Class fields, part 2 (desugaring)

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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug/debug.h"
 #include "src/isolate-inl.h"
@@ skipping 658 matching lines @@
   LookupIterator it = LookupIterator::PropertyOrElement(
       isolate, object, name, object, LookupIterator::OWN);
   // Cannot fail since this should only be called when
   // creating an object literal.
   CHECK(JSObject::DefineOwnPropertyIgnoreAttributes(&it, value, attrs,
                                                     Object::DONT_THROW)
             .IsJust());
   return *object;
 }
 
+RUNTIME_FUNCTION(Runtime_DefineDataProperty) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 5);
+  CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
+  CONVERT_ARG_HANDLE_CHECKED(Object, value, 2);
+  CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3);
+  CONVERT_SMI_ARG_CHECKED(set_function_name, 4);
+
+  if (set_function_name) {
+    DCHECK(value->IsJSFunction());
+    JSFunction::SetName(Handle<JSFunction>::cast(value), name,
+                        isolate->factory()->empty_string());
+  }
+
+  PropertyDescriptor desc;
+  desc.set_writable(!(attrs & ReadOnly));
+  desc.set_enumerable(!(attrs & DontEnum));
+  desc.set_configurable(!(attrs & DontDelete));
+  desc.set_value(value);
+
+  Maybe<bool> result = JSReceiver::DefineOwnProperty(isolate, receiver, name,
+                                                     &desc, Object::DONT_THROW);
+  RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate);
+  if (result.IsNothing()) {
+    DCHECK(isolate->has_pending_exception());
+    return isolate->heap()->exception();
+  }
+
+  return *receiver;
+}
+
 // Return property without being observable by accessors or interceptors.
 RUNTIME_FUNCTION(Runtime_GetDataProperty) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
   return *JSReceiver::GetDataProperty(object, name);
 }
 
 RUNTIME_FUNCTION(Runtime_GetConstructorName) {
@@ skipping 233 matching lines @@
       isolate, o, key, &success, LookupIterator::OWN);
   if (!success) return isolate->heap()->exception();
   MAYBE_RETURN(
       JSReceiver::CreateDataProperty(&it, value, Object::THROW_ON_ERROR),
       isolate->heap()->exception());
   return *value;
 }
 
 }  // namespace internal
 }  // namespace v8