loghlp

Documentation

Index

• func Lazy(f func() string) fmt.Stringer
• func LazyW(f func(io.Writer)) fmt.Stringer
• type StringerFunc
  • func (f StringerFunc) String() string

Functions

func Lazy

func Lazy(f func() string) fmt.Stringer

Lazy returns an fmt.Stringer which returns the string returned by the given function.

As this function is called only when the Stringer's String() function is called, this can be used in loggers to postpone expensive tasks.

func LazyW

func LazyW(f func(io.Writer)) fmt.Stringer

LazyW returns an fmt.Stringer which returns the string written by the given function.

The io.Writer given to the function is a *bytes.Buffer cached by a sync.Pool.

As this function is called only when the Stringer's String() function is called, this can be used in loggers to postpone expensive tasks.

Types

type StringerFunc

type StringerFunc func() string

StringerFunc is a function which returns a string.

func (StringerFunc) String

func (f StringerFunc) String() string