Support computed properties for ES2015 Function.name

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 897 matching lines @@
   }
 
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result, JSObject::DefineOwnPropertyIgnoreAttributes(
                            &it, value, attrs, JSObject::DONT_FORCE_FIELD));
 
   return *result;
 }
 
+RUNTIME_FUNCTION(Runtime_DefineDataPropertyInLiteral) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 5);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 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 (FLAG_harmony_function_name && set_function_name) {
+    DCHECK(value->IsJSFunction());
+    JSFunction::SetName(Handle<JSFunction>::cast(value), name,
+                        isolate->factory()->empty_string());
+  }
+
+  LookupIterator it = LookupIterator::PropertyOrElement(isolate, object, name,
+                                                        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;
+}
 
 // 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);
 }
 
@@ skipping 71 matching lines @@
 
 
 RUNTIME_FUNCTION(Runtime_DefineGetterPropertyUnchecked) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 4);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, getter, 2);
   CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3);
 
+  if (FLAG_harmony_function_name &&
+      String::cast(getter->shared()->name())->length() == 0) {
+    JSFunction::SetName(getter, name, isolate->factory()->get_string());
+  }
+
   RETURN_FAILURE_ON_EXCEPTION(
       isolate,
       JSObject::DefineAccessor(object, name, getter,
                                isolate->factory()->null_value(), attrs));
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_DefineSetterPropertyUnchecked) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 4);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0);
   CONVERT_ARG_HANDLE_CHECKED(Name, name, 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, setter, 2);
   CONVERT_PROPERTY_ATTRIBUTES_CHECKED(attrs, 3);
 
+  if (FLAG_harmony_function_name &&
+      String::cast(setter->shared()->name())->length() == 0) {
+    JSFunction::SetName(setter, name, isolate->factory()->set_string());
+  }
+
   RETURN_FAILURE_ON_EXCEPTION(
       isolate,
       JSObject::DefineAccessor(object, name, isolate->factory()->null_value(),
                                setter, attrs));
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_ToObject) {
   HandleScope scope(isolate);
@@ skipping 253 matching lines @@
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(Object, o, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, properties, 1);
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, o, JSReceiver::DefineProperties(isolate, o, properties));
   return *o;
 }
 
 }  // namespace internal
 }  // namespace v8