nobu	2018-06-01 15:53:26 +0900 (Fri, 01 Jun 2018)

  New Revision: 63543

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63543

  Log:
    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.

  Modified files:
    trunk/string.c
Index: string.c
===================================================================
--- string.c	(revision 63542)
+++ string.c	(revision 63543)
@@ -4724,7 +4724,7 @@ rb_str_aset(VALUE str, VALUE indx, VALUE https://github.com/ruby/ruby/blob/trunk/string.c#L4724
     }
 
     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, https://github.com/ruby/ruby/blob/trunk/string.c#L9628
 
     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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