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			26 lines
		
	
	
		
			713 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			713 B
		
	
	
	
		
			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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description: Expression is allowed in head
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info: |
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    IterationStatement : for ( ForDeclaration in Expression ) Statement
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    1. Let keyResult be the result of performing
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       ForIn/OfHeadEvaluation(BoundNames of ForDeclaration, Expression,
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       enumerate).
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    2. ReturnIfAbrupt(keyResult).
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    3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
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       lexicalBinding, labelSet).
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es6id: 13.7.5.11
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---*/
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var iterCount = 0;
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for (var x in null, { key: 0 }) {
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  assert.sameValue(x, 'key');
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  iterCount += 1;
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}
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assert.sameValue(iterCount, 1);
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