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3805
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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 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <iostream> |
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29 #include <fstream> |
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30 #include <string> |
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31 |
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32 #include "defun.h" |
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33 #include "error.h" |
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34 #include "input.h" |
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35 #include "pager.h" |
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36 #include "oct-obj.h" |
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37 #include "utils.h" |
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38 #include "parse.h" |
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39 #include "symtab.h" |
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40 #include "gripes.h" |
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41 #include "ov.h" |
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42 #include "ov-usr-fcn.h" |
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43 #include "ov-fcn.h" |
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44 #include "pt-pr-code.h" |
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45 #include "pt.h" |
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46 #include "pt-bp.h" |
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47 #include "pt-stmt.h" |
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48 #include "toplev.h" |
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49 #include "unwind-prot.h" |
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50 #include "variables.h" |
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51 |
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52 // Return a pointer to the user-defined function FNAME. If FNAME is |
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53 // empty, search backward for the first user-defined function in the |
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54 // current call stack. |
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55 |
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3949
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56 static octave_user_function * |
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57 get_user_function (std::string fname = "") |
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58 { |
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3956
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59 octave_user_function *dbg_fcn = 0; |
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60 |
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61 if (fname == "") |
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62 dbg_fcn = octave_call_stack::caller_user_function (); |
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63 else |
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64 { |
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65 symbol_record *ptr = curr_sym_tab->lookup (fname); |
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66 |
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67 if (ptr && ptr->is_user_function ()) |
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68 { |
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69 octave_value tmp = ptr->def (); |
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70 dbg_fcn = dynamic_cast<octave_user_function *> (tmp.function_value ()); |
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71 } |
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72 else |
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73 { |
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74 ptr = lookup_by_name (fname, false); |
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75 |
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76 if (ptr && ptr->is_user_function ()) |
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77 { |
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78 octave_value tmp = ptr->def (); |
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79 dbg_fcn = dynamic_cast<octave_user_function *> (tmp.function_value ()); |
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3805
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80 } |
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81 } |
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82 } |
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83 |
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84 return dbg_fcn; |
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85 } |
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86 |
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87 |
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4208
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88 DEFCMD (dbstop, args, , |
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89 "-*- texinfo -*-\n\ |
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90 @deftypefn {Loadable Function} {rline =} dbstop (func, line, @dots{})\n\ |
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91 Set a breakpoint in a function\n\ |
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92 @table @code\n\ |
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93 @item func\n\ |
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94 String representing the function name. When already in debug\n\ |
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95 mode this should be left out and only the line should be given.\n\ |
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96 @item line\n\ |
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97 Line you would like the breakpoint to be set on. Multiple\n\ |
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98 lines might be given as seperate arguments or as a vector.\n\ |
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99 @end table\n\ |
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100 \n\ |
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101 The rline returned is the real line that the breakpoint was set at.\n\ |
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102 @seealso{dbclear, dbstatus, dbnext}\n\ |
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103 @end deftypefn") |
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104 { |
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105 octave_value retval; |
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106 int nargin = args.length (); |
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107 int idx = 0; |
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108 std::string symbol_name = ""; |
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109 |
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110 if (nargin != 1 && args(0).is_string()) |
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111 { |
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112 symbol_name = args(0).string_value (); |
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113 idx = 1; |
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114 } |
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115 |
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116 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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117 |
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118 if (dbg_fcn) |
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119 { |
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120 octave_idx_type nsize = 10; |
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121 RowVector results (nsize); |
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122 octave_idx_type nr = 0; |
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123 |
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124 tree_statement_list *cmds = dbg_fcn->body (); |
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125 |
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126 for (int i = idx; i < nargin; i++) |
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127 { |
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6646
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128 if (args(i).is_string ()) |
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129 { |
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130 int line = atoi (args(i).string_value ().c_str ()); |
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131 |
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132 if (error_state) |
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133 break; |
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134 |
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135 if (nr == nsize) |
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136 { |
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137 nsize *= 2; |
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138 results.resize (nsize); |
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139 } |
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140 |
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141 results(nr++) = cmds->set_breakpoint (line); |
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142 } |
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143 else |
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144 { |
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145 const NDArray arg = args(i).array_value (); |
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146 |
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147 if (error_state) |
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148 break; |
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149 |
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150 for (octave_idx_type j = 0; j < arg.nelem(); j++) |
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151 { |
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152 int line = static_cast<int> (arg.elem (j)); |
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153 |
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154 if (error_state) |
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155 break; |
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156 |
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6646
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157 if (nr == nsize) |
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158 { |
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159 nsize *= 2; |
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160 results.resize (nsize); |
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161 } |
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162 |
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163 results(nr++) = cmds->set_breakpoint (line); |
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164 } |
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165 |
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166 if (error_state) |
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167 break; |
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168 } |
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169 } |
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170 |
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171 if (! error_state) |
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172 { |
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173 results.resize (nr); |
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174 retval = results; |
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175 } |
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176 } |
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177 else |
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178 error ("dbstop: unable to find the function requested\n"); |
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179 |
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180 return retval; |
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181 } |
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182 |
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183 DEFCMD (dbclear, args, , |
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184 "-*- texinfo -*-\n\ |
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185 @deftypefn {Loadable Function} {} dbclear (func, line, @dots{})\n\ |
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186 Delete a breakpoint in a function\n\ |
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187 @table @code\n\ |
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188 @item func\n\ |
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189 String representing the function name. When already in debug\n\ |
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190 mode this should be left out and only the line should be given.\n\ |
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191 @item line\n\ |
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192 Line where you would like to remove the the breakpoint. Multiple\n\ |
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193 lines might be given as seperate arguments or as a vector.\n\ |
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194 @end table\n\ |
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195 No checking is done to make sure that the line you requested is really\n\ |
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196 a breakpoint. If you get the wrong line nothing will happen.\n\ |
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197 @seealso{dbstop, dbstatus, dbwhere}\n\ |
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198 @end deftypefn") |
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3805
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199 { |
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200 octave_value retval; |
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6646
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201 int nargin = args.length (); |
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202 int idx = 0; |
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3805
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203 std::string symbol_name = ""; |
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6646
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204 |
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205 if (nargin != 1 && args(0).is_string()) |
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206 { |
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207 symbol_name = args(0).string_value (); |
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208 idx = 1; |
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209 } |
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3949
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210 |
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6646
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211 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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212 |
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213 if (dbg_fcn) |
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214 { |
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215 tree_statement_list *cmds = dbg_fcn->body (); |
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216 |
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217 for (int i = idx; i < nargin; i++) |
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218 { |
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219 if (args(i).is_string ()) |
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220 { |
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221 int line = atoi (args(i).string_value ().c_str ()); |
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222 |
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223 if (error_state) |
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224 break; |
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225 |
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226 cmds->delete_breakpoint (line); |
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227 } |
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228 else |
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229 { |
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230 const NDArray arg = args(i).array_value (); |
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231 |
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232 if (error_state) |
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233 break; |
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234 |
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235 for (octave_idx_type j = 0; j < arg.nelem (); j++) |
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236 { |
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237 int line = static_cast<int> (arg.elem (j)); |
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238 |
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239 if (error_state) |
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240 break; |
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241 |
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6646
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242 cmds->delete_breakpoint (line); |
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243 } |
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244 |
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245 if (error_state) |
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246 break; |
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247 } |
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248 } |
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249 } |
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250 else |
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251 error ("dbclear: unable to find the function requested\n"); |
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252 |
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253 return retval; |
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254 } |
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255 |
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4208
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256 DEFCMD (dbstatus, args, , |
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3805
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257 "-*- texinfo -*-\n\ |
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3895
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258 @deftypefn {Loadable Function} {lst =} dbstatus ([func])\n\ |
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259 Return a vector containing the lines on which a function has \n\ |
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260 breakpoints set.\n\ |
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261 @table @code\n\ |
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262 @item func\n\ |
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263 String representing the function name. When already in debug\n\ |
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264 mode this should be left out.\n\ |
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265 @end table\n\ |
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266 @seealso{dbclear, dbwhere}\n\ |
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267 @end deftypefn") |
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3805
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268 { |
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269 octave_value retval; |
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270 |
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271 int nargin = args.length (); |
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272 |
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273 if (nargin != 0 && nargin != 1) |
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274 { |
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3948
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275 error ("dbstatus: only zero or one arguements accepted\n"); |
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3805
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276 return retval; |
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277 } |
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278 |
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279 std::string symbol_name = ""; |
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280 |
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281 if (nargin == 1) |
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282 { |
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283 if (args(0).is_string ()) |
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284 symbol_name = args(0).string_value (); |
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285 else |
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3895
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286 gripe_wrong_type_arg ("dbstatus", args(0)); |
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3805
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287 } |
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288 |
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289 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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290 |
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3805
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291 if (dbg_fcn) |
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292 { |
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293 tree_statement_list *cmds = dbg_fcn->body (); |
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294 |
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295 octave_value_list lst = cmds->list_breakpoints (); |
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296 |
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297 RowVector vec (lst.length (), 0.0); |
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298 |
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299 for (int i = 0; i < lst.length (); i++) |
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3946
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300 { |
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3805
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301 vec(i) = lst(i).double_value (); |
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302 |
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303 if (error_state) |
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304 panic_impossible (); |
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305 } |
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306 |
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307 retval = octave_value (vec); |
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308 } |
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309 else |
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310 error ("dbstatus: unable to find the function you requested\n"); |
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3805
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311 |
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312 return retval; |
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313 } |
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314 |
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4208
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315 DEFCMD (dbwhere, , , |
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3805
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316 "-*- texinfo -*-\n\ |
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3895
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317 @deftypefn {Loadable Function} {} dbwhere ()\n\ |
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3805
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318 Show where we are in the code\n\ |
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319 @seealso{dbclear, dbstatus, dbstop}\n\ |
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5645
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320 @end deftypefn") |
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3805
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321 { |
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322 octave_value retval; |
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3946
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323 |
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5743
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324 octave_user_function *dbg_fcn = get_user_function (); |
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3805
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325 |
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326 if (dbg_fcn) |
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327 { |
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4748
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328 std::string name = dbg_fcn->name (); |
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3805
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329 |
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330 octave_stdout << name << ":"; |
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331 |
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332 const tree *dbg_stmt = tree::break_statement; |
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333 |
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334 if (dbg_stmt) |
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335 { |
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3946
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336 octave_stdout << "line " << dbg_stmt->line () << ", "; |
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3805
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337 octave_stdout << "column " << dbg_stmt->column () << std::endl; |
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338 } |
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339 else |
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340 octave_stdout << "-1\n"; |
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341 } |
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342 else |
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3948
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343 error ("dbwhere: must be inside of a user function to use dbwhere\n"); |
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344 |
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345 return retval; |
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346 } |
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347 |
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348 // Copied and modified from the do_type command in help.cc |
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3946
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349 // Maybe we could share some code? |
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350 void |
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3949
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351 do_dbtype (std::ostream& os, const std::string& name, int start, int end) |
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3895
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352 { |
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353 std::string ff = fcn_file_in_path (name); |
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354 |
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355 if (! ff.empty ()) |
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356 { |
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357 std::ifstream fs (ff.c_str (), std::ios::in); |
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3946
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358 |
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3895
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359 if (fs) |
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3946
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360 { |
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3895
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361 char ch; |
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362 int line = 1; |
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3946
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363 |
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3895
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364 if (line >= start && line <= end) |
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365 os << line << "\t"; |
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3946
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366 |
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3895
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367 while (fs.get (ch)) |
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368 { |
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369 if (line >= start && line <= end) |
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370 { |
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371 os << ch; |
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372 } |
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373 |
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374 if (ch == '\n') |
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375 { |
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376 line++; |
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377 if (line >= start && line <= end) |
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3946
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378 os << line << "\t"; |
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3895
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379 } |
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380 } |
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381 } |
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3946
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382 else |
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3949
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383 os << "dbtype: unable to open `" << ff << "' for reading!\n"; |
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3895
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384 } |
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385 else |
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6317
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386 os << "dbtype: unknown function " << name << "\n"; |
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3895
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387 |
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6646
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388 os.flush (); |
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3895
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389 } |
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390 |
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4208
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391 DEFCMD (dbtype, args, , |
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3895
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392 "-*- texinfo -*-\n\ |
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393 @deftypefn {Loadable Function} {} dbtype ()\n\ |
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|
394 List script file with line numbers.\n\ |
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5642
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395 @seealso{dbclear, dbstatus, dbstop}\n\ |
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396 @end deftypefn") |
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3895
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397 { |
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398 octave_value retval; |
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399 octave_user_function *dbg_fcn; |
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3946
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400 |
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3895
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401 int nargin = args.length (); |
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402 string_vector argv = args.make_argv ("dbtype"); |
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3946
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403 |
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3895
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404 if (! error_state) |
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405 { |
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406 switch (nargin) |
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407 { |
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408 case 0: // dbtype |
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409 dbg_fcn = get_user_function (); |
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410 |
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411 if (dbg_fcn) |
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4748
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412 do_dbtype (octave_stdout, dbg_fcn->name (), 0, INT_MAX); |
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3895
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413 else |
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3948
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414 error ("dbtype: must be in a user function to give no arguments to dbtype\n"); |
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3946
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415 break; |
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3895
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416 |
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3946
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417 case 1: // (dbtype func) || (dbtype start:end) |
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3948
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418 dbg_fcn = get_user_function (argv[1]); |
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3895
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419 |
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420 if (dbg_fcn) |
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4748
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421 do_dbtype (octave_stdout, dbg_fcn->name (), 0, INT_MAX); |
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3895
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422 else |
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423 { |
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424 dbg_fcn = get_user_function (""); |
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425 |
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426 if (dbg_fcn) |
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427 { |
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3948
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428 std::string arg = argv[1]; |
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429 |
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430 size_t ind = arg.find (':'); |
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3895
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431 |
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3948
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432 if (ind != NPOS) |
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433 { |
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434 std::string start_str = arg.substr (0, ind); |
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435 std::string end_str = arg.substr (ind + 1); |
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436 |
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437 int start = atoi (start_str.c_str ()); |
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438 int end = atoi (end_str.c_str ()); |
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3946
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439 |
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6317
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440 if (std::min (start, end) <= 0) |
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441 error ("dbtype: start and end lines must be >= 1\n"); |
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442 |
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443 if (start <= end) |
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444 do_dbtype (octave_stdout, dbg_fcn->name (), start, end); |
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3948
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445 else |
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6317
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446 error ("dbtype: start line must be less than end line\n"); |
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3895
|
447 } |
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3948
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448 else |
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6317
|
449 error ("dbtype: line specification must be `start:end'"); |
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3895
|
450 } |
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451 } |
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452 break; |
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3946
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453 |
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6317
|
454 case 2: // (dbtype func start:end) , (dbtype func start) |
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3948
|
455 dbg_fcn = get_user_function (argv[1]); |
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3895
|
456 |
|
|
457 if (dbg_fcn) |
|
|
458 { |
|
3948
|
459 std::string arg = argv[2]; |
|
6317
|
460 int start = 0; |
|
|
461 int end = 0; |
|
3948
|
462 size_t ind = arg.find (':'); |
|
3895
|
463 |
|
3948
|
464 if (ind != NPOS) |
|
3895
|
465 { |
|
3948
|
466 std::string start_str = arg.substr (0, ind); |
|
|
467 std::string end_str = arg.substr (ind + 1); |
|
3895
|
468 |
|
6317
|
469 start = atoi (start_str.c_str ()); |
|
|
470 end = atoi (end_str.c_str ()); |
|
|
471 |
|
3948
|
472 } |
|
|
473 else |
|
6317
|
474 { |
|
|
475 start = atoi (arg.c_str ()); |
|
|
476 end = start; |
|
|
477 } |
|
|
478 |
|
|
479 if (std::min (start, end) <= 0) |
|
|
480 error ("dbtype: start and end lines must be >= 1\n"); |
|
|
481 |
|
|
482 if (start <= end) |
|
|
483 do_dbtype (octave_stdout, dbg_fcn->name (), start, end); |
|
|
484 else |
|
|
485 error ("dbtype: start line must be less than end line\n"); |
|
3895
|
486 } |
|
3946
|
487 break; |
|
3895
|
488 |
|
|
489 default: |
|
3948
|
490 error ("dbtype: expecting zero, one, or two arguments\n"); |
|
3895
|
491 } |
|
|
492 } |
|
3805
|
493 |
|
|
494 return retval; |
|
|
495 } |
|
|
496 |
|
|
497 /* |
|
|
498 ;;; Local Variables: *** |
|
|
499 ;;; mode: C++ *** |
|
|
500 ;;; End: *** |
|
|
501 */ |
