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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 { |
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87 return (instance_ok ()) |
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88 ? instance->do_register_type (t_name, c_name) : -1; |
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89 } |
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90 |
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91 bool |
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92 octave_value_typeinfo::register_unary_op (octave_value::unary_op op, |
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93 int t, unary_op_fcn f) |
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94 { |
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95 return (instance_ok ()) |
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96 ? instance->do_register_unary_op (op, t, f) : false; |
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97 } |
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98 |
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99 bool |
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100 octave_value_typeinfo::register_non_const_unary_op (octave_value::unary_op op, |
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101 int t, |
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102 non_const_unary_op_fcn f) |
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103 { |
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104 return (instance_ok ()) |
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105 ? instance->do_register_non_const_unary_op (op, t, f) : false; |
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106 } |
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107 |
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108 bool |
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109 octave_value_typeinfo::register_binary_op (octave_value::binary_op op, |
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110 int t1, int t2, |
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111 binary_op_fcn f) |
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112 { |
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113 return (instance_ok ()) |
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114 ? instance->do_register_binary_op (op, t1, t2, f) : false; |
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115 } |
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116 |
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117 bool |
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118 octave_value_typeinfo::register_assign_op (octave_value::assign_op op, |
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119 int t_lhs, int t_rhs, |
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120 assign_op_fcn f) |
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121 { |
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122 return (instance_ok ()) |
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123 ? instance->do_register_assign_op (op, t_lhs, t_rhs, f) : -1; |
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124 } |
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125 |
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126 bool |
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127 octave_value_typeinfo::register_assignany_op (octave_value::assign_op op, |
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128 int t_lhs, assign_op_fcn f) |
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129 { |
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130 return (instance_ok ()) |
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131 ? instance->do_register_assignany_op (op, t_lhs, f) : -1; |
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132 } |
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133 |
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134 bool |
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135 octave_value_typeinfo::register_pref_assign_conv (int t_lhs, int t_rhs, |
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136 int t_result) |
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137 { |
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138 return (instance_ok ()) |
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139 ? instance->do_register_pref_assign_conv (t_lhs, t_rhs, t_result) : false; |
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140 } |
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141 |
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142 bool |
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143 octave_value_typeinfo::register_widening_op (int t, int t_result, |
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144 type_conv_fcn f) |
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145 { |
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146 return (instance_ok ()) |
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147 ? instance->do_register_widening_op (t, t_result, f) : false; |
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148 } |
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149 |
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150 int |
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151 octave_value_typeinfo::do_register_type (const std::string& t_name, |
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152 const std::string& c_name) |
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153 { |
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154 int i = 0; |
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155 |
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156 for (i = 0; i < num_types; i++) |
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157 if (t_name == types (i)) |
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158 return i; |
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159 |
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160 int len = types.length (); |
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161 |
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162 if (i == len) |
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163 { |
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164 len *= 2; |
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165 |
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166 types.resize (len, std::string ()); |
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167 |
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168 unary_ops.resize (static_cast<int> (octave_value::num_unary_ops), |
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169 len, static_cast<unary_op_fcn> (0)); |
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170 |
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171 non_const_unary_ops.resize |
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172 (static_cast<int> (octave_value::num_unary_ops), |
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173 len, static_cast<non_const_unary_op_fcn> (0)); |
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174 |
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175 binary_ops.resize (static_cast<int> (octave_value::num_binary_ops), |
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176 len, len, static_cast<binary_op_fcn> (0)); |
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177 |
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178 assign_ops.resize (static_cast<int> (octave_value::num_assign_ops), |
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179 len, len, static_cast<assign_op_fcn> (0)); |
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180 |
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181 assignany_ops.resize (static_cast<int> (octave_value::num_assign_ops), |
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182 len, static_cast<assign_op_fcn> (0)); |
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183 |
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184 pref_assign_conv.resize (len, len, -1); |
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185 |
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186 widening_ops.resize (len, len, static_cast<type_conv_fcn> (0)); |
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187 } |
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188 |
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189 types (i) = t_name; |
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190 |
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191 num_types++; |
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192 |
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193 return i; |
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194 } |
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195 |
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196 bool |
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197 octave_value_typeinfo::do_register_unary_op (octave_value::unary_op op, |
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198 int t, unary_op_fcn f) |
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199 { |
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200 if (lookup_unary_op (op, t)) |
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201 { |
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202 std::string op_name = octave_value::unary_op_as_string (op); |
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203 std::string type_name = types(t); |
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204 |
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205 warning ("duplicate unary operator `%s' for type `%s'", |
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206 op_name.c_str (), type_name.c_str ()); |
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207 } |
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208 |
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209 unary_ops.checkelem (static_cast<int> (op), t) = f; |
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210 |
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211 return false; |
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212 } |
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213 |
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214 bool |
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215 octave_value_typeinfo::do_register_non_const_unary_op |
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216 (octave_value::unary_op op, int t, non_const_unary_op_fcn f) |
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217 { |
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218 if (lookup_non_const_unary_op (op, t)) |
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219 { |
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220 std::string op_name = octave_value::unary_op_as_string (op); |
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221 std::string type_name = types(t); |
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222 |
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223 warning ("duplicate unary operator `%s' for type `%s'", |
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224 op_name.c_str (), type_name.c_str ()); |
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225 } |
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226 |
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227 non_const_unary_ops.checkelem (static_cast<int> (op), t) = f; |
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228 |
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229 return false; |
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230 } |
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231 |
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232 bool |
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233 octave_value_typeinfo::do_register_binary_op (octave_value::binary_op op, |
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234 int t1, int t2, |
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235 binary_op_fcn f) |
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236 { |
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237 if (lookup_binary_op (op, t1, t2)) |
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238 { |
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239 std::string op_name = octave_value::binary_op_as_string (op); |
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240 std::string t1_name = types(t1); |
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241 std::string t2_name = types(t2); |
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242 |
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243 warning ("duplicate binary operator `%s' for types `%s' and `%s'", |
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244 op_name.c_str (), t1_name.c_str (), t1_name.c_str ()); |
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245 } |
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246 |
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247 binary_ops.checkelem (static_cast<int> (op), t1, t2) = f; |
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248 |
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249 return false; |
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250 } |
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251 |
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252 bool |
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253 octave_value_typeinfo::do_register_assign_op (octave_value::assign_op op, |
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254 int t_lhs, int t_rhs, |
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255 assign_op_fcn f) |
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256 { |
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257 if (lookup_assign_op (op, t_lhs, t_rhs)) |
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258 { |
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259 std::string op_name = octave_value::assign_op_as_string (op); |
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260 std::string t_lhs_name = types(t_lhs); |
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261 std::string t_rhs_name = types(t_rhs); |
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262 |
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263 warning ("duplicate assignment operator `%s' for types `%s' and `%s'", |
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264 op_name.c_str (), t_lhs_name.c_str (), t_rhs_name.c_str ()); |
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265 } |
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266 |
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267 assign_ops.checkelem (static_cast<int> (op), t_lhs, t_rhs) = f; |
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268 |
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269 return false; |
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270 } |
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271 |
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272 bool |
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273 octave_value_typeinfo::do_register_assignany_op (octave_value::assign_op op, |
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274 int t_lhs, assign_op_fcn f) |
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275 { |
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276 if (lookup_assignany_op (op, t_lhs)) |
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277 { |
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278 std::string op_name = octave_value::assign_op_as_string (op); |
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279 std::string t_lhs_name = types(t_lhs); |
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280 |
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281 warning ("duplicate assignment operator `%s' for types `%s'", |
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282 op_name.c_str (), t_lhs_name.c_str ()); |
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283 } |
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284 |
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285 assignany_ops.checkelem (static_cast<int> (op), t_lhs) = f; |
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286 |
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287 return false; |
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288 } |
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289 |
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290 bool |
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291 octave_value_typeinfo::do_register_pref_assign_conv (int t_lhs, int t_rhs, |
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292 int t_result) |
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293 { |
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294 if (lookup_pref_assign_conv (t_lhs, t_rhs) >= 0) |
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295 { |
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296 std::string t_lhs_name = types(t_lhs); |
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297 std::string t_rhs_name = types(t_rhs); |
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298 |
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299 warning ("overriding assignment conversion for types `%s' and `%s'", |
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300 t_lhs_name.c_str (), t_rhs_name.c_str ()); |
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301 } |
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302 |
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303 pref_assign_conv.checkelem (t_lhs, t_rhs) = t_result; |
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304 |
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305 return false; |
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306 } |
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307 |
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308 bool |
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309 octave_value_typeinfo::do_register_widening_op |
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310 (int t, int t_result, type_conv_fcn f) |
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311 { |
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312 if (lookup_widening_op (t, t_result)) |
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313 { |
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314 std::string t_name = types(t); |
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315 std::string t_result_name = types(t_result); |
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316 |
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317 warning ("overriding widening op for `%s' to `%s'", |
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318 t_name.c_str (), t_result_name.c_str ()); |
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319 } |
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320 |
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321 widening_ops.checkelem (t, t_result) = f; |
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322 |
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323 return false; |
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324 } |
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325 |
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326 unary_op_fcn |
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327 octave_value_typeinfo::do_lookup_unary_op (octave_value::unary_op op, int t) |
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328 { |
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329 return unary_ops.checkelem (static_cast<int> (op), t); |
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330 } |
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331 |
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332 non_const_unary_op_fcn |
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333 octave_value_typeinfo::do_lookup_non_const_unary_op |
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334 (octave_value::unary_op op, int t) |
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335 { |
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336 return non_const_unary_ops.checkelem (static_cast<int> (op), t); |
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337 } |
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338 |
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339 binary_op_fcn |
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340 octave_value_typeinfo::do_lookup_binary_op (octave_value::binary_op op, |
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341 int t1, int t2) |
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342 { |
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343 return binary_ops.checkelem (static_cast<int> (op), t1, t2); |
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344 } |
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345 |
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346 assign_op_fcn |
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347 octave_value_typeinfo::do_lookup_assign_op (octave_value::assign_op op, |
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348 int t_lhs, int t_rhs) |
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349 { |
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350 return assign_ops.checkelem (static_cast<int> (op), t_lhs, t_rhs); |
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351 } |
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352 |
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353 assign_op_fcn |
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354 octave_value_typeinfo::do_lookup_assignany_op (octave_value::assign_op op, |
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355 int t_lhs) |
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356 { |
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357 return assignany_ops.checkelem (static_cast<int> (op), t_lhs); |
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358 } |
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359 |
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360 int |
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361 octave_value_typeinfo::do_lookup_pref_assign_conv (int t_lhs, int t_rhs) |
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362 { |
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363 return pref_assign_conv.checkelem (t_lhs, t_rhs); |
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364 } |
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365 |
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366 type_conv_fcn |
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367 octave_value_typeinfo::do_lookup_widening_op (int t, int t_result) |
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368 { |
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369 return widening_ops.checkelem (t, t_result); |
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370 } |
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371 |
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372 string_vector |
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373 octave_value_typeinfo::do_installed_type_names (void) |
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374 { |
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375 string_vector retval (num_types); |
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376 |
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377 for (int i = 0;i < num_types; i++) |
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378 retval (i) = types (i); |
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379 |
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380 return retval; |
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381 } |
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382 |
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2457
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383 DEFUN (typeinfo, args, , |
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3445
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384 "-*- texinfo -*-\n\ |
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385 @deftypefn {Built-in Function} {} typeinfo (@var{expr})\n\ |
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386 \n\ |
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3445
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387 Return the type of the expression @var{expr}, as a string. If\n\ |
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388 @var{EXPR} is omitted, return an array of strings containing all the\n\ |
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389 currently installed data types.\n\ |
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390 @end deftypefn") |
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391 { |
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392 octave_value retval; |
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393 |
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394 int nargin = args.length (); |
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395 |
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396 if (nargin == 0) |
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397 retval = octave_value_typeinfo::installed_type_names (); |
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2822
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398 else if (nargin == 1) |
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399 retval = args(0).type_name (); |
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400 else |
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401 print_usage ("typeinfo"); |
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402 |
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403 return retval; |
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404 } |
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405 |
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4612
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406 DEFUN (class, args, , |
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407 "-*- texinfo -*-\n\ |
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408 @deftypefn {Built-in Function} {} class (@var{expr})\n\ |
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409 \n\ |
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410 Return the class of the expression @var{expr}, as a string.\n\ |
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411 @end deftypefn") |
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412 { |
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413 octave_value retval; |
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414 |
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415 int nargin = args.length (); |
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416 |
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417 if (nargin == 1) |
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418 retval = args(0).class_name (); |
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419 else |
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420 print_usage ("class"); |
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421 |
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422 return retval; |
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423 } |
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424 |
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2376
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425 /* |
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426 ;;; Local Variables: *** |
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427 ;;; mode: C++ *** |
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428 ;;; End: *** |
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429 */ |
