Mercurial > octave
view libinterp/parse-tree/pt-idx.h @ 27919:1891570abac8
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2020.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 06 Jan 2020 22:29:51 -0500 |
parents | b442ec6dda5c |
children | bd51beb6205e |
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/* Copyright (C) 1996-2020 The Octave Project Developers See the file COPYRIGHT.md in the top-level directory of this distribution or <https://octave.org/COPYRIGHT.html/>. This file is part of Octave. Octave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <https://www.gnu.org/licenses/>. */ #if ! defined (octave_pt_idx_h) #define octave_pt_idx_h 1 #include "octave-config.h" #include <list> class octave_map; class octave_value; class octave_value_list; #include "str-vec.h" #include "pt-exp.h" #include "pt-walk.h" namespace octave { class octave_lvalue; class symbol_scope; class tree_argument_list; class tree_evaluator; // Index expressions. class tree_index_expression : public tree_expression { public: tree_index_expression (tree_expression *e = nullptr, tree_argument_list *lst = nullptr, int l = -1, int c = -1, char t = '('); tree_index_expression (tree_expression *e, const std::string& n, int l = -1, int c = -1); tree_index_expression (tree_expression *e, tree_expression *df, int l = -1, int c = -1); // No copying! tree_index_expression (const tree_index_expression&) = delete; tree_index_expression& operator = (const tree_index_expression&) = delete; ~tree_index_expression (void); bool has_magic_end (void) const; void append (tree_argument_list *lst = nullptr, char t = '('); void append (const std::string& n); void append (tree_expression *df); bool is_index_expression (void) const { return true; } std::string name (void) const; tree_expression * expression (void) { return m_expr; } std::list<tree_argument_list *> arg_lists (void) { return m_args; } std::string type_tags (void) { return m_type; } std::list<string_vector> arg_names (void) { return m_arg_nm; } std::list<tree_expression *> dyn_fields (void) { return m_dyn_field; } void mark_word_list_cmd (void) { m_word_list_cmd = true; } bool is_word_list_cmd (void) const { return m_word_list_cmd; } bool lvalue_ok (void) const { return m_expr->lvalue_ok (); } bool rvalue_ok (void) const { return true; } octave_lvalue lvalue (tree_evaluator& tw); tree_index_expression * dup (symbol_scope& scope) const; octave_value evaluate (tree_evaluator& tw, int nargout = 1) { octave_value_list retval = evaluate_n (tw, nargout); return retval.length () > 0 ? retval(0) : octave_value (); } octave_value_list evaluate_n (tree_evaluator& tw, int nargout = 1); void accept (tree_walker& tw) { tw.visit_index_expression (*this); } std::string get_struct_index (tree_evaluator& tw, std::list<string_vector>::const_iterator p_arg_nm, std::list<tree_expression *>::const_iterator p_dyn_field) const; private: // The LHS of this index expression. tree_expression *m_expr; // The indices (only valid if type == paren || type == brace). std::list<tree_argument_list *> m_args; // The type of this index expression. std::string m_type; // The names of the arguments. Used for constant struct element // references. std::list<string_vector> m_arg_nm; // The list of dynamic field names, if any. std::list<tree_expression *> m_dyn_field; // TRUE if this expression was parsed as a word list command. bool m_word_list_cmd; tree_index_expression (int l, int c); octave_map make_arg_struct (void) const; }; } #endif