From fbaa420ed550e9c3e7cdc09d4a8ec22bfbd782a6 Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Mon, 27 Feb 2023 12:36:41 +0800
Subject: before a major refactor

I decide to adopt a new approach of recording and updating item
derivation forests.  Since this affects a lot of things, I decide to
commit before the refactor, so that I can create a branch for that
refactor.
---
 grammar/src/label.rs | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'grammar/src/label.rs')

diff --git a/grammar/src/label.rs b/grammar/src/label.rs
index 058baaf..e3f3422 100644
--- a/grammar/src/label.rs
+++ b/grammar/src/label.rs
@@ -119,6 +119,12 @@ impl GrammarLabel {
         self.end
     }
 
+    /// Set the start.
+    #[inline]
+    pub fn set_start(&mut self, pos: usize) {
+        self.start = pos;
+    }
+
     /// Return the start in the input.
     #[inline]
     pub fn start(&self) -> usize {
-- 
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