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# -*- coding: utf-8 -*-
#
# AWL simulator - FUP compiler - Block declaration
#
# 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.namevalidation import *
from awlsim.common.xmlfactory import *
from awlsim.common.project import *
from awlsim.common.version import *
from awlsim.fupcompiler.fupcompiler_base import *
class FupCompiler_BlockDeclFactory(XmlFactory):
def parser_open(self, tag=None):
self.inInstanceDBs = False
self.inDB = False
if tag:
self.decl.setBlockType(tag.getAttr("type", "FC"))
self.decl.setBlockName(tag.getAttr("name", "FC 1"))
XmlFactory.parser_open(self, tag)
def parser_beginTag(self, tag):
if self.inInstanceDBs:
if tag.name == "db":
self.decl.addInstanceDB(tag.getAttr("name", ""))
self.inDB = True
return
else:
if tag.name == "instance_dbs":
self.inInstanceDBs = True
return
XmlFactory.parser_beginTag(self, tag)
def parser_endTag(self, tag):
if self.inInstanceDBs:
if self.inDB:
if tag.name == "db":
self.inDB = False
return
else:
if tag.name == "instance_dbs":
self.inInstanceDBs = False
return
else:
if tag.name == "blockdecl":
self.parser_finish()
return
XmlFactory.parser_endTag(self, tag)
class FupCompiler_BlockDecl(FupCompiler_BaseObj):
factory = FupCompiler_BlockDeclFactory
def __init__(self, compiler):
FupCompiler_BaseObj.__init__(self)
self.compiler = compiler # FupCompiler
self.setBlockType("FC")
self.setBlockName("FC 1")
self.instanceDBs = []
def setBlockType(self, blockType):
self.blockType = blockType.upper().strip()
if self.blockType not in {"FC", "FB", "OB"}:
raise AwlSimError("FupCompiler_BlockDecl: Invalid block "
"type: %s" % self.blockType)
def setBlockName(self, blockName):
blockName = blockName.strip()
if not blockName:
return
self.blockName = blockName
def addInstanceDB(self, dbName):
dbName = dbName.strip()
if not dbName:
return
if len(dbName) > 3 and\
dbName.upper().startswith("DI") and\
dbName[2].isspace():
dbName = "DB" + dbName[2:]
self.instanceDBs.append(dbName)
def compile(self, interf):
"""Compile this FUP block declaration to AWL.
interf => FupCompiler_Interf
Returns a tuple: (list of AWL header lines,
list of AWL footer lines,
list of AWL lines for instance DBs).
"""
self.compileState = self.COMPILE_RUNNING
blockHeader = []
blockFooter = []
instDBs = []
mnemonics = self.compiler.mnemonics
srcName = AwlName.stripChars(self.compiler.fupSource.name,
replaceWith="_",
stripAlpha=False,
stripNum=False, stripSpace=False)
strAwl = "AWL" if mnemonics == S7CPUSpecs.MNEMONICS_DE else "STL"
strFup = "FUP" if mnemonics == S7CPUSpecs.MNEMONICS_DE else "FBD"
strMnemonics = "DE (German)" if mnemonics == S7CPUSpecs.MNEMONICS_DE\
else "EN (international)"
def mkIntro(lines, blockTypeDecl):
lines.append("// ")
lines.append("// %s generated by Awlsim %s compiler" % (
blockTypeDecl, strFup))
lines.append("// ")
lines.append("// Source : %s" % srcName)
lines.append("// Compiler version : %s" % VERSION_STRING)
lines.append("// %s mnemonics : %s" % (strAwl, strMnemonics))
lines.append("// ")
def mkHdrInfo(lines):
lines.append("\tTITLE = %s" % srcName)
lines.append("\tFAMILY : %s" % strFup)
lines.append("\tVERSION : %s" % VERSION_STRING)
if self.blockType == "FC":
if not interf.retValField:
raise AwlSimError("FupCompiler_BlockDecl: RET_VAL "
"is not defined for %s." %\
self.blockName)
retVal = interf.retValField.typeStr
if not AwlName.mayBeValidType(retVal):
raise AwlSimError("FupCompiler_BlockDecl: RET_VAL "
"data type contains invalid characters.")
mkIntro(blockHeader, "FUNCTION")
blockHeader.append("FUNCTION %s : %s" %(
self.blockName, retVal))
mkHdrInfo(blockHeader)
blockFooter.append("END_FUNCTION")
elif self.blockType == "FB":
mkIntro(blockHeader, "FUNCTION_BLOCK")
blockHeader.append("FUNCTION_BLOCK %s" %\
self.blockName)
mkHdrInfo(blockHeader)
blockFooter.append("END_FUNCTION_BLOCK")
elif self.blockType == "OB":
mkIntro(blockHeader, "ORGANIZATION_BLOCK")
blockHeader.append("ORGANIZATION_BLOCK %s" %\
self.blockName)
mkHdrInfo(blockHeader)
blockFooter.append("END_ORGANIZATION_BLOCK")
else:
raise AwlSimError("FupCompiler_BlockDecl: Unknown block "
"type: %s" % self.blockType)
for dbName in self.instanceDBs:
instDBs.append("")
instDBs.append("")
mkIntro(instDBs, "Instance DATA_BLOCK")
instDBs.append("DATA_BLOCK %s" % dbName)
mkHdrInfo(instDBs)
instDBs.append("\t%s" % self.blockName)
instDBs.append("BEGIN")
for field in interf.allFields:
fieldName = field.name
initValueStr = field.initValueStr.strip()
comment = field.comment
if not initValueStr:
continue
if not AwlName.isValidVarName(fieldName):
raise AwlSimError("FupCompiler_BlockDecl: Variable name "
"'%s' contains invalid characters." %\
fieldName)
if not AwlName.mayBeValidValue(initValueStr):
raise AwlSimError("FupCompiler_BlockDecl: Variable value "
"'%s' contains invalid characters." %\
initValueStr)
if not AwlName.isValidComment(comment):
raise AwlSimError("FupCompiler_BlockDecl: Comment "
"'%s' contains invalid characters." %\
comment)
instDBs.append("\t%s := %s;%s" %(
fieldName, initValueStr,
(" // " + comment) if comment else ""))
instDBs.append("END_DATA_BLOCK")
self.compileState = self.COMPILE_DONE
return blockHeader, blockFooter, instDBs
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