mirror of https://github.com/tc39/test262.git
42 lines
1.4 KiB
JavaScript
42 lines
1.4 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 no declaration and iteration is cancelled
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info: |
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IterationStatement : for ( LeftHandSideExpression 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(LeftHandSideExpression, Statement,
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keyResult, assignment, 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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m. If LoopContinues(result, labelSet) is false, return
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IteratorClose(iterator, UpdateEmpty(result, V)).
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---*/
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assert.sameValue(eval('var a; 1; for (a in { x: 0 }) { break; }'), undefined);
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assert.sameValue(eval('var b; 2; for (b in { x: 0 }) { 3; break; }'), 3);
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assert.sameValue(
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eval('var a; 4; outer: do { for (a in { x: 0 }) { continue outer; } } while (false)'),
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undefined
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);
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assert.sameValue(
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eval('var b; 5; outer: do { for (b in { x: 0 }) { 6; continue outer; } } while (false)'),
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6
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);
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