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# -*- coding: utf-8 -*-
#
# AWL simulator - blocks
# Copyright 2012-2013 Michael Buesch <m@bues.ch>
#
# Licensed under the terms of the GNU General Public License version 2.
#
from awllabels import *
from awlstruct import *
from util import *
class BlockInterface(object):
class Field(object):
def __init__(self, name, type, initialValue=None):
self.name = name
self.type = type
self.initialValue = initialValue
def __init__(self):
self.fields_IN = []
self.fields_OUT = []
self.fields_INOUT = []
self.fields_STAT = []
self.fields_TEMP = []
def addField_IN(self, field):
self.fields_IN.append(field)
def addField_OUT(self, field):
self.fields_OUT.append(field)
def addField_INOUT(self, field):
self.fields_INOUT.append(field)
def addField_STAT(self, field):
self.fields_STAT.append(field)
def addField_TEMP(self, field):
self.fields_TEMP.append(field)
def __buildDataStructure(self):
self.struct = AwlStruct()
pass#TODO
def allocate(self):
self.__buildDataStructure()
# Allocate the data structure
self.structInstance = AwlStructInstance(self.struct)
class Block(object):
def __init__(self, insns, index, interface):
self.insns = insns
self.labels = None
self.index = index
if insns:
self.labels = AwlLabel.resolveLabels(insns)
self.interface = interface
def __repr__(self):
return "Block %d" % self.index
class OBInterface(BlockInterface):
def addField_IN(self, field):
raise AwlSimError("VAR_INPUT not possible in an OB")
def addField_OUT(self, field):
raise AwlSimError("VAR_OUTPUT not possible in an OB")
def addField_INOUT(self, field):
raise AwlSimError("VAR_IN_OUT not possible in an OB")
def addField_STAT(self, field):
raise AwlSimError("Static VAR not possible in an OB")
class OB(Block):
def __init__(self, insns, index):
Block.__init__(self, insns, index, OBInterface())
def __repr__(self):
return "OB %d" % self.index
class FBInterface(BlockInterface):
pass
class FB(Block):
def __init__(self, insns, index):
Block.__init__(self, insns, index, FBInterface())
def __repr__(self):
return "FB %d" % self.index
class SFBInterface(FBInterface):
pass
class SFB(Block):
def __init__(self, index):
Block.__init__(self, None, index, SFBInterface())
def run(self, cpu, dbOper):
pass # Reimplement this method
def __repr__(self):
return "SFB %d" % self.index
class FCInterface(BlockInterface):
def addField_STAT(self, field):
raise AwlSimError("Static VAR not possible in an FC")
class FC(Block):
def __init__(self, insns, index):
Block.__init__(self, insns, index, FCInterface())
def __repr__(self):
return "FC %d" % self.index
class SFCInterface(FCInterface):
pass
class SFC(Block):
def __init__(self, index):
Block.__init__(self, None, index, SFCInterface())
def run(self, cpu):
pass # Reimplement this method
def __repr__(self):
return "SFC %d" % self.index
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