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