Mercurial > octave
annotate libinterp/parse-tree/pt-stmt.h @ 23220:092078913d54
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 22 Feb 2017 12:58:07 -0500 |
parents | 334119c390b3 3ac9f9ecfae5 |
children | c452180ab672 |
rev | line source |
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2982 | 1 /* |
2 | |
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3 Copyright (C) 1996-2017 John W. Eaton |
2982 | 4 |
5 This file is part of Octave. | |
6 | |
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 |
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9 the Free Software Foundation; either version 3 of the License, or |
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10 (at your option) any later version. |
2982 | 11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
2982 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
2982 | 20 |
21 */ | |
22 | |
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23 #if ! defined (octave_pt_stmt_h) |
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24 #define octave_pt_stmt_h 1 |
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26 #include "octave-config.h" |
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27 |
2982 | 28 class octave_value_list; |
29 | |
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30 #include <deque> |
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31 |
4219 | 32 #include "base-list.h" |
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33 #include "bp-table.h" |
3665 | 34 #include "comment-list.h" |
7336 | 35 #include "symtab.h" |
14899 | 36 #include "pt.h" |
3665 | 37 |
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38 namespace octave |
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39 { |
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40 class tree_command; |
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41 class tree_expression; |
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43 class tree_walker; |
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44 |
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45 // A statement is either a command to execute or an expression to |
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46 // evaluate. |
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48 class tree_statement : public tree |
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49 { |
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50 public: |
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52 tree_statement (void) |
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53 : cmd (0), expr (0), comm (0) { } |
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55 tree_statement (tree_command *c, octave_comment_list *cl) |
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56 : cmd (c), expr (0), comm (cl) { } |
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58 tree_statement (tree_expression *e, octave_comment_list *cl) |
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59 : cmd (0), expr (e), comm (cl) { } |
2982 | 60 |
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61 // No copying! |
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62 |
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63 tree_statement (const tree_statement&) = delete; |
2982 | 64 |
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65 tree_statement& operator = (const tree_statement&) = delete; |
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66 |
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67 ~tree_statement (void); |
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69 void set_print_flag (bool print_flag); |
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70 |
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71 bool print_result (void); |
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72 |
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73 bool is_command (void) const { return cmd != 0; } |
2982 | 74 |
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75 bool is_expression (void) const { return expr != 0; } |
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76 |
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77 void set_breakpoint (const std::string& condition); |
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78 |
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79 void delete_breakpoint (void); |
2982 | 80 |
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81 bool is_breakpoint (bool check_valid = false) const; |
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82 std::string bp_cond () const; |
2982 | 83 |
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84 int line (void) const; |
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85 int column (void) const; |
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87 void set_location (int l, int c); |
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88 |
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89 void echo_code (void); |
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90 |
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91 tree_command *command (void) { return cmd; } |
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92 |
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93 tree_expression *expression (void) { return expr; } |
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94 |
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95 octave_comment_list *comment_text (void) { return comm; } |
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97 bool is_null_statement (void) const { return ! (cmd || expr || comm); } |
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98 |
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99 bool is_end_of_fcn_or_script (void) const; |
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101 bool is_end_of_file (void) const; |
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103 // Allow modification of this statement. Note that there is no |
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104 // checking. If you use these, are you sure you knwo what you are |
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105 // doing? |
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107 void set_command (tree_command *c) { cmd = c; } |
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109 void set_expression (tree_expression *e) { expr = e; } |
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111 tree_statement *dup (symbol_table::scope_id scope, |
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112 symbol_table::context_id context) const; |
2982 | 113 |
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114 void accept (tree_walker& tw); |
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116 private: |
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118 // Only one of cmd or expr can be valid at once. |
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120 // Command to execute. |
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121 tree_command *cmd; |
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123 // Expression to evaluate. |
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124 tree_expression *expr; |
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126 // Comment associated with this statement. |
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127 octave_comment_list *comm; |
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128 }; |
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130 // A list of statements to evaluate. |
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132 class tree_statement_list : public octave::base_list<tree_statement *> |
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133 { |
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134 public: |
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136 tree_statement_list (void) |
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137 : function_body (false), anon_function_body (false), |
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138 script_body (false) { } |
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139 |
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140 tree_statement_list (tree_statement *s) |
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141 : function_body (false), anon_function_body (false), |
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142 script_body (false) { append (s); } |
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144 // No copying! |
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146 tree_statement_list (const tree_statement_list&) = delete; |
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147 |
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148 tree_statement_list& operator = (const tree_statement_list&) = delete; |
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150 ~tree_statement_list (void) |
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151 { |
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152 while (! empty ()) |
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153 { |
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154 iterator p = begin (); |
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155 delete *p; |
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156 erase (p); |
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157 } |
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158 } |
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160 void mark_as_function_body (void) { function_body = true; } |
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161 |
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162 void mark_as_anon_function_body (void) { anon_function_body = true; } |
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164 void mark_as_script_body (void) { script_body = true; } |
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165 |
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166 bool is_function_body (void) const { return function_body; } |
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167 |
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168 bool is_anon_function_body (void) const { return anon_function_body; } |
2982 | 169 |
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170 bool is_script_body (void) const { return script_body; } |
3770 | 171 |
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172 int set_breakpoint (int line, const std::string& condition); |
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173 |
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174 void delete_breakpoint (int line); |
3770 | 175 |
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176 octave_value_list list_breakpoints (void); |
3770 | 177 |
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178 std::list<bp_type> breakpoints_and_conds (void); |
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179 |
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180 bp_table::intmap add_breakpoint (const std::string& file, |
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181 const bp_table::intmap& line, |
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182 const std::string& condition); |
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183 |
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184 bp_table::intmap remove_all_breakpoints (const std::string& file); |
3770 | 185 |
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186 tree_statement_list *dup (symbol_table::scope_id scope, |
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187 symbol_table::context_id context) const; |
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188 |
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189 void accept (tree_walker& tw); |
5861 | 190 |
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191 private: |
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193 // Does this list of statements make up the body of a function? |
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194 bool function_body; |
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196 // Does this list of statements make up the body of a function? |
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197 bool anon_function_body; |
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199 // Does this list of statements make up the body of a script? |
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200 bool script_body; |
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201 }; |
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202 } |
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204 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
2988 | 205 |
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206 OCTAVE_DEPRECATED ("use 'octave::tree_statement' instead") |
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207 typedef octave::tree_statement tree_statement; |
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209 OCTAVE_DEPRECATED ("use 'octave::tree_statement_list' instead") |
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210 typedef octave::tree_statement_list tree_statement_list; |
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212 #endif | |
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213 |
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214 #endif |