basefn

func CallOn ¶

func CallOn(cond bool, fn ErrFunc) error

CallOn call func on condition is true

func CallOrElse ¶

func CallOrElse(cond bool, okFn, elseFn ErrFunc) error

CallOrElse call okFunc() on condition is true, else call elseFn()

func ErrOnFail ¶

func ErrOnFail(cond bool, err error) error

ErrOnFail return input error on cond is false, otherwise return nil

func FirstOr ¶

func FirstOr[T any](sl []T, elseVal T) T

FirstOr get first elem or elseVal

func Must ¶

func Must[T any](v T, err error) T

Must return like (v, error). will panic on error, otherwise return v.

Usage:

// old
v, err := fn()
if err != nil {
	panic(err)
}

// new
v := goutil.Must(fn())

func MustIgnore ¶

func MustIgnore(_ any, err error)

MustIgnore for return like (v, error). Ignore return v and will panic on error.

Useful for io, file operation func: (n int, err error)

Usage:

// old
_, err := fn()
if err != nil {
	panic(err)
}

// new
basefn.MustIgnore(fn())

func MustOK ¶

func MustOK(err error)

MustOK if error is not empty, will panic

func OrError ¶

func OrError(cond bool, err error) error

OrError return input error on cond is false, otherwise return nil

func OrReturn ¶

func OrReturn[T any](cond bool, okFn, elseFn func() T) T

OrReturn call okFunc() on condition is true, else call elseFn()

like expr: if cond { okFunc() } else { elseFn() }

func OrValue ¶

func OrValue[T any](cond bool, okVal, elVal T) T

OrValue get. like: if cond { okVal } else { elVal }

func PanicErr ¶

func PanicErr(err error)

PanicErr panics if error is not empty

func PanicIf ¶

func PanicIf(cond bool, fmtAndArgs ...any)

PanicIf if cond = true, panics with an error message

func Panicf ¶

func Panicf(format string, v ...any)

Panicf format panic message use fmt.Sprintf