// 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 invoked when evaluation of AssignmentElementList exhausts the iterator info: | ArrayAssignmentPattern : [ AssignmentElementList , Elisionopt AssignmentRestElementopt ] [...] 3. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}. 4. Let status be the result of performing IteratorDestructuringAssignmentEvaluation of AssignmentElementList using iteratorRecord as the argument. 5. If status is an abrupt completion, then a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, status). b. Return Completion(status). 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 thrower = function() { throw new Test262Error(); }; var x; var iterator = { next: function() { nextCount += 1; return { done: true }; }, return: function() { returnCount += 1; } }; iterable[Symbol.iterator] = function() { return iterator; }; //- elems [ x , ] //- vals iterable //- body assert.sameValue(nextCount, 1); assert.sameValue(returnCount, 0);