Mercurial > octave
annotate libinterp/corefcn/call-stack.h @ 24362:3fc24b792a24
avoid including symtab.h, symscope.h, or symrec.h unnecessarily
* main-window.cc, workspace-view.cc, call-stack.cc, call-stack.h,
defun-int.h, input.cc, load-save.h, symscope.h, symtab.h, variables.h,
ov-fcn-inline.h, ov-fcn.h, ov-usr-fcn.cc, ov-usr-fcn.h, lex.h,
oct-lvalue.h, parse.h, pt-arg-list.h, pt-array-list.h, pt-assign.h,
pt-binop.h, pt-cbinop.h, pt-cell.h, pt-cmd.h, pt-colon.h, pt-const.h,
pt-decl.h, pt-eval.h, pt-except.h, pt-exp.h, pt-fcn-handle.h,
pt-idx.h, pt-jit.h, pt-jump.h, pt-loop.h, pt-mat.h, pt-misc.h,
pt-select.h, pt-stmt.h, pt-unop.h, token.cc, token.h:
Where possible, use forward declarations for symbol_table,
symbol_scope, and symbol_record. Don't include symtab.h, symscope.h,
or symrec.h unless needed. Use symbol_record::context_id instead of
symbol_table::context_id or symbol_scope::context_id. Delete typedefs
for symbol_table::context_id and symbol_scope::context_id.
author | John W. Eaton <jwe@octave.org> |
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date | Tue, 05 Dec 2017 17:09:24 -0500 |
parents | 8bcfddad15ec |
children | 194eb4bd202b |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 1993-2017 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 |
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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. |
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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. |
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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, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if ! defined (octave_call_stack_h) |
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24 #define octave_call_stack_h 1 |
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25 |
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26 #include "octave-config.h" |
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27 |
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28 #include <deque> |
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29 #include <string> |
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30 |
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31 class octave_function; |
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32 class octave_map; |
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33 class octave_user_code; |
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34 class octave_user_script; |
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35 |
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36 #include "symscope.h" |
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37 |
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38 namespace octave |
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39 { |
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40 class interpreter; |
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41 |
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42 class |
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43 OCTINTERP_API |
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44 call_stack |
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45 { |
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46 public: |
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47 |
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48 class stack_frame |
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49 { |
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50 public: |
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51 |
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52 friend class call_stack; |
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53 |
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54 stack_frame (octave_function *fcn = nullptr, |
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55 const symbol_scope& scope = symbol_scope (), |
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56 symbol_record::context_id context = 0, size_t prev = 0) |
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57 : m_fcn (fcn), m_line (-1), m_column (-1), m_scope (scope), |
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58 m_context (context), m_prev (prev) |
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59 { } |
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60 |
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61 stack_frame (const stack_frame& elt) |
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62 : m_fcn (elt.m_fcn), m_line (elt.m_line), m_column (elt.m_column), |
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63 m_scope (elt.m_scope), m_context (elt.m_context), m_prev (elt.m_prev) |
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64 { } |
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65 |
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66 int line (void) const { return m_line; } |
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67 |
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68 int column (void) const { return m_column; } |
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69 |
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70 std::string fcn_file_name (void) const; |
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71 |
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72 std::string fcn_name (bool print_subfn = true) const; |
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73 |
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74 bool operator == (const stack_frame& rhs) const; |
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75 |
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76 private: |
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77 |
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78 octave_function *m_fcn; |
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79 int m_line; |
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80 int m_column; |
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81 symbol_scope m_scope; |
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82 symbol_record::context_id m_context; |
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83 size_t m_prev; |
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84 }; |
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85 |
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86 typedef std::deque<stack_frame>::iterator iterator; |
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87 typedef std::deque<stack_frame>::const_iterator const_iterator; |
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88 |
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89 typedef std::deque<stack_frame>::reverse_iterator reverse_iterator; |
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90 typedef std::deque<stack_frame>::const_reverse_iterator const_reverse_iterator; |
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91 |
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92 call_stack (interpreter& interp); |
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93 |
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94 // Current function (top of stack). |
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95 octave_function * current (void) const |
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96 { |
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97 octave_function *retval = nullptr; |
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98 |
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99 if (! cs.empty ()) |
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100 { |
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101 const stack_frame& elt = cs[curr_frame]; |
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102 retval = elt.m_fcn; |
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103 } |
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104 |
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105 return retval; |
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106 } |
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107 |
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108 // Current line in current function. |
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109 int current_line (void) const; |
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110 |
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111 // Current column in current function. |
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112 int current_column (void) const; |
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113 |
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114 // Caller function, may be built-in. |
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116 octave_function * caller (void) const |
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117 { |
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118 return curr_frame > 1 ? cs[curr_frame-1].m_fcn : cs[0].m_fcn; |
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119 } |
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120 |
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121 size_t current_frame (void) const { return curr_frame; } |
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122 |
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123 size_t size (void) const { return cs.size (); } |
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124 |
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125 size_t num_user_code_frames (octave_idx_type& curr_user_frame) const; |
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126 |
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127 symbol_scope current_scope (void) const |
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128 { |
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129 return (curr_frame > 0 && curr_frame < cs.size () |
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130 ? cs[curr_frame].m_scope : symbol_scope ()); |
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131 } |
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132 |
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133 symbol_record::context_id current_context (void) const |
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134 { |
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135 return (curr_frame > 0 && curr_frame < cs.size () |
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136 ? cs[curr_frame].m_context : 0); |
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137 } |
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138 |
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139 // Function at location N on the call stack (N == 0 is current), may |
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140 // be built-in. |
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141 octave_function * element (size_t n) |
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142 { |
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143 octave_function *retval = nullptr; |
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144 |
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145 if (cs.size () > n) |
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146 { |
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147 stack_frame& elt = cs[n]; |
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148 retval = elt.m_fcn; |
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149 } |
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150 |
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151 return retval; |
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152 } |
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153 |
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154 // User code caller. |
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155 octave_user_code * caller_user_code (size_t nskip = 0) const; |
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156 |
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157 // Line in user code caller. |
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158 int caller_user_code_line (void) const; |
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159 |
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160 // Column in user code caller. |
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161 int caller_user_code_column (void) const; |
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162 |
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163 // Current function that we are debugging. |
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164 octave_user_code * debug_user_code (void) const; |
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165 |
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166 // Line number in current function that we are debugging. |
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167 int debug_user_code_line (void) const; |
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168 |
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169 // Column number in current function that we are debugging. |
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170 int debug_user_code_column (void) const; |
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171 |
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172 // Return TRUE if all elements on the call stack are scripts. |
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173 bool all_scripts (void) const; |
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174 |
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175 void push (octave_function *fcn); |
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176 void push (octave_function *fcn, const symbol_scope& scope, |
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177 symbol_record::context_id context); |
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178 |
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179 void push (void) |
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180 { |
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181 push (nullptr); |
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182 } |
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183 |
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184 void push (const symbol_scope& scope, symbol_record::context_id context) |
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185 { |
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186 push (nullptr, scope, context); |
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187 } |
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188 |
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189 void set_location (int l, int c) |
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190 { |
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191 if (! cs.empty ()) |
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192 { |
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193 stack_frame& elt = cs.back (); |
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194 |
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195 elt.m_line = l; |
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196 elt.m_column = c; |
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197 } |
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198 } |
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199 |
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200 void set_line (int l) |
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201 { |
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202 if (! cs.empty ()) |
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203 { |
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204 stack_frame& elt = cs.back (); |
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205 |
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206 elt.m_line = l; |
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207 } |
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208 } |
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209 |
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210 void set_column (int c) |
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211 { |
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212 if (! cs.empty ()) |
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213 { |
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214 stack_frame& elt = cs.back (); |
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215 |
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216 elt.m_column = c; |
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217 } |
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218 } |
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219 |
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220 bool goto_frame (size_t n = 0, bool verbose = false); |
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221 |
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222 void restore_frame (size_t n) |
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223 { |
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224 goto_frame (n); |
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225 } |
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226 |
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227 bool goto_frame_relative (int n, bool verbose = false); |
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228 |
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229 void goto_caller_frame (void); |
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230 |
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231 void goto_base_frame (void); |
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232 |
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233 std::list<call_stack::stack_frame> |
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234 backtrace_frames (size_t nskip, octave_idx_type& curr_user_frame) const; |
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235 |
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236 std::list<call_stack::stack_frame> |
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237 backtrace_frames (size_t nskip = 0) const |
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238 { |
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239 octave_idx_type curr_user_frame = -1; |
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240 |
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241 return backtrace_frames (nskip, curr_user_frame); |
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242 } |
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243 |
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244 octave_map backtrace (size_t nskip, octave_idx_type& curr_user_frame, |
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245 bool print_subfn = true) const; |
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246 |
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247 octave_map backtrace (size_t nskip = 0); |
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248 |
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249 octave_map empty_backtrace (void) const; |
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250 |
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251 void pop (void); |
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252 |
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253 void clear (void) { cs.clear (); } |
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254 |
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255 private: |
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256 |
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257 // The current call stack. |
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258 std::deque<stack_frame> cs; |
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259 |
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260 size_t curr_frame; |
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261 |
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262 interpreter& m_interpreter; |
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263 }; |
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264 } |
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265 |
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266 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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267 |
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268 OCTAVE_DEPRECATED (4.4, "use 'octave::call_stack' instead") |
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269 typedef octave::call_stack octave_call_stack; |
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270 |
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271 #endif |
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272 |
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273 #endif |