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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/freelist.h" | 8 #include "vm/freelist.h" |
| 9 #include "vm/isolate.h" | 9 #include "vm/isolate.h" |
| 10 #include "vm/object.h" | 10 #include "vm/object.h" |
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| 30 return; | 30 return; |
| 31 } | 31 } |
| 32 // All Smi values are valid. | 32 // All Smi values are valid. |
| 33 if (!IsHeapObject()) { | 33 if (!IsHeapObject()) { |
| 34 return; | 34 return; |
| 35 } | 35 } |
| 36 // Validate that the tags_ field is sensible. | 36 // Validate that the tags_ field is sensible. |
| 37 uword tags = ptr()->tags_; | 37 uword tags = ptr()->tags_; |
| 38 intptr_t reserved = ReservedBits::decode(tags); | 38 intptr_t reserved = ReservedBits::decode(tags); |
| 39 if (reserved != 0) { | 39 if (reserved != 0) { |
| 40 FATAL1("Invalid tags field encountered %#"Px"\n", tags); | 40 FATAL1("Invalid tags field encountered %#" Px "\n", tags); |
| 41 } | 41 } |
| 42 intptr_t class_id = ClassIdTag::decode(tags); | 42 intptr_t class_id = ClassIdTag::decode(tags); |
| 43 if (!isolate->class_table()->IsValidIndex(class_id)) { | 43 if (!isolate->class_table()->IsValidIndex(class_id)) { |
| 44 FATAL1("Invalid class id encountered %"Pd"\n", class_id); | 44 FATAL1("Invalid class id encountered %" Pd "\n", class_id); |
| 45 } | 45 } |
| 46 intptr_t size = SizeTag::decode(tags); | 46 intptr_t size = SizeTag::decode(tags); |
| 47 if (size != 0 && size != SizeFromClass()) { | 47 if (size != 0 && size != SizeFromClass()) { |
| 48 FATAL1("Inconsistent class size encountered %"Pd"\n", size); | 48 FATAL1("Inconsistent class size encountered %" Pd "\n", size); |
| 49 } | 49 } |
| 50 } | 50 } |
| 51 | 51 |
| 52 | 52 |
| 53 intptr_t RawObject::SizeFromClass() const { | 53 intptr_t RawObject::SizeFromClass() const { |
| 54 Isolate* isolate = Isolate::Current(); | 54 Isolate* isolate = Isolate::Current(); |
| 55 NoHandleScope no_handles(isolate); | 55 NoHandleScope no_handles(isolate); |
| 56 | 56 |
| 57 // Only reasonable to be called on heap objects. | 57 // Only reasonable to be called on heap objects. |
| 58 ASSERT(IsHeapObject()); | 58 ASSERT(IsHeapObject()); |
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| 245 break; | 245 break; |
| 246 } | 246 } |
| 247 #undef RAW_VISITPOINTERS | 247 #undef RAW_VISITPOINTERS |
| 248 case kFreeListElement: { | 248 case kFreeListElement: { |
| 249 uword addr = RawObject::ToAddr(const_cast<RawObject*>(this)); | 249 uword addr = RawObject::ToAddr(const_cast<RawObject*>(this)); |
| 250 FreeListElement* element = reinterpret_cast<FreeListElement*>(addr); | 250 FreeListElement* element = reinterpret_cast<FreeListElement*>(addr); |
| 251 size = element->Size(); | 251 size = element->Size(); |
| 252 break; | 252 break; |
| 253 } | 253 } |
| 254 default: | 254 default: |
| 255 OS::Print("Class Id: %"Pd"\n", class_id); | 255 OS::Print("Class Id: %" Pd "\n", class_id); |
| 256 UNREACHABLE(); | 256 UNREACHABLE(); |
| 257 break; | 257 break; |
| 258 } | 258 } |
| 259 } else { | 259 } else { |
| 260 RawInstance* raw_obj = reinterpret_cast<RawInstance*>(this); | 260 RawInstance* raw_obj = reinterpret_cast<RawInstance*>(this); |
| 261 size = RawInstance::VisitInstancePointers(raw_obj, visitor); | 261 size = RawInstance::VisitInstancePointers(raw_obj, visitor); |
| 262 } | 262 } |
| 263 | 263 |
| 264 ASSERT(size != 0); | 264 ASSERT(size != 0); |
| 265 ASSERT(size == Size()); | 265 ASSERT(size == Size()); |
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| 802 | 802 |
| 803 intptr_t RawMirrorReference::VisitMirrorReferencePointers( | 803 intptr_t RawMirrorReference::VisitMirrorReferencePointers( |
| 804 RawMirrorReference* raw_obj, ObjectPointerVisitor* visitor) { | 804 RawMirrorReference* raw_obj, ObjectPointerVisitor* visitor) { |
| 805 // Make sure that we got here with the tagged pointer as this. | 805 // Make sure that we got here with the tagged pointer as this. |
| 806 ASSERT(raw_obj->IsHeapObject()); | 806 ASSERT(raw_obj->IsHeapObject()); |
| 807 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 807 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 808 return MirrorReference::InstanceSize(); | 808 return MirrorReference::InstanceSize(); |
| 809 } | 809 } |
| 810 | 810 |
| 811 } // namespace dart | 811 } // namespace dart |
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