| // Copyright (c) 2021, 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. |
| |
| // Tests string usage with const functions. |
| |
| // SharedOptions=--enable-experiment=const-functions |
| |
| import "package:expect/expect.dart"; |
| |
| const String str = "str"; |
| const var1 = str[2]; |
| // ^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE |
| |
| const var2 = fn(); |
| // ^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE |
| fn() { |
| String local = "str"; |
| return local[0]; |
| } |
| |
| const var3 = "str"[0]; |
| // ^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE |
| |
| const var4 = fn2(); |
| // ^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE |
| fn2() { |
| try { |
| var x = str[-1]; |
| } on RangeError { |
| return 2; |
| } |
| } |
| |
| void main() { |
| Expect.equals(var1, 'r'); |
| Expect.equals(var2, 's'); |
| Expect.equals(var3, 's'); |
| Expect.equals(var4, 2); |
| } |