// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- desc: > IteratorClose is not called when iteration has exhausted the iterator info: | ArrayAssignmentPattern : [ Elision ] 1. Let iterator be GetIterator(value). [...] 5. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, result). [...] features: [Symbol.iterator] template: default es6id: 12.14.5.2 esid: sec-runtime-semantics-destructuringassignmentevaluation ---*/ //- setup var nextCount = 0; var returnCount = 0; var iterable = {}; var iterator = { next: function() { nextCount += 1; return { done: true }; }, return: function() { returnCount += 1; return {}; } }; iterable[Symbol.iterator] = function() { return iterator; }; //- elems [ , ] //- vals iterable //- body assert.sameValue(nextCount, 1); assert.sameValue(returnCount, 0);