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Diffstat (limited to 'test/language/statements/generators/dstr-ary-ptrn-elem-id-iter-val.js')
-rw-r--r-- | test/language/statements/generators/dstr-ary-ptrn-elem-id-iter-val.js | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/test/language/statements/generators/dstr-ary-ptrn-elem-id-iter-val.js b/test/language/statements/generators/dstr-ary-ptrn-elem-id-iter-val.js new file mode 100644 index 000000000..1e9303ce4 --- /dev/null +++ b/test/language/statements/generators/dstr-ary-ptrn-elem-id-iter-val.js @@ -0,0 +1,70 @@ +// This file was procedurally generated from the following sources: +// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case +// - src/dstr-binding/default/gen-func-decl.template +/*--- +description: SingleNameBinding when value iteration was completed previously (generator function declaration) +esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject +es6id: 14.4.12 +features: [destructuring-binding] +flags: [generated] +info: | + GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody } + + [...] + 2. Let F be GeneratorFunctionCreate(Normal, FormalParameters, + GeneratorBody, scope, strict). + [...] + + 9.2.1 [[Call]] ( thisArgument, argumentsList) + + [...] + 7. Let result be OrdinaryCallEvaluateBody(F, argumentsList). + [...] + + 9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList ) + + 1. Let status be FunctionDeclarationInstantiation(F, argumentsList). + [...] + + 9.2.12 FunctionDeclarationInstantiation(func, argumentsList) + + [...] + 23. Let iteratorRecord be Record {[[iterator]]: + CreateListIterator(argumentsList), [[done]]: false}. + 24. If hasDuplicates is true, then + [...] + 25. Else, + b. Let formalStatus be IteratorBindingInitialization for formals with + iteratorRecord and env as arguments. + [...] + + 13.3.3.6 Runtime Semantics: IteratorBindingInitialization + + SingleNameBinding : BindingIdentifier Initializeropt + + [...] + 4. If iteratorRecord.[[done]] is false, then + a. Let next be IteratorStep(iteratorRecord.[[iterator]]). + b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. + c. ReturnIfAbrupt(next). + d. If next is false, set iteratorRecord.[[done]] to true. + e. Else, + [...] + i. Let v be IteratorValue(next). + ii. If v is an abrupt completion, set + iteratorRecord.[[done]] to true. + iii. ReturnIfAbrupt(v). + 5. If iteratorRecord.[[done]] is true, let v be undefined. + [...] + 8. Return InitializeReferencedBinding(lhs, v). +---*/ + +var callCount = 0; +function* f([x, y, z]) { + assert.sameValue(x, 1); + assert.sameValue(y, 2); + assert.sameValue(z, 3); + callCount = callCount + 1; +}; +f([1, 2, 3]).next(); +assert.sameValue(callCount, 1, 'generator function invoked exactly once'); |