annotate libinterp/parse-tree/parse.h @ 22869:f75d289645ec

make deleted functions public * octave-gui.h, resource-manager.h, shortcut-manager.h, base-text-renderer.h, c-file-ptr-stream.h, dynamic-ld.cc, dynamic-ld.h, event-queue.h, ft-text-renderer.cc, gl-render.cc, gl-render.h, graphics.cc, graphics.in.h, interpreter.h, mex.cc, mxarray.in.h, oct-fstrm.h, oct-iostrm.h, oct-prcstrm.h, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, octave-link.h, pager.h, profiler.h, sighandlers.cc, symtab.h, text-renderer.h, zfstream.h, __init_fltk__.cc, ov-builtin.h, ov-dld-fcn.h, ov-fcn.h, ov-mex-fcn.h, ov-typeinfo.h, ov-usr-fcn.h, octave.h, lex.h, parse.h, pt-arg-list.h, pt-array-list.h, pt-assign.h, pt-binop.h, pt-bp.h, pt-cell.h, pt-check.h, pt-classdef.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-funcall.h, pt-id.h, pt-idx.h, pt-jump.h, pt-loop.h, pt-mat.h, pt-misc.h, pt-pr-code.h, pt-select.h, pt-stmt.h, pt-unop.h, pt-walk.h, pt.h, token.h, Array.cc, idx-vector.h, oct-fftw.h, sparse-chol.cc, sparse-qr.cc, file-ops.h, mach-info.h, oct-env.h, action-container.h, cmd-edit.cc, cmd-edit.h, cmd-hist.h, oct-locbuf.h, oct-mutex.h, oct-shlib.cc, oct-sort.h, pathsearch.h, singleton-cleanup.h, unwind-prot.h, url-transfer.cc, url-transfer.h: Declare deleted copy constructors and assignment operators public.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Dec 2016 12:40:45 -0500
parents 87e3163f6c87
children 564e959a0e89
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1 /*
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2
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3 Copyright (C) 1993-2016 John W. Eaton
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4
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5 This file is part of Octave.
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6
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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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
3a2b891d0b33 maint: Standardize Copyright formatting.
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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
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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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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21 */
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22
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23 #if ! defined (octave_parse_h)
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24 #define octave_parse_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 <cstdio>
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29
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30 #include <string>
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31
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32 #include <stack>
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33 #include <vector>
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34 #include <map>
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35
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36 #include "lex.h"
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37 #include "symtab.h"
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38 #include "token.h"
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39
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40 class octave_comment_list;
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41 class octave_function;
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42 class octave_user_function;
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43 class tree;
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44 class tree_anon_fcn_handle;
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45 class tree_argument_list;
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46 class tree_array_list;
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47 class tree_cell;
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48 class tree_classdef;
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49 class tree_classdef_attribute_list;
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50 class tree_classdef_body;
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51 class tree_classdef_enum_block;
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52 class tree_classdef_enum_list;
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53 class tree_classdef_events_block;
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54 class tree_classdef_events_list;
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55 class tree_classdef_methods_block;
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56 class tree_classdef_methods_list;
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57 class tree_classdef_properties_block;
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58 class tree_classdef_property_list;
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59 class tree_classdef_superclass_list;
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60 class tree_colon_expression;
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61 class tree_command;
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62 class tree_constant;
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63 class tree_decl_command;
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64 class tree_decl_init_list;
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65 class tree_expression;
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66 class tree_fcn_handle;
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67 class tree_funcall;
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68 class tree_function_def;
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69 class tree_identifier;
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70 class tree_if_clause;
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71 class tree_if_command;
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72 class tree_if_command_list;
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73 class tree_index_expression;
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74 class tree_matrix;
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75 class tree_matrix;
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76 class tree_parameter_list;
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77 class tree_statement;
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78 class tree_statement_list;
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79 class tree_statement_listtree_statement;
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80 class tree_switch_case;
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81 class tree_switch_case_list;
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82 class tree_switch_command;
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83
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84 #include "ovl.h"
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85
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86 // Nonzero means print parser debugging info (-d).
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87 extern int octave_debug;
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88
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89 // TRUE means we printed messages about reading startup files.
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90 extern bool reading_startup_message_printed;
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91
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92 extern OCTINTERP_API std::string
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93 get_help_from_file (const std::string& nm, bool& symbol_found,
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94 std::string& file);
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95
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96 extern OCTINTERP_API std::string
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97 get_help_from_file (const std::string& nm, bool& symbol_found);
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98
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99 extern OCTINTERP_API std::string lookup_autoload (const std::string& nm);
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100
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101 extern OCTINTERP_API string_vector autoloaded_functions (void);
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102
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103 extern OCTINTERP_API string_vector
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104 reverse_lookup_autoload (const std::string& nm);
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105
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106 extern OCTINTERP_API octave_function *
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107 load_fcn_from_file (const std::string& file_name,
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108 const std::string& dir_name = "",
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109 const std::string& dispatch_type = "",
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110 const std::string& package_name = "",
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111 const std::string& fcn_name = "",
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112 bool autoload = false);
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113
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114 extern OCTINTERP_API void
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115 source_file (const std::string& file_name,
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116 const std::string& context = "",
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117 bool verbose = false, bool require_file = true,
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118 const std::string& warn_for = "");
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119
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120 extern OCTINTERP_API octave_value_list
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121 feval (const std::string& name,
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122 const octave_value_list& args = octave_value_list (),
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123 int nargout = 0);
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124
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125 extern OCTINTERP_API octave_value_list
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126 feval (octave_function *fcn,
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127 const octave_value_list& args = octave_value_list (),
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128 int nargout = 0);
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129
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130 extern OCTINTERP_API octave_value_list
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131 feval (const octave_value_list& args, int nargout = 0);
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132
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133 extern OCTINTERP_API octave_value_list
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134 eval_string (const std::string&, bool silent, int& parse_status, int nargout);
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135
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136 extern OCTINTERP_API octave_value
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137 eval_string (const std::string&, bool silent, int& parse_status);
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138
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139 extern OCTINTERP_API void cleanup_statement_list (tree_statement_list **lst);
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140
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141 namespace octave
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142 {
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143 // Global access to currently active lexer.
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144 // FIXME: to be removed after more parser+lexer refactoring.
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145 extern base_lexer *LEXER;
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146
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147 class
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148 base_parser
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149 {
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150 public:
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151
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152 base_parser (base_lexer& lxr);
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153
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154 // No copying!
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155
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156 base_parser (const base_parser&) = delete;
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157
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158 base_parser& operator = (const base_parser&) = delete;
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159
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160 ~base_parser (void);
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161
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162 void reset (void);
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163
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164 // Error mesages for mismatched end tokens.
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165 void end_token_error (token *tok, token::end_tok_type expected);
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166
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167 // Check to see that end tokens are properly matched.
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168 bool end_token_ok (token *tok, token::end_tok_type expected);
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169
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170 // Maybe print a warning if an assignment expression is used as the
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171 // test in a logical expression.
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172 void maybe_warn_assign_as_truth_value (tree_expression *expr);
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173
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174 // Maybe print a warning about switch labels that aren't constants.
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175 void maybe_warn_variable_switch_label (tree_expression *expr);
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176
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177 // Finish building a range.
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178 tree_expression *finish_colon_expression (tree_colon_expression *e);
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179
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180 // Build a constant.
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181 tree_constant *make_constant (int op, token *tok_val);
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182
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183 // Build a function handle.
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184 tree_fcn_handle *make_fcn_handle (token *tok_val);
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185
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186 // Build an anonymous function handle.
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187 tree_anon_fcn_handle *
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188 make_anon_fcn_handle (tree_parameter_list *param_list, tree_statement *stmt);
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189
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190 // Build a binary expression.
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191 tree_expression *
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192 make_binary_op (int op, tree_expression *op1, token *tok_val,
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193 tree_expression *op2);
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194
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195 // Build a boolean expression.
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196 tree_expression *
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197 make_boolean_op (int op, tree_expression *op1, token *tok_val,
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198 tree_expression *op2);
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199
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200 // Build a prefix expression.
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201 tree_expression *
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202 make_prefix_op (int op, tree_expression *op1, token *tok_val);
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203
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204 // Build a postfix expression.
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205 tree_expression *
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206 make_postfix_op (int op, tree_expression *op1, token *tok_val);
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207
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208 // Build an unwind-protect command.
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209 tree_command *
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210 make_unwind_command (token *unwind_tok, tree_statement_list *body,
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211 tree_statement_list *cleanup, token *end_tok,
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212 octave_comment_list *lc, octave_comment_list *mc);
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213
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214 // Build a try-catch command.
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215 tree_command *
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216 make_try_command (token *try_tok, tree_statement_list *body,
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217 char catch_sep, tree_statement_list *cleanup,
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218 token *end_tok, octave_comment_list *lc,
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219 octave_comment_list *mc);
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220
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221 // Build a while command.
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222 tree_command *
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223 make_while_command (token *while_tok, tree_expression *expr,
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224 tree_statement_list *body, token *end_tok,
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225 octave_comment_list *lc);
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226
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227 // Build a do-until command.
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228 tree_command *
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229 make_do_until_command (token *until_tok, tree_statement_list *body,
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230 tree_expression *expr, octave_comment_list *lc);
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231
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232 // Build a for command.
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233 tree_command *
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234 make_for_command (int tok_id, token *for_tok, tree_argument_list *lhs,
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235 tree_expression *expr, tree_expression *maxproc,
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236 tree_statement_list *body, token *end_tok,
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237 octave_comment_list *lc);
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238
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239 // Build a break command.
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240 tree_command *make_break_command (token *break_tok);
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241
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242 // Build a continue command.
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243 tree_command *make_continue_command (token *continue_tok);
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244
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245 // Build a return command.
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246 tree_command *make_return_command (token *return_tok);
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247
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248 // Start an if command.
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249 tree_if_command_list *
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250 start_if_command (tree_expression *expr, tree_statement_list *list);
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251
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252 // Finish an if command.
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253 tree_if_command *
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254 finish_if_command (token *if_tok, tree_if_command_list *list,
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255 token *end_tok, octave_comment_list *lc);
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256
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257 // Build an elseif clause.
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258 tree_if_clause *
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259 make_elseif_clause (token *elseif_tok, tree_expression *expr,
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260 tree_statement_list *list, octave_comment_list *lc);
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261
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262 // Finish a switch command.
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263 tree_switch_command *
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264 finish_switch_command (token *switch_tok, tree_expression *expr,
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265 tree_switch_case_list *list, token *end_tok,
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266 octave_comment_list *lc);
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267
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268 // Build a switch case.
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269 tree_switch_case *
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270 make_switch_case (token *case_tok, tree_expression *expr,
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271 tree_statement_list *list, octave_comment_list *lc);
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272
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273 // Build an assignment to a variable.
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274 tree_expression *
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275 make_assign_op (int op, tree_argument_list *lhs, token *eq_tok,
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276 tree_expression *rhs);
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277
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278 // Define a script.
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279 void make_script (tree_statement_list *cmds, tree_statement *end_script);
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280
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281 // Begin defining a function.
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282 octave_user_function *
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283 start_function (tree_parameter_list *param_list, tree_statement_list *body,
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284 tree_statement *end_function);
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285
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286 // Create a no-op statement for end_function.
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287 tree_statement *make_end (const std::string& type, bool eof, int l, int c);
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288
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289 // Do most of the work for defining a function.
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290 octave_user_function *
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291 frob_function (const std::string& fname, octave_user_function *fcn);
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292
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293 // Finish defining a function.
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294 tree_function_def *
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295 finish_function (tree_parameter_list *ret_list,
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296 octave_user_function *fcn, octave_comment_list *lc,
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297 int l, int c);
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298
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299 // Reset state after parsing function.
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300 void
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301 recover_from_parsing_function (void);
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302
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303 tree_funcall *
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304 make_superclass_ref (const std::string& method_nm,
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305 const std::string& class_nm);
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306
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307 tree_funcall *
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308 make_meta_class_query (const std::string& class_nm);
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309
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310 tree_classdef *
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311 make_classdef (token *tok_val, tree_classdef_attribute_list *a,
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312 tree_identifier *id, tree_classdef_superclass_list *sc,
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313 tree_classdef_body *body, token *end_tok,
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314 octave_comment_list *lc);
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315
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316 tree_classdef_properties_block *
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317 make_classdef_properties_block (token *tok_val,
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318 tree_classdef_attribute_list *a,
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319 tree_classdef_property_list *plist,
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320 token *end_tok, octave_comment_list *lc);
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321
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322 tree_classdef_methods_block *
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323 make_classdef_methods_block (token *tok_val,
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324 tree_classdef_attribute_list *a,
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325 tree_classdef_methods_list *mlist,
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326 token *end_tok, octave_comment_list *lc);
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327
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328 tree_classdef_events_block *
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329 make_classdef_events_block (token *tok_val,
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330 tree_classdef_attribute_list *a,
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331 tree_classdef_events_list *elist,
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332 token *end_tok, octave_comment_list *lc);
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333
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334 tree_classdef_enum_block *
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335 make_classdef_enum_block (token *tok_val,
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336 tree_classdef_attribute_list *a,
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337 tree_classdef_enum_list *elist,
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338 token *end_tok, octave_comment_list *lc);
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339
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340 octave_user_function *
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341 start_classdef_external_method (tree_identifier *id,
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342 tree_parameter_list *pl);
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343
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344 tree_function_def *
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345 finish_classdef_external_method (octave_user_function *fcn,
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346 tree_parameter_list *ret_list,
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347 octave_comment_list *cl);
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348
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349 // Make an index expression.
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350 tree_index_expression *
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351 make_index_expression (tree_expression *expr,
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352 tree_argument_list *args, char type);
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353
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354 // Make an indirect reference expression.
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355 tree_index_expression *
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356 make_indirect_ref (tree_expression *expr, const std::string&);
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357
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358 // Make an indirect reference expression with dynamic field name.
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359 tree_index_expression *
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360 make_indirect_ref (tree_expression *expr, tree_expression *field);
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361
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362 // Make a declaration command.
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363 tree_decl_command *
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364 make_decl_command (int tok, token *tok_val, tree_decl_init_list *lst);
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365
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366 // Validate matrix or cell
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367 bool validate_array_list (tree_expression *e);
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368
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369 // Validate matrix object used in "[lhs] = ..." assignments.
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370 tree_argument_list *validate_matrix_for_assignment (tree_expression *e);
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371
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372 // Finish building an array_list (common action for finish_matrix
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373 // and finish_cell).
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374 tree_expression *finish_array_list (tree_array_list *a);
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375
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376 // Finish building a matrix list.
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377 tree_expression *finish_matrix (tree_matrix *m);
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378
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379 // Finish building a cell list.
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380 tree_expression *finish_cell (tree_cell *c);
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381
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382 // Maybe print a warning. Duh.
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383 void maybe_warn_missing_semi (tree_statement_list *);
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384
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385 // Set the print flag for a statement based on the separator type.
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386 tree_statement_list *
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387 set_stmt_print_flag (tree_statement_list *, char, bool);
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388
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389 // Finish building a statement.
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390 template <typename T>
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391 tree_statement *make_statement (T *arg);
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392
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393 // Create a statement list.
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394 tree_statement_list *make_statement_list (tree_statement *stmt);
17693
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parents: 17283
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395
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396 // Append a statement to an existing statement list.
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397 tree_statement_list *
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398 append_statement_list (tree_statement_list *list, char sep,
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399 tree_statement *stmt, bool warn_missing_semi);
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400
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401 // Generic error messages.
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402 void bison_error (const std::string& s, int l = -1, int c = -1);
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403
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404 // Contains error message if Bison-generated parser returns non-zero
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405 // status.
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406 std::string parse_error_msg;
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407
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408 // Have we found an explicit end to a function?
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409 bool endfunction_found;
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26d65d677557 rename yyerror to bison_error and make it a member of octave_parser class
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parents: 16139
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410
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411 // TRUE means we are in the process of autoloading a function.
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412 bool autoloading;
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413
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414 // TRUE means the current function file was found in a relative path
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415 // element.
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diff changeset
416 bool fcn_file_from_relative_lookup;
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417
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418 // FALSE if we are still at the primary function. Subfunctions can
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419 // only be declared inside function files.
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420 bool parsing_subfunctions;
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421
22196
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diff changeset
422 // Maximum function depth detected. Used to determine whether
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parents: 21751
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423 // we have nested functions or just implicitly ended subfunctions.
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diff changeset
424 int max_fcn_depth;
16153
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425
22196
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426 // = 0 currently outside any function.
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diff changeset
427 // = 1 inside the primary function or a subfunction.
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428 // > 1 means we are looking at a function definition that seems to be
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parents: 21751
diff changeset
429 // inside a function. Note that the function still might not be a
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430 // nested function.
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diff changeset
431 int curr_fcn_depth;
16153
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432
22196
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433 // Scope where we install all subfunctions and nested functions. Only
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434 // used while reading function files.
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diff changeset
435 symbol_table::scope_id primary_fcn_scope;
16153
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parents: 16149
diff changeset
436
22196
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diff changeset
437 // Name of the current class when we are parsing class methods or
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diff changeset
438 // constructors.
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diff changeset
439 std::string curr_class_name;
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440
22196
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diff changeset
441 // Name of the current package when we are parsing an element contained
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John W. Eaton <jwe@octave.org>
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442 // in a package directory (+-directory).
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diff changeset
443 std::string curr_package_name;
16676
7368654f302f Initial support for (classdef) packages.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 16644
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444
22196
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445 // A stack holding the nested function scopes being parsed.
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446 // We don't use std::stack, because we want the clear method. Also, we
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diff changeset
447 // must access one from the top
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diff changeset
448 std::vector<symbol_table::scope_id> function_scopes;
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parents: 16149
diff changeset
449
22196
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diff changeset
450 // Pointer to the primary user function or user script function.
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451 octave_function *primary_fcn_ptr;
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diff changeset
452
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diff changeset
453 // List of subfunction names, initially in the order they are
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454 // installed in the symbol table, then ordered as they appear in the
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diff changeset
455 // file. Eventually stashed in the primary function object.
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456 std::list<std::string> subfunction_names;
16627
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16335
diff changeset
457
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458 // Pointer to the classdef object we just parsed, if any.
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diff changeset
459 tree_classdef *classdef_object;
16211
3449bf257514 maint: fix botched merge of default to classdef
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parents: 16205
diff changeset
460
22196
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461 // Result of parsing input.
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diff changeset
462 tree_statement_list *stmt_list;
16177
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parents: 16164
diff changeset
463
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464 // State of the lexer.
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diff changeset
465 base_lexer& lexer;
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49dfba4fd3c5 use pure parser and reentrant lexer interfaces
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parents: 16142
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466
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467 // Internal state of the Bison parser.
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468 void *parser_state;
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469 };
16287
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470
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471 class
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John W. Eaton <jwe@octave.org>
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472 parser : public base_parser
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473 {
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474 public:
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parents: 16273
diff changeset
475
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diff changeset
476 parser (void)
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477 : base_parser (*(new octave::lexer ()))
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John W. Eaton <jwe@octave.org>
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478 { }
16287
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479
22196
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480 parser (FILE *file)
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481 : base_parser (*(new octave::lexer (file)))
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482 { }
16287
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parents: 16273
diff changeset
483
22196
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diff changeset
484 parser (const std::string& eval_string)
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485 : base_parser (*(new octave::lexer (eval_string)))
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parents: 21751
diff changeset
486 { }
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John W. Eaton <jwe@octave.org>
parents: 16273
diff changeset
487
22196
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diff changeset
488 parser (octave::lexer& lxr)
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John W. Eaton <jwe@octave.org>
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489 : base_parser (lxr)
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John W. Eaton <jwe@octave.org>
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490 { }
16335
bef822a80ffb if not interactive, bypass readline and read stdin as a file (bug #38520)
John W. Eaton <jwe@octave.org>
parents: 16294
diff changeset
491
22196
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492 // No copying!
16133
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John W. Eaton <jwe@octave.org>
parents: 16122
diff changeset
493
22865
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John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
494 parser (const parser&) = delete;
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John W. Eaton <jwe@octave.org>
parents: 16122
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495
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diff changeset
496 parser& operator = (const parser&) = delete;
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497
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diff changeset
498 ~parser (void) = default;
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499
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500 int run (void);
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501 };
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parents: 16122
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502
22196
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503 class
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504 push_parser : public base_parser
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505 {
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diff changeset
506 public:
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507
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diff changeset
508 push_parser (void)
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509 : base_parser (*(new octave::push_lexer ()))
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diff changeset
510 { }
16294
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diff changeset
511
22196
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diff changeset
512 // No copying!
16294
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diff changeset
513
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diff changeset
514 push_parser (const push_parser&) = delete;
16294
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parents: 16293
diff changeset
515
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parents: 22755
diff changeset
516 push_parser& operator = (const push_parser&) = delete;
22869
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517
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diff changeset
518 ~push_parser (void) = default;
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519
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diff changeset
520 int run (const std::string& input, bool eof);
22196
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21751
diff changeset
521 };
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21751
diff changeset
522 }
16294
0925d1f6875e push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents: 16293
diff changeset
523
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
524 #endif
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
525