Refine object stats for FixedArrays.

src/objects.h

 // Copyright 2012 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 636 matching lines @@
 
 const int kExternalArrayTypeCount =
     LAST_EXTERNAL_ARRAY_TYPE - FIRST_EXTERNAL_ARRAY_TYPE + 1;
 
 STATIC_CHECK(JS_OBJECT_TYPE == Internals::kJSObjectType);
 STATIC_CHECK(FIRST_NONSTRING_TYPE == Internals::kFirstNonstringType);
 STATIC_CHECK(ODDBALL_TYPE == Internals::kOddballType);
 STATIC_CHECK(FOREIGN_TYPE == Internals::kForeignType);
 
 
+#define FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(V) \
+  V(FAST_ELEMENTS_SUB_TYPE)                   \
+  V(DICTIONARY_ELEMENTS_SUB_TYPE)             \
+  V(FAST_PROPERTIES_SUB_TYPE)                 \
+  V(DICTIONARY_PROPERTIES_SUB_TYPE)           \
+  V(MAP_CODE_CACHE_SUB_TYPE)                  \
+  V(SCOPE_INFO_SUB_TYPE)                      \
+  V(SYMBOL_TABLE_SUB_TYPE)                    \
+  V(DESCRIPTOR_ARRAY_SUB_TYPE)                \
+  V(TRANSITION_ARRAY_SUB_TYPE)
+
+enum FixedArraySubInstanceType {
+#define DEFINE_FIXED_ARRAY_SUB_INSTANCE_TYPE(name) name,
+  FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(DEFINE_FIXED_ARRAY_SUB_INSTANCE_TYPE)
+#undef DEFINE_FIXED_ARRAY_SUB_INSTANCE_TYPE
+  LAST_FIXED_ARRAY_SUB_TYPE = TRANSITION_ARRAY_SUB_TYPE
+};
+
+
 enum CompareResult {
   LESS      = -1,
   EQUAL     =  0,
   GREATER   =  1,
 
   NOT_EQUAL = GREATER
 };
 
 
 #define DECL_BOOLEAN_ACCESSORS(name)   \
@@ skipping 8212 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_