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			34 lines
		
	
	
		
			684 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			684 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2015 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 --expose-gc
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| 
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| var inner = new Array();
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| inner.a = {x:1};
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| inner[0] = 1.5;
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| inner.b = {x:2};
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| assertTrue(%HasDoubleElements(inner));
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| 
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| function foo(o) {
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|   return o.field.a.x;
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| }
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| 
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| var outer = {};
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| outer.field = inner;
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| foo(outer);
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| foo(outer);
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| foo(outer);
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| %OptimizeFunctionOnNextCall(foo);
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| foo(outer);
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| 
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| // Generalize representation of field "a" of inner object.
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| var v = { get x() { return 0x7fffffff; } };
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| inner.a = v;
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| 
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| gc();
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| 
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| var boom = foo(outer);
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| print(boom);
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| assertEquals(0x7fffffff, boom);
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