Strict mode poison pills for function.caller and function.arguments

src/factory.cc

 // Copyright 2010 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 333 matching lines @@
                                             pretenure),
                      JSFunction);
 }
 
 
 Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
     Handle<SharedFunctionInfo> function_info,
     Handle<Context> context,
     PretenureFlag pretenure) {
   Handle<JSFunction> result = BaseNewFunctionFromSharedFunctionInfo(
-      function_info, Top::function_map(), pretenure);
+      function_info,
+      function_info->strict_mode()
+          ? Top::strict_mode_function_map()
+          : Top::function_map(),
+      pretenure);
+
   result->set_context(*context);
   int number_of_literals = function_info->num_literals();
   Handle<FixedArray> literals =
       Factory::NewFixedArray(number_of_literals, pretenure);
   if (number_of_literals > 0) {
     // Store the object, regexp and array functions in the literals
     // array prefix.  These functions will be used when creating
     // object, regexp and array literals in this function.
     literals->set(JSFunction::kLiteralGlobalContextIndex,
                   context->global_context());
@@ skipping 212 matching lines @@
   SetPrototypeProperty(function, prototype);
   // Currently safe because it is only invoked from Genesis.
   SetLocalPropertyNoThrow(
       prototype, Factory::constructor_symbol(), function, DONT_ENUM);
   return function;
 }
 
 
 Handle<JSFunction> Factory::NewFunctionWithoutPrototype(Handle<String> name,
                                                         Handle<Code> code) {
-  Handle<JSFunction> function = NewFunctionWithoutPrototype(name);
+  Handle<JSFunction> function = NewFunctionWithoutPrototype(name,
+                                                            kNonStrictMode);
   function->shared()->set_code(*code);
   function->set_code(*code);
   ASSERT(!function->has_initial_map());
   ASSERT(!function->has_prototype());
   return function;
 }
 
 
 Handle<Code> Factory::NewCode(const CodeDesc& desc,
                               Code::Flags flags,
@@ skipping 204 matching lines @@
 
 Handle<JSFunction> Factory::NewFunction(Handle<String> name,
                                         Handle<Object> prototype) {
   Handle<JSFunction> fun = NewFunctionHelper(name, prototype);
   fun->set_context(Top::context()->global_context());
   return fun;
 }
 
 
 Handle<JSFunction> Factory::NewFunctionWithoutPrototypeHelper(
-    Handle<String> name) {
+    Handle<String> name,
+    StrictModeFlag strict_mode) {
   Handle<SharedFunctionInfo> function_share = NewSharedFunctionInfo(name);
+  Handle<Map> map = strict_mode == kStrictMode
+      ? Top::strict_mode_function_without_prototype_map()
+      : Top::function_without_prototype_map();
   CALL_HEAP_FUNCTION(Heap::AllocateFunction(
-                         *Top::function_without_prototype_map(),
+                         *map,
                          *function_share,
                          *the_hole_value()),
                      JSFunction);
 }
 
 
-Handle<JSFunction> Factory::NewFunctionWithoutPrototype(Handle<String> name) {
-  Handle<JSFunction> fun = NewFunctionWithoutPrototypeHelper(name);
+Handle<JSFunction> Factory::NewFunctionWithoutPrototype(
+    Handle<String> name,
+    StrictModeFlag strict_mode) {
+  Handle<JSFunction> fun = NewFunctionWithoutPrototypeHelper(name, strict_mode);
   fun->set_context(Top::context()->global_context());
   return fun;
 }
 
 
 Handle<Object> Factory::ToObject(Handle<Object> object) {
   CALL_HEAP_FUNCTION(object->ToObject(), Object);
 }
 
 
@@ skipping 235 matching lines @@
     Execution::ConfigureInstance(instance,
                                  instance_template,
                                  pending_exception);
   } else {
     *pending_exception = false;
   }
 }
 
 
 } }  // namespace v8::internal