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/**************************************************************************/
/* Copyright 2012 Tim Day */
/* */
/* This file is part of Evolvotron */
/* */
/* Evolvotron 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 3 of the License, or */
/* (at your option) any later version. */
/* */
/* Evolvotron 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 Evolvotron. If not, see <http://www.gnu.org/licenses/>. */
/**************************************************************************/
/*! \file
\brief Interfaces for class FunctionRegistry.
*/
#ifndef _function_registry_h_
#define _function_registry_h_
#include "common.h"
#include "function_registration.h"
//! Class acting as a dictionary from function name to registration info.
/*! Intended to be used as singleton; get() obtains instance.
This holds the "definitive" collection of registrations. FunctionRegistrations can be compared using pointer identiy.
*/
class FunctionRegistry
{
public:
//! Constuctor public to Singleton boilerplate can new it.
/*! \todo Figure out how to make this protected/private.
*/
FunctionRegistry();
~FunctionRegistry();
//! Return the registration for the function named (returns 0 if unknown)
const FunctionRegistration* lookup(const std::string& f) const;
//! typedefed for convenience
typedef boost::ptr_map<std::string,FunctionRegistration> Registrations;
//! Just get the collection of registrations.
const Registrations& registrations() const
{
return _registry_by_name;
}
//! Dump list of registered functions
std::ostream& status(std::ostream& out) const;
//! Register a function. Handles duplicates gracefully.
void register_function(const FunctionRegistration& r);
protected:
//! Dictionary from names to Registration objects
Registrations _registry_by_name;
};
#endif
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