| // Copyright 2021 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 p |
| |
| import "unsafe" |
| |
| type T0 /* ERROR illegal cycle */ [P T0[P]] struct{} |
| |
| type T1 /* ERROR illegal cycle */ [P T2[P]] struct{} |
| type T2[P T1[P]] struct{} |
| |
| type T3 /* ERROR illegal cycle */ [P interface{ ~struct{ f T3[int] } }] struct{} |
| |
| // valid cycle in M |
| type N[P M[P]] struct{} |
| type M[Q any] struct { F *M[Q] } |
| |
| // "crazy" case |
| type TC[P [unsafe.Sizeof(func() { |
| type T [P [unsafe.Sizeof(func(){})]byte] struct{} |
| })]byte] struct{} |
| |
| // test case from issue |
| type X /* ERROR illegal cycle */ [T any, PT X[T]] interface{} |
