From bc17dd4396c1118d0f3043e9430967f7ef9a301f Mon Sep 17 00:00:00 2001
From: Rico Tzschichholz <ricotz@ubuntu.com>
Date: Tue, 15 May 2018 08:17:43 +0200
Subject: [PATCH] codegen: Avoid critical in get_basic_type_info() when there
 is no signature

https://bugzilla.gnome.org/show_bug.cgi?id=729517
---
 codegen/valagvariantmodule.vala | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/codegen/valagvariantmodule.vala b/codegen/valagvariantmodule.vala
index 7838ea3e9..b6d36b6eb 100644
--- a/codegen/valagvariantmodule.vala
+++ b/codegen/valagvariantmodule.vala
@@ -61,11 +61,13 @@ public class Vala.GVariantModule : GAsyncModule {
 		return symbol.get_attribute_string ("DBus", "signature");
 	}
 
-	bool get_basic_type_info (string signature, out BasicTypeInfo basic_type) {
-		foreach (BasicTypeInfo info in basic_types) {
-			if (info.signature == signature) {
-				basic_type = info;
-				return true;
+	bool get_basic_type_info (string? signature, out BasicTypeInfo basic_type) {
+		if (signature != null) {
+			foreach (BasicTypeInfo info in basic_types) {
+				if (info.signature == signature) {
+					basic_type = info;
+					return true;
+				}
 			}
 		}
 		basic_type = BasicTypeInfo ();
-- 
2.47.2