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# -*- coding: utf-8 -*-
#
# AWL simulator - FUP compiler - Grid
#
# 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.xmlfactory import *
from awlsim.awloptimizer.awloptimizer import *
from awlsim.fupcompiler.base import *
from awlsim.fupcompiler.conn import *
from awlsim.fupcompiler.wire import *
from awlsim.fupcompiler.elem import *
from awlsim.fupcompiler.elemcomment import *
class FupCompiler_GridFactory(XmlFactory):
def parser_open(self, tag=None):
assert(tag)
uuid = tag.getAttr("uuid", None)
self.grid.uuid = uuid
XmlFactory.parser_open(self, tag)
def parser_beginTag(self, tag):
if tag.name == "optimizers":
optSettCont = self.grid.optimizerSettingsContainer
optSettCont.clear()
self.parser_switchTo(optSettCont.factory(settingsContainer=optSettCont))
return
if tag.name == "wires":
self.parser_switchTo(FupCompiler_Wire.factory(grid=self.grid))
return
if tag.name == "elements":
self.parser_switchTo(FupCompiler_Elem.factory(grid=self.grid))
return
XmlFactory.parser_beginTag(self, tag)
def parser_endTag(self, tag):
if tag.name == "grid":
self.parser_finish()
return
XmlFactory.parser_endTag(self, tag)
class FupCompiler_Grid(FupCompiler_BaseObj):
factory = FupCompiler_GridFactory
noPreprocessing = True
def __init__(self, compiler, uuid=None):
FupCompiler_BaseObj.__init__(self, uuid=uuid)
self.compiler = compiler # FupCompiler
self.wires = {} # FupCompiler_Wire
self.elems = set() # FupCompiler_Elem
self.optimizerSettingsContainer = AwlOptimizerSettingsContainer()
def newWire(self, virtual=False):
newWireId = 0
if self.wires:
newWireId = max(dictKeys(self.wires)) + 1
wire = FupCompiler_Wire(self, newWireId, virtual)
self.addWire(wire)
return wire
def addWire(self, wire):
if wire.idNum in self.wires:
return False
self.wires[wire.idNum] = wire
return True
def getWire(self, wireId):
try:
if wireId >= 0:
return self.wires[wireId]
except KeyError:
pass
return None
def addElem(self, elem):
self.elems.add(elem)
def compile(self):
"""Compile this FUP grid to AWL.
Returns a list of instructions.
"""
if self.compileState == self.COMPILE_DONE:
return []
self.compileState = self.COMPILE_RUNNING
insns = []
from awlsim.fupcompiler.elemoper import FupCompiler_ElemOper
# Resolve all wire-IDs
for wire in dictValues(self.wires):
wire.clearConnections()
for elem in self.elems:
for conn in elem.connections:
if conn.wireId == conn.WIREID_NONE and not conn.isOptional:
raise FupGridError("Unconnected pin%s found "
"in FUP element %s." % (
(" \"%s\"" % conn.text) if conn.text else "",
str(elem)),
self)
if conn.wireId == conn.WIREID_NONE:
conn.wire = None
else:
wire = self.getWire(conn.wireId)
if not wire:
raise FupGridError("Wire with ID %d "
"does not exist, but %s "
"references it." % (
conn.wireId, str(elem)),
self)
wire.addConn(conn)
conn.wire = wire
for wire in dictValues(self.wires):
if len(wire.connections) == 0:
raise FupGridError("Found unconnected wire %s" % (
str(wire)),
self)
if len(wire.connections) == 1:
raise FupGridError("Found dangling wire "
"%s with only one connection" % (
str(wire)),
self)
def checkAllElemStates(checkState):
# Check if all elements have been processed.
for elem in self.elems:
if elem.compileState != checkState and\
not isinstance(elem, FupCompiler_ElemComment):
raise FupGridError("Found dangling element "
"'%s'. Please make sure all connections of "
"this element are connected." % (
str(elem)),
self)
# Preprocess all elements.
# Find all assignment operators and walk the logic chain upwards.
for elem in FupCompiler_Elem.sorted(self.elems):
if elem.isCompileEntryPoint and elem.needPreprocess:
elem.preprocess()
# Check if all elements have been preprocessed.
checkAllElemStates(FupCompiler_Elem.COMPILE_PREPROCESSED)
# Check if inverted connections are only used on supported elements.
for elem in FupCompiler_Elem.sorted(self.elems):
for conn in elem.connections:
if conn.inverted and\
conn.connType != conn.TYPE_VKE:
raise FupGridError("An inverted connection "
"is only allowed for VKE based (boolean) "
"connections. The connection '%s' in "
"element '%s' is not supported." % (
str(conn), str(elem)),
self)
# Compile all elements.
# Find all assignment operators and walk the logic chain upwards.
for elem in FupCompiler_Elem.sorted(self.elems):
if elem.isCompileEntryPoint and elem.needCompile:
insns.extend(elem.compile())
# Check if all elements have been compiled.
checkAllElemStates(FupCompiler_Elem.COMPILE_DONE)
self.compileState = self.COMPILE_DONE
return insns
def __repr__(self):
return "FupCompiler_Grid(compiler)"
def __str__(self):
return "FUP-grid"
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