From b479a2d43953ef8e1b498a3f1c0dac3e32269c69 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 7 Mar 2018 11:49:24 +0000
Subject: [PATCH] complex.c, rational.c: no backref

Since r37702, parsing complex and rational do not use regexp.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62687 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 complex.c  | 7 +------
 rational.c | 7 +------
 2 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/complex.c b/complex.c
index 5474fb1478..b2f206d7ce 100644
--- a/complex.c
+++ b/complex.c
@@ -1869,16 +1869,13 @@ string_to_c(VALUE self)
 static VALUE
 nucomp_s_convert(int argc, VALUE *argv, VALUE klass)
 {
-    VALUE a1, a2, backref;
+    VALUE a1, a2;
 
     rb_scan_args(argc, argv, "11", &a1, &a2);
 
     if (NIL_P(a1) || (argc == 2 && NIL_P(a2)))
 	rb_raise(rb_eTypeError, "can't convert nil into Complex");
 
-    backref = rb_backref_get();
-    rb_match_busy(backref);
-
     if (RB_TYPE_P(a1, T_STRING)) {
 	a1 = string_to_c_strict(a1);
     }
@@ -1887,8 +1884,6 @@ nucomp_s_convert(int argc, VALUE *argv, VALUE klass)
 	a2 = string_to_c_strict(a2);
     }
 
-    rb_backref_set(backref);
-
     if (RB_TYPE_P(a1, T_COMPLEX)) {
 	{
 	    get_dat1(a1);
diff --git a/rational.c b/rational.c
index a946739696..7b7bf396ac 100644
--- a/rational.c
+++ b/rational.c
@@ -2498,7 +2498,7 @@ rb_cstr_to_rat(const char *s, int strict) /* for complex's internal */
 static VALUE
 nurat_s_convert(int argc, VALUE *argv, VALUE klass)
 {
-    VALUE a1, a2, backref;
+    VALUE a1, a2;
 
     rb_scan_args(argc, argv, "11", &a1, &a2);
 
@@ -2515,9 +2515,6 @@ nurat_s_convert(int argc, VALUE *argv, VALUE klass)
 	    a2 = RCOMPLEX(a2)->real;
     }
 
-    backref = rb_backref_get();
-    rb_match_busy(backref);
-
     if (RB_FLOAT_TYPE_P(a1)) {
 	a1 = float_to_r(a1);
     }
@@ -2532,8 +2529,6 @@ nurat_s_convert(int argc, VALUE *argv, VALUE klass)
 	a2 = string_to_r_strict(a2);
     }
 
-    rb_backref_set(backref);
-
     if (RB_TYPE_P(a1, T_RATIONAL)) {
 	if (argc == 1 || (k_exact_one_p(a2)))
 	    return a1;