Minor code refactor in Python traits_asptr::asptr

Author: wsfulton

Lib/python/pystdcommon.swg

@@ -45,23 +45,22 @@ namespace swig {
   template <class Type>
   struct traits_asptr {   
     static int asptr(PyObject *obj, Type **val) {
+      int res = SWIG_ERROR;
+      swig_type_info *descriptor = type_info<Type>();
       if (val) {
         Type *p = 0;
-        swig_type_info *descriptor = type_info<Type>();
         int newmem = 0;
-        int res = descriptor ? SWIG_ConvertPtrAndOwn(obj, (void **)&p, descriptor, 0, &newmem) : SWIG_ERROR;
+        res = descriptor ? SWIG_ConvertPtrAndOwn(obj, (void **)&p, descriptor, 0, &newmem) : SWIG_ERROR;
         if (SWIG_IsOK(res)) {
           if (newmem & SWIG_CAST_NEW_MEMORY) {
             res |= SWIG_NEWOBJMASK;
           }
           *val = p;
         }
-        return res;
       } else {
-        swig_type_info *descriptor = type_info<Type>();
-        int res = descriptor ? SWIG_ConvertPtr(obj, 0, descriptor, 0) : SWIG_ERROR;
-        return res;
+        res = descriptor ? SWIG_ConvertPtr(obj, 0, descriptor, 0) : SWIG_ERROR;
       }
+      return res;
     }
   };