navidrome/utils/graph.go

28 lines
556 B
Go

package utils
import (
"github.com/karlkfi/inject"
"reflect"
)
var Graph inject.Graph
var (
definitions map[reflect.Type]interface{}
)
func DefineSingleton(ptr interface{}, constructor interface{}, args ...interface{}) {
typ := reflect.TypeOf(ptr)
if definitions[typ] == nil {
Graph.Define(ptr, inject.NewProvider(constructor, args...))
} else {
Graph.Define(definitions[typ], inject.NewProvider(constructor, args...))
}
definitions[typ] = ptr
}
func init() {
definitions = make(map[reflect.Type]interface{})
Graph = inject.NewGraph()
}