# Copyright 2008 Nanorex, Inc.  See LICENSE file for details. 
"""
$Id$

"""

__author__ = "EricM"

import types
import Numeric

cdef extern from "Python.h":
	int PyType_Check(obj)
	int PyCallable_Check(obj)
	int PyList_Check(obj)

cdef extern from "samevalshelp.c":
	int c_setArrayType(object atype)
	int c_setInstanceCopier(object copier)
	int c_setArrayCopier(object copier)
	int c_setInstanceLikeClasses(object classList)
	object c_same_vals(object o1, object o2)
	object c_copy_val(object obj)

def same_vals(o1, o2):
	return c_same_vals(o1, o2)

def copy_val(obj):
	return c_copy_val(obj)

def setArrayType(atype):
	if (PyType_Check(atype)):
		c_setArrayType(atype)
	else:
		raise TypeError, "argument must be a type"

def setInstanceCopier(copier):
	if (PyCallable_Check(copier)):
		c_setInstanceCopier(copier)
	else:
		raise TypeError, "argument must be executable"

def setArrayCopier(copier):
	if (PyCallable_Check(copier)):
		c_setArrayCopier(copier)
	else:
		raise TypeError, "argument must be executable"

def setInstanceLikeClasses(classList):
	if (PyList_Check(classList)):
		c_setInstanceLikeClasses(classList)
	else:
		raise TypeError, "argument must be a list"