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/// \file exceptions.hpp
/// Exception types raised by lutok.

#if !defined(LUTOK_EXCEPTIONS_HPP)
#define LUTOK_EXCEPTIONS_HPP

#include <stdexcept>
#include <string>

namespace lutok {


class state;


/// Base exception for lua errors.
class error : public std::runtime_error {
public:
    explicit error(const std::string&);
    virtual ~error(void) throw();
};


/// Exception for errors raised by the Lua API library.
class api_error : public error {
    /// Name of the Lua C API function that caused the error.
    std::string _api_function;

public:
    explicit api_error(const std::string&, const std::string&);
    virtual ~api_error(void) throw();

    static api_error from_stack(state&, const std::string&);

    const std::string& api_function(void) const;
};


/// File not found error.
class file_not_found_error : public error {
    /// Name of the not-found file.
    std::string _filename;

public:
    explicit file_not_found_error(const std::string&);
    virtual ~file_not_found_error(void) throw();

    const std::string& filename(void) const;
};


}  // namespace lutok


#endif  // !defined(LUTOK_EXCEPTIONS_HPP)