Version 2.3.10...

src/heap.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1395 matching lines @@
 
 
 bool Heap::CreateInitialMaps() {
   Object* obj = AllocatePartialMap(MAP_TYPE, Map::kSize);
   if (obj->IsFailure()) return false;
   // Map::cast cannot be used due to uninitialized map field.
   Map* new_meta_map = reinterpret_cast<Map*>(obj);
   set_meta_map(new_meta_map);
   new_meta_map->set_map(new_meta_map);
 
-  obj = AllocatePartialMap(FIXED_ARRAY_TYPE, FixedArray::kHeaderSize);
+  obj = AllocatePartialMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_fixed_array_map(Map::cast(obj));
 
   obj = AllocatePartialMap(ODDBALL_TYPE, Oddball::kSize);
   if (obj->IsFailure()) return false;
   set_oddball_map(Map::cast(obj));
 
   // Allocate the empty array.
   obj = AllocateEmptyFixedArray();
   if (obj->IsFailure()) return false;
@@ skipping 21 matching lines @@
   // Fix prototype object for existing maps.
   meta_map()->set_prototype(null_value());
   meta_map()->set_constructor(null_value());
 
   fixed_array_map()->set_prototype(null_value());
   fixed_array_map()->set_constructor(null_value());
 
   oddball_map()->set_prototype(null_value());
   oddball_map()->set_constructor(null_value());
 
-  obj = AllocateMap(FIXED_ARRAY_TYPE, FixedArray::kHeaderSize);
+  obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_fixed_cow_array_map(Map::cast(obj));
   ASSERT(fixed_array_map() != fixed_cow_array_map());
 
   obj = AllocateMap(HEAP_NUMBER_TYPE, HeapNumber::kSize);
   if (obj->IsFailure()) return false;
   set_heap_number_map(Map::cast(obj));
 
   obj = AllocateMap(PROXY_TYPE, Proxy::kSize);
   if (obj->IsFailure()) return false;
   set_proxy_map(Map::cast(obj));
 
   for (unsigned i = 0; i < ARRAY_SIZE(string_type_table); i++) {
     const StringTypeTable& entry = string_type_table[i];
     obj = AllocateMap(entry.type, entry.size);
     if (obj->IsFailure()) return false;
     roots_[entry.index] = Map::cast(obj);
   }
 
-  obj = AllocateMap(STRING_TYPE, SeqTwoByteString::kAlignedSize);
+  obj = AllocateMap(STRING_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_undetectable_string_map(Map::cast(obj));
   Map::cast(obj)->set_is_undetectable();
 
-  obj = AllocateMap(ASCII_STRING_TYPE, SeqAsciiString::kAlignedSize);
+  obj = AllocateMap(ASCII_STRING_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_undetectable_ascii_string_map(Map::cast(obj));
   Map::cast(obj)->set_is_undetectable();
 
-  obj = AllocateMap(BYTE_ARRAY_TYPE, ByteArray::kAlignedSize);
+  obj = AllocateMap(BYTE_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_byte_array_map(Map::cast(obj));
 
   obj = AllocateMap(PIXEL_ARRAY_TYPE, PixelArray::kAlignedSize);
   if (obj->IsFailure()) return false;
   set_pixel_array_map(Map::cast(obj));
 
   obj = AllocateMap(EXTERNAL_BYTE_ARRAY_TYPE,
                     ExternalArray::kAlignedSize);
   if (obj->IsFailure()) return false;
@@ skipping 22 matching lines @@
   obj = AllocateMap(EXTERNAL_UNSIGNED_INT_ARRAY_TYPE,
                     ExternalArray::kAlignedSize);
   if (obj->IsFailure()) return false;
   set_external_unsigned_int_array_map(Map::cast(obj));
 
   obj = AllocateMap(EXTERNAL_FLOAT_ARRAY_TYPE,
                     ExternalArray::kAlignedSize);
   if (obj->IsFailure()) return false;
   set_external_float_array_map(Map::cast(obj));
 
-  obj = AllocateMap(CODE_TYPE, Code::kHeaderSize);
+  obj = AllocateMap(CODE_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_code_map(Map::cast(obj));
 
   obj = AllocateMap(JS_GLOBAL_PROPERTY_CELL_TYPE,
                     JSGlobalPropertyCell::kSize);
   if (obj->IsFailure()) return false;
   set_global_property_cell_map(Map::cast(obj));
 
   obj = AllocateMap(FILLER_TYPE, kPointerSize);
   if (obj->IsFailure()) return false;
   set_one_pointer_filler_map(Map::cast(obj));
 
   obj = AllocateMap(FILLER_TYPE, 2 * kPointerSize);
   if (obj->IsFailure()) return false;
   set_two_pointer_filler_map(Map::cast(obj));
 
   for (unsigned i = 0; i < ARRAY_SIZE(struct_table); i++) {
     const StructTable& entry = struct_table[i];
     obj = AllocateMap(entry.type, entry.size);
     if (obj->IsFailure()) return false;
     roots_[entry.index] = Map::cast(obj);
   }
 
-  obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize);
+  obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_hash_table_map(Map::cast(obj));
 
-  obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize);
+  obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_context_map(Map::cast(obj));
 
-  obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize);
+  obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_catch_context_map(Map::cast(obj));
 
-  obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize);
+  obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel);
   if (obj->IsFailure()) return false;
   set_global_context_map(Map::cast(obj));
 
   obj = AllocateMap(SHARED_FUNCTION_INFO_TYPE,
                     SharedFunctionInfo::kAlignedSize);
   if (obj->IsFailure()) return false;
   set_shared_function_info_map(Map::cast(obj));
 
   ASSERT(!Heap::InNewSpace(Heap::empty_fixed_array()));
   return true;
@@ skipping 3281 matching lines @@
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 List<Object*> ExternalStringTable::new_space_strings_;
 List<Object*> ExternalStringTable::old_space_strings_;
 
 } }  // namespace v8::internal