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

src/builtins.cc

Index: src/builtins.cc
diff --git a/src/builtins.cc b/src/builtins.cc
index 8fdc1b138251be068c269552be82ca538a6236c4..01e8deb4e140d00566d2536433b941b2bc5eb542 100644
--- a/src/builtins.cc
+++ b/src/builtins.cc
@@ -1328,12 +1328,12 @@ static void Generate_StoreIC_Normal_Strict(MacroAssembler* masm) {
 
 
 static void Generate_StoreIC_Megamorphic(MacroAssembler* masm) {
-  StoreIC::GenerateMegamorphic(masm, StoreIC::kStoreICNonStrict);
+  StoreIC::GenerateMegamorphic(masm, kNonStrictMode);
 }
 
 
 static void Generate_StoreIC_Megamorphic_Strict(MacroAssembler* masm) {
-  StoreIC::GenerateMegamorphic(masm, StoreIC::kStoreICStrict);
+  StoreIC::GenerateMegamorphic(masm, kStrictMode);
 }
 
 
@@ -1348,17 +1348,22 @@ static void Generate_StoreIC_ArrayLength_Strict(MacroAssembler* masm) {
 
 
 static void Generate_StoreIC_GlobalProxy(MacroAssembler* masm) {
-  StoreIC::GenerateGlobalProxy(masm);
+  StoreIC::GenerateGlobalProxy(masm, kNonStrictMode);
 }
 
 
 static void Generate_StoreIC_GlobalProxy_Strict(MacroAssembler* masm) {
-  StoreIC::GenerateGlobalProxy(masm);
+  StoreIC::GenerateGlobalProxy(masm, kStrictMode);
 }
 
 
 static void Generate_KeyedStoreIC_Generic(MacroAssembler* masm) {
-  KeyedStoreIC::GenerateGeneric(masm);
+  KeyedStoreIC::GenerateGeneric(masm, kNonStrictMode);
+}
+
+
+static void Generate_KeyedStoreIC_Generic_Strict(MacroAssembler* masm) {
+  KeyedStoreIC::GenerateGeneric(masm, kStrictMode);
 }
 
 
@@ -1372,6 +1377,11 @@ static void Generate_KeyedStoreIC_Initialize(MacroAssembler* masm) {
 }
 
 
+static void Generate_KeyedStoreIC_Initialize_Strict(MacroAssembler* masm) {
+  KeyedStoreIC::GenerateInitialize(masm);
+}
+
+
 #ifdef ENABLE_DEBUGGER_SUPPORT
 static void Generate_LoadIC_DebugBreak(MacroAssembler* masm) {
   Debug::GenerateLoadICDebugBreak(masm);