mirror of https://github.com/tc39/test262.git
60 lines
1.4 KiB
Plaintext
60 lines
1.4 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 called when assignment evaluation has not exhausted the
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iterator
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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,
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result).
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6. Return result.
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7.4.6 IteratorClose( iterator, completion )
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[...]
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6. Let innerResult be Call(return, iterator, « »).
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[...]
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features: [Symbol.iterator]
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template: default
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es6id: 12.14.5.2
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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 thisValue = null;
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var args = null;
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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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thisValue = this;
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args = arguments;
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return {};
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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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//- body
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assert.sameValue(nextCount, 1);
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assert.sameValue(returnCount, 1);
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assert.sameValue(thisValue, iterator, 'correct `this` value');
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assert(!!args, 'arguments object provided');
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assert.sameValue(args.length, 0, 'zero arguments specified');
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