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# -*- shell-script -*-
# This program needs to be SOURCE'd and is not called as an executable
# Copyright (C) 2008 Rocky Bernstein rocky@gnu.org
#
# zshdb 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.
#
# zshdb 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 zshdb; see the file COPYING. If not, write to the Free Software
# Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.
#
# Enter the debugger at the calling stack frame. This is useful to
# hard-code a breakpoint at a given point in a program, even if the code
# is not otherwise being debugged.
# Leaving this the debugger terminates the program.
# Any parameters after the first one are exec'd. In this way you can
# force specific options to get set.
_Dbg_debugger() {
typeset _Dbg_trace_old_set_opts=$-
set +u
if (( $# > 0 )) ; then
step_ignore=$1
shift
else
typeset step_ignore=${_Dbg_step_ignore:-''}
fi
while (( $# > 0 )) ; do
eval $1
shift
done
if [[ -z $_Dbg_set_trace_init ]] ; then
_Dbg_set_trace_init=1
_Dbg_step_ignore=${step_ignore:-0}
_Dbg_write_journal "_Dbg_step_ignore=0"
else
_Dbg_step_ignore=${1:-1}
fi
set -${_Dbg_trace_old_set_opts}
unset _Dbg_trace_old_set_opts
trap '_Dbg_hook $? "$@"; ((2==$?)) && setopt errexit' DEBUG
}
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