| // 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. |
| |
| // SharedOptions=--enable-experiment=non-nullable |
| |
| // It is an error if a potentially non-nullable local variable which has no |
| // initializer expression and is not marked `late` is used before it is |
| // definitely assigned. |
| |
| // This test check cases when the variable is only initialized (or not) |
| // at its declaration, and there are no other assignments. |
| |
| void main() { |
| int v; v; //# 01: compile-time error |
| int v; //# 02: ok |
| int v = 0; v; //# 03: ok |
| late int v; v; //# 04: compile-time error |
| late int v = 0; v; //# 05: ok |
| int? v; v; //# 06: ok |
| int? v = 0; v; //# 07: ok |
| f<int?>(null); |
| f<int>(0); |
| } |
| |
| f<T>(T a) { |
| T v; v; //# 08: compile-time error |
| T v; //# 09: ok |
| T v = a; v; //# 10: ok |
| late T v; v; //# 11: compile-time error |
| late T v = a; v; //# 12: ok |
| T? v; v; //# 13: ok |
| T? v = a; v; //# 14: ok |
| } |
