blob: 6a7e18fc5b42266992f8c5d823699f43257955f9 [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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1)
/// when:
/// Left Legacy if T0 is S0* then:
/// - T0 <: T1 iff S0 <: T1.
/// @description Check that if type T0 is S0* and S0 <: T1 then T0 is subtype of
/// T1.
/// @author sgrekhov@unipro.ru
///
/// @description Check that if type T0 is not a subtype of a type T1, then
/// instance of T0 cannot be assigned to the to local variable of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from left_legacy_fail_A02.dart and
/// local_variable_fail_x01.dart.
/// Don't modify it. If you want to change this test, change one of the files
/// above and then run generator.dart to regenerate the tests.
import '../../utils/common.dart';
import '../../../../Utils/expect.dart';
// Requirements=nnbd-weak
import "../../utils/legacy_lib.dart";
class A extends X {
const A();
}
X t0Instance = new X();
A t1Instance = new A();
const t1Default = const A();
class LocalVariableTest {
LocalVariableTest() {
A t1 = forgetType(t0Instance);
}
LocalVariableTest.valid() {}
static staticTest() {
A t1 = forgetType(t0Instance);
}
test() {
A t1 = forgetType(t0Instance);
}
}
main() {
bar () {
A t1 = forgetType(t0Instance);
}
Expect.throws(() {
A t1 = forgetType(t0Instance);
}, (e) => e is TypeError || e is CastError);
Expect.throws(() {
bar();
}, (e) => e is TypeError || e is CastError);
Expect.throws(() {
new LocalVariableTest();
}, (e) => e is TypeError || e is CastError);
Expect.throws(() {
new LocalVariableTest.valid().test();
}, (e) => e is TypeError || e is CastError);
Expect.throws(() {
LocalVariableTest.staticTest();
}, (e) => e is TypeError || e is CastError);
}