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#!/usr/bin/python
#---------------------------------------------------------------
# Project : Mandrake Linux
# Module : share
# File : shadow.py
# Version : $Id$
# Author : Frederic Lepied
# Created On : Sat Jan 26 17:38:39 2002
# Purpose : loads a python module and creates another one
# on stdout. All the functions of the module are shadowed according
# to their doc string: "D" direct mapping, "1" indirect call but
# name + first arg used as the key and all other cases indirect
# call with the name as the key.
#---------------------------------------------------------------
import sys
import imp
import inspect
### strings used in the rewritting
direct_str = """
%s=%s.%s
"""
indirect_str = """
def %s(*args):
indirect(\"%s\", %s.%s, %d, args)
"""
header = """
NONE=0
ALL=1
LOCAL=2
FAKE = {}
def indirect(name, func, type, args):
if type == 1:
key = (name, args[0])
else:
key = name
FAKE[key] = (func, args)
def commit_changes():
for f in FAKE.values():
apply(f[0], f[1])
"""
### code
modulename = sys.argv[1]
module = __import__(modulename)
sys.stdout.write(header)
sys.stdout.write("import %s\n\n" % modulename)
for f in inspect.getmembers(module, inspect.isfunction):
(args, varargs, varkw, locals) = inspect.getargspec(f[1])
if f[1].__doc__ and f[1].__doc__[0] == 'D':
#argspec = inspect.formatargspec(args, varargs, varkw, locals)
s = direct_str % (f[0], modulename, f[0])
else:
if f[1].__doc__ and f[1].__doc__[0] == '1':
type = 1
else:
type = 0
s = indirect_str % (f[0], f[0], modulename, f[0], type)
sys.stdout.write(s)
# shadow.py ends here
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