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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 "oct-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-mvr.h" |
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44 #include "pt-plot.h" |
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45 #include "pt-pr-code.h" |
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46 |
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47 void |
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48 tree_print_code::visit_argument_list (tree_argument_list& lst) |
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49 { |
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50 Pix p = lst.first (); |
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51 |
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52 while (p) |
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53 { |
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54 tree_expression *elt = lst (p); |
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55 |
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56 lst.next (p); |
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57 |
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58 if (elt) |
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59 { |
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60 elt->accept (*this); |
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61 |
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62 if (p) |
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63 os << ", "; |
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64 } |
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65 } |
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66 } |
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67 |
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68 void |
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69 tree_print_code::visit_binary_expression (tree_binary_expression& expr) |
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70 { |
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71 indent (); |
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72 |
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73 print_parens (expr, "("); |
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74 |
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75 tree_expression *op1 = expr.lhs (); |
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76 |
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77 if (op1) |
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78 op1->accept (*this); |
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79 |
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80 os << " " << expr.oper () << " "; |
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81 |
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82 tree_expression *op2 = expr.rhs (); |
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83 |
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84 if (op2) |
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85 op2->accept (*this); |
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86 |
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87 print_parens (expr, ")"); |
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88 } |
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89 |
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90 void |
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91 tree_print_code::visit_break_command (tree_break_command&) |
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92 { |
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93 indent (); |
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94 |
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95 os << "break"; |
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96 } |
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97 |
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98 void |
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99 tree_print_code::visit_colon_expression (tree_colon_expression& expr) |
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100 { |
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101 indent (); |
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102 |
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103 print_parens (expr, "("); |
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104 |
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105 tree_expression *op1 = expr.base (); |
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106 |
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107 if (op1) |
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108 op1->accept (*this); |
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109 |
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110 // Stupid syntax. |
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111 |
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112 tree_expression *op3 = expr.increment (); |
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113 |
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114 if (op3) |
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115 { |
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116 os << ":"; |
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117 op3->accept (*this); |
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118 } |
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119 |
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120 tree_expression *op2 = expr.limit (); |
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121 |
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122 if (op2) |
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123 { |
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124 os << ":"; |
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125 op2->accept (*this); |
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126 } |
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127 |
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128 print_parens (expr, ")"); |
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129 } |
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130 |
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131 void |
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132 tree_print_code::visit_continue_command (tree_continue_command&) |
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133 { |
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134 indent (); |
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135 |
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136 os << "continue"; |
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137 } |
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138 |
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139 void |
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140 tree_print_code::visit_decl_command (tree_decl_command& cmd) |
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141 { |
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142 indent (); |
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143 |
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144 os << cmd.name () << " "; |
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145 |
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146 tree_decl_init_list *init_list = cmd.initializer_list (); |
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147 |
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148 if (init_list) |
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149 init_list->accept (*this); |
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150 } |
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151 |
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152 void |
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153 tree_print_code::visit_decl_elt (tree_decl_elt& cmd) |
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154 { |
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155 tree_identifier *id = cmd.ident (); |
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156 |
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157 if (id) |
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158 id->accept (*this); |
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159 |
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160 tree_simple_assignment_expression *ass_expr = cmd.assign_expr (); |
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161 |
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162 if (ass_expr) |
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163 ass_expr->accept (*this); |
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164 } |
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165 |
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166 void |
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167 tree_print_code::visit_decl_init_list (tree_decl_init_list& lst) |
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168 { |
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169 Pix p = lst.first (); |
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170 |
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171 while (p) |
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172 { |
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173 tree_decl_elt *elt = lst (p); |
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174 |
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175 lst.next (p); |
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176 |
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177 if (elt) |
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178 { |
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179 elt->accept (*this); |
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180 |
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181 if (p) |
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182 os << ", "; |
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183 } |
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184 } |
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185 } |
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186 |
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187 void |
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188 tree_print_code::visit_for_command (tree_for_command& cmd) |
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189 { |
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190 indent (); |
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191 |
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192 os << "for "; |
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193 |
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194 tree_index_expression *id = cmd.ident (); |
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195 |
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196 if (id) |
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197 id->accept (*this); |
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198 |
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199 os << " = "; |
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200 |
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201 tree_expression *expr = cmd.control_expr (); |
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202 |
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203 if (expr) |
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204 expr->accept (*this); |
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205 |
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206 newline (); |
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207 |
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208 tree_statement_list *list = cmd.body (); |
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209 |
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210 if (list) |
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211 { |
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212 increment_indent_level (); |
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213 list->accept (*this); |
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214 decrement_indent_level (); |
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215 } |
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216 |
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217 indent (); |
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218 |
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219 os << "endfor"; |
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220 } |
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221 |
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222 void |
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223 tree_print_code::visit_octave_user_function (octave_user_function& fcn) |
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224 { |
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225 reset (); |
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226 |
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227 visit_octave_user_function_header (fcn); |
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228 |
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229 tree_statement_list *cmd_list = fcn.body (); |
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230 |
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231 if (cmd_list) |
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232 { |
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233 increment_indent_level (); |
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234 cmd_list->accept (*this); |
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235 decrement_indent_level (); |
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236 } |
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237 |
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238 visit_octave_user_function_trailer (fcn); |
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239 } |
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240 |
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241 void |
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242 tree_print_code::visit_octave_user_function_header (octave_user_function& fcn) |
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243 { |
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244 indent (); |
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245 |
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246 os << "function "; |
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247 |
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248 tree_parameter_list *ret_list = fcn.return_list (); |
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249 |
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250 if (ret_list) |
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251 { |
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252 bool takes_var_return = fcn.takes_var_return (); |
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253 |
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254 int len = ret_list->length (); |
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255 |
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256 if (len > 1 || takes_var_return) |
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257 os << "["; |
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258 |
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259 ret_list->accept (*this); |
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260 |
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261 if (takes_var_return) |
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262 { |
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263 if (len > 0) |
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264 os << ", "; |
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265 |
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266 os << "..."; |
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267 } |
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268 |
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269 if (len > 1 || takes_var_return) |
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270 os << "]"; |
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271 |
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272 os << " = "; |
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273 } |
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274 |
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275 string fcn_name = fcn.function_name (); |
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276 |
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277 os << (fcn_name.empty () ? string ("(empty)") : fcn_name) << " "; |
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278 |
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279 tree_parameter_list *param_list = fcn.parameter_list (); |
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280 |
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281 if (param_list) |
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282 { |
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283 bool takes_varargs = fcn.takes_varargs (); |
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284 |
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285 int len = param_list->length (); |
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286 |
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287 if (len > 0 || takes_varargs) |
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288 os << "("; |
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289 |
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290 param_list->accept (*this); |
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291 |
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292 if (takes_varargs) |
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293 { |
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294 if (len > 0) |
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295 os << ", "; |
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296 |
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297 os << "..."; |
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298 } |
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299 |
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300 if (len > 0 || takes_varargs) |
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301 { |
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302 os << ")"; |
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303 newline (); |
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304 } |
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305 } |
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306 else |
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307 { |
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308 os << "()"; |
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309 newline (); |
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310 } |
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311 } |
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312 |
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313 void |
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314 tree_print_code::visit_octave_user_function_trailer (octave_user_function&) |
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315 { |
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316 indent (); |
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317 |
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318 os << "endfunction"; |
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319 |
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320 newline (); |
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321 } |
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322 |
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323 void |
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324 tree_print_code::visit_identifier (tree_identifier& id) |
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325 { |
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326 indent (); |
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327 |
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328 print_parens (id, "("); |
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329 |
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330 string nm = id.name (); |
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331 os << (nm.empty () ? string ("(empty)") : nm); |
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332 |
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333 print_parens (id, ")"); |
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334 } |
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335 |
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336 void |
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337 tree_print_code::visit_if_clause (tree_if_clause& cmd) |
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338 { |
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339 tree_expression *expr = cmd.condition (); |
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340 |
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341 if (expr) |
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342 expr->accept (*this); |
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343 |
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344 newline (); |
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345 |
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346 increment_indent_level (); |
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347 |
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348 tree_statement_list *list = cmd.commands (); |
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349 |
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350 if (list) |
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351 { |
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352 list->accept (*this); |
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353 |
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354 decrement_indent_level (); |
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355 } |
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356 } |
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357 |
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358 void |
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359 tree_print_code::visit_if_command (tree_if_command& cmd) |
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360 { |
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361 indent (); |
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362 |
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363 os << "if "; |
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364 |
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365 tree_if_command_list *list = cmd.cmd_list (); |
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366 |
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367 if (list) |
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368 list->accept (*this); |
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369 |
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370 indent (); |
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371 |
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372 os << "endif"; |
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373 } |
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374 |
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375 void |
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376 tree_print_code::visit_if_command_list (tree_if_command_list& lst) |
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377 { |
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378 Pix p = lst.first (); |
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379 |
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380 bool first_elt = true; |
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381 |
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382 while (p) |
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383 { |
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384 tree_if_clause *elt = lst (p); |
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385 |
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386 if (elt) |
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387 { |
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388 if (! first_elt) |
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389 { |
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390 indent (); |
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391 |
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392 if (elt->is_else_clause ()) |
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393 os << "else"; |
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394 else |
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395 os << "elseif "; |
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396 } |
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397 |
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398 elt->accept (*this); |
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399 } |
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400 |
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401 first_elt = false; |
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402 lst.next (p); |
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403 } |
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404 } |
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405 |
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406 void |
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407 tree_print_code::visit_index_expression (tree_index_expression& expr) |
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408 { |
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409 indent (); |
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410 |
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411 print_parens (expr, "("); |
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412 |
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413 tree_indirect_ref *id = expr.ident (); |
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414 |
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415 if (id) |
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416 id->accept (*this); |
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417 |
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418 tree_argument_list *list = expr.arg_list (); |
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419 |
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420 if (list) |
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421 { |
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422 os << " ("; |
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423 list->accept (*this); |
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424 os << ")"; |
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425 } |
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426 |
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427 print_parens (expr, ")"); |
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428 } |
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429 |
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430 void |
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431 tree_print_code::visit_indirect_ref (tree_indirect_ref& expr) |
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432 { |
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433 indent (); |
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434 |
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435 print_parens (expr, "("); |
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436 |
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437 // The name of the indirect ref includes the sub-elements. |
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438 |
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439 string nm = expr.name (); |
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440 os << (nm.empty () ? string ("(empty)") : nm); |
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441 |
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442 print_parens (expr, ")"); |
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443 } |
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444 |
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445 void |
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446 tree_print_code::visit_matrix (tree_matrix& lst) |
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447 { |
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448 indent (); |
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449 |
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450 print_parens (lst, "("); |
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451 |
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452 os << "["; |
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453 |
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454 Pix p = lst.first (); |
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455 |
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456 while (p) |
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457 { |
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458 tree_matrix_row *elt = lst (p); |
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459 |
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460 lst.next (p); |
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461 |
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462 if (elt) |
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463 { |
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464 elt->accept (*this); |
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465 |
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466 if (p) |
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467 os << "; "; |
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468 } |
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469 } |
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470 |
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471 os << "]"; |
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472 |
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473 print_parens (lst, ")"); |
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474 } |
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475 |
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476 void |
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477 tree_print_code::visit_matrix_row (tree_matrix_row& lst) |
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478 { |
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479 Pix p = lst.first (); |
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480 |
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481 while (p) |
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482 { |
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483 tree_expression *elt = lst (p); |
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484 |
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485 lst.next (p); |
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486 |
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487 if (elt) |
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488 { |
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489 elt->accept (*this); |
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490 |
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491 if (p) |
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492 os << ", "; |
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493 } |
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494 } |
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495 } |
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496 |
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497 void |
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498 tree_print_code::visit_multi_assignment_expression |
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499 (tree_multi_assignment_expression& expr) |
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500 { |
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501 indent (); |
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502 |
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2961
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503 print_parens (expr, "("); |
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2123
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504 |
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505 tree_return_list *lhs = expr.left_hand_side (); |
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506 |
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507 if (lhs) |
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508 { |
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509 int len = lhs->length (); |
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510 |
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511 if (len > 1) |
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512 os << "["; |
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513 |
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514 lhs->accept (*this); |
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515 |
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516 if (len > 1) |
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517 os << "]"; |
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518 } |
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519 |
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520 os << " = "; |
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521 |
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522 tree_multi_val_ret *rhs = expr.right_hand_side (); |
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523 |
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524 if (rhs) |
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525 rhs->accept (*this); |
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526 |
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2961
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527 print_parens (expr, ")"); |
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2123
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528 } |
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529 |
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530 void |
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2620
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531 tree_print_code::visit_no_op_command (tree_no_op_command& cmd) |
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532 { |
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533 indent (); |
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534 |
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535 os << cmd.original_command (); |
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536 } |
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537 |
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538 void |
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2123
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539 tree_print_code::visit_oct_obj (tree_oct_obj&) |
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540 { |
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541 ::error ("visit_oct_obj: internal error"); |
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542 } |
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543 |
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544 void |
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2372
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545 tree_print_code::visit_constant (tree_constant& val) |
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2123
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546 { |
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547 indent (); |
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548 |
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2961
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549 print_parens (val, "("); |
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2123
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550 |
|
2942
|
551 val.print_raw (os, true, print_original_text); |
|
2123
|
552 |
|
2961
|
553 print_parens (val, ")"); |
|
2123
|
554 } |
|
|
555 |
|
|
556 void |
|
|
557 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
|
|
558 { |
|
|
559 Pix p = lst.first (); |
|
|
560 |
|
|
561 while (p) |
|
|
562 { |
|
|
563 tree_identifier *elt = lst (p); |
|
|
564 |
|
|
565 lst.next (p); |
|
|
566 |
|
|
567 if (elt) |
|
|
568 { |
|
|
569 elt->accept (*this); |
|
|
570 |
|
|
571 if (p) |
|
|
572 os << ", "; |
|
|
573 } |
|
|
574 } |
|
|
575 } |
|
|
576 |
|
|
577 void |
|
|
578 tree_print_code::visit_plot_command (tree_plot_command& cmd) |
|
|
579 { |
|
|
580 indent (); |
|
|
581 |
|
|
582 int ndim = cmd.num_dimensions (); |
|
|
583 |
|
|
584 switch (ndim) |
|
|
585 { |
|
|
586 case 1: |
|
|
587 os << "replot"; |
|
|
588 break; |
|
|
589 |
|
|
590 case 2: |
|
|
591 os << "gplot"; |
|
|
592 break; |
|
|
593 |
|
|
594 case 3: |
|
|
595 os << "gsplot"; |
|
|
596 break; |
|
|
597 |
|
|
598 default: |
|
|
599 os << "<unkown plot command>"; |
|
|
600 break; |
|
|
601 } |
|
|
602 |
|
|
603 plot_limits *range = cmd.limits (); |
|
|
604 |
|
|
605 if (range) |
|
|
606 range->accept (*this); |
|
|
607 |
|
|
608 subplot_list *plot_list = cmd.subplots (); |
|
|
609 |
|
|
610 if (plot_list) |
|
|
611 plot_list->accept (*this); |
|
|
612 } |
|
|
613 |
|
|
614 void |
|
|
615 tree_print_code::visit_plot_limits (plot_limits& cmd) |
|
|
616 { |
|
|
617 plot_range *x_range = cmd.x_limits (); |
|
|
618 |
|
|
619 if (x_range) |
|
|
620 x_range->accept (*this); |
|
|
621 |
|
|
622 plot_range *y_range = cmd.y_limits (); |
|
|
623 |
|
|
624 if (y_range) |
|
|
625 y_range->accept (*this); |
|
|
626 |
|
|
627 plot_range *z_range = cmd.z_limits (); |
|
|
628 |
|
|
629 if (z_range) |
|
|
630 z_range->accept (*this); |
|
|
631 } |
|
|
632 |
|
|
633 void |
|
|
634 tree_print_code::visit_plot_range (plot_range& cmd) |
|
|
635 { |
|
|
636 os << " ["; |
|
|
637 |
|
|
638 tree_expression *lower = cmd.lower_bound (); |
|
|
639 |
|
|
640 if (lower) |
|
|
641 lower->accept (*this); |
|
|
642 |
|
|
643 os << ":"; |
|
|
644 |
|
|
645 tree_expression *upper = cmd.upper_bound (); |
|
|
646 |
|
|
647 if (upper) |
|
|
648 upper->accept (*this); |
|
|
649 |
|
|
650 os << "]"; |
|
|
651 } |
|
|
652 |
|
|
653 void |
|
|
654 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) |
|
|
655 { |
|
|
656 indent (); |
|
|
657 |
|
2961
|
658 print_parens (expr, "("); |
|
2123
|
659 |
|
2960
|
660 tree_expression *e = expr.operand (); |
|
2123
|
661 |
|
2960
|
662 if (e) |
|
|
663 e->accept (*this); |
|
2123
|
664 |
|
|
665 os << expr.oper (); |
|
|
666 |
|
2961
|
667 print_parens (expr, ")"); |
|
2123
|
668 } |
|
|
669 |
|
|
670 void |
|
|
671 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) |
|
|
672 { |
|
|
673 indent (); |
|
|
674 |
|
2961
|
675 print_parens (expr, "("); |
|
2123
|
676 |
|
|
677 os << expr.oper (); |
|
|
678 |
|
2960
|
679 tree_expression *e = expr.operand (); |
|
2123
|
680 |
|
2960
|
681 if (e) |
|
|
682 e->accept (*this); |
|
2123
|
683 |
|
2961
|
684 print_parens (expr, ")"); |
|
2123
|
685 } |
|
|
686 |
|
|
687 void |
|
|
688 tree_print_code::visit_return_command (tree_return_command&) |
|
|
689 { |
|
|
690 indent (); |
|
|
691 |
|
|
692 os << "return"; |
|
|
693 } |
|
|
694 |
|
|
695 void |
|
|
696 tree_print_code::visit_return_list (tree_return_list& lst) |
|
|
697 { |
|
|
698 Pix p = lst.first (); |
|
|
699 |
|
|
700 while (p) |
|
|
701 { |
|
|
702 tree_index_expression *elt = lst (p); |
|
|
703 |
|
|
704 lst.next (p); |
|
|
705 |
|
|
706 if (elt) |
|
|
707 { |
|
|
708 elt->accept (*this); |
|
|
709 |
|
|
710 if (p) |
|
|
711 os << ", "; |
|
|
712 } |
|
|
713 } |
|
|
714 } |
|
|
715 |
|
|
716 void |
|
|
717 tree_print_code::visit_simple_assignment_expression |
|
|
718 (tree_simple_assignment_expression& expr) |
|
|
719 { |
|
|
720 indent (); |
|
|
721 |
|
2961
|
722 print_parens (expr, "("); |
|
2123
|
723 |
|
|
724 if (! expr.is_ans_assign ()) |
|
|
725 { |
|
|
726 tree_indirect_ref *lhs = expr.left_hand_side (); |
|
|
727 |
|
|
728 if (lhs) |
|
|
729 lhs->accept (*this); |
|
|
730 |
|
|
731 tree_argument_list *index = expr.lhs_index (); |
|
|
732 |
|
|
733 if (index) |
|
|
734 { |
|
|
735 os << " ("; |
|
|
736 index->accept (*this); |
|
|
737 os << ")"; |
|
|
738 } |
|
|
739 |
|
2878
|
740 os << " " << expr.oper () << " "; |
|
2123
|
741 } |
|
|
742 |
|
|
743 tree_expression *rhs = expr.right_hand_side (); |
|
|
744 |
|
|
745 if (rhs) |
|
|
746 rhs->accept (*this); |
|
|
747 |
|
2961
|
748 print_parens (expr, ")"); |
|
2123
|
749 } |
|
|
750 |
|
|
751 void |
|
|
752 tree_print_code::visit_statement (tree_statement& stmt) |
|
|
753 { |
|
|
754 tree_command *cmd = stmt.command (); |
|
|
755 |
|
|
756 if (cmd) |
|
|
757 { |
|
|
758 cmd->accept (*this); |
|
|
759 |
|
|
760 if (! stmt.print_result ()) |
|
|
761 os << ";"; |
|
|
762 |
|
|
763 newline (); |
|
|
764 } |
|
|
765 else |
|
|
766 { |
|
|
767 tree_expression *expr = stmt.expression (); |
|
|
768 |
|
|
769 if (expr) |
|
|
770 { |
|
|
771 expr->accept (*this); |
|
|
772 |
|
|
773 if (! stmt.print_result ()) |
|
|
774 os << ";"; |
|
|
775 |
|
|
776 newline (); |
|
|
777 } |
|
|
778 } |
|
|
779 } |
|
|
780 |
|
|
781 void |
|
|
782 tree_print_code::visit_statement_list (tree_statement_list& lst) |
|
|
783 { |
|
|
784 for (Pix p = lst.first (); p != 0; lst.next (p)) |
|
|
785 { |
|
|
786 tree_statement *elt = lst (p); |
|
|
787 |
|
|
788 if (elt) |
|
|
789 elt->accept (*this); |
|
|
790 } |
|
|
791 } |
|
|
792 |
|
|
793 void |
|
|
794 tree_print_code::visit_subplot (subplot& cmd) |
|
|
795 { |
|
|
796 tree_expression *sp_plot_data = cmd.plot_data (); |
|
|
797 |
|
|
798 if (sp_plot_data) |
|
|
799 { |
|
|
800 os << " "; |
|
|
801 |
|
|
802 sp_plot_data->accept (*this); |
|
|
803 } |
|
|
804 |
|
|
805 subplot_using *sp_using_clause = cmd.using_clause (); |
|
|
806 |
|
|
807 if (sp_using_clause) |
|
|
808 sp_using_clause->accept (*this); |
|
|
809 |
|
|
810 tree_expression *sp_title_clause = cmd.title_clause (); |
|
|
811 |
|
|
812 if (sp_title_clause) |
|
|
813 sp_title_clause->accept (*this); |
|
|
814 |
|
|
815 subplot_style *sp_style_clause = cmd.style_clause (); |
|
|
816 |
|
|
817 if (sp_style_clause) |
|
|
818 sp_style_clause->accept (*this); |
|
|
819 } |
|
|
820 |
|
|
821 void |
|
|
822 tree_print_code::visit_subplot_list (subplot_list& lst) |
|
|
823 { |
|
|
824 Pix p = lst.first (); |
|
|
825 |
|
|
826 while (p) |
|
|
827 { |
|
|
828 subplot *elt = lst (p); |
|
|
829 |
|
|
830 lst.next (p); |
|
|
831 |
|
|
832 if (elt) |
|
|
833 { |
|
|
834 elt->accept (*this); |
|
|
835 |
|
|
836 if (p) |
|
|
837 os << ","; |
|
|
838 } |
|
|
839 } |
|
|
840 } |
|
|
841 |
|
|
842 void |
|
|
843 tree_print_code::visit_subplot_style (subplot_style& cmd) |
|
|
844 { |
|
|
845 os << " with " << cmd.style (); |
|
|
846 |
|
|
847 tree_expression *sp_linetype = cmd.linetype (); |
|
|
848 |
|
|
849 if (sp_linetype) |
|
|
850 { |
|
|
851 os << " "; |
|
|
852 |
|
|
853 sp_linetype->accept (*this); |
|
|
854 } |
|
|
855 |
|
|
856 tree_expression *sp_pointtype = cmd.pointtype (); |
|
|
857 |
|
|
858 if (sp_pointtype) |
|
|
859 { |
|
|
860 os << " "; |
|
|
861 |
|
|
862 sp_pointtype->accept (*this); |
|
|
863 } |
|
|
864 } |
|
|
865 |
|
|
866 void |
|
|
867 tree_print_code::visit_subplot_using (subplot_using& cmd) |
|
|
868 { |
|
|
869 os << " using "; |
|
|
870 |
|
|
871 int qual_count = cmd.qualifier_count (); |
|
|
872 |
|
|
873 if (qual_count > 0) |
|
|
874 { |
|
|
875 tree_expression **x = cmd.qualifiers (); |
|
|
876 |
|
|
877 for (int i = 0; i < qual_count; i++) |
|
|
878 { |
|
|
879 if (i > 0) |
|
|
880 os << ":"; |
|
|
881 |
|
|
882 if (x[i]) |
|
|
883 x[i]->accept (*this); |
|
|
884 } |
|
|
885 } |
|
|
886 else |
|
|
887 { |
|
|
888 tree_expression *scanf_fmt = cmd.scanf_format (); |
|
|
889 |
|
|
890 if (scanf_fmt) |
|
|
891 scanf_fmt->accept (*this); |
|
|
892 } |
|
|
893 } |
|
|
894 |
|
|
895 void |
|
2846
|
896 tree_print_code::visit_switch_case (tree_switch_case& cs) |
|
|
897 { |
|
|
898 indent (); |
|
|
899 |
|
|
900 if (cs.is_default_case ()) |
|
|
901 os << "otherwise"; |
|
|
902 else |
|
|
903 os << "case "; |
|
|
904 |
|
|
905 tree_expression *label = cs.case_label (); |
|
|
906 |
|
|
907 if (label) |
|
|
908 label->accept (*this); |
|
|
909 |
|
|
910 newline (); |
|
|
911 |
|
|
912 increment_indent_level (); |
|
|
913 |
|
|
914 tree_statement_list *list = cs.commands (); |
|
|
915 |
|
|
916 if (list) |
|
|
917 { |
|
|
918 list->accept (*this); |
|
|
919 |
|
|
920 decrement_indent_level (); |
|
|
921 } |
|
|
922 } |
|
|
923 |
|
|
924 void |
|
|
925 tree_print_code::visit_switch_case_list (tree_switch_case_list& lst) |
|
|
926 { |
|
|
927 Pix p = lst.first (); |
|
|
928 |
|
|
929 while (p) |
|
|
930 { |
|
|
931 tree_switch_case *elt = lst (p); |
|
|
932 |
|
|
933 if (elt) |
|
|
934 elt->accept (*this); |
|
|
935 |
|
|
936 lst.next (p); |
|
|
937 } |
|
|
938 } |
|
|
939 |
|
|
940 void |
|
|
941 tree_print_code::visit_switch_command (tree_switch_command& cmd) |
|
|
942 { |
|
|
943 indent (); |
|
|
944 |
|
|
945 os << "switch "; |
|
|
946 |
|
|
947 tree_expression *expr = cmd.switch_value (); |
|
|
948 |
|
|
949 if (expr) |
|
|
950 expr->accept (*this); |
|
|
951 |
|
|
952 newline (); |
|
|
953 |
|
|
954 increment_indent_level (); |
|
|
955 |
|
|
956 tree_switch_case_list *list = cmd.case_list (); |
|
|
957 |
|
|
958 if (list) |
|
|
959 list->accept (*this); |
|
|
960 |
|
|
961 indent (); |
|
|
962 |
|
|
963 os << "endswitch"; |
|
|
964 } |
|
|
965 |
|
|
966 void |
|
2123
|
967 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
|
|
968 { |
|
|
969 indent (); |
|
|
970 |
|
|
971 os << "try_catch"; |
|
|
972 |
|
|
973 newline (); |
|
|
974 |
|
|
975 tree_statement_list *try_code = cmd.body (); |
|
|
976 |
|
|
977 if (try_code) |
|
|
978 { |
|
|
979 increment_indent_level (); |
|
|
980 try_code->accept (*this); |
|
|
981 decrement_indent_level (); |
|
|
982 } |
|
|
983 |
|
|
984 indent (); |
|
|
985 |
|
|
986 os << "catch"; |
|
|
987 |
|
|
988 newline (); |
|
|
989 |
|
|
990 tree_statement_list *catch_code = cmd.cleanup (); |
|
|
991 |
|
|
992 if (catch_code) |
|
|
993 { |
|
|
994 increment_indent_level (); |
|
|
995 catch_code->accept (*this); |
|
|
996 decrement_indent_level (); |
|
|
997 } |
|
|
998 |
|
|
999 indent (); |
|
|
1000 |
|
|
1001 os << "end_try_catch"; |
|
|
1002 } |
|
|
1003 |
|
|
1004 void |
|
|
1005 tree_print_code::visit_unwind_protect_command |
|
|
1006 (tree_unwind_protect_command& cmd) |
|
|
1007 { |
|
|
1008 indent (); |
|
|
1009 |
|
|
1010 os << "unwind_protect"; |
|
|
1011 |
|
|
1012 newline (); |
|
|
1013 |
|
|
1014 tree_statement_list *unwind_protect_code = cmd.body (); |
|
|
1015 |
|
|
1016 if (unwind_protect_code) |
|
|
1017 { |
|
|
1018 increment_indent_level (); |
|
|
1019 unwind_protect_code->accept (*this); |
|
|
1020 decrement_indent_level (); |
|
|
1021 } |
|
|
1022 |
|
|
1023 indent (); |
|
|
1024 |
|
|
1025 os << "cleanup_code"; |
|
|
1026 |
|
|
1027 newline (); |
|
|
1028 |
|
|
1029 tree_statement_list *cleanup_code = cmd.cleanup (); |
|
|
1030 |
|
|
1031 if (cleanup_code) |
|
|
1032 { |
|
|
1033 increment_indent_level (); |
|
|
1034 cleanup_code->accept (*this); |
|
|
1035 decrement_indent_level (); |
|
|
1036 } |
|
|
1037 |
|
|
1038 indent (); |
|
|
1039 |
|
|
1040 os << "end_unwind_protect"; |
|
|
1041 } |
|
|
1042 |
|
|
1043 void |
|
|
1044 tree_print_code::visit_while_command (tree_while_command& cmd) |
|
|
1045 { |
|
|
1046 indent (); |
|
|
1047 |
|
|
1048 os << "while "; |
|
|
1049 |
|
|
1050 tree_expression *expr = cmd.condition (); |
|
|
1051 |
|
|
1052 if (expr) |
|
|
1053 expr->accept (*this); |
|
|
1054 |
|
|
1055 newline (); |
|
|
1056 |
|
|
1057 tree_statement_list *list = cmd.body (); |
|
|
1058 |
|
|
1059 if (list) |
|
|
1060 { |
|
|
1061 increment_indent_level (); |
|
|
1062 list->accept (*this); |
|
|
1063 decrement_indent_level (); |
|
|
1064 } |
|
|
1065 |
|
|
1066 indent (); |
|
|
1067 |
|
|
1068 os << "endwhile"; |
|
|
1069 } |
|
|
1070 |
|
|
1071 // Current indentation. |
|
|
1072 int tree_print_code::curr_print_indent_level = 0; |
|
|
1073 |
|
|
1074 // Nonzero means we are at the beginning of a line. |
|
|
1075 bool tree_print_code::beginning_of_line = true; |
|
|
1076 |
|
|
1077 // Each print_code() function should call this before printing |
|
|
1078 // anything. |
|
|
1079 // |
|
|
1080 // This doesn't need to be fast, but isn't there a better way? |
|
|
1081 |
|
|
1082 void |
|
|
1083 tree_print_code::indent (void) |
|
|
1084 { |
|
|
1085 assert (curr_print_indent_level >= 0); |
|
|
1086 |
|
|
1087 if (beginning_of_line) |
|
|
1088 { |
|
2900
|
1089 os << prefix; |
|
|
1090 |
|
|
1091 for (int i = 0; i < curr_print_indent_level; i++) |
|
|
1092 os << " "; |
|
|
1093 |
|
2123
|
1094 beginning_of_line = false; |
|
|
1095 } |
|
|
1096 } |
|
|
1097 |
|
|
1098 // All print_code() functions should use this to print new lines. |
|
|
1099 |
|
|
1100 void |
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1101 tree_print_code::newline (void) |
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1102 { |
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1103 os << "\n"; |
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1104 |
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1105 beginning_of_line = true; |
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1106 } |
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1107 |
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1108 // For ressetting print_code state. |
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1109 |
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1110 void |
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1111 tree_print_code::reset (void) |
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1112 { |
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1113 beginning_of_line = true; |
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1114 curr_print_indent_level = 0; |
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1115 } |
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1116 |
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2961
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1117 void |
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1118 tree_print_code::print_parens (const tree_expression& expr, const char *txt) |
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1119 { |
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1120 int n = expr.paren_count (); |
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1121 |
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1122 for (int i = 0; i < n; i++) |
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1123 os << txt; |
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1124 } |
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1125 |
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2123
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1126 /* |
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1127 ;;; Local Variables: *** |
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1128 ;;; mode: C++ *** |
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1129 ;;; End: *** |
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1130 */ |
