mpw-shell/error.h

81 lines
1.7 KiB
C
Raw Normal View History

2016-02-02 21:19:13 +00:00
#ifndef __mpw_error_h__
#define __mpw_error_h__
#include <stdexcept>
#include <system_error>
class mpw_error : public std::runtime_error {
2016-02-02 21:19:13 +00:00
public:
mpw_error(int status, const std::string &s) : std::runtime_error(s), _status(status)
2016-02-02 21:19:13 +00:00
{}
mpw_error(int status, const char *s) : std::runtime_error(s), _status(status)
{}
2016-08-06 02:00:48 +00:00
int status() const noexcept { return _status; }
2016-02-02 21:19:13 +00:00
private:
2016-07-27 18:04:57 +00:00
int _status;
};
class execution_of_input_terminated : public mpw_error {
public:
execution_of_input_terminated(int status = -9) :
2016-07-27 18:04:57 +00:00
mpw_error(status, "MPW Shell - Execution of input Terminated.")
{}
};
class break_error : public mpw_error {
public:
break_error(int status = -3) :
mpw_error(status, "MPW Shell - Break must be within for or loop.")
{}
2016-02-02 21:19:13 +00:00
};
class continue_error : public mpw_error {
public:
continue_error(int status = -3) :
mpw_error(status, "MPW Shell - Continue must be within for or loop.")
{}
};
2016-07-27 18:04:57 +00:00
class estring_error: public mpw_error {
public:
estring_error(int status = -3) :
mpw_error(status, "MPW Shell - `s must occur in pairs.")
{}
};
class vstring_error: public mpw_error {
public:
vstring_error(int status = -3) :
mpw_error(status, "MPW Shell - {s must occur in pairs.")
{}
};
2016-07-27 18:04:57 +00:00
class sstring_error: public mpw_error {
public:
sstring_error(int status = -3) :
mpw_error(status, "MPW Shell - 's must occur in pairs.")
{}
};
class dstring_error: public mpw_error {
public:
dstring_error(int status = -3) :
mpw_error(status, "MPW Shell - \"s must occur in pairs.")
{}
};
/*
these are used for flow-control.
they do not inherit from std::exception to prevent being caught
by normal handlers.
*/
struct break_command_t {};
struct continue_command_t {};
struct exit_command_t { int value = 0; };
struct quit_command_t {};
2016-02-02 21:19:13 +00:00
#endif