Reduce boilerplace for common pattern to return MaybeHandle.

src/runtime/runtime-operators.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/arguments.h"
 #include "src/isolate-inl.h"
 #include "src/runtime/runtime-utils.h"
 
 namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_Multiply) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::Multiply(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::Multiply(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_Divide) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::Divide(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::Divide(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_Modulus) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::Modulus(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::Modulus(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_Add) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::Add(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::Add(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_Subtract) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::Subtract(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::Subtract(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_ShiftLeft) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::ShiftLeft(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::ShiftLeft(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_ShiftRight) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::ShiftRight(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::ShiftRight(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_ShiftRightLogical) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result, Object::ShiftRightLogical(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate,
+                           Object::ShiftRightLogical(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_BitwiseAnd) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::BitwiseAnd(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::BitwiseAnd(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_BitwiseOr) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::BitwiseOr(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::BitwiseOr(isolate, lhs, rhs));
 }
 
 
 RUNTIME_FUNCTION(Runtime_BitwiseXor) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, lhs, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, rhs, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     Object::BitwiseXor(isolate, lhs, rhs));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate, Object::BitwiseXor(isolate, lhs, rhs));
 }
 
 RUNTIME_FUNCTION(Runtime_Equal) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
   Maybe<bool> result = Object::Equals(x, y);
   if (!result.IsJust()) return isolate->heap()->exception();
   return isolate->heap()->ToBoolean(result.FromJust());
@@ skipping 63 matching lines @@
   Maybe<bool> result = Object::GreaterThanOrEqual(x, y);
   if (!result.IsJust()) return isolate->heap()->exception();
   return isolate->heap()->ToBoolean(result.FromJust());
 }
 
 RUNTIME_FUNCTION(Runtime_InstanceOf) {
   HandleScope shs(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(Object, object, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, callable, 1);
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result, Object::InstanceOf(isolate, object, callable));
-  return *result;
+  RETURN_RESULT_OR_FAILURE(isolate,
+                           Object::InstanceOf(isolate, object, callable));
 }
 
 }  // namespace internal
 }  // namespace v8