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Diffstat (limited to 'js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js')
-rw-r--r-- | js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js new file mode 100644 index 0000000000..a8275eeadc --- /dev/null +++ b/js/src/tests/test262/language/statements/generators/dstr/ary-ptrn-elem-ary-rest-init.js @@ -0,0 +1,67 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: BindingElement with array binding pattern and initializer is used (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ +var values = [2, 1, 3]; + +var callCount = 0; +function* f([[...x] = values]) { + assert(Array.isArray(x)); + assert.sameValue(x[0], 2); + assert.sameValue(x[1], 1); + assert.sameValue(x[2], 3); + assert.sameValue(x.length, 3); + assert.notSameValue(x, values); + callCount = callCount + 1; +}; +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); |