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#ifndef _ERROR_H
#define _ERROR_H
#include <exception>
#include <sstream>
namespace ledger {
class error : public std::exception
{
std::string reason;
public:
error(const std::string& _reason) throw() : reason(_reason) {}
virtual ~error() throw() {}
virtual const char* what() const throw() {
return reason.c_str();
}
};
class compute_error : public error
{
public:
compute_error(const std::string& reason) throw() : error(reason) {}
virtual ~compute_error() throw() {}
};
class expr_error : public error
{
public:
expr_error(const std::string& reason) throw() : error(reason) {}
virtual ~expr_error() throw() {}
};
class format_error : public error
{
public:
format_error(const std::string& reason) throw() : error(reason) {}
virtual ~format_error() throw() {}
};
class parse_error : public error
{
unsigned int line;
std::string file;
public:
parse_error(const std::string& _file, const unsigned int _line,
const std::string& reason) throw()
: error(reason), line(_line), file(_file) {}
virtual ~parse_error() throw() {}
virtual const char* what() const throw() {
static std::ostringstream msg;
msg << file << ", line " << line << ": " << error::what();
return msg.str().c_str();
}
};
} // namespace ledger
#endif // _CONSTRAINT_H
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