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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" |
| 11 #include "vm/visitor.h" | 11 #include "vm/visitor.h" |
| 12 | 12 |
| 13 | 13 |
| 14 namespace dart { | 14 namespace dart { |
| 15 | 15 |
| 16 void RawObject::Validate(Isolate* isolate) const { | 16 void RawObject::Validate(Isolate* isolate) const { |
| 17 if (Object::null_class_ == reinterpret_cast<RawClass*>(kHeapObjectTag)) { | 17 if (Object::null_class_ == reinterpret_cast<RawClass*>(kHeapObjectTag)) { |
| 18 // Validation relies on properly initialized class classes. Skip if the | 18 // Validation relies on properly initialized class classes. Skip if the |
| 19 // VM is still being initialized. | 19 // VM is still being initialized. |
| 20 return; | 20 return; |
| 21 } | 21 } |
| 22 // All Smi values are valid. | 22 // All Smi values are valid. |
| 23 if (!IsHeapObject()) { | 23 if (!IsHeapObject()) { |
| 24 return; | 24 return; |
| 25 } | 25 } |
| 26 // Validate that the tags_ field is sensible. | 26 // Validate that the tags_ field is sensible. |
| 27 uword tags = ptr()->tags_; | 27 uword tags = ptr()->tags_; |
| 28 intptr_t reserved = ReservedBits::decode(tags); | 28 intptr_t reserved = ReservedBits::decode(tags); |
| 29 if (reserved != 0) { | 29 if (reserved != 0) { |
| 30 FATAL1("Invalid tags field encountered %#lx\n", tags); | 30 FATAL1("Invalid tags field encountered %#"Px"\n", tags); |
| 31 } | 31 } |
| 32 intptr_t class_id = ClassIdTag::decode(tags); | 32 intptr_t class_id = ClassIdTag::decode(tags); |
| 33 if (!isolate->class_table()->IsValidIndex(class_id)) { | 33 if (!isolate->class_table()->IsValidIndex(class_id)) { |
| 34 FATAL1("Invalid class id encountered %d\n", class_id); | 34 FATAL1("Invalid class id encountered %"Pd"\n", class_id); |
| 35 } | 35 } |
| 36 intptr_t size = SizeTag::decode(tags); | 36 intptr_t size = SizeTag::decode(tags); |
| 37 if (size != 0 && size != SizeFromClass()) { | 37 if (size != 0 && size != SizeFromClass()) { |
| 38 FATAL1("Inconsistent class size encountered %d\n", size); | 38 FATAL1("Inconsistent class size encountered %"Pd"\n", size); |
| 39 } | 39 } |
| 40 } | 40 } |
| 41 | 41 |
| 42 | 42 |
| 43 intptr_t RawObject::SizeFromClass() const { | 43 intptr_t RawObject::SizeFromClass() const { |
| 44 Isolate* isolate = Isolate::Current(); | 44 Isolate* isolate = Isolate::Current(); |
| 45 NoHandleScope no_handles(isolate); | 45 NoHandleScope no_handles(isolate); |
| 46 | 46 |
| 47 // Only reasonable to be called on heap objects. | 47 // Only reasonable to be called on heap objects. |
| 48 ASSERT(IsHeapObject()); | 48 ASSERT(IsHeapObject()); |
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| 281 CLASS_LIST_NO_OBJECT(RAW_VISITPOINTERS) | 281 CLASS_LIST_NO_OBJECT(RAW_VISITPOINTERS) |
| 282 #undef RAW_VISITPOINTERS | 282 #undef RAW_VISITPOINTERS |
| 283 case kFreeListElement: { | 283 case kFreeListElement: { |
| 284 ASSERT(FreeBit::decode(ptr()->tags_)); | 284 ASSERT(FreeBit::decode(ptr()->tags_)); |
| 285 uword addr = RawObject::ToAddr(const_cast<RawObject*>(this)); | 285 uword addr = RawObject::ToAddr(const_cast<RawObject*>(this)); |
| 286 FreeListElement* element = reinterpret_cast<FreeListElement*>(addr); | 286 FreeListElement* element = reinterpret_cast<FreeListElement*>(addr); |
| 287 size = element->Size(); | 287 size = element->Size(); |
| 288 break; | 288 break; |
| 289 } | 289 } |
| 290 default: | 290 default: |
| 291 OS::Print("Class Id: %d\n", class_id); | 291 OS::Print("Class Id: %"Pd"\n", class_id); |
| 292 UNREACHABLE(); | 292 UNREACHABLE(); |
| 293 break; | 293 break; |
| 294 } | 294 } |
| 295 } else { | 295 } else { |
| 296 RawClass* raw_class = visitor->isolate()->class_table()->At(class_id); | 296 RawClass* raw_class = visitor->isolate()->class_table()->At(class_id); |
| 297 if (Class::IsSignatureClass(raw_class)) { | 297 if (Class::IsSignatureClass(raw_class)) { |
| 298 RawClosure* raw_obj = reinterpret_cast<RawClosure*>(this); | 298 RawClosure* raw_obj = reinterpret_cast<RawClosure*>(this); |
| 299 size = RawClosure::VisitClosurePointers(raw_obj, visitor); | 299 size = RawClosure::VisitClosurePointers(raw_obj, visitor); |
| 300 } else { | 300 } else { |
| 301 RawInstance* raw_obj = reinterpret_cast<RawInstance*>(this); | 301 RawInstance* raw_obj = reinterpret_cast<RawInstance*>(this); |
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| 978 | 978 |
| 979 intptr_t RawWeakProperty::VisitWeakPropertyPointers( | 979 intptr_t RawWeakProperty::VisitWeakPropertyPointers( |
| 980 RawWeakProperty* raw_obj, ObjectPointerVisitor* visitor) { | 980 RawWeakProperty* raw_obj, ObjectPointerVisitor* visitor) { |
| 981 // Make sure that we got here with the tagged pointer as this. | 981 // Make sure that we got here with the tagged pointer as this. |
| 982 ASSERT(raw_obj->IsHeapObject()); | 982 ASSERT(raw_obj->IsHeapObject()); |
| 983 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); | 983 visitor->VisitPointers(raw_obj->from(), raw_obj->to()); |
| 984 return WeakProperty::InstanceSize(); | 984 return WeakProperty::InstanceSize(); |
| 985 } | 985 } |
| 986 | 986 |
| 987 } // namespace dart | 987 } // namespace dart |
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