fix: update Anonymous stauct

Author: kooksee

example/struct-in/main.go

@@ -10,6 +10,7 @@ import (
 )
 
 type a struct {
+	b
 	B b
 }
 
@@ -29,7 +30,8 @@ func main() {
 	})
 
 	arg := di.Inject(new(a))
-	assert.If(arg.B.C.C != "hello", "not match")
+	assert.If(arg.C.C != "hello", "not match")
+	fmt.Println(arg.C.C)
 	fmt.Println(arg.B.C.C)
 	fmt.Println(di.Graph())
 

internal/dix_inter/dix.go

@@ -296,12 +296,8 @@ func (x *Dix) injectFunc(vp reflect.Value, opt Options) {
 func (x *Dix) injectStruct(vp reflect.Value, opt Options) {
 	tp := vp.Type()
 	for i := 0; i < tp.NumField(); i++ {
-		if !vp.Field(i).CanSet() {
-			continue
-		}
-
 		field := tp.Field(i)
-		if field.Anonymous {
+		if !vp.Field(i).CanSet() && field.Type.Kind() != reflect.Struct {
 			continue
 		}