base_exception.hpp

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// ===-- include/psystem/exception/base_exception.hpp ----- -*- C++ -*- --=== //
// Copyright (c) 2014 Matt Bisson.  All rights reserved.

#pragma once
#ifndef PSYSTEM_EXCEPTION_BASE_EXCEPTION_HPP
#define PSYSTEM_EXCEPTION_BASE_EXCEPTION_HPP

#include "exception_ns.hpp"

#include <exception>
#include <iosfwd>
#include <psystem/framework/not_assignable.hpp>

namespace psystem {
namespace exception {

class base_exception
    : public std::exception,
      public psystem::not_assignable 
{
protected:
    base_exception(
        std::string file, std::string function, uint32_t line) noexcept;

    template <typename... MessageArgs>
    base_exception(
        std::string file,
        std::string function,
        uint32_t line,
        MessageArgs&&... message) noexcept
        : m_what(format_message(std::forward<MessageArgs>(message)...)),
          m_function(std::move(function)),
          m_line_number(line),
          m_source_file(std::move(file))
    { }

public:
    virtual ~base_exception() noexcept { };

public:
    virtual char const *what() const noexcept override;

public:
    std::string const& function() const noexcept;

    uint32_t line_number() const noexcept;

    std::string const& source_file() const noexcept;

private:
    static std::string format_message(char const *msg, ...) noexcept;

private:
    std::string const m_what;

    std::string const m_function;

    uint32_t const m_line_number;

    std::string const m_source_file;
};

} // namespace exception
} // namespace psystem


std::ostream& operator<<(
    std::ostream& out,
    psystem::exception::base_exception const& ex) noexcept;


#endif // PSYSTEM_EXCEPTION_BASE_EXCEPTION_HPP