# -*- coding: utf-8 -*- # # AWL simulator - FUP compiler - Interface # # Copyright 2016 Michael Buesch # # 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.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="", enableNameCheck=True): self.name = name self.typeStr = typeStr self.initValueStr = initValueStr self.comment = comment self.enableNameCheck = enableNameCheck class FupCompiler_Interf(FupCompiler_BaseObj): factory = FupCompiler_InterfFactory noPreprocessing = True 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 getFieldByName(self, fieldName): """Get an interface field by name. Returns an FupCompiler_InterfField instance or None, if there is no such field. """ for field in self.allFields: if field.name == fieldName: return field return None def allocTEMP(self, dataTypeName="BOOL", name=None, elem=None): """Allocate an additional TEMP field. 'dataTypeName' is the data type to create. 'name' is the optional name of the new field. 'elem' is the optional element that allocates the field. Returns the name string of the allocated field. """ comment = "Allocated by FUP compiler" if elem: comment += " for %s" % str(elem) field = FupCompiler_InterfField( name=name or ("_FUP_COMP_temp_%d" % len(self.tempFields)), typeStr=dataTypeName, initValueStr="", comment=comment, enableNameCheck=False) self.tempFields.append(field) return field.name 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) and\ field.enableNameCheck: raise FupInterfError("Variable name " "'%s' contains invalid characters." % ( varName), self) if not AwlName.mayBeValidType(typeStr): raise FupInterfError("Variable type " "'%s' contains invalid characters." % ( typeStr), self) if not AwlName.isValidComment(comment): raise FupInterfError("Comment " "'%s' contains invalid characters." % ( comment), self) 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 def __generateAssigns(self, fields): awlLines = [] for field in fields: typeStr = field.typeStr.strip() comment = [] if typeStr: comment.append(typeStr) fieldComment = field.comment.strip() if fieldComment: comment.append(fieldComment) fieldName = field.name.strip() if len(fieldName) >= 16: indent = " " elif len(fieldName) >= 8: indent = "\t" else: indent = "\t\t" awlLines.append("\t\t%s%s:= ... ,%s" % ( fieldName, indent, (" // %s" % "; ".join(comment)) if comment else "")) return awlLines def generateCallTemplate(self): """Generate template AWL code for a CALL operation to this block. Returns a list of AWL lines. """ awlLines = [] if self.inFields: awlLines.append("\t\t// VAR_INPUT") awlLines.extend(self.__generateAssigns(self.inFields)) if self.outFields: awlLines.append("\t\t// VAR_OUTPUT") awlLines.extend(self.__generateAssigns(self.outFields)) if self.inOutFields: awlLines.append("\t\t// VAR_IN_OUT") awlLines.extend(self.__generateAssigns(self.inOutFields)) return awlLines def __repr__(self): return "FupCompiler_Interf(compiler)" def __str__(self): return "FUP-block-interface"