(early draft) Strict mode - throw exception on assignment to read only property.

src/x64/lithium-codegen-x64.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 2605 matching lines @@
     }
   }
 }
 
 
 void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) {
   ASSERT(ToRegister(instr->object()).is(rdx));
   ASSERT(ToRegister(instr->value()).is(rax));
 
   __ Move(rcx, instr->hydrogen()->name());
-  Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Initialize));
+  Handle<Code> ic(Builtins::builtin(
+      info_->is_strict() ? Builtins::StoreIC_Initialize_Strict
+                         : Builtins::StoreIC_Initialize));
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoStorePixelArrayElement(LStorePixelArrayElement* instr) {
   Register external_pointer = ToRegister(instr->external_pointer());
   Register key = ToRegister(instr->key());
   Register value = ToRegister(instr->value());
 
   {  // Clamp the value to [0..255].
@@ skipping 48 matching lines @@
     __ RecordWrite(elements, key, value);
   }
 }
 
 
 void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->object()).is(rdx));
   ASSERT(ToRegister(instr->key()).is(rcx));
   ASSERT(ToRegister(instr->value()).is(rax));
 
-  Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize));
+  Handle<Code> ic(Builtins::builtin(
+      info_->is_strict() ? Builtins::KeyedStoreIC_Initialize_Strict
+                         : Builtins::KeyedStoreIC_Initialize));
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) {
   class DeferredStringCharCodeAt: public LDeferredCode {
    public:
     DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr)
         : LDeferredCode(codegen), instr_(instr) { }
     virtual void Generate() { codegen()->DoDeferredStringCharCodeAt(instr_); }
@@ skipping 846 matching lines @@
   RegisterEnvironmentForDeoptimization(environment);
   ASSERT(osr_pc_offset_ == -1);
   osr_pc_offset_ = masm()->pc_offset();
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64