must

README

go-must

general utilities for "Must" pattern. It simplifies safe initialization, handling errors in test, and so on.

Installation

This package uses generics, so you need to use Go 1.18 or later.

go get github.com/uechoco/go-must

Example Usage

import (
	"time"
	"github.com/uechoco/go-must"
)

func TestExample(t *testing.T) {
	tm := must.Get2(time.Parse(time.RFC3339, "2020-01-01T00:00:00Z"))
	fmt.Println(tm)
}

Documentation

Overview

Example (ParseFloat)

v, _ := must.Get3(big.ParseFloat("1.2345678", 10, 1000, big.ToNearestEven))
fmt.Println(v)

Output:

1.2345678

Example (TimeParse)

tm := must.Get2(time.Parse(time.RFC3339, "2020-01-01T11:22:33Z"))
fmt.Println(tm)

Output:

2020-01-01 11:22:33 +0000 UTC

Index

• func Get2[T1 any](v1 T1, err error) T1
• func Get3[T1, T2 any](v1 T1, v2 T2, err error) (T1, T2)
• func Get4[T1, T2, T3 any](v1 T1, v2 T2, v3 T3, err error) (T1, T2, T3)
• func Get5[T1, T2, T3, T4 any](v1 T1, v2 T2, v3 T3, v4 T4, err error) (T1, T2, T3, T4)
• func Get6[T1, T2, T3, T4, T5 any](v1 T1, v2 T2, v3 T3, v4 T4, v5 T5, err error) (T1, T2, T3, T4, T5)
• func Get7[T1, T2, T3, T4, T5, T6 any](v1 T1, v2 T2, v3 T3, v4 T4, v5 T5, v6 T6, err error) (T1, T2, T3, T4, T5, T6)

Examples

• Package (ParseFloat)
• Package (TimeParse)

Functions

func Get2

func Get2[T1 any](v1 T1, err error) T1

func Get3

func Get3[T1, T2 any](v1 T1, v2 T2, err error) (T1, T2)

func Get4

func Get4[T1, T2, T3 any](v1 T1, v2 T2, v3 T3, err error) (T1, T2, T3)

func Get5

func Get5[T1, T2, T3, T4 any](v1 T1, v2 T2, v3 T3, v4 T4, err error) (T1, T2, T3, T4)

func Get6

func Get6[T1, T2, T3, T4, T5 any](v1 T1, v2 T2, v3 T3, v4 T4, v5 T5, err error) (T1, T2, T3, T4, T5)

func Get7

func Get7[T1, T2, T3, T4, T5, T6 any](v1 T1, v2 T2, v3 T3, v4 T4, v5 T5, v6 T6, err error) (T1, T2, T3, T4, T5, T6)