errwrap

README

errwrap

errwrap 提供了对常用对象需要连续处理 error 的简单封闭。

buf := new(bytes.Buffer)
w := errwrap.Writer{
    Writer: buf,
}

w.WString("string").
    WBytes([]byte("bytes")).
    Printf("format %d", 123)
if w.Err != nil { // 由此处统一处理错误
    // TODO
}

安装

go get github.com/issue9/errwrap

版权

本项目采用 MIT 开源授权许可证，完整的授权说明可在 LICENSE 文件中找到。

Documentation

Overview

Package errwrap 实现对返回 error 方法的二次包装

Index

• type Buffer
  • func (w *Buffer) Print(v ...interface{}) *Buffer
  • func (w *Buffer) Printf(format string, v ...interface{}) *Buffer
  • func (w *Buffer) Println(v ...interface{}) *Buffer
  • func (w *Buffer) Reset() *Buffer
  • func (w *Buffer) WByte(b byte) *Buffer
  • func (w *Buffer) WBytes(data []byte) *Buffer
  • func (w *Buffer) WRune(r rune) *Buffer
  • func (w *Buffer) WRunes(rs []rune) *Buffer
  • func (w *Buffer) WString(str string) *Buffer
• type StringBuilder
  • func (builder *StringBuilder) Print(v ...interface{}) *StringBuilder
  • func (builder *StringBuilder) Printf(format string, v ...interface{}) *StringBuilder
  • func (builder *StringBuilder) Println(v ...interface{}) *StringBuilder
  • func (builder *StringBuilder) WByte(b byte) *StringBuilder
  • func (builder *StringBuilder) WBytes(data []byte) *StringBuilder
  • func (builder *StringBuilder) WRune(r rune) *StringBuilder
  • func (builder *StringBuilder) WRunes(rs []rune) *StringBuilder
  • func (builder *StringBuilder) WString(str string) *StringBuilder
• type Writer
  • func (w *Writer) Print(v ...interface{}) *Writer
  • func (w *Writer) Printf(format string, v ...interface{}) *Writer
  • func (w *Writer) Println(v ...interface{}) *Writer
  • func (w *Writer) WByte(b byte) *Writer
  • func (w *Writer) WBytes(data []byte) *Writer
  • func (w *Writer) WRune(r rune) *Writer
  • func (w *Writer) WRunes(rs []rune) *Writer
  • func (w *Writer) WString(str string) *Writer

Types

type Buffer

type Buffer struct {
	bytes.Buffer
	Err error
}

Buffer 提供缓存错误的 bytes.Buffer

func (*Buffer) Print

func (w *Buffer) Print(v ...interface{}) *Buffer

Print 相当于 fmt.Fprint(builder, v...)

func (*Buffer) Printf

func (w *Buffer) Printf(format string, v ...interface{}) *Buffer

Printf 相当于 fmt.Fprintf(builder, format, v...)

func (*Buffer) Println

func (w *Buffer) Println(v ...interface{}) *Buffer

Println 相当于 fmt.Fprintln(builder, v...)

func (*Buffer) Reset

func (w *Buffer) Reset() *Buffer

Reset 重置内容

同时也会清除错误标记。

func (*Buffer) WByte

func (w *Buffer) WByte(b byte) *Buffer

WByte 写入单个字节内容

func (*Buffer) WBytes

func (w *Buffer) WBytes(data []byte) *Buffer

WBytes 写入字节内容

func (*Buffer) WRune

func (w *Buffer) WRune(r rune) *Buffer

WRune 写入单个字节内容

func (*Buffer) WRunes

func (w *Buffer) WRunes(rs []rune) *Buffer

WRunes 写入字节内容

func (*Buffer) WString

func (w *Buffer) WString(str string) *Buffer

WString 写入字符串

type StringBuilder

type StringBuilder struct {
	strings.Builder
	Err error
}

StringBuilder 提供缓存错误的 strings.Buffer

func (*StringBuilder) Print

func (builder *StringBuilder) Print(v ...interface{}) *StringBuilder

Print 相当于 fmt.Fprint(builder, v...)

func (*StringBuilder) Printf

func (builder *StringBuilder) Printf(format string, v ...interface{}) *StringBuilder

Printf 相当于 fmt.Fprintf(builder, format, v...)

func (*StringBuilder) Println

func (builder *StringBuilder) Println(v ...interface{}) *StringBuilder

Println 相当于 fmt.Fprintln(builder, v...)

func (*StringBuilder) WByte

func (builder *StringBuilder) WByte(b byte) *StringBuilder

WByte 写入单个字节内容

func (*StringBuilder) WBytes

func (builder *StringBuilder) WBytes(data []byte) *StringBuilder

WBytes 写入字节内容

func (*StringBuilder) WRune

func (builder *StringBuilder) WRune(r rune) *StringBuilder

WRune 写入单个字节内容

func (*StringBuilder) WRunes

func (builder *StringBuilder) WRunes(rs []rune) *StringBuilder

WRunes 写入字节内容

func (*StringBuilder) WString

func (builder *StringBuilder) WString(str string) *StringBuilder

WString 写入字符串

type Writer

type Writer struct {
	io.Writer
	Err error
}

Writer 对 io.WrWriter 的简单封闭

func (*Writer) Print

func (w *Writer) Print(v ...interface{}) *Writer

Print 相当于 fmt.Fprint(builder, v...)

func (*Writer) Printf

func (w *Writer) Printf(format string, v ...interface{}) *Writer

Printf 相当于 fmt.Fprintf(builder, format, v...)

func (*Writer) Println

func (w *Writer) Println(v ...interface{}) *Writer

Println 相当于 fmt.Fprintln(builder, v...)

func (*Writer) WByte

func (w *Writer) WByte(b byte) *Writer

WByte 写入单个字节内容

func (*Writer) WBytes

func (w *Writer) WBytes(data []byte) *Writer

WBytes 写入字节内容

func (*Writer) WRune

func (w *Writer) WRune(r rune) *Writer

WRune 写入单个字节内容

func (*Writer) WRunes

func (w *Writer) WRunes(rs []rune) *Writer

WRunes 写入字节内容

func (*Writer) WString

func (w *Writer) WString(str string) *Writer

WString 写入字符串