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b3092c61b6
* Add missing generators feature flags * Generate files * Add generators flags * fixup! Add generators flags
30 lines
976 B
JavaScript
30 lines
976 B
JavaScript
// Copyright (C) 2013 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: 25.2
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description: >
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When the `next` method of a generator-produced iterable is invoked without
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an argument, the corresponding `yield` expression should be evaluated as
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`undefined`.
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features: [generators]
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---*/
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function* g() { actual = yield; }
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var expected = {};
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var iter = g();
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var actual, result;
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result = iter.next();
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assert.sameValue(result.value, undefined, 'First result `value`');
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assert.sameValue(result.done, false, 'First result `done` flag');
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assert.sameValue(
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actual, undefined, 'Value of `yield` expression (prior to continuation)'
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);
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result = iter.next(expected);
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assert.sameValue(result.value, undefined, 'Second result `value`');
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assert.sameValue(result.done, true, 'Second result `done` flag');
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assert.sameValue(
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actual, expected, 'Value of `yield` expression (following continuation)'
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);
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