Mercurial > octave
view libinterp/parse-tree/pt.cc @ 21157:94fc5f13d51b
dbstop: conditional breakpoint, dbstop if caught error etc. (bug #46795)
* debug.cc (parse_dbfunction_params): Accept "in", "at" and "if" tokens.
Only breakpoints are returned; "dbstop if error" etc. are processed in
the parser.
* debug.cc (dbstop_process_map_ags, Fdbstop): set breakpoints etc. based on the
output of A=dbstatus. The structure of A is not Matlab compatible.
* debug.cc (do_add_breakpoint_1, do_get_breakpoint_list): Store file
(not subfunction) names in bp_set, to avoid crash in "dbclear all".
* debug.cc (dbclear_all_signals, condition_valid,
stop_on_err_warn_status): New function
* debug.cc (do_add_breakpoint): take "condition" parameter.
* debug.cc (do_get_breakpoint_list): Make invariant copy of bp_set (bug #44195)
* debug.cc (do_add_breakpoint, do_remove_breakpoint,
do_remove_all_breakpoints_in_file): More informative error messages.
* debug.cc (Fdbclear): clear break on signals (error, warning etc.)
* debug.cc (Fdbstatus): Return all breakpoints when debugging, so that
"s = dbstatus; ...; dbstop (s)" works.
(Related to bug #41338, bug #41556)
* debug.cc (Fdbstatus): Return structure with conditions, and "if error" etc.
* debug.h (debug_on_err, debug_on_caught, debug_on_warn): New functions
* debug.h: Rename "fname_line_map" to "fname_bp_map", as it has conditions
* error.cc (verror): Allow dbstop on selected errors, or errors in try/catch
* error.h New globals: Vdebug_on_caught, in_try_catch.
* toplev.cc: Experimental code for Matlab's "dbstop if naninf".
* symtab.cc (load_class_constructor): Add class constructors to list of
methods so they can be breakpointed
* pt-pb.{cc,h} (take_action): Add "condition" to set_breakpoint call,
track bp_cond_list.
* pt-eval.cc visit_.*_command: Ask if breakpoint condition is satisfied.
* pt-eval.cc (visit_try_catch_command): Count the number of levels of
try/catch we are in to allow "dbstop if caught error".
* pt-stmt.cc (set_breakpoint): Pass condition
* pt-stmt.cc (is_breakpoint): If new argument is true, only return true
if the condition is set.
* pt-stmt.cc (bp_cond, preakpoints_and_conds): new function
* pt-stmt.h: new declarations
* pt.{cc,h} (meets_bp_condition, bp_cond): New function
* octave-link.h (update_breakpoint): Accept condition
author | Lachlan Andrew <lachlanbis@gmail.com> |
---|---|
date | Sun, 24 Jan 2016 11:02:30 +1100 |
parents | 4197fc428c7d |
children | fcac5dbbf9ed |
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/* Copyright (C) 1996-2015 John W. Eaton This file is part of Octave. Octave 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 3 of the License, or (at your option) any later version. Octave 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 Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <iostream> #include <sstream> #include <string> #include "ov-fcn.h" #include "pt.h" #include "pt-pr-code.h" #include "unwind-prot.h" // Hide the details of the string buffer so that we are less likely to // create a memory leak. std::string tree::str_print_code (void) { std::ostringstream buf; tree_print_code tpc (buf); accept (tpc); std::string retval = buf.str (); return retval; } // function from libinterp/parse-tree/oct-parse.cc, not listed in oct-parse.h octave_value_list eval_string (const std::string&, bool, int&, int); // Is the current breakpoint condition met? bool tree::meets_bp_condition () const { bool retval; if (bp == 0) retval = false; else if (bp->length () == 0) // empty condition always met retval = true; else { int parse_status = 0; unwind_protect frame; frame.protect_var (buffer_error_messages); frame.protect_var (Vdebug_on_error); frame.protect_var (Vdebug_on_warning); buffer_error_messages++; Vdebug_on_error = false; Vdebug_on_warning = false; retval = true; // default to stopping if any error try { octave_value_list val = eval_string (*bp, 1, parse_status, 1); if (parse_status == 0) { if (! val(0).is_scalar_type ()) warning ("Breakpoint condition must be a scalar, not size %s", val(0).dims ().str ('x').c_str ()); else retval = val(0).bool_value (); } else warning ("Error parsing breakpoint condition"); } catch (const octave_execution_exception& e) { warning ("Error evaluating breakpoint condition:\n %s", last_error_message ().c_str ()); } } return retval; }