go/test/typeparam/issue48609.go

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// compile
// 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 f[T ~chan E, E any](e E) T {
ch := make(T)
go func() {
defer close(ch)
ch <- e
}()
return ch
}