Introduce LanguageMode, drop StrictMode.

src/runtime/runtime-object.cc

 // Copyright 2014 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/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug.h"
 #include "src/runtime/runtime.h"
@@ skipping 81 matching lines @@
   } else {
     return Object::GetProperty(object, name);
   }
 }
 
 
 MaybeHandle<Object> Runtime::SetObjectProperty(Isolate* isolate,
                                                Handle<Object> object,
                                                Handle<Object> key,
                                                Handle<Object> value,
-                                               StrictMode strict_mode) {
+                                               LanguageMode language_mode) {
   if (object->IsUndefined() || object->IsNull()) {
     Handle<Object> args[2] = {key, object};
     THROW_NEW_ERROR(isolate, NewTypeError("non_object_property_store",
                                           HandleVector(args, 2)),
                     Object);
   }
 
   if (object->IsJSProxy()) {
     Handle<Object> name_object;
     if (key->IsSymbol()) {
       name_object = key;
     } else {
       ASSIGN_RETURN_ON_EXCEPTION(isolate, name_object,
                                  Execution::ToString(isolate, key), Object);
     }
     Handle<Name> name = Handle<Name>::cast(name_object);
     return Object::SetProperty(Handle<JSProxy>::cast(object), name, value,
-                               strict_mode);
+                               language_mode);
   }
 
   // Check if the given key is an array index.
   uint32_t index;
   if (key->ToArrayIndex(&index)) {
     // TODO(verwaest): Support non-JSObject receivers.
     if (!object->IsJSObject()) return value;
     Handle<JSObject> js_object = Handle<JSObject>::cast(object);
 
     // In Firefox/SpiderMonkey, Safari and Opera you can access the characters
@@ skipping 10 matching lines @@
     JSObject::ValidateElements(js_object);
     if (js_object->HasExternalArrayElements() ||
         js_object->HasFixedTypedArrayElements()) {
       if (!value->IsNumber() && !value->IsUndefined()) {
         ASSIGN_RETURN_ON_EXCEPTION(isolate, value,
                                    Execution::ToNumber(isolate, value), Object);
       }
     }
 
     MaybeHandle<Object> result = JSObject::SetElement(
-        js_object, index, value, NONE, strict_mode, true, SET_PROPERTY);
+        js_object, index, value, NONE, language_mode, true, SET_PROPERTY);
     JSObject::ValidateElements(js_object);
 
     return result.is_null() ? result : value;
   }
 
   if (key->IsName()) {
     Handle<Name> name = Handle<Name>::cast(key);
     if (name->AsArrayIndex(&index)) {
       // TODO(verwaest): Support non-JSObject receivers.
       if (!object->IsJSObject()) return value;
       Handle<JSObject> js_object = Handle<JSObject>::cast(object);
       if (js_object->HasExternalArrayElements()) {
         if (!value->IsNumber() && !value->IsUndefined()) {
           ASSIGN_RETURN_ON_EXCEPTION(
               isolate, value, Execution::ToNumber(isolate, value), Object);
         }
       }
-      return JSObject::SetElement(js_object, index, value, NONE, strict_mode,
+      return JSObject::SetElement(js_object, index, value, NONE, language_mode,
                                   true, SET_PROPERTY);
     } else {
       if (name->IsString()) name = String::Flatten(Handle<String>::cast(name));
-      return Object::SetProperty(object, name, value, strict_mode);
+      return Object::SetProperty(object, name, value, language_mode);
     }
   }
 
   // Call-back into JavaScript to convert the key to a string.
   Handle<Object> converted;
   ASSIGN_RETURN_ON_EXCEPTION(isolate, converted,
                              Execution::ToString(isolate, key), Object);
   Handle<String> name = Handle<String>::cast(converted);
 
   if (name->AsArrayIndex(&index)) {
     // TODO(verwaest): Support non-JSObject receivers.
     if (!object->IsJSObject()) return value;
     Handle<JSObject> js_object = Handle<JSObject>::cast(object);
-    return JSObject::SetElement(js_object, index, value, NONE, strict_mode,
+    return JSObject::SetElement(js_object, index, value, NONE, language_mode,
                                 true, SET_PROPERTY);
   }
-  return Object::SetProperty(object, name, value, strict_mode);
+  return Object::SetProperty(object, name, value, language_mode);
 }
 
 
 MaybeHandle<Object> Runtime::DefineObjectProperty(Handle<JSObject> js_object,
                                                   Handle<Object> key,
                                                   Handle<Object> value,
                                                   PropertyAttributes attr) {
   Isolate* isolate = js_object->GetIsolate();
   // Check if the given key is an array index.
   uint32_t index;
@@ skipping 487 matching lines @@
 }
 
 
 RUNTIME_FUNCTION(Runtime_SetProperty) {
   HandleScope scope(isolate);
   RUNTIME_ASSERT(args.length() == 4);
 
   CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, key, 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 2);
-  CONVERT_STRICT_MODE_ARG_CHECKED(strict_mode_arg, 3);
-  StrictMode strict_mode = strict_mode_arg;
+  CONVERT_LANGUAGE_MODE_ARG_CHECKED(language_mode_arg, 3);
+  LanguageMode language_mode = language_mode_arg;
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result,
-      Runtime::SetObjectProperty(isolate, object, key, value, strict_mode));
+      Runtime::SetObjectProperty(isolate, object, key, value, language_mode));
   return *result;
 }
 
 
 // Adds an element to an array.
 // This is used to create an indexed data property into an array.
 RUNTIME_FUNCTION(Runtime_AddElement) {
   HandleScope scope(isolate);
   RUNTIME_ASSERT(args.length() == 4);
 
@@ skipping 16 matching lines @@
                                             SLOPPY, false, DEFINE_PROPERTY));
   return *result;
 }
 
 
 RUNTIME_FUNCTION(Runtime_DeleteProperty) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 3);
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, key, 1);
-  CONVERT_STRICT_MODE_ARG_CHECKED(strict_mode, 2);
+  CONVERT_LANGUAGE_MODE_ARG_CHECKED(language_mode, 2);
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result, JSReceiver::DeleteProperty(object, key, strict_mode));
+      isolate, result, JSReceiver::DeleteProperty(object, key, language_mode));
   return *result;
 }
 
 
 static Object* HasOwnPropertyImplementation(Isolate* isolate,
                                             Handle<JSObject> object,
                                             Handle<Name> key) {
   Maybe<bool> maybe = JSReceiver::HasOwnProperty(object, key);
   if (!maybe.has_value) return isolate->heap()->exception();
   if (maybe.value) return isolate->heap()->true_value();
@@ skipping 855 matching lines @@
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, setter, 2);
 
   RETURN_FAILURE_ON_EXCEPTION(
       isolate,
       JSObject::DefineAccessor(object, name, isolate->factory()->null_value(),
                                setter, NONE));
   return isolate->heap()->undefined_value();
 }
 }
 }  // namespace v8::internal