From 8f9627d1a19c58a1d416eabaeaf599c8ff4bd84d Mon Sep 17 00:00:00 2001
From: overlookmotel <557937+overlookmotel@users.noreply.github.com>
Date: Thu, 5 Sep 2024 16:04:42 +0000
Subject: [PATCH] fix(transformer): RegExp transform do not transform invalid
 regexps (#5494)

Treat invalid regexps the same regardless of whether they have unsupported flags or not - don't transform them.
---
 crates/oxc_transformer/src/regexp/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/oxc_transformer/src/regexp/mod.rs b/crates/oxc_transformer/src/regexp/mod.rs
index 1ec97337b..6aa6a17f6 100644
--- a/crates/oxc_transformer/src/regexp/mod.rs
+++ b/crates/oxc_transformer/src/regexp/mod.rs
@@ -150,8 +150,9 @@ impl<'a> Traverse<'a> for RegExp<'a> {
         }
 
         let pattern_source: Cow<'_, str> = match &regexp.regex.pattern {
-            RegExpPattern::Raw(raw) | RegExpPattern::Invalid(raw) => Cow::Borrowed(raw),
+            RegExpPattern::Raw(raw) => Cow::Borrowed(raw),
             RegExpPattern::Pattern(p) => Cow::Owned(p.to_string()),
+            RegExpPattern::Invalid(_) => return,
         };
 
         let callee = {