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# -*- coding: utf-8 -*-
#
# AWL simulator - FUP compiler - Interface
#
# Copyright 2016 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.namevalidation import *
from awlsim.common.xmlfactory import *
from awlsim.fupcompiler.fupcompiler_base import *
class FupCompiler_InterfFactory(XmlFactory):
def parser_open(self, tag=None):
self.inSection = "interface"
self.interf.reset()
XmlFactory.parser_open(self, tag)
def parser_beginTag(self, tag):
interf = self.interf
def mkField(tag):
return FupCompiler_InterfField(
name=tag.getAttr("name", ""),
typeStr=tag.getAttr("type", ""),
initValueStr=tag.getAttr("init", ""),
comment=tag.getAttr("comment", ""))
if self.inSection == "interface":
if tag.name in {"inputs", "outputs", "inouts",
"stats", "temps", "retval"}:
self.inSection = tag.name
return
elif self.inSection == "inputs":
if tag.name == "field":
interf.inFields.append(mkField(tag))
return
elif self.inSection == "outputs":
if tag.name == "field":
interf.outFields.append(mkField(tag))
return
elif self.inSection == "inouts":
if tag.name == "field":
interf.inOutFields.append(mkField(tag))
return
elif self.inSection == "stats":
if tag.name == "field":
interf.statFields.append(mkField(tag))
return
elif self.inSection == "temps":
if tag.name == "field":
interf.tempFields.append(mkField(tag))
return
elif self.inSection == "retval":
if tag.name == "field":
interf.retValField = mkField(tag)
return
XmlFactory.parser_beginTag(self, tag)
def parser_endTag(self, tag):
if self.inSection == "interface":
if tag.name == self.inSection:
self.parser_finish()
return
else:
if tag.name == self.inSection:
self.inSection = "interface"
return
if tag.name == "field":
return
XmlFactory.parser_endTag(self, tag)
class FupCompiler_InterfField(object):
def __init__(self, name="", typeStr="", initValueStr="", comment=""):
self.name = name
self.typeStr = typeStr
self.initValueStr = initValueStr
self.comment = comment
class FupCompiler_Interf(FupCompiler_BaseObj):
factory = FupCompiler_InterfFactory
def __init__(self, compiler):
FupCompiler_BaseObj.__init__(self)
self.compiler = compiler # FupCompiler
self.reset()
def reset(self):
self.inFields = []
self.outFields = []
self.inOutFields = []
self.statFields = []
self.tempFields = []
self.retValField = None
@property
def allFields(self):
for field in itertools.chain(self.inFields,
self.outFields,
self.inOutFields,
self.statFields,
self.tempFields,
[ self.retValField ]):
if field:
yield field
def __compileFields(self, declStr, fields):
if not fields:
return []
awlLines = [ "\t" + declStr, ]
for field in fields:
varName = field.name
typeStr = field.typeStr
comment = field.comment
if not AwlName.isValidVarName(varName):
raise AwlSimError("FupCompiler_Interf: Variable name "
"'%s' contains invalid characters." %\
varName)
if not AwlName.mayBeValidType(typeStr):
raise AwlSimError("FupCompiler_Interf: Variable type "
"'%s' contains invalid characters." %\
typeStr)
if not AwlName.isValidComment(comment):
raise AwlSimError("FupCompiler_Interf: Comment "
"'%s' contains invalid characters." %\
comment)
awlLines.append("\t\t%s : %s;%s" %(
varName, typeStr,
(" // " + comment) if comment else ""))
awlLines.append("\tEND_VAR")
return awlLines
def compile(self):
"""Compile this FUP interface declaration to AWL.
Returns a list of AWL lines.
"""
self.compileState = self.COMPILE_RUNNING
awlLines = []
awlLines.extend(self.__compileFields("VAR_INPUT", self.inFields))
awlLines.extend(self.__compileFields("VAR_OUTPUT", self.outFields))
awlLines.extend(self.__compileFields("VAR_IN_OUT", self.inOutFields))
awlLines.extend(self.__compileFields("VAR", self.statFields))
awlLines.extend(self.__compileFields("VAR_TEMP", self.tempFields))
self.compileState = self.COMPILE_DONE
return awlLines
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