Files
sdk/pkg/front_end/testcases/patterns/final_joint_variables.dart
T
Chloe Stefantsova 82237f9483 [cfe] Support final joint variables in switch statements
Part of https://github.com/dart-lang/sdk/issues/49749

Change-Id: I741562bd37cd5f93d4a2d1ccadcb869344bc10a2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/286926
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
2023-03-07 07:48:25 +00:00

30 lines
685 B
Dart

// Copyright (c) 2023, 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.
test(dynamic x) {
switch (x) {
case [final int a]:
case final int a:
return a;
case [final String a] || final String a:
return a;
default:
return null;
}
}
main() {
expectEquals(test(0), 0);
expectEquals(test([0]), 0);
expectEquals(test("foo"), "foo");
expectEquals(test(["foo"]), "foo");
expectEquals(test(3.14), null);
}
expectEquals(x, y) {
if (x != y) {
throw "Expected '${x}' to be equal to '${x}'.";
}
}