// 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 produces an abrupt completion info: | ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ] [...] 4. If Elision is present, then a. Let status be the result of performing IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord as the argument. b. If status is an abrupt completion, then i. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, status). ii. Return Completion(status). features: [Symbol.iterator] template: error 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; throw new Test262Error(); }, return: function() { returnCount += 1; } }; iterable[Symbol.iterator] = function() { return iterator; }; var x; //- error Test262Error //- elems [ , ...x] //- vals iterable //- teardown assert.sameValue(nextCount, 1); assert.sameValue(returnCount, 0);