1// errorcheck -lang=go1.17 2 3// Copyright 2021 The Go Authors. All rights reserved. 4// Use of this source code is governed by a BSD-style 5// license that can be found in the LICENSE file. 6 7package p 8 9type empty interface{} 10 11type Foo[T empty] int // ERROR "type parameter requires go1\.18 or later \(-lang was set to go1\.17; check go.mod\)" 12 13func Bar[T empty]() {} // ERROR "type parameter requires go1\.18 or later \(-lang was set to go1\.17; check go.mod\)" 14