mirror of https://go.googlesource.com/go
35 lines
601 B
Go
35 lines
601 B
Go
// compile
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// Copyright 2024 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 p
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type Iterator[A any] func() (bool, A)
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type Range[A any] interface {
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Blocks() Iterator[Block[A]]
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}
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type Block[A any] interface {
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Range[A]
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}
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type rangeImpl[A any] struct{}
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func (r *rangeImpl[A]) Blocks() Iterator[Block[A]] {
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return func() (bool, Block[A]) {
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var a Block[A]
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return false, a
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}
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}
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func NewRange[A any]() Range[A] {
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return &rangeImpl[A]{}
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}
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type AddrImpl struct{}
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var _ = NewRange[AddrImpl]()
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