Robert Nystrom
959bf6e1c3
Change-Id: I6cbad15f7151a1a5e1ece71f91ddfb826dca5de5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141762 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Leaf Petersen <leafp@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
80 lines
2.2 KiB
Dart
80 lines
2.2 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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class A {
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const A();
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}
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class B extends A {
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const B();
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}
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class C extends A {
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const C();
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const factory C.d() = D;
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}
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class D extends B implements C {
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const D();
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}
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class Test1 {
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final A x = const A(); //# 01: ok
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final A x = const B(); //# 02: ok
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final B x = const A(); //# 03: compile-time error
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final B x = const C(); //# 04: compile-time error
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final B x = const C.d(); //# 05: compile-time error
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const Test1();
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}
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// Will be instantiated with U=A and V=B.
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class Test2<U, V> {
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final U x = const A(); //# 06: compile-time error
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final U x = const B(); //# 07: compile-time error
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final V x = const A(); //# 08: compile-time error
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final V x = const C(); //# 09: compile-time error
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final V x = const C.d(); //# 10: compile-time error
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const Test2();
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}
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// Will be instantiated with U=A and V=B.
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class Test3<U extends A, V extends B> {
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final U x = const A(); //# 11: compile-time error
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final U x = const B(); //# 12: compile-time error
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final V x = const A(); //# 13: compile-time error
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final V x = const C(); //# 14: compile-time error
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final V x = const C.d(); //# 15: compile-time error
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const Test3();
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}
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// Will be instantiated with U=A and V=B.
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class Test4<U extends A, V extends A> {
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final U x = const A(); //# 16: compile-time error
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final U x = const B(); //# 17: compile-time error
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final V x = const A(); //# 18: compile-time error
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final V x = const C(); //# 19: compile-time error
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final V x = const C.d(); //# 20: compile-time error
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const Test4();
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}
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// Will be instantiated with U=dynamic and V=dynamic.
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class Test5<U extends A, V extends B> {
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final U x = const A(); //# 21: compile-time error
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final U x = const B(); //# 22: compile-time error
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final V x = const A(); //# 23: compile-time error
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final V x = const C(); //# 24: compile-time error
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final V x = const C.d(); //# 25: compile-time error
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const Test5();
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}
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use(x) => x;
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main() {
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use(const Test1());
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use(const Test2<A, B>());
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use(const Test3<A, B>());
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use(const Test4<A, B>());
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use(const Test5());
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}
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