mirror of https://github.com/tc39/test262.git
52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
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// Copyright (C) 2015 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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es6id: 13.6.4.13
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description: >
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Control flow during body evaluation should honor `yield *` statements.
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features: [generators]
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---*/
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function* values() {
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yield 1;
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yield 1;
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}
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var dataIterator = values();
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var controlIterator = (function*() {
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for (var x of dataIterator) {
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i++;
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yield * values();
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j++;
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}
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k++;
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})();
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var i = 0;
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var j = 0;
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var k = 0;
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controlIterator.next();
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assert.sameValue(i, 1, 'First iteration: pre-yield');
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assert.sameValue(j, 0, 'First iteration: post-yield');
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assert.sameValue(k, 0, 'First iteration: post-for-of');
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controlIterator.next();
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assert.sameValue(i, 1, 'Second iteration: pre-yield');
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assert.sameValue(j, 0, 'Second iteration: post-yield');
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assert.sameValue(k, 0, 'Second iteration: post-for-of');
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controlIterator.next();
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assert.sameValue(i, 2, 'Third iteration: pre-yield');
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assert.sameValue(j, 1, 'Third iteration: post-yield');
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assert.sameValue(k, 0, 'Third iteration: post-for-of');
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controlIterator.next();
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assert.sameValue(i, 2, 'Fourth iteration: pre-yield');
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assert.sameValue(j, 1, 'Fourth iteration: post-yield');
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assert.sameValue(k, 0, 'Fourth iteration: post-for-of');
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controlIterator.next();
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assert.sameValue(i, 2, 'Fifth iteration: pre-yield');
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assert.sameValue(j, 2, 'Fifth iteration: post-yield');
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assert.sameValue(k, 1, 'Fifth iteration: post-for-of');
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