use checked addition to not panic in debug build

servo · Nov 7, 2023 · 1fc48e9 · 1fc48e9
1 parent 64ec072
commit 1fc48e9
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/idna/src/punycode.rs b/idna/src/punycode.rs
@@ -269,10 +269,7 @@ where
         for c in input.clone() {
             let c = c as u32;
             if c < code_point {
-                delta += 1;
-                if delta == 0 {
-                    return Err(()); // Overflow
-                }
+                delta = delta.checked_add(1).ok_or(())?;
             }
             if c == code_point {
                 // Represent delta as a generalized variable-length integer: