Revert "Revert nil error and adding deprecation message"

This reverts commit 452bee3ee8d68059fabd9b1c7a75661b14e3933e.

1 files changed, 1 insertions, 7 deletions

diff --git a/re.c b/re.c
index e10901b83d..6dfb9f273f 100644
--- a/re.c
+++ b/re.c
@@ -3299,9 +3299,7 @@ rb_reg_match_m(int argc, VALUE *argv, VALUE re)
 	pos = 0;
     }
 
-    if (NIL_P(str)) {
-        rb_warn("given argument is nil");
-    }
+    str = SYMBOL_P(str) ? rb_sym2str(str) : StringValue(str);
     pos = reg_match_pos(re, &str, pos);
     if (pos < 0) {
 	rb_backref_set(Qnil);
@@ -3347,10 +3345,6 @@ rb_reg_match_p(VALUE re, VALUE str, long pos)
     const UChar *start, *end;
     int tmpreg;
 
-    if (NIL_P(str)) {
-        rb_warn("given argument is nil");
-        return Qfalse;
-    }
     str = SYMBOL_P(str) ? rb_sym2str(str) : StringValue(str);
     if (pos) {
 	if (pos < 0) {