pkg/front_end/test/extensions/data/explicit_this.dart

// Copyright (c) 2019, 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.

class A1 {
  Object field;
  void method1() {}
}

/*class: A2:
 builder-name=A2,
 builder-onTypes=[A1],
 builder-supertype=Object,
 cls-name=A2,
 cls-supertype=Object
*/
extension A2 on A1 {
  /*member: A2|method2:
    builder-name=method2,
    builder-params=[#this],
    member-name=A2|method2,
    member-params=[#this]
  */
  void method2() => this.method1();

  /*member: A2|method3:
   builder-name=method3,
   builder-params=[#this],
   member-name=A2|method3,
   member-params=[#this]
 */
  Object method3() => this.field;

  /*member: A2|method4:
     builder-name=method4,
     builder-params=[#this,o],
     member-name=A2|method4,
     member-params=[#this,o]
    */
  void method4(Object o) {
    this.field = o;
  }
}

main() {
}