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Diffstat (limited to 'js/src/tests/test262/language/expressions/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js')
-rw-r--r-- | js/src/tests/test262/language/expressions/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js b/js/src/tests/test262/language/expressions/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js new file mode 100644 index 0000000000..a2311af339 --- /dev/null +++ b/js/src/tests/test262/language/expressions/generators/dstr/dflt-ary-ptrn-elem-ary-elision-iter.js @@ -0,0 +1,69 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case +// - src/dstr-binding/default/gen-func-expr-dflt.template +/*--- +description: BindingElement with array binding pattern and initializer is not used (generator function expression (default parameter)) +esid: sec-generator-function-definitions-runtime-semantics-evaluation +features: [generators, destructuring-binding, default-parameters] +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 + + 1. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + [...] + e. Else, + i. Let v be IteratorValue(next). + [...] + 4. Return the result of performing BindingInitialization of BindingPattern + with v and environment as the arguments. + +---*/ +var callCount = 0; +function* g() { + callCount += 1; +}; + +var callCount = 0; +var f; +f = function*([[,] = g()] = [[]]) { + assert.sameValue(callCount, 0); + callCount = callCount + 1; +}; + +f().next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); + +reportCompare(0, 0); |