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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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8223 Slot* slot = variable->AsSlot(); | 8223 Slot* slot = variable->AsSlot(); |
8224 if (variable->is_global()) { | 8224 if (variable->is_global()) { |
8225 LoadGlobal(); | 8225 LoadGlobal(); |
8226 frame_->Push(variable->name()); | 8226 frame_->Push(variable->name()); |
8227 Result answer = frame_->InvokeBuiltin(Builtins::DELETE, | 8227 Result answer = frame_->InvokeBuiltin(Builtins::DELETE, |
8228 CALL_FUNCTION, 2); | 8228 CALL_FUNCTION, 2); |
8229 frame_->Push(&answer); | 8229 frame_->Push(&answer); |
8230 return; | 8230 return; |
8231 | 8231 |
8232 } else if (slot != NULL && slot->type() == Slot::LOOKUP) { | 8232 } else if (slot != NULL && slot->type() == Slot::LOOKUP) { |
8233 // Call the runtime to look up the context holding the named | 8233 // Call the runtime to delete from the context holding the named |
8234 // variable. Sync the virtual frame eagerly so we can push the | 8234 // variable. Sync the virtual frame eagerly so we can push the |
8235 // arguments directly into place. | 8235 // arguments directly into place. |
8236 frame_->SyncRange(0, frame_->element_count() - 1); | 8236 frame_->SyncRange(0, frame_->element_count() - 1); |
8237 frame_->EmitPush(esi); | 8237 frame_->EmitPush(esi); |
8238 frame_->EmitPush(Immediate(variable->name())); | 8238 frame_->EmitPush(Immediate(variable->name())); |
8239 Result context = frame_->CallRuntime(Runtime::kLookupContext, 2); | 8239 Result answer = frame_->CallRuntime(Runtime::kDeleteContextSlot, 2); |
8240 ASSERT(context.is_register()); | |
8241 frame_->EmitPush(context.reg()); | |
8242 context.Unuse(); | |
8243 frame_->EmitPush(Immediate(variable->name())); | |
8244 Result answer = frame_->InvokeBuiltin(Builtins::DELETE, | |
8245 CALL_FUNCTION, 2); | |
8246 frame_->Push(&answer); | 8240 frame_->Push(&answer); |
8247 return; | 8241 return; |
8248 } | 8242 } |
8249 | 8243 |
8250 // Default: Result of deleting non-global, not dynamically | 8244 // Default: Result of deleting non-global, not dynamically |
8251 // introduced variables is false. | 8245 // introduced variables is false. |
8252 frame_->Push(Factory::false_value()); | 8246 frame_->Push(Factory::false_value()); |
8253 | 8247 |
8254 } else { | 8248 } else { |
8255 // Default: Result of deleting expressions is true. | 8249 // Default: Result of deleting expressions is true. |
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10316 memcpy(chunk->GetStartAddress(), desc.buffer, desc.instr_size); | 10310 memcpy(chunk->GetStartAddress(), desc.buffer, desc.instr_size); |
10317 CPU::FlushICache(chunk->GetStartAddress(), desc.instr_size); | 10311 CPU::FlushICache(chunk->GetStartAddress(), desc.instr_size); |
10318 return FUNCTION_CAST<MemCopyFunction>(chunk->GetStartAddress()); | 10312 return FUNCTION_CAST<MemCopyFunction>(chunk->GetStartAddress()); |
10319 } | 10313 } |
10320 | 10314 |
10321 #undef __ | 10315 #undef __ |
10322 | 10316 |
10323 } } // namespace v8::internal | 10317 } } // namespace v8::internal |
10324 | 10318 |
10325 #endif // V8_TARGET_ARCH_IA32 | 10319 #endif // V8_TARGET_ARCH_IA32 |
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