Convert function.prototype to API-style accessor.

src/accessors.cc

 // Copyright 2012 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 779 matching lines @@
   }
 
   if (!function->has_prototype()) {
     Handle<Object> proto = isolate->factory()->NewFunctionPrototype(function);
     JSFunction::SetPrototype(function, proto);
   }
   return Handle<Object>(function->prototype(), isolate);
 }
 
 
-Handle<Object> Accessors::FunctionGetPrototype(Handle<JSFunction> function) {
-  return GetFunctionPrototype(function->GetIsolate(), function);
-}
-
-
-
-MaybeHandle<Object> SetFunctionPrototype(Isolate* isolate,
-                                         Handle<JSObject> receiver,
-                                         Handle<Object> value) {
-    Handle<JSFunction> function;
+static Handle<Object> SetFunctionPrototype(Isolate* isolate,
+                                           Handle<JSObject> receiver,
+                                           Handle<Object> value) {
+  Handle<JSFunction> function;
   {
     DisallowHeapAllocation no_allocation;
     JSFunction* function_raw = FindInstanceOf<JSFunction>(isolate, *receiver);
     if (function_raw == NULL) return isolate->factory()->undefined_value();
     function = Handle<JSFunction>(function_raw, isolate);
   }
 
   if (!function->should_have_prototype()) {
     // Since we hit this accessor, object will have no prototype property.
-    return JSObject::SetLocalPropertyIgnoreAttributes(
-        receiver, isolate->factory()->prototype_string(), value, NONE);
+    MaybeHandle<Object> maybe_result =
+        JSObject::SetLocalPropertyIgnoreAttributes(
+            receiver, isolate->factory()->prototype_string(), value, NONE);
+    return maybe_result.ToHandleChecked();
   }
 
   Handle<Object> old_value;
   bool is_observed = *function == *receiver && function->map()->is_observed();
   if (is_observed) {
     if (function->has_prototype())
       old_value = handle(function->prototype(), isolate);
     else
       old_value = isolate->factory()->NewFunctionPrototype(function);
   }
 
   JSFunction::SetPrototype(function, value);
   ASSERT(function->prototype() == *value);
 
   if (is_observed && !old_value->SameValue(*value)) {
     JSObject::EnqueueChangeRecord(
         function, "update", isolate->factory()->prototype_string(), old_value);
   }
 
   return function;
 }
 
 
+Handle<Object> Accessors::FunctionGetPrototype(Handle<JSFunction> function) {
+  return GetFunctionPrototype(function->GetIsolate(), function);
+}
+
+
 Handle<Object> Accessors::FunctionSetPrototype(Handle<JSFunction> function,
                                                Handle<Object> prototype) {
   ASSERT(function->should_have_prototype());
   Isolate* isolate = function->GetIsolate();
-  Handle<Object> result;
-  SetFunctionPrototype(isolate, function, prototype).ToHandle(&result);
-  return result;
+  return SetFunctionPrototype(isolate, function, prototype);
 }
 
 
-MaybeObject* Accessors::FunctionGetPrototype(Isolate* isolate,
-                                             Object* object,
-                                             void*) {
+void Accessors::FunctionPrototypeGetter(
+    v8::Local<v8::String> name,
+    const v8::PropertyCallbackInfo<v8::Value>& info) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
   HandleScope scope(isolate);
-  return *GetFunctionPrototype(isolate, Handle<Object>(object, isolate));
+  Handle<Object> object = Utils::OpenHandle(*info.This());
+  Handle<Object> result = GetFunctionPrototype(isolate, object);
+  info.GetReturnValue().Set(Utils::ToLocal(result));
 }
 
 
-MaybeObject* Accessors::FunctionSetPrototype(Isolate* isolate,
-                                             JSObject* object,
-                                             Object* value,
-                                             void*) {
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result,
-      SetFunctionPrototype(isolate,
-                           Handle<JSObject>(object, isolate),
-                           Handle<Object>(value, isolate)));
-  return *result;
+void Accessors::FunctionPrototypeSetter(
+    v8::Local<v8::String> name,
+    v8::Local<v8::Value> val,
+    const v8::PropertyCallbackInfo<void>& info) {
+  i::Isolate* isolate = reinterpret_cast<i::Isolate*>(info.GetIsolate());
+  HandleScope scope(isolate);
+  Handle<JSObject> object = Utils::OpenHandle(*info.This());
+  Handle<Object> value = Utils::OpenHandle(*val);
+
+  SetFunctionPrototype(isolate, object, value);
 }
 
 
-const AccessorDescriptor Accessors::FunctionPrototype = {
-  FunctionGetPrototype,
-  FunctionSetPrototype,
-  0
-};
+Handle<AccessorInfo> Accessors::FunctionPrototypeInfo(
+      Isolate* isolate, PropertyAttributes attributes) {
+  return MakeAccessor(isolate,
+                      isolate->factory()->prototype_string(),
+                      &FunctionPrototypeGetter,
+                      &FunctionPrototypeSetter,
+                      attributes);
+}
 
 
 //
 // Accessors::FunctionLength
 //
 
 
 MaybeObject* Accessors::FunctionGetLength(Isolate* isolate,
                                           Object* object,
                                           void*) {
@@ skipping 327 matching lines @@
   info->set_data(Smi::FromInt(index));
   Handle<Object> getter = v8::FromCData(isolate, &ModuleGetExport);
   Handle<Object> setter = v8::FromCData(isolate, &ModuleSetExport);
   info->set_getter(*getter);
   if (!(attributes & ReadOnly)) info->set_setter(*setter);
   return info;
 }
 
 
 } }  // namespace v8::internal