dix

README

dix

dix是一个参考了dig设计的依赖注入工具

dix和dig的主要区别在于dix能够完成更加复杂的依赖注入管理和namespace依赖隔离

使用

package main

import (
	"fmt"
	"log"
	"os"

	"github.com/pubgo/dix"
	"github.com/pubgo/xerror"
)

type Redis struct {
	Name string
}

type Handler struct {
	Name string
	// 如果是结构体，且tag为dix，那么，会检查结构体内部有指针或者接口属性，然后进行对象注入
	Cli  *Redis `inject:""`
	Cli1 *Redis `inject:"${.Name}"`
}

func main() {
	defer xerror.RecoverAndExit()

	dix.Register(func() *log.Logger {
		return log.New(os.Stderr, "", log.LstdFlags|log.Llongfile)
	})

	dix.Register(func(l *log.Logger) map[string]*Redis {
		l.Println("init redis")
		return map[string]*Redis{
			"default": {Name: "hello"},
		}
	})

	dix.Register(func(l *log.Logger) map[string]*Redis {
		l.Println("init redis")
		return map[string]*Redis{
			"ns": {Name: "hello1"},
		}
	})

	dix.Register(func(r *Redis, l *log.Logger, rr map[string]*Redis) {
		l.Println("invoke redis")
		fmt.Println("invoke:", r.Name)
		fmt.Println("invoke:", rr)
	})

	var h = Handler{Name: "ns"}
	dix.Inject(&h)
	xerror.Assert(h.Cli.Name != "hello", "inject error")
	xerror.Assert(h.Cli1.Name != "hello1", "inject error")
	dix.Invoke()
	fmt.Println(dix.Graph())
}

Documentation

Index

• Constants
• type Dix
  • func New(opts ...Option) *Dix
• type Graph
• type Option
  • func WithValuesNull() Option
• type Options

Constants

const (
	InjectMethodPrefix = dix_inter.InjectMethodPrefix
)

Types

type Dix

type Dix = dix_inter.Dix

func New

func New(opts ...Option) *Dix

type Graph

type Graph = dix_inter.Graph

type Option

type Option = dix_inter.Option

func WithValuesNull

func WithValuesNull() Option

type Options

type Options = dix_inter.Options