| // Copyright 2019 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| package issue31540 | |
| type Y struct { | |
| q int | |
| } | |
| type Z map[int]int | |
| type X = map[Y]Z | |
| type A1 = X | |
| type A2 = A1 | |
| type S struct { | |
| b int | |
| A2 | |
| } | |
| func Hallo() S { | |
| return S{} | |
| } |