|  | // Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  |  | 
|  | // ignore: import_internal_library | 
|  | import 'dart:_internal'; | 
|  |  | 
|  | @patch | 
|  | class Class { | 
|  | @patch | 
|  | Class.missingOriginConstructor(); /* Error: missing origin class */ | 
|  |  | 
|  | Class.existingOriginConstructor(); /* Error: conflict with origin class */ | 
|  |  | 
|  | @patch | 
|  | void missingOriginMethod() {} /* Error: missing origin method */ | 
|  |  | 
|  | void existingOriginMethod() {} /* Error: conflict with origin method */ | 
|  | } | 
|  |  | 
|  | @patch | 
|  | void missingOriginMethod() {} /* Error: missing origin method */ | 
|  |  | 
|  | @patch | 
|  | class MissingOriginClass {} /* Error: missing origin class */ | 
|  |  | 
|  | @patch | 
|  | extension MissingOriginExtension on int {} /* Error: missing origin extension */ | 
|  |  | 
|  | void existingOriginMethod() {} /* Error: conflict with origin method */ | 
|  |  | 
|  | class existingOriginDeclaration {} /* Error: conflict with origin declaration */ | 
|  |  | 
|  | class ExistingOriginClass {} /* Error: conflict with origin class */ |