E0420: A removed way to declare a dependency

A dependency is written one way: a struct with a constructor whose parameters are its own dependencies, registered in main with app.Service(NewX). Hooks and handlers take it as a parameter, by type, as they take the context, the form and the request. @web.Service on a type and the inject: struct tag are gone; the compiler reports them, and vukavet reports an inject: tag in Go.

The constructor Vuka writes for a decorated struct (a controller, a live page) takes its pointer and interface fields, and nothing else: a mutex, a map or a counter is the struct's own, with no tag to say so. A struct needing anything else writes its own New.

Wrong

@web.Service
type Notes struct {
	db   *DB
	mu   sync.Mutex `inject:"-"`
	list []Note     `inject:"-"`
}

Right

type Notes struct {
	db   *DB
	mu   sync.Mutex
	list []Note
}

func NewNotes(db *DB) *Notes { return &Notes{db: db} }

func main() {
	app := web.New()
	app.Service(NewNotes)
	app.Run("")
}