xerror

Documentation

Overview

Package xerror implements helpers for errors

Index

• func Unwrap[T any](val T, err error) T

Examples

• Unwrap

Functions

func Unwrap

func Unwrap[T any](val T, err error) T

Unwrap if err is nil then it returns a valid value If err is not nil, Unwrap panics with err. Play: https://go.dev/play/p/w84d7Mb3Afk

Example

result1 := Unwrap(strconv.Atoi("42"))
fmt.Println(result1)

_, err := strconv.Atoi("4o2")
defer func() {
	v := recover()
	result2 := reflect.DeepEqual(err.Error(), v.(*strconv.NumError).Error())
	fmt.Println(result2)
}()

Unwrap(strconv.Atoi("4o2"))

Output:

42
true