pkg/front_end/testcases/extensions/check_bounds.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.

part 'check_bounds_lib.dart';

class A {}

class B extends A {}

class Class<T extends A> {}

extension Extension<T extends B> on Class<T> {
  get property => 0;
  set property(_) {}
  method() {}
  genericMethod<S extends B>(S s) {}
  genericMethod2<S extends B>() {}
  operator[](_) {}
  operator[]=(_,_) {}
}

main() {}

test(A a) {
  Class<A> classA = new Class<A>();
  Class<B> classB = new Class<B>();

  classA.method(); // Error: Expect method not found.
  classA.method; // Error: Expect method not found.
  classA.property; // Error: Expect getter not found.
  classA.property = null; // Error: Expect setter not found.
  classA[0]; // Error: Expect index get not found.
  classA[0] = null; // Error: Expect index set not found.
  Extension(classA).method(); // Error: Expect bounds mismatch.
  Extension(classA).method; // Error: Expect bounds mismatch.
  Extension(classA).property; // Error: Expect bounds mismatch.
  Extension(classA).property = null; // Error: Expect bounds mismatch.
  Extension(classA).property += null; // Error: Expect bounds mismatch.
  Extension(classA).property ??= 0; // Error: Expect bounds mismatch.
  Extension(classA).property(); // Error: Expect bounds mismatch.
  Extension(classA).property++; // Error: Expect bounds mismatch.
  --Extension(classA).property; // Error: Expect bounds mismatch.
  Extension(classA)[0]; // Error: Expect bounds mismatch.
  Extension(classA)[0] = null; // Error: Expect bounds mismatch.
  Extension(classA)[0] += null; // Error: Expect bounds mismatch.
  Extension(classA)[0] ??= 0; // Error: Expect bounds mismatch.
  Extension<A>(classA).method(); // Error: Expect bounds mismatch.
  Extension<A>(classA).method; // Error: Expect bounds mismatch.
  Extension<A>(classA).property; // Error: Expect bounds mismatch.
  Extension<A>(classA).property = null; // Error: Expect bounds mismatch.
  Extension<A>(classA).property += null; // Error: Expect bounds mismatch.
  Extension<A>(classA).property ??= 0; // Error: Expect bounds mismatch.
  Extension<A>(classA).property(); // Error: Expect bounds mismatch.
  Extension<A>(classA).property++; // Error: Expect bounds mismatch.
  --Extension<A>(classA).property; // Error: Expect bounds mismatch.
  Extension<A>(classA)[0]; // Error: Expect bounds mismatch.
  Extension<A>(classA)[0] = null; // Error: Expect bounds mismatch.
  Extension<A>(classA)[0] += null; // Error: Expect bounds mismatch.
  Extension<A>(classA)[0] ??= 0; // Error: Expect bounds mismatch.
  Extension(classA).genericMethod(); // Error: Expect bounds mismatch.
  Extension(classA).genericMethod(a); // Error: Expect bounds mismatch.
  Extension(classA).genericMethod<A>(a); // Error: Expect bounds mismatch.
  Extension(classA).genericMethod<B>(a); // Error: Expect bounds mismatch.
  Extension<A>(classA).genericMethod(); // Error: Expect bounds mismatch.
  Extension<A>(classA).genericMethod(a); // Error: Expect bounds mismatch.
  Extension<A>(classA).genericMethod<A>(a); // Error: Expect bounds mismatch.
  Extension<A>(classA).genericMethod<B>(a); // Error: Expect bounds mismatch.


  classB.method();
  classB.method;
  classB.property;
  classB.property = null;
  Extension<B>(classB).method();
  Extension<B>(classB).method;
  Extension<B>(classB).property;
  Extension<B>(classB).property = null;
  Extension<B>(classB).property += null;
  Extension<B>(classB).property ??= 0;
  Extension<B>(classB).property();
  Extension<B>(classB).property++;
  --Extension<B>(classB).property;
  Extension<B>(classB)[0];
  Extension<B>(classB)[0] = null;
  Extension<B>(classB)[0] += null;
  Extension<B>(classB)[0] ??= 0;
  Extension<B>(classB).genericMethod();
  Extension<B>(classB).genericMethod(a); // Error: Expect bounds mismatch.
  Extension<B>(classB).genericMethod<A>(a); // Error: Argument type mismatch.
  Extension<B>(classB).genericMethod<B>(a); // Error: Argument type mismatch.

  classB.genericMethod(a); // Error: Expect bounds mismatch.
  classB.genericMethod<A>(a); // Error: Expect bounds mismatch.
  classB.genericMethod<B>(a); // Error: Argument type mismatch
  Extension(classB).method();
  Extension(classB).method;
  Extension(classB).property;
  Extension(classB).property = null;
  Extension(classB).property += null;
  Extension(classB).property ??= 0;
  Extension(classB).property();
  Extension(classB).property++;
  --Extension(classB).property;
  Extension(classB)[0];
  Extension(classB)[0] = null;
  Extension(classB)[0] += null;
  Extension(classB)[0] ??= 0;
  Extension(classB).genericMethod();
  Extension(classB).genericMethod(a); // Error: Expect bounds mismatch.
  Extension(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
  Extension(classB).genericMethod<B>(a); // Error: Argument type mismatch
  Extension<A>(classB).genericMethod(a); // Error: Expect bounds mismatch.
  Extension<A>(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
  Extension<A>(classB).genericMethod<B>(a); // Error: Expect bounds mismatch.
  Extension<B>(classB).genericMethod(a); // Error: Expect bounds mismatch.
  Extension<B>(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
  Extension<B>(classB).genericMethod<B>(a); // Error: Argument type mismatch
}

final A a = new A();
final Class<A> classA = new Class<A>();
final Class<B> classB = new Class<B>();

final field1 = classA.method(); // Error: Expect method not found.
final field2 = Extension(classA).method(); // Error: Expect bounds mismatch.
final field3 = Extension<A>(classA).method(); // Error: Expect bounds mismatch.
final field4 = Extension<B>(classA).method();
final field5 = Extension(classA).genericMethod(a); // Error: Expect bounds mismatch.
final field6 = Extension(classA).genericMethod<A>(a); // Error: Expect bounds mismatch.
final field7 = Extension(classA).genericMethod<B>(a); // Error: Expect bounds mismatch.
final field8 = Extension<A>(classA).genericMethod(a); // Error: Expect bounds mismatch.
final field9 =
    Extension<A>(classA).genericMethod<A>(a); // Error: Expect bounds mismatch.
final field10 =
    Extension<A>(classA).genericMethod<B>(a); // Error: Expect bounds mismatch.
final field11 =
    Extension<B>(classB).genericMethod(a); // Error: Expect bounds mismatch.
final field12 =
    Extension<B>(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
final field13 = Extension<B>(classB).genericMethod<B>(a);

final field14 = classB.method();
final field15 = Extension(classB).method();
final field16 = Extension<A>(classB).method(); // Error: Expect bounds mismatch.
final field17 = Extension<B>(classB).method();

final field18 = classB.genericMethod(a); // Error: Expect bounds mismatch.
final field19 = classB.genericMethod<A>(a); // Error: Expect bounds mismatch.
final field20 = classB.genericMethod<B>(a);
final field21 = Extension(classB).genericMethod(a); // Error: Expect bounds mismatch.
final field22 =
    Extension(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
final field23 = Extension(classB).genericMethod<B>(a);
final field24 =
    Extension<A>(classB).genericMethod(a); // Error: Expect bounds mismatch.
final field25 =
    Extension<A>(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
final field26 =
    Extension<A>(classB).genericMethod<B>(a); // Error: Expect bounds mismatch.
final field27 =
    Extension<B>(classB).genericMethod(a); // Error: Expect bounds mismatch.
final field28 =
    Extension<B>(classB).genericMethod<A>(a); // Error: Expect bounds mismatch.
final field29 = Extension<B>(classB).genericMethod<B>(a);