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Side by Side Diff: src/objects-visiting.h

Issue 3197010: Version 2.3.10... (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 10 years, 3 months ago
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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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