grammar/label: `set_end_option`

* grammar/src/label.rs (set_end_option): This function replaces the
  old function `open_end`, as this new function is more general than
  the old one, and there is no specific situation where we only need
  to open the end of a node without the need to close the node in an
  `if` statement.

1 files changed, 3 insertions, 3 deletions

diff --git a/grammar/src/label.rs b/grammar/src/label.rs
index e3f3422..fd626cd 100644
--- a/grammar/src/label.rs
+++ b/grammar/src/label.rs
@@ -143,10 +143,10 @@ impl GrammarLabel {
         self.end = Some(end);
     }
 
-    /// Remove the ending boundary.
+    /// Set the end according to an option directly.
     #[inline]
-    pub fn open_end(&mut self) {
-        self.end = None;
+    pub fn set_end_option(&mut self, end: Option<usize>) {
+        self.end = end;
     }
 
     /// Return a string description with the help of the associated