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// Copyright 2020 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.
// Check "infinite expansion" cycle errors across instantiated types.
package p
type E0[P any] P
type E1[P any] *P
type E2[P any] struct{ P }
type E3[P any] struct{ *P }
type T0 /* ERROR illegal cycle */ struct {
_ E0[T0]
}
type T0_ /* ERROR illegal cycle */ struct {
E0[T0_]
}
type T1 struct {
_ E1[T1]
}
type T2 /* ERROR illegal cycle */ struct {
_ E2[T2]
}
type T3 struct {
_ E3[T3]
}
// some more complex cases
type T4 /* ERROR illegal cycle */ struct {
_ E0[E2[T4]]
}
type T5 struct {
_ E0[E2[E0[E1[E2[[10]T5]]]]]
}
type T6 /* ERROR illegal cycle */ struct {
_ E0[[10]E2[E0[E2[E2[T6]]]]]
}
type T7 struct {
_ E0[[]E2[E0[E2[E2[T6]]]]]
}
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