From 491f75f6e977c0d2520c2a405c473e81a2179ca0 Mon Sep 17 00:00:00 2001
From: Sebastian Hugentobler <sebastian@vanwa.ch>
Date: Mon, 10 Feb 2025 14:45:11 +0100
Subject: [PATCH] add synchronize to rust

---
 rust/rox/src/parser.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/rust/rox/src/parser.rs b/rust/rox/src/parser.rs
index dbd8dae..a2b0079 100644
--- a/rust/rox/src/parser.rs
+++ b/rust/rox/src/parser.rs
@@ -191,6 +191,17 @@ impl Parser {
             Err(ParserError::ExpressionExpected(prev.line))
         }
     }
+
+    fn synchronize(&mut self) {
+        let _ = self.advance();
+        while !self.is_at_end()
+            && self.previous().unwrap().token_type != Semicolon
+            && !&[Class, Fun, Var, For, If, While, Print, Return]
+                .contains(&self.current_token.token_type)
+        {
+            let _ = self.advance();
+        }
+    }
 }
 
 /// Try to parse the provided tokens into an AST.