.js @@ -0,0 +1,62 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: Referencing the arguments object from a default parameter (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +es6id: 14.4.12 +features: [generators, default-parameters] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. +---*/ + +var callCount = 0; +function* f(x = arguments[2], y = arguments[3], z) { + assert.sameValue(x, 'third', 'first parameter'); + assert.sameValue(y, 'fourth', 'second parameter'); + assert.sameValue(z, 'third', 'third parameter'); + callCount = callCount + 1; +} + +f(undefined, undefined, 'third', 'fourth').next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/params-trailing-comma-multiple.js b/js/src/tests/test262/language/statements/generators/params-trailing-comma-multiple.js new file mode 100644 index 0000000000..7453319b42 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/params-trailing-comma-multiple.js @@ -0,0 +1,62 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/params-trailing-comma-multiple.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using multiple parameters (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , +---*/ + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(a, b,) { + assert.sameValue(a, 42); + assert.sameValue(b, 39); + callCount = callCount + 1; +} + +ref(42, 39, 1).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +assert.sameValue(ref.length, 2, 'length is properly set'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/params-trailing-comma-single.js b/js/src/tests/test262/language/statements/generators/params-trailing-comma-single.js new file mode 100644 index 0000000000..86cf35bb64 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/params-trailing-comma-single.js @@ -0,0 +1,61 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/params-trailing-comma-single.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using a single parameter (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , +---*/ + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(a,) { + assert.sameValue(a, 42); + callCount = callCount + 1; +} + +ref(42, 39).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +assert.sameValue(ref.length, 1, 'length is properly set'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/prototype-own-properties.js b/js/src/tests/test262/language/statements/generators/prototype-own-properties.js new file mode 100644 index 0000000000..d3587d0be7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/prototype-own-properties.js @@ -0,0 +1,15 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 25.2.4.2 +description: > + The `prototype` property of GeneratorFunction instances are created as + plain objects with no "own" properties. +features: [generators] +---*/ + +function* g() {} +var ownProperties = Object.getOwnPropertyNames(g.prototype); +assert.sameValue(ownProperties.length, 0); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/prototype-property-descriptor.js b/js/src/tests/test262/language/statements/generators/prototype-property-descriptor.js new file mode 100644 index 0000000000..6d34087cfa --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/prototype-property-descriptor.js @@ -0,0 +1,18 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Generator objects should define a `prototype` property. +includes: [propertyHelper.js] +es6id: 25.2.4 +features: [generators] +---*/ + +function* g() {} + +verifyNotEnumerable(g, 'prototype'); +verifyWritable(g, 'prototype'); +verifyNotConfigurable(g, 'prototype'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/prototype-relation-to-function.js b/js/src/tests/test262/language/statements/generators/prototype-relation-to-function.js new file mode 100644 index 0000000000..a5c2b8104c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/prototype-relation-to-function.js @@ -0,0 +1,20 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + The value of the [[Prototype]] internal slot of the GeneratorFunction + prototype object is the FunctionPrototype intrinsic object. +es6id: 25.2.2.2 +features: [generators] +---*/ + +function f() {} +function* g() {} + +assert.sameValue( + Object.getPrototypeOf(Object.getPrototypeOf(g)), + Object.getPrototypeOf(f) +); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/prototype-typeof.js b/js/src/tests/test262/language/statements/generators/prototype-typeof.js new file mode 100644 index 0000000000..f86584d346 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/prototype-typeof.js @@ -0,0 +1,15 @@ +// Copyright (C) 2015 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 25.2.4.2 +description: > + Whenever a GeneratorFunction instance is created another ordinary object is + also created and is the initial value of the generator function’s prototype + property. +features: [generators] +---*/ + +function* g() {} +assert.sameValue(typeof g.prototype, 'object'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/prototype-uniqueness.js b/js/src/tests/test262/language/statements/generators/prototype-uniqueness.js new file mode 100644 index 0000000000..adb22b820c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/prototype-uniqueness.js @@ -0,0 +1,16 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + GeneratorFunction instances are created with a unique prototype object. +es6id: 25.2.1 +features: [generators] +---*/ + +function* g1() {} +function* g2() {} + +assert(g1.prototype !== g2.prototype); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/prototype-value.js b/js/src/tests/test262/language/statements/generators/prototype-value.js new file mode 100644 index 0000000000..1cd94ba4e0 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/prototype-value.js @@ -0,0 +1,21 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Generator instances directly inherit properties from the object that is the + value of the prototype property of the Generator function that created the + instance. +es6id: 25.3 +features: [generators] +---*/ + +function* g() {} + +assert.sameValue( + Object.getPrototypeOf(g()), + g.prototype, + 'Instance created via function invocation' +); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/rest-param-strict-body.js b/js/src/tests/test262/language/statements/generators/rest-param-strict-body.js new file mode 100644 index 0000000000..9d84869552 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/rest-param-strict-body.js @@ -0,0 +1,134 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/rest-param-strict-body.case +// - src/function-forms/syntax/gen-func-decl.template +/*--- +description: RestParameter and Use Strict Directive are not allowed to coexist for the same function. (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [rest-parameters, generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + 14.1.13 Static Semantics: IsSimpleParameterList + + FormalParameters : FormalParameterList , FunctionRestParameter + + 1. Return false. + + 14.1.2 Static Semantics: Early Errors + + FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody } + FunctionDeclaration : function ( FormalParameters ) { FunctionBody } + FunctionExpression : function BindingIdentifier ( FormalParameters ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.2.1 Static Semantics: Early Errors + + ArrowFunction : ArrowParameters => ConciseBody + + - It is a Syntax Error if ContainsUseStrict of ConciseBody is true and + IsSimpleParameterList of ArrowParameters is false. + + 14.3.1 Static Semantics: Early Errors + + MethodDefinition : PropertyName ( UniqueFormalParameters ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + MethodDefinition : set PropertyName ( PropertySetParameterList ) { FunctionBody } + + - It is a Syntax Error if ContainsUseStrict of FunctionBody is true and + IsSimpleParameterList of PropertySetParameterList is false. + + 14.4.1 Static Semantics: Early Errors + + GeneratorMethod : * PropertyName ( UniqueFormalParameters ) { GeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + GeneratorDeclaration : function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + GeneratorExpression : function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + 14.5.1 Static Semantics: Early Errors + + AsyncGeneratorMethod : async * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + AsyncGeneratorDeclaration : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } + AsyncGeneratorDeclaration : async function * ( FormalParameters ) { AsyncGeneratorBody } + AsyncGeneratorExpression : async function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncGeneratorBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.7.1 Static Semantics: Early Errors + + AsyncMethod : async PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and + IsSimpleParameterList of UniqueFormalParameters is false. + + AsyncFunctionDeclaration : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionDeclaration : async function ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionExpression : async function ( FormalParameters ) { AsyncFunctionBody } + AsyncFunctionExpression : async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + - It is a Syntax Error if ContainsUseStrict of AsyncFunctionBody is true and + IsSimpleParameterList of FormalParameters is false. + + 14.8.1 Static Semantics: Early Errors + + AsyncArrowFunction : CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody + + - It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is true and + IsSimpleParameterList of CoverCallExpressionAndAsyncArrowHead is false. + +---*/ +$DONOTEVALUATE(); + +function* f(a,...rest) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/generators/rest-params-trailing-comma-early-error.js b/js/src/tests/test262/language/statements/generators/rest-params-trailing-comma-early-error.js new file mode 100644 index 0000000000..60f52da105 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/rest-params-trailing-comma-early-error.js @@ -0,0 +1,60 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/rest-params-trailing-comma-early-error.case +// - src/function-forms/syntax/gen-func-decl.template +/*--- +description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : + [empty] + FunctionRestParameter[?Yield, ?Await] + FormalParameterList[?Yield, ?Await] + FormalParameterList[?Yield, ?Await] , + FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await] +---*/ +$DONOTEVALUATE(); + +function* f(...a,) { + +} diff --git a/js/src/tests/test262/language/statements/generators/restricted-properties.js b/js/src/tests/test262/language/statements/generators/restricted-properties.js new file mode 100644 index 0000000000..262e6d762b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/restricted-properties.js @@ -0,0 +1,37 @@ +// Copyright (C) 2015 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Functions created using GeneratorFunction syntactic form do not have own + properties "caller" or "arguments", but inherit them from + %FunctionPrototype%. +features: [generators] +---*/ + +function* generator() {} + +assert.sameValue( + generator.hasOwnProperty('caller'), false, 'No "caller" own property' +); +assert.sameValue( + generator.hasOwnProperty('arguments'), false, 'No "arguments" own property' +); + +assert.throws(TypeError, function() { + return generator.caller; +}); + +assert.throws(TypeError, function() { + generator.caller = {}; +}); + +assert.throws(TypeError, function() { + return generator.arguments; +}); + +assert.throws(TypeError, function() { + generator.arguments = {}; +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/return.js b/js/src/tests/test262/language/statements/generators/return.js new file mode 100644 index 0000000000..cf1f53d0cd --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/return.js @@ -0,0 +1,22 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + return is a valid statement within generator function bodies. +es6id: 14.4 +features: [generators] +---*/ + +function* g1() { return; } +function* g2() { return 1; } + +var result = g1().next(); +assert.sameValue(result.value, undefined); +assert.sameValue(result.done, true); + +result = g2().next(); +assert.sameValue(result.value, 1); +assert.sameValue(result.done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-body-lex-distinct.js b/js/src/tests/test262/language/statements/generators/scope-body-lex-distinct.js new file mode 100644 index 0000000000..8a7a034473 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-body-lex-distinct.js @@ -0,0 +1,56 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + Creation of new lexical environment (distinct from the variable + environment) for the function body outside of strict mode +info: | + [...] + 29. If strict is false, then + a. Let lexEnv be NewDeclarativeEnvironment(varEnv). + b. NOTE: Non-strict functions use a separate lexical Environment Record + for top-level lexical declarations so that a direct eval can + determine whether any var scoped declarations introduced by the eval + code conflict with pre-existing top-level lexically scoped + declarations. This is not needed for strict functions because a + strict direct eval always places all declarations into a new + Environment Record. + [...] + + 18.2.1.3 Runtime Semantics: EvalDeclarationInstantiation + + [...] + 5. If strict is false, then + [...] + b. Let thisLex be lexEnv. + c. Assert: The following loop will terminate. + d. Repeat while thisLex is not the same as varEnv, + i. Let thisEnvRec be thisLex's EnvironmentRecord. + ii. If thisEnvRec is not an object Environment Record, then + 1. NOTE: The environment of with statements cannot contain any + lexical declaration so it doesn't need to be checked for + var/let hoisting conflicts. + 2. For each name in varNames, do + a. If thisEnvRec.HasBinding(name) is true, then + i. Throw a SyntaxError exception. + ii. NOTE: Annex B.3.5 defines alternate semantics for the + above step. + b. NOTE: A direct eval will not hoist var declaration over a + like-named lexical declaration. + iii. Let thisLex be thisLex's outer environment reference. +flags: [noStrict] +features: [generators, let] +---*/ + +function* g() { + let x; + eval('var x;'); +} +var iter = g(); + +assert.throws(SyntaxError, function() { + iter.next(); +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-param-elem-var-close.js b/js/src/tests/test262/language/statements/generators/scope-param-elem-var-close.js new file mode 100644 index 0000000000..7dcb433ee9 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-param-elem-var-close.js @@ -0,0 +1,34 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + sloppy direct evals in params introduce vars +info: | + [...] + 20. Else, + a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared. + b. Let calleeEnv be the LexicalEnvironment of calleeContext. + c. Let env be NewDeclarativeEnvironment(calleeEnv). + d. Let envRec be env's EnvironmentRecord. + [...] +flags: [noStrict] +features: [generators] +---*/ + +var x = 'outside'; +var probe1, probe2, probeBody; + +function* g( + _ = (eval('var x = "inside";'), probe1 = function() { return x; }), + __ = probe2 = function() { return x; } + ) { + probeBody = function() { return x; }; +} +g().next(); + +assert.sameValue(probe1(), 'inside'); +assert.sameValue(probe2(), 'inside'); +assert.sameValue(probeBody(), 'inside'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-param-elem-var-open.js b/js/src/tests/test262/language/statements/generators/scope-param-elem-var-open.js new file mode 100644 index 0000000000..aef1e39ce6 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-param-elem-var-open.js @@ -0,0 +1,32 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + sloppy direct evals in params introduce vars +info: | + [...] + 20. Else, + a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared. + b. Let calleeEnv be the LexicalEnvironment of calleeContext. + c. Let env be NewDeclarativeEnvironment(calleeEnv). + d. Let envRec be env's EnvironmentRecord. + [...] +flags: [noStrict] +features: [generators] +---*/ + +var x = 'outside'; +var probe1, probe2; + +function* g( + _ = probe1 = function() { return x; }, + __ = (eval('var x = "inside";'), probe2 = function() { return x; }) + ) { +} +g().next(); + +assert.sameValue(probe1(), 'inside'); +assert.sameValue(probe2(), 'inside'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-param-rest-elem-var-close.js b/js/src/tests/test262/language/statements/generators/scope-param-rest-elem-var-close.js new file mode 100644 index 0000000000..84cc0d71b2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-param-rest-elem-var-close.js @@ -0,0 +1,32 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + sloppy direct evals in params introduce vars +info: | + [...] + 20. Else, + a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared. + b. Let calleeEnv be the LexicalEnvironment of calleeContext. + c. Let env be NewDeclarativeEnvironment(calleeEnv). + d. Let envRec be env's EnvironmentRecord. + [...] +flags: [noStrict] +features: [generators] +---*/ + +var x = 'outside'; +var probeParam, probeBody; + +function* g( + ...[_ = (eval('var x = "inside";'), probeParam = function() { return x; })] + ) { + probeBody = function() { return x; } +} +g().next(); + +assert.sameValue(probeParam(), 'inside'); +assert.sameValue(probeBody(), 'inside'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-param-rest-elem-var-open.js b/js/src/tests/test262/language/statements/generators/scope-param-rest-elem-var-open.js new file mode 100644 index 0000000000..a7e8e00a50 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-param-rest-elem-var-open.js @@ -0,0 +1,32 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + sloppy direct evals in params introduce vars +info: | + [...] + 20. Else, + a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared. + b. Let calleeEnv be the LexicalEnvironment of calleeContext. + c. Let env be NewDeclarativeEnvironment(calleeEnv). + d. Let envRec be env's EnvironmentRecord. + [...] +flags: [noStrict] +features: [generators] +---*/ + +var x = 'outside'; +var probe1, probe2; + +function* g( + _ = probe1 = function() { return x; }, + ...[__ = (eval('var x = "inside";'), probe2 = function() { return x; })] + ) { +} +g().next(); + +assert.sameValue(probe1(), 'inside'); +assert.sameValue(probe2(), 'inside'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-paramsbody-var-close.js b/js/src/tests/test262/language/statements/generators/scope-paramsbody-var-close.js new file mode 100644 index 0000000000..64de0d62d3 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-paramsbody-var-close.js @@ -0,0 +1,38 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + Disposal of variable environment for the function body +info: | + [...] + 26. If hasParameterExpressions is false, then + [...] + 27. Else, + a. NOTE A separate Environment Record is needed to ensure that closures + created by expressions in the formal parameter list do not have + visibility of declarations in the function body. + b. Let varEnv be NewDeclarativeEnvironment(env). + c. Let varEnvRec be varEnv's EnvironmentRecord. + d. Set the VariableEnvironment of calleeContext to varEnv. + e. Let instantiatedVarNames be a new empty List. + [...] +features: [generators] +---*/ + +var probe; + +// A parameter expression is necessary to trigger the creation of the scope +// under test. +function* g(_ = null) { + var x = 'inside'; + probe = function() { return x; }; +} +g().next(); + +var x = 'outside'; + +assert.sameValue(probe(), 'inside'); +assert.sameValue(x, 'outside'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/scope-paramsbody-var-open.js b/js/src/tests/test262/language/statements/generators/scope-paramsbody-var-open.js new file mode 100644 index 0000000000..ac1ae44c34 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/scope-paramsbody-var-open.js @@ -0,0 +1,36 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-functiondeclarationinstantiation +description: > + Creation of new variable environment for the function body (as distinct from + that for the function's parameters) +info: | + [...] + 26. If hasParameterExpressions is false, then + [...] + 27. Else, + a. NOTE A separate Environment Record is needed to ensure that closures + created by expressions in the formal parameter list do not have + visibility of declarations in the function body. + b. Let varEnv be NewDeclarativeEnvironment(env). + c. Let varEnvRec be varEnv's EnvironmentRecord. + d. Set the VariableEnvironment of calleeContext to varEnv. + e. Let instantiatedVarNames be a new empty List. + [...] +features: [generators] +---*/ + +var x = 'outside'; +var probeParams, probeBody; + +function* g(_ = probeParams = function() { return x; }) { + var x = 'inside'; + probeBody = function() { return x; }; +} +g().next(); + +assert.sameValue(probeParams(), 'outside'); +assert.sameValue(probeBody(), 'inside'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/shell.js b/js/src/tests/test262/language/statements/generators/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/shell.js diff --git a/js/src/tests/test262/language/statements/generators/unscopables-with-in-nested-fn.js b/js/src/tests/test262/language/statements/generators/unscopables-with-in-nested-fn.js new file mode 100644 index 0000000000..e63d6c3998 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/unscopables-with-in-nested-fn.js @@ -0,0 +1,104 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/unscopables-with-in-nested-fn.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: Symbol.unscopables behavior across scope boundaries (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [globalThis, Symbol.unscopables, generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + ... + Let envRec be lex's EnvironmentRecord. + Let exists be ? envRec.HasBinding(name). + + HasBinding + + ... + If the withEnvironment flag of envRec is false, return true. + Let unscopables be ? Get(bindings, @@unscopables). + If Type(unscopables) is Object, then + Let blocked be ToBoolean(? Get(unscopables, N)). + If blocked is true, return false. + + (The `with` Statement) Runtime Semantics: Evaluation + + ... + Set the withEnvironment flag of newEnv’s EnvironmentRecord to true. + ... + +---*/ +let count = 0; +var v = 1; +globalThis[Symbol.unscopables] = { + v: true, +}; + +{ + count++; + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(x) { + (function() { + count++; + with (globalThis) { + count++; + assert.sameValue(v, 1, 'The value of `v` is 1'); + } + })(); + (function() { + count++; + var v = x; + with (globalThis) { + count++; + assert.sameValue(v, 10, 'The value of `v` is 10'); + v = 20; + } + assert.sameValue(v, 20, 'The value of `v` is 20'); + assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1'); + })(); + assert.sameValue(v, 1, 'The value of `v` is 1'); + assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1'); + callCount = callCount + 1; +} + +ref(10).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + + count++; +} +assert.sameValue(count, 6, 'The value of `count` is 6'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/unscopables-with.js b/js/src/tests/test262/language/statements/generators/unscopables-with.js new file mode 100644 index 0000000000..dd6b4f414d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/unscopables-with.js @@ -0,0 +1,98 @@ +// This file was procedurally generated from the following sources: +// - src/function-forms/unscopables-with.case +// - src/function-forms/default/gen-func-decl.template +/*--- +description: Symbol.unscopables behavior across scope boundaries (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [globalThis, Symbol.unscopables, generators] +flags: [generated, noStrict] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + + ... + Let envRec be lex's EnvironmentRecord. + Let exists be ? envRec.HasBinding(name). + + HasBinding + + ... + If the withEnvironment flag of envRec is false, return true. + Let unscopables be ? Get(bindings, @@unscopables). + If Type(unscopables) is Object, then + Let blocked be ToBoolean(? Get(unscopables, N)). + If blocked is true, return false. + + (The `with` Statement) Runtime Semantics: Evaluation + + ... + Set the withEnvironment flag of newEnv’s EnvironmentRecord to true. + ... + +---*/ +let count = 0; +var v = 1; +globalThis[Symbol.unscopables] = { + v: true, +}; + +{ + count++; + +var callCount = 0; +// Stores a reference `ref` for case evaluation +function* ref(x) { + count++; + with (globalThis) { + count++; + assert.sameValue(v, undefined, 'The value of `v` is expected to equal `undefined`'); + } + count++; + var v = x; + with (globalThis) { + count++; + assert.sameValue(v, 10, 'The value of `v` is 10'); + v = 20; + } + assert.sameValue(v, 20, 'The value of `v` is 20'); + assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1'); + callCount = callCount + 1; +} + +ref(10).next(); + +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + + count++; +} +assert.sameValue(count, 6, 'The value of `count` is 6'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/use-strict-with-non-simple-param.js b/js/src/tests/test262/language/statements/generators/use-strict-with-non-simple-param.js new file mode 100644 index 0000000000..3ae57eded4 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/use-strict-with-non-simple-param.js @@ -0,0 +1,23 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2015 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-generator-function-definitions-static-semantics-early-errors +description: > + A SyntaxError is thrown if a generator contains a non-simple parameter list and a UseStrict directive. +info: | + Static Semantics: Early Errors + + It is a Syntax Error if ContainsUseStrict of GeneratorBody is true and IsSimpleParameterList of FormalParameters is false. +negative: + phase: parse + type: SyntaxError +features: [generators] +---*/ + +$DONOTEVALUATE(); + +function* f(a = 0) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-binding-identifier-escaped.js b/js/src/tests/test262/language/statements/generators/yield-as-binding-identifier-escaped.js new file mode 100644 index 0000000000..edad56157b --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-binding-identifier-escaped.js @@ -0,0 +1,30 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/generators/yield-as-binding-identifier-escaped.case +// - src/generators/syntax/declaration.template +/*--- +description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + BindingIdentifier : Identifier + + It is a Syntax Error if this production has a [Yield] parameter and + StringValue of Identifier is "yield". + +---*/ +$DONOTEVALUATE(); + +function *gen() { + var yi\u0065ld; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-binding-identifier.js b/js/src/tests/test262/language/statements/generators/yield-as-binding-identifier.js new file mode 100644 index 0000000000..7837b6f9a2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-binding-identifier.js @@ -0,0 +1,30 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/generators/yield-as-binding-identifier.case +// - src/generators/syntax/declaration.template +/*--- +description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + BindingIdentifier : Identifier + + It is a Syntax Error if this production has a [Yield] parameter and + StringValue of Identifier is "yield". + +---*/ +$DONOTEVALUATE(); + +function *gen() { + var yield; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-function-expression-binding-identifier.js b/js/src/tests/test262/language/statements/generators/yield-as-function-expression-binding-identifier.js new file mode 100644 index 0000000000..dae59de887 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-function-expression-binding-identifier.js @@ -0,0 +1,23 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` may be used as the binding identifier of a function expression + within generator bodies. +es6id: 14.1 +flags: [noStrict] +features: [generators] +---*/ + +var result; +function* g() { + (function yield() {}) +} + +result = g().next(); + +assert.sameValue(result.value, undefined); +assert.sameValue(result.done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-as-generator-declaration-binding-identifier.js b/js/src/tests/test262/language/statements/generators/yield-as-generator-declaration-binding-identifier.js new file mode 100644 index 0000000000..26d6f54d2c --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-generator-declaration-binding-identifier.js @@ -0,0 +1,30 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` is a valid BindingIdentifier for GeneratorDeclarations outside of + strict mode. +es6id: 12.1.1 +flags: [noStrict] +features: [generators] +---*/ + +var iter, result; +function* yield() { (yield 3) + (yield 4); } + +iter = yield(); + +result = iter.next(); +assert.sameValue(result.value, 3, 'First result `value`'); +assert.sameValue(result.done, false, 'First result `done` flag'); + +result = iter.next(); +assert.sameValue(result.value, 4, 'Second result `value`'); +assert.sameValue(result.done, false, 'Second result `done` flag'); + +result = iter.next(); +assert.sameValue(result.value, undefined, 'Third result `value`'); +assert.sameValue(result.done, true, 'Third result `done` flag'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-as-identifier-in-nested-function.js b/js/src/tests/test262/language/statements/generators/yield-as-identifier-in-nested-function.js new file mode 100644 index 0000000000..3d55989017 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-identifier-in-nested-function.js @@ -0,0 +1,24 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` is not a reserved keyword within normal function bodies declared + within generator function bodies. +es6id: 12.1.1 +flags: [noStrict] +features: [generators] +---*/ + +var result; +function* g() { + function h() { + yield = 1; + } +} + +result = g().next(); +assert.sameValue(result.value, undefined); +assert.sameValue(result.done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-as-identifier-reference-escaped.js b/js/src/tests/test262/language/statements/generators/yield-as-identifier-reference-escaped.js new file mode 100644 index 0000000000..22c7c171f5 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-identifier-reference-escaped.js @@ -0,0 +1,30 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/generators/yield-as-identifier-reference-escaped.case +// - src/generators/syntax/declaration.template +/*--- +description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + IdentifierReference : Identifier + + It is a Syntax Error if this production has a [Yield] parameter and + StringValue of Identifier is "yield". + +---*/ +$DONOTEVALUATE(); + +function *gen() { + void yi\u0065ld; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-identifier-reference.js b/js/src/tests/test262/language/statements/generators/yield-as-identifier-reference.js new file mode 100644 index 0000000000..c38aa16c56 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-identifier-reference.js @@ -0,0 +1,30 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/generators/yield-as-identifier-reference.case +// - src/generators/syntax/declaration.template +/*--- +description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + IdentifierReference : Identifier + + It is a Syntax Error if this production has a [Yield] parameter and + StringValue of Identifier is "yield". + +---*/ +$DONOTEVALUATE(); + +function *gen() { + void yield; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-label-identifier-escaped.js b/js/src/tests/test262/language/statements/generators/yield-as-label-identifier-escaped.js new file mode 100644 index 0000000000..f596b33410 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-label-identifier-escaped.js @@ -0,0 +1,30 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/generators/yield-as-label-identifier-escaped.case +// - src/generators/syntax/declaration.template +/*--- +description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + LabelIdentifier : Identifier + + It is a Syntax Error if this production has a [Yield] parameter and + StringValue of Identifier is "yield". + +---*/ +$DONOTEVALUATE(); + +function *gen() { + yi\u0065ld: ; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-label-identifier.js b/js/src/tests/test262/language/statements/generators/yield-as-label-identifier.js new file mode 100644 index 0000000000..504094f0ed --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-label-identifier.js @@ -0,0 +1,30 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/generators/yield-as-label-identifier.case +// - src/generators/syntax/declaration.template +/*--- +description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + LabelIdentifier : Identifier + + It is a Syntax Error if this production has a [Yield] parameter and + StringValue of Identifier is "yield". + +---*/ +$DONOTEVALUATE(); + +function *gen() { + yield: ; +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-literal-property-name.js b/js/src/tests/test262/language/statements/generators/yield-as-literal-property-name.js new file mode 100644 index 0000000000..325bccfba7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-literal-property-name.js @@ -0,0 +1,21 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` may be used as a literal property name in an object literal + within generator function bodies. +es6id: 12.1.1 +features: [generators] +---*/ + +var result; +function* g() { + ({ get yield() { return 1 } }); +} + +result = g().next(); +assert.sameValue(result.value, undefined); +assert.sameValue(result.done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-as-logical-or-expression.js b/js/src/tests/test262/language/statements/generators/yield-as-logical-or-expression.js new file mode 100644 index 0000000000..de91cb5cba --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-logical-or-expression.js @@ -0,0 +1,20 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` expressions are not LogicalOrExpressions. +es6id: 12.1.1 +negative: + phase: parse + type: SyntaxError +features: [generators] +---*/ + +$DONOTEVALUATE(); + + +function* g() { + yield ? yield : yield +} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-parameter.js b/js/src/tests/test262/language/statements/generators/yield-as-parameter.js new file mode 100644 index 0000000000..84425578a2 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-parameter.js @@ -0,0 +1,18 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` is a reserved keyword within generator function bodies and may + not be used as the binding identifier of a parameter. +es6id: 12.1.1 +negative: + phase: parse + type: SyntaxError +features: [generators] +---*/ + +$DONOTEVALUATE(); + +function* g(yield) {} diff --git a/js/src/tests/test262/language/statements/generators/yield-as-property-name.js b/js/src/tests/test262/language/statements/generators/yield-as-property-name.js new file mode 100644 index 0000000000..5593f8f437 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-property-name.js @@ -0,0 +1,21 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` may be used as a literal property name in an object literal + within generator function bodies. +es6id: 12.1.1 +features: [generators] +---*/ + +var result; +function* g() { + ({ yield: 1 }); +} + +result = g().next(); +assert.sameValue(result.value, undefined); +assert.sameValue(result.done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-as-statement.js b/js/src/tests/test262/language/statements/generators/yield-as-statement.js new file mode 100644 index 0000000000..98f7b51a04 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-statement.js @@ -0,0 +1,47 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` is a valid statement within generator function bodies. +es6id: 14.4 +features: [generators] +---*/ + +var iter, result; +function* g1() { yield; } +function* g2() { yield 1; } + +iter = g1(); +result = iter.next(); +assert.sameValue( + result.value, undefined, 'Without right-hand-side: first result `value`' +); +assert.sameValue( + result.done, false, 'Without right-hand-side: first result `done` flag' +); +result = iter.next(); +assert.sameValue( + result.value, undefined, 'Without right-hand-side: second result `value`' +); +assert.sameValue( + result.done, true, 'Without right-hand-eside: second result `done` flag' +); + +iter = g2(); +result = iter.next(); +assert.sameValue( + result.value, 1, 'With right-hand-side: first result `value`' +); +assert.sameValue( + result.done, false, 'With right-hand-side: first result `done` flag' +); +result = iter.next(); +assert.sameValue( + result.value, undefined, 'With right-hand-side: second result `value`' +); +assert.sameValue( + result.done, true, 'With right-hand-eside: second result `done` flag' +); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-as-yield-operand.js b/js/src/tests/test262/language/statements/generators/yield-as-yield-operand.js new file mode 100644 index 0000000000..6c4ecfd004 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-as-yield-operand.js @@ -0,0 +1,31 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` expressions may be used as the right-hand-side of other `yield` + expressions. +es6id: 14.4 +features: [generators] +---*/ + +var iter, result; +function* g() { + yield yield 1; +} + +iter = g(); + +result = iter.next(); +assert.sameValue(result.value, 1, 'First result `value`'); +assert.sameValue(result.done, false, 'First result `done` flag'); + +result = iter.next(); +assert.sameValue(result.value, undefined, 'Second result `value`'); +assert.sameValue(result.done, false, 'Second result `done` flag'); + +result = iter.next(); +assert.sameValue(result.value, undefined, 'Third result `value`'); +assert.sameValue(result.done, true, 'Thid result `done` flag'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-identifier-non-strict.js b/js/src/tests/test262/language/statements/generators/yield-identifier-non-strict.js new file mode 100644 index 0000000000..d10a2b6ec7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-identifier-non-strict.js @@ -0,0 +1,41 @@ +// This file was procedurally generated from the following sources: +// - src/generators/yield-identifier-non-strict.case +// - src/generators/non-strict/declaration.template +/*--- +description: Use of yield as a valid identifier in a function body inside a generator body in non strict mode (Generator function declaration - valid for non-strict only cases) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated, noStrict] +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration[Yield, Await, Default]: + function * BindingIdentifier[?Yield, ?Await] ( FormalParameters[+Yield, ~Await] ) { GeneratorBody } + +---*/ + +var callCount = 0; + +function *gen() { + callCount += 1; + return (function(arg) { + var yield = arg + 1; + return yield; + }(yield)) +} + +var iter = gen(); + +var item = iter.next(); + +assert.sameValue(item.done, false); +assert.sameValue(item.value, undefined); + +item = iter.next(42); + +assert.sameValue(item.done, true); +assert.sameValue(item.value, 43); + +assert.sameValue(callCount, 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-identifier-spread-non-strict.js b/js/src/tests/test262/language/statements/generators/yield-identifier-spread-non-strict.js new file mode 100644 index 0000000000..824ea2f763 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-identifier-spread-non-strict.js @@ -0,0 +1,63 @@ +// This file was procedurally generated from the following sources: +// - src/generators/yield-identifier-spread-non-strict.case +// - src/generators/non-strict/declaration.template +/*--- +description: Mixed use of object spread and yield as a valid identifier in a function body inside a generator body in non strict mode (Generator function declaration - valid for non-strict only cases) +esid: prod-GeneratorDeclaration +features: [Symbol, object-spread, generators] +flags: [generated, noStrict] +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration[Yield, Await, Default]: + function * BindingIdentifier[?Yield, ?Await] ( FormalParameters[+Yield, ~Await] ) { GeneratorBody } + + + Spread Properties + + PropertyDefinition[Yield]: + (...) + ...AssignmentExpression[In, ?Yield] + +---*/ +var s = Symbol('s'); + +var callCount = 0; + +function *gen() { + callCount += 1; + yield { + ...yield yield, + ...(function(arg) { + var yield = arg; + return {...yield}; + }(yield)), + ...yield, + } +} + +var iter = gen(); + +var iter = gen(); + +iter.next(); +iter.next(); +iter.next({ x: 10, a: 0, b: 0, [s]: 1 }); +iter.next({ y: 20, a: 1, b: 1, [s]: 42 }); +var item = iter.next({ z: 30, b: 2 }); + +var value = item.value; + +assert.sameValue(item.done, false); +assert.sameValue(value.x, 10); +assert.sameValue(value.y, 20); +assert.sameValue(value.z, 30); +assert.sameValue(value.a, 1); +assert.sameValue(value.b, 2); +assert.sameValue(value[s], 42); +assert(Object.prototype.hasOwnProperty.call(value, s), "s is an own property"); +assert.sameValue(Object.keys(value).length, 5); + +assert.sameValue(callCount, 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-identifier-spread-strict-strict.js b/js/src/tests/test262/language/statements/generators/yield-identifier-spread-strict-strict.js new file mode 100644 index 0000000000..98f1951839 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-identifier-spread-strict-strict.js @@ -0,0 +1,46 @@ +// |reftest| error:SyntaxError +'use strict'; +// This file was procedurally generated from the following sources: +// - src/generators/yield-identifier-spread-strict.case +// - src/generators/default/declaration.template +/*--- +description: It's an early error if the AssignmentExpression is a function body with yield as an identifier in strict mode. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [object-spread, generators] +flags: [generated, onlyStrict] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + Spread Properties + + PropertyDefinition[Yield]: + (...) + ...AssignmentExpression[In, ?Yield] + +---*/ +$DONOTEVALUATE(); + +var callCount = 0; + +function *gen() { + callCount += 1; + return { + ...(function() { + var yield; + throw new Test262Error(); + }()), + } +} + +var iter = gen(); + + + +assert.sameValue(callCount, 1); diff --git a/js/src/tests/test262/language/statements/generators/yield-identifier-strict-strict.js b/js/src/tests/test262/language/statements/generators/yield-identifier-strict-strict.js new file mode 100644 index 0000000000..ecda48bd3d --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-identifier-strict-strict.js @@ -0,0 +1,37 @@ +// |reftest| error:SyntaxError +'use strict'; +// This file was procedurally generated from the following sources: +// - src/generators/yield-identifier-strict.case +// - src/generators/default/declaration.template +/*--- +description: It's an early error if the generator body has another function body with yield as an identifier in strict mode. (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated, onlyStrict] +negative: + phase: parse + type: SyntaxError +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + +---*/ +$DONOTEVALUATE(); + +var callCount = 0; + +function *gen() { + callCount += 1; + (function() { + var yield; + throw new Test262Error(); + }()) +} + +var iter = gen(); + + + +assert.sameValue(callCount, 1); diff --git a/js/src/tests/test262/language/statements/generators/yield-newline.js b/js/src/tests/test262/language/statements/generators/yield-newline.js new file mode 100644 index 0000000000..c1d8cc0912 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-newline.js @@ -0,0 +1,27 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + Newlines terminate `yield` expressions. +es6id: 14.4 +features: [generators] +---*/ + +var iter, result; +function* g() { + yield + 1 +} + +iter = g(); + +result = iter.next(); +assert.sameValue(result.value, undefined, 'First result `value`'); +assert.sameValue(result.done, false, 'First result `done` flag'); + +result = iter.next(); +assert.sameValue(result.value, undefined, 'Second result `value`'); +assert.sameValue(result.done, true, 'Second result `done` flag'); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-spread-arr-multiple.js b/js/src/tests/test262/language/statements/generators/yield-spread-arr-multiple.js new file mode 100644 index 0000000000..25a835d11e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-spread-arr-multiple.js @@ -0,0 +1,44 @@ +// This file was procedurally generated from the following sources: +// - src/generators/yield-spread-arr-multiple.case +// - src/generators/default/declaration.template +/*--- +description: Use yield value in a array spread position (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +includes: [compareArray.js] +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + Array Initializer + + SpreadElement[Yield, Await]: + ...AssignmentExpression[+In, ?Yield, ?Await] + +---*/ +var arr = ['a', 'b', 'c']; +var item; + +var callCount = 0; + +function *gen() { + callCount += 1; + yield [...yield yield]; +} + +var iter = gen(); + +iter.next(false); +item = iter.next(['a', 'b', 'c']); +item = iter.next(item.value); + +assert.compareArray(item.value, arr); +assert.sameValue(item.done, false); + +assert.sameValue(callCount, 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-spread-arr-single.js b/js/src/tests/test262/language/statements/generators/yield-spread-arr-single.js new file mode 100644 index 0000000000..1390c8fff1 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-spread-arr-single.js @@ -0,0 +1,46 @@ +// This file was procedurally generated from the following sources: +// - src/generators/yield-spread-arr-single.case +// - src/generators/default/declaration.template +/*--- +description: Use yield value in a array spread position (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [generators] +flags: [generated] +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + Array Initializer + + SpreadElement[Yield, Await]: + ...AssignmentExpression[+In, ?Yield, ?Await] +---*/ +var arr = ['a', 'b', 'c']; + +var callCount = 0; + +function *gen() { + callCount += 1; + yield [...yield]; +} + +var iter = gen(); + +iter.next(false); +var item = iter.next(arr); +var value = item.value; + +assert.notSameValue(value, arr, 'value is a new array'); +assert(Array.isArray(value), 'value is an Array exotic object'); +assert.sameValue(value.length, 3) +assert.sameValue(value[0], 'a'); +assert.sameValue(value[1], 'b'); +assert.sameValue(value[2], 'c'); +assert.sameValue(item.done, false); + +assert.sameValue(callCount, 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-spread-obj.js b/js/src/tests/test262/language/statements/generators/yield-spread-obj.js new file mode 100644 index 0000000000..d6c728a2a7 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-spread-obj.js @@ -0,0 +1,49 @@ +// This file was procedurally generated from the following sources: +// - src/generators/yield-spread-obj.case +// - src/generators/default/declaration.template +/*--- +description: Use yield value in a object spread position (Generator Function declaration) +esid: prod-GeneratorDeclaration +features: [object-spread, generators] +flags: [generated] +info: | + 14.4 Generator Function Definitions + + GeneratorDeclaration : + function * BindingIdentifier ( FormalParameters ) { GeneratorBody } + + + Spread Properties + + PropertyDefinition[Yield]: + (...) + ...AssignmentExpression[In, ?Yield] + +---*/ + +var callCount = 0; + +function *gen() { + callCount += 1; + yield { + ...yield, + y: 1, + ...yield yield, + }; +} + +var iter = gen(); + +iter.next(); +iter.next({ x: 42 }); +iter.next({ x: 'lol' }); +var item = iter.next({ y: 39 }); + +assert.sameValue(item.value.x, 42); +assert.sameValue(item.value.y, 39); +assert.sameValue(Object.keys(item.value).length, 2); +assert.sameValue(item.done, false); + +assert.sameValue(callCount, 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-star-after-newline.js b/js/src/tests/test262/language/statements/generators/yield-star-after-newline.js new file mode 100644 index 0000000000..74ad568b7f --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-star-after-newline.js @@ -0,0 +1,20 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + A newline may not precede the `*` token in a `yield` expression. +es6id: 14.4 +negative: + phase: parse + type: SyntaxError +features: [generators] +---*/ + +$DONOTEVALUATE(); + +function* g() { + yield + * 1 +} diff --git a/js/src/tests/test262/language/statements/generators/yield-star-before-newline.js b/js/src/tests/test262/language/statements/generators/yield-star-before-newline.js new file mode 100644 index 0000000000..1cd8fa188e --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-star-before-newline.js @@ -0,0 +1,22 @@ +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + The right-hand side of a `yield *` expression may appear on a new line. +es6id: 14.4 +features: [generators] +---*/ + +var result; +function* g() { + yield * + g2(); +} +function* g2() {} + +result = g().next(); +assert.sameValue(result.value, undefined); +assert.sameValue(result.done, true); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/generators/yield-weak-binding.js b/js/src/tests/test262/language/statements/generators/yield-weak-binding.js new file mode 100644 index 0000000000..457290d102 --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/yield-weak-binding.js @@ -0,0 +1,17 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2013 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: > + `yield` expressions bind weakly +es6id: 14.4 +negative: + phase: parse + type: SyntaxError +features: [generators] +---*/ + +$DONOTEVALUATE(); + +function* g() { yield 3 + yield 4; } |