mirror of https://github.com/tc39/test262.git
32 lines
1.1 KiB
JavaScript
32 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: 13.7.5.11
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description: >
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Completion value when head has a declaration and iteration occurs
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info: >
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IterationStatement : for ( var ForBinding in Expression ) Statement
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1. Let keyResult be ForIn/OfHeadEvaluation( « », Expression, enumerate).
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2. ReturnIfAbrupt(keyResult).
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3. Return ForIn/OfBodyEvaluation(ForBinding, Statement, keyResult,
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varBinding, labelSet).
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13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
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[...]
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2. Let V = undefined.
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[...]
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5. Repeat
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a. Let nextResult be IteratorStep(iterator).
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b. ReturnIfAbrupt(nextResult).
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c. If nextResult is false, return NormalCompletion(V).
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[...]
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k. Let result be the result of evaluating stmt.
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[...]
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n. If result.[[value]] is not empty, let V be result.[[value]].
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---*/
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assert.sameValue(eval('1; for (var a in { x: 0 }) { }'), undefined);
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assert.sameValue(eval('2; for (var b in { x: 0 }) { 3; }'), 3);
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