From 860417fb4fb9917fd08a6df2d70ab5c22935cfa8 Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Fri, 16 Jul 2021 14:36:52 -0400
Subject: [PATCH] LibJS: Ensure RegExpStringIterator keeps the RegExp matcher
 object alive

Fixes a crash found with 'test-js -g' due to this object going out of
scope.
---
 Userland/Libraries/LibJS/Runtime/RegExpStringIterator.cpp | 6 ++++++
 Userland/Libraries/LibJS/Runtime/RegExpStringIterator.h   | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.cpp b/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.cpp
index 573e7bb32e..ed5a0bcdd2 100644
--- a/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.cpp
+++ b/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.cpp
@@ -24,4 +24,10 @@ RegExpStringIterator::RegExpStringIterator(Object& prototype, Object& regexp_obj
 {
 }
 
+void RegExpStringIterator::visit_edges(Cell::Visitor& visitor)
+{
+    Object::visit_edges(visitor);
+    visitor.visit(&m_regexp_object);
+}
+
 }
diff --git a/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.h b/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.h
index 876dd796a9..fec3bd44e3 100644
--- a/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.h
+++ b/Userland/Libraries/LibJS/Runtime/RegExpStringIterator.h
@@ -28,6 +28,8 @@ public:
     void set_done() { m_done = true; }
 
 private:
+    virtual void visit_edges(Cell::Visitor&) override;
+
     Object& m_regexp_object;
     String m_string;
     bool m_global { false };