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Issue 7080053: Make instanceof and Object.getPrototypeOf work for proxies, plus a few other tweaks. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 9 years, 6 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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356 356
357 // If the result is an object (in the ECMA sense), we should get rid 357 // If the result is an object (in the ECMA sense), we should get rid
358 // of the receiver and use the result; see ECMA-262 section 13.2.2-7 358 // of the receiver and use the result; see ECMA-262 section 13.2.2-7
359 // on page 74. 359 // on page 74.
360 Label use_receiver, exit; 360 Label use_receiver, exit;
361 // If the result is a smi, it is *not* an object in the ECMA sense. 361 // If the result is a smi, it is *not* an object in the ECMA sense.
362 __ JumpIfSmi(rax, &use_receiver); 362 __ JumpIfSmi(rax, &use_receiver);
363 363
364 // If the type of the result (stored in its map) is less than 364 // If the type of the result (stored in its map) is less than
365 // FIRST_SPEC_OBJECT_TYPE, it is not an object in the ECMA sense. 365 // FIRST_SPEC_OBJECT_TYPE, it is not an object in the ECMA sense.
366 STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE);
366 __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rcx); 367 __ CmpObjectType(rax, FIRST_SPEC_OBJECT_TYPE, rcx);
367 __ j(above_equal, &exit); 368 __ j(above_equal, &exit);
368 369
369 // Throw away the result of the constructor invocation and use the 370 // Throw away the result of the constructor invocation and use the
370 // on-stack receiver as the result. 371 // on-stack receiver as the result.
371 __ bind(&use_receiver); 372 __ bind(&use_receiver);
372 __ movq(rax, Operand(rsp, 0)); 373 __ movq(rax, Operand(rsp, 0));
373 374
374 // Restore the arguments count and leave the construct frame. 375 // Restore the arguments count and leave the construct frame.
375 __ bind(&exit); 376 __ bind(&exit);
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1513 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); 1514 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
1514 generator.Generate(); 1515 generator.Generate();
1515 } 1516 }
1516 1517
1517 1518
1518 #undef __ 1519 #undef __
1519 1520
1520 } } // namespace v8::internal 1521 } } // namespace v8::internal
1521 1522
1522 #endif // V8_TARGET_ARCH_X64 1523 #endif // V8_TARGET_ARCH_X64
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