Speedup JSReceiver::GetKeys

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 3514 matching lines @@
   // Attempt to shrink hash table after removal of key.
   MUST_USE_RESULT static inline Handle<ObjectHashTable> Shrink(
       Handle<ObjectHashTable> table,
       Handle<Object> key);
 
   // Looks up the value associated with the given key. The hole value is
   // returned in case the key is not present.
   Object* Lookup(Handle<Object> key);
   Object* Lookup(Handle<Object> key, int32_t hash);
   Object* Lookup(Isolate* isolate, Handle<Object> key, int32_t hash);
+  bool HasKey(Isolate* isolate, Handle<Object> key);
 
   // Adds (or overwrites) the value associated with the given key.
   static Handle<ObjectHashTable> Put(Handle<ObjectHashTable> table,
                                      Handle<Object> key,
                                      Handle<Object> value);
   static Handle<ObjectHashTable> Put(Handle<ObjectHashTable> table,
                                      Handle<Object> key, Handle<Object> value,
                                      int32_t hash);
+  static Handle<ObjectHashTable> Put(Isolate* isolate,
+                                     Handle<ObjectHashTable> table,
+                                     Handle<Object> key, Handle<Object> value);
+  static Handle<ObjectHashTable> Put(Isolate* isolate,
+                                     Handle<ObjectHashTable> table,
+                                     Handle<Object> key, Handle<Object> value,
+                                     int32_t hash);
 
   // Returns an ObjectHashTable (possibly |table|) where |key| has been removed.
   static Handle<ObjectHashTable> Remove(Handle<ObjectHashTable> table,
                                         Handle<Object> key,
                                         bool* was_present);
   static Handle<ObjectHashTable> Remove(Handle<ObjectHashTable> table,
                                         Handle<Object> key, bool* was_present,
                                         int32_t hash);
 
  protected:
@@ skipping 6861 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_