#! /bin/env python3
# encoding: utf-8

import sys
import traceback

from . import text

_print = text.Output('over.core', stream=sys.stderr)

class DeprecationForwarder:
	def __init__(self, target, old_name, new_name):
		self._target = target
		self._old_name = old_name
		self._new_name = new_name
	
	def __getattr__(self, name):
		caller = traceback.extract_stack()[-2]
		_print('%s is deprecated, please use %s instead (%s:%d)' %(self._old_name, self._new_name, caller[0], caller[1]), text.prefix.warn)
		return getattr(self._target, name)