// 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 assignment evaluation has exhausted the iterator info: | ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ] [...] 5. Let result be the result of performing IteratorDestructuringAssignmentEvaluation of AssignmentRestElement with iteratorRecord as the argument 6. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, result). 7. Return result. features: [Symbol.iterator] template: default es6id: 12.14.5.2 esid: sec-runtime-semantics-destructuringassignmentevaluation ---*/ //- setup var nextCount = 0; var returnCount = 0; var x; var iterable = {}; 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);