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Diffstat (limited to 'js/src/tests/test262/language/expressions/generators/dstr/ary-ptrn-elem-obj-id-init.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/generators/dstr/ary-ptrn-elem-obj-id-init.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/generators/dstr/ary-ptrn-elem-obj-id-init.js b/js/src/tests/test262/language/expressions/generators/dstr/ary-ptrn-elem-obj-id-init.js new file mode 100644 index 0000000000..f021625b24 --- /dev/null +++ b/js/src/tests/test262/language/expressions/generators/dstr/ary-ptrn-elem-obj-id-init.js @@ -0,0 +1,65 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case +// - src/dstr-binding/default/gen-func-expr.template +/*--- +description: BindingElement with object binding pattern and initializer is used (generator function expression) +esid: sec-generator-function-definitions-runtime-semantics-evaluation +features: [generators, destructuring-binding] +flags: [generated] +info: | + GeneratorExpression : function * ( FormalParameters ) { GeneratorBody } + + [...] + 3. Let closure be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + BindingElement : BindingPatternInitializer opt + + [...] + 2. If iteratorRecord.[[done]] is true, let v be undefined. + 3. If Initializer is present and v is undefined, then + a. Let defaultValue be the result of evaluating Initializer. + b. Let v be ? GetValue(defaultValue). + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. +---*/ + +var callCount = 0; +var f; +f = function*([{ x, y, z } = { x: 44, y: 55, z: 66 }]) { + assert.sameValue(x, 44); + assert.sameValue(y, 55); + assert.sameValue(z, 66); + callCount = callCount + 1; +}; + +f([]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); |