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Issue 6698015: Implement strict mode arguments caller/callee. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Kevin's feedback. Created 9 years, 9 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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190 // Receiver is just before the parameters on the caller's stack. 190 // Receiver is just before the parameters on the caller's stack.
191 int offset = scope()->num_parameters() * kPointerSize; 191 int offset = scope()->num_parameters() * kPointerSize;
192 __ lea(edx, 192 __ lea(edx,
193 Operand(ebp, StandardFrameConstants::kCallerSPOffset + offset)); 193 Operand(ebp, StandardFrameConstants::kCallerSPOffset + offset));
194 __ push(edx); 194 __ push(edx);
195 __ push(Immediate(Smi::FromInt(scope()->num_parameters()))); 195 __ push(Immediate(Smi::FromInt(scope()->num_parameters())));
196 // Arguments to ArgumentsAccessStub: 196 // Arguments to ArgumentsAccessStub:
197 // function, receiver address, parameter count. 197 // function, receiver address, parameter count.
198 // The stub will rewrite receiver and parameter count if the previous 198 // The stub will rewrite receiver and parameter count if the previous
199 // stack frame was an arguments adapter frame. 199 // stack frame was an arguments adapter frame.
200 ArgumentsAccessStub stub(ArgumentsAccessStub::NEW_OBJECT); 200 ArgumentsAccessStub stub(is_strict()
201 ? ArgumentsAccessStub::NEW_STRICT
202 : ArgumentsAccessStub::NEW_NON_STRICT);
201 __ CallStub(&stub); 203 __ CallStub(&stub);
202 204
203 Variable* arguments_shadow = scope()->arguments_shadow(); 205 Variable* arguments_shadow = scope()->arguments_shadow();
204 if (arguments_shadow != NULL) { 206 if (arguments_shadow != NULL) {
205 __ mov(ecx, eax); // Duplicate result. 207 __ mov(ecx, eax); // Duplicate result.
206 Move(arguments_shadow->AsSlot(), ecx, ebx, edx); 208 Move(arguments_shadow->AsSlot(), ecx, ebx, edx);
207 } 209 }
208 Move(arguments->AsSlot(), eax, ebx, edx); 210 Move(arguments->AsSlot(), eax, ebx, edx);
209 } 211 }
210 212
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4260 // And return. 4262 // And return.
4261 __ ret(0); 4263 __ ret(0);
4262 } 4264 }
4263 4265
4264 4266
4265 #undef __ 4267 #undef __
4266 4268
4267 } } // namespace v8::internal 4269 } } // namespace v8::internal
4268 4270
4269 #endif // V8_TARGET_ARCH_IA32 4271 #endif // V8_TARGET_ARCH_IA32
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