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			23 lines
		
	
	
		
			574 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			574 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2018 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 foo(a) {
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|   a = "" + Math.abs(a);
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|   return a.charCodeAt(0);
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| }
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| 
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| // Add '1' to the number to string table (as SeqString).
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| String.fromCharCode(49);
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| 
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| // Turn the SeqString into a ThinString via forced internalization.
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| const o = {};
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| o[(1).toString()] = 1;
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| 
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| assertEquals(49, foo(1));
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| assertEquals(49, foo(1));
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| %OptimizeFunctionOnNextCall(foo);
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| assertEquals(49, foo(1));
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