Mercurial > octave
view libinterp/parse-tree/pt-colon.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_colon_h) #define octave_pt_colon_h 1 #include "octave-config.h" #include <string> class octave_value; class octave_value_list; #include "pt-exp.h" #include "pt-walk.h" namespace octave { class symbol_scope; // Colon expressions. class tree_colon_expression : public tree_expression { public: tree_colon_expression (int l = -1, int c = -1) : tree_expression (l, c), m_base (nullptr), m_limit (nullptr), m_increment (nullptr), m_save_base (false) { } tree_colon_expression (tree_expression *bas, tree_expression *lim, int l = -1, int c = -1) : tree_expression (l, c), m_base (bas), m_limit (lim), m_increment (nullptr), m_save_base (false) { } tree_colon_expression (tree_expression *bas, tree_expression *lim, tree_expression *inc, int l = -1, int c = -1) : tree_expression (l, c), m_base (bas), m_limit (lim), m_increment (inc), m_save_base (false) { } // No copying! tree_colon_expression (const tree_colon_expression&) = delete; tree_colon_expression& operator = (const tree_colon_expression&) = delete; ~tree_colon_expression (void) { if (! m_save_base) delete m_base; delete m_limit; delete m_increment; } bool has_magic_end (void) const { return ((m_base && m_base->has_magic_end ()) || (m_limit && m_limit->has_magic_end ()) || (m_increment && m_increment->has_magic_end ())); } void preserve_base (void) { m_save_base = true; } bool rvalue_ok (void) const { return true; } void eval_error (const std::string& s) const; tree_expression * base (void) { return m_base; } tree_expression * limit (void) { return m_limit; } tree_expression * increment (void) { return m_increment; } tree_expression * dup (symbol_scope& scope) const; octave_value evaluate (tree_evaluator&, int nargout = 1); octave_value_list evaluate_n (tree_evaluator& tw, int nargout = 1) { return ovl (evaluate (tw, nargout)); } void accept (tree_walker& tw) { tw.visit_colon_expression (*this); } private: // The components of the expression. tree_expression *m_base; tree_expression *m_limit; tree_expression *m_increment; bool m_save_base; }; } #endif