From f6d46291036881a5a924d2532bff3df6aaca213e Mon Sep 17 00:00:00 2001
From: "David V. Wallin" <david@dwall.in>
Date: Thu, 10 Sep 2015 11:35:57 +0200
Subject: [PATCH] added a check to parser to not panic

---
 parser.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/parser.go b/parser.go
index cf8dee22..7d55ffe3 100644
--- a/parser.go
+++ b/parser.go
@@ -77,7 +77,10 @@ func parserPkg(pkgRealpath, pkgpath string) error {
 				switch specDecl := d.(type) {
 				case *ast.FuncDecl:
 					if specDecl.Recv != nil {
-						parserComments(specDecl.Doc, specDecl.Name.String(), fmt.Sprint(specDecl.Recv.List[0].Type.(*ast.StarExpr).X), pkgpath)
+						exp, ok := specDecl.Recv.List[0].Type.(*ast.StarExpr) // Check that the type is correct first beforing throwing to parser
+						if ok {
+							parserComments(specDecl.Doc, specDecl.Name.String(), fmt.Sprint(exp.X), pkgpath)
+						}
 					}
 				}
 			}