package main import "guthub.com/morilog/gioc" import "log" import "fmt" func main() { // Bind binds a resolver to abstract type and // the resolver called every time you needed to the type gioc.Bind(func () (Greeter, err) { return &GoodMorning{} }) var g Greeter if err := gioc.Make(&g); err != nil { log.Fatal(err) } fmt.Println(g.SayHello()) // prints "good morning" gioc.Singleton(func (greeter Greeter, c *SimpleClient) (Mailer, error)) { return &simpleMailer(simpleClient: c, g: greeter), nil } var m Mailer if err := gioc.Make(&m); err != nil { log.Fatal(err) } m.Send("receiver@host.com", "don't reply me") } type Greeter interface{ SayHello() string } type Morning struct{} func (g Morning) SayHello() string { return "good morning" } type Mailer interface { Send(to string, msg string) error } type SimpleMailer struct{ g Greeter simpleClient *client } func (s *SimpleMailer) Send(to string, msg string) error { msg = s.g.SayHello() + msg s.simpleClient.SendText(to, msg, "info@example.com") }