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// 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.
import "package:expect/expect.dart";
class I<X> {}
class C0<T> extends I<T> {}
class C1<T> implements I<T> {}
mixin M0<T> on I<T> {
mixin M1<T> on I<T> {
T Function(T) get value => null;
mixin M2<T> implements I<T> {}
mixin M3<T> on I<T> {}
class J<X> {}
class C2 extends C1<int> implements J<double> {}
class C3 extends J<double> {}
mixin M4<S, T> on I<S>, J<T> {
S Function(S) get value0 => null;
T Function(T) get value1 => null;
// M4 is inferred as M4<int, double>
class A22 extends C2 with M1, M4 {
void check() {
// Verify that M1.T is exactly int
int Function(int) f = this.value;
// Verify that M4.S is exactly int
int Function(int) f0 = this.value0;
// Verify that M4.T is exactly double
double Function(double) f1 = this.value1;
void main() {
Expect.type<M4<int, double>>(new A22()..check());
Expect.type<M1<int>>(new A22()..check());