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annotate libinterp/corefcn/interpreter.h @ 24734:5d8c4cbc56d7

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don't use singleton pattern for child_list * child-list.h, child-list.cc: Don't use singleton pattern. * interpreter.h, interpreter.cc (interpreter::m_child_list): New data member. (interpreter::get_child_list): New method. * interpreter-private.h, interpreter-private.cc (__get_child_list__): New function. * pager.cc, sighandlers.cc, toplev.cc: Access child_list through interpreter.
author John W. Eaton <jwe@octave.org>
date Sun, 11 Feb 2018 11:17:34 -0500
parents 46440078d73b
children 3695c2cd69b8
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1 /*
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2
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3 Copyright (C) 2002-2017 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 <https://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_interpreter_h)
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24 #define octave_interpreter_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 <string>
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29
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30 #include "child-list.h"
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31 #include "quit.h"
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32 #include "str-vec.h"
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33
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34 #include "dynamic-ld.h"
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35 #include "environment.h"
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36 #include "gtk-manager.h"
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37 #include "help.h"
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38 #include "load-path.h"
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39 #include "oct-stream.h"
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40 #include "ov-classdef.h"
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41 #include "ov-typeinfo.h"
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42 #include "pt-eval.h"
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43 #include "symtab.h"
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44 #include "url-handle-manager.h"
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45
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46 extern OCTINTERP_API bool quit_allowed;
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47
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48 // TRUE means we are ready to interpret commands, but not everything
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49 // is ready for interactive use.
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50 extern OCTINTERP_API bool octave_interpreter_ready;
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51
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52 // TRUE means we've processed all the init code and we are good to go.
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53 extern OCTINTERP_API bool octave_initialized;
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54
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55 namespace octave
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56 {
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57 class profiler;
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58 class call_stack;
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59 class child_list;
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60 class tree_evaluator;
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61
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62 // The application object contains a pointer to the current
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63 // interpreter and the interpreter contains a pointer back to the
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64 // application context so we need a forward declaration for one (or
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65 // both) of them...
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66
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67 class application;
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68
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69 class OCTINTERP_API interpreter
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70 {
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71 public:
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72
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73 // Create an interpreter object and perform basic initialization.
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74
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75 interpreter (application *app_context = nullptr);
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76
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77 // No copying, at least not yet...
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78
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79 interpreter (const interpreter&) = delete;
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80
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81 interpreter& operator = (const interpreter&) = delete;
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82
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83 // Clean up the interpreter object.
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84
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85 ~interpreter (void);
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86
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87 void intern_nargin (octave_idx_type nargs);
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88
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89 // If creating an embedded interpreter, you may inhibit reading
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90 // the command history file by calling initialize_history with
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91 // read_history_file = false prior to calling initialize.
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92
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93 void initialize_history (bool read_history_file = false);
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94
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95 // If creating an embedded interpreter, you may inhibit setting
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96 // the default compiled-in path by calling intialize_load_path
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97 // with set_initial_path = false prior calling initialize. After
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98 // that, you can add directories to the load path to set up a
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99 // custom path.
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100
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101 void initialize_load_path (bool set_initial_path = true);
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102
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103 // Load command line history, set the load path.
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104
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105 void initialize (void);
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106
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107 // Initialize the interpreter (if not already done by an explicit
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108 // call to intialize), execute startup files, --eval option code,
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109 // script files, and/or interactive commands.
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110
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111 int execute (void);
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112
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113 bool interactive (void) const
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114 {
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115 return m_interactive;
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116 }
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117
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118 void interactive (bool arg)
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119 {
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120 m_interactive = arg;
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121 }
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122
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123 void read_site_files (bool flag)
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124 {
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125 m_read_site_files = flag;
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126 }
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127
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128 void read_init_files (bool flag)
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129 {
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130 m_read_init_files = flag;
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131 }
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132
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133 void verbose (bool flag)
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134 {
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135 m_verbose = flag;
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136 }
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137
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138 void inhibit_startup_message (bool flag)
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139 {
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140 m_inhibit_startup_message = flag;
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141 }
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142
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143 bool initialized (void) const
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144 {
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145 return m_initialized;
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146 }
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147
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148 environment& get_environment (void)
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149 {
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diff changeset
150 return m_environment;
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diff changeset
151 }
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diff changeset
152
23721
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diff changeset
153 help_system& get_help_system (void)
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154 {
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diff changeset
155 return m_help_system;
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diff changeset
156 }
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diff changeset
157
23627
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diff changeset
158 dynamic_loader& get_dynamic_loader (void)
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diff changeset
159 {
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diff changeset
160 return m_dynamic_loader;
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diff changeset
161 }
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diff changeset
162
23438
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diff changeset
163 load_path& get_load_path (void)
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diff changeset
164 {
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165 return m_load_path;
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diff changeset
166 }
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parents: 23220
diff changeset
167
23599
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diff changeset
168 symbol_table& get_symbol_table (void)
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diff changeset
169 {
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diff changeset
170 return m_symbol_table;
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171 }
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172
24540
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diff changeset
173 type_info& get_type_info (void)
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diff changeset
174 {
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diff changeset
175 return m_type_info;
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diff changeset
176 }
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177
24361
8bcfddad15ec use shared_ptr to manage symbol_scope objects
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diff changeset
178 symbol_scope get_current_scope (void);
8bcfddad15ec use shared_ptr to manage symbol_scope objects
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parents: 24270
diff changeset
179 symbol_scope require_current_scope (const std::string& who);
23609
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diff changeset
180
23553
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diff changeset
181 call_stack& get_call_stack (void);
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182
23753
c3828bd031cd move profiler inside evaluator and inside octave namespace
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diff changeset
183 profiler& get_profiler (void);
c3828bd031cd move profiler inside evaluator and inside octave namespace
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diff changeset
184
23532
084245f9bd03 pass reference to evaluator to octave_function call methods
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diff changeset
185 tree_evaluator& get_evaluator (void);
084245f9bd03 pass reference to evaluator to octave_function call methods
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diff changeset
186
23738
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diff changeset
187 stream_list& get_stream_list (void);
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diff changeset
188
24734
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diff changeset
189 child_list& get_child_list (void)
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diff changeset
190 {
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diff changeset
191 return m_child_list;
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192 }
5d8c4cbc56d7 don't use singleton pattern for child_list
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193
23742
1f0daaf81955 don't use singleton for ch_manager, rename to url_handle_manager
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diff changeset
194 url_handle_manager& get_url_handle_manager (void);
1f0daaf81955 don't use singleton for ch_manager, rename to url_handle_manager
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195
23651
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diff changeset
196 cdef_manager& get_cdef_manager (void)
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diff changeset
197 {
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diff changeset
198 return m_cdef_manager;
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diff changeset
199 }
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200
23774
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diff changeset
201 gtk_manager& get_gtk_manager (void)
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diff changeset
202 {
41795b504a8b don't use singleton for gtk_manager
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diff changeset
203 return m_gtk_manager;
41795b504a8b don't use singleton for gtk_manager
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diff changeset
204 }
41795b504a8b don't use singleton for gtk_manager
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diff changeset
205
23703
6eb5f6199a5a move mlock, munlock, and mislocked to interpreter class
John W. Eaton <jwe@octave.org>
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diff changeset
206 void mlock (void);
6eb5f6199a5a move mlock, munlock, and mislocked to interpreter class
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diff changeset
207
6eb5f6199a5a move mlock, munlock, and mislocked to interpreter class
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diff changeset
208 void munlock (const std::string& nm);
6eb5f6199a5a move mlock, munlock, and mislocked to interpreter class
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diff changeset
209
6eb5f6199a5a move mlock, munlock, and mislocked to interpreter class
John W. Eaton <jwe@octave.org>
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diff changeset
210 bool mislocked (const std::string& nm);
6eb5f6199a5a move mlock, munlock, and mislocked to interpreter class
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diff changeset
211
23110
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
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diff changeset
212 static void recover_from_exception (void);
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
213
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
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diff changeset
214 static void add_atexit_function (const std::string& fname);
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
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diff changeset
215
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
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diff changeset
216 static bool remove_atexit_function (const std::string& fname);
22094
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diff changeset
217
23511
232c8d69d934 manage interpreter instance in interpreter object
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diff changeset
218 static interpreter * the_interpreter (void) { return instance; }
232c8d69d934 manage interpreter instance in interpreter object
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diff changeset
219
22094
9203833cab7d move new interpreter class to separate file
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diff changeset
220 private:
9203833cab7d move new interpreter class to separate file
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diff changeset
221
23511
232c8d69d934 manage interpreter instance in interpreter object
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diff changeset
222 // The interpreter instance; Currently it is only possible to
24538
2b273df71aa0 allow experimenting with thread_local storage
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diff changeset
223 // have one, so OCTAVE_THREAD_LOCAL will normally be defined to be
2b273df71aa0 allow experimenting with thread_local storage
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diff changeset
224 // empty. Eventually we would like to allow multiple interpreters
2b273df71aa0 allow experimenting with thread_local storage
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diff changeset
225 // to be active at once, but they will still be limited to one per
2b273df71aa0 allow experimenting with thread_local storage
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diff changeset
226 // thread. When that is possible, OCTAVE_THREAD_LOCAL can be
2b273df71aa0 allow experimenting with thread_local storage
John W. Eaton <jwe@octave.org>
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diff changeset
227 // replaced by the C++ thread_local keyword. For now, use a macro
2b273df71aa0 allow experimenting with thread_local storage
John W. Eaton <jwe@octave.org>
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diff changeset
228 // to allow experimenting with thread_local storage.
2b273df71aa0 allow experimenting with thread_local storage
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diff changeset
229
2b273df71aa0 allow experimenting with thread_local storage
John W. Eaton <jwe@octave.org>
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diff changeset
230 OCTAVE_THREAD_LOCAL static interpreter *instance;
23511
232c8d69d934 manage interpreter instance in interpreter object
John W. Eaton <jwe@octave.org>
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diff changeset
231
23110
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
232 static std::list<std::string> atexit_functions;
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
John W. Eaton <jwe@octave.org>
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diff changeset
233
23102
373771419d51 refactor interpreter::execute
John W. Eaton <jwe@octave.org>
parents: 23092
diff changeset
234 void display_startup_message (void) const;
22094
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
235
23102
373771419d51 refactor interpreter::execute
John W. Eaton <jwe@octave.org>
parents: 23092
diff changeset
236 int execute_startup_files (void) const;
22094
9203833cab7d move new interpreter class to separate file
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parents:
diff changeset
237
23102
373771419d51 refactor interpreter::execute
John W. Eaton <jwe@octave.org>
parents: 23092
diff changeset
238 int execute_eval_option_code (void);
373771419d51 refactor interpreter::execute
John W. Eaton <jwe@octave.org>
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diff changeset
239
373771419d51 refactor interpreter::execute
John W. Eaton <jwe@octave.org>
parents: 23092
diff changeset
240 int execute_command_line_file (void);
22094
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
241
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
242 int main_loop (void);
9203833cab7d move new interpreter class to separate file
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parents:
diff changeset
243
23087
9f406f0b36da rework clean_up_and_exit (bug #50068)
John W. Eaton <jwe@octave.org>
parents: 23084
diff changeset
244 void cleanup (void);
22157
c5842206aaea maint: Strip trailing whitespace from source files.
John W. Eaton <jwe@octave.org>
parents: 22094
diff changeset
245
22094
9203833cab7d move new interpreter class to separate file
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parents:
diff changeset
246 application *m_app_context;
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
247
23719
69a111259a2c eliminate some global variables
John W. Eaton <jwe@octave.org>
parents: 23703
diff changeset
248 environment m_environment;
69a111259a2c eliminate some global variables
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parents: 23703
diff changeset
249
23721
b2d55b52ee51 new class to manage help system and associated variables
John W. Eaton <jwe@octave.org>
parents: 23719
diff changeset
250 help_system m_help_system;
b2d55b52ee51 new class to manage help system and associated variables
John W. Eaton <jwe@octave.org>
parents: 23719
diff changeset
251
23627
0a6e87804cab don't use singleton pattern for dynamic_loader class
John W. Eaton <jwe@octave.org>
parents: 23615
diff changeset
252 dynamic_loader m_dynamic_loader;
0a6e87804cab don't use singleton pattern for dynamic_loader class
John W. Eaton <jwe@octave.org>
parents: 23615
diff changeset
253
23599
5cb3a2bb5e1e don't use singleton for symbol_table
John W. Eaton <jwe@octave.org>
parents: 23553
diff changeset
254 load_path m_load_path;
22196
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 22157
diff changeset
255
24540
46440078d73b don't use singleton for octave_value_typeinfo
John W. Eaton <jwe@octave.org>
parents: 24538
diff changeset
256 type_info m_type_info;
46440078d73b don't use singleton for octave_value_typeinfo
John W. Eaton <jwe@octave.org>
parents: 24538
diff changeset
257
23599
5cb3a2bb5e1e don't use singleton for symbol_table
John W. Eaton <jwe@octave.org>
parents: 23553
diff changeset
258 symbol_table m_symbol_table;
5cb3a2bb5e1e don't use singleton for symbol_table
John W. Eaton <jwe@octave.org>
parents: 23553
diff changeset
259
23630
8a47d4735655 avoid memory leak in interpreter
John W. Eaton <jwe@octave.org>
parents: 23627
diff changeset
260 tree_evaluator m_evaluator;
23438
d24d01273bd0 eliminate load-path singleton
John W. Eaton <jwe@octave.org>
parents: 23220
diff changeset
261
23738
8acd390d16c9 don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
parents: 23723
diff changeset
262 stream_list m_stream_list;
8acd390d16c9 don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
parents: 23723
diff changeset
263
24734
5d8c4cbc56d7 don't use singleton pattern for child_list
John W. Eaton <jwe@octave.org>
parents: 24540
diff changeset
264 child_list m_child_list;
5d8c4cbc56d7 don't use singleton pattern for child_list
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parents: 24540
diff changeset
265
23742
1f0daaf81955 don't use singleton for ch_manager, rename to url_handle_manager
John W. Eaton <jwe@octave.org>
parents: 23738
diff changeset
266 url_handle_manager m_url_handle_manager;
1f0daaf81955 don't use singleton for ch_manager, rename to url_handle_manager
John W. Eaton <jwe@octave.org>
parents: 23738
diff changeset
267
23651
5c6cceef132b don't use singleton for cdef_manager object
John W. Eaton <jwe@octave.org>
parents: 23630
diff changeset
268 cdef_manager m_cdef_manager;
5c6cceef132b don't use singleton for cdef_manager object
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parents: 23630
diff changeset
269
23774
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John W. Eaton <jwe@octave.org>
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diff changeset
270 gtk_manager m_gtk_manager;
41795b504a8b don't use singleton for gtk_manager
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diff changeset
271
22094
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diff changeset
272 // TRUE means this is an interactive interpreter (forced or not).
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
273 bool m_interactive;
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
274
23111
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
275 bool m_read_site_files;
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
276
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
277 bool m_read_init_files;
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
278
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
279 bool m_verbose;
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
280
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
281 bool m_inhibit_startup_message;
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
282
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
283 bool m_load_path_initialized;
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
284
252975fdc444 more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents: 23110
diff changeset
285 bool m_history_initialized;
23117
17a3567a7b01 separate final interpreter initialization from execution
John W. Eaton <jwe@octave.org>
parents: 23111
diff changeset
286
17a3567a7b01 separate final interpreter initialization from execution
John W. Eaton <jwe@octave.org>
parents: 23111
diff changeset
287 bool m_initialized;
23723
ab8831d346c1 revamp echo command and move related variables inside tree_evaluator class
John W. Eaton <jwe@octave.org>
parents: 23721
diff changeset
288
ab8831d346c1 revamp echo command and move related variables inside tree_evaluator class
John W. Eaton <jwe@octave.org>
parents: 23721
diff changeset
289 void maximum_braindamage (void);
22094
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
290 };
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
291 }
9203833cab7d move new interpreter class to separate file
John W. Eaton <jwe@octave.org>
parents:
diff changeset
292
23110
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23106
diff changeset
293 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS)
af48d8be62b3 move recover_from_exception and atexit functions inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 23106
diff changeset
294
23615
be7b884ac589 use version number in OCTAVE_DEPRECATED macro
John W. Eaton <jwe@octave.org>
parents: 23609
diff changeset
295 OCTAVE_DEPRECATED (4.4, "use 'octave::interpreter::recover_from_exception' instead")
23110
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296 static inline void
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297 recover_from_exception (void)
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298 {
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299 octave::interpreter::recover_from_exception ();
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300 }
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301
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302 OCTAVE_DEPRECATED (4.4, "use 'octave::interpreter::add_atexit_function' instead")
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303 static inline void
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304 add_atexit_function (const std::string& fname)
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305 {
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306 octave::interpreter::add_atexit_function (fname);
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307 }
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308
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309 OCTAVE_DEPRECATED (4.4, "use 'octave::interpreter::remove_atexit_function' instead")
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310 static inline bool
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311 remove_atexit_function (const std::string& fname)
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312 {
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313 return octave::interpreter::remove_atexit_function (fname);
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314 }
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315
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316 #endif
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317
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318 #endif