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Issue 1602010: Add number string cache lookup for heap numbers to generatred code (on top of... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 10 years, 8 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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523 // ECMA-262, section 9.8, page 35. 523 // ECMA-262, section 9.8, page 35.
524 function ToString(x) { 524 function ToString(x) {
525 if (IS_STRING(x)) return x; 525 if (IS_STRING(x)) return x;
526 if (IS_NUMBER(x)) return %_NumberToString(x); 526 if (IS_NUMBER(x)) return %_NumberToString(x);
527 if (IS_BOOLEAN(x)) return x ? 'true' : 'false'; 527 if (IS_BOOLEAN(x)) return x ? 'true' : 'false';
528 if (IS_UNDEFINED(x)) return 'undefined'; 528 if (IS_UNDEFINED(x)) return 'undefined';
529 return (IS_NULL(x)) ? 'null' : %ToString(%DefaultString(x)); 529 return (IS_NULL(x)) ? 'null' : %ToString(%DefaultString(x));
530 } 530 }
531 531
532 function NonStringToString(x) { 532 function NonStringToString(x) {
533 if (IS_NUMBER(x)) return %NumberToString(x); 533 if (IS_NUMBER(x)) return %_NumberToString(x);
534 if (IS_BOOLEAN(x)) return x ? 'true' : 'false'; 534 if (IS_BOOLEAN(x)) return x ? 'true' : 'false';
535 if (IS_UNDEFINED(x)) return 'undefined'; 535 if (IS_UNDEFINED(x)) return 'undefined';
536 return (IS_NULL(x)) ? 'null' : %ToString(%DefaultString(x)); 536 return (IS_NULL(x)) ? 'null' : %ToString(%DefaultString(x));
537 } 537 }
538 538
539 539
540 // ECMA-262, section 9.9, page 36. 540 // ECMA-262, section 9.9, page 36.
541 function ToObject(x) { 541 function ToObject(x) {
542 if (IS_STRING(x)) return new $String(x); 542 if (IS_STRING(x)) return new $String(x);
543 if (IS_NUMBER(x)) return new $Number(x); 543 if (IS_NUMBER(x)) return new $Number(x);
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639 throw %MakeTypeError('cannot_convert_to_primitive', []); 639 throw %MakeTypeError('cannot_convert_to_primitive', []);
640 } 640 }
641 641
642 642
643 // NOTE: Setting the prototype for Array must take place as early as 643 // NOTE: Setting the prototype for Array must take place as early as
644 // possible due to code generation for array literals. When 644 // possible due to code generation for array literals. When
645 // generating code for a array literal a boilerplate array is created 645 // generating code for a array literal a boilerplate array is created
646 // that is cloned when running the code. It is essiential that the 646 // that is cloned when running the code. It is essiential that the
647 // boilerplate gets the right prototype. 647 // boilerplate gets the right prototype.
648 %FunctionSetPrototype($Array, new $Array(0)); 648 %FunctionSetPrototype($Array, new $Array(0));
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