JSArray::SetContent() handlified.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/206223003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/elements.cc

@@ -1975,12 +1975,11 @@ MUST_USE_RESULT Handle<Object> ElementsAccessorBase<ElementsAccessorSubclass,
     }
   }
 
-  Factory* factory = isolate->factory();
   // Fall-back case: The new length is not a number so make the array
   // size one and set only element to length.
-  Handle<FixedArray> new_backing_store = factory->NewFixedArray(1);
+  Handle<FixedArray> new_backing_store = isolate->factory()->NewFixedArray(1);
   new_backing_store->set(0, *length);
-  factory->SetContent(array, new_backing_store);
+  JSArray::SetContent(array, new_backing_store);
   return array;
 }
 

src/factory.cc

@@ -1493,14 +1493,6 @@ void Factory::SetElementsCapacityAndLength(Handle<JSArray> array,
 }
 
 
-void Factory::SetContent(Handle<JSArray> array,
-                         Handle<FixedArrayBase> elements) {
-  CALL_HEAP_FUNCTION_VOID(
-      isolate(),
-      array->SetContent(*elements));
-}
-
-
 Handle<JSGeneratorObject> Factory::NewJSGeneratorObject(
     Handle<JSFunction> function) {
   ASSERT(function->shared()->is_generator());

src/factory.h

@@ -374,8 +374,6 @@ class Factory {
                                     int capacity,
                                     int length);
 
-  void SetContent(Handle<JSArray> array, Handle<FixedArrayBase> elements);
-
   Handle<JSGeneratorObject> NewJSGeneratorObject(Handle<JSFunction> function);
 
   Handle<JSArrayBuffer> NewJSArrayBuffer();

src/objects-inl.h

@@ -1031,7 +1031,6 @@ bool Object::IsNaN() {
 }
 
 
-// static
 Handle<Object> Object::ToSmi(Isolate* isolate, Handle<Object> object) {
   if (object->IsSmi()) return object;
   if (object->IsHeapNumber()) {
@@ -1662,6 +1661,18 @@ MaybeObject* JSObject::EnsureCanContainElements(Object** objects,
 }
 
 
+// TODO(ishell): Temporary wrapper until handlified.
+void JSObject::EnsureCanContainElements(Handle<JSObject> object,
+                                        Handle<FixedArrayBase> elements,
+                                        uint32_t length,
+                                        EnsureElementsMode mode) {
+  CALL_HEAP_FUNCTION_VOID(object->GetIsolate(),
+                          object->EnsureCanContainElements(*elements,
+                                                           length,
+                                                           mode));
+}
+
+
 MaybeObject* JSObject::EnsureCanContainElements(FixedArrayBase* elements,
                                                 uint32_t length,
                                                 EnsureElementsMode mode) {
@@ -6569,19 +6580,19 @@ bool JSArray::AllowsSetElementsLength() {
 }
 
 
-MaybeObject* JSArray::SetContent(FixedArrayBase* storage) {
-  MaybeObject* maybe_result = EnsureCanContainElements(
-      storage, storage->length(), ALLOW_COPIED_DOUBLE_ELEMENTS);
-  if (maybe_result->IsFailure()) return maybe_result;
-  ASSERT((storage->map() == GetHeap()->fixed_double_array_map() &&
-          IsFastDoubleElementsKind(GetElementsKind())) ||
-         ((storage->map() != GetHeap()->fixed_double_array_map()) &&
-          (IsFastObjectElementsKind(GetElementsKind()) ||
-           (IsFastSmiElementsKind(GetElementsKind()) &&
-            FixedArray::cast(storage)->ContainsOnlySmisOrHoles()))));
-  set_elements(storage);
-  set_length(Smi::FromInt(storage->length()));
-  return this;
+void JSArray::SetContent(Handle<JSArray> array,
+                         Handle<FixedArrayBase> storage) {
+  EnsureCanContainElements(array, storage, storage->length(),
+                           ALLOW_COPIED_DOUBLE_ELEMENTS);
+
+  ASSERT((storage->map() == array->GetHeap()->fixed_double_array_map() &&
+          IsFastDoubleElementsKind(array->GetElementsKind())) ||
+         ((storage->map() != array->GetHeap()->fixed_double_array_map()) &&
+          (IsFastObjectElementsKind(array->GetElementsKind()) ||
+           (IsFastSmiElementsKind(array->GetElementsKind()) &&
+            Handle<FixedArray>::cast(storage)->ContainsOnlySmisOrHoles()))));
+  array->set_elements(*storage);
+  array->set_length(Smi::FromInt(storage->length()));
 }
 
 

src/objects.h

@@ -2424,6 +2424,11 @@ class JSObject: public JSReceiver {
       Object** elements,
       uint32_t count,
       EnsureElementsMode mode);
+  static inline void EnsureCanContainElements(
+      Handle<JSObject> object,
+      Handle<FixedArrayBase> elements,
+      uint32_t length,
+      EnsureElementsMode mode);
   MUST_USE_RESULT inline MaybeObject* EnsureCanContainElements(
       FixedArrayBase* elements,
       uint32_t length,
@@ -10032,7 +10037,8 @@ class JSArray: public JSObject {
                                           Handle<Object> length);
 
   // Set the content of the array to the content of storage.
-  MUST_USE_RESULT inline MaybeObject* SetContent(FixedArrayBase* storage);
+  static inline void SetContent(Handle<JSArray> array,
+                                Handle<FixedArrayBase> storage);
 
   // Casting.
   static inline JSArray* cast(Object* obj);

src/runtime.cc

@@ -3304,8 +3304,7 @@ class FixedArrayBuilder {
   }
 
   Handle<JSArray> ToJSArray(Handle<JSArray> target_array) {
-    Factory* factory = target_array->GetIsolate()->factory();
-    factory->SetContent(target_array, array_);
+    JSArray::SetContent(target_array, array_);
     target_array->set_length(Smi::FromInt(length_));
     return target_array;
   }
@@ -4581,7 +4580,7 @@ static MaybeObject* SearchRegExpMultiple(
       Handle<FixedArray> cached_fixed_array =
           Handle<FixedArray>(FixedArray::cast(*cached_answer));
       // The cache FixedArray is a COW-array and can therefore be reused.
-      isolate->factory()->SetContent(result_array, cached_fixed_array);
+      JSArray::SetContent(result_array, cached_fixed_array);
       // The actual length of the result array is stored in the last element of
       // the backing store (the backing FixedArray may have a larger capacity).
       Object* cached_fixed_array_last_element =
@@ -9699,8 +9698,7 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_DateCacheVersion) {
   // Return result as a JS array.
   Handle<JSObject> result =
       isolate->factory()->NewJSObject(isolate->array_function());
-  isolate->factory()->SetContent(Handle<JSArray>::cast(result),
-                                 date_cache_version);
+  JSArray::SetContent(Handle<JSArray>::cast(result), date_cache_version);
   return *result;
 }
 
@@ -12976,7 +12974,7 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugGetLoadedScripts) {
   // Return result as a JS array.
   Handle<JSObject> result =
       isolate->factory()->NewJSObject(isolate->array_function());
-  isolate->factory()->SetContent(Handle<JSArray>::cast(result), instances);
+  JSArray::SetContent(Handle<JSArray>::cast(result), instances);
   return *result;
 }
 
@@ -13106,7 +13104,7 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugReferencedBy) {
       isolate->context()->native_context()->array_function());
 
   Handle<JSObject> result = isolate->factory()->NewJSObject(constructor);
-  isolate->factory()->SetContent(Handle<JSArray>::cast(result), instances);
+  JSArray::SetContent(Handle<JSArray>::cast(result), instances);
   return *result;
 }
 
@@ -13184,7 +13182,7 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugConstructedBy) {
   Handle<JSFunction> array_function(
       isolate->context()->native_context()->array_function());
   Handle<JSObject> result = isolate->factory()->NewJSObject(array_function);
-  isolate->factory()->SetContent(Handle<JSArray>::cast(result), instances);
+  JSArray::SetContent(Handle<JSArray>::cast(result), instances);
   return *result;
 }