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// 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
func f1[P interface{ *P }]() {}
func f2[P interface{ func(P) }]() {}
func f3[P, Q interface{ func(Q) P }]() {}
func f4[P interface{ *Q }, Q interface{ func(P) }]() {}
func f5[P interface{ func(P) }]() {}
func f6[P interface { *Tree[P] }, Q any ]() {}
func _() {
f1 /* ERROR cannot infer P */ ()
f2 /* ERROR cannot infer P */ ()
f3 /* ERROR cannot infer P */ ()
f4 /* ERROR cannot infer P */ ()
f5 /* ERROR cannot infer P */ ()
f6 /* ERROR cannot infer P */ ()
}
type Tree[P any] struct {
left, right *Tree[P]
data P
}
// test case from issue
func foo[Src interface { func() Src }]() Src {
return foo[Src]
}
func _() {
foo /* ERROR cannot infer Src */ ()
}
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