int CEvaluator::getArgumentValue(const string& name){
if(m_vContext.size()>0)
{
if(m_vContext.back()->find(name)==m_vContext.back()->end()){
throw(EvaluationError("argument \""+name+"\" does not have an associated value."));
}
return (*m_vContext.back())[name];
}
throw(EvaluationError("getArgumentValue(): no argument defined."));
}
/// Add a new sample / observation pair
/// - does not update the model!
/// - we don't add NaN and inf observations
void add_new_sample(const Eigen::VectorXd& s, const Eigen::VectorXd& v)
{
if (tools::is_nan_or_inf(v))
throw EvaluationError();
_samples.push_back(s);
_observations.push_back(v);
}
void CEvaluator::visit ( CApply* e )
{
CFunction *f= getFunction(e->getFunction());
if(!f) {
throw(EvaluationError("function \""+e->getFunction()+"\" is not defined."));
}
if(!f || (f->getNumArguments() != e->getNumArguments())) {
throw(EvaluationError("number of arguments for function \""+e->getFunction()+"\" does not match declaration."));
}
map<string,int> *newContext= new map<string,int>();
for(int i=0; i<f->getNumArguments();i++) {
string tmp=f->getArgument(i)->getName();
e->getArgument(i)->accept(this);
int value=result;
// cout << " "<< tmp <<"="<<value<<endl;
(*newContext)[tmp]=value;
}
pushContext(newContext);
CExpr *e2 = f->getExpression();
e2->accept(this);
delete popContext();
//return result;
}
void CEvaluator::visit ( CFunction* e )
{
throw EvaluationError("tried to visit function"+e->getName());
}