// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-rest-id-exhausted.case // - src/dstr-binding/default/gen-func-decl.template /*--- description: RestElement applied to an exhausted iterator (generator function declaration) esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject features: [Symbol.iterator, 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 BindingRestElement : ... BindingIdentifier 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier, environment). 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat, [...] b. If iteratorRecord.[[done]] is true, then i. If environment is undefined, return PutValue(lhs, A). ii. Return InitializeReferencedBinding(lhs, A). ---*/ var callCount = 0; function* f([, , ...x]) { assert(Array.isArray(x)); assert.sameValue(x.length, 0); callCount = callCount + 1; }; f([1, 2]).next(); assert.sameValue(callCount, 1, 'generator function invoked exactly once'); reportCompare(0, 0);