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