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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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| 65 | 65 |
| 66 // Get the instance size out of the class. | 66 // Get the instance size out of the class. |
| 67 intptr_t instance_size = | 67 intptr_t instance_size = |
| 68 raw_class->ptr()->instance_size_in_words_ << kWordSizeLog2; | 68 raw_class->ptr()->instance_size_in_words_ << kWordSizeLog2; |
| 69 | 69 |
| 70 if (instance_size == 0) { | 70 if (instance_size == 0) { |
| 71 switch (class_id) { | 71 switch (class_id) { |
| 72 case kCodeCid: { | 72 case kCodeCid: { |
| 73 const RawCode* raw_code = reinterpret_cast<const RawCode*>(this); | 73 const RawCode* raw_code = reinterpret_cast<const RawCode*>(this); |
| 74 intptr_t pointer_offsets_length = | 74 intptr_t pointer_offsets_length = |
| 75 raw_code->ptr()->pointer_offsets_length_; | 75 Code::PtrOffBits::decode(raw_code->ptr()->state_bits_); |
| 76 instance_size = Code::InstanceSize(pointer_offsets_length); | 76 instance_size = Code::InstanceSize(pointer_offsets_length); |
| 77 break; | 77 break; |
| 78 } | 78 } |
| 79 case kInstructionsCid: { | 79 case kInstructionsCid: { |
| 80 const RawInstructions* raw_instructions = | 80 const RawInstructions* raw_instructions = |
| 81 reinterpret_cast<const RawInstructions*>(this); | 81 reinterpret_cast<const RawInstructions*>(this); |
| 82 intptr_t instructions_size = raw_instructions->ptr()->size_; | 82 intptr_t instructions_size = raw_instructions->ptr()->size_; |
| 83 instance_size = Instructions::InstanceSize(instructions_size); | 83 instance_size = Instructions::InstanceSize(instructions_size); |
| 84 break; | 84 break; |
| 85 } | 85 } |
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| 461 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 461 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 462 return Namespace::InstanceSize(); | 462 return Namespace::InstanceSize(); |
| 463 } | 463 } |
| 464 | 464 |
| 465 | 465 |
| 466 intptr_t RawCode::VisitCodePointers(RawCode* raw_obj, | 466 intptr_t RawCode::VisitCodePointers(RawCode* raw_obj, |
| 467 ObjectPointerVisitor* visitor) { | 467 ObjectPointerVisitor* visitor) { |
| 468 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 468 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 469 | 469 |
| 470 RawCode* obj = raw_obj->ptr(); | 470 RawCode* obj = raw_obj->ptr(); |
| 471 intptr_t length = obj->pointer_offsets_length_; | 471 intptr_t length = Code::PtrOffBits::decode(obj->state_bits_); |
| 472 if (Code::AliveBit::decode(obj->state_bits_)) { | 472 if (Code::AliveBit::decode(obj->state_bits_)) { |
| 473 // Also visit all the embedded pointers in the corresponding instructions. | 473 // Also visit all the embedded pointers in the corresponding instructions. |
| 474 uword entry_point = reinterpret_cast<uword>(obj->instructions_->ptr()) + | 474 uword entry_point = reinterpret_cast<uword>(obj->instructions_->ptr()) + |
| 475 Instructions::HeaderSize(); | 475 Instructions::HeaderSize(); |
| 476 for (intptr_t i = 0; i < length; i++) { | 476 for (intptr_t i = 0; i < length; i++) { |
| 477 int32_t offset = obj->data()[i]; | 477 int32_t offset = obj->data()[i]; |
| 478 visitor->VisitPointer( | 478 visitor->VisitPointer( |
| 479 reinterpret_cast<RawObject**>(entry_point + offset)); | 479 reinterpret_cast<RawObject**>(entry_point + offset)); |
| 480 } | 480 } |
| 481 } | 481 } |
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| 891 intptr_t RawUserTag::VisitUserTagPointers( | 891 intptr_t RawUserTag::VisitUserTagPointers( |
| 892 RawUserTag* raw_obj, ObjectPointerVisitor* visitor) { | 892 RawUserTag* raw_obj, ObjectPointerVisitor* visitor) { |
| 893 // Make sure that we got here with the tagged pointer as this. | 893 // Make sure that we got here with the tagged pointer as this. |
| 894 ASSERT(raw_obj->IsHeapObject()); | 894 ASSERT(raw_obj->IsHeapObject()); |
| 895 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 895 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 896 return UserTag::InstanceSize(); | 896 return UserTag::InstanceSize(); |
| 897 } | 897 } |
| 898 | 898 |
| 899 | 899 |
| 900 } // namespace dart | 900 } // namespace dart |
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