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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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27 #ifdef HAVE_CONFIG_H |
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28 #include <config.h> |
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29 #endif |
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30 |
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31 #include <iostream.h> |
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32 |
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33 #include "error.h" |
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34 #include "ov-usr-fcn.h" |
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35 #include "pr-output.h" |
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36 #include "pt-cmd.h" |
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37 #include "pt-const.h" |
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38 #include "pt-exp.h" |
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39 #include "pt-id.h" |
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40 #include "pt-indir.h" |
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41 #include "pt-mat.h" |
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42 #include "pt-misc.h" |
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43 #include "pt-plot.h" |
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44 #include "pt-pr-code.h" |
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45 |
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46 void |
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47 tree_print_code::visit_argument_list (tree_argument_list& lst) |
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48 { |
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49 Pix p = lst.first (); |
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50 |
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51 while (p) |
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52 { |
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53 tree_expression *elt = lst (p); |
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54 |
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55 lst.next (p); |
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56 |
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57 if (elt) |
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58 { |
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59 elt->accept (*this); |
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60 |
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61 if (p) |
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62 os << ", "; |
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63 } |
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64 } |
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65 } |
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66 |
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67 void |
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68 tree_print_code::visit_binary_expression (tree_binary_expression& expr) |
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69 { |
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70 indent (); |
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71 |
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72 print_parens (expr, "("); |
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73 |
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74 tree_expression *op1 = expr.lhs (); |
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75 |
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76 if (op1) |
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77 op1->accept (*this); |
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78 |
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79 os << " " << expr.oper () << " "; |
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80 |
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81 tree_expression *op2 = expr.rhs (); |
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82 |
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83 if (op2) |
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84 op2->accept (*this); |
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85 |
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86 print_parens (expr, ")"); |
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87 } |
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88 |
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89 void |
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90 tree_print_code::visit_break_command (tree_break_command&) |
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91 { |
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92 indent (); |
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93 |
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94 os << "break"; |
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95 } |
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96 |
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97 void |
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98 tree_print_code::visit_colon_expression (tree_colon_expression& expr) |
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99 { |
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100 indent (); |
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101 |
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102 print_parens (expr, "("); |
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103 |
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104 tree_expression *op1 = expr.base (); |
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105 |
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106 if (op1) |
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107 op1->accept (*this); |
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108 |
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109 // Stupid syntax. |
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110 |
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111 tree_expression *op3 = expr.increment (); |
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112 |
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113 if (op3) |
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114 { |
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115 os << ":"; |
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116 op3->accept (*this); |
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117 } |
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118 |
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119 tree_expression *op2 = expr.limit (); |
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120 |
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121 if (op2) |
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122 { |
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123 os << ":"; |
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124 op2->accept (*this); |
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125 } |
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126 |
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127 print_parens (expr, ")"); |
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128 } |
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129 |
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130 void |
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131 tree_print_code::visit_continue_command (tree_continue_command&) |
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132 { |
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133 indent (); |
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134 |
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135 os << "continue"; |
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136 } |
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137 |
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138 void |
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139 tree_print_code::visit_decl_command (tree_decl_command& cmd) |
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140 { |
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141 indent (); |
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142 |
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143 os << cmd.name () << " "; |
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144 |
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145 tree_decl_init_list *init_list = cmd.initializer_list (); |
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146 |
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147 if (init_list) |
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148 init_list->accept (*this); |
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149 } |
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150 |
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151 void |
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152 tree_print_code::visit_decl_elt (tree_decl_elt& cmd) |
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153 { |
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154 tree_identifier *id = cmd.ident (); |
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155 |
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156 if (id) |
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157 id->accept (*this); |
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158 |
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159 tree_expression *expr = cmd.expression (); |
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160 |
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161 if (expr) |
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162 { |
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163 os << " = "; |
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164 |
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165 expr->accept (*this); |
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166 } |
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167 } |
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168 |
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169 void |
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170 tree_print_code::visit_decl_init_list (tree_decl_init_list& lst) |
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171 { |
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172 Pix p = lst.first (); |
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173 |
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174 while (p) |
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175 { |
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176 tree_decl_elt *elt = lst (p); |
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177 |
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178 lst.next (p); |
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179 |
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180 if (elt) |
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181 { |
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182 elt->accept (*this); |
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183 |
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184 if (p) |
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185 os << ", "; |
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186 } |
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187 } |
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188 } |
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189 |
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190 void |
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191 tree_print_code::visit_simple_for_command (tree_simple_for_command& cmd) |
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192 { |
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193 indent (); |
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194 |
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195 os << "for "; |
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196 |
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197 tree_expression *lhs = cmd.left_hand_side (); |
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198 |
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199 if (lhs) |
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200 lhs->accept (*this); |
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201 |
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202 os << " = "; |
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203 |
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204 tree_expression *expr = cmd.control_expr (); |
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205 |
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206 if (expr) |
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207 expr->accept (*this); |
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208 |
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209 newline (); |
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210 |
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211 tree_statement_list *list = cmd.body (); |
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212 |
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213 if (list) |
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214 { |
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215 increment_indent_level (); |
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216 list->accept (*this); |
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217 decrement_indent_level (); |
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218 } |
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219 |
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220 indent (); |
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221 |
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222 os << "endfor"; |
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223 } |
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224 |
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225 void |
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226 tree_print_code::visit_complex_for_command (tree_complex_for_command& cmd) |
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227 { |
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228 indent (); |
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229 |
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230 os << "for ["; |
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231 |
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232 tree_argument_list *lhs = cmd.left_hand_side (); |
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233 |
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234 if (lhs) |
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235 lhs->accept (*this); |
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236 |
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237 os << "] = "; |
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238 |
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239 tree_expression *expr = cmd.control_expr (); |
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240 |
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241 if (expr) |
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242 expr->accept (*this); |
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243 |
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244 newline (); |
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245 |
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246 tree_statement_list *list = cmd.body (); |
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247 |
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248 if (list) |
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249 { |
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250 increment_indent_level (); |
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251 list->accept (*this); |
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252 decrement_indent_level (); |
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253 } |
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254 |
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255 indent (); |
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256 |
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257 os << "endfor"; |
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258 } |
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259 |
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260 void |
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261 tree_print_code::visit_octave_user_function (octave_user_function& fcn) |
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262 { |
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263 reset (); |
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264 |
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265 visit_octave_user_function_header (fcn); |
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266 |
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267 tree_statement_list *cmd_list = fcn.body (); |
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268 |
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269 if (cmd_list) |
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270 { |
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271 increment_indent_level (); |
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272 cmd_list->accept (*this); |
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273 decrement_indent_level (); |
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274 } |
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275 |
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276 visit_octave_user_function_trailer (fcn); |
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277 } |
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278 |
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279 void |
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280 tree_print_code::visit_octave_user_function_header (octave_user_function& fcn) |
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281 { |
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282 indent (); |
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283 |
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284 os << "function "; |
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285 |
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286 tree_parameter_list *ret_list = fcn.return_list (); |
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287 |
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288 if (ret_list) |
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289 { |
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290 bool takes_var_return = fcn.takes_var_return (); |
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291 |
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292 int len = ret_list->length (); |
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293 |
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294 if (len > 1 || takes_var_return) |
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295 os << "["; |
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296 |
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297 ret_list->accept (*this); |
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298 |
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299 if (takes_var_return) |
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300 { |
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301 if (len > 0) |
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302 os << ", "; |
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303 |
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304 os << "..."; |
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305 } |
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306 |
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307 if (len > 1 || takes_var_return) |
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308 os << "]"; |
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309 |
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310 os << " = "; |
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311 } |
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312 |
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313 string fcn_name = fcn.function_name (); |
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314 |
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315 os << (fcn_name.empty () ? string ("(empty)") : fcn_name) << " "; |
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316 |
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317 tree_parameter_list *param_list = fcn.parameter_list (); |
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318 |
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319 if (param_list) |
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320 { |
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321 bool takes_varargs = fcn.takes_varargs (); |
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322 |
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323 int len = param_list->length (); |
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324 |
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325 if (len > 0 || takes_varargs) |
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326 os << "("; |
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327 |
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328 param_list->accept (*this); |
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329 |
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330 if (takes_varargs) |
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331 { |
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332 if (len > 0) |
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333 os << ", "; |
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334 |
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335 os << "..."; |
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336 } |
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337 |
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338 if (len > 0 || takes_varargs) |
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339 { |
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340 os << ")"; |
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341 newline (); |
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342 } |
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343 } |
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344 else |
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345 { |
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346 os << "()"; |
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347 newline (); |
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348 } |
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349 } |
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350 |
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351 void |
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352 tree_print_code::visit_octave_user_function_trailer (octave_user_function&) |
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353 { |
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354 indent (); |
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355 |
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356 os << "endfunction"; |
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357 |
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358 newline (); |
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359 } |
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360 |
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361 void |
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362 tree_print_code::visit_identifier (tree_identifier& id) |
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363 { |
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364 indent (); |
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365 |
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366 print_parens (id, "("); |
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367 |
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368 string nm = id.name (); |
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369 os << (nm.empty () ? string ("(empty)") : nm); |
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370 |
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371 print_parens (id, ")"); |
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372 } |
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373 |
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374 void |
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375 tree_print_code::visit_if_clause (tree_if_clause& cmd) |
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376 { |
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377 tree_expression *expr = cmd.condition (); |
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378 |
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379 if (expr) |
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380 expr->accept (*this); |
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381 |
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382 newline (); |
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383 |
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384 increment_indent_level (); |
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385 |
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386 tree_statement_list *list = cmd.commands (); |
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387 |
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388 if (list) |
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389 { |
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390 list->accept (*this); |
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391 |
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392 decrement_indent_level (); |
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393 } |
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394 } |
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395 |
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396 void |
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397 tree_print_code::visit_if_command (tree_if_command& cmd) |
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398 { |
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399 indent (); |
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400 |
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401 os << "if "; |
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402 |
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403 tree_if_command_list *list = cmd.cmd_list (); |
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404 |
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405 if (list) |
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406 list->accept (*this); |
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407 |
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408 indent (); |
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409 |
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410 os << "endif"; |
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411 } |
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412 |
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413 void |
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414 tree_print_code::visit_if_command_list (tree_if_command_list& lst) |
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415 { |
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416 Pix p = lst.first (); |
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417 |
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418 bool first_elt = true; |
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419 |
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420 while (p) |
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421 { |
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422 tree_if_clause *elt = lst (p); |
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423 |
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424 if (elt) |
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425 { |
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426 if (! first_elt) |
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427 { |
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428 indent (); |
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429 |
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430 if (elt->is_else_clause ()) |
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431 os << "else"; |
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432 else |
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433 os << "elseif "; |
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434 } |
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435 |
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436 elt->accept (*this); |
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437 } |
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438 |
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439 first_elt = false; |
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440 lst.next (p); |
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441 } |
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442 } |
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443 |
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444 void |
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445 tree_print_code::visit_index_expression (tree_index_expression& expr) |
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446 { |
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447 indent (); |
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448 |
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449 print_parens (expr, "("); |
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450 |
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451 tree_expression *e= expr.expression (); |
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452 |
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453 if (e) |
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454 e->accept (*this); |
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455 |
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456 tree_argument_list *list = expr.arg_list (); |
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457 |
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458 if (list) |
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459 { |
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460 os << " ("; |
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461 list->accept (*this); |
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462 os << ")"; |
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463 } |
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464 |
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465 print_parens (expr, ")"); |
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466 } |
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467 |
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468 void |
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469 tree_print_code::visit_indirect_ref (tree_indirect_ref& expr) |
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470 { |
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471 indent (); |
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472 |
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473 print_parens (expr, "("); |
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474 |
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475 tree_expression *e = expr.expression (); |
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476 |
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477 if (e) |
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478 e->accept (*this); |
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479 |
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480 os << "." << expr.elt_name (); |
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481 |
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482 print_parens (expr, ")"); |
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483 } |
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484 |
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485 void |
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486 tree_print_code::visit_matrix (tree_matrix& lst) |
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487 { |
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488 indent (); |
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489 |
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490 print_parens (lst, "("); |
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491 |
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492 os << "["; |
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493 |
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494 Pix p = lst.first (); |
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495 |
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496 while (p) |
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497 { |
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498 tree_argument_list *elt = lst (p); |
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499 |
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500 lst.next (p); |
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501 |
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502 if (elt) |
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503 { |
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504 elt->accept (*this); |
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505 |
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506 if (p) |
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507 os << "; "; |
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508 } |
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509 } |
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510 |
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511 os << "]"; |
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512 |
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2961
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513 print_parens (lst, ")"); |
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514 } |
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515 |
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516 void |
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2969
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517 tree_print_code::visit_multi_assignment (tree_multi_assignment& expr) |
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2123
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518 { |
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519 indent (); |
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520 |
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2961
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521 print_parens (expr, "("); |
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522 |
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2969
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523 tree_argument_list *lhs = expr.left_hand_side (); |
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2123
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524 |
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525 if (lhs) |
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526 { |
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527 int len = lhs->length (); |
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528 |
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529 if (len > 1) |
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530 os << "["; |
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531 |
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532 lhs->accept (*this); |
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533 |
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534 if (len > 1) |
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535 os << "]"; |
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536 } |
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537 |
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538 os << " = "; |
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539 |
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2969
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540 tree_expression *rhs = expr.right_hand_side (); |
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2123
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541 |
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542 if (rhs) |
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543 rhs->accept (*this); |
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544 |
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2961
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545 print_parens (expr, ")"); |
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2123
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546 } |
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547 |
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548 void |
|
2620
|
549 tree_print_code::visit_no_op_command (tree_no_op_command& cmd) |
|
|
550 { |
|
|
551 indent (); |
|
|
552 |
|
|
553 os << cmd.original_command (); |
|
|
554 } |
|
|
555 |
|
|
556 void |
|
2123
|
557 tree_print_code::visit_oct_obj (tree_oct_obj&) |
|
|
558 { |
|
|
559 ::error ("visit_oct_obj: internal error"); |
|
|
560 } |
|
|
561 |
|
|
562 void |
|
2372
|
563 tree_print_code::visit_constant (tree_constant& val) |
|
2123
|
564 { |
|
|
565 indent (); |
|
|
566 |
|
2961
|
567 print_parens (val, "("); |
|
2123
|
568 |
|
2942
|
569 val.print_raw (os, true, print_original_text); |
|
2123
|
570 |
|
2961
|
571 print_parens (val, ")"); |
|
2123
|
572 } |
|
|
573 |
|
|
574 void |
|
|
575 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
|
|
576 { |
|
|
577 Pix p = lst.first (); |
|
|
578 |
|
|
579 while (p) |
|
|
580 { |
|
|
581 tree_identifier *elt = lst (p); |
|
|
582 |
|
|
583 lst.next (p); |
|
|
584 |
|
|
585 if (elt) |
|
|
586 { |
|
|
587 elt->accept (*this); |
|
|
588 |
|
|
589 if (p) |
|
|
590 os << ", "; |
|
|
591 } |
|
|
592 } |
|
|
593 } |
|
|
594 |
|
|
595 void |
|
|
596 tree_print_code::visit_plot_command (tree_plot_command& cmd) |
|
|
597 { |
|
|
598 indent (); |
|
|
599 |
|
|
600 int ndim = cmd.num_dimensions (); |
|
|
601 |
|
|
602 switch (ndim) |
|
|
603 { |
|
|
604 case 1: |
|
|
605 os << "replot"; |
|
|
606 break; |
|
|
607 |
|
|
608 case 2: |
|
|
609 os << "gplot"; |
|
|
610 break; |
|
|
611 |
|
|
612 case 3: |
|
|
613 os << "gsplot"; |
|
|
614 break; |
|
|
615 |
|
|
616 default: |
|
|
617 os << "<unkown plot command>"; |
|
|
618 break; |
|
|
619 } |
|
|
620 |
|
|
621 plot_limits *range = cmd.limits (); |
|
|
622 |
|
|
623 if (range) |
|
|
624 range->accept (*this); |
|
|
625 |
|
|
626 subplot_list *plot_list = cmd.subplots (); |
|
|
627 |
|
|
628 if (plot_list) |
|
|
629 plot_list->accept (*this); |
|
|
630 } |
|
|
631 |
|
|
632 void |
|
|
633 tree_print_code::visit_plot_limits (plot_limits& cmd) |
|
|
634 { |
|
|
635 plot_range *x_range = cmd.x_limits (); |
|
|
636 |
|
|
637 if (x_range) |
|
|
638 x_range->accept (*this); |
|
|
639 |
|
|
640 plot_range *y_range = cmd.y_limits (); |
|
|
641 |
|
|
642 if (y_range) |
|
|
643 y_range->accept (*this); |
|
|
644 |
|
|
645 plot_range *z_range = cmd.z_limits (); |
|
|
646 |
|
|
647 if (z_range) |
|
|
648 z_range->accept (*this); |
|
|
649 } |
|
|
650 |
|
|
651 void |
|
|
652 tree_print_code::visit_plot_range (plot_range& cmd) |
|
|
653 { |
|
|
654 os << " ["; |
|
|
655 |
|
|
656 tree_expression *lower = cmd.lower_bound (); |
|
|
657 |
|
|
658 if (lower) |
|
|
659 lower->accept (*this); |
|
|
660 |
|
|
661 os << ":"; |
|
|
662 |
|
|
663 tree_expression *upper = cmd.upper_bound (); |
|
|
664 |
|
|
665 if (upper) |
|
|
666 upper->accept (*this); |
|
|
667 |
|
|
668 os << "]"; |
|
|
669 } |
|
|
670 |
|
|
671 void |
|
|
672 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) |
|
|
673 { |
|
|
674 indent (); |
|
|
675 |
|
2961
|
676 print_parens (expr, "("); |
|
2123
|
677 |
|
2960
|
678 tree_expression *e = expr.operand (); |
|
2123
|
679 |
|
2960
|
680 if (e) |
|
|
681 e->accept (*this); |
|
2123
|
682 |
|
|
683 os << expr.oper (); |
|
|
684 |
|
2961
|
685 print_parens (expr, ")"); |
|
2123
|
686 } |
|
|
687 |
|
|
688 void |
|
|
689 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) |
|
|
690 { |
|
|
691 indent (); |
|
|
692 |
|
2961
|
693 print_parens (expr, "("); |
|
2123
|
694 |
|
|
695 os << expr.oper (); |
|
|
696 |
|
2960
|
697 tree_expression *e = expr.operand (); |
|
2123
|
698 |
|
2960
|
699 if (e) |
|
|
700 e->accept (*this); |
|
2123
|
701 |
|
2961
|
702 print_parens (expr, ")"); |
|
2123
|
703 } |
|
|
704 |
|
|
705 void |
|
|
706 tree_print_code::visit_return_command (tree_return_command&) |
|
|
707 { |
|
|
708 indent (); |
|
|
709 |
|
|
710 os << "return"; |
|
|
711 } |
|
|
712 |
|
|
713 void |
|
|
714 tree_print_code::visit_return_list (tree_return_list& lst) |
|
|
715 { |
|
|
716 Pix p = lst.first (); |
|
|
717 |
|
|
718 while (p) |
|
|
719 { |
|
|
720 tree_index_expression *elt = lst (p); |
|
|
721 |
|
|
722 lst.next (p); |
|
|
723 |
|
|
724 if (elt) |
|
|
725 { |
|
|
726 elt->accept (*this); |
|
|
727 |
|
|
728 if (p) |
|
|
729 os << ", "; |
|
|
730 } |
|
|
731 } |
|
|
732 } |
|
|
733 |
|
|
734 void |
|
2969
|
735 tree_print_code::visit_simple_assignment (tree_simple_assignment& expr) |
|
2123
|
736 { |
|
|
737 indent (); |
|
|
738 |
|
2961
|
739 print_parens (expr, "("); |
|
2123
|
740 |
|
2969
|
741 tree_expression *lhs = expr.left_hand_side (); |
|
2123
|
742 |
|
2969
|
743 if (lhs) |
|
|
744 lhs->accept (*this); |
|
2123
|
745 |
|
2969
|
746 os << " " << expr.oper () << " "; |
|
2123
|
747 |
|
|
748 tree_expression *rhs = expr.right_hand_side (); |
|
|
749 |
|
|
750 if (rhs) |
|
|
751 rhs->accept (*this); |
|
|
752 |
|
2961
|
753 print_parens (expr, ")"); |
|
2123
|
754 } |
|
|
755 |
|
|
756 void |
|
|
757 tree_print_code::visit_statement (tree_statement& stmt) |
|
|
758 { |
|
|
759 tree_command *cmd = stmt.command (); |
|
|
760 |
|
|
761 if (cmd) |
|
|
762 { |
|
|
763 cmd->accept (*this); |
|
|
764 |
|
|
765 if (! stmt.print_result ()) |
|
|
766 os << ";"; |
|
|
767 |
|
|
768 newline (); |
|
|
769 } |
|
|
770 else |
|
|
771 { |
|
|
772 tree_expression *expr = stmt.expression (); |
|
|
773 |
|
|
774 if (expr) |
|
|
775 { |
|
|
776 expr->accept (*this); |
|
|
777 |
|
|
778 if (! stmt.print_result ()) |
|
|
779 os << ";"; |
|
|
780 |
|
|
781 newline (); |
|
|
782 } |
|
|
783 } |
|
|
784 } |
|
|
785 |
|
|
786 void |
|
|
787 tree_print_code::visit_statement_list (tree_statement_list& lst) |
|
|
788 { |
|
|
789 for (Pix p = lst.first (); p != 0; lst.next (p)) |
|
|
790 { |
|
|
791 tree_statement *elt = lst (p); |
|
|
792 |
|
|
793 if (elt) |
|
|
794 elt->accept (*this); |
|
|
795 } |
|
|
796 } |
|
|
797 |
|
|
798 void |
|
|
799 tree_print_code::visit_subplot (subplot& cmd) |
|
|
800 { |
|
|
801 tree_expression *sp_plot_data = cmd.plot_data (); |
|
|
802 |
|
|
803 if (sp_plot_data) |
|
|
804 { |
|
|
805 os << " "; |
|
|
806 |
|
|
807 sp_plot_data->accept (*this); |
|
|
808 } |
|
|
809 |
|
|
810 subplot_using *sp_using_clause = cmd.using_clause (); |
|
|
811 |
|
|
812 if (sp_using_clause) |
|
|
813 sp_using_clause->accept (*this); |
|
|
814 |
|
|
815 tree_expression *sp_title_clause = cmd.title_clause (); |
|
|
816 |
|
|
817 if (sp_title_clause) |
|
|
818 sp_title_clause->accept (*this); |
|
|
819 |
|
|
820 subplot_style *sp_style_clause = cmd.style_clause (); |
|
|
821 |
|
|
822 if (sp_style_clause) |
|
|
823 sp_style_clause->accept (*this); |
|
|
824 } |
|
|
825 |
|
|
826 void |
|
|
827 tree_print_code::visit_subplot_list (subplot_list& lst) |
|
|
828 { |
|
|
829 Pix p = lst.first (); |
|
|
830 |
|
|
831 while (p) |
|
|
832 { |
|
|
833 subplot *elt = lst (p); |
|
|
834 |
|
|
835 lst.next (p); |
|
|
836 |
|
|
837 if (elt) |
|
|
838 { |
|
|
839 elt->accept (*this); |
|
|
840 |
|
|
841 if (p) |
|
|
842 os << ","; |
|
|
843 } |
|
|
844 } |
|
|
845 } |
|
|
846 |
|
|
847 void |
|
|
848 tree_print_code::visit_subplot_style (subplot_style& cmd) |
|
|
849 { |
|
|
850 os << " with " << cmd.style (); |
|
|
851 |
|
|
852 tree_expression *sp_linetype = cmd.linetype (); |
|
|
853 |
|
|
854 if (sp_linetype) |
|
|
855 { |
|
|
856 os << " "; |
|
|
857 |
|
|
858 sp_linetype->accept (*this); |
|
|
859 } |
|
|
860 |
|
|
861 tree_expression *sp_pointtype = cmd.pointtype (); |
|
|
862 |
|
|
863 if (sp_pointtype) |
|
|
864 { |
|
|
865 os << " "; |
|
|
866 |
|
|
867 sp_pointtype->accept (*this); |
|
|
868 } |
|
|
869 } |
|
|
870 |
|
|
871 void |
|
|
872 tree_print_code::visit_subplot_using (subplot_using& cmd) |
|
|
873 { |
|
|
874 os << " using "; |
|
|
875 |
|
|
876 int qual_count = cmd.qualifier_count (); |
|
|
877 |
|
|
878 if (qual_count > 0) |
|
|
879 { |
|
|
880 tree_expression **x = cmd.qualifiers (); |
|
|
881 |
|
|
882 for (int i = 0; i < qual_count; i++) |
|
|
883 { |
|
|
884 if (i > 0) |
|
|
885 os << ":"; |
|
|
886 |
|
|
887 if (x[i]) |
|
|
888 x[i]->accept (*this); |
|
|
889 } |
|
|
890 } |
|
|
891 else |
|
|
892 { |
|
|
893 tree_expression *scanf_fmt = cmd.scanf_format (); |
|
|
894 |
|
|
895 if (scanf_fmt) |
|
|
896 scanf_fmt->accept (*this); |
|
|
897 } |
|
|
898 } |
|
|
899 |
|
|
900 void |
|
2846
|
901 tree_print_code::visit_switch_case (tree_switch_case& cs) |
|
|
902 { |
|
|
903 indent (); |
|
|
904 |
|
|
905 if (cs.is_default_case ()) |
|
|
906 os << "otherwise"; |
|
|
907 else |
|
|
908 os << "case "; |
|
|
909 |
|
|
910 tree_expression *label = cs.case_label (); |
|
|
911 |
|
|
912 if (label) |
|
|
913 label->accept (*this); |
|
|
914 |
|
|
915 newline (); |
|
|
916 |
|
|
917 increment_indent_level (); |
|
|
918 |
|
|
919 tree_statement_list *list = cs.commands (); |
|
|
920 |
|
|
921 if (list) |
|
|
922 { |
|
|
923 list->accept (*this); |
|
|
924 |
|
|
925 decrement_indent_level (); |
|
|
926 } |
|
|
927 } |
|
|
928 |
|
|
929 void |
|
|
930 tree_print_code::visit_switch_case_list (tree_switch_case_list& lst) |
|
|
931 { |
|
|
932 Pix p = lst.first (); |
|
|
933 |
|
|
934 while (p) |
|
|
935 { |
|
|
936 tree_switch_case *elt = lst (p); |
|
|
937 |
|
|
938 if (elt) |
|
|
939 elt->accept (*this); |
|
|
940 |
|
|
941 lst.next (p); |
|
|
942 } |
|
|
943 } |
|
|
944 |
|
|
945 void |
|
|
946 tree_print_code::visit_switch_command (tree_switch_command& cmd) |
|
|
947 { |
|
|
948 indent (); |
|
|
949 |
|
|
950 os << "switch "; |
|
|
951 |
|
|
952 tree_expression *expr = cmd.switch_value (); |
|
|
953 |
|
|
954 if (expr) |
|
|
955 expr->accept (*this); |
|
|
956 |
|
|
957 newline (); |
|
|
958 |
|
|
959 increment_indent_level (); |
|
|
960 |
|
|
961 tree_switch_case_list *list = cmd.case_list (); |
|
|
962 |
|
|
963 if (list) |
|
|
964 list->accept (*this); |
|
|
965 |
|
|
966 indent (); |
|
|
967 |
|
|
968 os << "endswitch"; |
|
|
969 } |
|
|
970 |
|
|
971 void |
|
2123
|
972 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
|
|
973 { |
|
|
974 indent (); |
|
|
975 |
|
|
976 os << "try_catch"; |
|
|
977 |
|
|
978 newline (); |
|
|
979 |
|
|
980 tree_statement_list *try_code = cmd.body (); |
|
|
981 |
|
|
982 if (try_code) |
|
|
983 { |
|
|
984 increment_indent_level (); |
|
|
985 try_code->accept (*this); |
|
|
986 decrement_indent_level (); |
|
|
987 } |
|
|
988 |
|
|
989 indent (); |
|
|
990 |
|
|
991 os << "catch"; |
|
|
992 |
|
|
993 newline (); |
|
|
994 |
|
|
995 tree_statement_list *catch_code = cmd.cleanup (); |
|
|
996 |
|
|
997 if (catch_code) |
|
|
998 { |
|
|
999 increment_indent_level (); |
|
|
1000 catch_code->accept (*this); |
|
|
1001 decrement_indent_level (); |
|
|
1002 } |
|
|
1003 |
|
|
1004 indent (); |
|
|
1005 |
|
|
1006 os << "end_try_catch"; |
|
|
1007 } |
|
|
1008 |
|
|
1009 void |
|
|
1010 tree_print_code::visit_unwind_protect_command |
|
|
1011 (tree_unwind_protect_command& cmd) |
|
|
1012 { |
|
|
1013 indent (); |
|
|
1014 |
|
|
1015 os << "unwind_protect"; |
|
|
1016 |
|
|
1017 newline (); |
|
|
1018 |
|
|
1019 tree_statement_list *unwind_protect_code = cmd.body (); |
|
|
1020 |
|
|
1021 if (unwind_protect_code) |
|
|
1022 { |
|
|
1023 increment_indent_level (); |
|
|
1024 unwind_protect_code->accept (*this); |
|
|
1025 decrement_indent_level (); |
|
|
1026 } |
|
|
1027 |
|
|
1028 indent (); |
|
|
1029 |
|
|
1030 os << "cleanup_code"; |
|
|
1031 |
|
|
1032 newline (); |
|
|
1033 |
|
|
1034 tree_statement_list *cleanup_code = cmd.cleanup (); |
|
|
1035 |
|
|
1036 if (cleanup_code) |
|
|
1037 { |
|
|
1038 increment_indent_level (); |
|
|
1039 cleanup_code->accept (*this); |
|
|
1040 decrement_indent_level (); |
|
|
1041 } |
|
|
1042 |
|
|
1043 indent (); |
|
|
1044 |
|
|
1045 os << "end_unwind_protect"; |
|
|
1046 } |
|
|
1047 |
|
|
1048 void |
|
|
1049 tree_print_code::visit_while_command (tree_while_command& cmd) |
|
|
1050 { |
|
|
1051 indent (); |
|
|
1052 |
|
|
1053 os << "while "; |
|
|
1054 |
|
|
1055 tree_expression *expr = cmd.condition (); |
|
|
1056 |
|
|
1057 if (expr) |
|
|
1058 expr->accept (*this); |
|
|
1059 |
|
|
1060 newline (); |
|
|
1061 |
|
|
1062 tree_statement_list *list = cmd.body (); |
|
|
1063 |
|
|
1064 if (list) |
|
|
1065 { |
|
|
1066 increment_indent_level (); |
|
|
1067 list->accept (*this); |
|
|
1068 decrement_indent_level (); |
|
|
1069 } |
|
|
1070 |
|
|
1071 indent (); |
|
|
1072 |
|
|
1073 os << "endwhile"; |
|
|
1074 } |
|
|
1075 |
|
|
1076 // Current indentation. |
|
|
1077 int tree_print_code::curr_print_indent_level = 0; |
|
|
1078 |
|
|
1079 // Nonzero means we are at the beginning of a line. |
|
|
1080 bool tree_print_code::beginning_of_line = true; |
|
|
1081 |
|
|
1082 // Each print_code() function should call this before printing |
|
|
1083 // anything. |
|
|
1084 // |
|
|
1085 // This doesn't need to be fast, but isn't there a better way? |
|
|
1086 |
|
|
1087 void |
|
|
1088 tree_print_code::indent (void) |
|
|
1089 { |
|
|
1090 assert (curr_print_indent_level >= 0); |
|
|
1091 |
|
|
1092 if (beginning_of_line) |
|
|
1093 { |
|
2900
|
1094 os << prefix; |
|
|
1095 |
|
|
1096 for (int i = 0; i < curr_print_indent_level; i++) |
|
|
1097 os << " "; |
|
|
1098 |
|
2123
|
1099 beginning_of_line = false; |
|
|
1100 } |
|
|
1101 } |
|
|
1102 |
|
|
1103 // All print_code() functions should use this to print new lines. |
|
|
1104 |
|
|
1105 void |
|
|
1106 tree_print_code::newline (void) |
|
|
1107 { |
|
|
1108 os << "\n"; |
|
|
1109 |
|
|
1110 beginning_of_line = true; |
|
|
1111 } |
|
|
1112 |
|
|
1113 // For ressetting print_code state. |
|
|
1114 |
|
|
1115 void |
|
|
1116 tree_print_code::reset (void) |
|
|
1117 { |
|
|
1118 beginning_of_line = true; |
|
|
1119 curr_print_indent_level = 0; |
|
|
1120 } |
|
|
1121 |
|
2961
|
1122 void |
|
|
1123 tree_print_code::print_parens (const tree_expression& expr, const char *txt) |
|
|
1124 { |
|
|
1125 int n = expr.paren_count (); |
|
|
1126 |
|
|
1127 for (int i = 0; i < n; i++) |
|
|
1128 os << txt; |
|
|
1129 } |
|
|
1130 |
|
2123
|
1131 /* |
|
|
1132 ;;; Local Variables: *** |
|
|
1133 ;;; mode: C++ *** |
|
|
1134 ;;; End: *** |
|
|
1135 */ |
