Introduce a lookup cache class in the runtime system and use it for...

src/heap-inl.h

 // Copyright 2006-2008 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 147 matching lines @@
   } else {
     int remaining = byte_size / kPointerSize;
     do {
       remaining--;
       *dst++ = *src++;
     } while (remaining > 0);
   }
 }
 
 
+Object* Heap::GetKeyedLookupCache() {
+  if (keyed_lookup_cache()->IsUndefined()) {
+    Object* obj = LookupCache::Allocate(4);
+    if (obj->IsFailure()) return obj;
+    keyed_lookup_cache_ = obj;
+  }

[bak, 2008/10/23 06:08:11]

Use keyed_lookup_cache() instead of keyed_lookup_cache_.

+  return keyed_lookup_cache_;
+}
+
+
+void Heap::SetKeyedLookupCache(LookupCache* cache) {
+  keyed_lookup_cache_ = cache;
+}
+
+
+void Heap::ClearKeyedLookupCache() {
+  keyed_lookup_cache_ = undefined_value();
+}
+
+
 #define GC_GREEDY_CHECK() \
   ASSERT(!FLAG_gc_greedy || v8::internal::Heap::GarbageCollectionGreedyCheck())
 
 // Do not use the identifier __object__ in a call to this macro.
 //
 // Call the function FUNCTION_CALL.  If it fails with a RetryAfterGC
 // failure, call the garbage collector and retry the function.  If the
 // garbage collector cannot reclaim the required space or the second
 // call fails with a RetryAfterGC failure, fail with out of memory.
 // If there is any other failure, return a null handle.  If either
@@ skipping 67 matching lines @@
   allocation_allowed_ = new_state;
   return old;
 }
 
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_