mirror of
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129 lines
3.0 KiB
JavaScript
129 lines
3.0 KiB
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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description: >
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`yield` is a valid expression within generator function bodies.
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features: [generators]
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es6id: 14.4
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---*/
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var iter, result;
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var obj = {
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*g1() { (yield) },
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*g2() { [yield] },
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*g3() { {yield} },
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*g4() { yield, yield; },
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*g5() { (yield) ? yield : yield; }
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};
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iter = obj.g1();
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Within grouping operator: result `value`'
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);
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assert.sameValue(
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result.done, false, 'Within grouping operator: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Following grouping operator: result `value`'
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);
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assert.sameValue(
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result.done, true, 'Following grouping operator: result `done` flag'
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);
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iter = obj.g2();
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Within array literal: result `value`'
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);
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assert.sameValue(
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result.done, false, 'Within array literal: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Following array literal: result `value`'
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);
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assert.sameValue(
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result.done, true, 'Following array literal: result `done` flag'
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);
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iter = obj.g3();
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Within object literal: result `value`'
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);
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assert.sameValue(
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result.done, false, 'Within object literal: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Following object literal: result `value`'
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);
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assert.sameValue(
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result.done, true, 'Following object literal: result `done` flag'
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);
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iter = obj.g4();
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result = iter.next();
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assert.sameValue(
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result.value,
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undefined,
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'First expression in comma expression: result `value`'
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);
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assert.sameValue(
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result.done,
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false,
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'First expression in comma expression: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value,
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undefined,
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'Second expression in comma expression: result `value`'
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);
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assert.sameValue(
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result.done,
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false,
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'Second expression in comma expression: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Following comma expression: result `value`'
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);
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assert.sameValue(
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result.done, true, 'Following comma expression: result `done` flag'
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);
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iter = obj.g5();
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result = iter.next();
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assert.sameValue(
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result.value,
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undefined,
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'Conditional expression in conditional operator: result `value`'
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);
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assert.sameValue(
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result.done,
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false,
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'Conditional expression in conditional operator: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value,
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undefined,
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'Branch in conditional operator: result `value`'
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);
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assert.sameValue(
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result.done,
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false,
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'Branch in conditional operator: result `done` flag'
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);
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result = iter.next();
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assert.sameValue(
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result.value, undefined, 'Following conditional operator: result `value`'
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);
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assert.sameValue(
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result.done, true, 'Following conditional operator: result `done` flag'
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);
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