blob: d6f2b35f509a32bb4fa844e9b3535965604f7d25 [file] [log] [blame]
/*
* Copyright (c) 2019, 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 If e1 translates to F then e1?[e2] = e3 translates to:
* SHORT[EXP(e1), fn[x] => x[EXP(e2)] = EXP(e3)]
*
* @description Check that if e1 translates to F then e1?[e2] = e3 translates
* to: SHORT[EXP(e1), fn[x] => x[EXP(e2)] = EXP(e3)]. Test type aliases
* @author sgrekhov@unipro.ru
*/
// SharedOptions=--enable-experiment=nonfunction-type-aliases
// Requirements=nnbd-strong
import "../../../Utils/expect.dart";
class C {
List _list;
void operator[]=(int index, dynamic value) => _list[index] = value;
C(int length) : _list = new List.filled(length, null);
}
typedef CAlias1 = C?;
typedef CAlias2 = C;
void testShort(C? x, int index, dynamic value) {
var actual = x?[index] = value;
var n0 = x;
var expected = n0 == null ? null : n0[index] = value;
Expect.equals(expected, actual);
}
main() {
CAlias1 c1 = null;
testShort(c1, 42, "Lily was here");
c1 = new C(3);
testShort(c1, 2, "Show must go on");
CAlias1? c2 = null;
testShort(c2, 42, "Lily was here");
c2 = new C(3);
testShort(c2, 2, "Show must go on");
CAlias2? c3 = null;
testShort(c3, 42, "Lily was here");
c3 = new C(3);
testShort(c3, 2, "Show must go on");
CAlias2 c4 = new C(3);
testShort(c4, 2, "Show must go on");
}