Robert Nystrom
c9d54c12f6
Change-Id: I3c5cfbc1bc5e41d2ef1598427067dea00f9f42b4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425403 Reviewed-by: Lasse Nielsen <lrn@google.com> Commit-Queue: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
77 lines
1.8 KiB
Dart
77 lines
1.8 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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//
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// Testing pre-3.0 patterns behavior.
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// @dart=2.19
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import "package:expect/expect.dart";
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class A {
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const A();
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const factory A.B() = B;
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const factory A.C() = C;
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const factory A.C2() = D;
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}
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class B implements A {
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const B();
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operator ==(o) => true;
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}
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class C implements D {
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final int x;
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const C() : x = 0;
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const C.fromD() : x = 1;
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}
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class D implements A {
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int get x => 0;
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const factory D() = C.fromD;
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}
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main() {
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switch (new B()) {
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case const A.B() as B:
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// ^^^^^^^^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
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// ^
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// [cfe] Case expression 'B {}' does not have a primitive operator '=='.
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Expect.fail("bad switch");
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break;
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}
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switch (new C()) {
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case const C():
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Expect.fail("bad switch");
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break;
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case const A.C() as C:
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Expect.fail("bad switch");
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break;
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case const A.C2() as C:
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Expect.fail("bad switch");
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break;
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case const A():
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// ^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.CASE_EXPRESSION_TYPE_IS_NOT_SWITCH_EXPRESSION_SUBTYPE
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// ^
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// [cfe] Type 'A' of the case expression is not a subtype of type 'C' of this switch expression.
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Expect.fail("bad switch");
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break;
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}
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switch (new A()) {
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case const A():
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Expect.fail("bad switch");
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break;
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case const A.B():
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// ^^^^^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.CASE_EXPRESSION_TYPE_IMPLEMENTS_EQUALS
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// ^
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// [cfe] Case expression 'B {}' does not have a primitive operator '=='.
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Expect.fail("bad switch");
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break;
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}
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}
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