mirror of
https://github.com/golang/go
synced 2024-11-22 03:24:41 -07:00
26dc17ce78
Update #2547. R=golang-dev, minux.ma, r, r, adg CC=golang-dev https://golang.org/cl/5755051
63 lines
1.0 KiB
Go
63 lines
1.0 KiB
Go
// Copyright 2012 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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// This file contains the code snippets included in "The Laws of Reflection."
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package main
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import (
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"bufio"
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"bytes"
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"io"
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"os"
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)
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type MyInt int
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var i int
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var j MyInt
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// STOP OMIT
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// Reader is the interface that wraps the basic Read method.
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type Reader interface {
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Read(p []byte) (n int, err error)
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}
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// Writer is the interface that wraps the basic Write method.
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type Writer interface {
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Write(p []byte) (n int, err error)
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}
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// STOP OMIT
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func readers() { // OMIT
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var r io.Reader
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r = os.Stdin
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r = bufio.NewReader(r)
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r = new(bytes.Buffer)
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// and so on
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// STOP OMIT
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}
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func typeAssertions() (interface{}, error) { // OMIT
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var r io.Reader
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tty, err := os.OpenFile("/dev/tty", os.O_RDWR, 0)
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if err != nil {
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return nil, err
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}
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r = tty
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// STOP OMIT
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var w io.Writer
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w = r.(io.Writer)
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// STOP OMIT
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var empty interface{}
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empty = w
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// STOP OMIT
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return empty, err
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}
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func main() {
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}
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