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1 /* |
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2 |
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3 Copyright (C) 1996 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 "pr-output.h" |
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35 #include "pt-pr-code.h" |
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36 |
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37 void |
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38 tree_print_code::visit_argument_list (tree_argument_list& lst) |
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39 { |
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40 Pix p = lst.first (); |
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41 |
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42 while (p) |
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43 { |
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44 tree_expression *elt = lst (p); |
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45 |
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46 lst.next (p); |
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47 |
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48 if (elt) |
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49 { |
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50 elt->accept (*this); |
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51 |
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52 if (p) |
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53 os << ", "; |
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54 } |
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55 } |
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56 } |
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57 |
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58 void |
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59 tree_print_code::visit_binary_expression (tree_binary_expression& expr) |
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60 { |
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61 indent (); |
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62 |
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63 bool in_parens = expr.is_in_parens (); |
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64 |
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65 if (in_parens) |
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66 os << "("; |
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67 |
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68 tree_expression *op1 = expr.lhs (); |
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69 |
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70 if (op1) |
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71 op1->accept (*this); |
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72 |
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73 os << " " << expr.oper () << " "; |
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74 |
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75 tree_expression *op2 = expr.rhs (); |
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76 |
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77 if (op2) |
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78 op2->accept (*this); |
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79 |
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80 if (in_parens) |
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81 os << ")"; |
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82 } |
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83 |
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84 void |
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85 tree_print_code::visit_break_command (tree_break_command&) |
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86 { |
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87 indent (); |
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88 |
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89 os << "break"; |
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90 } |
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91 |
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92 void |
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93 tree_print_code::visit_builtin (tree_builtin& fcn) |
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94 { |
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95 os << fcn.name () |
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96 << " can't be printed because it is a built-in function\n"; |
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97 } |
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98 |
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99 void |
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100 tree_print_code::visit_colon_expression (tree_colon_expression& expr) |
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101 { |
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102 indent (); |
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103 |
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104 bool in_parens = expr.is_in_parens (); |
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105 |
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106 if (in_parens) |
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107 os << "("; |
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108 |
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109 tree_expression *op1 = expr.base (); |
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110 |
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111 if (op1) |
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112 op1->accept (*this); |
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113 |
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114 // Stupid syntax. |
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115 |
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116 tree_expression *op3 = expr.increment (); |
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117 |
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118 if (op3) |
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119 { |
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120 os << ":"; |
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121 op3->accept (*this); |
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122 } |
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123 |
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124 tree_expression *op2 = expr.limit (); |
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125 |
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126 if (op2) |
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127 { |
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128 os << ":"; |
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129 op2->accept (*this); |
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130 } |
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131 |
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132 if (in_parens) |
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133 os << ")"; |
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134 } |
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135 |
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136 void |
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137 tree_print_code::visit_continue_command (tree_continue_command&) |
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138 { |
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139 indent (); |
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140 |
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141 os << "continue"; |
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142 } |
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143 |
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144 void |
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145 tree_print_code::visit_for_command (tree_for_command& cmd) |
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146 { |
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147 indent (); |
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148 |
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149 os << "for "; |
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150 |
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151 tree_index_expression *id = cmd.ident (); |
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152 |
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153 if (id) |
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154 id->accept (*this); |
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155 |
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156 os << " = "; |
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157 |
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158 tree_expression *expr = cmd.control_expr (); |
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159 |
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160 if (expr) |
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161 expr->accept (*this); |
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162 |
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163 newline (); |
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164 |
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165 tree_statement_list *list = cmd.body (); |
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166 |
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167 if (list) |
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168 { |
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169 increment_indent_level (); |
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170 list->accept (*this); |
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171 decrement_indent_level (); |
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172 } |
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173 |
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174 indent (); |
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175 |
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176 os << "endfor"; |
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177 } |
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178 |
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179 void |
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180 tree_print_code::visit_function (tree_function& fcn) |
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181 { |
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182 reset (); |
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183 |
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184 visit_function_header (fcn); |
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185 |
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186 tree_statement_list *cmd_list = fcn.body (); |
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187 |
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188 if (cmd_list) |
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189 { |
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190 increment_indent_level (); |
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191 cmd_list->accept (*this); |
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192 decrement_indent_level (); |
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193 } |
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194 |
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195 visit_function_trailer (fcn); |
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196 } |
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197 |
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198 void |
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199 tree_print_code::visit_function_header (tree_function& fcn) |
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200 { |
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201 indent (); |
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202 |
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203 os << "function "; |
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204 |
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205 tree_parameter_list *ret_list = fcn.return_list (); |
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206 |
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207 if (ret_list) |
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208 { |
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209 bool takes_var_return = fcn.takes_var_return (); |
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210 |
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211 int len = ret_list->length (); |
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212 |
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213 if (len > 1 || takes_var_return) |
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214 os << "["; |
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215 |
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216 ret_list->accept (*this); |
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217 |
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218 if (takes_var_return) |
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219 { |
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220 if (len > 0) |
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221 os << ", "; |
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222 |
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223 os << "..."; |
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224 } |
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225 |
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226 if (len > 1 || takes_var_return) |
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227 os << "]"; |
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228 |
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229 os << " = "; |
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230 } |
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231 |
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232 string fcn_name = fcn.function_name (); |
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233 |
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234 os << (fcn_name.empty () ? string ("(empty)") : fcn_name) << " "; |
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235 |
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236 tree_parameter_list *param_list = fcn.parameter_list (); |
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237 |
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238 if (param_list) |
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239 { |
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240 bool takes_varargs = fcn.takes_varargs (); |
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241 |
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242 int len = param_list->length (); |
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243 |
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244 if (len > 0 || takes_varargs) |
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245 os << "("; |
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246 |
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247 param_list->accept (*this); |
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248 |
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249 if (takes_varargs) |
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250 { |
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251 if (len > 0) |
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252 os << ", "; |
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253 |
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254 os << "..."; |
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255 } |
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256 |
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257 if (len > 0 || takes_varargs) |
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258 { |
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259 os << ")"; |
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260 newline (); |
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261 } |
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262 } |
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263 else |
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264 { |
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265 os << "()"; |
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266 newline (); |
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267 } |
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268 } |
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269 |
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270 void |
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271 tree_print_code::visit_function_trailer (tree_function&) |
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272 { |
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273 indent (); |
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274 |
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275 os << "endfunction"; |
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276 |
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277 newline (); |
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278 } |
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279 |
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280 void |
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281 tree_print_code::visit_global (tree_global& cmd) |
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282 { |
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283 tree_identifier *id = cmd.ident (); |
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284 |
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285 if (id) |
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286 id->accept (*this); |
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287 |
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288 tree_simple_assignment_expression *ass_expr = cmd.assign_expr (); |
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289 |
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290 if (ass_expr) |
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291 ass_expr->accept (*this); |
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292 } |
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293 |
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294 void |
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295 tree_print_code::visit_global_command (tree_global_command& cmd) |
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296 { |
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297 indent (); |
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298 |
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299 os << "global "; |
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300 |
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301 tree_global_init_list *init_list = cmd.initializer_list (); |
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302 |
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303 if (init_list) |
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304 init_list->accept (*this); |
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305 } |
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306 |
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307 void |
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308 tree_print_code::visit_global_init_list (tree_global_init_list& lst) |
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309 { |
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310 Pix p = lst.first (); |
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311 |
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312 while (p) |
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313 { |
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314 tree_global *elt = lst (p); |
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315 |
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316 lst.next (p); |
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317 |
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318 if (elt) |
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319 { |
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320 elt->accept (*this); |
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321 |
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322 if (p) |
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323 os << ", "; |
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324 } |
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325 } |
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326 } |
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327 |
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328 void |
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329 tree_print_code::visit_identifier (tree_identifier& id) |
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330 { |
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331 indent (); |
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332 |
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333 bool in_parens = id.is_in_parens (); |
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334 |
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335 if (in_parens) |
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336 os << "("; |
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337 |
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338 string nm = id.name (); |
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339 os << (nm.empty () ? string ("(empty)") : nm); |
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340 |
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341 if (in_parens) |
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342 os << ")"; |
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343 } |
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344 |
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345 void |
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346 tree_print_code::visit_if_clause (tree_if_clause& cmd) |
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347 { |
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348 tree_expression *expr = cmd.condition (); |
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349 |
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350 if (expr) |
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351 expr->accept (*this); |
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352 |
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353 newline (); |
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354 |
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355 increment_indent_level (); |
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356 |
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357 tree_statement_list *list = cmd.commands (); |
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358 |
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359 if (list) |
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360 { |
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361 list->accept (*this); |
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362 |
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363 decrement_indent_level (); |
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364 } |
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365 } |
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366 |
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367 void |
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368 tree_print_code::visit_if_command (tree_if_command& cmd) |
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369 { |
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370 indent (); |
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371 |
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372 os << "if "; |
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373 |
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374 tree_if_command_list *list = cmd.cmd_list (); |
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375 |
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376 if (list) |
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377 list->accept (*this); |
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378 |
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379 indent (); |
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380 |
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381 os << "endif"; |
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382 } |
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383 |
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384 void |
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385 tree_print_code::visit_if_command_list (tree_if_command_list& lst) |
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386 { |
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387 Pix p = lst.first (); |
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388 |
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389 bool first_elt = true; |
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390 |
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391 while (p) |
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392 { |
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393 tree_if_clause *elt = lst (p); |
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394 |
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395 if (elt) |
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396 { |
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397 if (! first_elt) |
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398 { |
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399 indent (); |
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400 |
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401 if (elt->is_else_clause ()) |
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402 os << "else"; |
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403 else |
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404 os << "elseif "; |
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405 } |
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406 |
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407 elt->accept (*this); |
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408 } |
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409 |
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410 first_elt = false; |
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411 lst.next (p); |
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412 } |
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413 } |
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414 |
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415 void |
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416 tree_print_code::visit_index_expression (tree_index_expression& expr) |
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417 { |
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418 indent (); |
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419 |
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420 bool in_parens = expr.is_in_parens (); |
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421 |
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422 if (in_parens) |
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423 os << "("; |
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424 |
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425 tree_indirect_ref *id = expr.ident (); |
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426 |
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427 if (id) |
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428 id->accept (*this); |
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429 |
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430 tree_argument_list *list = expr.arg_list (); |
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431 |
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432 if (list) |
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433 { |
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434 os << " ("; |
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435 list->accept (*this); |
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436 os << ")"; |
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437 } |
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438 |
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439 if (in_parens) |
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440 os << ")"; |
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441 } |
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442 |
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443 void |
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444 tree_print_code::visit_indirect_ref (tree_indirect_ref& expr) |
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445 { |
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446 indent (); |
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447 |
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448 bool in_parens = expr.is_in_parens (); |
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449 |
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450 if (in_parens) |
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451 os << "("; |
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452 |
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453 // The name of the indirect ref includes the sub-elements. |
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454 |
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455 string nm = expr.name (); |
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456 os << (nm.empty () ? string ("(empty)") : nm); |
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457 |
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458 if (in_parens) |
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459 os << ")"; |
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460 } |
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461 |
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462 void |
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463 tree_print_code::visit_matrix (tree_matrix& lst) |
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464 { |
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465 indent (); |
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466 |
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467 bool in_parens = lst.is_in_parens (); |
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468 |
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469 if (in_parens) |
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470 os << "("; |
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471 |
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472 os << "["; |
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473 |
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474 Pix p = lst.first (); |
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475 |
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476 while (p) |
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477 { |
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478 tree_matrix_row *elt = lst (p); |
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479 |
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480 lst.next (p); |
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481 |
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482 if (elt) |
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483 { |
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484 elt->accept (*this); |
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485 |
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486 if (p) |
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487 os << "; "; |
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488 } |
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489 } |
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490 |
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491 os << "]"; |
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492 |
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493 if (in_parens) |
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494 os << ")"; |
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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_matrix_row (tree_matrix_row& lst) |
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499 { |
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500 Pix p = lst.first (); |
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501 |
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502 while (p) |
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503 { |
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504 tree_expression *elt = lst (p); |
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505 |
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506 lst.next (p); |
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507 |
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508 if (elt) |
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509 { |
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510 elt->accept (*this); |
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511 |
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512 if (p) |
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513 os << ", "; |
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514 } |
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515 } |
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516 } |
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517 |
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518 void |
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519 tree_print_code::visit_multi_assignment_expression |
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520 (tree_multi_assignment_expression& expr) |
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521 { |
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522 indent (); |
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523 |
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524 bool in_parens = expr.is_in_parens (); |
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525 |
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526 if (in_parens) |
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527 os << "("; |
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528 |
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529 tree_return_list *lhs = expr.left_hand_side (); |
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530 |
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531 if (lhs) |
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532 { |
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533 int len = lhs->length (); |
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534 |
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535 if (len > 1) |
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536 os << "["; |
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537 |
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538 lhs->accept (*this); |
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539 |
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540 if (len > 1) |
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541 os << "]"; |
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542 } |
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543 |
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544 os << " = "; |
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545 |
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546 tree_multi_val_ret *rhs = expr.right_hand_side (); |
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547 |
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548 if (rhs) |
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549 rhs->accept (*this); |
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550 |
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551 if (in_parens) |
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552 os << ")"; |
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553 } |
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554 |
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555 void |
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556 tree_print_code::visit_oct_obj (tree_oct_obj&) |
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557 { |
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558 ::error ("visit_oct_obj: internal error"); |
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559 } |
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560 |
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561 void |
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2372
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562 tree_print_code::visit_constant (tree_constant& val) |
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2123
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563 { |
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564 indent (); |
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565 |
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566 bool in_parens = val.is_in_parens (); |
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567 |
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568 if (in_parens) |
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569 os << "("; |
|
|
570 |
|
2530
|
571 val.print (os, true, print_original_text); |
|
2123
|
572 |
|
|
573 if (in_parens) |
|
|
574 os << ")"; |
|
|
575 } |
|
|
576 |
|
|
577 void |
|
|
578 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
|
|
579 { |
|
|
580 Pix p = lst.first (); |
|
|
581 |
|
|
582 while (p) |
|
|
583 { |
|
|
584 tree_identifier *elt = lst (p); |
|
|
585 |
|
|
586 lst.next (p); |
|
|
587 |
|
|
588 if (elt) |
|
|
589 { |
|
|
590 elt->accept (*this); |
|
|
591 |
|
|
592 if (p) |
|
|
593 os << ", "; |
|
|
594 } |
|
|
595 } |
|
|
596 } |
|
|
597 |
|
|
598 void |
|
|
599 tree_print_code::visit_plot_command (tree_plot_command& cmd) |
|
|
600 { |
|
|
601 indent (); |
|
|
602 |
|
|
603 int ndim = cmd.num_dimensions (); |
|
|
604 |
|
|
605 switch (ndim) |
|
|
606 { |
|
|
607 case 1: |
|
|
608 os << "replot"; |
|
|
609 break; |
|
|
610 |
|
|
611 case 2: |
|
|
612 os << "gplot"; |
|
|
613 break; |
|
|
614 |
|
|
615 case 3: |
|
|
616 os << "gsplot"; |
|
|
617 break; |
|
|
618 |
|
|
619 default: |
|
|
620 os << "<unkown plot command>"; |
|
|
621 break; |
|
|
622 } |
|
|
623 |
|
|
624 plot_limits *range = cmd.limits (); |
|
|
625 |
|
|
626 if (range) |
|
|
627 range->accept (*this); |
|
|
628 |
|
|
629 subplot_list *plot_list = cmd.subplots (); |
|
|
630 |
|
|
631 if (plot_list) |
|
|
632 plot_list->accept (*this); |
|
|
633 } |
|
|
634 |
|
|
635 void |
|
|
636 tree_print_code::visit_plot_limits (plot_limits& cmd) |
|
|
637 { |
|
|
638 plot_range *x_range = cmd.x_limits (); |
|
|
639 |
|
|
640 if (x_range) |
|
|
641 x_range->accept (*this); |
|
|
642 |
|
|
643 plot_range *y_range = cmd.y_limits (); |
|
|
644 |
|
|
645 if (y_range) |
|
|
646 y_range->accept (*this); |
|
|
647 |
|
|
648 plot_range *z_range = cmd.z_limits (); |
|
|
649 |
|
|
650 if (z_range) |
|
|
651 z_range->accept (*this); |
|
|
652 } |
|
|
653 |
|
|
654 void |
|
|
655 tree_print_code::visit_plot_range (plot_range& cmd) |
|
|
656 { |
|
|
657 os << " ["; |
|
|
658 |
|
|
659 tree_expression *lower = cmd.lower_bound (); |
|
|
660 |
|
|
661 if (lower) |
|
|
662 lower->accept (*this); |
|
|
663 |
|
|
664 os << ":"; |
|
|
665 |
|
|
666 tree_expression *upper = cmd.upper_bound (); |
|
|
667 |
|
|
668 if (upper) |
|
|
669 upper->accept (*this); |
|
|
670 |
|
|
671 os << "]"; |
|
|
672 } |
|
|
673 |
|
|
674 void |
|
|
675 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) |
|
|
676 { |
|
|
677 indent (); |
|
|
678 |
|
|
679 bool in_parens = expr.is_in_parens (); |
|
|
680 |
|
|
681 if (in_parens) |
|
|
682 os << "("; |
|
|
683 |
|
|
684 tree_identifier *id = expr.ident (); |
|
|
685 |
|
|
686 if (id) |
|
|
687 id->accept (*this); |
|
|
688 |
|
|
689 os << expr.oper (); |
|
|
690 |
|
|
691 if (in_parens) |
|
|
692 os << ")"; |
|
|
693 } |
|
|
694 |
|
|
695 void |
|
|
696 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) |
|
|
697 { |
|
|
698 indent (); |
|
|
699 |
|
|
700 bool in_parens = expr.is_in_parens (); |
|
|
701 |
|
|
702 if (in_parens) |
|
|
703 os << "("; |
|
|
704 |
|
|
705 os << expr.oper (); |
|
|
706 |
|
|
707 tree_identifier *id = expr.ident (); |
|
|
708 |
|
|
709 if (id) |
|
|
710 id->accept (*this); |
|
|
711 |
|
|
712 if (in_parens) |
|
|
713 os << ")"; |
|
|
714 } |
|
|
715 |
|
|
716 void |
|
|
717 tree_print_code::visit_return_command (tree_return_command&) |
|
|
718 { |
|
|
719 indent (); |
|
|
720 |
|
|
721 os << "return"; |
|
|
722 } |
|
|
723 |
|
|
724 void |
|
|
725 tree_print_code::visit_return_list (tree_return_list& lst) |
|
|
726 { |
|
|
727 Pix p = lst.first (); |
|
|
728 |
|
|
729 while (p) |
|
|
730 { |
|
|
731 tree_index_expression *elt = lst (p); |
|
|
732 |
|
|
733 lst.next (p); |
|
|
734 |
|
|
735 if (elt) |
|
|
736 { |
|
|
737 elt->accept (*this); |
|
|
738 |
|
|
739 if (p) |
|
|
740 os << ", "; |
|
|
741 } |
|
|
742 } |
|
|
743 } |
|
|
744 |
|
|
745 void |
|
|
746 tree_print_code::visit_simple_assignment_expression |
|
|
747 (tree_simple_assignment_expression& expr) |
|
|
748 { |
|
|
749 indent (); |
|
|
750 |
|
|
751 bool in_parens = expr.is_in_parens (); |
|
|
752 |
|
|
753 if (in_parens) |
|
|
754 os << "("; |
|
|
755 |
|
|
756 if (! expr.is_ans_assign ()) |
|
|
757 { |
|
|
758 tree_indirect_ref *lhs = expr.left_hand_side (); |
|
|
759 |
|
|
760 if (lhs) |
|
|
761 lhs->accept (*this); |
|
|
762 |
|
|
763 tree_argument_list *index = expr.lhs_index (); |
|
|
764 |
|
|
765 if (index) |
|
|
766 { |
|
|
767 os << " ("; |
|
|
768 index->accept (*this); |
|
|
769 os << ")"; |
|
|
770 } |
|
|
771 |
|
|
772 os << " = "; |
|
|
773 } |
|
|
774 |
|
|
775 tree_expression *rhs = expr.right_hand_side (); |
|
|
776 |
|
|
777 if (rhs) |
|
|
778 rhs->accept (*this); |
|
|
779 |
|
|
780 if (in_parens) |
|
|
781 os << ")"; |
|
|
782 } |
|
|
783 |
|
|
784 void |
|
|
785 tree_print_code::visit_statement (tree_statement& stmt) |
|
|
786 { |
|
|
787 tree_command *cmd = stmt.command (); |
|
|
788 |
|
|
789 if (cmd) |
|
|
790 { |
|
|
791 cmd->accept (*this); |
|
|
792 |
|
|
793 if (! stmt.print_result ()) |
|
|
794 os << ";"; |
|
|
795 |
|
|
796 newline (); |
|
|
797 } |
|
|
798 else |
|
|
799 { |
|
|
800 tree_expression *expr = stmt.expression (); |
|
|
801 |
|
|
802 if (expr) |
|
|
803 { |
|
|
804 expr->accept (*this); |
|
|
805 |
|
|
806 if (! stmt.print_result ()) |
|
|
807 os << ";"; |
|
|
808 |
|
|
809 newline (); |
|
|
810 } |
|
|
811 } |
|
|
812 } |
|
|
813 |
|
|
814 void |
|
|
815 tree_print_code::visit_statement_list (tree_statement_list& lst) |
|
|
816 { |
|
|
817 for (Pix p = lst.first (); p != 0; lst.next (p)) |
|
|
818 { |
|
|
819 tree_statement *elt = lst (p); |
|
|
820 |
|
|
821 if (elt) |
|
|
822 elt->accept (*this); |
|
|
823 } |
|
|
824 } |
|
|
825 |
|
|
826 void |
|
|
827 tree_print_code::visit_subplot (subplot& cmd) |
|
|
828 { |
|
|
829 tree_expression *sp_plot_data = cmd.plot_data (); |
|
|
830 |
|
|
831 if (sp_plot_data) |
|
|
832 { |
|
|
833 os << " "; |
|
|
834 |
|
|
835 sp_plot_data->accept (*this); |
|
|
836 } |
|
|
837 |
|
|
838 subplot_using *sp_using_clause = cmd.using_clause (); |
|
|
839 |
|
|
840 if (sp_using_clause) |
|
|
841 sp_using_clause->accept (*this); |
|
|
842 |
|
|
843 tree_expression *sp_title_clause = cmd.title_clause (); |
|
|
844 |
|
|
845 if (sp_title_clause) |
|
|
846 sp_title_clause->accept (*this); |
|
|
847 |
|
|
848 subplot_style *sp_style_clause = cmd.style_clause (); |
|
|
849 |
|
|
850 if (sp_style_clause) |
|
|
851 sp_style_clause->accept (*this); |
|
|
852 } |
|
|
853 |
|
|
854 void |
|
|
855 tree_print_code::visit_subplot_list (subplot_list& lst) |
|
|
856 { |
|
|
857 Pix p = lst.first (); |
|
|
858 |
|
|
859 while (p) |
|
|
860 { |
|
|
861 subplot *elt = lst (p); |
|
|
862 |
|
|
863 lst.next (p); |
|
|
864 |
|
|
865 if (elt) |
|
|
866 { |
|
|
867 elt->accept (*this); |
|
|
868 |
|
|
869 if (p) |
|
|
870 os << ","; |
|
|
871 } |
|
|
872 } |
|
|
873 } |
|
|
874 |
|
|
875 void |
|
|
876 tree_print_code::visit_subplot_style (subplot_style& cmd) |
|
|
877 { |
|
|
878 os << " with " << cmd.style (); |
|
|
879 |
|
|
880 tree_expression *sp_linetype = cmd.linetype (); |
|
|
881 |
|
|
882 if (sp_linetype) |
|
|
883 { |
|
|
884 os << " "; |
|
|
885 |
|
|
886 sp_linetype->accept (*this); |
|
|
887 } |
|
|
888 |
|
|
889 tree_expression *sp_pointtype = cmd.pointtype (); |
|
|
890 |
|
|
891 if (sp_pointtype) |
|
|
892 { |
|
|
893 os << " "; |
|
|
894 |
|
|
895 sp_pointtype->accept (*this); |
|
|
896 } |
|
|
897 } |
|
|
898 |
|
|
899 void |
|
|
900 tree_print_code::visit_subplot_using (subplot_using& cmd) |
|
|
901 { |
|
|
902 os << " using "; |
|
|
903 |
|
|
904 int qual_count = cmd.qualifier_count (); |
|
|
905 |
|
|
906 if (qual_count > 0) |
|
|
907 { |
|
|
908 tree_expression **x = cmd.qualifiers (); |
|
|
909 |
|
|
910 for (int i = 0; i < qual_count; i++) |
|
|
911 { |
|
|
912 if (i > 0) |
|
|
913 os << ":"; |
|
|
914 |
|
|
915 if (x[i]) |
|
|
916 x[i]->accept (*this); |
|
|
917 } |
|
|
918 } |
|
|
919 else |
|
|
920 { |
|
|
921 tree_expression *scanf_fmt = cmd.scanf_format (); |
|
|
922 |
|
|
923 if (scanf_fmt) |
|
|
924 scanf_fmt->accept (*this); |
|
|
925 } |
|
|
926 } |
|
|
927 |
|
|
928 void |
|
|
929 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
|
|
930 { |
|
|
931 indent (); |
|
|
932 |
|
|
933 os << "try_catch"; |
|
|
934 |
|
|
935 newline (); |
|
|
936 |
|
|
937 tree_statement_list *try_code = cmd.body (); |
|
|
938 |
|
|
939 if (try_code) |
|
|
940 { |
|
|
941 increment_indent_level (); |
|
|
942 try_code->accept (*this); |
|
|
943 decrement_indent_level (); |
|
|
944 } |
|
|
945 |
|
|
946 indent (); |
|
|
947 |
|
|
948 os << "catch"; |
|
|
949 |
|
|
950 newline (); |
|
|
951 |
|
|
952 tree_statement_list *catch_code = cmd.cleanup (); |
|
|
953 |
|
|
954 if (catch_code) |
|
|
955 { |
|
|
956 increment_indent_level (); |
|
|
957 catch_code->accept (*this); |
|
|
958 decrement_indent_level (); |
|
|
959 } |
|
|
960 |
|
|
961 indent (); |
|
|
962 |
|
|
963 os << "end_try_catch"; |
|
|
964 } |
|
|
965 |
|
|
966 void |
|
|
967 tree_print_code::visit_unary_expression (tree_unary_expression& expr) |
|
|
968 { |
|
|
969 indent (); |
|
|
970 |
|
|
971 bool in_parens = expr.is_in_parens (); |
|
|
972 |
|
|
973 if (in_parens) |
|
|
974 os << "("; |
|
|
975 |
|
|
976 tree_expression *op = expr.operand (); |
|
|
977 |
|
2372
|
978 if (expr.is_prefix_op ()) |
|
|
979 { |
|
|
980 os << expr.oper (); |
|
2123
|
981 |
|
|
982 if (op) |
|
|
983 op->accept (*this); |
|
2372
|
984 } |
|
|
985 else |
|
|
986 { |
|
2123
|
987 if (op) |
|
|
988 op->accept (*this); |
|
2372
|
989 |
|
|
990 os << expr.oper (); |
|
2123
|
991 } |
|
|
992 |
|
|
993 if (in_parens) |
|
|
994 os << ")"; |
|
|
995 } |
|
|
996 |
|
|
997 void |
|
|
998 tree_print_code::visit_unwind_protect_command |
|
|
999 (tree_unwind_protect_command& cmd) |
|
|
1000 { |
|
|
1001 indent (); |
|
|
1002 |
|
|
1003 os << "unwind_protect"; |
|
|
1004 |
|
|
1005 newline (); |
|
|
1006 |
|
|
1007 tree_statement_list *unwind_protect_code = cmd.body (); |
|
|
1008 |
|
|
1009 if (unwind_protect_code) |
|
|
1010 { |
|
|
1011 increment_indent_level (); |
|
|
1012 unwind_protect_code->accept (*this); |
|
|
1013 decrement_indent_level (); |
|
|
1014 } |
|
|
1015 |
|
|
1016 indent (); |
|
|
1017 |
|
|
1018 os << "cleanup_code"; |
|
|
1019 |
|
|
1020 newline (); |
|
|
1021 |
|
|
1022 tree_statement_list *cleanup_code = cmd.cleanup (); |
|
|
1023 |
|
|
1024 if (cleanup_code) |
|
|
1025 { |
|
|
1026 increment_indent_level (); |
|
|
1027 cleanup_code->accept (*this); |
|
|
1028 decrement_indent_level (); |
|
|
1029 } |
|
|
1030 |
|
|
1031 indent (); |
|
|
1032 |
|
|
1033 os << "end_unwind_protect"; |
|
|
1034 } |
|
|
1035 |
|
|
1036 void |
|
|
1037 tree_print_code::visit_while_command (tree_while_command& cmd) |
|
|
1038 { |
|
|
1039 indent (); |
|
|
1040 |
|
|
1041 os << "while "; |
|
|
1042 |
|
|
1043 tree_expression *expr = cmd.condition (); |
|
|
1044 |
|
|
1045 if (expr) |
|
|
1046 expr->accept (*this); |
|
|
1047 |
|
|
1048 newline (); |
|
|
1049 |
|
|
1050 tree_statement_list *list = cmd.body (); |
|
|
1051 |
|
|
1052 if (list) |
|
|
1053 { |
|
|
1054 increment_indent_level (); |
|
|
1055 list->accept (*this); |
|
|
1056 decrement_indent_level (); |
|
|
1057 } |
|
|
1058 |
|
|
1059 indent (); |
|
|
1060 |
|
|
1061 os << "endwhile"; |
|
|
1062 } |
|
|
1063 |
|
|
1064 // Current indentation. |
|
|
1065 int tree_print_code::curr_print_indent_level = 0; |
|
|
1066 |
|
|
1067 // Nonzero means we are at the beginning of a line. |
|
|
1068 bool tree_print_code::beginning_of_line = true; |
|
|
1069 |
|
|
1070 // Each print_code() function should call this before printing |
|
|
1071 // anything. |
|
|
1072 // |
|
|
1073 // This doesn't need to be fast, but isn't there a better way? |
|
|
1074 |
|
|
1075 void |
|
|
1076 tree_print_code::indent (void) |
|
|
1077 { |
|
|
1078 assert (curr_print_indent_level >= 0); |
|
|
1079 |
|
|
1080 if (beginning_of_line) |
|
|
1081 { |
|
2530
|
1082 os.form ("%s%*s", prefix.c_str (), curr_print_indent_level, ""); |
|
2123
|
1083 beginning_of_line = false; |
|
|
1084 } |
|
|
1085 } |
|
|
1086 |
|
|
1087 // All print_code() functions should use this to print new lines. |
|
|
1088 |
|
|
1089 void |
|
|
1090 tree_print_code::newline (void) |
|
|
1091 { |
|
|
1092 os << "\n"; |
|
|
1093 |
|
|
1094 beginning_of_line = true; |
|
|
1095 } |
|
|
1096 |
|
|
1097 // For ressetting print_code state. |
|
|
1098 |
|
|
1099 void |
|
|
1100 tree_print_code::reset (void) |
|
|
1101 { |
|
|
1102 beginning_of_line = true; |
|
|
1103 curr_print_indent_level = 0; |
|
|
1104 } |
|
|
1105 |
|
|
1106 /* |
|
|
1107 ;;; Local Variables: *** |
|
|
1108 ;;; mode: C++ *** |
|
|
1109 ;;; End: *** |
|
|
1110 */ |
