Limit initial size of hidden properties and store identity hashes inline.

test/cctest/test-dictionary.cc

 // Copyright 2011 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 87 matching lines @@
   }
 }
 
 
 #ifdef DEBUG
 TEST(ObjectHashSetCausesGC) {
   v8::HandleScope scope;
   LocalContext context;
   Handle<ObjectHashSet> table = FACTORY->NewObjectHashSet(1);
   Handle<JSObject> key = FACTORY->NewJSArray(0);
+  v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key);
+
+  // Force allocation of hash table backing store for hidden properties.
+  key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1"));
+  key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2"));
+  key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3"));
 
   // Simulate a full heap so that generating an identity hash code
   // in subsequent calls will request GC.
   FLAG_gc_interval = 0;
 
   // Calling Contains() should not cause GC ever.
   CHECK(!table->Contains(*key));
 
   // Calling Remove() should not cause GC ever.
   CHECK(!table->Remove(*key)->IsFailure());
 
   // Calling Add() should request GC by returning a failure.
   CHECK(table->Add(*key)->IsRetryAfterGC());
 }
 #endif
 
 
 #ifdef DEBUG
 TEST(ObjectHashTableCausesGC) {
   v8::HandleScope scope;
   LocalContext context;
   Handle<ObjectHashTable> table = FACTORY->NewObjectHashTable(1);
   Handle<JSObject> key = FACTORY->NewJSArray(0);
+  v8::Handle<v8::Object> key_obj = v8::Utils::ToLocal(key);
+
+  // Force allocation of hash table backing store for hidden properties.
+  key_obj->SetHiddenValue(v8_str("key 1"), v8_str("val 1"));
+  key_obj->SetHiddenValue(v8_str("key 2"), v8_str("val 2"));
+  key_obj->SetHiddenValue(v8_str("key 3"), v8_str("val 3"));
 
   // Simulate a full heap so that generating an identity hash code
   // in subsequent calls will request GC.
   FLAG_gc_interval = 0;
 
   // Calling Lookup() should not cause GC ever.
   CHECK(table->Lookup(*key)->IsTheHole());
 
   // Calling Put() should request GC by returning a failure.
   CHECK(table->Put(*key, *key)->IsRetryAfterGC());
 }
 #endif