| // Copyright (c) 2017, 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. |
| |
| /*@testedFeatures=inference,error*/ |
| library test; |
| |
| bool f() => null; |
| |
| // Even though x, y, and z form a strongly connected component (each depends on |
| // all the others), the circularity is calculated based on the first problematic |
| // dependency of each field. So x's first problematic dependency is y, and y's |
| // first problematic dependency is x; therefore x and y are considered to have a |
| // circularity, and for error recovery their type is set to `dynamic`. |
| // Thereafter, z infers without problems. |
| |
| var /*@topType=dynamic*/ /*@error=CantInferTypeDueToCircularity*/ x = /*@returnType=dynamic*/ () => |
| f() ? y : z; |
| var /*@topType=dynamic*/ /*@error=CantInferTypeDueToCircularity*/ y = /*@returnType=dynamic*/ () => |
| x; |
| var /*@topType=() -> dynamic*/ z = /*@returnType=dynamic*/ () => x; |
| |
| main() {} |