1 files changed, 4 insertions, 2 deletions
diff --git a/src/3rdparty/masm/yarr/YarrSyntaxChecker.cpp b/src/3rdparty/masm/yarr/YarrSyntaxChecker.cpp
index 9f05f22852..821284b7b1 100644
--- a/src/3rdparty/masm/yarr/YarrSyntaxChecker.cpp
+++ b/src/3rdparty/masm/yarr/YarrSyntaxChecker.cpp
@@ -48,7 +48,9 @@ public:
     void atomParentheticalAssertionBegin(bool = false) {}
     void atomParenthesesEnd() {}
     void atomBackReference(unsigned) {}
-    void atomNamedBackReference(String) {}
+    void atomNamedBackReference(const String&) {}
+    bool isValidNamedForwardReference(const String&) { return true; }
+    void atomNamedForwardReference(const String&) {}
     void quantifyAtom(unsigned, unsigned, bool) {}
     void disjunction() {}
 };
@@ -56,7 +58,7 @@ public:
 ErrorCode checkSyntax(const String& pattern, const String& flags)
 {
     SyntaxChecker syntaxChecker;
-    return parse(syntaxChecker, pattern, flags.contains('u'));
+    return parse(syntaxChecker, pattern, flags.contains(u'u'));
 }
 
 }} // JSC::Yarr