1 // Copyright 2020 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4
5 package generics
6
7 func _[A, B any](a A, b B) int {}
8 func _[T any](x, y T) T
9
10 type T[P any] struct{}
11 type T[P1, P2, P3 any] struct{}
12
13 type T[P C] struct{}
14 type T[P1, P2, P3 C] struct{}
15
16 type T[P C[P]] struct{}
17 type T[P1, P2, P3 C[P1, P2, P3]] struct{}
18
19 func f[P any](x P)
20 func f[P1, P2, P3 any](x1 P1, x2 P2, x3 P3) struct{}
21
22 func f[P interface{}](x P)
23 func f[P1, P2, P3 interface{ m1(P1); type P2, P3 }](x1 P1, x2 P2, x3 P3) struct{}
24 func f[P any](T1[P], T2[P]) T3[P]
25
26 func (x T[P]) m()
27 func ((T[P])) m(x T[P]) P
28
29 func _() {
30 type _ []T[P]
31 var _ []T[P]
32 _ = []T[P]{}
33 }
34
35 // properly format one-line type lists
36 type _ interface { type a }
37
38 type _ interface { type a,b,c }
39
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