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1 /* |
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3 Copyright (C) 1996 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 (octave_tree_const_h) |
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24 #define octave_tree_const_h 1 |
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25 |
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26 #if defined (__GNUG__) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 #include <string> |
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31 |
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32 class ostream; |
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33 |
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34 #include "Range.h" |
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35 #include "mx-base.h" |
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36 #include "oct-alloc.h" |
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37 #include "str-vec.h" |
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38 |
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39 #include "pt-fvc.h" |
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40 |
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41 class Octave_map; |
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42 class octave_value_list; |
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43 |
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44 class tree_walker; |
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45 |
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46 #include "ov.h" |
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47 |
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48 class |
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49 tree_constant : public tree_fvc |
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50 { |
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51 public: |
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52 |
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53 enum magic_colon { magic_colon_t }; |
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54 enum all_va_args { all_va_args_t }; |
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55 |
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56 // Constructors. It is possible to create the following types of |
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57 // constants: |
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58 // |
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59 // constant type constructor arguments |
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60 // ------------- --------------------- |
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61 // unknown none |
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62 // real scalar double |
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63 // real matrix Matrix |
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64 // DiagMatrix |
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65 // RowVector |
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66 // ColumnVector |
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67 // complex scalar Complex |
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68 // complex matrix ComplexMatrix |
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69 // ComplexDiagMatrix |
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70 // ComplexRowVector |
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71 // ComplexColumnVector |
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72 // char matrix charMatrix |
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73 // string char* (null terminated) |
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74 // string |
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75 // charMatrix |
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76 // range double, double, double |
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77 // Range |
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78 // map Octave_map |
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79 // magic colon tree_constant::magic_colon |
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80 // all_va_args tree_constant::all_va_args |
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81 |
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82 tree_constant (void) |
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83 : tree_fvc (), val (), orig_text () { } |
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84 |
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85 tree_constant (double d, int l = -1, int c = -1) |
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86 : tree_fvc (l, c), val (d), orig_text () { } |
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87 |
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88 tree_constant (const Matrix& m) |
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89 : tree_fvc (), val (m), orig_text () { } |
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90 |
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91 tree_constant (const DiagMatrix& d) |
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92 : tree_fvc (), val (d), orig_text () { } |
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93 |
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94 tree_constant (const RowVector& v, int pcv = -1) |
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95 : tree_fvc (), val (v, pcv), orig_text () { } |
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96 |
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97 tree_constant (const ColumnVector& v, int pcv = -1) |
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98 : tree_fvc (), val (v, pcv), orig_text () { } |
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99 |
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100 tree_constant (const Complex& C, int l = -1, int c = -1) |
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101 : tree_fvc (l, c), val (C), orig_text () { } |
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102 |
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103 tree_constant (const ComplexMatrix& m) |
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104 : tree_fvc (), val (m), orig_text () { } |
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105 |
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106 tree_constant (const ComplexDiagMatrix& d) |
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107 : tree_fvc (), val (d), orig_text () { } |
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108 |
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109 tree_constant (const ComplexRowVector& v, int pcv = -1) |
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110 : tree_fvc (), val (v, pcv), orig_text () { } |
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111 |
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112 tree_constant (const ComplexColumnVector& v, int pcv = -1) |
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113 : tree_fvc (), val (v, pcv), orig_text () { } |
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114 |
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115 tree_constant (const char *s, int l = -1, int c = -1) |
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116 : tree_fvc (l, c), val (s), orig_text () { } |
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117 |
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118 tree_constant (const string& s, int l = -1, int c = -1) |
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119 : tree_fvc (l, c), val (s), orig_text () { } |
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120 |
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121 tree_constant (const string_vector& s, int l = -1, int c = -1) |
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122 : tree_fvc (l, c), val (s), orig_text () { } |
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123 |
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124 tree_constant (const charMatrix& chm, bool is_string = false) |
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125 : tree_fvc (), val (chm, is_string), orig_text () { } |
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126 |
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127 tree_constant (double base, double limit, double inc) |
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128 : tree_fvc (), val (base, limit, inc), orig_text () { } |
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129 |
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130 tree_constant (const Range& r) |
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131 : tree_fvc (), val (r), orig_text () { } |
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132 |
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133 tree_constant (const Octave_map& m) |
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134 : tree_fvc (), val (m), orig_text () { } |
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135 |
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136 tree_constant (tree_constant::magic_colon, int l = -1, int c = -1) |
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137 : tree_fvc (l, c), val (octave_value::magic_colon_t), orig_text () { } |
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138 |
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139 tree_constant (tree_constant::all_va_args, int l = -1, int c = -1) |
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140 : tree_fvc (l, c), val (octave_value::all_va_args_t), orig_text () { } |
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141 |
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142 tree_constant (const octave_value& v, int l = -1, int c = -1) |
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143 : tree_fvc (l, c), val (v), orig_text () { } |
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144 |
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145 tree_constant (const tree_constant& a) |
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146 : tree_fvc (), val (a.val), orig_text () { } |
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147 |
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148 ~tree_constant (void) { } |
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149 |
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150 tree_constant& operator = (const tree_constant& a) |
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151 { |
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152 if (this != &a) |
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153 { |
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154 tree_fvc::operator = (a); |
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155 val = a.val; |
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156 } |
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157 return *this; |
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158 } |
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159 |
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160 void *operator new (size_t size) |
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161 { return allocator.alloc (size); } |
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162 |
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163 void operator delete (void *p, size_t size) |
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164 { allocator.free (p, size); } |
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165 |
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166 // Indexed assignment. |
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167 |
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168 octave_value index (const octave_value_list& idx) const |
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169 { return val.index (idx); } |
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170 |
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171 octave_value& reference (void) |
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172 { |
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173 val.make_unique (); |
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174 return val; |
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175 } |
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176 |
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177 octave_value value (void) const |
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178 { |
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179 return val; |
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180 } |
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181 |
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182 octave_value assign (const octave_value_list& idx, const octave_value& rhs) |
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183 { |
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184 val.assign (idx, rhs); |
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185 return val; |
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186 } |
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187 |
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188 // Type. It would be nice to eliminate the need for this. |
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189 |
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190 bool is_constant (void) const { return true; } |
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191 |
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192 // Size. |
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193 |
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194 int rows (void) const { return val.rows (); } |
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195 int columns (void) const { return val.columns (); } |
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196 |
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197 // Does this constant have a type? Both of these are provided since |
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198 // it is sometimes more natural to write is_undefined() instead of |
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199 // ! is_defined(). |
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200 |
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201 bool is_defined (void) const { return val.is_defined (); } |
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202 bool is_undefined (void) const { return val.is_undefined (); } |
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203 |
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204 // Is this constant a particular type, or does it belong to a |
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205 // particular class of types? |
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206 |
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207 bool is_real_scalar (void) const { return val.is_real_scalar (); } |
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208 bool is_real_matrix (void) const { return val.is_real_matrix (); } |
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209 bool is_complex_scalar (void) const { return val.is_complex_scalar (); } |
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210 bool is_complex_matrix (void) const { return val.is_complex_matrix (); } |
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211 bool is_char_matrix (void) const { return val.is_char_matrix (); } |
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212 bool is_string (void) const { return val.is_string (); } |
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213 bool is_range (void) const { return val.is_range (); } |
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214 bool is_map (void) const { return val.is_map (); } |
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215 bool is_magic_colon (void) const { return val.is_magic_colon (); } |
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216 bool is_all_va_args (void) const { return val.is_all_va_args (); } |
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217 |
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218 // Are any or all of the elements in this constant nonzero? |
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219 |
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220 octave_value all (void) const { return val.all (); } |
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221 octave_value any (void) const { return val.any (); } |
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222 |
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223 // Other type stuff. |
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224 |
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225 bool is_real_type (void) const { return val.is_real_type (); } |
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226 |
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227 bool is_complex_type (void) const { return val.is_complex_type (); } |
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228 |
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229 bool is_scalar_type (void) const { return val.is_scalar_type (); } |
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230 bool is_matrix_type (void) const { return val.is_matrix_type (); } |
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231 |
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232 bool is_numeric_type (void) const |
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233 { return val.is_numeric_type (); } |
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234 |
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235 bool valid_as_scalar_index (void) const |
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236 { return val.valid_as_scalar_index (); } |
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237 |
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238 bool valid_as_zero_index (void) const |
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239 { return val.valid_as_zero_index (); } |
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240 |
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241 // Does this constant correspond to a truth value? |
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242 |
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243 bool is_true (void) const { return val.is_true (); } |
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244 |
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245 // Is at least one of the dimensions of this constant zero? |
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246 |
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247 bool is_empty (void) const |
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248 { return val.is_empty (); } |
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249 |
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250 // Are the dimensions of this constant zero by zero? |
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251 |
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252 bool is_zero_by_zero (void) const |
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253 { return val.is_zero_by_zero (); } |
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254 |
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255 // Values. |
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256 |
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257 double double_value (bool frc_str_conv = false) const |
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258 { return val.double_value (frc_str_conv); } |
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259 |
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260 Matrix matrix_value (bool frc_str_conv = false) const |
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261 { return val.matrix_value (frc_str_conv); } |
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262 |
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263 Complex complex_value (bool frc_str_conv = false) const |
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264 { return val.complex_value (frc_str_conv); } |
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265 |
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266 ComplexMatrix complex_matrix_value (bool frc_str_conv = false) const |
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267 { return val.complex_matrix_value (frc_str_conv); } |
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268 |
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269 charMatrix char_matrix_value (bool frc_str_conv = false) const |
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270 { return val.char_matrix_value (frc_str_conv); } |
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271 |
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272 charMatrix all_strings (void) const |
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273 { return val.all_strings (); } |
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274 |
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275 string string_value (void) const |
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276 { return val.string_value (); } |
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277 |
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278 Range range_value (void) const |
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279 { return val.range_value (); } |
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280 |
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281 Octave_map map_value (void) const; |
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282 |
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283 octave_value lookup_map_element (const string& ref, |
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284 bool insert = false, |
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285 bool silent = false); |
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286 |
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287 octave_value lookup_map_element (SLList<string>& list, |
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288 bool insert = false, |
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289 bool silent = false); |
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290 |
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291 ColumnVector vector_value (bool /* frc_str_conv */ = false, |
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292 bool /* frc_vec_conv */ = false) const |
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293 { return val.vector_value (); } |
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294 |
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295 ComplexColumnVector |
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296 complex_vector_value (bool /* frc_str_conv */ = false, |
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297 bool /* frc_vec_conv */ = false) const |
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298 { return val.complex_vector_value (); } |
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299 |
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300 // Binary and unary operations. |
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301 |
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302 friend octave_value do_binary_op (octave_value& a, octave_value& b, |
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303 tree_expression::type t); |
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304 |
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305 friend octave_value do_unary_op (octave_value& a, |
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306 tree_expression::type t); |
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307 |
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308 // Conversions. These should probably be private. If a user of this |
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309 // class wants a certain kind of constant, he should simply ask for |
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310 // it, and we should convert it if possible. |
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311 |
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312 octave_value convert_to_str (void) const |
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313 { return val.convert_to_str (); } |
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314 |
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315 void convert_to_row_or_column_vector (void) |
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316 { val.convert_to_row_or_column_vector (); } |
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317 |
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318 void maybe_mutate (void) |
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319 { val.maybe_mutate (); } |
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320 |
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321 // Increment or decrement this constant. |
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322 |
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323 void increment (void) { val.increment (); } |
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324 |
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325 void decrement (void) { val.decrement (); } |
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326 |
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327 void print (void); |
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328 void print (ostream& os, bool pr_as_read_syntax = false) |
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329 { val.print (os, pr_as_read_syntax); } |
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330 |
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331 void print_with_name (const string& name, bool print_padding = true); |
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332 void print_with_name (ostream& os, const string& name, |
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333 bool print_padding = true); |
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334 |
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335 octave_value eval (bool print_result); |
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336 |
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337 octave_value_list eval (bool, int, const octave_value_list&); |
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338 |
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339 // Store the original text corresponding to this constant for later |
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340 // pretty printing. |
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341 |
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342 void stash_original_text (const string& s) { orig_text = s; } |
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343 |
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344 string original_text (void) { return orig_text; } |
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345 |
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346 void accept (tree_walker& tw); |
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347 |
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348 string type_name (void) const { return val.type_name (); } |
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349 |
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350 private: |
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351 |
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352 // For custom memory management. |
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353 static octave_allocator allocator; |
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354 |
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355 // The actual value that this constant refers to. |
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356 octave_value val; |
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357 |
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358 // The original text form of this constant. |
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359 string orig_text; |
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360 }; |
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361 |
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362 #endif |
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363 |
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364 /* |
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365 ;;; Local Variables: *** |
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366 ;;; mode: C++ *** |
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367 ;;; End: *** |
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368 */ |
