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| 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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| 192 StaticVisitor::VisitPointers(start_slot, end_slot); | 192 StaticVisitor::VisitPointers(start_slot, end_slot); |
| 193 } | 193 } |
| 194 }; | 194 }; |
| 195 | 195 |
| 196 | 196 |
| 197 template<typename StaticVisitor, typename BodyDescriptor, typename ReturnType> | 197 template<typename StaticVisitor, typename BodyDescriptor, typename ReturnType> |
| 198 class FlexibleBodyVisitor : public BodyVisitorBase<StaticVisitor> { | 198 class FlexibleBodyVisitor : public BodyVisitorBase<StaticVisitor> { |
| 199 public: | 199 public: |
| 200 static inline ReturnType Visit(Map* map, HeapObject* object) { | 200 static inline ReturnType Visit(Map* map, HeapObject* object) { |
| 201 int object_size = BodyDescriptor::SizeOf(map, object); | 201 int object_size = BodyDescriptor::SizeOf(map, object); |
| 202 IteratePointers(object, BodyDescriptor::kStartOffset, object_size); | 202 BodyVisitorBase<StaticVisitor>::IteratePointers( |
| 203 object, BodyDescriptor::kStartOffset, object_size); |
| 203 return static_cast<ReturnType>(object_size); | 204 return static_cast<ReturnType>(object_size); |
| 204 } | 205 } |
| 205 | 206 |
| 206 template<int object_size> | 207 template<int object_size> |
| 207 static inline ReturnType VisitSpecialized(Map* map, HeapObject* object) { | 208 static inline ReturnType VisitSpecialized(Map* map, HeapObject* object) { |
| 208 ASSERT(BodyDescriptor::SizeOf(map, object) == object_size); | 209 ASSERT(BodyDescriptor::SizeOf(map, object) == object_size); |
| 209 IteratePointers(object, BodyDescriptor::kStartOffset, object_size); | 210 BodyVisitorBase<StaticVisitor>::IteratePointers( |
| 211 object, BodyDescriptor::kStartOffset, object_size); |
| 210 return static_cast<ReturnType>(object_size); | 212 return static_cast<ReturnType>(object_size); |
| 211 } | 213 } |
| 212 }; | 214 }; |
| 213 | 215 |
| 214 | 216 |
| 215 template<typename StaticVisitor, typename BodyDescriptor, typename ReturnType> | 217 template<typename StaticVisitor, typename BodyDescriptor, typename ReturnType> |
| 216 class FixedBodyVisitor : public BodyVisitorBase<StaticVisitor> { | 218 class FixedBodyVisitor : public BodyVisitorBase<StaticVisitor> { |
| 217 public: | 219 public: |
| 218 static inline ReturnType Visit(Map* map, HeapObject* object) { | 220 static inline ReturnType Visit(Map* map, HeapObject* object) { |
| 219 IteratePointers(object, | 221 BodyVisitorBase<StaticVisitor>::IteratePointers( |
| 220 BodyDescriptor::kStartOffset, | 222 object, BodyDescriptor::kStartOffset, BodyDescriptor::kEndOffset); |
| 221 BodyDescriptor::kEndOffset); | |
| 222 return static_cast<ReturnType>(BodyDescriptor::kSize); | 223 return static_cast<ReturnType>(BodyDescriptor::kSize); |
| 223 } | 224 } |
| 224 }; | 225 }; |
| 225 | 226 |
| 226 | 227 |
| 227 // Base class for visitors used for a linear new space iteration. | 228 // Base class for visitors used for a linear new space iteration. |
| 228 // IterateBody returns size of visited object. | 229 // IterateBody returns size of visited object. |
| 229 // Certain types of objects (i.e. Code objects) are not handled | 230 // Certain types of objects (i.e. Code objects) are not handled |
| 230 // by dispatch table of this visitor because they cannot appear | 231 // by dispatch table of this visitor because they cannot appear |
| 231 // in the new space. | 232 // in the new space. |
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| 379 | 380 |
| 380 for (; !it.done(); it.next()) { | 381 for (; !it.done(); it.next()) { |
| 381 it.rinfo()->template Visit<StaticVisitor>(); | 382 it.rinfo()->template Visit<StaticVisitor>(); |
| 382 } | 383 } |
| 383 } | 384 } |
| 384 | 385 |
| 385 | 386 |
| 386 } } // namespace v8::internal | 387 } } // namespace v8::internal |
| 387 | 388 |
| 388 #endif // V8_OBJECTS_ITERATION_H_ | 389 #endif // V8_OBJECTS_ITERATION_H_ |
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