def __init__(self, applied_to_arg, root_variable):
"""
:param applied_to_arg: spf.mr.lambda_.logical_expr.LogicalExpression,
:param root_variable: spf.mr.lambda_.logical_expr.LogicalExpression,
:return:
"""
super(ApplyAndSimplify, self).__init__(False)
self.applied_once_already = False
self.applied_to_arg = applied_to_arg
self.root_variable = root_variable
self.old_variables_to_new = {}
self.arg_vars = GetVariables.of(self.applied_to_arg)
def term_application(expr, arg):
new_args = [arg]
return Literal(Variable(expr.get_type()) if expr in GetVariables.of(arg) else expr, new_args)
def literal_application(literal, arg):
new_args = [arg for arg in literal.get_arguments()]
new_args.append(ReplaceVariablesIfPresent.of(arg, GetVariables.of(literal)))
return Literal(literal.get_predicate(), new_args)