/usr/share/pyshared/csa/closure.py is in python-csa 0.1.0-1.1.
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# This file is part of the Connection-Set Algebra (CSA).
# Copyright (C) 2010,2011,2012 Mikael Djurfeldt
#
# CSA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# CSA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
from csaobject import *
import inspect
try:
from lxml import etree
from lxml.builder import E
except ImportError:
pass
class Closure (CSAObject):
tag = 'closure'
name = tag
def __init__ (self, formals, e):
self.formals = formals
self.etree = e
@staticmethod
def formalToXML (formal):
return E ('bvar', E ('ci', formal))
def _to_xml (self):
formals = map (Closure.formalToXML, self.formals)
return E ('bind', E ('closure'), *formals + [ self.etree ])
def __call__ (self, *args):
assert len (args) == len (self.formals), "arguments %s don't match formals %s" % (args, self.formals)
bindings = {}
for (formal, arg) in map (None, self.formals, args):
bindings[formal] = arg
return CSAObject.from_xml (self.etree, bindings)
registerTag (Closure.tag, Closure, BINDOPERATOR)
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