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libmultiscale/src/parser/lm_parameter.hh
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lm_parameter.hh
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/**
* @file lm_parameter.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date Mon Nov 25 17:17:19 2013
*
* @brief Encapsulate a parameter for the parsing system
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* LibMultiScale is free software: you can redistribute it and/or modify it
* under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* LibMultiScale 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with LibMultiScale. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __LIBMULTISCALE_LM_PARAMETERS_HH__
#define __LIBMULTISCALE_LM_PARAMETERS_HH__
/* -------------------------------------------------------------------------- */
#include "lm_defaults.hh"
#include "lm_parser.hh"
#include <memory>
#include <typeinfo>
/* -------------------------------------------------------------------------- */
__BEGIN_LIBMULTISCALE__
/* -------------------------------------------------------------------------- */
template <typename T> class ParameterTyped;
/* -------------------------------------------------------------------------- */
class Parameter {
public:
Parameter(const std::string &name) : name(name), is_set(false){};
virtual ~Parameter(){};
virtual std::shared_ptr<pybind11::object>
getParameterAsPyObject(const std::string &variable) = 0;
virtual void
setParameterFromPyObject(const std::string &variable,
std::shared_ptr<pybind11::object> val) = 0;
template <typename T>
std::enable_if_t<not std::is_same<T, pybind11::object>::value,
ParameterTyped<T> &>
getParameterTyped() {
try {
ParameterTyped<T> &tmp = dynamic_cast<ParameterTyped<T> &>(*this);
return tmp;
} catch (...) {
LM_FATAL("The parameter named "
<< name << " is of type " << typeid(*this).name()
<< " and not of type " << typeid(T).name());
}
}
virtual ParseResult setParam(const std::string &variable,
std::stringstream &line) = 0;
template <typename T>
std::enable_if_t<not std::is_same<T, pybind11::object>::value>
setParam(const std::string &variable, const T &value);
template <typename T>
std::enable_if_t<std::is_same<T, pybind11::object>::value>
setParam(const std::string &variable, const T &value);
template <typename T>
std::enable_if_t<not std::is_same<T, pybind11::object>::value, T>
getParam(const std::string &variable);
template <typename T>
std::enable_if_t<std::is_same<T, pybind11::object>::value, T>
getParam(const std::string &variable);
template <typename T>
void changeDefault(const std::string &variable, const T &value);
bool isSet() { return is_set; };
void makeItAsSet() { is_set = true; };
protected:
std::string name;
bool is_set;
};
/* -------------------------------------------------------------------------- */
template <typename T>
std::enable_if_t<not std::is_same<T, pybind11::object>::value>
Parameter::setParam(const std::string &variable, const T &value) {
this->getParameterTyped<T>().setParam(variable, value);
}
/* -------------------------------------------------------------------------- */
template <typename T>
std::enable_if_t<std::is_same<T, pybind11::object>::value>
Parameter::setParam(const std::string &variable, const T &value) {
return this->setParameterFromPyObject(
variable, std::make_shared<pybind11::object>(value));
}
/* -------------------------------------------------------------------------- */
template <typename T>
std::enable_if_t<not std::is_same<T, pybind11::object>::value, T>
Parameter::getParam(const std::string &variable) {
T value;
this->getParameterTyped<T>().getParam(variable, value);
return value;
}
/* -------------------------------------------------------------------------- */
template <typename T>
std::enable_if_t<std::is_same<T, pybind11::object>::value, T>
Parameter::getParam(const std::string &variable) {
return *this->getParameterAsPyObject(variable);
}
/* -------------------------------------------------------------------------- */
template <typename T>
void Parameter::changeDefault(const std::string &variable, const T &value) {
this->getParameterTyped<T>().changeDefault(variable, value);
}
/* -------------------------------------------------------------------------- */
// template <typename T>
// std::shared_ptr<pybind11::object> my_cast(T &values);
using pyptr = std::shared_ptr<pybind11::object>;
template <typename T> struct MyCast { static pyptr cast(T &values); };
template <typename T> pyptr my_cast(T &values) {
return MyCast<T>::cast(values);
}
/* -------------------------------------------------------------------------- */
template <typename T> class ParameterTyped : public Parameter {
public:
ParameterTyped(const std::string n, T &v, const default_val<T> def,
UInt n_entries = 1)
: Parameter(n), values(v), n_entries(n_entries) {
this->is_set = def.setDefault(this->values);
DUMPFILE(Parser::fout, "declare " << n << " 1 x " << typeid(T).name());
};
virtual ~ParameterTyped(){};
virtual void setParam(const std::string &, const T &value) {
assign_value(this->values, value);
this->is_set = true;
}
virtual void getParam(const std::string &, T &value) {
assign_value(value, this->values);
}
std::shared_ptr<pybind11::object>
getParameterAsPyObject(const std::string &) override {
return my_cast(this->values);
};
void
setParameterFromPyObject(const std::string &,
std::shared_ptr<pybind11::object> val) override {
assign_value(this->values, val);
this->is_set = true;
};
virtual void changeDefault(const std::string &, const T &value) {
assign_value(this->values, value);
this->is_set = true;
}
ParseResult setParam(const std::string &variable [[gnu::unused]],
std::stringstream &line) {
LM_ASSERT(variable == name, "internal keyword problem");
UInt word_count = 0;
word_count += Parser::parse(values, line, n_entries);
this->is_set = true;
return ParseResult(true, word_count);
};
virtual Parameter *createCopy() { LM_TOIMPLEMENT; };
protected:
T &values;
UInt n_entries;
};
/* -------------------------------------------------------------------------- */
__END_LIBMULTISCALE__
#endif /* __LIBMULTISCALE_LM_PARAMETERS_HH__ */
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