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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include "ov-typeinfo.h" |
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32 |
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33 #include "defun.h" |
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34 #include "error.h" |
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35 #include "oct-obj.h" |
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36 |
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37 const int |
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38 octave_value_typeinfo::init_tab_sz (16); |
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39 |
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40 octave_value_typeinfo * |
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41 octave_value_typeinfo::instance (0); |
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42 |
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43 #include <Array.h> |
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44 #include <Array2.h> |
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45 #include <Array3.h> |
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46 |
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47 #include <Array.cc> |
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48 |
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49 INSTANTIATE_ARRAY (unary_op_fcn); |
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50 template class Array2<unary_op_fcn>; |
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51 |
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52 INSTANTIATE_ARRAY (non_const_unary_op_fcn); |
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53 template class Array2<non_const_unary_op_fcn>; |
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54 |
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55 INSTANTIATE_ARRAY (binary_op_fcn); |
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56 template class Array2<binary_op_fcn>; |
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57 template class Array3<binary_op_fcn>; |
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58 |
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59 INSTANTIATE_ARRAY (assign_op_fcn); |
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60 template class Array2<assign_op_fcn>; |
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61 template class Array3<assign_op_fcn>; |
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62 |
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63 INSTANTIATE_ARRAY (type_conv_fcn); |
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64 template class Array2<type_conv_fcn>; |
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65 |
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66 bool |
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67 octave_value_typeinfo::instance_ok (void) |
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68 { |
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69 bool retval = true; |
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70 if (! instance) |
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71 instance = new octave_value_typeinfo (); |
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72 |
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73 if (! instance) |
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74 { |
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75 ::error ("unable to create value type info object!"); |
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76 |
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77 retval = false; |
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78 } |
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79 |
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80 return retval; |
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81 } |
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82 |
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83 int |
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84 octave_value_typeinfo::register_type (const std::string& t_name, |
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85 const std::string& c_name, |
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86 const octave_value& val) |
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87 { |
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88 return (instance_ok ()) |
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89 ? instance->do_register_type (t_name, c_name, val) : -1; |
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90 } |
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91 |
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92 bool |
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93 octave_value_typeinfo::register_unary_op (octave_value::unary_op op, |
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94 int t, unary_op_fcn f) |
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95 { |
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96 return (instance_ok ()) |
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97 ? instance->do_register_unary_op (op, t, f) : false; |
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98 } |
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99 |
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100 bool |
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101 octave_value_typeinfo::register_non_const_unary_op (octave_value::unary_op op, |
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102 int t, |
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103 non_const_unary_op_fcn f) |
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104 { |
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105 return (instance_ok ()) |
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106 ? instance->do_register_non_const_unary_op (op, t, f) : false; |
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107 } |
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108 |
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109 bool |
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110 octave_value_typeinfo::register_binary_op (octave_value::binary_op op, |
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111 int t1, int t2, |
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112 binary_op_fcn f) |
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113 { |
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114 return (instance_ok ()) |
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115 ? instance->do_register_binary_op (op, t1, t2, f) : false; |
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116 } |
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117 |
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118 bool |
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119 octave_value_typeinfo::register_assign_op (octave_value::assign_op op, |
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120 int t_lhs, int t_rhs, |
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121 assign_op_fcn f) |
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122 { |
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123 return (instance_ok ()) |
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124 ? instance->do_register_assign_op (op, t_lhs, t_rhs, f) : -1; |
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125 } |
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126 |
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127 bool |
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128 octave_value_typeinfo::register_assignany_op (octave_value::assign_op op, |
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129 int t_lhs, assign_op_fcn f) |
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130 { |
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131 return (instance_ok ()) |
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132 ? instance->do_register_assignany_op (op, t_lhs, f) : -1; |
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133 } |
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134 |
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135 bool |
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136 octave_value_typeinfo::register_pref_assign_conv (int t_lhs, int t_rhs, |
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137 int t_result) |
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138 { |
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139 return (instance_ok ()) |
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140 ? instance->do_register_pref_assign_conv (t_lhs, t_rhs, t_result) : false; |
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141 } |
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142 |
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143 bool |
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144 octave_value_typeinfo::register_widening_op (int t, int t_result, |
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145 type_conv_fcn f) |
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146 { |
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147 return (instance_ok ()) |
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148 ? instance->do_register_widening_op (t, t_result, f) : false; |
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149 } |
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150 |
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151 // XXX FIXME XXX -- we should also store all class names and provide a |
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152 // way to list them (calling class with nargin == 0?). |
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153 |
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154 int |
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155 octave_value_typeinfo::do_register_type (const std::string& t_name, |
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156 const std::string& c_name, |
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157 const octave_value& val) |
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158 { |
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159 int i = 0; |
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160 |
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161 for (i = 0; i < num_types; i++) |
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162 if (t_name == types (i)) |
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163 return i; |
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164 |
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165 int len = types.length (); |
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166 |
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167 if (i == len) |
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168 { |
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169 len *= 2; |
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170 |
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171 types.resize (len, std::string ()); |
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172 |
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173 vals.resize (len, octave_value ()); |
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174 |
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175 unary_ops.resize (static_cast<int> (octave_value::num_unary_ops), |
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176 len, static_cast<unary_op_fcn> (0)); |
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177 |
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178 non_const_unary_ops.resize |
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179 (static_cast<int> (octave_value::num_unary_ops), |
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180 len, static_cast<non_const_unary_op_fcn> (0)); |
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181 |
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182 binary_ops.resize (static_cast<int> (octave_value::num_binary_ops), |
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183 len, len, static_cast<binary_op_fcn> (0)); |
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184 |
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185 assign_ops.resize (static_cast<int> (octave_value::num_assign_ops), |
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186 len, len, static_cast<assign_op_fcn> (0)); |
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187 |
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188 assignany_ops.resize (static_cast<int> (octave_value::num_assign_ops), |
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189 len, static_cast<assign_op_fcn> (0)); |
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190 |
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191 pref_assign_conv.resize (len, len, -1); |
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192 |
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193 widening_ops.resize (len, len, static_cast<type_conv_fcn> (0)); |
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194 } |
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195 |
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196 types (i) = t_name; |
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197 |
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198 vals (i) = val; |
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199 |
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200 num_types++; |
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201 |
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202 return i; |
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203 } |
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204 |
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205 bool |
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206 octave_value_typeinfo::do_register_unary_op (octave_value::unary_op op, |
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207 int t, unary_op_fcn f) |
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208 { |
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209 if (lookup_unary_op (op, t)) |
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210 { |
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211 std::string op_name = octave_value::unary_op_as_string (op); |
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212 std::string type_name = types(t); |
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213 |
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214 warning ("duplicate unary operator `%s' for type `%s'", |
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215 op_name.c_str (), type_name.c_str ()); |
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216 } |
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217 |
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218 unary_ops.checkelem (static_cast<int> (op), t) = f; |
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219 |
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220 return false; |
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221 } |
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222 |
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223 bool |
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224 octave_value_typeinfo::do_register_non_const_unary_op |
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225 (octave_value::unary_op op, int t, non_const_unary_op_fcn f) |
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226 { |
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227 if (lookup_non_const_unary_op (op, t)) |
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228 { |
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229 std::string op_name = octave_value::unary_op_as_string (op); |
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230 std::string type_name = types(t); |
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231 |
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232 warning ("duplicate unary operator `%s' for type `%s'", |
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233 op_name.c_str (), type_name.c_str ()); |
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234 } |
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235 |
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236 non_const_unary_ops.checkelem (static_cast<int> (op), t) = f; |
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237 |
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238 return false; |
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239 } |
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240 |
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241 bool |
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242 octave_value_typeinfo::do_register_binary_op (octave_value::binary_op op, |
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243 int t1, int t2, |
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244 binary_op_fcn f) |
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245 { |
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246 if (lookup_binary_op (op, t1, t2)) |
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247 { |
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248 std::string op_name = octave_value::binary_op_as_string (op); |
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249 std::string t1_name = types(t1); |
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250 std::string t2_name = types(t2); |
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251 |
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252 warning ("duplicate binary operator `%s' for types `%s' and `%s'", |
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253 op_name.c_str (), t1_name.c_str (), t1_name.c_str ()); |
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254 } |
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255 |
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256 binary_ops.checkelem (static_cast<int> (op), t1, t2) = f; |
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257 |
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258 return false; |
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259 } |
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260 |
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261 bool |
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262 octave_value_typeinfo::do_register_assign_op (octave_value::assign_op op, |
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263 int t_lhs, int t_rhs, |
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264 assign_op_fcn f) |
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265 { |
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266 if (lookup_assign_op (op, t_lhs, t_rhs)) |
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267 { |
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268 std::string op_name = octave_value::assign_op_as_string (op); |
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269 std::string t_lhs_name = types(t_lhs); |
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270 std::string t_rhs_name = types(t_rhs); |
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271 |
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272 warning ("duplicate assignment operator `%s' for types `%s' and `%s'", |
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273 op_name.c_str (), t_lhs_name.c_str (), t_rhs_name.c_str ()); |
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274 } |
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275 |
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276 assign_ops.checkelem (static_cast<int> (op), t_lhs, t_rhs) = f; |
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277 |
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278 return false; |
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279 } |
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280 |
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281 bool |
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282 octave_value_typeinfo::do_register_assignany_op (octave_value::assign_op op, |
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283 int t_lhs, assign_op_fcn f) |
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284 { |
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285 if (lookup_assignany_op (op, t_lhs)) |
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286 { |
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287 std::string op_name = octave_value::assign_op_as_string (op); |
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288 std::string t_lhs_name = types(t_lhs); |
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289 |
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290 warning ("duplicate assignment operator `%s' for types `%s'", |
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291 op_name.c_str (), t_lhs_name.c_str ()); |
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292 } |
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293 |
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294 assignany_ops.checkelem (static_cast<int> (op), t_lhs) = f; |
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295 |
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296 return false; |
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297 } |
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298 |
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299 bool |
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300 octave_value_typeinfo::do_register_pref_assign_conv (int t_lhs, int t_rhs, |
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301 int t_result) |
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302 { |
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303 if (lookup_pref_assign_conv (t_lhs, t_rhs) >= 0) |
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304 { |
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305 std::string t_lhs_name = types(t_lhs); |
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306 std::string t_rhs_name = types(t_rhs); |
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307 |
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308 warning ("overriding assignment conversion for types `%s' and `%s'", |
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309 t_lhs_name.c_str (), t_rhs_name.c_str ()); |
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310 } |
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311 |
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312 pref_assign_conv.checkelem (t_lhs, t_rhs) = t_result; |
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313 |
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314 return false; |
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315 } |
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316 |
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317 bool |
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318 octave_value_typeinfo::do_register_widening_op |
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319 (int t, int t_result, type_conv_fcn f) |
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320 { |
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321 if (lookup_widening_op (t, t_result)) |
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322 { |
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323 std::string t_name = types(t); |
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324 std::string t_result_name = types(t_result); |
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325 |
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326 warning ("overriding widening op for `%s' to `%s'", |
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327 t_name.c_str (), t_result_name.c_str ()); |
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328 } |
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329 |
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330 widening_ops.checkelem (t, t_result) = f; |
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331 |
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332 return false; |
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333 } |
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334 |
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335 octave_value |
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336 octave_value_typeinfo::do_lookup_type (const std::string& nm) |
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337 { |
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338 octave_value retval; |
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339 |
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340 for (int i = 0; i < num_types; i++) |
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341 { |
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342 if (nm == types(i)) |
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343 { |
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344 retval = vals(i); |
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345 retval.make_unique (); |
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346 break; |
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347 } |
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348 } |
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349 |
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350 return retval; |
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351 } |
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352 |
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353 unary_op_fcn |
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354 octave_value_typeinfo::do_lookup_unary_op (octave_value::unary_op op, int t) |
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355 { |
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356 return unary_ops.checkelem (static_cast<int> (op), t); |
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357 } |
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358 |
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359 non_const_unary_op_fcn |
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360 octave_value_typeinfo::do_lookup_non_const_unary_op |
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361 (octave_value::unary_op op, int t) |
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362 { |
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363 return non_const_unary_ops.checkelem (static_cast<int> (op), t); |
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364 } |
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365 |
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366 binary_op_fcn |
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367 octave_value_typeinfo::do_lookup_binary_op (octave_value::binary_op op, |
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368 int t1, int t2) |
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369 { |
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2800
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370 return binary_ops.checkelem (static_cast<int> (op), t1, t2); |
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371 } |
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372 |
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373 assign_op_fcn |
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374 octave_value_typeinfo::do_lookup_assign_op (octave_value::assign_op op, |
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375 int t_lhs, int t_rhs) |
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376 { |
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377 return assign_ops.checkelem (static_cast<int> (op), t_lhs, t_rhs); |
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378 } |
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379 |
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3196
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380 assign_op_fcn |
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381 octave_value_typeinfo::do_lookup_assignany_op (octave_value::assign_op op, |
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382 int t_lhs) |
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383 { |
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384 return assignany_ops.checkelem (static_cast<int> (op), t_lhs); |
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385 } |
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386 |
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387 int |
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388 octave_value_typeinfo::do_lookup_pref_assign_conv (int t_lhs, int t_rhs) |
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389 { |
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390 return pref_assign_conv.checkelem (t_lhs, t_rhs); |
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391 } |
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392 |
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2427
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393 type_conv_fcn |
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394 octave_value_typeinfo::do_lookup_widening_op (int t, int t_result) |
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395 { |
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396 return widening_ops.checkelem (t, t_result); |
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397 } |
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398 |
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399 string_vector |
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400 octave_value_typeinfo::do_installed_type_names (void) |
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401 { |
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402 string_vector retval (num_types); |
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403 |
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404 for (int i = 0;i < num_types; i++) |
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405 retval (i) = types (i); |
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406 |
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407 return retval; |
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408 } |
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409 |
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2457
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410 DEFUN (typeinfo, args, , |
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3445
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411 "-*- texinfo -*-\n\ |
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412 @deftypefn {Built-in Function} {} typeinfo (@var{expr})\n\ |
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2822
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413 \n\ |
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3445
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414 Return the type of the expression @var{expr}, as a string. If\n\ |
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415 @var{EXPR} is omitted, return an array of strings containing all the\n\ |
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416 currently installed data types.\n\ |
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417 @end deftypefn") |
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2376
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418 { |
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419 octave_value retval; |
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420 |
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421 int nargin = args.length (); |
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422 |
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423 if (nargin == 0) |
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424 retval = octave_value_typeinfo::installed_type_names (); |
|
2822
|
425 else if (nargin == 1) |
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426 retval = args(0).type_name (); |
|
2376
|
427 else |
|
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428 print_usage ("typeinfo"); |
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429 |
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430 return retval; |
|
|
431 } |
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432 |
|
4612
|
433 DEFUN (class, args, , |
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434 "-*- texinfo -*-\n\ |
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435 @deftypefn {Built-in Function} {} class (@var{expr})\n\ |
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436 \n\ |
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437 Return the class of the expression @var{expr}, as a string.\n\ |
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|
438 @end deftypefn") |
|
|
439 { |
|
|
440 octave_value retval; |
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|
441 |
|
|
442 int nargin = args.length (); |
|
|
443 |
|
|
444 if (nargin == 1) |
|
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445 retval = args(0).class_name (); |
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|
446 else |
|
|
447 print_usage ("class"); |
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|
448 |
|
|
449 return retval; |
|
|
450 } |
|
|
451 |
|
2376
|
452 /* |
|
|
453 ;;; Local Variables: *** |
|
|
454 ;;; mode: C++ *** |
|
|
455 ;;; End: *** |
|
|
456 */ |
