| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| desc: Abrupt completion returned from IteratorClose |
| info: | |
| ArrayAssignmentPattern : [ AssignmentElementList ] |
| |
| [...] |
| 5. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, result). |
| features: [Symbol.iterator] |
| template: error |
| esid: sec-runtime-semantics-destructuringassignmentevaluation |
| ---*/ |
| |
| //- setup |
| var nextCount = 0; |
| var returnCount = 0; |
| var _; |
| var iterable = {}; |
| var iterator = { |
| next: function() { |
| nextCount += 1; |
| // Set an upper-bound to limit unnecessary iteration in non-conformant |
| // implementations |
| return { done: nextCount > 10 }; |
| }, |
| return: function() { |
| returnCount += 1; |
| throw new Test262Error(); |
| } |
| }; |
| iterable[Symbol.iterator] = function() { |
| return iterator; |
| }; |
| //- elems |
| [ _ ] |
| //- vals |
| iterable |
| //- error |
| Test262Error |
| //- teardown |
| assert.sameValue(nextCount, 1); |
| assert.sameValue(returnCount, 1); |
