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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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4255 } | 4255 } |
4256 | 4256 |
4257 | 4257 |
4258 MaybeObject* Heap::AllocateArgumentsObject(Object* callee, int length) { | 4258 MaybeObject* Heap::AllocateArgumentsObject(Object* callee, int length) { |
4259 // To get fast allocation and map sharing for arguments objects we | 4259 // To get fast allocation and map sharing for arguments objects we |
4260 // allocate them based on an arguments boilerplate. | 4260 // allocate them based on an arguments boilerplate. |
4261 | 4261 |
4262 JSObject* boilerplate; | 4262 JSObject* boilerplate; |
4263 int arguments_object_size; | 4263 int arguments_object_size; |
4264 bool strict_mode_callee = callee->IsJSFunction() && | 4264 bool strict_mode_callee = callee->IsJSFunction() && |
4265 !JSFunction::cast(callee)->shared()->is_sloppy_mode(); | 4265 JSFunction::cast(callee)->shared()->strict_mode() == STRICT; |
4266 if (strict_mode_callee) { | 4266 if (strict_mode_callee) { |
4267 boilerplate = | 4267 boilerplate = |
4268 isolate()->context()->native_context()-> | 4268 isolate()->context()->native_context()->strict_arguments_boilerplate(); |
4269 strict_mode_arguments_boilerplate(); | 4269 arguments_object_size = kStrictArgumentsObjectSize; |
4270 arguments_object_size = kArgumentsObjectSizeStrict; | |
4271 } else { | 4270 } else { |
4272 boilerplate = | 4271 boilerplate = |
4273 isolate()->context()->native_context()->arguments_boilerplate(); | 4272 isolate()->context()->native_context()->sloppy_arguments_boilerplate(); |
4274 arguments_object_size = kArgumentsObjectSize; | 4273 arguments_object_size = kSloppyArgumentsObjectSize; |
4275 } | 4274 } |
4276 | 4275 |
4277 // Check that the size of the boilerplate matches our | 4276 // Check that the size of the boilerplate matches our |
4278 // expectations. The ArgumentsAccessStub::GenerateNewObject relies | 4277 // expectations. The ArgumentsAccessStub::GenerateNewObject relies |
4279 // on the size being a known constant. | 4278 // on the size being a known constant. |
4280 ASSERT(arguments_object_size == boilerplate->map()->instance_size()); | 4279 ASSERT(arguments_object_size == boilerplate->map()->instance_size()); |
4281 | 4280 |
4282 // Do the allocation. | 4281 // Do the allocation. |
4283 Object* result; | 4282 Object* result; |
4284 { MaybeObject* maybe_result = | 4283 { MaybeObject* maybe_result = |
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7743 static_cast<int>(object_sizes_last_time_[index])); | 7742 static_cast<int>(object_sizes_last_time_[index])); |
7744 CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT) | 7743 CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT) |
7745 #undef ADJUST_LAST_TIME_OBJECT_COUNT | 7744 #undef ADJUST_LAST_TIME_OBJECT_COUNT |
7746 | 7745 |
7747 OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); | 7746 OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_)); |
7748 OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); | 7747 OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_)); |
7749 ClearObjectStats(); | 7748 ClearObjectStats(); |
7750 } | 7749 } |
7751 | 7750 |
7752 } } // namespace v8::internal | 7751 } } // namespace v8::internal |
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