From 621203d3239adf80fea769eda93f727cc6f4ac5a Mon Sep 17 00:00:00 2001
From: SoniEx2 <endermoneymod@gmail.com>
Date: Sun, 23 Feb 2020 19:53:25 -0300
Subject: Fix infinite matches on empty patterns

---
 abdl/_vm.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'abdl/_vm.py')

diff --git a/abdl/_vm.py b/abdl/_vm.py
index 1de2e15..f8b8c80 100644
--- a/abdl/_vm.py
+++ b/abdl/_vm.py
@@ -289,7 +289,8 @@ def match_helper(ops, defs, tree):
                     res[h.name] = (h.key, h.value)
             yield res
             assert len(path) == 1 or isinstance(frame.current_op, End)
-            frame.prev()
+            if not frame.prev():
+                return
             in_key = True
         else:
             if in_key:
-- 
cgit 1.4.1