Implement Object.prototype.hasOwnProperty in generated code.

src/hydrogen.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 6125 matching lines @@
   Drop(1);
   return ast_context()->ReturnInstruction(result, call->id());
 }
 
 
 void HGraphBuilder::GenerateMathSqrt(CallRuntime* call) {
   return Bailout("inlined runtime function: MathSqrt");
 }
 
 
+void HGraphBuilder::GenerateHasOwnProperty(CallRuntime* call) {
+  ASSERT_EQ(2, call->arguments()->length());
+  CHECK_ALIVE(VisitArgumentList(call->arguments()));
+  HValue* context = environment()->LookupContext();
+  HCallStub* result = new(zone()) HCallStub(

[Mads Ager (chromium), 2011/07/15 09:04:45]

I would prefer

HCallStub* result =
    new(zone()) HCallStub(context, CodeStub::HasOwnProperty, 2);

Which also fits the style in the methods above.

+      context, CodeStub::HasOwnProperty, 2);
+  Drop(2);
+  ast_context()->ReturnInstruction(result, call->id());
+}
+
+
 // Check whether two RegExps are equivalent
 void HGraphBuilder::GenerateIsRegExpEquivalent(CallRuntime* call) {
   return Bailout("inlined runtime function: IsRegExpEquivalent");
 }
 
 
 void HGraphBuilder::GenerateGetCachedArrayIndex(CallRuntime* call) {
   ASSERT(call->arguments()->length() == 1);
   CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));
   HValue* value = Pop();
@@ skipping 536 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify();
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal