From: Jean Privat <jean@pryen.org>
Date: Sat, 26 Sep 2015 05:29:22 +0000 (-0400)
Subject: ordered_tree: avoid abort if subs is empty
X-Git-Tag: v0.7.8~5^2~1
X-Git-Url: http://nitlanguage.org

ordered_tree: avoid abort if subs is empty

Signed-off-by: Jean Privat <jean@pryen.org>
---

diff --git a/lib/ordered_tree.nit b/lib/ordered_tree.nit
index 0b1d383..32cea45 100644
--- a/lib/ordered_tree.nit
+++ b/lib/ordered_tree.nit
@@ -149,6 +149,7 @@ class OrderedTree[E: Object]
 	do
 		if not sub.has_key(e) then return
 		var subs = sub[e]
+		if subs.is_empty then return
 		var last = subs.last
 		for e2 in subs do
 			if e2 != last then