erron

Documentation

Index

• Constants
• func Errno(err error) int
• func New(text string, args ...interface{}) error
• func Throw(err error) error
• func Throwf(format string, args ...interface{}) error
• func Try(fn func() error) (err error)
• func WithErrno(code int, err error) error
• func WithErrnof(code int, format string, args ...interface{}) error
• type Errors
  • func (errs *Errors) All() error
  • func (errs *Errors) Append(err error)
  • func (errs *Errors) First() error
  • func (errs *Errors) Last() error

Constants

const (
	EUnknown = -1
	EOK      = 0
)

Functions

func Errno

func Errno(err error) int

Errno finds the first error in err's chain that contains errno.

The chain consists of err itself followed by the sequence of errors obtained by repeatedly calling Unwrap.

func New

func New(text string, args ...interface{}) error

New returns an error that formats as the given text.

func Throw

func Throw(err error) error

Throw wraps the error with source code position information.

func Throwf

func Throwf(format string, args ...interface{}) error

Throwf returns an error that formats as the given text with source code position information.

func Try

func Try(fn func() error) (err error)

Try executes the fn, and then recovers any panics as an error. If no panics, return the result of fn.

func WithErrno

func WithErrno(code int, err error) error

WithErrno wraps the error with code

func WithErrnof

func WithErrnof(code int, format string, args ...interface{}) error

WithErrnof returns an error that formats as the given text with code.

Types

type Errors

type Errors struct {
	// contains filtered or unexported fields
}

Errors is a container for holds errors

func (*Errors) All

func (errs *Errors) All() error

All merges all errors as an error, nil returned if no error.

func (*Errors) Append

func (errs *Errors) Append(err error)

Append appends err to list if e is non-nil

func (*Errors) First

func (errs *Errors) First() error

First gets the first error of list

func (*Errors) Last

func (errs *Errors) Last() error

Last gets the last error of list