Mercurial > octave
annotate libinterp/parse-tree/pt-stmt.h @ 27923:bd51beb6205e
update formatting of copyright notices
* Use <https://octave.org/copyright/> instead of
<https://octave.org/COPYRIGHT.html/>.
* For consistency with other comments in the Octave sources, use
C++-style comments for copyright blocks in C and C++ files.
* Use delimiters above and below copyright blocks that are appropriate
for the language used in the file.
* Eliminate extra spacing inside copyright blocks.
* lex.ll (looks_like_copyright): Also allow newlines and carriage
returns before the word "Copyright".
* scripts/mk-doc.pl (gethelp): Also skip empty comment lines.
* bp-table.cc, type.m: Adjust tests.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 08 Jan 2020 11:59:41 -0500 |
parents | 1891570abac8 |
children | c20b7290c778 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1996-2020 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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26 #if ! defined (octave_pt_stmt_h) |
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27 #define octave_pt_stmt_h 1 |
2982 | 28 |
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29 #include "octave-config.h" |
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30 |
2982 | 31 class octave_value_list; |
32 | |
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33 #include <deque> |
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34 |
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36 #include "bp-table.h" |
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37 #include "pt.h" |
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38 #include "pt-walk.h" |
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40 class event_manager; |
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41 |
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42 namespace octave |
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43 { |
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44 class comment_list; |
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45 class tree_command; |
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46 class tree_evaluator; |
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47 class tree_expression; |
2982 | 48 |
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49 // A statement is either a command to execute or an expression to |
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50 // evaluate. |
2982 | 51 |
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52 class tree_statement : public tree |
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53 { |
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54 public: |
2982 | 55 |
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56 tree_statement (void) |
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57 : m_command (nullptr), m_expression (nullptr), |
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58 m_comment_list (nullptr) { } |
2982 | 59 |
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60 tree_statement (tree_command *c, comment_list *cl) |
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61 : m_command (c), m_expression (nullptr), m_comment_list (cl) { } |
2982 | 62 |
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63 tree_statement (tree_expression *e, comment_list *cl) |
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64 : m_command (nullptr), m_expression (e), m_comment_list (cl) { } |
2982 | 65 |
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66 // No copying! |
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67 |
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68 tree_statement (const tree_statement&) = delete; |
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70 tree_statement& operator = (const tree_statement&) = delete; |
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71 |
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72 ~tree_statement (void); |
2982 | 73 |
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74 void set_print_flag (bool print_flag); |
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75 |
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76 bool print_result (void); |
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77 |
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78 bool is_command (void) const { return m_command != nullptr; } |
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80 bool is_expression (void) const { return m_expression != nullptr; } |
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81 |
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82 void set_breakpoint (const std::string& condition); |
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83 |
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84 void delete_breakpoint (void); |
2982 | 85 |
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86 bool is_breakpoint (void) const; |
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87 |
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88 bool is_active_breakpoint (tree_evaluator& tw) const; |
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89 |
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90 std::string bp_cond () const; |
2982 | 91 |
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92 int line (void) const; |
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93 int column (void) const; |
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95 void set_location (int l, int c); |
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96 |
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97 void echo_code (const std::string& prefix); |
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98 |
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99 tree_command * command (void) { return m_command; } |
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100 |
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101 tree_expression * expression (void) { return m_expression; } |
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102 |
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103 comment_list * comment_text (void) { return m_comment_list; } |
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105 bool is_null_statement (void) const |
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106 { |
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107 return ! (m_command || m_expression || m_comment_list); |
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108 } |
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109 |
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110 bool is_end_of_fcn_or_script (void) const; |
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112 bool is_end_of_file (void) const; |
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114 // Allow modification of this statement. Note that there is no |
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115 // checking. If you use these, are you sure you knwo what you are |
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116 // doing? |
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118 void set_command (tree_command *c) { m_command = c; } |
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120 void set_expression (tree_expression *e) { m_expression = e; } |
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122 void accept (tree_walker& tw) |
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123 { |
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124 tw.visit_statement (*this); |
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125 } |
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127 private: |
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129 // Only one of cmd or expr can be valid at once. |
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131 // Command to execute. |
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132 tree_command *m_command; |
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134 // Expression to evaluate. |
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135 tree_expression *m_expression; |
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137 // Comment associated with this statement. |
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138 comment_list *m_comment_list; |
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139 }; |
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141 // A list of statements to evaluate. |
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143 class tree_statement_list : public base_list<tree_statement *> |
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144 { |
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145 public: |
2982 | 146 |
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147 tree_statement_list (void) |
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148 : m_function_body (false), m_anon_function_body (false), |
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149 m_script_body (false) { } |
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150 |
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151 tree_statement_list (tree_statement *s) |
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152 : m_function_body (false), m_anon_function_body (false), |
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153 m_script_body (false) { append (s); } |
2982 | 154 |
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155 // No copying! |
2982 | 156 |
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157 tree_statement_list (const tree_statement_list&) = delete; |
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158 |
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159 tree_statement_list& operator = (const tree_statement_list&) = delete; |
2982 | 160 |
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161 ~tree_statement_list (void) |
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162 { |
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163 while (! empty ()) |
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164 { |
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165 auto p = begin (); |
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166 delete *p; |
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167 erase (p); |
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168 } |
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169 } |
2982 | 170 |
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171 void mark_as_function_body (void) { m_function_body = true; } |
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172 |
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173 void mark_as_anon_function_body (void) { m_anon_function_body = true; } |
7736 | 174 |
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175 void mark_as_script_body (void) { m_script_body = true; } |
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176 |
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177 bool is_function_body (void) const { return m_function_body; } |
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178 |
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179 bool is_anon_function_body (void) const { return m_anon_function_body; } |
2982 | 180 |
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181 bool is_script_body (void) const { return m_script_body; } |
3770 | 182 |
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183 int set_breakpoint (int line, const std::string& condition); |
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184 |
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185 void delete_breakpoint (int line); |
3770 | 186 |
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187 octave_value_list list_breakpoints (void); |
3770 | 188 |
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189 std::list<bp_type> breakpoints_and_conds (void); |
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190 |
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191 bp_table::intmap add_breakpoint (event_manager& evmgr, |
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192 const std::string& file, |
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193 const bp_table::intmap& line, |
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194 const std::string& condition); |
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195 |
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196 bp_table::intmap remove_all_breakpoints (event_manager& evmgr, |
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197 const std::string& file); |
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199 void accept (tree_walker& tw) |
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200 { |
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201 tw.visit_statement_list (*this); |
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202 } |
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204 private: |
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206 // Does this list of statements make up the body of a function? |
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207 bool m_function_body; |
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209 // Does this list of statements make up the body of a function? |
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210 bool m_anon_function_body; |
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212 // Does this list of statements make up the body of a script? |
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213 bool m_script_body; |
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214 }; |
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215 } |
7736 | 216 |
2982 | 217 #endif |