mirror of
https://github.com/aportelli/LatAnalyze.git
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146 lines
4.2 KiB
C++
146 lines
4.2 KiB
C++
/*
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* CompiledModel.cpp, part of LatAnalyze 3
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*
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* Copyright (C) 2013 - 2016 Antonin Portelli
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*
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* LatAnalyze 3 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LatAnalyze 3 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <LatAnalyze/CompiledModel.hpp>
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#include <LatAnalyze/Math.hpp>
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#include <LatAnalyze/includes.hpp>
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using namespace std;
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using namespace Latan;
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/******************************************************************************
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* CompiledDoubleModel implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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CompiledDoubleModel::CompiledDoubleModel(const Index nArg, const Index nPar)
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: nArg_(nArg)
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, nPar_(nPar)
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{}
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CompiledDoubleModel::CompiledDoubleModel(const string &code, const Index nArg,
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const Index nPar)
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: CompiledDoubleModel(nArg, nPar)
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{
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setCode(code);
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}
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// access //////////////////////////////////////////////////////////////////////
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string CompiledDoubleModel::getCode(void)
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{
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return code_;
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}
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void CompiledDoubleModel::setCode(const std::string &code)
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{
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code_ = code;
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interpreter_.reset(new MathInterpreter(code_));
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context_.reset(new RunContext);
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varAddress_.reset(new std::vector<unsigned int>);
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parAddress_.reset(new std::vector<unsigned int>);
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isCompiled_.reset(new bool(false));
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}
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// compile /////////////////////////////////////////////////////////////////////
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void CompiledDoubleModel::compile(void) const
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{
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if (!*isCompiled_)
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{
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varAddress_->clear();
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parAddress_->clear();
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for (Index i = 0; i < nArg_; ++i)
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{
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varAddress_->push_back(context_->addVariable("x_" + strFrom(i)));
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}
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for (Index j = 0; j < nPar_; ++j)
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{
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parAddress_->push_back(context_->addVariable("p_" + strFrom(j)));
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}
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interpreter_->compile(*(context_));
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*isCompiled_ = true;
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}
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}
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// function call ///////////////////////////////////////////////////////////////
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double CompiledDoubleModel::operator()(const double *arg,
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const double *par) const
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{
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double result;
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compile();
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for (unsigned int i = 0; i < nArg_; ++i)
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{
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context_->setVariable((*varAddress_)[i], arg[i]);
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}
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for (unsigned int j = 0; j < nPar_; ++j)
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{
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context_->setVariable((*parAddress_)[j], par[j]);
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}
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(*interpreter_)(*context_);
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if (!context_->stack().empty())
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{
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result = context_->stack().top();
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context_->stack().pop();
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}
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else
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{
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result = 0.0;
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LATAN_ERROR(Program, "program execution resulted in an empty stack");
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}
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return result;
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}
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// IO //////////////////////////////////////////////////////////////////////////
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ostream & Latan::operator<<(std::ostream &out, CompiledDoubleModel &m)
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{
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m.compile();
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out << *(m.interpreter_);
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return out;
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}
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// DoubleModel factory /////////////////////////////////////////////////////////
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DoubleModel CompiledDoubleModel::makeModel(const bool makeHardCopy) const
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{
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DoubleModel res;
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if (makeHardCopy)
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{
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CompiledDoubleModel copy(*this);
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res.setFunction([copy](const double *x, const double *p)
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{return copy(x, p);}, nArg_, nPar_);
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}
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else
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{
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res.setFunction([this](const double *x, const double *p)
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{return (*this)(x, p);}, nArg_, nPar_);
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}
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return res;
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}
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DoubleModel Latan::compile(const std::string &code, const Index nArg,
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const Index nPar)
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{
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CompiledDoubleModel compiledModel(code, nArg, nPar);
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return compiledModel.makeModel();
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}
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