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1 /* |
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2 |
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3 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 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 3 of the License, or (at your |
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10 option) any 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, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <iostream> |
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28 #include <fstream> |
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29 #include <string> |
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30 |
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31 #include "defun.h" |
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32 #include "error.h" |
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33 #include "input.h" |
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34 #include "pager.h" |
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35 #include "oct-obj.h" |
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36 #include "utils.h" |
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37 #include "parse.h" |
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38 #include "symtab.h" |
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39 #include "gripes.h" |
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40 #include "ov.h" |
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41 #include "ov-usr-fcn.h" |
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42 #include "ov-fcn.h" |
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43 #include "pt-pr-code.h" |
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44 #include "pt.h" |
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45 #include "pt-bp.h" |
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46 #include "pt-stmt.h" |
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47 #include "toplev.h" |
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48 #include "unwind-prot.h" |
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49 #include "variables.h" |
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50 |
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51 // Return a pointer to the user-defined function FNAME. If FNAME is |
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52 // empty, search backward for the first user-defined function in the |
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53 // current call stack. |
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54 |
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55 static octave_user_function * |
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56 get_user_function (std::string fname = "") |
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57 { |
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58 octave_user_function *dbg_fcn = 0; |
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59 |
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60 if (fname == "") |
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61 dbg_fcn = octave_call_stack::caller_user_function (); |
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62 else |
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63 { |
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64 symbol_record *ptr = curr_sym_tab->lookup (fname); |
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65 |
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66 if (ptr && ptr->is_user_function ()) |
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67 { |
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68 octave_value tmp = ptr->def (); |
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69 dbg_fcn = dynamic_cast<octave_user_function *> (tmp.function_value ()); |
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70 } |
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71 else |
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72 { |
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73 ptr = lookup_by_name (fname, false); |
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74 |
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75 if (ptr && ptr->is_user_function ()) |
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76 { |
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77 octave_value tmp = ptr->def (); |
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78 dbg_fcn = dynamic_cast<octave_user_function *> (tmp.function_value ()); |
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79 } |
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80 } |
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81 } |
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82 |
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83 return dbg_fcn; |
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84 } |
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85 |
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86 |
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87 DEFCMD (dbstop, args, , |
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88 "-*- texinfo -*-\n\ |
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89 @deftypefn {Loadable Function} {rline =} dbstop (func, line, @dots{})\n\ |
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90 Set a breakpoint in a function\n\ |
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91 @table @code\n\ |
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92 @item func\n\ |
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93 String representing the function name. When already in debug\n\ |
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94 mode this should be left out and only the line should be given.\n\ |
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95 @item line\n\ |
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96 Line you would like the breakpoint to be set on. Multiple\n\ |
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97 lines might be given as separate arguments or as a vector.\n\ |
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98 @end table\n\ |
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99 \n\ |
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100 The rline returned is the real line that the breakpoint was set at.\n\ |
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101 @seealso{dbclear, dbstatus, dbnext}\n\ |
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102 @end deftypefn") |
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103 { |
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104 octave_value retval; |
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105 int nargin = args.length (); |
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106 int idx = 0; |
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107 std::string symbol_name = ""; |
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108 |
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109 if (nargin != 1 && args(0).is_string()) |
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110 { |
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111 symbol_name = args(0).string_value (); |
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112 idx = 1; |
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113 } |
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114 |
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115 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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116 |
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117 if (dbg_fcn) |
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118 { |
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119 octave_idx_type nsize = 10; |
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120 RowVector results (nsize); |
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121 octave_idx_type nr = 0; |
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122 |
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123 tree_statement_list *cmds = dbg_fcn->body (); |
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124 |
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125 for (int i = idx; i < nargin; i++) |
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126 { |
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127 if (args(i).is_string ()) |
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128 { |
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129 int line = atoi (args(i).string_value ().c_str ()); |
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130 |
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131 if (error_state) |
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132 break; |
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133 |
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134 if (nr == nsize) |
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135 { |
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136 nsize *= 2; |
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137 results.resize (nsize); |
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138 } |
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139 |
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140 results(nr++) = cmds->set_breakpoint (line); |
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141 } |
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142 else |
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143 { |
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144 const NDArray arg = args(i).array_value (); |
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145 |
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146 if (error_state) |
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147 break; |
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148 |
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149 for (octave_idx_type j = 0; j < arg.nelem(); j++) |
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150 { |
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151 int line = static_cast<int> (arg.elem (j)); |
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152 |
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153 if (error_state) |
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154 break; |
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155 |
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156 if (nr == nsize) |
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157 { |
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158 nsize *= 2; |
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159 results.resize (nsize); |
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160 } |
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161 |
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162 results(nr++) = cmds->set_breakpoint (line); |
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163 } |
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164 |
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165 if (error_state) |
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166 break; |
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167 } |
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168 } |
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169 |
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170 if (! error_state) |
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171 { |
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172 results.resize (nr); |
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173 retval = results; |
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174 } |
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175 } |
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176 else |
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177 error ("dbstop: unable to find the function requested\n"); |
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178 |
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179 return retval; |
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180 } |
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181 |
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182 DEFCMD (dbclear, args, , |
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183 "-*- texinfo -*-\n\ |
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184 @deftypefn {Loadable Function} {} dbclear (func, line, @dots{})\n\ |
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185 Delete a breakpoint in a function\n\ |
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186 @table @code\n\ |
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187 @item func\n\ |
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188 String representing the function name. When already in debug\n\ |
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189 mode this should be left out and only the line should be given.\n\ |
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190 @item line\n\ |
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191 Line where you would like to remove the breakpoint. Multiple\n\ |
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192 lines might be given as separate arguments or as a vector.\n\ |
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193 @end table\n\ |
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194 No checking is done to make sure that the line you requested is really\n\ |
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195 a breakpoint. If you get the wrong line nothing will happen.\n\ |
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196 @seealso{dbstop, dbstatus, dbwhere}\n\ |
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197 @end deftypefn") |
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198 { |
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199 octave_value retval; |
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200 int nargin = args.length (); |
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201 int idx = 0; |
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202 std::string symbol_name = ""; |
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203 |
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204 if (nargin != 1 && args(0).is_string()) |
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205 { |
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206 symbol_name = args(0).string_value (); |
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207 idx = 1; |
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208 } |
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209 |
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210 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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211 |
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212 if (dbg_fcn) |
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213 { |
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214 tree_statement_list *cmds = dbg_fcn->body (); |
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215 |
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216 for (int i = idx; i < nargin; i++) |
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217 { |
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218 if (args(i).is_string ()) |
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219 { |
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220 int line = atoi (args(i).string_value ().c_str ()); |
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221 |
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222 if (error_state) |
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223 break; |
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224 |
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225 cmds->delete_breakpoint (line); |
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226 } |
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227 else |
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228 { |
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229 const NDArray arg = args(i).array_value (); |
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230 |
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231 if (error_state) |
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232 break; |
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233 |
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234 for (octave_idx_type j = 0; j < arg.nelem (); j++) |
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235 { |
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236 int line = static_cast<int> (arg.elem (j)); |
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237 |
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238 if (error_state) |
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239 break; |
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240 |
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241 cmds->delete_breakpoint (line); |
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242 } |
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243 |
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244 if (error_state) |
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245 break; |
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246 } |
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247 } |
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248 } |
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249 else |
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250 error ("dbclear: unable to find the function requested\n"); |
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251 |
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252 return retval; |
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253 } |
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254 |
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255 DEFCMD (dbstatus, args, , |
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256 "-*- texinfo -*-\n\ |
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257 @deftypefn {Loadable Function} {lst =} dbstatus ([func])\n\ |
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258 Return a vector containing the lines on which a function has \n\ |
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259 breakpoints set.\n\ |
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260 @table @code\n\ |
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261 @item func\n\ |
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262 String representing the function name. When already in debug\n\ |
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263 mode this should be left out.\n\ |
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264 @end table\n\ |
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265 @seealso{dbclear, dbwhere}\n\ |
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266 @end deftypefn") |
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267 { |
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268 octave_value retval; |
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269 |
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270 int nargin = args.length (); |
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271 |
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272 if (nargin != 0 && nargin != 1) |
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273 { |
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274 error ("dbstatus: only zero or one arguements accepted\n"); |
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275 return retval; |
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276 } |
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277 |
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278 std::string symbol_name = ""; |
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279 |
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280 if (nargin == 1) |
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281 { |
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282 if (args(0).is_string ()) |
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283 symbol_name = args(0).string_value (); |
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284 else |
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285 gripe_wrong_type_arg ("dbstatus", args(0)); |
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286 } |
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287 |
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288 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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289 |
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290 if (dbg_fcn) |
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291 { |
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292 tree_statement_list *cmds = dbg_fcn->body (); |
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293 |
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294 octave_value_list lst = cmds->list_breakpoints (); |
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295 |
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296 RowVector vec (lst.length (), 0.0); |
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297 |
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298 for (int i = 0; i < lst.length (); i++) |
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299 { |
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300 vec(i) = lst(i).double_value (); |
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301 |
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302 if (error_state) |
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303 panic_impossible (); |
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304 } |
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305 |
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306 retval = octave_value (vec); |
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307 } |
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308 else |
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309 error ("dbstatus: unable to find the function you requested\n"); |
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310 |
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311 return retval; |
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312 } |
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313 |
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314 DEFCMD (dbwhere, , , |
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315 "-*- texinfo -*-\n\ |
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316 @deftypefn {Loadable Function} {} dbwhere ()\n\ |
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317 Show where we are in the code\n\ |
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318 @seealso{dbclear, dbstatus, dbstop}\n\ |
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319 @end deftypefn") |
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320 { |
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321 octave_value retval; |
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322 |
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323 octave_user_function *dbg_fcn = get_user_function (); |
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324 |
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325 if (dbg_fcn) |
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326 { |
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327 std::string name = dbg_fcn->name (); |
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328 |
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329 octave_stdout << name << ":"; |
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330 |
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331 const tree *dbg_stmt = tree::break_statement; |
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332 |
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333 if (dbg_stmt) |
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334 { |
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335 octave_stdout << "line " << dbg_stmt->line () << ", "; |
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336 octave_stdout << "column " << dbg_stmt->column () << std::endl; |
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337 } |
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338 else |
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339 octave_stdout << "-1\n"; |
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340 } |
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341 else |
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342 error ("dbwhere: must be inside of a user function to use dbwhere\n"); |
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343 |
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344 return retval; |
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345 } |
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346 |
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347 // Copied and modified from the do_type command in help.cc |
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348 // Maybe we could share some code? |
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349 void |
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350 do_dbtype (std::ostream& os, const std::string& name, int start, int end) |
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351 { |
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352 std::string ff = fcn_file_in_path (name); |
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353 |
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354 if (! ff.empty ()) |
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355 { |
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356 std::ifstream fs (ff.c_str (), std::ios::in); |
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357 |
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358 if (fs) |
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359 { |
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360 char ch; |
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361 int line = 1; |
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362 |
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363 if (line >= start && line <= end) |
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364 os << line << "\t"; |
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365 |
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366 while (fs.get (ch)) |
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367 { |
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368 if (line >= start && line <= end) |
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369 { |
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370 os << ch; |
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371 } |
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372 |
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373 if (ch == '\n') |
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374 { |
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375 line++; |
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376 if (line >= start && line <= end) |
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377 os << line << "\t"; |
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378 } |
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379 } |
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380 } |
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381 else |
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382 os << "dbtype: unable to open `" << ff << "' for reading!\n"; |
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383 } |
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384 else |
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385 os << "dbtype: unknown function " << name << "\n"; |
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386 |
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6646
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387 os.flush (); |
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388 } |
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389 |
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4208
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390 DEFCMD (dbtype, args, , |
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3895
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391 "-*- texinfo -*-\n\ |
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392 @deftypefn {Loadable Function} {} dbtype ()\n\ |
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393 List script file with line numbers.\n\ |
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5642
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394 @seealso{dbclear, dbstatus, dbstop}\n\ |
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395 @end deftypefn") |
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396 { |
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397 octave_value retval; |
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398 octave_user_function *dbg_fcn; |
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3946
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399 |
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400 int nargin = args.length (); |
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401 string_vector argv = args.make_argv ("dbtype"); |
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3946
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402 |
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3895
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403 if (! error_state) |
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404 { |
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405 switch (nargin) |
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406 { |
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407 case 0: // dbtype |
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408 dbg_fcn = get_user_function (); |
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409 |
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410 if (dbg_fcn) |
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4748
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411 do_dbtype (octave_stdout, dbg_fcn->name (), 0, INT_MAX); |
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3895
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412 else |
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3948
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413 error ("dbtype: must be in a user function to give no arguments to dbtype\n"); |
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3946
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414 break; |
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3895
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415 |
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3946
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416 case 1: // (dbtype func) || (dbtype start:end) |
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3948
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417 dbg_fcn = get_user_function (argv[1]); |
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418 |
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419 if (dbg_fcn) |
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4748
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420 do_dbtype (octave_stdout, dbg_fcn->name (), 0, INT_MAX); |
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3895
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421 else |
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422 { |
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423 dbg_fcn = get_user_function (""); |
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424 |
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425 if (dbg_fcn) |
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426 { |
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3948
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427 std::string arg = argv[1]; |
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428 |
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429 size_t ind = arg.find (':'); |
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3895
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430 |
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3948
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431 if (ind != NPOS) |
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432 { |
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433 std::string start_str = arg.substr (0, ind); |
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434 std::string end_str = arg.substr (ind + 1); |
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435 |
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436 int start = atoi (start_str.c_str ()); |
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437 int end = atoi (end_str.c_str ()); |
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3946
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438 |
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6317
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439 if (std::min (start, end) <= 0) |
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440 error ("dbtype: start and end lines must be >= 1\n"); |
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441 |
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442 if (start <= end) |
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443 do_dbtype (octave_stdout, dbg_fcn->name (), start, end); |
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3948
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444 else |
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6317
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445 error ("dbtype: start line must be less than end line\n"); |
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3895
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446 } |
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3948
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447 else |
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6317
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448 error ("dbtype: line specification must be `start:end'"); |
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3895
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449 } |
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450 } |
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451 break; |
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3946
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452 |
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6317
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453 case 2: // (dbtype func start:end) , (dbtype func start) |
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3948
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454 dbg_fcn = get_user_function (argv[1]); |
|
3895
|
455 |
|
|
456 if (dbg_fcn) |
|
|
457 { |
|
3948
|
458 std::string arg = argv[2]; |
|
6317
|
459 int start = 0; |
|
|
460 int end = 0; |
|
3948
|
461 size_t ind = arg.find (':'); |
|
3895
|
462 |
|
3948
|
463 if (ind != NPOS) |
|
3895
|
464 { |
|
3948
|
465 std::string start_str = arg.substr (0, ind); |
|
|
466 std::string end_str = arg.substr (ind + 1); |
|
3895
|
467 |
|
6317
|
468 start = atoi (start_str.c_str ()); |
|
|
469 end = atoi (end_str.c_str ()); |
|
|
470 |
|
3948
|
471 } |
|
|
472 else |
|
6317
|
473 { |
|
|
474 start = atoi (arg.c_str ()); |
|
|
475 end = start; |
|
|
476 } |
|
|
477 |
|
|
478 if (std::min (start, end) <= 0) |
|
|
479 error ("dbtype: start and end lines must be >= 1\n"); |
|
|
480 |
|
|
481 if (start <= end) |
|
|
482 do_dbtype (octave_stdout, dbg_fcn->name (), start, end); |
|
|
483 else |
|
|
484 error ("dbtype: start line must be less than end line\n"); |
|
3895
|
485 } |
|
3946
|
486 break; |
|
3895
|
487 |
|
|
488 default: |
|
3948
|
489 error ("dbtype: expecting zero, one, or two arguments\n"); |
|
3895
|
490 } |
|
|
491 } |
|
3805
|
492 |
|
|
493 return retval; |
|
|
494 } |
|
|
495 |
|
|
496 /* |
|
|
497 ;;; Local Variables: *** |
|
|
498 ;;; mode: C++ *** |
|
|
499 ;;; End: *** |
|
|
500 */ |
