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/**
* @file
* @author 2015-2016 Jens Heuschkel (heuschkel@tk.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* 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.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#ifndef CHARTOVHDL_H
#define CHARTOVHDL_H
#include "uscxml/interpreter/InterpreterDraft6.h"
#include "uscxml/dom/DOMUtils.h"
#include "uscxml/util/Trie.h"
#include "Transformer.h"
#include "ChartToC.h"
#include <DOM/Document.hpp>
#include <DOM/Node.hpp>
#include <XPath/XPath.hpp>
#include <ostream>
#include <vector>
namespace uscxml {
class USCXML_API ChartToVHDL : public ChartToC {
public:
virtual ~ChartToVHDL();
static Transformer transform(const Interpreter& other);
void writeTo(std::ostream& stream);
struct VNode {
virtual void print(std::ostream& stream, const std::string padding = "") = 0;
virtual ~VNode() {};
};
struct VBranch : VNode {
std::vector< VNode* > v;
virtual ~VBranch() {
for(unsigned i = 0; i < v.size(); i++)
delete v[i];
}
VBranch& operator +=(VNode* p ) {
v.push_back(p);
return *this;
}
};
struct VPointer {
VNode* ptr;
operator VNode*() {
return ptr;
}
VPointer& operator /( VNode* p ) {
ptr = p;
return *this;
}
};
struct VContainer {
VBranch* ptr;
operator VBranch*() {
return ptr;
}
VContainer& operator /( VBranch* p ) {
ptr = p;
return *this;
}
VContainer& operator , ( VPointer p ) {
if(ptr) ptr->v.push_back(p.ptr);
return *this;
}
VContainer& operator , ( VContainer c ) {
if(ptr) ptr->v.push_back(c.ptr);
return *this;
}
};
struct VLine : VNode {
VLine(const std::string& name) : name(name) {}
virtual void print(std::ostream& stream, const std::string padding = "") {
stream << " " << name;
}
std::string name;
};
struct VAssign : VBranch {
virtual void print(std::ostream& stream, const std::string padding = "") {
v[0]->print(stream, padding);
stream << padding << " <=";
v[1]->print(stream, padding + " ");
}
};
struct VAnd : VBranch {
virtual void print(std::ostream& stream, const std::string padding = "") {
stream << std::endl << padding << "( '1' ";
for(unsigned i = 0; i < v.size(); i++) {
stream << std::endl << padding << " and";
v[i]->print(stream, padding + " ");
}
stream << padding << ")" << std::endl;
}
};
struct VOr : VBranch {
virtual void print(std::ostream& stream, const std::string padding = "") {
stream << std::endl << padding << "( '0' ";
for(unsigned i = 0; i < v.size(); i++) {
stream << std::endl << padding << " or";
v[i]->print(stream, padding + " ");
}
stream << std::endl << padding << ")" << std::endl;
}
};
struct VNot : VBranch {
virtual void print(std::ostream& stream, const std::string padding = "") {
stream << " ( not";
v[0]->print(stream, padding + " ");
stream << " )";
}
};
struct VNop : VBranch {
virtual void print(std::ostream& stream, const std::string padding = "") {
v[0]->print(stream, padding);
}
};
#define VLINE VPointer()/new VLine
#define VASSIGN VContainer()/new VAssign
#define VOR VContainer()/new VOr
#define VAND VContainer()/new VAnd
#define VNOT VContainer()/new VNot
#define VNOP VContainer()/new VNop
protected:
ChartToVHDL(const Interpreter& other);
void checkDocument();
void findEvents();
void writeIncludes(std::ostream& stream);
void writeTopDown(std::ostream& stream);
void writeTypes(std::ostream& stream);
void writeOptimalTransitionSetSelection(std::ostream& stream);
void writeExitSet(std::ostream & stream);
void writeEntrySet(std::ostream & stream);
void writeNextStateLogic(std::ostream& stream);
void writeOutputLogic(std::ostream& stream);
void writeSignals(std::ostream& stream);
void writeFiFo(std::ostream& stream);
void writeModuleInstantiation(std::ostream& stream);
void writeErrorHandler(std::ostream& stream);
void writeFSM(std::ostream& stream);
void writeTransitionSet(std::ostream & stream);
void writeActiveStateNplusOne(std::ostream & stream);
void writeDefaultCompletions(std::ostream & stream);
void writeCompleteEntrySet(std::ostream & stream);
void writeSpontaneousHandler(std::ostream & stream);
void writeEventHandler(std::ostream & stream);
void writeTestbench(std::ostream & stream);
Trie _eventTrie;
private:
std::string eventNameEscape(const std::string& eventName);
};
}
#endif /* end of include guard: FSMTOCPP_H_201672B0 */
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