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62 lines
1.5 KiB
Plaintext
62 lines
1.5 KiB
Plaintext
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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desc: >
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IteratorClose is not called when value assignment produces an abrupt
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completion.
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info: |
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ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ]
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[...]
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5. Let result be the result of performing
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IteratorDestructuringAssignmentEvaluation of AssignmentRestElement with
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iteratorRecord as the argument
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6. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
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result).
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AssignmentRestElement[Yield] : ... DestructuringAssignmentTarget
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[...]
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4. Repeat while iteratorRecord.[[done]] is false
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[...]
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d. If next is false, set iteratorRecord.[[done]] to true.
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[...]
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5. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an
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ArrayLiteral, then
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a. Return PutValue(lref, A).
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features: [Symbol.iterator]
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template: error
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esid: sec-runtime-semantics-destructuringassignmentevaluation
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---*/
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//- setup
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var nextCount = 0;
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var returnCount = 0;
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var iterable = {};
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var iterator = {
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next: function() {
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nextCount += 1;
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return { done: true };
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},
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return: function() {
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returnCount += 1;
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}
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};
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var obj = Object.defineProperty({}, 'poisoned', {
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set: function(x) {
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throw new Test262Error();
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}
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});
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iterable[Symbol.iterator] = function() {
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return iterator;
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};
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//- error
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Test262Error
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//- elems
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[...obj.poisoned]
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//- vals
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iterable
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//- teardown
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assert.sameValue(nextCount, 1);
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assert.sameValue(returnCount, 0);
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