From ce2f4f852692a1583cbe15877f0c0f2384d53c0f Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 1 Jun 2018 06:53:26 +0000
Subject: string.c: trivial optimizations

* string.c (rb_str_aset): prefer BUILTIN_TYPE over TYPE after
  SPECIAL_CONST_P check.

* string.c (rb_str_start_with): prefer RB_TYPE_P over switch by
  TYPE.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63543 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 string.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/string.c b/string.c
index 3bd6c74b35..36126eb805 100644
--- a/string.c
+++ b/string.c
@@ -4724,7 +4724,7 @@ rb_str_aset(VALUE str, VALUE indx, VALUE val)
     }
 
     if (SPECIAL_CONST_P(indx)) goto generic;
-    switch (TYPE(indx)) {
+    switch (BUILTIN_TYPE(indx)) {
       case T_REGEXP:
 	rb_str_subpat_set(str, indx, INT2FIX(0), val);
 	return val;
@@ -9628,14 +9628,11 @@ rb_str_start_with(int argc, VALUE *argv, VALUE str)
 
     for (i=0; i<argc; i++) {
 	VALUE tmp = argv[i];
-	switch (TYPE(tmp)) {
-	  case T_REGEXP:
-	    {
-		bool r = rb_reg_start_with_p(tmp, str);
-		if (r) return Qtrue;
-	    }
-	    break;
-	  default:
+	if (RB_TYPE_P(tmp, T_REGEXP)) {
+	    if (rb_reg_start_with_p(tmp, str))
+		return Qtrue;
+	}
+	else {
 	    StringValue(tmp);
 	    rb_enc_check(str, tmp);
 	    if (RSTRING_LEN(str) < RSTRING_LEN(tmp)) continue;
-- 
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