From a829b7a6273ae1d8c7e4c45587bf47d76c066fed Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Fri, 5 Aug 2011 13:40:43 -0500
Subject: macro-ize

---
 XS.xs | 36 +++++++++++++++++++++++++++++-------
 1 file changed, 29 insertions(+), 7 deletions(-)

diff --git a/XS.xs b/XS.xs
index ea1a402..2c9639e 100644
--- a/XS.xs
+++ b/XS.xs
@@ -28,6 +28,30 @@
 #define GvCV_set(gv, cv) (GvCV(gv) = (CV*)(cv))
 #endif
 
+#ifndef SVT_SCALAR
+#define SVT_SCALAR(svt) (svt <= SVt_PVLV)
+#endif
+
+#ifndef SVT_ARRAY
+#define SVT_ARRAY(svt) (svt == SVt_PVAV)
+#endif
+
+#ifndef SVT_HASH
+#define SVT_HASH(svt) (svt == SVt_PVHV)
+#endif
+
+#ifndef SVT_CODE
+#define SVT_CODE(svt) (svt == SVt_PVCV)
+#endif
+
+#ifndef SVT_IO
+#define SVT_IO(svt) (svt == SVt_PVIO)
+#endif
+
+#ifndef SVT_FORMAT
+#define SVT_FORMAT(svt) (svt == SVt_PVFM)
+#endif
+
 /* HACK: scalar slots are always populated on perl < 5.10, so treat undef
  * as nonexistent. this is consistent with the previous behavior of the pure
  * perl version of this module (since this is the behavior that perl sees
@@ -217,17 +241,15 @@ static int _valid_for_type(SV *value, vartype_t type)
 
     switch (type) {
     case VAR_SCALAR:
-        return sv_type != SVt_PVAV && sv_type != SVt_PVHV &&
-               sv_type != SVt_PVCV && sv_type != SVt_PVFM &&
-               sv_type != SVt_PVIO;
+        return SVT_SCALAR(sv_type);
     case VAR_ARRAY:
-        return sv_type == SVt_PVAV;
+        return SVT_ARRAY(sv_type);
     case VAR_HASH:
-        return sv_type == SVt_PVHV;
+        return SVT_HASH(sv_type);
     case VAR_CODE:
-        return sv_type == SVt_PVCV;
+        return SVT_CODE(sv_type);
     case VAR_IO:
-        return sv_type == SVt_PVIO;
+        return SVT_IO(sv_type);
     default:
         return 0;
     }
-- 
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