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33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
// 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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es6id: 13.7.4.7
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description: >
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Completion value when head has a declaration and a "test" expression and iteration occurs
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info: |
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IterationStatement :
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for ( var VariableDeclarationList ; Expressionopt ; Expressionopt ) Statement
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1. Let varDcl be the result of evaluating VariableDeclarationList.
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2. ReturnIfAbrupt(varDcl).
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3. Return ForBodyEvaluation(the first Expression, the second Expression,
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Statement, « », labelSet).
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13.7.4.8 Runtime Semantics: ForBodyEvaluation
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1. Let V = undefined.
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[...]
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4. Repeat
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a. If test is not [empty], then
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i. Let testRef be the result of evaluating test.
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ii. Let testValue be GetValue(testRef).
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iii. ReturnIfAbrupt(testValue).
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iv. If ToBoolean(testValue) is false, return NormalCompletion(V).
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---*/
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assert.sameValue(
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eval('1; for (var runA = true; runA; runA = false) { }'), undefined
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);
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assert.sameValue(
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eval('2; for (var runB = true; runB; runB = false) { 3; }'), 3
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);
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