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47 lines
667 B
Go
47 lines
667 B
Go
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// compile -G=3
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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type Src1[T any] func() Src1[T]
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func (s *Src1[T]) Next() {
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*s = (*s)()
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}
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type Src2[T any] []func() Src2[T]
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func (s Src2[T]) Next() {
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_ = s[0]()
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}
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type Src3[T comparable] map[T]func() Src3[T]
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func (s Src3[T]) Next() {
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var a T
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_ = s[a]()
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}
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type Src4[T any] chan func() T
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func (s Src4[T]) Next() {
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_ = (<-s)()
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}
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func main() {
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var src1 Src1[int]
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src1.Next()
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var src2 Src2[int]
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src2.Next()
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var src3 Src3[string]
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src3.Next()
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var src4 Src4[int]
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src4.Next()
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}
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