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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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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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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_script (); |
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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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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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88 DEFCMD (dbstop, args, , |
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89 "-*- texinfo -*-\n\ |
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90 @deftypefn {Loadable Function} {rline =} dbstop (func, line)\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\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 |
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106 int result = -1; |
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107 int nargin = args.length (); |
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108 |
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109 string_vector argv = args.make_argv ("dbstop"); |
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110 |
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111 if (error_state) |
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112 return retval; |
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113 |
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114 if (nargin == 2) |
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115 { |
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116 std::string symbol_name = argv[1]; |
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117 |
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118 std::string line_number = argv[2]; |
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119 |
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120 int line = atoi (line_number.c_str ()); |
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121 |
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122 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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123 |
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124 if (dbg_fcn) |
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125 { |
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126 tree_statement_list *cmds = dbg_fcn->body (); |
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127 result = cmds->set_breakpoint (line); |
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128 } |
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129 else |
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130 error ("dbstop: unable to find the function requested\n"); |
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131 } |
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132 else if (nargin == 1) |
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133 { |
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134 std::string line_number = argv[1]; |
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135 |
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136 int line = atoi (line_number.c_str ()); |
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137 |
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138 octave_user_function *dbg_fcn = get_user_function (); |
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139 |
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140 if (dbg_fcn) |
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141 { |
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142 tree_statement_list *cmds = dbg_fcn->body (); |
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143 result = cmds->set_breakpoint (line); |
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144 } |
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145 else |
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146 error ("dbstop: unable to find the function requested\n"); |
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147 } |
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148 else |
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149 error ("dbstop: one argument when in a function and two when not\n"); |
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150 |
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151 retval = result; |
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152 |
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153 return retval; |
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154 } |
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155 |
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156 DEFCMD (dbclear, args, , |
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157 "-*- texinfo -*-\n\ |
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158 @deftypefn {Loadable Function} {} dbclear (func, line)\n\ |
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159 Delete a breakpoint in a function\n\ |
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160 @table @code\n\ |
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161 @item func\n\ |
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162 String representing the function name. When already in debug\n\ |
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163 mode this should be left out and only the line should be given.\n\ |
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164 @item line\n\ |
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165 Line where you would like to remove the the breakpoint\n\ |
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166 @end table\n\ |
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167 No checking is done to make sure that the line you requested is really\n\ |
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168 a breakpoint. If you get the wrong line nothing will happen.\n\ |
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169 @seealso{dbstop, dbstatus, dbwhere}\n\ |
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170 @end deftypefn") |
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171 { |
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172 octave_value retval; |
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173 |
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174 std::string symbol_name = ""; |
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175 std::string line_number; |
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176 |
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177 int line = -1; |
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178 int nargin = args.length (); |
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179 |
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180 string_vector argv = args.make_argv ("dbclear"); |
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181 |
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182 if (error_state) |
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183 return retval; |
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184 |
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185 if (nargin == 1 || nargin == 2) |
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186 { |
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187 if (nargin == 2) |
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188 { |
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189 symbol_name = argv[1]; |
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190 |
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191 octave_stdout << argv[1] << std::endl; |
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192 line_number = argv[2]; |
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193 } |
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194 else if (nargin == 1) |
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195 { |
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196 line_number = argv[1]; |
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197 } |
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198 |
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199 if (line_number.compare ("all") && line_number.compare ("ALL")) |
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200 line = atoi (line_number.c_str ()); |
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201 else |
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202 line = -1; |
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203 |
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204 octave_stdout << "symbol_name = " << symbol_name << std::endl; |
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205 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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206 |
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207 if (dbg_fcn) |
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208 { |
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209 tree_statement_list *cmds = dbg_fcn->body (); |
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210 cmds->delete_breakpoint (line); |
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211 } |
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212 else |
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213 error ("dbclear: unable to find the function requested\n"); |
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214 } |
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215 else |
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216 error ("dbclear: expecting one or two arguements\n"); |
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217 |
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218 return retval; |
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219 } |
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220 |
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221 DEFCMD (dbstatus, args, , |
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222 "-*- texinfo -*-\n\ |
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223 @deftypefn {Loadable Function} {lst =} dbstatus ([func])\n\ |
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224 Return a vector containing the lines on which a function has \n\ |
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225 breakpoints set.\n\ |
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226 @table @code\n\ |
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227 @item func\n\ |
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228 String representing the function name. When already in debug\n\ |
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229 mode this should be left out.\n\ |
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230 @end table\n\ |
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231 @seealso{dbclear, dbwhere}\n\ |
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232 @end deftypefn") |
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233 { |
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234 octave_value retval; |
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235 |
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236 int nargin = args.length (); |
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237 |
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238 if (nargin != 0 && nargin != 1) |
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239 { |
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240 error ("dbstatus: only zero or one arguements accepted\n"); |
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241 return retval; |
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242 } |
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243 |
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244 std::string symbol_name = ""; |
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245 |
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246 if (nargin == 1) |
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247 { |
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248 if (args(0).is_string ()) |
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249 symbol_name = args(0).string_value (); |
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250 else |
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251 gripe_wrong_type_arg ("dbstatus", args(0)); |
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252 } |
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253 |
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254 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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255 |
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256 if (dbg_fcn) |
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257 { |
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258 tree_statement_list *cmds = dbg_fcn->body (); |
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259 |
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260 octave_value_list lst = cmds->list_breakpoints (); |
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261 |
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262 RowVector vec (lst.length (), 0.0); |
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263 |
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264 for (int i = 0; i < lst.length (); i++) |
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265 { |
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266 vec(i) = lst(i).double_value (); |
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267 |
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268 if (error_state) |
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269 panic_impossible (); |
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270 } |
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271 |
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272 retval = octave_value (vec); |
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273 } |
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274 else |
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275 error ("dbstatus: unable to find the function you requested\n"); |
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276 |
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277 return retval; |
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278 } |
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279 |
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280 DEFCMD (dbwhere, , , |
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281 "-*- texinfo -*-\n\ |
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282 @deftypefn {Loadable Function} {} dbwhere ()\n\ |
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283 Show where we are in the code\n\ |
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284 @seealso{dbclear, dbstatus, dbstop}\n\ |
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285 @end deftypefn") |
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286 { |
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287 octave_value retval; |
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288 |
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289 octave_user_function *dbg_fcn = get_user_function (); |
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290 |
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291 if (dbg_fcn) |
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292 { |
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293 std::string name = dbg_fcn->name (); |
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294 |
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295 octave_stdout << name << ":"; |
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296 |
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297 const tree *dbg_stmt = tree::break_statement; |
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298 |
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299 if (dbg_stmt) |
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300 { |
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301 octave_stdout << "line " << dbg_stmt->line () << ", "; |
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302 octave_stdout << "column " << dbg_stmt->column () << std::endl; |
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303 } |
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304 else |
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305 octave_stdout << "-1\n"; |
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306 } |
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307 else |
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308 error ("dbwhere: must be inside of a user function to use dbwhere\n"); |
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309 |
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310 return retval; |
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311 } |
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312 |
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313 // Copied and modified from the do_type command in help.cc |
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314 // Maybe we could share some code? |
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315 void |
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3949
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316 do_dbtype (std::ostream& os, const std::string& name, int start, int end) |
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317 { |
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318 std::string ff = fcn_file_in_path (name); |
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319 |
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320 if (! ff.empty ()) |
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321 { |
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322 std::ifstream fs (ff.c_str (), std::ios::in); |
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323 |
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324 if (fs) |
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325 { |
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326 char ch; |
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327 int line = 1; |
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3946
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328 |
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329 if (line >= start && line <= end) |
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330 os << line << "\t"; |
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331 |
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332 while (fs.get (ch)) |
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333 { |
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334 if (line >= start && line <= end) |
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335 { |
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336 os << ch; |
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337 } |
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338 |
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339 if (ch == '\n') |
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340 { |
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341 line++; |
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342 if (line >= start && line <= end) |
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343 os << line << "\t"; |
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344 } |
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345 } |
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346 } |
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347 else |
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348 os << "dbtype: unable to open `" << ff << "' for reading!\n"; |
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349 } |
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350 else |
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351 os << "dbtype: unkown function"; |
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352 |
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353 } |
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354 |
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4208
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355 DEFCMD (dbtype, args, , |
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356 "-*- texinfo -*-\n\ |
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357 @deftypefn {Loadable Function} {} dbtype ()\n\ |
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358 List script file with line numbers.\n\ |
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359 @seealso{dbclear, dbstatus, dbstop}\n\ |
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360 @end deftypefn") |
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3895
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361 { |
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362 octave_value retval; |
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363 octave_user_function *dbg_fcn; |
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3946
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364 |
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3895
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365 int nargin = args.length (); |
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366 string_vector argv = args.make_argv ("dbtype"); |
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3946
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367 |
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3895
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368 if (! error_state) |
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369 { |
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370 switch (nargin) |
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371 { |
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372 case 0: // dbtype |
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373 dbg_fcn = get_user_function (); |
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374 |
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375 if (dbg_fcn) |
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4748
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376 do_dbtype (octave_stdout, dbg_fcn->name (), 0, INT_MAX); |
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377 else |
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378 error ("dbtype: must be in a user function to give no arguments to dbtype\n"); |
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3946
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379 break; |
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3895
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380 |
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3946
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381 case 1: // (dbtype func) || (dbtype start:end) |
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3948
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382 dbg_fcn = get_user_function (argv[1]); |
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3895
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383 |
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384 if (dbg_fcn) |
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4748
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385 do_dbtype (octave_stdout, dbg_fcn->name (), 0, INT_MAX); |
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3895
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386 else |
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387 { |
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388 dbg_fcn = get_user_function (""); |
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389 |
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390 if (dbg_fcn) |
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391 { |
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3948
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392 std::string arg = argv[1]; |
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393 |
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394 size_t ind = arg.find (':'); |
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3895
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395 |
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3948
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396 if (ind != NPOS) |
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397 { |
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398 std::string start_str = arg.substr (0, ind); |
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399 std::string end_str = arg.substr (ind + 1); |
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400 |
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401 int start = atoi (start_str.c_str ()); |
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402 int end = atoi (end_str.c_str ()); |
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3946
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403 |
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3948
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404 if (start < end) |
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405 do_dbtype (octave_stdout, |
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4748
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406 dbg_fcn->name (), start, end); |
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3948
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407 else |
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408 error ("dbtype: the start line must be less than the end line\n"); |
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3895
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409 } |
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3948
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410 else |
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411 error ("dbtype: if you specify lines it must be like `start:end`"); |
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3895
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412 } |
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413 } |
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414 break; |
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3946
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415 |
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416 case 2: // (dbtype func start:end) |
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3948
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417 dbg_fcn = get_user_function (argv[1]); |
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3895
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418 |
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419 if (dbg_fcn) |
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420 { |
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3948
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421 std::string arg = argv[2]; |
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3895
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422 |
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3948
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423 size_t ind = arg.find (':'); |
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3895
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424 |
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3948
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425 if (ind != NPOS) |
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3895
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426 { |
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3948
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427 std::string start_str = arg.substr (0, ind); |
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428 std::string end_str = arg.substr (ind + 1); |
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3895
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429 |
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3948
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430 int start = atoi (start_str.c_str ()); |
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431 int end = atoi (end_str.c_str ()); |
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432 |
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433 if (start < end) |
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434 do_dbtype (octave_stdout, |
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4748
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435 dbg_fcn->name (), start, end); |
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3948
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436 else |
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437 error ("dbtype: the start line must be less than the end line\n"); |
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438 } |
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439 else |
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440 error ("dbtype: if you specify lines it must be like `start:end`"); |
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3895
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441 } |
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3946
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442 break; |
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3895
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443 |
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444 default: |
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3948
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445 error ("dbtype: expecting zero, one, or two arguments\n"); |
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3895
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446 } |
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447 } |
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3805
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448 |
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449 return retval; |
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450 } |
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451 |
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452 /* |
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453 ;;; Local Variables: *** |
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454 ;;; mode: C++ *** |
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455 ;;; End: *** |
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456 */ |
