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ncptl_ast.py
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ncptl_ast.py
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########################################################################
#
# Simple abstract syntax tree node for the coNCePTuaL language
#
# By Scott Pakin <[email protected]>
#
# ----------------------------------------------------------------------
#
#
# Copyright (C) 2015, Los Alamos National Security, LLC
# All rights reserved.
#
# Copyright (2015). Los Alamos National Security, LLC. This software
# was produced under U.S. Government contract DE-AC52-06NA25396
# for Los Alamos National Laboratory (LANL), which is operated by
# Los Alamos National Security, LLC (LANS) for the U.S. Department
# of Energy. The U.S. Government has rights to use, reproduce,
# and distribute this software. NEITHER THE GOVERNMENT NOR LANS
# MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR ASSUMES ANY LIABILITY
# FOR THE USE OF THIS SOFTWARE. If software is modified to produce
# derivative works, such modified software should be clearly marked,
# so as not to confuse it with the version available from LANL.
#
# Additionally, redistribution and use in source and binary forms,
# with or without modification, are permitted provided that the
# following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of Los Alamos National Security, LLC, Los Alamos
# National Laboratory, the U.S. Government, nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY LANS AND CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL LANS OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#
########################################################################
import sys
import string
class AST:
def __init__(self, type, left=None, right=None, kids=[]):
self.type = string.lower(type.type)
self.printable = type.printable
self.attr = type.attr
self.kids = kids + []
self.left = left
self.right = right
if left:
self.kids.append(left)
if right:
self.kids.append(right)
all_lineno0 = map(lambda a: a.lineno0, self.kids)
all_lineno1 = map(lambda a: a.lineno1, self.kids)
if type.lineno != -1:
all_lineno0.append(type.lineno)
all_lineno1.append(type.lineno)
if hasattr(type, "lineno0"):
all_lineno0.append(type.lineno0)
if hasattr(type, "lineno1"):
all_lineno1.append(type.lineno1)
if all_lineno0==[] or all_lineno1==[]:
# Whoever created the AST needs to assign us real line numbers.
self.lineno0 = -1
self.lineno1 = -1
else:
self.lineno0 = min(all_lineno0)
self.lineno1 = max(all_lineno1)
def __getitem__(self, i):
return self.kids[i]