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/*
* This file is part of the source code of the software program
* Vampire. It is protected by applicable
* copyright laws.
*
* This source code is distributed under the licence found here
* https://vprover.github.io/license.html
* and in the source directory
*/
/**
* @file ProofExtra.hpp
*
* Include "extra information" about an inference, e.g. selected literals, unifier, etc.
*
* @since 09/09/2024 Oxford
*/
#ifndef __Lib_ProofExtra__
#define __Lib_ProofExtra__
#include "Lib/DHMap.hpp"
namespace Lib {
// base for extra inference information
struct InferenceExtra {
virtual ~InferenceExtra() {};
// for debug printing only, specific output formats should downcast and handle individually
virtual void output(std::ostream &out) const = 0;
std::string toString() const {
std::stringstream ss;
this->output(ss);
return ss.str();
}
};
inline std::ostream &operator<<(std::ostream &out, const InferenceExtra &extra) {
extra.output(out);
return out;
}
// container for extras
class ProofExtra {
DHMap<Kernel::Unit *, std::unique_ptr<InferenceExtra>> extras;
public:
// associate `extra` with `unit`, taking ownership of `extra`
void insert(Kernel::Unit *unit, InferenceExtra *extra) {
ALWAYS(extras.insert(unit, std::unique_ptr<InferenceExtra>(extra)));
}
// remove the extra information for this unit
void remove(Kernel::Unit *unit) {
extras.remove(unit);
}
// associated InferenceExtra if present, nullptr otherwise
const InferenceExtra *find(const Kernel::Unit *unit) {
auto *found = extras.findPtr(const_cast<Kernel::Unit *>(unit));
if(!found)
return nullptr;
return found->get();
}
// associated InferenceExtra: must be present
template<typename T>
T &get(Kernel::Unit *unit) {
auto &found = extras.get(unit);
ASS(found)
return static_cast<T &>(*found);
}
};
}
#endif