Fix parsing field types for when we have generic method receivers

parser/class_parser.go

@@ -220,17 +220,19 @@ func (p *ClassParser) parsePackage(node ast.Node) {
 	for fileName := range pack.Files {
 		sortedFiles = append(sortedFiles, fileName)
 	}
+
 	sort.Strings(sortedFiles)
 	for _, fileName := range sortedFiles {
+		if strings.HasSuffix(fileName, "_test.go") {
+			continue
+		}
 
-		if !strings.HasSuffix(fileName, "_test.go") {
-			f := pack.Files[fileName]
-			for _, d := range f.Imports {
-				p.parseImports(d)
-			}
-			for _, d := range f.Decls {
-				p.parseFileDeclarations(d)
-			}
+		f := pack.Files[fileName]
+		for _, d := range f.Imports {
+			p.parseImports(d)
+		}
+		for _, d := range f.Decls {
+			p.parseFileDeclarations(d)
 		}
 	}
 }

parser/field.go

@@ -40,10 +40,22 @@ func getFieldType(exp ast.Expr, aliases map[string]string) (string, []string) {
 		return getFuncType(v, aliases)
 	case *ast.Ellipsis:
 		return getEllipsis(v, aliases)
+	case *ast.IndexExpr:
+		return getIndexExpr(v, aliases)
+	case *ast.IndexListExpr:
+		return getIndexListExpr(v, aliases)
 	}
 	return "", []string{}
 }
 
+func getIndexExpr(v *ast.IndexExpr, aliases map[string]string) (string, []string) {
+	return getFieldType(v.X, aliases)
+}
+
+func getIndexListExpr(v *ast.IndexListExpr, aliases map[string]string) (string, []string) {
+	return getFieldType(v.X, aliases)
+}
+
 func getIdent(v *ast.Ident, aliases map[string]string) (string, []string) {
 	if isPrimitive(v) {
 		return v.Name, []string{}