udpate to go1.23, handle aliases in Universe scope

Author: monoidic

go.mod

@@ -1,10 +1,10 @@
 module github.com/monoidic/go-api-parser
 
-go 1.22.0
+go 1.23.2
 
 require (
-	golang.org/x/mod v0.19.0
-	golang.org/x/tools v0.23.0
+	golang.org/x/mod v0.21.0
+	golang.org/x/tools v0.26.0
 )
 
-require golang.org/x/sync v0.7.0 // indirect
+require golang.org/x/sync v0.8.0 // indirect

go.sum

@@ -1,6 +1,6 @@
-golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8=
-golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
-golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg=
-golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI=
+golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
+golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
+golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ=
+golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/tools v0.26.0 h1:v/60pFQmzmT9ExmjDv2gGIfi3OqfKoEP6I5+umXlbnQ=
+golang.org/x/tools v0.26.0/go.mod h1:TPVVj70c7JJ3WCazhD8OdXcZg/og+b9+tH/KxylGwH0=

parse.go

@@ -1,5 +1,3 @@
-//go:debug gotypesalias=1
-
 package main
 
 import (
@@ -204,7 +202,7 @@ func (pkg *pkgData) getTypeName(iface types.Type, name string) string {
 	switch dt := iface.(type) {
 	case *types.Named:
 		obj := dt.Obj()
-		if pkg := obj.Pkg(); pkg == nil {
+		if obj.Pkg() == nil {
 			// universe scope
 			return obj.Name()
 		}
@@ -288,7 +286,12 @@ func (pkg *pkgData) parseStruct(name string, obj *types.Struct, typeParams *type
 }
 
 func getTypeName(tn *types.TypeName) string {
-	return fmt.Sprintf("%s.%s", tn.Pkg().Path(), tn.Name())
+	pkg := tn.Pkg()
+	if pkg == nil {
+		// universe scope
+		return tn.Name()
+	}
+	return fmt.Sprintf("%s.%s", pkg.Path(), tn.Name())
 }
 
 func getTypeParamArr(typeParams *types.TypeParamList) []string {