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			27 lines
		
	
	
		
			523 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			523 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2017 the V8 project authors. All rights reserved.
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| // Use of this source code is governed by a BSD-style license that can be
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| // found in the LICENSE file.
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| 
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| // Flags: --allow-natives-syntax
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| 
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| function opt(b) {
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|     let iterator = new Set().values();
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|     iterator.x = 0;
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| 
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|     let arr = [iterator, iterator];
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|     if (b)
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|         return arr.slice();
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| }
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| 
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| opt(false);
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| opt(false);
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| %OptimizeFunctionOnNextCall(opt);
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| 
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| let res = opt(true);
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| let a = res[0];
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| let b = res[1];
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| 
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| assertTrue(a === b);
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| a.x = 7;
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| assertEquals(7, b.x);
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