Method Inject

hero/container.go:397–418

Inject SHOULD only be used outside of HTTP handlers (performance is not priority for this method) as it does not pre-calculate the available list of bindings for the "toPtr" and the registered dependencies. It sets a static-only matching dependency to the value of "toPtr". The parameter "toPtr" SHO

(toPtr interface{})

// var db Database
// err := c.Inject(&db)
func (c *Container) Inject(toPtr interface{}) error {
	val := reflect.Indirect(valueOf(toPtr))
	typ := val.Type()

	for _, d := range c.Dependencies {
		if d.Static && c.DependencyMatcher(d, typ) {
			v, err := d.Handle(nil, &Input{Type: typ})
			if err != nil {
				if err == ErrSeeOther {
					continue
				}

				return err
			}

			val.Set(v)
			return nil
		}
	}

	return ErrMissingDependency
}