diff options
Diffstat (limited to 'src/uscxml/transform/ChartToVHDL.cpp')
| -rw-r--r-- | src/uscxml/transform/ChartToVHDL.cpp | 287 |
1 files changed, 90 insertions, 197 deletions
diff --git a/src/uscxml/transform/ChartToVHDL.cpp b/src/uscxml/transform/ChartToVHDL.cpp index e9dc60d..bcff51f 100644 --- a/src/uscxml/transform/ChartToVHDL.cpp +++ b/src/uscxml/transform/ChartToVHDL.cpp @@ -17,7 +17,6 @@ * @endcond */ -#include "uscxml/transform/ChartToFSM.h" #include "uscxml/transform/ChartToVHDL.h" #include "uscxml/debug/Complexity.h" #include <DOM/io/Stream.hpp> @@ -47,209 +46,103 @@ Transformer ChartToVHDL::transform(const Interpreter& other) { return boost::shared_ptr<TransformerImpl>(c2c); } -ChartToVHDL::ChartToVHDL(const Interpreter& other) : TransformerImpl() { - cloneFrom(other.getImpl()); +ChartToVHDL::ChartToVHDL(const Interpreter& other) : ChartToC(other), _eventTrie(".") { } ChartToVHDL::~ChartToVHDL() { } -NodeSet<std::string> ChartToVHDL::inPostFixOrder(const std::set<std::string>& elements, const Element<std::string>& root) { - NodeSet<std::string> nodes; - inPostFixOrder(elements, root, nodes); - return nodes; -} - -void ChartToVHDL::inPostFixOrder(const std::set<std::string>& elements, const Element<std::string>& root, NodeSet<std::string>& nodes) { - NodeList<std::string> children = root.getChildNodes(); - for (int i = 0; i < children.getLength(); i++) { - if (children.item(i).getNodeType() != Node_base::ELEMENT_NODE) - continue; - Arabica::DOM::Element<std::string> childElem(children.item(i)); - inPostFixOrder(elements, childElem, nodes); - - } - for (int i = 0; i < children.getLength(); i++) { - if (children.item(i).getNodeType() != Node_base::ELEMENT_NODE) - continue; - Arabica::DOM::Element<std::string> childElem(children.item(i)); +void ChartToVHDL::checkDocument() { + // filter unsupported stuff + Arabica::XPath::NodeSet<std::string> unsupported; + + std::set<std::string> elements; + elements.insert(_nsInfo.xmlNSPrefix + "datamodel"); + elements.insert(_nsInfo.xmlNSPrefix + "data"); + elements.insert(_nsInfo.xmlNSPrefix + "assign"); + elements.insert(_nsInfo.xmlNSPrefix + "donedata"); + elements.insert(_nsInfo.xmlNSPrefix + "content"); + elements.insert(_nsInfo.xmlNSPrefix + "param"); + elements.insert(_nsInfo.xmlNSPrefix + "script"); + + elements.insert(_nsInfo.xmlNSPrefix + "parallel"); + elements.insert(_nsInfo.xmlNSPrefix + "history"); + + elements.insert(_nsInfo.xmlNSPrefix + "if"); // implicit elseif und else + elements.insert(_nsInfo.xmlNSPrefix + "foreach"); + elements.insert(_nsInfo.xmlNSPrefix + "send"); + elements.insert(_nsInfo.xmlNSPrefix + "cancel"); + elements.insert(_nsInfo.xmlNSPrefix + "invoke"); + elements.insert(_nsInfo.xmlNSPrefix + "finalize"); + unsupported = ChartToC::inDocumentOrder(elements, _scxml); + + std::stringstream ss; + if (unsupported.size() > 0) { + for (int i = 0; i < unsupported.size(); i++) { + ss << " " << DOMUtils::xPathForNode(unsupported[i]) << " unsupported" << std::endl; + } + throw std::runtime_error("Unsupported elements found:\n" + ss.str()); + } + + elements.clear(); + elements.insert(_nsInfo.xmlNSPrefix + "transition"); + unsupported = inDocumentOrder(elements, _scxml); + + for (int i = 0; i < unsupported.size(); i++) { + Element<std::string> transition(unsupported[i]); + if (HAS_ATTR(transition, "cond")) { + ERROR_PLATFORM_THROW("transition with conditions not supported!"); + } + if (!HAS_ATTR(transition, "target")) { + ERROR_PLATFORM_THROW("targetless transition not supported!"); + } + } - if (elements.find(TAGNAME(childElem)) != elements.end()) { - nodes.push_back(childElem); - } - } -} - -void ChartToVHDL::inDocumentOrder(const std::set<std::string>& elements, const Element<std::string>& root, NodeSet<std::string>& nodes) { - if (elements.find(TAGNAME(root)) != elements.end()) { - nodes.push_back(root); - } - - NodeList<std::string> children = root.getChildNodes(); - for (int i = 0; i < children.getLength(); i++) { - if (children.item(i).getNodeType() != Node_base::ELEMENT_NODE) - continue; - Arabica::DOM::Element<std::string> childElem(children.item(i)); - inDocumentOrder(elements, childElem, nodes); - } } -NodeSet<std::string> ChartToVHDL::inDocumentOrder(const std::set<std::string>& elements, const Element<std::string>& root) { - NodeSet<std::string> nodes; - inDocumentOrder(elements, root, nodes); - return nodes; +void ChartToVHDL::findEvents() { + // elements with an event attribute + NodeSet<std::string> withEvent; + withEvent.push_back(InterpreterImpl::filterChildElements(_nsInfo.xmlNSPrefix + "raise", _scxml, true)); + withEvent.push_back(InterpreterImpl::filterChildElements(_nsInfo.xmlNSPrefix + "send", _scxml, true)); + withEvent.push_back(InterpreterImpl::filterChildElements(_nsInfo.xmlNSPrefix + "transition", _scxml, true)); + + for (size_t i = 0; i < withEvent.size(); i++) { + if (HAS_ATTR_CAST(withEvent[i], "event")) { + _eventTrie.addWord(ATTR_CAST(withEvent[i], "event")); + } + } } - - -// ASK Where does _scxml,_nsInfo come from - + void ChartToVHDL::writeTo(std::ostream& stream) { - // ASK What is this ? - _binding = (HAS_ATTR(_scxml, "binding") && iequals(ATTR(_scxml, "binding"), "late") ? LATE : EARLY); - // ASK Name for whole state machine? Important ? - _name = (HAS_ATTR(_scxml, "name") ? ATTR(_scxml, "name") : "no_name_machine"); - - // filter unsupported stuff - std::set<std::string> elements; - elements.insert(_nsInfo.xmlNSPrefix + "datamodel"); - elements.insert(_nsInfo.xmlNSPrefix + "data"); - elements.insert(_nsInfo.xmlNSPrefix + "assign"); - elements.insert(_nsInfo.xmlNSPrefix + "donedata"); - elements.insert(_nsInfo.xmlNSPrefix + "content"); - elements.insert(_nsInfo.xmlNSPrefix + "param"); - elements.insert(_nsInfo.xmlNSPrefix + "script"); - - elements.insert(_nsInfo.xmlNSPrefix + "parallel"); - elements.insert(_nsInfo.xmlNSPrefix + "history"); - - elements.insert(_nsInfo.xmlNSPrefix + "if"); //implizit elseif und else - elements.insert(_nsInfo.xmlNSPrefix + "foreach"); - elements.insert(_nsInfo.xmlNSPrefix + "send"); - elements.insert(_nsInfo.xmlNSPrefix + "cancel"); - elements.insert(_nsInfo.xmlNSPrefix + "invoke"); - elements.insert(_nsInfo.xmlNSPrefix + "finalize"); - Arabica::XPath::NodeSet<std::string> unsupported = inDocumentOrder(elements, _scxml); - - if (unsupported.size() > 0) { - stream << "contains unsupported elements:" << std::endl; - for (int i = 0; i < unsupported.size(); i++) { - Element<std::string> uElement(unsupported[i]); - stream << TAGNAME(uElement) << std::endl; - } - stream << "ERROR" << std::endl; - return; - } - - elements.clear(); - elements.insert(_nsInfo.xmlNSPrefix + "transition"); - unsupported = inPostFixOrder(elements, _scxml); - - for (int i = 0; i < unsupported.size(); i++) { - Element<std::string> transition(unsupported[i]); - if (HAS_ATTR(transition, "cond")) { - stream << transition << std::endl; - stream << "transition has conditions (not supported)!" << std::endl; - stream << "ERROR" << std::endl; - return; - } - if (!HAS_ATTR(transition, "target")) { - stream << transition << std::endl; - stream << "transition has no target (not supported)!" << std::endl; - stream << "ERROR" << std::endl; - return; - } - if (!HAS_ATTR(transition, "event")) { - stream << transition << std::endl; - stream << "transition is spntaneous (not supported)!" << std::endl; - stream << "ERROR" << std::endl; - return; - } - if (transition.getChildNodes().getLength() > 0) { - stream << transition << std::endl; - stream << "transition executable code (not supported)!" << std::endl; - stream << "ERROR" << std::endl; - return; - } - } - - // create states array - elements.clear(); - // elements.insert(_nsInfo.xmlNSPrefix + "scxml"); - elements.insert(_nsInfo.xmlNSPrefix + "state"); - elements.insert(_nsInfo.xmlNSPrefix + "final"); - elements.insert(_nsInfo.xmlNSPrefix + "parallel"); - elements.insert(_nsInfo.xmlNSPrefix + "history"); - elements.insert(_nsInfo.xmlNSPrefix + "initial"); - // elements.insert(_nsInfo.xmlNSPrefix + "parallel"); - _states = inDocumentOrder(elements, _scxml); - - for (int i = 0; i < _states.size(); i++) { - Element<std::string> state(_states[i]); - state.setAttribute("documentOrder", toStr(i)); - if (!HAS_ATTR(state, "id")) { - std::stringstream ss; - ss << "HWS_" << toStr(i); - state.setAttribute("id", ss.str()); - } - _stateNames[ATTR(state, "id")] = state; - } - _initState = ATTR(_scxml, "initial"); + // same preparations as the C transformation +// annotateElementSets(); + + +// checkDocument(); + findEvents(); + _eventTrie.dump(); + + writeTypes(stream); + writeFiFo(stream); + writeTransitionSet(stream); + writeExitSet(stream); + writeEntrySet(stream); + writeFSM(stream); +} - // create transitions array & event array - elements.clear(); - elements.insert(_nsInfo.xmlNSPrefix + "transition"); - _transitions = inPostFixOrder(elements, _scxml); +void ChartToVHDL::writeTransitionSet(std::ostream & stream) { + for (size_t i = 0; i < _transitions.size(); i++) { + Element<std::string> transition(_transitions[i]); + std::string name = DOMUtils::idForNode(transition); + + } +} - for (int i = 0; i < _transitions.size(); i++) { - Element<std::string> transition(_transitions[i]); - transition.setAttribute("postFixOrder", toStr(i)); - if (!HAS_ATTR(transition, "event")) { - // spontanious transition - transition.setAttribute("event", CONST_TRANS_SPONTANIOUS); - } - std::stringstream ss; - ss << "HWT" << toStr(i) << "_to_" << ATTR(transition, "target"); - transition.setAttribute("id", ss.str()); - _transitionNames[ss.str()] = transition; - - std::string event = ATTR(transition, "event"); - if (event == "*") { - event = CONST_EVENT_ANY; - transition.setAttribute("event", CONST_EVENT_ANY); - } - if (!(std::find(_events.begin(), _events.end(), event) != _events.end())) { - // if eventname does not exist - _events.push_back(event); - } - } +void ChartToVHDL::writeExitSet(std::ostream & stream) { +} - // debug - // stream << _scxml; - // return; - - // how many bits do we need to represent the state array? - // std::string seperator; - // _stateCharArraySize = ceil((float) _states.size() / (float) 8); - // _stateCharArrayInit = "{"; - // for (int i = 0; i < _stateCharArraySize; i++) { - // _stateCharArrayInit += seperator + "0"; - // seperator = ", "; - // } - // _stateCharArrayInit += "}"; - // - // seperator = ""; - // _transCharArraySize = ceil((float) _transitions.size() / (float) 8); - // _transCharArrayInit = "{"; - // for (int i = 0; i < _transCharArraySize; i++) { - // _transCharArrayInit += seperator + "0"; - // seperator = ", "; - // } - // _transCharArrayInit += "}"; - - // writeTopDown(stream); - writeTypes(stream); - writeFiFo(stream); - writeFSM(stream); +void ChartToVHDL::writeEntrySet(std::ostream & stream) { } void ChartToVHDL::writeFSM(std::ostream & stream) { @@ -350,11 +243,11 @@ void ChartToVHDL::writeTypes(std::ostream & stream) { // create event type stream << " type event_type is ("; seperator = ""; - for (int i = 0; i < _events.size(); i++) { - stream << seperator; - stream << _events[i]; - seperator = ", "; - } +// for (int i = 0; i < _events.size(); i++) { +// stream << seperator; +// stream << _events[i]; +// seperator = ", "; +// } if (seperator.size() == 0) { stream << "NO_EVENTS"; } @@ -701,7 +594,7 @@ void ChartToVHDL::writeNextStateLogic(std::ostream & stream) { stream << "begin" << std::endl; stream << " if rst = '1' then" << std::endl; stream << " current_state <= (others => '0');" << std::endl; - stream << " " << _initState << "_curr <= '1';" << std::endl; +// stream << " " << _initState << "_curr <= '1';" << std::endl; stream << " elsif (rising_edge(clk) and stall = '0') then" << std::endl; stream << " current_state <= next_state;" << std::endl; stream << " end if;" << std::endl; |