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44 lines
1022 B
Plaintext
44 lines
1022 B
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: Abrupt completion returned from IteratorClose
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info: |
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ArrayAssignmentPattern : [ AssignmentElementList ]
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[...]
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5. If iteratorRecord.[[done]] is false, return IteratorClose(iterator, result).
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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 _;
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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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// Set an upper-bound to limit unnecessary iteration in non-conformant
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// implementations
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return { done: nextCount > 10 };
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},
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return: function() {
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returnCount += 1;
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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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//- elems
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[ _ ]
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//- vals
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iterable
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//- error
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Test262Error
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//- teardown
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assert.sameValue(nextCount, 1);
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assert.sameValue(returnCount, 1);
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