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| // Copyright 2012 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.
|
| // This file contains the code snippets included in "The Laws of Reflection."
|
| package main
|
| import (
| "bufio"
| "bytes"
| "io"
| "os"
| )
|
| type MyInt int
|
| var i int
| var j MyInt
|
| // STOP OMIT
|
| // Reader is the interface that wraps the basic Read method.
| type Reader interface {
| Read(p []byte) (n int, err error)
| }
|
| // Writer is the interface that wraps the basic Write method.
| type Writer interface {
| Write(p []byte) (n int, err error)
| }
|
| // STOP OMIT
|
| func readers() { // OMIT
| var r io.Reader
| r = os.Stdin
| r = bufio.NewReader(r)
| r = new(bytes.Buffer)
| // and so on
| // STOP OMIT
| }
|
| func typeAssertions() (interface{}, error) { // OMIT
| var r io.Reader
| tty, err := os.OpenFile("/dev/tty", os.O_RDWR, 0)
| if err != nil {
| return nil, err
| }
| r = tty
| // STOP OMIT
| var w io.Writer
| w = r.(io.Writer)
| // STOP OMIT
| var empty interface{}
| empty = w
| // STOP OMIT
| return empty, err
| }
|
| func main() {
| }
|
|
