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1 /* |
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2 |
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3 Copyright (C) 2007 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 3 of the License, or (at your |
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10 option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <iostream> |
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28 |
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29 #include "Array-util.h" |
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30 #include "byte-swap.h" |
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31 |
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32 #include "Cell.h" |
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33 #include "defun.h" |
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34 #include "error.h" |
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35 #include "gripes.h" |
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36 #include "load-path.h" |
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37 #include "ls-hdf5.h" |
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38 #include "ls-oct-ascii.h" |
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39 #include "ls-oct-binary.h" |
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40 #include "ls-utils.h" |
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41 #include "oct-lvalue.h" |
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42 #include "ov-class.h" |
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43 #include "ov-fcn.h" |
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44 #include "pager.h" |
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45 #include "parse.h" |
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46 #include "pr-output.h" |
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47 #include "toplev.h" |
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48 #include "unwind-prot.h" |
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49 #include "variables.h" |
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50 |
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51 DEFINE_OCTAVE_ALLOCATOR(octave_class); |
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52 |
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53 int octave_class::t_id (-1); |
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54 |
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55 const std::string octave_class::t_name ("class"); |
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56 |
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57 void |
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58 octave_class::register_type (void) |
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59 { |
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60 t_id = octave_value_typeinfo::register_type |
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61 (octave_class::t_name, "<unknown>", octave_value (new octave_class ())); |
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62 } |
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63 |
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64 Cell |
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65 octave_class::dotref (const octave_value_list& idx) |
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66 { |
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67 Cell retval; |
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68 |
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69 assert (idx.length () == 1); |
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70 |
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71 std::string nm = idx(0).string_value (); |
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72 |
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73 Octave_map::const_iterator p = map.seek (nm); |
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74 |
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75 if (p != map.end ()) |
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76 retval = map.contents (p); |
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77 else |
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78 error ("class has no member `%s'", nm.c_str ()); |
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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 static void |
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84 gripe_invalid_index (void) |
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85 { |
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86 error ("invalid index for class"); |
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87 } |
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88 |
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89 static void |
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90 gripe_invalid_index_for_assignment (void) |
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91 { |
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92 error ("invalid index for class assignment"); |
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93 } |
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94 |
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95 static void |
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96 gripe_invalid_index_type (const std::string& nm, char t) |
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97 { |
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98 error ("%s cannot be indexed with %c", nm.c_str (), t); |
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99 } |
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100 |
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101 static void |
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102 gripe_failed_assignment (void) |
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103 { |
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104 error ("assignment to class element failed"); |
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105 } |
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106 |
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107 static inline octave_value_list |
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108 sanitize (const octave_value_list& ovl) |
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109 { |
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110 octave_value_list retval = ovl; |
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111 |
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112 for (octave_idx_type i = 0; i < ovl.length (); i++) |
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113 { |
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114 if (retval(i).is_magic_colon ()) |
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115 retval(i) = ":"; |
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116 } |
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117 |
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118 return retval; |
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119 } |
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120 |
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121 static inline octave_value |
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122 make_idx_args (const std::string& type, |
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123 const std::list<octave_value_list>& idx, |
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124 const std::string& who) |
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125 { |
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126 octave_value retval; |
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127 |
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128 size_t len = type.length (); |
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129 |
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130 if (len == idx.size ()) |
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131 { |
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132 Cell type_field (len, 1); |
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133 Cell subs_field (len, 1); |
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134 |
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135 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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136 |
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137 for (size_t i = 0; i < len; i++) |
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138 { |
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139 char t = type[i]; |
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140 |
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141 switch (t) |
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142 { |
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143 case '(': |
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144 type_field(i) = "()"; |
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145 subs_field(i) = Cell (sanitize (*p++)); |
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146 break; |
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147 |
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148 case '{': |
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149 type_field(i) = "{}"; |
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150 subs_field(i) = Cell (sanitize (*p++)); |
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151 break; |
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152 |
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153 case '.': |
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154 { |
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155 type_field(i) = "."; |
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156 |
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157 octave_value_list vlist = *p++; |
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158 |
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159 if (vlist.length () == 1) |
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160 { |
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161 octave_value val = vlist(0); |
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162 |
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163 if (val.is_string ()) |
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164 subs_field(i) = val; |
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165 else |
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166 { |
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167 error ("expecting character string argument for `.' index"); |
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168 return retval; |
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169 } |
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170 } |
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171 else |
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172 { |
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173 error ("expecting single argument for `.' index"); |
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174 return retval; |
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175 } |
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176 } |
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177 break; |
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178 |
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179 default: |
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180 panic_impossible (); |
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181 break; |
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182 } |
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183 } |
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184 |
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185 Octave_map m; |
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186 |
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187 m.assign ("type", type_field); |
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188 m.assign ("subs", subs_field); |
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189 |
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190 retval = m; |
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191 } |
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192 else |
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193 error ("invalid index for %s", who.c_str ()); |
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194 |
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195 return retval; |
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196 } |
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197 |
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198 octave_value_list |
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199 octave_class::subsref (const std::string& type, |
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200 const std::list<octave_value_list>& idx, |
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201 int nargout) |
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202 { |
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203 octave_value_list retval; |
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204 |
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205 if (in_class_method ()) |
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206 { |
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207 // FIXME -- this block of code is the same as the body of |
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208 // octave_struct::subsref. Maybe it could be shared instead of |
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209 // duplicated. |
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210 |
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211 int skip = 1; |
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212 |
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213 switch (type[0]) |
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214 { |
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215 case '(': |
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216 { |
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217 if (type.length () > 1 && type[1] == '.') |
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218 { |
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219 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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220 octave_value_list key_idx = *++p; |
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221 |
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222 Cell tmp = dotref (key_idx); |
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223 |
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224 if (! error_state) |
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225 { |
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226 Cell t = tmp.index (idx.front ()); |
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227 |
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228 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
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229 |
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230 // We handled two index elements, so tell |
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231 // next_subsref to skip both of them. |
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232 |
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233 skip++; |
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234 } |
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235 } |
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236 else |
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237 retval(0) = map.index (idx.front ()); |
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238 } |
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239 break; |
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240 |
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241 case '.': |
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242 { |
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243 if (map.numel() > 0) |
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244 { |
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245 Cell t = dotref (idx.front ()); |
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246 |
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247 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
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248 } |
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249 } |
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250 break; |
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251 |
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252 case '{': |
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253 gripe_invalid_index_type (type_name (), type[0]); |
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254 break; |
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255 |
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256 default: |
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257 panic_impossible (); |
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258 } |
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259 |
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260 // FIXME -- perhaps there should be an |
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261 // octave_value_list::next_subsref member function? See also |
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262 // octave_user_function::subsref. |
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263 |
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264 if (idx.size () > 1) |
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265 retval = retval(0).next_subsref (nargout, type, idx, skip); |
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266 } |
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267 else |
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268 { |
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269 octave_value meth = symbol_table::find_method ("subsref", class_name ()); |
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270 |
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271 if (meth.is_defined ()) |
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272 { |
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273 octave_value_list args; |
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274 |
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275 args(1) = make_idx_args (type, idx, "subsref"); |
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276 |
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277 if (error_state) |
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278 return octave_value_list (); |
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279 |
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280 count++; |
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281 args(0) = octave_value (this); |
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282 |
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283 return feval (meth.function_value (), args, nargout); |
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284 } |
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285 else |
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286 { |
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287 if (type.length () == 1 && type[0] == '(') |
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288 retval(0) = octave_value (map.index (idx.front ()), class_name ()); |
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289 else |
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290 gripe_invalid_index (); |
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291 } |
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292 } |
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293 |
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294 return retval; |
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295 } |
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296 |
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297 octave_value |
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298 octave_class::numeric_conv (const Cell& val, const std::string& type) |
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299 { |
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300 octave_value retval; |
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301 |
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302 if (val.length () == 1) |
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303 { |
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304 retval = val(0); |
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305 |
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306 if (type.length () > 0 && type[0] == '.' && ! retval.is_map ()) |
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307 retval = Octave_map (); |
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308 } |
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309 else |
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310 gripe_invalid_index_for_assignment (); |
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311 |
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312 return retval; |
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313 } |
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314 |
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315 octave_value |
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316 octave_class::subsasgn (const std::string& type, |
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317 const std::list<octave_value_list>& idx, |
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318 const octave_value& rhs) |
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319 { |
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320 octave_value retval; |
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321 |
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322 if (in_class_method ()) |
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323 { |
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324 // FIXME -- this block of code is the same as the body of |
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325 // octave_struct::subsasgn. Maybe it could be shared instead of |
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326 // duplicated. |
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327 |
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328 int n = type.length (); |
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329 |
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330 octave_value t_rhs = rhs; |
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331 |
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332 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) |
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333 { |
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334 switch (type[0]) |
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335 { |
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336 case '(': |
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337 { |
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338 if (type.length () > 1 && type[1] == '.') |
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339 { |
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340 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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341 octave_value_list t_idx = *p; |
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342 |
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343 octave_value_list key_idx = *++p; |
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344 |
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345 assert (key_idx.length () == 1); |
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346 |
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347 std::string key = key_idx(0).string_value (); |
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348 |
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349 octave_value u; |
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350 |
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351 if (! map.contains (key)) |
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352 u = octave_value::empty_conv (type.substr (2), rhs); |
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353 else |
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354 { |
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355 Cell map_val = map.contents (key); |
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356 |
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357 Cell map_elt = map_val.index (idx.front (), true); |
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358 |
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359 u = numeric_conv (map_elt, type.substr (2)); |
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360 } |
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361 |
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362 if (! error_state) |
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363 { |
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364 std::list<octave_value_list> next_idx (idx); |
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365 |
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366 // We handled two index elements, so subsasgn to |
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367 // needs to skip both of them. |
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368 |
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369 next_idx.erase (next_idx.begin ()); |
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370 next_idx.erase (next_idx.begin ()); |
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371 |
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372 u.make_unique (); |
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373 |
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374 t_rhs = u.subsasgn (type.substr (2), next_idx, rhs); |
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375 } |
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376 } |
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377 else |
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378 gripe_invalid_index_for_assignment (); |
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379 } |
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380 break; |
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381 |
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382 case '.': |
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383 { |
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384 octave_value_list key_idx = idx.front (); |
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385 |
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386 assert (key_idx.length () == 1); |
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387 |
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388 std::string key = key_idx(0).string_value (); |
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389 |
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390 octave_value u; |
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391 |
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392 if (! map.contains (key)) |
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393 u = octave_value::empty_conv (type.substr (1), rhs); |
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394 else |
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395 { |
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396 Cell map_val = map.contents (key); |
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397 |
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398 u = numeric_conv (map_val, type.substr (1)); |
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399 } |
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400 |
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401 if (! error_state) |
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402 { |
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403 std::list<octave_value_list> next_idx (idx); |
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404 |
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405 next_idx.erase (next_idx.begin ()); |
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406 |
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407 u.make_unique (); |
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408 |
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409 t_rhs = u.subsasgn (type.substr (1), next_idx, rhs); |
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410 } |
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411 } |
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412 break; |
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413 |
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414 case '{': |
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415 gripe_invalid_index_type (type_name (), type[0]); |
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416 break; |
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417 |
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418 default: |
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419 panic_impossible (); |
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420 } |
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421 } |
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422 |
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423 if (! error_state) |
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424 { |
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425 switch (type[0]) |
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426 { |
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427 case '(': |
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428 { |
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429 if (n > 1 && type[1] == '.') |
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430 { |
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431 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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432 octave_value_list key_idx = *++p; |
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433 |
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434 assert (key_idx.length () == 1); |
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435 |
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436 std::string key = key_idx(0).string_value (); |
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437 |
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438 if (! error_state) |
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439 { |
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440 map.assign (idx.front (), key, t_rhs); |
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441 |
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442 if (! error_state) |
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443 { |
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444 count++; |
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445 retval = octave_value (this); |
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446 } |
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447 else |
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448 gripe_failed_assignment (); |
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449 } |
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450 else |
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451 gripe_failed_assignment (); |
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452 } |
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453 else |
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454 { |
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455 if (t_rhs.is_map()) |
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456 { |
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457 Octave_map rhs_map = t_rhs.map_value (); |
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458 |
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459 if (! error_state) |
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460 { |
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461 map.assign (idx.front (), rhs_map); |
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462 |
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463 if (! error_state) |
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464 { |
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465 count++; |
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466 retval = octave_value (this); |
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467 } |
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468 else |
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469 gripe_failed_assignment (); |
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470 } |
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471 else |
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472 error ("invalid class assignment"); |
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473 } |
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474 else |
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475 { |
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476 if (t_rhs.is_empty()) |
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477 { |
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478 map.maybe_delete_elements (idx.front()); |
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479 |
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480 if (! error_state) |
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481 { |
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482 count++; |
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483 retval = octave_value (this); |
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484 } |
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485 else |
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486 gripe_failed_assignment (); |
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487 } |
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488 else |
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489 error ("invalid class assignment"); |
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490 } |
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491 } |
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492 } |
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493 break; |
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494 |
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495 case '.': |
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496 { |
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497 octave_value_list key_idx = idx.front (); |
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498 |
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499 assert (key_idx.length () == 1); |
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500 |
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501 std::string key = key_idx(0).string_value (); |
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502 |
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503 map.assign (key, t_rhs); |
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504 |
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505 if (! error_state) |
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506 { |
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507 count++; |
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508 retval = octave_value (this); |
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509 } |
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510 else |
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511 gripe_failed_assignment (); |
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512 } |
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513 break; |
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514 |
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515 case '{': |
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516 gripe_invalid_index_type (type_name (), type[0]); |
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517 break; |
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518 |
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519 default: |
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520 panic_impossible (); |
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521 } |
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522 } |
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523 else |
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524 gripe_failed_assignment (); |
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525 } |
|
|
526 else |
|
|
527 { |
|
|
528 octave_value meth = symbol_table::find_method ("subsasgn", class_name ()); |
|
|
529 |
|
|
530 if (meth.is_defined ()) |
|
|
531 { |
|
|
532 octave_value_list args; |
|
|
533 |
|
|
534 args(2) = rhs; |
|
|
535 |
|
|
536 args(1) = make_idx_args (type, idx, "subsasgn"); |
|
|
537 |
|
|
538 if (error_state) |
|
|
539 return octave_value_list (); |
|
|
540 |
|
|
541 count++; |
|
|
542 args(0) = octave_value (this); |
|
|
543 |
|
|
544 octave_value_list tmp = feval (meth.function_value (), args); |
|
|
545 |
|
|
546 // FIXME -- should the subsasgn method be able to return |
|
|
547 // more than one value? |
|
|
548 |
|
|
549 if (tmp.length () > 1) |
|
|
550 error ("expecting single return value from @%s/subsasgn", |
|
|
551 class_name().c_str ()); |
|
|
552 else |
|
|
553 retval = tmp(0); |
|
|
554 |
|
|
555 } |
|
|
556 else |
|
|
557 error ("no subsasgn method defined for class %s", |
|
|
558 class_name().c_str ()); |
|
|
559 } |
|
|
560 |
|
|
561 return retval; |
|
|
562 } |
|
|
563 |
|
|
564 size_t |
|
|
565 octave_class::byte_size (void) const |
|
|
566 { |
|
|
567 // Neglect the size of the fieldnames. |
|
|
568 |
|
|
569 size_t retval = 0; |
|
|
570 |
|
|
571 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) |
|
|
572 { |
|
|
573 std::string key = map.key (p); |
|
|
574 |
|
|
575 octave_value val = octave_value (map.contents (p)); |
|
|
576 |
|
|
577 retval += val.byte_size (); |
|
|
578 } |
|
|
579 |
|
|
580 return retval; |
|
|
581 } |
|
|
582 |
|
|
583 Octave_map |
|
|
584 octave_class::map_value (void) const |
|
|
585 { |
|
|
586 Octave_map retval; |
|
|
587 gripe_wrong_type_arg ("octave_class::map_value()", type_name ()); |
|
|
588 return retval; |
|
|
589 } |
|
|
590 |
|
|
591 string_vector |
|
|
592 octave_class::map_keys (void) const |
|
|
593 { |
|
|
594 string_vector retval; |
|
|
595 gripe_wrong_type_arg ("octave_class::map_keys()", type_name ()); |
|
|
596 return retval; |
|
|
597 } |
|
|
598 |
|
|
599 void |
|
|
600 octave_class::print (std::ostream& os, bool) const |
|
|
601 { |
|
|
602 print_raw (os); |
|
|
603 } |
|
|
604 |
|
|
605 void |
|
|
606 octave_class::print_raw (std::ostream& os, bool) const |
|
|
607 { |
|
|
608 unwind_protect::begin_frame ("octave_class_print"); |
|
|
609 |
|
|
610 unwind_protect_int (Vstruct_levels_to_print); |
|
|
611 |
|
|
612 indent (os); |
|
|
613 os << " <class " << class_name () << ">"; |
|
|
614 newline (os); |
|
|
615 |
|
|
616 unwind_protect::run_frame ("octave_class_print"); |
|
|
617 } |
|
|
618 |
|
|
619 bool |
|
|
620 octave_class::print_name_tag (std::ostream& os, const std::string& name) const |
|
|
621 { |
|
|
622 bool retval = false; |
|
|
623 |
|
|
624 indent (os); |
|
|
625 os << name << " ="; |
|
|
626 newline (os); |
|
|
627 newline (os); |
|
|
628 |
|
|
629 return retval; |
|
|
630 } |
|
|
631 |
|
|
632 void |
|
|
633 octave_class::print_with_name (std::ostream&, const std::string& name, |
|
|
634 bool) const |
|
|
635 { |
|
|
636 if (! (evaluating_function_body && Vsilent_functions)) |
|
|
637 { |
|
|
638 octave_value fcn = symbol_table::find_method ("display", class_name ()); |
|
|
639 |
|
|
640 if (fcn.is_defined ()) |
|
|
641 { |
|
|
642 octave_value_list args; |
|
|
643 |
|
|
644 args(0) = octave_value (clone (), 1); |
|
|
645 |
|
|
646 string_vector arg_names (1); |
|
|
647 |
|
|
648 arg_names[0] = name; |
|
|
649 |
|
|
650 args.stash_name_tags (arg_names); |
|
|
651 |
|
|
652 feval (fcn.function_value (), args); |
|
|
653 } |
|
|
654 } |
|
|
655 } |
|
|
656 |
|
|
657 bool |
|
|
658 octave_class::save_ascii (std::ostream&, bool&) |
|
|
659 { |
|
|
660 gripe_wrong_type_arg ("octave_class::save_ascii()", type_name ()); |
|
|
661 return false; |
|
|
662 } |
|
|
663 |
|
|
664 bool |
|
|
665 octave_class::load_ascii (std::istream&) |
|
|
666 { |
|
|
667 gripe_wrong_type_arg ("octave_class::load_ascii()", type_name ()); |
|
|
668 return false; |
|
|
669 } |
|
|
670 |
|
|
671 bool |
|
|
672 octave_class::save_binary (std::ostream&, bool&) |
|
|
673 { |
|
|
674 gripe_wrong_type_arg ("octave_class::save_binary()", type_name ()); |
|
|
675 return false; |
|
|
676 } |
|
|
677 |
|
|
678 bool |
|
|
679 octave_class::load_binary (std::istream&, bool, |
|
|
680 oct_mach_info::float_format) |
|
|
681 { |
|
|
682 gripe_wrong_type_arg ("octave_class::load_binary()", type_name ()); |
|
|
683 return false; |
|
|
684 } |
|
|
685 |
|
|
686 #if defined (HAVE_HDF5) |
|
|
687 |
|
|
688 bool |
|
|
689 octave_class::save_hdf5 (hid_t, const char *, bool) |
|
|
690 { |
|
|
691 gripe_wrong_type_arg ("octave_class::save_binary()", type_name ()); |
|
|
692 |
|
|
693 return false; |
|
|
694 } |
|
|
695 |
|
|
696 bool |
|
|
697 octave_class::load_hdf5 (hid_t, const char *, bool) |
|
|
698 { |
|
|
699 gripe_wrong_type_arg ("octave_class::load_binary()", type_name ()); |
|
|
700 |
|
|
701 return false; |
|
|
702 } |
|
|
703 |
|
|
704 #endif |
|
|
705 |
|
|
706 #if 0 |
|
|
707 bool |
|
|
708 octave_class::save_ascii (std::ostream& os, bool& infnan_warned) |
|
|
709 { |
|
|
710 Octave_map m = map_value (); |
|
|
711 os << "# length: " << m.length () << "\n"; |
|
|
712 |
|
|
713 Octave_map::iterator i = m.begin (); |
|
|
714 while (i != m.end ()) |
|
|
715 { |
|
|
716 octave_value val = map.contents (i); |
|
|
717 |
|
|
718 bool b = save_ascii_data (os, val, m.key (i), infnan_warned, false, 0); |
|
|
719 |
|
|
720 if (! b) |
|
|
721 return os; |
|
|
722 |
|
|
723 i++; |
|
|
724 } |
|
|
725 |
|
|
726 return true; |
|
|
727 } |
|
|
728 |
|
|
729 bool |
|
|
730 octave_class::load_ascii (std::istream& is) |
|
|
731 { |
|
|
732 octave_idx_type len = 0; |
|
|
733 bool success = true; |
|
|
734 |
|
|
735 if (extract_keyword (is, "length", len) && len >= 0) |
|
|
736 { |
|
|
737 if (len > 0) |
|
|
738 { |
|
|
739 Octave_map m (map); |
|
|
740 |
|
|
741 for (octave_idx_type j = 0; j < len; j++) |
|
|
742 { |
|
|
743 octave_value t2; |
|
|
744 bool dummy; |
|
|
745 |
|
|
746 // recurse to read cell elements |
|
|
747 std::string nm |
|
|
748 = read_ascii_data (is, std::string (), dummy, t2, j); |
|
|
749 |
|
|
750 if (!is) |
|
|
751 break; |
|
|
752 |
|
|
753 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
|
754 |
|
|
755 if (error_state) |
|
|
756 { |
|
|
757 error ("load: internal error loading class elements"); |
|
|
758 return false; |
|
|
759 } |
|
|
760 |
|
|
761 m.assign (nm, tcell); |
|
|
762 } |
|
|
763 |
|
|
764 if (is) |
|
|
765 map = m; |
|
|
766 else |
|
|
767 { |
|
|
768 error ("load: failed to load class"); |
|
|
769 success = false; |
|
|
770 } |
|
|
771 } |
|
|
772 else if (len == 0 ) |
|
|
773 map = Octave_map (dim_vector (1, 1)); |
|
|
774 else |
|
|
775 panic_impossible (); |
|
|
776 } |
|
|
777 else { |
|
|
778 error ("load: failed to extract number of elements in class"); |
|
|
779 success = false; |
|
|
780 } |
|
|
781 |
|
|
782 return success; |
|
|
783 } |
|
|
784 |
|
|
785 bool |
|
|
786 octave_class::save_binary (std::ostream& os, bool& save_as_floats) |
|
|
787 { |
|
|
788 Octave_map m = map_value (); |
|
|
789 |
|
|
790 int32_t len = m.length(); |
|
|
791 os.write (reinterpret_cast<char *> (&len), 4); |
|
|
792 |
|
|
793 Octave_map::iterator i = m.begin (); |
|
|
794 while (i != m.end ()) |
|
|
795 { |
|
|
796 octave_value val = map.contents (i); |
|
|
797 |
|
|
798 bool b = save_binary_data (os, val, m.key (i), "", 0, save_as_floats); |
|
|
799 |
|
|
800 if (! b) |
|
|
801 return os; |
|
|
802 |
|
|
803 i++; |
|
|
804 } |
|
|
805 |
|
|
806 return true; |
|
|
807 } |
|
|
808 |
|
|
809 bool |
|
|
810 octave_class::load_binary (std::istream& is, bool swap, |
|
|
811 oct_mach_info::float_format fmt) |
|
|
812 { |
|
|
813 bool success = true; |
|
|
814 int32_t len; |
|
|
815 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
|
|
816 return false; |
|
|
817 if (swap) |
|
|
818 swap_bytes<4> (&len); |
|
|
819 |
|
|
820 if (len > 0) |
|
|
821 { |
|
|
822 Octave_map m (map); |
|
|
823 |
|
|
824 for (octave_idx_type j = 0; j < len; j++) |
|
|
825 { |
|
|
826 octave_value t2; |
|
|
827 bool dummy; |
|
|
828 std::string doc; |
|
|
829 |
|
|
830 // recurse to read cell elements |
|
|
831 std::string nm = read_binary_data (is, swap, fmt, std::string (), |
|
|
832 dummy, t2, doc); |
|
|
833 |
|
|
834 if (!is) |
|
|
835 break; |
|
|
836 |
|
|
837 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
|
838 |
|
|
839 if (error_state) |
|
|
840 { |
|
|
841 error ("load: internal error loading class elements"); |
|
|
842 return false; |
|
|
843 } |
|
|
844 |
|
|
845 m.assign (nm, tcell); |
|
|
846 } |
|
|
847 |
|
|
848 if (is) |
|
|
849 map = m; |
|
|
850 else |
|
|
851 { |
|
|
852 error ("load: failed to load class"); |
|
|
853 success = false; |
|
|
854 } |
|
|
855 } |
|
|
856 else if (len == 0 ) |
|
|
857 map = Octave_map (dim_vector (1, 1)); |
|
|
858 else |
|
|
859 panic_impossible (); |
|
|
860 |
|
|
861 return success; |
|
|
862 } |
|
|
863 |
|
|
864 #if defined (HAVE_HDF5) |
|
|
865 |
|
|
866 bool |
|
|
867 octave_class::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) |
|
|
868 { |
|
|
869 hid_t data_hid = -1; |
|
|
870 |
|
|
871 data_hid = H5Gcreate (loc_id, name, 0); |
|
|
872 if (data_hid < 0) return false; |
|
|
873 |
|
|
874 // recursively add each element of the class to this group |
|
|
875 Octave_map m = map_value (); |
|
|
876 Octave_map::iterator i = m.begin (); |
|
|
877 while (i != m.end ()) |
|
|
878 { |
|
|
879 octave_value val = map.contents (i); |
|
|
880 |
|
|
881 bool retval2 = add_hdf5_data (data_hid, val, m.key (i), "", false, |
|
|
882 save_as_floats); |
|
|
883 |
|
|
884 if (! retval2) |
|
|
885 break; |
|
|
886 |
|
|
887 i++; |
|
|
888 } |
|
|
889 |
|
|
890 H5Gclose (data_hid); |
|
|
891 |
|
|
892 return true; |
|
|
893 } |
|
|
894 |
|
|
895 bool |
|
|
896 octave_class::load_hdf5 (hid_t loc_id, const char *name, |
|
|
897 bool have_h5giterate_bug) |
|
|
898 { |
|
|
899 bool retval = false; |
|
|
900 |
|
|
901 hdf5_callback_data dsub; |
|
|
902 |
|
|
903 herr_t retval2 = 0; |
|
|
904 Octave_map m (dim_vector (1, 1)); |
|
|
905 int current_item = 0; |
|
|
906 #ifdef HAVE_H5GGET_NUM_OBJS |
|
|
907 hsize_t num_obj = 0; |
|
|
908 hid_t group_id = H5Gopen (loc_id, name); |
|
|
909 H5Gget_num_objs (group_id, &num_obj); |
|
|
910 H5Gclose (group_id); |
|
|
911 |
|
|
912 while (current_item < static_cast<int> (num_obj) |
|
|
913 && (retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
914 hdf5_read_next_data, &dsub)) > 0) |
|
|
915 #else |
|
|
916 while ((retval2 = H5Giterate (loc_id, name, ¤t_item, |
|
|
917 hdf5_read_next_data, &dsub)) > 0) |
|
|
918 #endif |
|
|
919 { |
|
|
920 octave_value t2 = dsub.tc; |
|
|
921 |
|
|
922 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
|
|
923 |
|
|
924 if (error_state) |
|
|
925 { |
|
|
926 error ("load: internal error loading class elements"); |
|
|
927 return false; |
|
|
928 } |
|
|
929 |
|
|
930 m.assign (dsub.name, tcell); |
|
|
931 |
|
|
932 if (have_h5giterate_bug) |
|
|
933 current_item++; // H5Giterate returned the last index processed |
|
|
934 } |
|
|
935 |
|
|
936 if (retval2 >= 0) |
|
|
937 { |
|
|
938 map = m; |
|
|
939 retval = true; |
|
|
940 } |
|
|
941 |
|
|
942 return retval; |
|
|
943 } |
|
|
944 |
|
|
945 #endif |
|
|
946 |
|
|
947 #endif |
|
|
948 |
|
|
949 mxArray * |
|
|
950 octave_class::as_mxArray (void) const |
|
|
951 { |
|
|
952 gripe_wrong_type_arg ("octave_class::as_mxArray ()", type_name ()); |
|
|
953 |
|
|
954 return 0; |
|
|
955 } |
|
|
956 |
|
|
957 bool |
|
|
958 octave_class::in_class_method (void) const |
|
|
959 { |
|
|
960 octave_function *fcn = octave_call_stack::current (); |
|
|
961 |
|
|
962 return (fcn |
|
|
963 && (fcn->is_class_method () || fcn->is_class_constructor ()) |
|
|
964 && fcn->dispatch_class () == class_name ()); |
|
|
965 } |
|
|
966 |
|
|
967 DEFUN (class, args, , |
|
|
968 "-*- texinfo -*-\n\ |
|
|
969 @deftypefn {Built-in Function} {} class (@var{expr})\n\ |
|
|
970 @deftypefnx {Built-in Function} {} class (@var{s}, @var{id})\n\ |
|
|
971 \n\ |
|
|
972 Return the class of the expression @var{expr}, as a string or\n\ |
|
|
973 create a class object from the structure @var{s} with name @var{id}.\n\ |
|
|
974 @end deftypefn") |
|
|
975 { |
|
|
976 octave_value retval; |
|
|
977 |
|
|
978 int nargin = args.length (); |
|
|
979 |
|
|
980 if (nargin == 1) |
|
|
981 retval = args(0).class_name (); |
|
|
982 else if (nargin == 2) |
|
|
983 { |
|
|
984 Octave_map m = args(0).map_value (); |
|
|
985 |
|
|
986 if (! error_state) |
|
|
987 { |
|
|
988 std::string id = args(1).string_value (); |
|
|
989 |
|
|
990 if (! error_state) |
|
|
991 { |
|
|
992 octave_function *fcn = octave_call_stack::caller (); |
|
|
993 |
|
|
994 if (fcn && fcn->is_class_constructor ()) |
|
|
995 retval = octave_value (new octave_class (m, id)); |
|
|
996 else |
|
|
997 error ("class: invalid call from outside class constructor"); |
|
|
998 } |
|
|
999 else |
|
|
1000 error ("class: expecting character string as second argument"); |
|
|
1001 } |
|
|
1002 else |
|
|
1003 error ("class: expecting structure as first argument"); |
|
|
1004 } |
|
|
1005 else |
|
|
1006 print_usage (); |
|
|
1007 |
|
|
1008 return retval; |
|
|
1009 } |
|
|
1010 |
|
|
1011 |
|
|
1012 DEFUN (isobject, args, , |
|
|
1013 "-*- texinfo -*-\n\ |
|
|
1014 @deftypefn {Built-in Function} {} isobject (@var{x})\n\ |
|
|
1015 Return true if @var{x} is a class object.\n\ |
|
|
1016 @end deftypefn") |
|
|
1017 { |
|
|
1018 octave_value retval; |
|
|
1019 |
|
|
1020 if (args.length () == 1) |
|
|
1021 retval = args(0).is_object (); |
|
|
1022 else |
|
|
1023 print_usage (); |
|
|
1024 |
|
|
1025 return retval; |
|
|
1026 } |
|
|
1027 |
|
|
1028 DEFCMD (methods, args, nargout, |
|
|
1029 "-*- texinfo -*-\n\ |
|
|
1030 @deftypefn {Built-in Function} {} methods (@var{x})\n\ |
|
|
1031 @deftypefnx {Built-in Function} {} methods (\"classname\")\n\ |
|
|
1032 Return a cell array containing the names of the methods for the\n\ |
|
|
1033 object @var{x} or the named class.\n\ |
|
|
1034 @end deftypefn") |
|
|
1035 { |
|
|
1036 octave_value retval; |
|
|
1037 |
|
|
1038 if (args.length () == 1) |
|
|
1039 { |
|
|
1040 octave_value arg = args(0); |
|
|
1041 |
|
|
1042 std::string class_name; |
|
|
1043 |
|
|
1044 if (arg.is_object ()) |
|
|
1045 class_name = arg.class_name (); |
|
|
1046 else if (arg.is_string ()) |
|
|
1047 class_name = arg.string_value (); |
|
|
1048 else |
|
|
1049 error ("methods: expecting object or class name as argument"); |
|
|
1050 |
|
|
1051 if (! error_state) |
|
|
1052 { |
|
|
1053 string_vector sv = load_path::methods (class_name); |
|
|
1054 |
|
|
1055 if (nargout == 0) |
|
|
1056 { |
|
|
1057 octave_stdout << "Methods for class " << class_name << ":\n\n"; |
|
|
1058 |
|
|
1059 sv.list_in_columns (octave_stdout); |
|
|
1060 |
|
|
1061 octave_stdout << std::endl; |
|
|
1062 } |
|
|
1063 else |
|
|
1064 retval = sv; |
|
|
1065 } |
|
|
1066 } |
|
|
1067 else |
|
|
1068 print_usage (); |
|
|
1069 |
|
|
1070 return retval; |
|
|
1071 } |
|
|
1072 |
|
|
1073 static bool |
|
|
1074 is_built_in_class (const std::string& cn) |
|
|
1075 { |
|
|
1076 static std::set<std::string> built_in_class_names; |
|
|
1077 |
|
|
1078 if (built_in_class_names.empty ()) |
|
|
1079 { |
|
|
1080 built_in_class_names.insert ("double"); |
|
|
1081 built_in_class_names.insert ("single"); |
|
|
1082 built_in_class_names.insert ("cell"); |
|
|
1083 built_in_class_names.insert ("struct"); |
|
|
1084 built_in_class_names.insert ("logical"); |
|
|
1085 built_in_class_names.insert ("char"); |
|
|
1086 built_in_class_names.insert ("function handle"); |
|
|
1087 built_in_class_names.insert ("int8"); |
|
|
1088 built_in_class_names.insert ("uint8"); |
|
|
1089 built_in_class_names.insert ("int16"); |
|
|
1090 built_in_class_names.insert ("uint16"); |
|
|
1091 built_in_class_names.insert ("int32"); |
|
|
1092 built_in_class_names.insert ("uint32"); |
|
|
1093 built_in_class_names.insert ("int64"); |
|
|
1094 built_in_class_names.insert ("uint64"); |
|
|
1095 } |
|
|
1096 |
|
|
1097 return built_in_class_names.find (cn) != built_in_class_names.end (); |
|
|
1098 } |
|
|
1099 |
|
|
1100 static void |
|
|
1101 set_class_relationship (const std::string& sup_class, |
|
|
1102 const std::string& inf_class) |
|
|
1103 { |
|
|
1104 // FIXME |
|
|
1105 |
|
|
1106 warning ("class precedence not implemented"); |
|
|
1107 } |
|
|
1108 |
|
|
1109 DEFUN (superiorto, args, , |
|
|
1110 "-*- texinfo -*-\n\ |
|
|
1111 @deftypefn {Built-in Function} {} superiorto (@var{class_name})\n\ |
|
|
1112 When called from a class constructor, mark the object currently\n\ |
|
|
1113 constructed as having a higher precedence than @var{class_name}.\n\ |
|
|
1114 This function may only be called from a class constructor.\n\ |
|
|
1115 @end deftypefn") |
|
|
1116 { |
|
|
1117 octave_value retval; |
|
|
1118 |
|
|
1119 octave_function *fcn = octave_call_stack::caller (); |
|
|
1120 |
|
|
1121 if (fcn && fcn->is_class_constructor ()) |
|
|
1122 { |
|
|
1123 if (args.length () == 1) |
|
|
1124 { |
|
|
1125 std::string class_name = args(0).string_value (); |
|
|
1126 |
|
|
1127 if (! error_state) |
|
|
1128 { |
|
|
1129 if (! is_built_in_class (class_name)) |
|
|
1130 { |
|
|
1131 std::string this_class_name = fcn->name (); |
|
|
1132 |
|
|
1133 set_class_relationship (this_class_name, class_name); |
|
|
1134 } |
|
|
1135 else |
|
|
1136 { |
|
|
1137 // User defined classes always have higher precedence |
|
|
1138 // than built-in classes. |
|
|
1139 } |
|
|
1140 } |
|
|
1141 else |
|
|
1142 error ("superiorto: expecting argument to be class name"); |
|
|
1143 } |
|
|
1144 else |
|
|
1145 print_usage (); |
|
|
1146 } |
|
|
1147 else |
|
|
1148 error ("superiorto: invalid call from outside class constructor"); |
|
|
1149 |
|
|
1150 return retval; |
|
|
1151 } |
|
|
1152 |
|
|
1153 DEFUN (inferiorto, args, , |
|
|
1154 "-*- texinfo -*-\n\ |
|
|
1155 @deftypefn {Built-in Function} {} inferiorto (@var{class_name})\n\ |
|
|
1156 When called from a class constructor, mark the object currently\n\ |
|
|
1157 constructed as having a lower precedence than @var{class_name}.\n\ |
|
|
1158 This function may only be called from a class constructor.\n\ |
|
|
1159 @end deftypefn") |
|
|
1160 { |
|
|
1161 octave_value retval; |
|
|
1162 |
|
|
1163 octave_function *fcn = octave_call_stack::caller (); |
|
|
1164 |
|
|
1165 if (fcn && fcn->is_class_constructor ()) |
|
|
1166 { |
|
|
1167 if (args.length () == 1) |
|
|
1168 { |
|
|
1169 std::string class_name = args(0).string_value (); |
|
|
1170 |
|
|
1171 if (! error_state) |
|
|
1172 { |
|
|
1173 if (! is_built_in_class (class_name)) |
|
|
1174 { |
|
|
1175 std::string this_class_name = fcn->name (); |
|
|
1176 |
|
|
1177 set_class_relationship (class_name, this_class_name); |
|
|
1178 } |
|
|
1179 else |
|
|
1180 error ("inferiorto: cannot give user-defined class lower precedence than built-in class"); |
|
|
1181 } |
|
|
1182 else |
|
|
1183 error ("inferiorto: expecting argument to be class name"); |
|
|
1184 } |
|
|
1185 else |
|
|
1186 print_usage (); |
|
|
1187 } |
|
|
1188 else |
|
|
1189 error ("inferiorto: invalid call from outside class constructor"); |
|
|
1190 |
|
|
1191 return retval; |
|
|
1192 } |
|
|
1193 |
|
|
1194 /* |
|
|
1195 ;;; Local Variables: *** |
|
|
1196 ;;; mode: C++ *** |
|
|
1197 ;;; End: *** |
|
|
1198 */ |
