add a missing Readonly

tjenkinson · Jan 14, 2023 · 900d6fa · 900d6fa
1 parent cea0728
commit 900d6fa
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/character-reader/character-reader-level-2.ts b/src/character-reader/character-reader-level-2.ts
@@ -168,10 +168,10 @@ type State = Readonly<{
   groupsWithInfiniteSize: ReadonlySet<number>;
   preceedingZeroWidthEntries: readonly ZeroWidthEntry[];
   quantifierIterationsAtLastGroup: QuantifierIterations;
-  referenceCharacterReaderWithReference: {
+  referenceCharacterReaderWithReference: Readonly<{
     reader: InternalReader;
     reference: Reference;
-  } | null;
+  }> | null;
 }>;
 
 function* characterReaderLevel1ToInternalReader(