// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case // - src/dstr-binding/default/gen-func-decl.template /*--- description: SingleNameBinding assigns name to "anonymous" generator functions (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 SingleNameBinding : BindingIdentifier Initializeropt [...] 6. If Initializer is present and v is undefined, then a. Let defaultValue be the result of evaluating Initializer. b. Let v be GetValue(defaultValue). c. ReturnIfAbrupt(v). d. If IsAnonymousFunctionDefinition(Initializer) is true, then [...] 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v). ---*/ var callCount = 0; function* f([gen = function* () {}, xGen = function* x() {}]) { assert.sameValue(gen.name, 'gen'); assert.notSameValue(xGen.name, 'xGen'); callCount = callCount + 1; }; f([]).next(); assert.sameValue(callCount, 1, 'generator function invoked exactly once'); reportCompare(0, 0);