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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
import "unsafe"
// The actual example from the issue.
type List[P any] struct{}
func (_ List[P]) m() (_ List[List[P]]) { return }
// Other types of recursion through methods.
type R[P any] int
func (*R[R /* ERROR "must be an identifier" */ [int]]) m0() {}
func (R[P]) m1(R[R[P]]) {}
func (R[P]) m2(R[*P]) {}
func (R[P]) m3([unsafe.Sizeof(new(R[P]))]int) {}
func (R[P]) m4([unsafe.Sizeof(new(R[R[P]]))]int) {}
// Mutual recursion
type M[P any] int
func (R[P]) m5(M[M[P]]) {}
func (M[P]) m(R[R[P]]) {}