Go: must

INSTALL

go get github.com/hidori/go-must@latest

USAGE

CODE:

package main

import (
 "errors"
 "fmt"

 "github.com/hidori/go-must"
)

func main() {
 do()
 do2()
 do3()
}

func do() {
 v := must.Do(func() (int, error) {
  return 1, nil
 })
 fmt.Println(v)

 defer func() {
  if r := recover(); r != nil {
   fmt.Println(r)
  }
 }()

 must.Do(func() (int, error) {
  panic(errors.New("error1"))
 })
}

func do2() {
 v, v1 := must.Do2(func() (int, int, error) {
  return 1, 2, nil
 })
 fmt.Println(v, v1)

 defer func() {
  if r := recover(); r != nil {
   fmt.Println(r)
  }
 }()

 must.Do2(func() (int, int, error) {
  panic(errors.New("error2"))
 })
}

func do3() {
 v, v1, v2 := must.Do3(func() (int, int, int, error) {
  return 1, 2, 3, nil
 })

 fmt.Println(v, v1, v2)

 defer func() {
  if r := recover(); r != nil {
   fmt.Println(r)
  }
 }()

 must.Do3(func() (int, int, int, error) {
  panic(errors.New("error3"))
 })
}

OUTPUT:

1
error1
1 2
error2
1 2 3
error3