liboctave-dev 4.2.2-1ubuntu1 / usr / include / octave-4.2.2 / octave / pt-bp.h

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/*

Copyright (C) 2001-2017 Ben Sapp

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/>.

*/

#if ! defined (octave_pt_bp_h)
#define octave_pt_bp_h 1

#include "octave-config.h"

#include "input.h"
#include "ov-usr-fcn.h"
#include "pt-walk.h"
#include "pt-pr-code.h"
#include "interpreter.h"

class tree;
class tree_decl_command;

static std::string pt_bp_empty_string ("");
class
tree_breakpoint : public tree_walker
{
public:

  enum action { set = 1, clear = 2, list = 3 };

  tree_breakpoint (int l, action a, const std::string& c = pt_bp_empty_string)
    : line (l), act (a), condition (c), found (false), bp_list () { }

  ~tree_breakpoint (void) { }

  bool success (void) const { return found; }

  void visit_argument_list (tree_argument_list&);

  void visit_binary_expression (tree_binary_expression&);

  void visit_break_command (tree_break_command&);

  void visit_colon_expression (tree_colon_expression&);

  void visit_continue_command (tree_continue_command&);

  void visit_global_command (tree_global_command&);

  void visit_persistent_command (tree_persistent_command&);

  void visit_decl_elt (tree_decl_elt&);

  void visit_decl_init_list (tree_decl_init_list&);

  void visit_while_command (tree_while_command&);

  void visit_do_until_command (tree_do_until_command&);

  void visit_simple_for_command (tree_simple_for_command&);

  void visit_complex_for_command (tree_complex_for_command&);

  void visit_octave_user_script (octave_user_script&);

  void visit_octave_user_function (octave_user_function&);

  void visit_octave_user_function_header (octave_user_function&);

  void visit_octave_user_function_trailer (octave_user_function&);

  void visit_function_def (tree_function_def&);

  void visit_identifier (tree_identifier&);

  void visit_if_clause (tree_if_clause&);

  void visit_if_command (tree_if_command&);

  void visit_if_command_list (tree_if_command_list&);

  void visit_index_expression (tree_index_expression&);

  void visit_matrix (tree_matrix&);

  void visit_cell (tree_cell&);

  void visit_multi_assignment (tree_multi_assignment&);

  void visit_no_op_command (tree_no_op_command&);

  void visit_anon_fcn_handle (tree_anon_fcn_handle&);

  void visit_constant (tree_constant&);

  void visit_fcn_handle (tree_fcn_handle&);

  void visit_funcall (tree_funcall&);

  void visit_parameter_list (tree_parameter_list&);

  void visit_postfix_expression (tree_postfix_expression&);

  void visit_prefix_expression (tree_prefix_expression&);

  void visit_return_command (tree_return_command&);

  void visit_return_list (tree_return_list&);

  void visit_simple_assignment (tree_simple_assignment&);

  void visit_statement (tree_statement&);

  void visit_statement_list (tree_statement_list&);

  void visit_switch_case (tree_switch_case&);

  void visit_switch_case_list (tree_switch_case_list&);

  void visit_switch_command (tree_switch_command&);

  void visit_try_catch_command (tree_try_catch_command&);

  void visit_unwind_protect_command (tree_unwind_protect_command&);

  octave_value_list get_list (void) { return bp_list; }
  octave_value_list get_cond_list (void) { return bp_cond_list; }

  int get_line (void) { return found ? line : 0; }

private:

  void do_decl_command (tree_decl_command&);

  void take_action (tree& tr);

  void take_action (tree_statement& stmt);

  // Statement line number we are looking for.
  int line;

  // What to do.
  action act;

  // Expression which must be true to break
  std::string condition;

  // Have we already found the line?
  bool found;

  // List of breakpoint line numbers.
  octave_value_list bp_list;

  // List of breakpoint conditions.
  octave_value_list bp_cond_list;

  // No copying!

  tree_breakpoint (const tree_breakpoint&);

  tree_breakpoint& operator = (const tree_breakpoint&);
};

// TRUE means SIGINT should put us in the debugger at the next
// available breakpoint.
extern bool octave_debug_on_interrupt_state;

#endif

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