64 lines
1.8 KiB
Modula-2
64 lines
1.8 KiB
Modula-2
This file is return.def, from which is created return.c.
|
|
It implements the builtin "return" in Bash.
|
|
|
|
Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Bash, the Bourne Again SHell.
|
|
|
|
Bash is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
version.
|
|
|
|
Bash is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with Bash; see the file COPYING. If not, write to the Free Software
|
|
Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
|
|
|
|
$PRODUCES return.c
|
|
|
|
$BUILTIN return
|
|
|
|
$FUNCTION return_builtin
|
|
$SHORT_DOC return [n]
|
|
Causes a function to exit with the return value specified by N. If N
|
|
is omitted, the return status is that of the last command.
|
|
$END
|
|
|
|
#include <config.h>
|
|
|
|
#if defined (HAVE_UNISTD_H)
|
|
# ifdef _MINIX
|
|
# include <sys/types.h>
|
|
# endif
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#include "../shell.h"
|
|
#include "common.h"
|
|
|
|
extern int last_command_exit_value;
|
|
extern int subshell_environment;
|
|
extern int return_catch_flag, return_catch_value;
|
|
|
|
/* If we are executing a user-defined function then exit with the value
|
|
specified as an argument. if no argument is given, then the last
|
|
exit status is used. */
|
|
int
|
|
return_builtin (list)
|
|
WORD_LIST *list;
|
|
{
|
|
return_catch_value = list ? get_exitstat (list) : last_command_exit_value;
|
|
|
|
if (return_catch_flag)
|
|
longjmp (return_catch, 1);
|
|
else
|
|
{
|
|
builtin_error ("can only `return' from a function or sourced script");
|
|
return (EXECUTION_FAILURE);
|
|
}
|
|
}
|