From a19830c42ce839ac1b4557cc30fe78757447f66c Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 15 Aug 2015 02:30:56 +0000
Subject: [PATCH] range.c: call range_include directly if possible

* range.c (range_eqq): trivial optimization to jump to
  range_include directly if the method is not redefined.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51585 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 range.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/range.c b/range.c
index 8f48cd9089..0dc0fb89fe 100644
--- a/range.c
+++ b/range.c
@@ -23,6 +23,7 @@ static ID id_beg, id_end, id_excl, id_integer_p, id_div;
 #define id_succ idSucc
 
 static VALUE r_cover_p(VALUE, VALUE, VALUE, VALUE);
+static VALUE range_include(VALUE range, VALUE val);
 
 #define RANGE_BEG(r) (RSTRUCT(r)->as.ary[0])
 #define RANGE_END(r) (RSTRUCT(r)->as.ary[1])
@@ -1134,7 +1135,12 @@ range_inspect(VALUE range)
 static VALUE
 range_eqq(VALUE range, VALUE val)
 {
-    return rb_funcall(range, rb_intern("include?"), 1, val);
+    ID pred;
+    CONST_ID(pred, "include?");
+    if (rb_method_basic_definition_p(RBASIC_CLASS(range), pred)) {
+	return range_include(range, val);
+    }
+    return rb_funcall(range, pred, 1, val);
 }