pt-bp.h

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00001 /*
00002 
00003 Copyright (C) 2001-2012 Ben Sapp
00004 
00005 This file is part of Octave.
00006 
00007 Octave is free software; you can redistribute it and/or modify it
00008 under the terms of the GNU General Public License as published by the
00009 Free Software Foundation; either version 3 of the License, or (at your
00010 option) any later version.
00011 
00012 Octave is distributed in the hope that it will be useful, but WITHOUT
00013 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00014 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
00015 for more details.
00016 
00017 You should have received a copy of the GNU General Public License
00018 along with Octave; see the file COPYING.  If not, see
00019 <http://www.gnu.org/licenses/>.
00020 
00021 */
00022 
00023 #if !defined (octave_tree_bp_h)
00024 #define octave_tree_bp_h 1
00025 
00026 #include "input.h"
00027 #include "ov-usr-fcn.h"
00028 #include "pt-walk.h"
00029 #include "pt-pr-code.h"
00030 #include "toplev.h"
00031 
00032 class tree;
00033 class tree_decl_command;
00034 
00035 class
00036 tree_breakpoint : public tree_walker
00037 {
00038  public:
00039 
00040   enum action { set = 1, clear = 2, list = 3 };
00041 
00042   tree_breakpoint (int l, action a)
00043     : line (l), act (a), found (false), bp_list () { }
00044 
00045   ~tree_breakpoint (void) { }
00046 
00047   bool success (void) const { return found; }
00048 
00049   void visit_argument_list (tree_argument_list&);
00050 
00051   void visit_binary_expression (tree_binary_expression&);
00052 
00053   void visit_break_command (tree_break_command&);
00054 
00055   void visit_colon_expression (tree_colon_expression&);
00056 
00057   void visit_continue_command (tree_continue_command&);
00058 
00059   void visit_global_command (tree_global_command&);
00060 
00061   void visit_static_command (tree_static_command&);
00062 
00063   void visit_decl_elt (tree_decl_elt&);
00064 
00065   void visit_decl_init_list (tree_decl_init_list&);
00066 
00067   void visit_while_command (tree_while_command&);
00068 
00069   void visit_do_until_command (tree_do_until_command&);
00070 
00071   void visit_simple_for_command (tree_simple_for_command&);
00072 
00073   void visit_complex_for_command (tree_complex_for_command&);
00074 
00075   void visit_octave_user_script (octave_user_script&);
00076 
00077   void visit_octave_user_function (octave_user_function&);
00078 
00079   void visit_octave_user_function_header (octave_user_function&);
00080 
00081   void visit_octave_user_function_trailer (octave_user_function&);
00082 
00083   void visit_function_def (tree_function_def&);
00084 
00085   void visit_identifier (tree_identifier&);
00086 
00087   void visit_if_clause (tree_if_clause&);
00088 
00089   void visit_if_command (tree_if_command&);
00090 
00091   void visit_if_command_list (tree_if_command_list&);
00092 
00093   void visit_index_expression (tree_index_expression&);
00094 
00095   void visit_matrix (tree_matrix&);
00096 
00097   void visit_cell (tree_cell&);
00098 
00099   void visit_multi_assignment (tree_multi_assignment&);
00100 
00101   void visit_no_op_command (tree_no_op_command&);
00102 
00103   void visit_anon_fcn_handle (tree_anon_fcn_handle&);
00104 
00105   void visit_constant (tree_constant&);
00106 
00107   void visit_fcn_handle (tree_fcn_handle&);
00108 
00109   void visit_parameter_list (tree_parameter_list&);
00110 
00111   void visit_postfix_expression (tree_postfix_expression&);
00112 
00113   void visit_prefix_expression (tree_prefix_expression&);
00114 
00115   void visit_return_command (tree_return_command&);
00116 
00117   void visit_return_list (tree_return_list&);
00118 
00119   void visit_simple_assignment (tree_simple_assignment&);
00120 
00121   void visit_statement (tree_statement&);
00122 
00123   void visit_statement_list (tree_statement_list&);
00124 
00125   void visit_switch_case (tree_switch_case&);
00126 
00127   void visit_switch_case_list (tree_switch_case_list&);
00128 
00129   void visit_switch_command (tree_switch_command&);
00130 
00131   void visit_try_catch_command (tree_try_catch_command&);
00132 
00133   void visit_unwind_protect_command (tree_unwind_protect_command&);
00134 
00135   octave_value_list get_list (void) { return bp_list; }
00136 
00137   int get_line (void) { return line; }
00138 
00139  private:
00140 
00141   void do_decl_command (tree_decl_command&);
00142 
00143   void take_action (tree& tr);
00144 
00145   void take_action (tree_statement& stmt);
00146 
00147   // Statement line number we are looking for.
00148   int line;
00149 
00150   // What to do.
00151   action act;
00152 
00153   // Have we already found the line?
00154   bool found;
00155 
00156   // List of breakpoint line numbers.
00157   octave_value_list bp_list;
00158 
00159   // No copying!
00160 
00161   tree_breakpoint (const tree_breakpoint&);
00162 
00163   tree_breakpoint& operator = (const tree_breakpoint&);
00164 };
00165 
00166 // TRUE means SIGINT should put us in the debugger at the next
00167 // available breakpoint.
00168 extern bool octave_debug_on_interrupt_state;
00169 
00170 #endif
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