[strong] class objects created in strong mode are frozen

src/full-codegen.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/ast.h"
 #include "src/ast-numbering.h"
 #include "src/code-factory.h"
 #include "src/codegen.h"
@@ skipping 1186 matching lines @@
       FeedbackVectorICSlot slot = FLAG_vector_stores
                                       ? lit->GetNthSlot(store_slot_index++)
                                       : FeedbackVectorICSlot::Invalid();
       EmitVariableAssignment(lit->class_variable_proxy()->var(),
                              Token::INIT_CONST, slot);
     }
 
     // Verify that compilation exactly consumed the number of store ic slots
     // that the ClassLiteral node had to offer.
     DCHECK(!FLAG_vector_stores || store_slot_index == lit->slot_count());
+
+    if (is_strong(language_mode())) {
+      // TODO(conradw): It would be more efficient to define the properties with
+      // the right attributes the first time round.
+      __ Push(result_register());
+      __ CallRuntime(Runtime::kObjectFreeze, 1);
+    }
   }
 
   context()->Plug(result_register());
 }
 
 
 void FullCodeGenerator::VisitNativeFunctionLiteral(
     NativeFunctionLiteral* expr) {
   Comment cmnt(masm_, "[ NativeFunctionLiteral");
 
@@ skipping 253 matching lines @@
   codegen_->PrepareForBailoutForId(exit_id_, NO_REGISTERS);
   codegen_->scope_ = saved_scope_;
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8