Separate stub types from property types.

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 4181 matching lines @@
     TO_BOOLEAN_IC,
     // No more than 16 kinds. The value currently encoded in four bits in
     // Flags.
 
     // Pseudo-kinds.
     REGEXP = BUILTIN,
     FIRST_IC_KIND = LOAD_IC,
     LAST_IC_KIND = TO_BOOLEAN_IC
   };
 
+  // Types of stubs.
+  enum StubType {
+    NORMAL,
+    FIELD,
+    CONSTANT_FUNCTION,
+    CALLBACKS,
+    INTERCEPTOR,
+    MAP_TRANSITION,
+    NONEXISTENT
+  };
+
   enum {
     NUMBER_OF_KINDS = LAST_IC_KIND + 1
   };
 
   typedef int ExtraICState;
 
   static const ExtraICState kNoExtraICState = 0;
 
 #ifdef ENABLE_DISASSEMBLER
   // Printing
   static const char* Kind2String(Kind kind);
   static const char* ICState2String(InlineCacheState state);
-  static const char* PropertyType2String(PropertyType type);
+  static const char* StubType2String(StubType type);
   static void PrintExtraICState(FILE* out, Kind kind, ExtraICState extra);
   inline void Disassemble(const char* name) {
     Disassemble(name, stdout);
   }
   void Disassemble(const char* name, FILE* out);
 #endif  // ENABLE_DISASSEMBLER
 
   // [instruction_size]: Size of the native instructions
   inline int instruction_size();
   inline void set_instruction_size(int value);
@@ skipping 29 matching lines @@
   inline int relocation_size();
 
   // [flags]: Various code flags.
   inline Flags flags();
   inline void set_flags(Flags flags);
 
   // [flags]: Access to specific code flags.
   inline Kind kind();
   inline InlineCacheState ic_state();  // Only valid for IC stubs.
   inline ExtraICState extra_ic_state();  // Only valid for IC stubs.
-  inline PropertyType type();  // Only valid for monomorphic IC stubs.
+  inline StubType type();  // Only valid for monomorphic IC stubs.
   inline int arguments_count();  // Only valid for call IC stubs.
 
   // Testers for IC stub kinds.
   inline bool is_inline_cache_stub();
   inline bool is_load_stub() { return kind() == LOAD_IC; }
   inline bool is_keyed_load_stub() { return kind() == KEYED_LOAD_IC; }
   inline bool is_store_stub() { return kind() == STORE_IC; }
   inline bool is_keyed_store_stub() { return kind() == KEYED_STORE_IC; }
   inline bool is_call_stub() { return kind() == CALL_IC; }
   inline bool is_keyed_call_stub() { return kind() == KEYED_CALL_IC; }
@@ skipping 122 matching lines @@
       StrictModeFlag strict_mode) {
     return ExtraICStateKeyedAccessGrowMode::encode(grow_mode) |
         ExtraICStateStrictMode::encode(strict_mode);
   }
 
   // Flags operations.
   static inline Flags ComputeFlags(
       Kind kind,
       InlineCacheState ic_state = UNINITIALIZED,
       ExtraICState extra_ic_state = kNoExtraICState,
-      PropertyType type = NORMAL,
+      StubType type = NORMAL,
       int argc = -1,
       InlineCacheHolderFlag holder = OWN_MAP);
 
   static inline Flags ComputeMonomorphicFlags(
       Kind kind,
-      PropertyType type,
+      StubType type,
       ExtraICState extra_ic_state = kNoExtraICState,
       InlineCacheHolderFlag holder = OWN_MAP,
       int argc = -1);
 
   static inline InlineCacheState ExtractICStateFromFlags(Flags flags);
-  static inline PropertyType ExtractTypeFromFlags(Flags flags);
+  static inline StubType ExtractTypeFromFlags(Flags flags);
   static inline Kind ExtractKindFromFlags(Flags flags);
   static inline InlineCacheHolderFlag ExtractCacheHolderFromFlags(Flags flags);
   static inline ExtraICState ExtractExtraICStateFromFlags(Flags flags);
   static inline int ExtractArgumentsCountFromFlags(Flags flags);
 
   static inline Flags RemoveTypeFromFlags(Flags flags);
 
   // Convert a target address into a code object.
   static inline Code* GetCodeFromTargetAddress(Address address);
 
@@ skipping 115 matching lines @@
   static const int kCompareOperationOffset = kCompareStateOffset + 1;
 
   static const int kAllowOSRAtLoopNestingLevelOffset = kFullCodeFlags + 1;
   static const int kProfilerTicksOffset = kAllowOSRAtLoopNestingLevelOffset + 1;
 
   static const int kSafepointTableOffsetOffset = kStackSlotsOffset + kIntSize;
   static const int kStackCheckTableOffsetOffset = kStackSlotsOffset + kIntSize;
 
   // Flags layout.  BitField<type, shift, size>.
   class ICStateField: public BitField<InlineCacheState, 0, 3> {};
-  class TypeField: public BitField<PropertyType, 3, 4> {};
-  class CacheHolderField: public BitField<InlineCacheHolderFlag, 7, 1> {};
-  class KindField: public BitField<Kind, 8, 4> {};
-  class ExtraICStateField: public BitField<ExtraICState, 12, 2> {};
-  class IsPregeneratedField: public BitField<bool, 14, 1> {};
+  class TypeField: public BitField<StubType, 3, 3> {};
+  class CacheHolderField: public BitField<InlineCacheHolderFlag, 6, 1> {};
+  class KindField: public BitField<Kind, 7, 4> {};
+  class ExtraICStateField: public BitField<ExtraICState, 11, 2> {};
+  class IsPregeneratedField: public BitField<bool, 13, 1> {};
 
   // Signed field cannot be encoded using the BitField class.
-  static const int kArgumentsCountShift = 15;
+  static const int kArgumentsCountShift = 14;
   static const int kArgumentsCountMask = ~((1 << kArgumentsCountShift) - 1);
 
   // This constant should be encodable in an ARM instruction.
   static const int kFlagsNotUsedInLookup =
       TypeField::kMask | CacheHolderField::kMask;
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(Code);
 };
 
@@ skipping 4220 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_