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# -*- coding: utf-8 -*-
#
# AWL simulator - Block interface definition
#
# Copyright 2016-2017 Michael Buesch <m@bues.ch>
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
from awlsim.common.compat import *
from awlsim.common.util import *
class AwlInterfFieldDef(object):
def __init__(self, name="", typeStr="", initValueStr="", comment=""):
self.name = name
self.typeStr = typeStr
self.initValueStr = initValueStr
self.comment = comment
def isValid(self):
return self.name and self.typeStr
class AwlInterfDef(object):
def __init__(self):
self.clear()
def clear(self):
self.inFields = []
self.outFields = []
self.inOutFields = []
self.statFields = []
self.tempFields = []
self.retValField = None
def isEmpty(self):
"""Returns True, if the interface is empty.
That is if it does not contain fields and RET_VAL is VOID.
"""
retEmpty = not self.retValField or (
self.retValField.typeStr.upper().strip() == "VOID" and\
not self.retValField.initValueStr.strip() and\
not self.retValField.comment.strip())
return not self.inFields and\
not self.outFields and\
not self.inOutFields and\
not self.statFields and\
not self.tempFields and\
retEmpty
@property
def allFields(self):
"""Get all fields.
"""
for field in itertools.chain(self.inFields,
self.outFields,
self.inOutFields,
self.statFields,
self.tempFields,
[self.retValField]):
if field:
yield field
def findByName(self, name, caseSensitive=False, strip=True):
"""Find a field by its name.
caseSensitive => Do a case sensitive match
strip => Strip the name and remove leading #
"""
if strip:
name = name.strip() # Strip leading and trailing white space
if name.startswith("#"):
name = name[1:] # Strip #-prefix
for field in self.allFields:
fieldName = field.name
if not caseSensitive:
fieldName = fieldName.upper()
name = name.upper()
if fieldName == name:
return field # Found it
return None
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