https://git.ruby-lang.org/ruby.git/commit/?id=6aa466ba9c

From 6aa466ba9cf3a0a597716bf7584735ca980622d0 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <tenderlove@r...>
Date: Fri, 2 Oct 2020 10:54:31 -0700
Subject: mark regex internal to string scanner


diff --git a/ext/strscan/strscan.c b/ext/strscan/strscan.c
index 61c8d89..db87818 100644
--- a/ext/strscan/strscan.c
+++ b/ext/strscan/strscan.c
@@ -176,6 +176,7 @@ strscan_mark(void *ptr) https://github.com/ruby/ruby/blob/trunk/ext/strscan/strscan.c#L176
 {
     struct strscanner *p = ptr;
     rb_gc_mark(p->str);
+    rb_gc_mark(p->regex);
 }
 
 static void
@@ -212,6 +213,7 @@ strscan_s_allocate(VALUE klass) https://github.com/ruby/ruby/blob/trunk/ext/strscan/strscan.c#L213
     CLEAR_MATCH_STATUS(p);
     onig_region_init(&(p->regs));
     p->str = Qnil;
+    p->regex = Qnil;
     return obj;
 }
 
@@ -1168,7 +1170,7 @@ strscan_aref(VALUE self, VALUE idx) https://github.com/ruby/ruby/blob/trunk/ext/strscan/strscan.c#L1170
             idx = rb_sym2str(idx);
             /* fall through */
         case T_STRING:
-            if (!p->regex) return Qnil;
+            if (!RTEST(p->regex)) return Qnil;
             RSTRING_GETMEM(idx, name, i);
             i = name_to_backref_number(&(p->regs), p->regex, name, name + i, rb_enc_get(idx));
             break;
-- 
cgit v0.10.2


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