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1 /* |
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2 |
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3 Copyright (C) 2001 Ben Sapp |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_tree_bp_h) |
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25 #define octave_tree_bp_h 1 |
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26 |
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27 #include "input.h" |
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28 #include "ov-usr-fcn.h" |
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29 #include "pt-walk.h" |
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30 #include "pt-pr-code.h" |
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31 #include "toplev.h" |
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32 |
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33 class tree; |
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34 |
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35 class |
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36 tree_breakpoint : public tree_walker |
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37 { |
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38 public: |
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39 |
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40 enum action { set = 1, clear = 2, list = 3 }; |
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41 |
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42 tree_breakpoint (int l, action a) |
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43 : line (l), act (a), found (false), bp_list () { } |
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44 |
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45 ~tree_breakpoint (void) { } |
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46 |
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47 bool success (void) const { return found; } |
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48 |
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49 void visit_argument_list (tree_argument_list&); |
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50 |
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51 void visit_binary_expression (tree_binary_expression&); |
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52 |
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53 void visit_break_command (tree_break_command&); |
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54 |
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55 void visit_colon_expression (tree_colon_expression&); |
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56 |
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57 void visit_continue_command (tree_continue_command&); |
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58 |
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59 void visit_decl_command (tree_decl_command&); |
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60 |
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61 void visit_decl_elt (tree_decl_elt&); |
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62 |
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63 void visit_decl_init_list (tree_decl_init_list&); |
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64 |
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65 void visit_while_command (tree_while_command&); |
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66 |
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67 void visit_do_until_command (tree_do_until_command&); |
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68 |
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69 void visit_simple_for_command (tree_simple_for_command&); |
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70 |
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71 void visit_complex_for_command (tree_complex_for_command&); |
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72 |
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73 void visit_octave_user_function (octave_user_function&); |
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74 |
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75 void visit_octave_user_function_header (octave_user_function&); |
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76 |
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77 void visit_octave_user_function_trailer (octave_user_function&); |
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78 |
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79 void visit_identifier (tree_identifier&); |
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80 |
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81 void visit_if_clause (tree_if_clause&); |
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82 |
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83 void visit_if_command (tree_if_command&); |
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84 |
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85 void visit_if_command_list (tree_if_command_list&); |
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86 |
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87 void visit_index_expression (tree_index_expression&); |
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88 |
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89 void visit_matrix (tree_matrix&); |
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90 |
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91 void visit_cell (tree_cell&); |
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92 |
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93 void visit_multi_assignment (tree_multi_assignment&); |
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94 |
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95 void visit_no_op_command (tree_no_op_command&); |
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96 |
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97 void visit_anon_fcn_handle (tree_anon_fcn_handle&); |
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98 |
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99 void visit_constant (tree_constant&); |
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100 |
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101 void visit_fcn_handle (tree_fcn_handle&); |
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102 |
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103 void visit_parameter_list (tree_parameter_list&); |
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104 |
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105 void visit_postfix_expression (tree_postfix_expression&); |
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106 |
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107 void visit_prefix_expression (tree_prefix_expression&); |
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108 |
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109 void visit_return_command (tree_return_command&); |
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110 |
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111 void visit_return_list (tree_return_list&); |
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112 |
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113 void visit_simple_assignment (tree_simple_assignment&); |
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114 |
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115 void visit_statement (tree_statement&); |
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116 |
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117 void visit_statement_list (tree_statement_list&); |
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118 |
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119 void visit_switch_case (tree_switch_case&); |
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120 |
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121 void visit_switch_case_list (tree_switch_case_list&); |
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122 |
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123 void visit_switch_command (tree_switch_command&); |
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124 |
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125 void visit_try_catch_command (tree_try_catch_command&); |
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126 |
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127 void visit_unwind_protect_command (tree_unwind_protect_command&); |
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128 |
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129 octave_value_list get_list (void) { return bp_list; } |
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130 |
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131 int get_line (void) { return line; } |
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132 |
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133 private: |
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134 |
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135 void take_action (tree &tr); |
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136 |
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137 // Statement line number we are looking for. |
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138 int line; |
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139 |
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140 // What to do. |
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141 action act; |
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142 |
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143 // Have we already found the line? |
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144 bool found; |
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145 |
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146 // List of breakpoint line numbers. |
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147 octave_value_list bp_list; |
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148 |
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149 // No copying! |
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150 |
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151 tree_breakpoint (const tree_breakpoint&); |
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152 |
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153 tree_breakpoint& operator = (const tree_breakpoint&); |
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154 }; |
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155 |
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156 // TRUE means SIGINT should put us in the debugger at the next |
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157 // available breakpoint. |
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158 extern bool octave_debug_on_interrupt_state; |
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159 |
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160 #define MAYBE_DO_BREAKPOINT \ |
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161 do \ |
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162 { \ |
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163 octave_function *xfcn = octave_call_stack::current (); \ |
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164 \ |
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165 if (octave_debug_on_interrupt_state \ |
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166 || (tree::break_next && tree::last_line == 0) \ |
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167 || (tree::break_next \ |
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168 && xfcn == tree::break_function \ |
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169 && tree::last_line != line ()) \ |
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170 || is_breakpoint ()) \ |
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171 { \ |
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172 octave_debug_on_interrupt_state = false; \ |
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173 \ |
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174 tree::break_next = false; \ |
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175 \ |
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176 if (xfcn) \ |
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177 octave_stdout << xfcn->name () << ": "; \ |
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178 \ |
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179 octave_stdout << "line " << line () << ", " \ |
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180 << "column " << column () \ |
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181 << std::endl; \ |
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182 \ |
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183 tree_print_code tpc (octave_stdout); \ |
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184 this->accept (tpc); \ |
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185 \ |
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186 octave_stdout << std::endl; \ |
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187 \ |
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188 tree::break_statement = this; \ |
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189 \ |
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190 do_keyboard (); \ |
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191 } \ |
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192 } \ |
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193 while (0) |
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194 |
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195 #endif |
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196 |
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197 /* |
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198 ;;; Local Variables: *** |
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199 ;;; mode: C++ *** |
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200 ;;; End: *** |
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201 */ |
