blob: 530f03a37b7344ec63627ead64972f41bf84a691 [file] [log] [blame]
// Copyright (c) 2018, 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.
/// @assertion Mixin application semantics is mostly unchanged, except that it's
/// a compile-time error to apply a mixin to a class that doesn't implement all
/// the 'on' type requirements of the mixin declaration, or apply a mixin
/// containing super-invocations to a class that doesn't have a concrete
/// implementation of the super-invoked members compatible with the
/// super-constraint interface.
/// @description Checks that there is no compile error if a mixin is applied to a
/// class that implements all the 'on' type requirements of the mixin
/// declaration. Test 'extends' implementation of 'on' clause interfaces and type
/// parameters
/// @author
import "../../Utils/expect.dart";
class S {}
class T {}
class X extends S {}
class Y extends T {}
String console = "";
class A<T> {
String get a1 => "A.a1";
set a2(String v) {
console = "A:$v";
String a3() => "A.a3";
String operator ~() => a1.substring(0, 1);
abstract class B<T> extends A<T> {
String get b1;
void set b2(String v);
String b3();
String operator -();
class C<T> extends B<T> {
String get b1 => "C.b1";
void set b2(String v) {
console = "C:$v";
String b3() => "C.b3";
String operator -() => b1.substring(0, 3);
mixin M<X extends S, Y extends T> on A<X>, B<X> {
String get m1 => "m1";
void set m2(String v) {
console = "M:$v";
String m3() => "m3";
class MA extends C<X> with M<X, Y> {
main() {
MA ma = new MA();
Expect.equals("A.a1", ma.a1);
ma.a2 = "a2";
Expect.equals("A:a2", console);
Expect.equals("A.a3", ma.a3());
Expect.equals("A", ~ma);
Expect.equals("C.b1", ma.b1);
ma.b2 = "b2";
Expect.equals("C:b2", console);
Expect.equals("C.b3", ma.b3());
Expect.equals("C.b", -ma);
Expect.equals("m1", ma.m1);
ma.m2 = "m2";
Expect.equals("M:m2", console);
Expect.equals("m3", ma.m3());