mirror of
https://github.com/dart-lang/sdk
synced 2024-09-19 14:51:30 +00:00
d9326f4ab3
Bug: Change-Id: Icda59de9bfad2e9b2683f019fb9c6fc54c12547c Reviewed-on: https://dart-review.googlesource.com/7587 Reviewed-by: Bob Nystrom <rnystrom@google.com>
131 lines
3.4 KiB
Dart
131 lines
3.4 KiB
Dart
// Copyright (c) 2013, 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 M<T> {
|
|
bool matches(o) {
|
|
bool isChecked = checkUsingIs(o);
|
|
if (checkedMode) {
|
|
Expect.equals(isChecked, checkUsingCheckedMode(o));
|
|
}
|
|
return isChecked;
|
|
}
|
|
|
|
bool checkUsingIs(o) {
|
|
return o is T;
|
|
}
|
|
|
|
bool checkUsingCheckedMode(o) {
|
|
try {
|
|
T x = o;
|
|
} on Error {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static final bool checkedMode = computeCheckedMode();
|
|
static bool computeCheckedMode() {
|
|
try {
|
|
int x = "foo" as dynamic;
|
|
} on Error {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
class S {}
|
|
|
|
class C0<T> extends S with M {}
|
|
|
|
class C1<T> extends S with M<T> {}
|
|
|
|
class C2<T> extends S with M<int> {}
|
|
|
|
class C3 extends S with M<String> {}
|
|
|
|
main() {
|
|
var c0 = new C0();
|
|
Expect.isTrue(c0 is M);
|
|
Expect.isFalse(c0 is M<int>);
|
|
Expect.isFalse(c0 is M<String>);
|
|
Expect.isTrue(c0.matches(c0));
|
|
Expect.isTrue(c0.matches(42));
|
|
Expect.isTrue(c0.matches("hello"));
|
|
|
|
var c0_int = new C0<int>();
|
|
Expect.isTrue(c0_int is M);
|
|
Expect.isFalse(c0_int is M<int>);
|
|
Expect.isFalse(c0_int is M<String>);
|
|
Expect.isTrue(c0_int.matches(c0));
|
|
Expect.isTrue(c0_int.matches(42));
|
|
Expect.isTrue(c0_int.matches("hello"));
|
|
|
|
var c0_String = new C0<String>();
|
|
Expect.isTrue(c0_String is M);
|
|
Expect.isFalse(c0_String is M<int>);
|
|
Expect.isFalse(c0_String is M<String>);
|
|
Expect.isTrue(c0_String.matches(c0));
|
|
Expect.isTrue(c0_String.matches(42));
|
|
Expect.isTrue(c0_String.matches("hello"));
|
|
|
|
var c1 = new C1();
|
|
Expect.isTrue(c1 is M);
|
|
Expect.isFalse(c1 is M<int>);
|
|
Expect.isFalse(c1 is M<String>);
|
|
Expect.isTrue(c1.matches(c1));
|
|
Expect.isTrue(c1.matches(42));
|
|
Expect.isTrue(c1.matches("hello"));
|
|
|
|
var c1_int = new C1<int>();
|
|
Expect.isTrue(c1_int is M);
|
|
Expect.isTrue(c1_int is M<int>);
|
|
Expect.isFalse(c1_int is M<String>);
|
|
Expect.isFalse(c1_int.matches(c1));
|
|
Expect.isTrue(c1_int.matches(42));
|
|
Expect.isFalse(c1_int.matches("hello"));
|
|
|
|
var c1_String = new C1<String>();
|
|
Expect.isTrue(c1_String is M);
|
|
Expect.isFalse(c1_String is M<int>);
|
|
Expect.isTrue(c1_String is M<String>);
|
|
Expect.isFalse(c1_String.matches(c1));
|
|
Expect.isFalse(c1_String.matches(42));
|
|
Expect.isTrue(c1_String.matches("hello"));
|
|
|
|
var c2 = new C2();
|
|
Expect.isTrue(c2 is M);
|
|
Expect.isTrue(c2 is M<int>);
|
|
Expect.isFalse(c2 is M<String>);
|
|
Expect.isFalse(c2.matches(c2));
|
|
Expect.isTrue(c2.matches(42));
|
|
Expect.isFalse(c2.matches("hello"));
|
|
|
|
var c2_int = new C2<int>();
|
|
Expect.isTrue(c2_int is M);
|
|
Expect.isTrue(c2_int is M<int>);
|
|
Expect.isFalse(c2_int is M<String>);
|
|
Expect.isFalse(c2_int.matches(c2));
|
|
Expect.isTrue(c2_int.matches(42));
|
|
Expect.isFalse(c2_int.matches("hello"));
|
|
|
|
var c2_String = new C2<String>();
|
|
Expect.isTrue(c2_String is M);
|
|
Expect.isTrue(c2_String is M<int>);
|
|
Expect.isFalse(c2_String is M<String>);
|
|
Expect.isFalse(c2_String.matches(c2));
|
|
Expect.isTrue(c2_String.matches(42));
|
|
Expect.isFalse(c2_String.matches("hello"));
|
|
|
|
var c3 = new C3();
|
|
Expect.isTrue(c3 is M);
|
|
Expect.isFalse(c3 is M<int>);
|
|
Expect.isTrue(c3 is M<String>);
|
|
Expect.isFalse(c3.matches(c2));
|
|
Expect.isFalse(c3.matches(42));
|
|
Expect.isTrue(c3.matches("hello"));
|
|
}
|