diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/async-function')
82 files changed, 2584 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-function/array-destructuring-param-strict-body.js b/js/src/tests/test262/language/statements/async-function/array-destructuring-param-strict-body.js new file mode 100644 index 0000000000..d2eda62d6d --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/array-destructuring-param-strict-body.js @@ -0,0 +1,110 @@ +// |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/async-func-decl.template +/*--- +description: ArrayBindingPattern and Use Strict Directive are not allowed to coexist for the same function. (async function declaration) +esid: sec-async-function-definitions +features: [rest-parameters, async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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. + +---*/ +$DONOTEVALUATE(); + + +async function f([element]) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/async-function/await-as-binding-identifier-escaped.js b/js/src/tests/test262/language/statements/async-function/await-as-binding-identifier-escaped.js new file mode 100644 index 0000000000..433fa550eb --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/await-as-binding-identifier-escaped.js @@ -0,0 +1,31 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/async-functions/await-as-binding-identifier-escaped.case +// - src/async-functions/syntax/async-declaration.template +/*--- +description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + BindingIdentifier : Identifier + + It is a Syntax Error if this production has a [Await] parameter and + StringValue of Identifier is "await". + +---*/ +$DONOTEVALUATE(); + + +async function asyncFn() { + var \u0061wait; +} diff --git a/js/src/tests/test262/language/statements/async-function/await-as-binding-identifier.js b/js/src/tests/test262/language/statements/async-function/await-as-binding-identifier.js new file mode 100644 index 0000000000..4705212167 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/await-as-binding-identifier.js @@ -0,0 +1,31 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/async-functions/await-as-binding-identifier.case +// - src/async-functions/syntax/async-declaration.template +/*--- +description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + BindingIdentifier : Identifier + + It is a Syntax Error if this production has a [Await] parameter and + StringValue of Identifier is "await". + +---*/ +$DONOTEVALUATE(); + + +async function asyncFn() { + var await; +} diff --git a/js/src/tests/test262/language/statements/async-function/await-as-identifier-reference-escaped.js b/js/src/tests/test262/language/statements/async-function/await-as-identifier-reference-escaped.js new file mode 100644 index 0000000000..a88596ad99 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/await-as-identifier-reference-escaped.js @@ -0,0 +1,31 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/async-functions/await-as-identifier-reference-escaped.case +// - src/async-functions/syntax/async-declaration.template +/*--- +description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + IdentifierReference : Identifier + + It is a Syntax Error if this production has a [Await] parameter and + StringValue of Identifier is "await". + +---*/ +$DONOTEVALUATE(); + + +async function asyncFn() { + void \u0061wait; +} diff --git a/js/src/tests/test262/language/statements/async-function/await-as-identifier-reference.js b/js/src/tests/test262/language/statements/async-function/await-as-identifier-reference.js new file mode 100644 index 0000000000..fe4155f679 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/await-as-identifier-reference.js @@ -0,0 +1,31 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/async-functions/await-as-identifier-reference.case +// - src/async-functions/syntax/async-declaration.template +/*--- +description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + IdentifierReference : Identifier + + It is a Syntax Error if this production has a [Await] parameter and + StringValue of Identifier is "await". + +---*/ +$DONOTEVALUATE(); + + +async function asyncFn() { + void await; +} diff --git a/js/src/tests/test262/language/statements/async-function/await-as-label-identifier-escaped.js b/js/src/tests/test262/language/statements/async-function/await-as-label-identifier-escaped.js new file mode 100644 index 0000000000..37bfe0f0fb --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/await-as-label-identifier-escaped.js @@ -0,0 +1,31 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/async-functions/await-as-label-identifier-escaped.case +// - src/async-functions/syntax/async-declaration.template +/*--- +description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + LabelIdentifier : Identifier + + It is a Syntax Error if this production has a [Await] parameter and + StringValue of Identifier is "await". + +---*/ +$DONOTEVALUATE(); + + +async function asyncFn() { + \u0061wait: ; +} diff --git a/js/src/tests/test262/language/statements/async-function/await-as-label-identifier.js b/js/src/tests/test262/language/statements/async-function/await-as-label-identifier.js new file mode 100644 index 0000000000..050a0747e6 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/await-as-label-identifier.js @@ -0,0 +1,31 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/async-functions/await-as-label-identifier.case +// - src/async-functions/syntax/async-declaration.template +/*--- +description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + LabelIdentifier : Identifier + + It is a Syntax Error if this production has a [Await] parameter and + StringValue of Identifier is "await". + +---*/ +$DONOTEVALUATE(); + + +async function asyncFn() { + await: ; +} diff --git a/js/src/tests/test262/language/statements/async-function/browser.js b/js/src/tests/test262/language/statements/async-function/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/browser.js diff --git a/js/src/tests/test262/language/statements/async-function/cptn-decl.js b/js/src/tests/test262/language/statements/async-function/cptn-decl.js new file mode 100644 index 0000000000..31cf99ab11 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/cptn-decl.js @@ -0,0 +1,15 @@ +// Copyright (C) 2017 Apple Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-async-function-definitions-runtime-semantics-evaluation +description: Async function declaration completion value is empty. +info: | + AsyncFunctionDeclaration : async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + 1. Return NormalCompletion(empty). +---*/ + +assert.sameValue(eval('async function f() {}'), undefined); +assert.sameValue(eval('1; async function f() {}'), 1); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/async-function/declaration-returns-promise.js b/js/src/tests/test262/language/statements/async-function/declaration-returns-promise.js new file mode 100644 index 0000000000..5cbd29e2a9 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/declaration-returns-promise.js @@ -0,0 +1,15 @@ +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + Async functions return promises +---*/ + +async function foo() { }; +var p = foo(); +assert(p instanceof Promise, "async functions return promise instances"); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-abrupt.js b/js/src/tests/test262/language/statements/async-function/dflt-params-abrupt.js new file mode 100644 index 0000000000..fd2a6705ae --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-abrupt.js @@ -0,0 +1,43 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-abrupt.case +// - src/function-forms/error/async-func-decl.template +/*--- +description: Abrupt completion returned by evaluation of initializer (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async function f(_ = (function() { throw new Test262Error(); }())) { + + callCount = callCount + 1; +} + +f() + .then(_ => { + throw new Test262Error('function should not be resolved'); + }, error => assert.sameValue(error.constructor, Test262Error)) + .then(() => { + assert.sameValue(callCount, 0, 'function body is not evaluated'); + }, $DONE) + .then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-arg-val-not-undefined.js b/js/src/tests/test262/language/statements/async-function/dflt-params-arg-val-not-undefined.js new file mode 100644 index 0000000000..7636e6752a --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-arg-val-not-undefined.js @@ -0,0 +1,63 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-arg-val-not-undefined.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: Use of initializer when argument value is not `undefined` (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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 +async 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).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); + +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'); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-arg-val-undefined.js b/js/src/tests/test262/language/statements/async-function/dflt-params-arg-val-undefined.js new file mode 100644 index 0000000000..1e993209ea --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-arg-val-undefined.js @@ -0,0 +1,46 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-arg-val-undefined.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: Use of initializer when argument value is `undefined` (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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 +async 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).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-duplicates.js b/js/src/tests/test262/language/statements/async-function/dflt-params-duplicates.js new file mode 100644 index 0000000000..2ea2494afb --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-duplicates.js @@ -0,0 +1,39 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-duplicates.case +// - src/function-forms/syntax/async-func-decl.template +/*--- +description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 14.1.2 Static Semantics: Early Errors + + StrictFormalParameters : FormalParameters + + - It is a Syntax Error if BoundNames of FormalParameters contains any + duplicate elements. + + FormalParameters : FormalParameterList + + - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is + false and BoundNames of FormalParameterList contains any duplicate + elements. + +---*/ +$DONOTEVALUATE(); + + +async function f(x = 0, x) { + +} diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-ref-later.js b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-later.js new file mode 100644 index 0000000000..5ae817357f --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-later.js @@ -0,0 +1,44 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-ref-later.case +// - src/function-forms/error/async-func-decl.template +/*--- +description: Referencing a parameter that occurs later in the ParameterList (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async function f(x = y, y) { + + callCount = callCount + 1; +} + +f() + .then(_ => { + throw new Test262Error('function should not be resolved'); + }, error => assert.sameValue(error.constructor, ReferenceError)) + .then(() => { + assert.sameValue(callCount, 0, 'function body is not evaluated'); + }, $DONE) + .then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-ref-prior.js b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-prior.js new file mode 100644 index 0000000000..2e4a12da71 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-prior.js @@ -0,0 +1,43 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-ref-prior.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: Referencing a parameter that occurs earlier in the ParameterList (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 14.1.19 Runtime Semantics: IteratorBindingInitialization + + FormalsList : FormalsList , FormalParameter + + 1. Let status be the result of performing IteratorBindingInitialization for + FormalsList using iteratorRecord and environment as the arguments. + 2. ReturnIfAbrupt(status). + 3. Return the result of performing IteratorBindingInitialization for + FormalParameter using iteratorRecord and environment as the arguments. + +---*/ +var x = 0; + + +var callCount = 0; + +// Stores a reference `ref` for case evaluation +async function ref(x, y = x, z = y) { + assert.sameValue(x, 3, 'first argument value'); + assert.sameValue(y, 3, 'second argument value'); + assert.sameValue(z, 3, 'third argument value'); + callCount = callCount + 1; +} + +ref(3).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-ref-self.js b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-self.js new file mode 100644 index 0000000000..37786435e7 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-self.js @@ -0,0 +1,44 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-ref-self.case +// - src/function-forms/error/async-func-decl.template +/*--- +description: Referencing a parameter from within its own initializer (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async function f(x = x) { + + callCount = callCount + 1; +} + +f() + .then(_ => { + throw new Test262Error('function should not be resolved'); + }, error => assert.sameValue(error.constructor, ReferenceError)) + .then(() => { + assert.sameValue(callCount, 0, 'function body is not evaluated'); + }, $DONE) + .then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-rest.js b/js/src/tests/test262/language/statements/async-function/dflt-params-rest.js new file mode 100644 index 0000000000..5e8a1926b4 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-rest.js @@ -0,0 +1,43 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-rest.case +// - src/function-forms/syntax/async-func-decl.template +/*--- +description: RestParameter does not support an initializer (async function declaration) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 14.1 Function Definitions + + Syntax + + FunctionRestParameter[Yield] : + + BindingRestElement[?Yield] + + 13.3.3 Destructuring Binding Patterns + + Syntax + + BindingRestElement[Yield] : + + ...BindingIdentifier[?Yield] + ...BindingPattern[?Yield] + +---*/ +$DONOTEVALUATE(); + + +async function f(...x = []) { + +} diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-trailing-comma.js b/js/src/tests/test262/language/statements/async-function/dflt-params-trailing-comma.js new file mode 100644 index 0000000000..2a8141f351 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/dflt-params-trailing-comma.js @@ -0,0 +1,38 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/dflt-params-trailing-comma.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using default parameters (async function declaration) +esid: sec-async-function-definitions +features: [async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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 +async function ref(a, b = 39,) { + assert.sameValue(a, 42); + assert.sameValue(b, 39); + callCount = callCount + 1; +} + +ref(42, undefined, 1).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); + +assert.sameValue(ref.length, 1, 'length is properly set'); diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-NSPL-with-USD.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-NSPL-with-USD.js new file mode 100644 index 0000000000..324d132e16 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-NSPL-with-USD.js @@ -0,0 +1,17 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + It is a Syntax Error if ContainsUseStrict of AsyncConciseBody is *true* and IsSimpleParameterList of ArrowParameters is *false*. +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function foo(x = 1){"use strict"} diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-arguments-in-formal-parameters-strict.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-arguments-in-formal-parameters-strict.js new file mode 100644 index 0000000000..58c95919b1 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-arguments-in-formal-parameters-strict.js @@ -0,0 +1,19 @@ +// |reftest| error:SyntaxError +'use strict'; +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a SyntaxError if FormalParameters contains arguments in strict mode +negative: + phase: parse + type: SyntaxError +flags: [onlyStrict] +---*/ + +$DONOTEVALUATE(); + +async function foo (arguments) { } + diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-await-in-formals-default.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-await-in-formals-default.js new file mode 100644 index 0000000000..927d1d111f --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-await-in-formals-default.js @@ -0,0 +1,15 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a SyntaxError if FormalParameters' default expressions contains await +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); +async function foo (x = await) { } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-await-in-formals.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-await-in-formals.js new file mode 100644 index 0000000000..ac072a3ae3 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-await-in-formals.js @@ -0,0 +1,15 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a SyntaxError if FormalParameters contains await +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); +async function foo (await) { } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-binding-identifier-arguments-strict.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-binding-identifier-arguments-strict.js new file mode 100644 index 0000000000..00728103fb --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-binding-identifier-arguments-strict.js @@ -0,0 +1,19 @@ +// |reftest| error:SyntaxError +'use strict'; +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + If the source code matching this production is strict code, it is a Syntax Error if BindingIdentifier is the IdentifierName arguments. +negative: + phase: parse + type: SyntaxError +flags: [onlyStrict] +---*/ + +$DONOTEVALUATE(); +async function arguments () { } + diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-binding-identifier-eval-strict.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-binding-identifier-eval-strict.js new file mode 100644 index 0000000000..247169a87d --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-binding-identifier-eval-strict.js @@ -0,0 +1,18 @@ +// |reftest| error:SyntaxError +'use strict'; +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + If the source code matching this production is strict code, it is a Syntax Error if BindingIdentifier is the IdentifierName eval. +negative: + phase: parse + type: SyntaxError +flags: [onlyStrict] +---*/ + +$DONOTEVALUATE(); +async function eval () { } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-body-contains-super-call.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-body-contains-super-call.js new file mode 100644 index 0000000000..ed401145f4 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-body-contains-super-call.js @@ -0,0 +1,16 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a syntax error if AsyncFunctionBody contains SuperCall is true +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function foo (foo) { super() }; diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-body-contains-super-property.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-body-contains-super-property.js new file mode 100644 index 0000000000..0c451621e7 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-body-contains-super-property.js @@ -0,0 +1,16 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a syntax error if AsyncFunctionBody contains SuperProperty is true +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function foo (foo) { super.prop }; diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-duplicate-parameters-strict.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-duplicate-parameters-strict.js new file mode 100644 index 0000000000..afec6627ec --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-duplicate-parameters-strict.js @@ -0,0 +1,19 @@ +// |reftest| error:SyntaxError +'use strict'; +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + If strict mode, early error rules for StrictFormalParameters are applied +negative: + phase: parse + type: SyntaxError +flags: [onlyStrict] +---*/ + +$DONOTEVALUATE(); + +async function foo(a, a) { } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-eval-in-formal-parameters-strict.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-eval-in-formal-parameters-strict.js new file mode 100644 index 0000000000..46463fdcbe --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-eval-in-formal-parameters-strict.js @@ -0,0 +1,18 @@ +// |reftest| error:SyntaxError +'use strict'; +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a SyntaxError if FormalParameters contains eval in strict mode +negative: + phase: parse + type: SyntaxError +flags: [onlyStrict] +---*/ + +$DONOTEVALUATE(); + +async function foo (eval) { } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-body-duplicate.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-body-duplicate.js new file mode 100644 index 0000000000..b1eac325e4 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-body-duplicate.js @@ -0,0 +1,16 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a SyntaxError if BoundNames of FormalParameters also occurs in the LexicallyDeclaredNames of AsyncFunctionBody +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function foo (bar) { let bar; } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-contains-super-call.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-contains-super-call.js new file mode 100644 index 0000000000..c1932d8ed9 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-contains-super-call.js @@ -0,0 +1,16 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a syntax error if FormalParameters contains SuperCall is true +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function foo (foo = super()) { let bar; } diff --git a/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-contains-super-property.js b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-contains-super-property.js new file mode 100644 index 0000000000..5e7e301b79 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/early-errors-declaration-formals-contains-super-property.js @@ -0,0 +1,16 @@ +// |reftest| error:SyntaxError +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: It is a syntax error if FormalParameters contains SuperCall is true +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function foo (foo = super.foo) { let bar; } diff --git a/js/src/tests/test262/language/statements/async-function/escaped-async.js b/js/src/tests/test262/language/statements/async-function/escaped-async.js new file mode 100644 index 0000000000..2a0502aff1 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/escaped-async.js @@ -0,0 +1,25 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2017 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-grammar-notation +description: > + The `async` contextual keyword must not contain Unicode escape sequences. +info: | + Terminal symbols are shown + in fixed width font, both in the productions of the grammars and throughout this + specification whenever the text directly refers to such a terminal symbol. These + are to appear in a script exactly as written. All terminal symbol code points + specified in this way are to be understood as the appropriate Unicode code points + from the Basic Latin range, as opposed to any similar-looking code points from + other Unicode ranges. +negative: + phase: parse + type: SyntaxError +features: [async-functions] +---*/ + +$DONOTEVALUATE(); + +\u0061sync function f(){} diff --git a/js/src/tests/test262/language/statements/async-function/eval-var-scope-syntax-err.js b/js/src/tests/test262/language/statements/async-function/eval-var-scope-syntax-err.js new file mode 100644 index 0000000000..5e797937a7 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/eval-var-scope-syntax-err.js @@ -0,0 +1,39 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/eval-var-scope-syntax-err.case +// - src/function-forms/error-no-strict/async-func-decl.template +/*--- +description: sloppy direct eval in params introduces var (async function declaration in sloppy code) +esid: sec-async-function-definitions +features: [default-parameters, async-functions] +flags: [generated, async, noStrict] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + + Runtime Semantics: IteratorBindingInitialization + FormalParameter : BindingElement + + 1. Return the result of performing IteratorBindingInitialization for BindingElement with arguments iteratorRecord and environment. + +---*/ + + +var callCount = 0; +async function f(a = eval("var a = 42")) { + + callCount = callCount + 1; +} + +f() + .then(_ => { + throw new Test262Error('function should not be resolved'); + }, error => assert.sameValue(error.constructor, SyntaxError)) + .then(() => { + assert.sameValue(callCount, 0, 'function body is not evaluated'); + }, $DONE) + .then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-body-that-returns-after-await.js b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-returns-after-await.js new file mode 100644 index 0000000000..f89a24d7a8 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-returns-after-await.js @@ -0,0 +1,22 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + The return value of the async function resolves the promise +flags: [async] +---*/ + +async function foo() { + await Promise.resolve(); + return 42; +} + +foo().then(function (v) { + assert.sameValue(v, 42); + $DONE(); +}, $DONE); + diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-body-that-returns.js b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-returns.js new file mode 100644 index 0000000000..6d57a3b973 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-returns.js @@ -0,0 +1,20 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + The return value of the async function resolves the promise +flags: [async] +---*/ + +async function foo() { + return 42; +} + +foo().then(function (v) { + assert.sameValue(v, 42); + $DONE(); +}, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-body-that-throws-after-await.js b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-throws-after-await.js new file mode 100644 index 0000000000..c2a0e758bf --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-throws-after-await.js @@ -0,0 +1,25 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + Errors thrown from the async function body reject the returned promise +flags: [async] +---*/ + +async function foo() { + await Promise.resolve(); + throw 1; +} + +foo().then(function () { + $DONE("Should not be called"); +}, function (e) { + assert.sameValue(e, 1); + $DONE(); +}); + + diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-body-that-throws.js b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-throws.js new file mode 100644 index 0000000000..3bde4aedff --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-body-that-throws.js @@ -0,0 +1,23 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + Errors thrown from the async function body reject the returned promise +flags: [async] +---*/ + +async function foo() { + throw 1; +} + +foo().then(function () { + $DONE("Should not be called"); +}, function (e) { + assert.sameValue(e, 1); + $DONE(); +}); + diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-body.js b/js/src/tests/test262/language/statements/async-function/evaluation-body.js new file mode 100644 index 0000000000..80935ed9b6 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-body.js @@ -0,0 +1,20 @@ +// copyright 2016 microsoft, inc. all rights reserved. +// this code is governed by the bsd license found in the license file. + +/*--- +author: brian terlson <brian.terlson@microsoft.com> +esid: pending +description: > + async function bodies are executed immediately (unlike generators) +---*/ + +let called; +async function foo() { + called = true; + await new Promise(); +} + +foo(); +assert(called); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-default-that-throws.js b/js/src/tests/test262/language/statements/async-function/evaluation-default-that-throws.js new file mode 100644 index 0000000000..6e7afb4cce --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-default-that-throws.js @@ -0,0 +1,21 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + If a default expression throws, the promise is rejected. +info: | + This is different from generators which will throw the error out of the generator + when it is called. +flags: [async] +---*/ +var y = null; +async function foo(x = y()) {} +foo().then(function () { + $DONE('promise should be rejected'); +}, function () { + $DONE(); +}); diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-mapped-arguments.js b/js/src/tests/test262/language/statements/async-function/evaluation-mapped-arguments.js new file mode 100644 index 0000000000..62f9ba958e --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-mapped-arguments.js @@ -0,0 +1,23 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + Mapped arguments object is used when the async function has a + simple parameter list. +flags: [noStrict, async] +---*/ + + +async function foo(a) { + arguments[0] = 2; + assert.sameValue(a, 2); + + a = 3; + assert.sameValue(arguments[0], 3); +} + +foo(1).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-this-value-global.js b/js/src/tests/test262/language/statements/async-function/evaluation-this-value-global.js new file mode 100644 index 0000000000..75f9f331b8 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-this-value-global.js @@ -0,0 +1,19 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + The this value is set to the global object when not passed in sloppy mode. +flags: [noStrict, async] +includes: [asyncHelpers.js] +---*/ + +var glob = this; +async function foo() { + assert.sameValue(this, glob); +} + +asyncTest(foo); diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-this-value-passed.js b/js/src/tests/test262/language/statements/async-function/evaluation-this-value-passed.js new file mode 100644 index 0000000000..ac6bb9f99f --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-this-value-passed.js @@ -0,0 +1,19 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + The this value from the caller is present in the async function body +flags: [async] +---*/ + + +async function foo(a) { + assert.sameValue(this, a) +} +var obj = {}; +foo.call(obj, obj).then($DONE, $DONE); + diff --git a/js/src/tests/test262/language/statements/async-function/evaluation-unmapped-arguments.js b/js/src/tests/test262/language/statements/async-function/evaluation-unmapped-arguments.js new file mode 100644 index 0000000000..1f94e09bb8 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/evaluation-unmapped-arguments.js @@ -0,0 +1,24 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + Unmapped arguments object is used when the async function doesn't have a + simple parameter list. +flags: [async] +---*/ + + +async function foo(a = 42) { + arguments[0] = 2; + assert.sameValue(a, 1); + + a = 3; + assert.sameValue(arguments[0], 2); +} + +foo(1).then($DONE, $DONE); + diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/async-func-decl-forbidden-ext-direct-access-prop-arguments.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/async-func-decl-forbidden-ext-direct-access-prop-arguments.js new file mode 100644 index 0000000000..93513936b1 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/async-func-decl-forbidden-ext-direct-access-prop-arguments.js @@ -0,0 +1,38 @@ +// |reftest| async +// 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/async-func-decl.template +/*--- +description: Forbidden extension, f.arguments (async function declaration) +esid: sec-async-function-definitions +features: [arrow-function, async-functions] +flags: [generated, noStrict, async] +info: | + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async function f() { + assert.sameValue(f.hasOwnProperty("arguments"), false); + callCount++; +} + +f() + .then(() => { + assert.sameValue(callCount, 1, 'function body evaluated'); + }, $DONE).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/async-func-decl-forbidden-ext-direct-access-prop-caller.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/async-func-decl-forbidden-ext-direct-access-prop-caller.js new file mode 100644 index 0000000000..3afd748784 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/async-func-decl-forbidden-ext-direct-access-prop-caller.js @@ -0,0 +1,38 @@ +// |reftest| async +// 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/async-func-decl.template +/*--- +description: Forbidden extension, o.caller (async function declaration) +esid: sec-async-function-definitions +features: [arrow-function, async-functions] +flags: [generated, noStrict, async] +info: | + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async function f() { + assert.sameValue(f.hasOwnProperty("caller"), false); + callCount++; +} + +f() + .then(() => { + assert.sameValue(callCount, 1, 'function body evaluated'); + }, $DONE).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/browser.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/browser.js diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/shell.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b1/shell.js diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js new file mode 100644 index 0000000000..01aa1a889f --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-own-prop-caller-get.js @@ -0,0 +1,64 @@ +// |reftest| async +// 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/async-func-decl.template +/*--- +description: Forbidden extension, o.caller (async function declaration) +esid: sec-async-definitions +features: [arrow-function, async-functions] +flags: [generated, noStrict, async] +info: | + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async 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() + .then(() => { + assert.sameValue(callCount, 1, 'function body evaluated'); + }, $DONE).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js new file mode 100644 index 0000000000..d67e324fad --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-own-prop-caller-value.js @@ -0,0 +1,64 @@ +// |reftest| async +// 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/async-func-decl.template +/*--- +description: Forbidden extension, o.caller (async function declaration) +esid: sec-async-definitions +features: [arrow-function, async-functions] +flags: [generated, noStrict, async] +info: | + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async 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() + .then(() => { + assert.sameValue(callCount, 1, 'function body evaluated'); + }, $DONE).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-prop-caller.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-prop-caller.js new file mode 100644 index 0000000000..c9ce6d0156 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/async-func-decl-forbidden-ext-indirect-access-prop-caller.js @@ -0,0 +1,64 @@ +// |reftest| async +// 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/async-func-decl.template +/*--- +description: Forbidden extension, o.caller (async function declaration) +esid: sec-async-definitions +features: [arrow-function, async-functions] +flags: [generated, noStrict, async] +info: | + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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; +async 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() + .then(() => { + assert.sameValue(callCount, 1, 'function body evaluated'); + }, $DONE).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/browser.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/browser.js diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/shell.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/b2/shell.js diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/browser.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/browser.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/browser.js diff --git a/js/src/tests/test262/language/statements/async-function/forbidden-ext/shell.js b/js/src/tests/test262/language/statements/async-function/forbidden-ext/shell.js new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/forbidden-ext/shell.js diff --git a/js/src/tests/test262/language/statements/async-function/let-newline-await-in-async-function.js b/js/src/tests/test262/language/statements/async-function/let-newline-await-in-async-function.js new file mode 100644 index 0000000000..3f9b97ac42 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/let-newline-await-in-async-function.js @@ -0,0 +1,25 @@ +// |reftest| error:SyntaxError +// Copyright (C) 2017 Mozilla Corporation. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Jeff Walden <jwalden+code@mit.edu> +esid: sec-let-and-const-declarations +description: > + `let await` does not permit ASI in between, as `await` is a BindingIdentifier +info: | + `await` is a perfectly cromulent binding name in any context grammatically, just + prohibited by static semantics in some contexts. Therefore ASI can never apply + between `let` (where a LexicalDeclaration is permitted) and `await`, + so a subsequent `0` where `=` was expected is a syntax error. +negative: + phase: parse + type: SyntaxError +---*/ + +$DONOTEVALUATE(); + +async function f() { + let + await 0; +} diff --git a/js/src/tests/test262/language/statements/async-function/object-destructuring-param-strict-body.js b/js/src/tests/test262/language/statements/async-function/object-destructuring-param-strict-body.js new file mode 100644 index 0000000000..e9129e8b7b --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/object-destructuring-param-strict-body.js @@ -0,0 +1,110 @@ +// |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/async-func-decl.template +/*--- +description: ObjectBindingPattern and Use Strict Directive are not allowed to coexist for the same function. (async function declaration) +esid: sec-async-function-definitions +features: [rest-parameters, async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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. + +---*/ +$DONOTEVALUATE(); + + +async function f({property}) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/async-function/params-trailing-comma-multiple.js b/js/src/tests/test262/language/statements/async-function/params-trailing-comma-multiple.js new file mode 100644 index 0000000000..6c9d696c32 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/params-trailing-comma-multiple.js @@ -0,0 +1,38 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/params-trailing-comma-multiple.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using multiple parameters (async function declaration) +esid: sec-async-function-definitions +features: [async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , +---*/ + + +var callCount = 0; + +// Stores a reference `ref` for case evaluation +async function ref(a, b,) { + assert.sameValue(a, 42); + assert.sameValue(b, 39); + callCount = callCount + 1; +} + +ref(42, 39, 1).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); + +assert.sameValue(ref.length, 2, 'length is properly set'); diff --git a/js/src/tests/test262/language/statements/async-function/params-trailing-comma-single.js b/js/src/tests/test262/language/statements/async-function/params-trailing-comma-single.js new file mode 100644 index 0000000000..5f1b1ee69e --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/params-trailing-comma-single.js @@ -0,0 +1,37 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/params-trailing-comma-single.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: A trailing comma should not increase the respective length, using a single parameter (async function declaration) +esid: sec-async-function-definitions +features: [async-functions] +flags: [generated, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + Trailing comma in the parameters list + + 14.1 Function Definitions + + FormalParameters[Yield, Await] : FormalParameterList[?Yield, ?Await] , +---*/ + + +var callCount = 0; + +// Stores a reference `ref` for case evaluation +async function ref(a,) { + assert.sameValue(a, 42); + callCount = callCount + 1; +} + +ref(42, 39).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); + +assert.sameValue(ref.length, 1, 'length is properly set'); diff --git a/js/src/tests/test262/language/statements/async-function/rest-param-strict-body.js b/js/src/tests/test262/language/statements/async-function/rest-param-strict-body.js new file mode 100644 index 0000000000..b58daec03c --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/rest-param-strict-body.js @@ -0,0 +1,110 @@ +// |reftest| error:SyntaxError +// This file was procedurally generated from the following sources: +// - src/function-forms/rest-param-strict-body.case +// - src/function-forms/syntax/async-func-decl.template +/*--- +description: RestParameter and Use Strict Directive are not allowed to coexist for the same function. (async function declaration) +esid: sec-async-function-definitions +features: [rest-parameters, async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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(); + + +async function f(a,...rest) { + "use strict"; +} diff --git a/js/src/tests/test262/language/statements/async-function/rest-params-trailing-comma-early-error.js b/js/src/tests/test262/language/statements/async-function/rest-params-trailing-comma-early-error.js new file mode 100644 index 0000000000..a4e5b59135 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/rest-params-trailing-comma-early-error.js @@ -0,0 +1,36 @@ +// |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/async-func-decl.template +/*--- +description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (async function declaration) +esid: sec-async-function-definitions +features: [async-functions] +flags: [generated] +negative: + phase: parse + type: SyntaxError +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + 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] +---*/ +$DONOTEVALUATE(); + + +async function f(...a,) { + +} diff --git a/js/src/tests/test262/language/statements/async-function/returns-async-arrow-returns-arguments-from-parent-function.js b/js/src/tests/test262/language/statements/async-function/returns-async-arrow-returns-arguments-from-parent-function.js new file mode 100644 index 0000000000..2643fe8125 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/returns-async-arrow-returns-arguments-from-parent-function.js @@ -0,0 +1,31 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/async-functions/returns-async-arrow-returns-arguments-from-parent-function.case +// - src/async-functions/evaluation/async-declaration.template +/*--- +description: Async function returns an async function. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated, async] +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + +---*/ +let count = 0; + + +async function asyncFn(x) { + let a = arguments; + return async () => a === arguments; +} + +asyncFn().then(retFn => { + count++; + return retFn(); +}).then(result => { + assert.sameValue(result, true); + assert.sameValue(count, 1); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/returns-async-arrow-returns-newtarget.js b/js/src/tests/test262/language/statements/async-function/returns-async-arrow-returns-newtarget.js new file mode 100644 index 0000000000..9b9f18d211 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/returns-async-arrow-returns-newtarget.js @@ -0,0 +1,30 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/async-functions/returns-async-arrow-returns-newtarget.case +// - src/async-functions/evaluation/async-declaration.template +/*--- +description: Async function returns an async function. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated, async] +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + +---*/ +let count = 0; + + +async function asyncFn(x) { + return async () => new.target; +} + +asyncFn().then(retFn => { + count++; + return retFn(); +}).then(result => { + assert.sameValue(result, undefined); + assert.sameValue(count, 1); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/returns-async-arrow.js b/js/src/tests/test262/language/statements/async-function/returns-async-arrow.js new file mode 100644 index 0000000000..d611abfd48 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/returns-async-arrow.js @@ -0,0 +1,30 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/async-functions/returns-async-arrow.case +// - src/async-functions/evaluation/async-declaration.template +/*--- +description: Async function returns an async function. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated, async] +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + +---*/ +let count = 0; + + +async function asyncFn(x) { + return async () => x; +} + +asyncFn(1).then(retFn => { + count++; + return retFn(); +}).then(result => { + assert.sameValue(result, 1); + assert.sameValue(count, 1); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/returns-async-function-returns-arguments-from-own-function.js b/js/src/tests/test262/language/statements/async-function/returns-async-function-returns-arguments-from-own-function.js new file mode 100644 index 0000000000..ec3e021001 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/returns-async-function-returns-arguments-from-own-function.js @@ -0,0 +1,31 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/async-functions/returns-async-function-returns-arguments-from-own-function.case +// - src/async-functions/evaluation/async-declaration.template +/*--- +description: Async function returns an async function. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated, async] +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + +---*/ +let count = 0; + + +async function asyncFn(x) { + let a = arguments; + return async function() { return a === arguments; }; +} + +asyncFn(1).then(retFn => { + count++; + return retFn(); +}).then(result => { + assert.sameValue(result, false); + assert.sameValue(count, 1); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/returns-async-function-returns-newtarget.js b/js/src/tests/test262/language/statements/async-function/returns-async-function-returns-newtarget.js new file mode 100644 index 0000000000..ebcbe36042 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/returns-async-function-returns-newtarget.js @@ -0,0 +1,30 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/async-functions/returns-async-function-returns-newtarget.case +// - src/async-functions/evaluation/async-declaration.template +/*--- +description: Async function returns an async function. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated, async] +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + +---*/ +let count = 0; + + +async function asyncFn(x) { + return async function() { return new.target; }; +} + +asyncFn(1).then(retFn => { + count++; + return retFn(); +}).then(result => { + assert.sameValue(result, undefined); + assert.sameValue(count, 1); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/returns-async-function.js b/js/src/tests/test262/language/statements/async-function/returns-async-function.js new file mode 100644 index 0000000000..c3b973c6bb --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/returns-async-function.js @@ -0,0 +1,30 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/async-functions/returns-async-function.case +// - src/async-functions/evaluation/async-declaration.template +/*--- +description: Async function returns an async function. (Async function declaration) +esid: prod-AsyncFunctionDeclaration +features: [async-functions] +flags: [generated, async] +info: | + Async Function Definitions + + AsyncFunctionDeclaration: + async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + +---*/ +let count = 0; + + +async function asyncFn(x) { + return async function() { return x; }; +} + +asyncFn(1).then(retFn => { + count++; + return retFn(); +}).then(result => { + assert.sameValue(result, 1); + assert.sameValue(count, 1); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/shell.js b/js/src/tests/test262/language/statements/async-function/shell.js new file mode 100644 index 0000000000..ae18ad584d --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/shell.js @@ -0,0 +1,113 @@ +// GENERATED, DO NOT EDIT +// file: asyncHelpers.js +// Copyright (C) 2022 Igalia, S.L. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: | + A collection of assertion and wrapper functions for testing asynchronous built-ins. +defines: [asyncTest] +---*/ + +function asyncTest(testFunc) { + if (!Object.hasOwn(globalThis, "$DONE")) { + throw new Test262Error("asyncTest called without async flag"); + } + if (typeof testFunc !== "function") { + $DONE(new Test262Error("asyncTest called with non-function argument")); + return; + } + try { + testFunc().then( + function () { + $DONE(); + }, + function (error) { + $DONE(error); + } + ); + } catch (syncError) { + $DONE(syncError); + } +} + +assert.throwsAsync = async function (expectedErrorConstructor, func, message) { + var innerThenable; + if (message === undefined) { + message = ""; + } else { + message += " "; + } + if (typeof func === "function") { + try { + innerThenable = func(); + if ( + innerThenable === null || + typeof innerThenable !== "object" || + typeof innerThenable.then !== "function" + ) { + message += + "Expected to obtain an inner promise that would reject with a" + + expectedErrorConstructor.name + + " but result was not a thenable"; + throw new Test262Error(message); + } + } catch (thrown) { + message += + "Expected a " + + expectedErrorConstructor.name + + " to be thrown asynchronously but an exception was thrown synchronously while obtaining the inner promise"; + throw new Test262Error(message); + } + } else { + message += + "assert.throwsAsync called with an argument that is not a function"; + throw new Test262Error(message); + } + + try { + return innerThenable.then( + function () { + message += + "Expected a " + + expectedErrorConstructor.name + + " to be thrown asynchronously but no exception was thrown at all"; + throw new Test262Error(message); + }, + function (thrown) { + var expectedName, actualName; + if (typeof thrown !== "object" || thrown === null) { + message += "Thrown value was not an object!"; + throw new Test262Error(message); + } else if (thrown.constructor !== expectedErrorConstructor) { + expectedName = expectedErrorConstructor.name; + actualName = thrown.constructor.name; + if (expectedName === actualName) { + message += + "Expected a " + + expectedName + + " but got a different error constructor with the same name"; + } else { + message += + "Expected a " + expectedName + " but got a " + actualName; + } + throw new Test262Error(message); + } + } + ); + } catch (thrown) { + if (typeof thrown !== "object" || thrown === null) { + message += + "Expected a " + + expectedErrorConstructor.name + + " to be thrown asynchronously but innerThenable synchronously threw a value that was not an object "; + } else { + message += + "Expected a " + + expectedErrorConstructor.name + + " to be thrown asynchronously but a " + + thrown.constructor.name + + " was thrown synchronously"; + } + throw new Test262Error(message); + } +}; diff --git a/js/src/tests/test262/language/statements/async-function/syntax-declaration-line-terminators-allowed.js b/js/src/tests/test262/language/statements/async-function/syntax-declaration-line-terminators-allowed.js new file mode 100644 index 0000000000..6573d802e0 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/syntax-declaration-line-terminators-allowed.js @@ -0,0 +1,19 @@ +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: > + Declarations allow line breaks after function and after arguments list +---*/ + +async function +foo() +{ + +} + +assert(foo instanceof Function); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/async-function/syntax-declaration-no-line-terminator.js b/js/src/tests/test262/language/statements/async-function/syntax-declaration-no-line-terminator.js new file mode 100644 index 0000000000..586b181800 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/syntax-declaration-no-line-terminator.js @@ -0,0 +1,15 @@ +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: Async function declarations cannot have a line break after `async` +info: Reference error is thrown due to looking up async in strict mode +---*/ +assert.throws(ReferenceError, function() { + async + function foo() {} +}); + +reportCompare(0, 0); diff --git a/js/src/tests/test262/language/statements/async-function/syntax-declaration.js b/js/src/tests/test262/language/statements/async-function/syntax-declaration.js new file mode 100644 index 0000000000..7b409d3007 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/syntax-declaration.js @@ -0,0 +1,16 @@ +// |reftest| async +// Copyright 2016 Microsoft, Inc. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Brian Terlson <brian.terlson@microsoft.com> +esid: pending +description: Async function declaration returns a promise +flags: [async] +---*/ + +async function foo () { } + +foo().then(function() { + $DONE(); +}) diff --git a/js/src/tests/test262/language/statements/async-function/try-reject-finally-reject.js b/js/src/tests/test262/language/statements/async-function/try-reject-finally-reject.js new file mode 100644 index 0000000000..14814d099b --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-reject-finally-reject.js @@ -0,0 +1,28 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer rejecting an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + await new Promise(function(resolve, reject) { + reject("early-reject"); + }); + } finally { + await new Promise(function(resolve, reject) { + reject("override"); + }); + } +} + +f().then($DONE, function(value) { + assert.sameValue(value, "override", "Awaited rejection in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-reject-finally-return.js b/js/src/tests/test262/language/statements/async-function/try-reject-finally-return.js new file mode 100644 index 0000000000..5bf93ea1cf --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-reject-finally-return.js @@ -0,0 +1,26 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer rejecting an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + await new Promise(function(resolve, reject) { + reject("early-reject"); + }); + } finally { + return "override"; + } +} + +f().then(function(value) { + assert.sameValue(value, "override", "Return in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-reject-finally-throw.js b/js/src/tests/test262/language/statements/async-function/try-reject-finally-throw.js new file mode 100644 index 0000000000..8027488be6 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-reject-finally-throw.js @@ -0,0 +1,26 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer rejecting an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + await new Promise(function(resolve, reject) { + reject("early-reject"); + }); + } finally { + throw "override"; + } +} + +f().then($DONE, function(value) { + assert.sameValue(value, "override", "Exception thrown in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-return-finally-reject.js b/js/src/tests/test262/language/statements/async-function/try-return-finally-reject.js new file mode 100644 index 0000000000..0455d3ad71 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-return-finally-reject.js @@ -0,0 +1,26 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer resolving an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + return "early-return"; + } finally { + await new Promise(function(resolve, reject) { + reject("override"); + }); + } +} + +f().then($DONE, function(value) { + assert.sameValue(value, "override", "Awaited rejection in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-return-finally-return.js b/js/src/tests/test262/language/statements/async-function/try-return-finally-return.js new file mode 100644 index 0000000000..eed39ff17b --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-return-finally-return.js @@ -0,0 +1,26 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer resolving an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + return "early-return"; + } finally { + return await new Promise(function(resolve, reject) { + resolve("override"); + }); + } +} + +f().then(function(value) { + assert.sameValue(value, "override", "Return in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-return-finally-throw.js b/js/src/tests/test262/language/statements/async-function/try-return-finally-throw.js new file mode 100644 index 0000000000..aba4c86fe6 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-return-finally-throw.js @@ -0,0 +1,24 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer resolving an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + return "early-return"; + } finally { + throw "override"; + } +} + +f().then($DONE, function(value) { + assert.sameValue(value, "override", "Exception thrown in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-throw-finally-reject.js b/js/src/tests/test262/language/statements/async-function/try-throw-finally-reject.js new file mode 100644 index 0000000000..be2d482b52 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-throw-finally-reject.js @@ -0,0 +1,26 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer rejecting an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + throw "early-throw"; + } finally { + await new Promise(function(resolve, reject) { + reject("override"); + }); + } +} + +f().then($DONE, function(value) { + assert.sameValue(value, "override", "Awaited rejection in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-throw-finally-return.js b/js/src/tests/test262/language/statements/async-function/try-throw-finally-return.js new file mode 100644 index 0000000000..80a8d303db --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-throw-finally-return.js @@ -0,0 +1,26 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer rejecting an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + throw "early-throw"; + } finally { + return await new Promise(function(resolve, reject) { + resolve("override"); + }); + } +} + +f().then(function(value) { + assert.sameValue(value, "override", "Return in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/try-throw-finally-throw.js b/js/src/tests/test262/language/statements/async-function/try-throw-finally-throw.js new file mode 100644 index 0000000000..0ccfe934a1 --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/try-throw-finally-throw.js @@ -0,0 +1,24 @@ +// |reftest| async +// Copyright 2017 Caitlin Potter. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +author: Caitlin Potter <caitp@igalia.com> +esid: pending +description: > + Implementations must defer rejecting an async function's Promise until after + all finally blocks have been evaluated. +flags: [async] +---*/ + +async function f() { + try { + throw "early-throw"; + } finally { + throw "override"; + } +} + +f().then($DONE, function(value) { + assert.sameValue(value, "override", "Exception thrown in finally block"); +}).then($DONE, $DONE); diff --git a/js/src/tests/test262/language/statements/async-function/unscopables-with-in-nested-fn.js b/js/src/tests/test262/language/statements/async-function/unscopables-with-in-nested-fn.js new file mode 100644 index 0000000000..bcec8c672e --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/unscopables-with-in-nested-fn.js @@ -0,0 +1,80 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/unscopables-with-in-nested-fn.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: Symbol.unscopables behavior across scope boundaries (async function declaration) +esid: sec-async-function-definitions +features: [globalThis, Symbol.unscopables, async-functions] +flags: [generated, noStrict, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + ... + 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 +async 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).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); + + count++; +} +assert.sameValue(count, 6, 'The value of `count` is 6'); diff --git a/js/src/tests/test262/language/statements/async-function/unscopables-with.js b/js/src/tests/test262/language/statements/async-function/unscopables-with.js new file mode 100644 index 0000000000..ecdf135c5f --- /dev/null +++ b/js/src/tests/test262/language/statements/async-function/unscopables-with.js @@ -0,0 +1,74 @@ +// |reftest| async +// This file was procedurally generated from the following sources: +// - src/function-forms/unscopables-with.case +// - src/function-forms/default/async-func-decl.template +/*--- +description: Symbol.unscopables behavior across scope boundaries (async function declaration) +esid: sec-async-function-definitions +features: [globalThis, Symbol.unscopables, async-functions] +flags: [generated, noStrict, async] +info: | + 14.6 Async Function Definitions + + AsyncFunctionDeclaration : + async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody } + + + ... + 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 +async 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).then(() => { + assert.sameValue(callCount, 1, 'function invoked exactly once'); +}).then($DONE, $DONE); + + count++; +} +assert.sameValue(count, 6, 'The value of `count` is 6'); |