dart-sdk/tests/language_strong/getters_setters2_test.dart
Bob Nystrom 6c757957db Move the dev_compiler strong mode tests into sdk/tests/.
DDC's codegen test copies those files to a local "gen" directory so
that it can do stuff like splitting out the multitests before it
compiles them to JS.

I left all of that alone, so the rest of DDC's test infrastructure is
unchanged. The very first step that builds the "gen" directory just
copies from sdk/tests/..._strong/... instead and the rest is good to go.

I did not move not_yet_strong_tests.dart somewhere more accessible yet
because I'm not sure if kernel needs it or where it should go.

I did not create any status files because DDC doesn't need them and
there are no test suites for the new directories for the other
platforms.
2016-12-09 11:09:55 -08:00

66 lines
1.5 KiB
Dart

// Copyright (c) 2012, 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";
// Tests classes with getters and setters that do not have the same type.
class A {
int a() { return 37;}
}
class B extends A{
int b() { return 38; }
}
class C {}
class T1 {
A getterField;
A get field { return getterField; }
// OK, B is assignable to A
void set field(B arg) { getterField = arg; }
}
class T2 {
A getterField;
C setterField;
A get field { return getterField; }
// Type C is not assignable to A
void set field(C arg) { setterField = arg; } /// 01: static type warning
}
class T3 {
B getterField;
B get field { return getterField; }
// OK, A is assignable to B
void set field(A arg) { getterField = arg; }
}
main() {
T1 instance1 = new T1();
T2 instance2 = new T2(); /// 01: continued
T3 instance3 = new T3();
instance1.field = new B();
A resultA = instance1.field;
instance1.field = new A(); /// 03: dynamic type error
B resultB = instance1.field;
int result;
result = instance1.field.a();
Expect.equals(37, result);
// Type 'A' has no method named 'b'
instance1.field.b(); /// 02: static type warning
instance3.field = new B();
result = instance3.field.a();
Expect.equals(37, result);
result = instance3.field.b();
Expect.equals(38, result);
}