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1 // tree-expr.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_tree_expr_h) |
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25 #define octave_tree_expr_h 1 |
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26 |
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27 #include <time.h> |
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28 #include <stdio.h> |
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29 #include <iostream.h> |
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30 |
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31 #include "SLList.h" |
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32 |
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33 #include "variables.h" |
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34 #include "mappers.h" |
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35 #include "error.h" |
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36 #include "oct-obj.h" |
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37 |
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38 class tree_constant; |
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39 class tree_statement_list; |
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40 class tree_argument_list; |
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41 class tree_parameter_list; |
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42 class tree_return_list; |
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43 class tree_va_return_list; |
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44 class symbol_record; |
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45 class symbol_table; |
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46 |
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47 class tree_matrix; |
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48 class tree_builtin; |
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49 class tree_identifier; |
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50 class tree_indirect_ref; |
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51 class tree_function; |
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52 class tree_expression; |
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53 class tree_prefix_expression; |
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54 class tree_postfix_expression; |
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55 class tree_unary_expression; |
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56 class tree_binary_expression; |
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57 class tree_assignment_expression; |
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58 class tree_simple_assignment_expression; |
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59 class tree_multi_assignment_expression; |
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60 class tree_colon_expression; |
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61 class tree_index_expression; |
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62 |
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63 #include "tree-base.h" |
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64 |
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65 // A base class for expressions. |
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66 |
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67 class |
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68 tree_expression : public tree |
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69 { |
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70 public: |
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71 int in_parens; |
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72 |
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73 enum type |
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74 { |
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75 unknown, |
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76 assignment, |
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77 simple_assignment, |
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78 multi_assignment, |
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79 add, |
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80 subtract, |
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81 multiply, |
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82 el_mul, |
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83 divide, |
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84 el_div, |
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85 leftdiv, |
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86 el_leftdiv, |
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87 power, |
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88 elem_pow, |
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89 cmp_lt, |
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90 cmp_le, |
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91 cmp_eq, |
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92 cmp_ge, |
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93 cmp_gt, |
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94 cmp_ne, |
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95 and_and, |
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96 or_or, |
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97 and, |
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98 or, |
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99 not, |
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100 unot, |
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101 uminus, |
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102 hermitian, |
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103 transpose, |
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104 colon, |
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105 index, |
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106 increment, |
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107 decrement, |
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108 }; |
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109 |
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110 tree_expression (int l = -1, int c = -1) : tree (l, c) |
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111 { |
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112 in_parens = 0; |
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113 etype = unknown; |
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114 } |
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115 |
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116 virtual ~tree_expression (void) { } |
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117 |
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118 virtual int is_multi_val_ret_expression (void) const |
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119 { return 0; } |
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120 |
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121 virtual int is_identifier (void) const |
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122 { return 0; } |
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123 |
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124 virtual int is_indirect_ref (void) const |
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125 { return 0; } |
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126 |
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127 virtual int is_index_expression (void) const |
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128 { return 0; } |
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129 |
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130 virtual int is_assignment_expression (void) const |
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131 { return 0; } |
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132 |
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133 virtual int is_prefix_expression (void) const |
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134 { return 0; } |
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135 |
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136 virtual void mark_for_possible_ans_assign (void) |
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137 { panic_impossible (); } |
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138 |
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139 virtual tree_constant eval (int print) = 0; |
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140 |
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141 protected: |
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142 type etype; |
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143 }; |
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144 |
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145 // General matrices. This allows us to construct matrices from |
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146 // other matrices, variables, and functions. |
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147 |
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148 class |
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149 tree_matrix : public tree_expression |
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150 { |
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151 public: |
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152 enum dir |
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153 { |
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154 md_none, |
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155 md_right, |
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156 md_down, |
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157 }; |
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158 |
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159 tree_matrix (void) |
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160 { |
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161 direction = tree_matrix::md_none; |
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162 element = 0; |
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163 next = 0; |
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164 } |
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165 |
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166 tree_matrix (tree_expression *e, tree_matrix::dir d) |
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167 { |
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168 direction = d; |
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169 element = e; |
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170 next = 0; |
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171 } |
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172 |
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173 ~tree_matrix (void); |
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174 |
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175 tree_matrix *chain (tree_expression *e, tree_matrix::dir d); |
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176 tree_matrix *reverse (void); |
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177 int length (void); |
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178 |
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179 tree_return_list *to_return_list (void); |
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180 |
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181 tree_constant eval (int print); |
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182 |
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183 void print_code (ostream& os); |
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184 |
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185 private: |
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186 tree_matrix::dir direction; // Direction from the previous element. |
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187 tree_expression *element; |
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188 tree_matrix *next; |
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189 }; |
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190 |
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191 // A base class for objects that can be return multiple values |
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192 |
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193 class |
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194 tree_multi_val_ret : public tree_expression |
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195 { |
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196 public: |
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197 tree_multi_val_ret (int l = -1, int c = -1) : tree_expression (l, c) { } |
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198 |
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199 int is_multi_val_ret_expression (void) const |
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200 { return 1; } |
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201 |
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202 tree_constant eval (int print); |
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203 |
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204 virtual Octave_object eval (int print, int nargout, |
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205 const Octave_object& args) = 0; |
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206 }; |
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207 |
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208 // Used internally. |
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209 |
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210 class |
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211 tree_oct_obj : public tree_multi_val_ret |
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212 { |
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213 public: |
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214 tree_oct_obj (int l = -1, int c = -1) : tree_multi_val_ret (l, c) { } |
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215 |
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216 tree_oct_obj (const Octave_object& v, int l = -1, int c = -1) |
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217 : tree_multi_val_ret (l, c) |
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218 { |
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219 values = v; |
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220 } |
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221 |
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222 tree_constant eval (int print); |
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223 |
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224 Octave_object eval (int print, int nargout, const Octave_object& args); |
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225 |
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226 void print_code (ostream& os) { } |
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227 |
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228 private: |
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229 Octave_object values; |
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230 }; |
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231 |
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232 // A base class for objects that can be evaluated with argument lists. |
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233 |
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234 class |
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235 tree_fvc : public tree_multi_val_ret |
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236 { |
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237 public: |
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238 tree_fvc (int l = -1, int c = -1) : tree_multi_val_ret (l, c) { } |
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239 |
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240 virtual int is_constant (void) const |
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241 { return 0; } |
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242 |
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243 virtual tree_constant assign (tree_constant& t, |
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244 const Octave_object& args); |
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245 |
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246 virtual char *name (void) const |
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247 { panic_impossible (); return 0; } |
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248 |
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249 virtual void bump_value (tree_expression::type) |
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250 { panic_impossible (); } |
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251 |
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252 virtual tree_constant lookup_map_element (SLList<char*>& list); |
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253 |
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254 virtual int max_expected_args (void) |
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255 { panic_impossible (); return 0; } |
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256 |
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257 virtual char *fcn_file_name (void) |
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258 { return 0; } |
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259 |
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260 virtual time_t time_parsed (void) |
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261 { panic_impossible (); return 0; } |
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262 |
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263 virtual int is_system_fcn_file (void) const |
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264 { return 0; } |
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265 |
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266 virtual int save (ostream& os, int mark_as_global = 0, |
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267 int precision = 17) |
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268 { panic_impossible (); return 0; } |
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269 }; |
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270 |
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271 // Symbols from the symbol table. |
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272 |
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273 class |
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274 tree_identifier : public tree_fvc |
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275 { |
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276 friend class tree_index_expression; |
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277 |
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278 public: |
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279 tree_identifier (int l = -1, int c = -1) : tree_fvc (l, c) |
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280 { |
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281 sym = 0; |
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282 maybe_do_ans_assign = 0; |
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283 } |
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284 |
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285 tree_identifier (symbol_record *s, int l = -1, int c = -1) : tree_fvc (l, c) |
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286 { |
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287 sym = s; |
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288 maybe_do_ans_assign = 0; |
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289 } |
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290 |
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291 int is_identifier (void) const |
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292 { return 1; } |
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293 |
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294 char *name (void) const; |
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295 |
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296 tree_identifier *define (tree_constant *t); |
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297 tree_identifier *define (tree_function *t); |
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298 |
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299 void document (char *s); |
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300 |
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301 tree_constant assign (tree_constant& t); |
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302 tree_constant assign (tree_constant& t, const Octave_object& args); |
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303 |
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304 tree_constant assign (SLList<char*> list, tree_constant& t); |
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305 tree_constant assign (SLList<char*> list, tree_constant& t, |
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306 const Octave_object& args); |
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307 |
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308 int is_defined (void); |
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309 |
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310 void bump_value (tree_expression::type); |
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311 |
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312 tree_fvc *do_lookup (int& script_file_executed, int exec_script = 1); |
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313 |
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314 void link_to_global (void); |
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315 |
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316 void mark_as_formal_parameter (void); |
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317 |
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318 void mark_for_possible_ans_assign (void) |
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319 { maybe_do_ans_assign = 1; } |
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320 |
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321 tree_constant eval (int print); |
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322 |
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323 Octave_object eval (int print, int nargout, const Octave_object& args); |
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324 |
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325 void eval_undefined_error (void); |
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326 |
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327 void print_code (ostream& os); |
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328 |
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329 private: |
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330 symbol_record *sym; |
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331 int maybe_do_ans_assign; |
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332 }; |
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333 |
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334 // Indirect references to values (structure references). |
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335 |
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336 class |
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337 tree_indirect_ref : public tree_fvc |
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338 { |
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339 public: |
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340 tree_indirect_ref (int l = -1, int c = -1) : tree_fvc (l, c) |
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341 { |
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342 id = 0; |
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343 preserve_ident = 0; |
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344 } |
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345 |
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346 tree_indirect_ref (tree_identifier *i, int l = -1, int c = -1) |
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347 : tree_fvc (l, c) |
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348 { |
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349 id = i; |
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350 preserve_ident = 0; |
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351 } |
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352 |
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353 ~tree_indirect_ref (void); |
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354 |
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355 tree_indirect_ref *chain (const char *s); |
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356 |
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357 int is_indirect_ref (void) const |
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358 { return 1; } |
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359 |
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360 int is_identifier_only (void) const |
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361 { return (id && refs.empty ()); } |
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362 |
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363 tree_identifier *ident (void) |
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364 { return id; } |
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365 |
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366 void preserve_identifier (void) |
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367 { preserve_ident = 1; } |
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368 |
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369 char *name (void); |
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370 |
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371 tree_constant assign (tree_constant& t); |
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372 tree_constant assign (tree_constant& t, const Octave_object& args); |
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373 |
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374 void mark_for_possible_ans_assign (void) |
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375 { id->mark_for_possible_ans_assign (); } |
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376 |
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377 tree_constant eval (int print); |
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378 |
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379 Octave_object eval (int print, int nargout, const Octave_object& args); |
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380 |
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381 void print_code (ostream& os); |
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382 |
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383 private: |
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384 tree_identifier *id; |
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385 SLList<char*> refs; |
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386 int preserve_ident; |
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387 }; |
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388 |
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389 // Index expressions. |
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390 |
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391 class |
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392 tree_index_expression : public tree_multi_val_ret |
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393 { |
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394 public: |
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395 tree_index_expression (int l = -1, int c = -1) : tree_multi_val_ret (l, c) |
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396 { |
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397 id = 0; |
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398 list = 0; |
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399 } |
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400 |
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401 tree_index_expression (tree_identifier *i, int l = -1, int c = -1) |
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402 : tree_multi_val_ret (l, c) |
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403 { |
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404 id = new tree_indirect_ref (i); |
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405 list = 0; |
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406 } |
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407 |
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408 tree_index_expression (tree_identifier *i, tree_argument_list *lst, |
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409 int l = -1, int c = -1) |
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410 : tree_multi_val_ret (l, c) |
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411 { |
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412 id = new tree_indirect_ref (i); |
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413 list = lst; |
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414 } |
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415 |
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416 tree_index_expression (tree_indirect_ref *i, int l = -1, int c = -1) |
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417 : tree_multi_val_ret (l, c) |
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418 { |
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419 id = i; |
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420 list = 0; |
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421 } |
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422 |
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423 tree_index_expression (tree_indirect_ref *i, tree_argument_list *lst, |
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424 int l = -1, int c = -1) |
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425 : tree_multi_val_ret (l, c) |
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426 { |
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427 id = i; |
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428 list = lst; |
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429 } |
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430 |
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431 ~tree_index_expression (void); |
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432 |
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433 int is_index_expression (void) const |
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434 { return 1; } |
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435 |
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436 tree_indirect_ref *ident (void) |
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437 { return id; } |
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438 |
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439 char *name (void) |
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440 { return id->name (); } |
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441 |
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578
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442 tree_argument_list *arg_list (void) |
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443 { return list; } |
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444 |
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445 void mark_for_possible_ans_assign (void) |
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446 { |
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447 if (id) |
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448 id->mark_for_possible_ans_assign (); |
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449 } |
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450 |
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451 tree_constant eval (int print); |
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452 |
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453 Octave_object eval (int print, int nargout, const Octave_object& args); |
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454 |
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455 void eval_error (void); |
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456 |
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457 void print_code (ostream& os); |
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458 |
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459 private: |
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460 tree_indirect_ref *id; |
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461 tree_argument_list *list; |
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462 }; |
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463 |
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464 // Prefix expressions. |
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465 |
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466 class |
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467 tree_prefix_expression : public tree_expression |
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468 { |
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469 public: |
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470 tree_prefix_expression (int l = -1, int c = -1) : tree_expression (l, c) |
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471 { |
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472 id = 0; |
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473 etype = unknown; |
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474 } |
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475 |
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476 tree_prefix_expression (tree_identifier *t, tree_expression::type et, |
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477 int l = -1, int c = -1) |
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478 : tree_expression (l, c) |
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479 { |
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480 id = t; |
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481 etype = et; |
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482 } |
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483 |
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484 ~tree_prefix_expression (void) |
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485 { delete id; } |
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486 |
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487 tree_constant eval (int print); |
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488 |
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489 void eval_error (void); |
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490 |
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491 int is_prefix_expression (void) const |
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492 { return 1; } |
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493 |
|
581
|
494 char *oper (void) const; |
|
|
495 |
|
|
496 void print_code (ostream& os); |
|
|
497 |
|
578
|
498 private: |
|
|
499 tree_identifier *id; |
|
|
500 }; |
|
|
501 |
|
|
502 // Postfix expressions. |
|
|
503 |
|
|
504 class |
|
|
505 tree_postfix_expression : public tree_expression |
|
|
506 { |
|
|
507 public: |
|
|
508 tree_postfix_expression (int l = -1, int c = -1) : tree_expression (l, c) |
|
|
509 { |
|
|
510 id = 0; |
|
|
511 etype = unknown; |
|
|
512 } |
|
|
513 |
|
|
514 tree_postfix_expression (tree_identifier *t, tree_expression::type et, |
|
|
515 int l = -1, int c = -1) |
|
|
516 : tree_expression (l, c) |
|
|
517 { |
|
|
518 id = t; |
|
|
519 etype = et; |
|
|
520 } |
|
|
521 |
|
|
522 ~tree_postfix_expression (void) |
|
|
523 { delete id; } |
|
|
524 |
|
|
525 tree_constant eval (int print); |
|
|
526 |
|
|
527 void eval_error (void); |
|
|
528 |
|
581
|
529 char *oper (void) const; |
|
|
530 |
|
|
531 void print_code (ostream& os); |
|
|
532 |
|
578
|
533 private: |
|
|
534 tree_identifier *id; |
|
|
535 }; |
|
|
536 |
|
|
537 // Unary expressions. |
|
|
538 |
|
|
539 class |
|
|
540 tree_unary_expression : public tree_expression |
|
|
541 { |
|
|
542 public: |
|
|
543 tree_unary_expression (int l = -1, int c = -1) : tree_expression (l, c) |
|
|
544 { |
|
|
545 etype = tree_expression::unknown; |
|
|
546 op = 0; |
|
|
547 } |
|
|
548 |
|
|
549 tree_unary_expression (tree_expression *a, tree_expression::type t, |
|
|
550 int l = -1, int c = -1) |
|
|
551 : tree_expression (l, c) |
|
|
552 { |
|
|
553 etype = t; |
|
|
554 op = a; |
|
|
555 } |
|
|
556 |
|
|
557 ~tree_unary_expression (void) |
|
|
558 { delete op; } |
|
|
559 |
|
|
560 tree_constant eval (int print); |
|
|
561 |
|
|
562 void eval_error (void); |
|
|
563 |
|
581
|
564 char *oper (void) const; |
|
|
565 |
|
|
566 void print_code (ostream& os); |
|
|
567 |
|
578
|
568 private: |
|
|
569 tree_expression *op; |
|
|
570 }; |
|
|
571 |
|
|
572 // Binary expressions. |
|
|
573 |
|
|
574 class |
|
|
575 tree_binary_expression : public tree_expression |
|
|
576 { |
|
|
577 public: |
|
|
578 tree_binary_expression (int l = -1, int c = -1) : tree_expression (l, c) |
|
|
579 { |
|
|
580 etype = tree_expression::unknown; |
|
|
581 op1 = 0; |
|
|
582 op2 = 0; |
|
|
583 } |
|
|
584 |
|
|
585 tree_binary_expression (tree_expression *a, tree_expression *b, |
|
|
586 tree_expression::type t, int l = -1, int c = -1) |
|
|
587 : tree_expression (l, c) |
|
|
588 { |
|
|
589 etype = t; |
|
|
590 op1 = a; |
|
|
591 op2 = b; |
|
|
592 } |
|
|
593 |
|
|
594 ~tree_binary_expression (void) |
|
|
595 { |
|
|
596 delete op1; |
|
|
597 delete op2; |
|
|
598 } |
|
|
599 |
|
|
600 tree_constant eval (int print); |
|
|
601 |
|
|
602 void eval_error (void); |
|
|
603 |
|
581
|
604 char *oper (void) const; |
|
|
605 |
|
|
606 void print_code (ostream& os); |
|
|
607 |
|
578
|
608 private: |
|
|
609 tree_expression *op1; |
|
|
610 tree_expression *op2; |
|
|
611 }; |
|
|
612 |
|
|
613 // Simple assignment expressions. |
|
|
614 |
|
|
615 class |
|
666
|
616 tree_simple_assignment_expression : public tree_expression |
|
578
|
617 { |
|
748
|
618 private: |
|
581
|
619 void init (int plhs, int ans_assign) |
|
|
620 { |
|
|
621 etype = tree_expression::assignment; |
|
|
622 lhs = 0; |
|
|
623 index = 0; |
|
|
624 rhs = 0; |
|
|
625 preserve = plhs; |
|
|
626 ans_ass = ans_assign; |
|
|
627 } |
|
|
628 |
|
748
|
629 public: |
|
581
|
630 tree_simple_assignment_expression (int plhs = 0, int ans_assign = 0, |
|
|
631 int l = -1, int c = -1) |
|
666
|
632 : tree_expression (l, c) |
|
581
|
633 { init (plhs, ans_assign); } |
|
578
|
634 |
|
|
635 tree_simple_assignment_expression (tree_identifier *i, |
|
|
636 tree_expression *r, |
|
581
|
637 int plhs = 0, int ans_assign = 0, |
|
|
638 int l = -1, int c = -1) |
|
666
|
639 : tree_expression (l, c) |
|
578
|
640 { |
|
581
|
641 init (plhs, ans_assign); |
|
748
|
642 lhs = new tree_indirect_ref (i); |
|
|
643 rhs = r; |
|
|
644 } |
|
|
645 |
|
|
646 tree_simple_assignment_expression (tree_indirect_ref *i, |
|
|
647 tree_expression *r, |
|
|
648 int plhs = 0, int ans_assign = 0, |
|
|
649 int l = -1, int c = -1) |
|
|
650 : tree_expression (l, c) |
|
|
651 { |
|
|
652 init (plhs, ans_assign); |
|
578
|
653 lhs = i; |
|
|
654 rhs = r; |
|
|
655 } |
|
|
656 |
|
|
657 tree_simple_assignment_expression (tree_index_expression *idx_expr, |
|
|
658 tree_expression *r, |
|
581
|
659 int plhs = 0, int ans_assign = 0, |
|
|
660 int l = -1, int c = -1) |
|
666
|
661 : tree_expression (l, c) |
|
578
|
662 { |
|
581
|
663 init (plhs, ans_assign); |
|
578
|
664 lhs = idx_expr->ident (); |
|
|
665 index = idx_expr->arg_list (); |
|
|
666 rhs = r; |
|
|
667 } |
|
|
668 |
|
|
669 ~tree_simple_assignment_expression (void); |
|
|
670 |
|
748
|
671 int left_hand_side_is_identifier_only (void) |
|
|
672 { return lhs->is_identifier_only (); } |
|
|
673 |
|
|
674 tree_identifier *left_hand_side_id (void) |
|
|
675 { return lhs->ident (); } |
|
578
|
676 |
|
581
|
677 int is_ans_assign (void) |
|
|
678 { return ans_ass; } |
|
|
679 |
|
578
|
680 tree_constant eval (int print); |
|
|
681 |
|
666
|
682 int is_assignment_expression (void) const |
|
|
683 { return 1; } |
|
|
684 |
|
578
|
685 void eval_error (void); |
|
|
686 |
|
581
|
687 void print_code (ostream& os); |
|
|
688 |
|
578
|
689 private: |
|
748
|
690 tree_indirect_ref *lhs; |
|
578
|
691 tree_argument_list *index; |
|
|
692 tree_expression *rhs; |
|
|
693 int preserve; |
|
581
|
694 int ans_ass; |
|
578
|
695 }; |
|
|
696 |
|
|
697 // Multi-valued assignment expressions. |
|
|
698 |
|
|
699 class |
|
666
|
700 tree_multi_assignment_expression : public tree_multi_val_ret |
|
578
|
701 { |
|
|
702 public: |
|
1229
|
703 tree_multi_assignment_expression (int plhs = 0, int l = -1, int c = -1) |
|
666
|
704 : tree_multi_val_ret (l, c) |
|
578
|
705 { |
|
|
706 etype = tree_expression::multi_assignment; |
|
1229
|
707 preserve = plhs; |
|
578
|
708 lhs = 0; |
|
|
709 rhs = 0; |
|
|
710 } |
|
|
711 |
|
|
712 tree_multi_assignment_expression (tree_return_list *lst, |
|
666
|
713 tree_multi_val_ret *r, |
|
1229
|
714 int plhs = 0, |
|
578
|
715 int l = -1, int c = -1) |
|
666
|
716 : tree_multi_val_ret (l, c) |
|
578
|
717 { |
|
|
718 etype = tree_expression::multi_assignment; |
|
1229
|
719 preserve = plhs; |
|
578
|
720 lhs = lst; |
|
|
721 rhs = r; |
|
|
722 } |
|
|
723 |
|
|
724 ~tree_multi_assignment_expression (void); |
|
|
725 |
|
|
726 tree_constant eval (int print); |
|
|
727 |
|
|
728 Octave_object eval (int print, int nargout, const Octave_object& args); |
|
|
729 |
|
666
|
730 int is_assignment_expression (void) const |
|
|
731 { return 1; } |
|
|
732 |
|
578
|
733 void eval_error (void); |
|
|
734 |
|
581
|
735 void print_code (ostream& os); |
|
|
736 |
|
578
|
737 private: |
|
1229
|
738 int preserve; |
|
578
|
739 tree_return_list *lhs; |
|
666
|
740 tree_multi_val_ret *rhs; |
|
578
|
741 }; |
|
|
742 |
|
|
743 // Colon expressions. |
|
|
744 |
|
|
745 class |
|
|
746 tree_colon_expression : public tree_expression |
|
|
747 { |
|
|
748 public: |
|
|
749 tree_colon_expression (int l = -1, int c = -1) : tree_expression (l, c) |
|
|
750 { |
|
|
751 etype = tree_expression::colon; |
|
|
752 op1 = 0; |
|
|
753 op2 = 0; |
|
|
754 op3 = 0; |
|
|
755 } |
|
|
756 |
|
|
757 tree_colon_expression (tree_expression *a, tree_expression *b, |
|
|
758 int l = -1, int c = -1) |
|
|
759 : tree_expression (l, c) |
|
|
760 { |
|
|
761 etype = tree_expression::colon; |
|
|
762 op1 = a; |
|
|
763 op2 = b; |
|
|
764 op3 = 0; |
|
|
765 } |
|
|
766 |
|
|
767 ~tree_colon_expression (void) |
|
|
768 { |
|
|
769 delete op1; |
|
|
770 delete op2; |
|
|
771 delete op3; |
|
|
772 } |
|
|
773 |
|
|
774 tree_colon_expression *chain (tree_expression *t); |
|
|
775 |
|
|
776 tree_constant eval (int print); |
|
|
777 |
|
|
778 void eval_error (const char *s); |
|
|
779 |
|
581
|
780 void print_code (ostream& os); |
|
|
781 |
|
578
|
782 private: |
|
|
783 tree_expression *op1; |
|
|
784 tree_expression *op2; |
|
|
785 tree_expression *op3; |
|
|
786 }; |
|
|
787 |
|
|
788 // Builtin functions. |
|
|
789 |
|
|
790 class |
|
|
791 tree_builtin : public tree_fvc |
|
|
792 { |
|
|
793 public: |
|
|
794 tree_builtin (const char *nm = 0); |
|
|
795 |
|
|
796 tree_builtin (int i_max, int o_max, Mapper_fcn& m_fcn, |
|
|
797 const char *nm = 0); |
|
|
798 |
|
|
799 tree_builtin (int i_max, int o_max, Octave_builtin_fcn f, |
|
|
800 const char *nm = 0); |
|
|
801 |
|
|
802 // int is_builtin (void) const; |
|
|
803 |
|
|
804 int is_mapper_function (void) const |
|
|
805 { return is_mapper; } |
|
|
806 |
|
|
807 tree_constant eval (int print); |
|
|
808 |
|
|
809 Octave_object eval (int print, int nargout, const Octave_object& args); |
|
|
810 |
|
|
811 char *name (void) const |
|
|
812 { return my_name; } |
|
|
813 |
|
|
814 int max_expected_args (void); |
|
|
815 |
|
581
|
816 void print_code (ostream& os) |
|
|
817 { |
|
|
818 os << my_name << " can't be printed because it is a builtin function\n"; |
|
|
819 } |
|
|
820 |
|
578
|
821 private: |
|
|
822 int nargin_max; |
|
|
823 int nargout_max; |
|
|
824 int is_mapper; |
|
|
825 Mapper_fcn mapper_fcn; |
|
|
826 Octave_builtin_fcn fcn; |
|
|
827 char *my_name; |
|
|
828 }; |
|
|
829 |
|
|
830 // User defined functions. |
|
|
831 |
|
494
|
832 class |
|
|
833 tree_function : public tree_fvc |
|
|
834 { |
|
748
|
835 private: |
|
1161
|
836 void install_nargin_and_nargout (void); |
|
|
837 |
|
|
838 void bind_nargin_and_nargout (int nargin, int nargout); |
|
|
839 |
|
578
|
840 void init (void) |
|
|
841 { |
|
|
842 call_depth = 0; |
|
|
843 param_list = 0; |
|
|
844 ret_list = 0; |
|
|
845 sym_tab = 0; |
|
|
846 cmd_list = 0; |
|
|
847 file_name = 0; |
|
|
848 fcn_name = 0; |
|
|
849 t_parsed = 0; |
|
|
850 system_fcn_file = 0; |
|
|
851 num_named_args = 0; |
|
|
852 num_args_passed = 0; |
|
|
853 curr_va_arg_number = 0; |
|
723
|
854 vr_list = 0; |
|
578
|
855 } |
|
494
|
856 |
|
748
|
857 public: |
|
578
|
858 tree_function (int l = -1, int c = -1) : tree_fvc (l, c) |
|
|
859 { init (); } |
|
494
|
860 |
|
578
|
861 tree_function (tree_statement_list *cl, symbol_table *st, |
|
|
862 int l = -1, int c = -1) |
|
|
863 : tree_fvc (l, c) |
|
|
864 { |
|
|
865 init (); |
|
|
866 sym_tab = st; |
|
|
867 cmd_list = cl; |
|
1161
|
868 install_nargin_and_nargout (); |
|
578
|
869 } |
|
|
870 |
|
|
871 // tree_function *define (tree_statement_list *t); |
|
494
|
872 tree_function *define_param_list (tree_parameter_list *t); |
|
|
873 tree_function *define_ret_list (tree_parameter_list *t); |
|
|
874 |
|
905
|
875 void stash_fcn_file_name (void); |
|
578
|
876 |
|
|
877 void stash_fcn_file_time (time_t t) |
|
|
878 { t_parsed = t; } |
|
494
|
879 |
|
578
|
880 char *fcn_file_name (void) |
|
|
881 { return file_name; } |
|
|
882 |
|
|
883 time_t time_parsed (void) |
|
|
884 { return t_parsed; } |
|
494
|
885 |
|
|
886 void mark_as_system_fcn_file (void); |
|
578
|
887 |
|
|
888 int is_system_fcn_file (void) const |
|
|
889 { return system_fcn_file; } |
|
494
|
890 |
|
|
891 int takes_varargs (void) const; |
|
578
|
892 |
|
|
893 void octave_va_start (void) |
|
|
894 { curr_va_arg_number = num_named_args; } |
|
|
895 |
|
494
|
896 tree_constant octave_va_arg (void); |
|
|
897 |
|
922
|
898 Octave_object octave_all_va_args (void); |
|
|
899 |
|
723
|
900 int takes_var_return (void) const; |
|
|
901 |
|
|
902 void octave_vr_val (const tree_constant& val); |
|
|
903 |
|
494
|
904 void stash_function_name (char *s); |
|
578
|
905 |
|
|
906 char *function_name (void) |
|
|
907 { return fcn_name; } |
|
494
|
908 |
|
|
909 tree_constant eval (int print); |
|
|
910 |
|
506
|
911 Octave_object eval (int print, int nargout, const Octave_object& args); |
|
494
|
912 |
|
|
913 int max_expected_args (void); |
|
|
914 |
|
|
915 void traceback_error (void); |
|
|
916 |
|
581
|
917 void print_code (ostream& os); |
|
|
918 |
|
494
|
919 private: |
|
|
920 int call_depth; |
|
|
921 tree_parameter_list *param_list; |
|
|
922 tree_parameter_list *ret_list; |
|
|
923 symbol_table *sym_tab; |
|
578
|
924 tree_statement_list *cmd_list; |
|
494
|
925 char *file_name; |
|
|
926 char *fcn_name; |
|
|
927 time_t t_parsed; |
|
|
928 int system_fcn_file; |
|
|
929 int num_named_args; |
|
500
|
930 Octave_object args_passed; |
|
494
|
931 int num_args_passed; |
|
508
|
932 int curr_va_arg_number; |
|
723
|
933 tree_va_return_list *vr_list; |
|
1161
|
934 symbol_record *nargin_sr; |
|
|
935 symbol_record *nargout_sr; |
|
494
|
936 }; |
|
|
937 |
|
|
938 #endif |
|
|
939 |
|
|
940 /* |
|
|
941 ;;; Local Variables: *** |
|
|
942 ;;; mode: C++ *** |
|
|
943 ;;; page-delimiter: "^/\\*" *** |
|
|
944 ;;; End: *** |
|
|
945 */ |
