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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/raw_object.h" | 5 #include "vm/raw_object.h" |
| 6 | 6 |
| 7 #include "vm/class_table.h" | 7 #include "vm/class_table.h" |
| 8 #include "vm/dart.h" | 8 #include "vm/dart.h" |
| 9 #include "vm/freelist.h" | 9 #include "vm/freelist.h" |
| 10 #include "vm/isolate.h" | 10 #include "vm/isolate.h" |
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| 56 RawClass* raw_class = isolate->class_table()->At(GetClassId()); | 56 RawClass* raw_class = isolate->class_table()->At(GetClassId()); |
| 57 intptr_t instance_size = | 57 intptr_t instance_size = |
| 58 raw_class->ptr()->instance_size_in_words_ << kWordSizeLog2; | 58 raw_class->ptr()->instance_size_in_words_ << kWordSizeLog2; |
| 59 intptr_t class_id = raw_class->ptr()->id_; | 59 intptr_t class_id = raw_class->ptr()->id_; |
| 60 | 60 |
| 61 if (instance_size == 0) { | 61 if (instance_size == 0) { |
| 62 switch (class_id) { | 62 switch (class_id) { |
| 63 case kCodeCid: { | 63 case kCodeCid: { |
| 64 const RawCode* raw_code = reinterpret_cast<const RawCode*>(this); | 64 const RawCode* raw_code = reinterpret_cast<const RawCode*>(this); |
| 65 intptr_t pointer_offsets_length = | 65 intptr_t pointer_offsets_length = |
| 66 raw_code->ptr()->pointer_offsets_length_; | 66 Code::PtrOffBits::decode(raw_code->ptr()->state_bits_); |
| 67 instance_size = Code::InstanceSize(pointer_offsets_length); | 67 instance_size = Code::InstanceSize(pointer_offsets_length); |
| 68 break; | 68 break; |
| 69 } | 69 } |
| 70 case kInstructionsCid: { | 70 case kInstructionsCid: { |
| 71 const RawInstructions* raw_instructions = | 71 const RawInstructions* raw_instructions = |
| 72 reinterpret_cast<const RawInstructions*>(this); | 72 reinterpret_cast<const RawInstructions*>(this); |
| 73 intptr_t instructions_size = raw_instructions->ptr()->size_; | 73 intptr_t instructions_size = raw_instructions->ptr()->size_; |
| 74 instance_size = Instructions::InstanceSize(instructions_size); | 74 instance_size = Instructions::InstanceSize(instructions_size); |
| 75 break; | 75 break; |
| 76 } | 76 } |
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| 448 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 448 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 449 return Namespace::InstanceSize(); | 449 return Namespace::InstanceSize(); |
| 450 } | 450 } |
| 451 | 451 |
| 452 | 452 |
| 453 intptr_t RawCode::VisitCodePointers(RawCode* raw_obj, | 453 intptr_t RawCode::VisitCodePointers(RawCode* raw_obj, |
| 454 ObjectPointerVisitor* visitor) { | 454 ObjectPointerVisitor* visitor) { |
| 455 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 455 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 456 | 456 |
| 457 RawCode* obj = raw_obj->ptr(); | 457 RawCode* obj = raw_obj->ptr(); |
| 458 intptr_t length = obj->pointer_offsets_length_; | 458 intptr_t length = Code::PtrOffBits::decode(obj->state_bits_); |
| 459 if (Code::AliveBit::decode(obj->state_bits_)) { | 459 if (Code::AliveBit::decode(obj->state_bits_)) { |
| 460 // Also visit all the embedded pointers in the corresponding instructions. | 460 // Also visit all the embedded pointers in the corresponding instructions. |
| 461 uword entry_point = reinterpret_cast<uword>(obj->instructions_->ptr()) + | 461 uword entry_point = reinterpret_cast<uword>(obj->instructions_->ptr()) + |
| 462 Instructions::HeaderSize(); | 462 Instructions::HeaderSize(); |
| 463 for (intptr_t i = 0; i < length; i++) { | 463 for (intptr_t i = 0; i < length; i++) { |
| 464 int32_t offset = obj->data()[i]; | 464 int32_t offset = obj->data()[i]; |
| 465 visitor->VisitPointer( | 465 visitor->VisitPointer( |
| 466 reinterpret_cast<RawObject**>(entry_point + offset)); | 466 reinterpret_cast<RawObject**>(entry_point + offset)); |
| 467 } | 467 } |
| 468 } | 468 } |
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| 864 intptr_t RawUserTag::VisitUserTagPointers( | 864 intptr_t RawUserTag::VisitUserTagPointers( |
| 865 RawUserTag* raw_obj, ObjectPointerVisitor* visitor) { | 865 RawUserTag* raw_obj, ObjectPointerVisitor* visitor) { |
| 866 // Make sure that we got here with the tagged pointer as this. | 866 // Make sure that we got here with the tagged pointer as this. |
| 867 ASSERT(raw_obj->IsHeapObject()); | 867 ASSERT(raw_obj->IsHeapObject()); |
| 868 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 868 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 869 return UserTag::InstanceSize(); | 869 return UserTag::InstanceSize(); |
| 870 } | 870 } |
| 871 | 871 |
| 872 | 872 |
| 873 } // namespace dart | 873 } // namespace dart |
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