From 659c2195d2c224122cc8da813bec3af46084b61b Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Fri, 21 Jul 2023 16:20:00 +0800
Subject: regex: Merge the `types` array as well.

* nfa/src/default/regex.rs: Previously when merging regular
  expressoins, only the graphs are merged, but the `types` array
  stayed unchanged.  This caused errors of indices being out of
  bounds.
---
 nfa/src/default/regex.rs | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'nfa/src/default/regex.rs')

diff --git a/nfa/src/default/regex.rs b/nfa/src/default/regex.rs
index 9b5fab1..8185ca5 100644
--- a/nfa/src/default/regex.rs
+++ b/nfa/src/default/regex.rs
@@ -558,6 +558,8 @@ impl<T: GraphLabel> DefaultRegex<T> {
 
             builder_mut.append(other.graph);
 
+            self.types.extend(other.types);
+
             if let Some(root) = self.root {
                 // Deliberately ignore errors here.
                 let _ = builder_mut.add_edge(root, old_len, ());
-- 
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