// This file was procedurally generated from the following sources: // - src/dstr-binding/ary-init-iter-no-close.case // - src/dstr-binding/default/func-decl.template /*--- description: Iterator is not closed when exhausted by pattern evaluation (function declaration) esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject features: [Symbol.iterator, destructuring-binding] flags: [generated] info: | FunctionDeclaration : function BindingIdentifier ( FormalParameters ) { FunctionBody } [...] 3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody, 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. [...] 13.3.3.5 Runtime Semantics: BindingInitialization BindingPattern : ArrayBindingPattern [...] 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator, result). [...] ---*/ var doneCallCount = 0; var iter = {}; iter[Symbol.iterator] = function() { return { next: function() { return { value: null, done: true }; }, return: function() { doneCallCount += 1; return {}; } }; }; var callCount = 0; function f([x]) { assert.sameValue(doneCallCount, 0); callCount = callCount + 1; }; f(iter); assert.sameValue(callCount, 1, 'function invoked exactly once'); reportCompare(0, 0);