diff --git a/test/typeparam/issue48711.go b/test/typeparam/issue48711.go new file mode 100644 index 0000000000..d09a72e576 --- /dev/null +++ b/test/typeparam/issue48711.go @@ -0,0 +1,18 @@ +// errorcheck -G=3 + +// 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 main + +func f[T interface{ ~[]P }, P any](t T) { // ERROR "instantiation cycle" + if t == nil { + return + } + f[[]T, T]([]T{t}) +} + +func main() { + f[[]int](nil) +}