Mercurial > octave
view libinterp/parse-tree/pt-colon.h @ 33584:3fe954c2fd25 default tip @
maint: merge stable to default
author | Rik <rik@octave.org> |
---|---|
date | Mon, 13 May 2024 11:41:11 -0700 |
parents | d422992b5483 |
children |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2024 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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" OCTAVE_BEGIN_NAMESPACE(octave) class symbol_scope; // Colon expressions. class tree_colon_expression : public tree_expression { public: tree_colon_expression (tree_expression *base, const token& colon_1_tok, tree_expression *limit) : m_base (base), m_colon_1_tok (colon_1_tok), m_limit (limit) { } tree_colon_expression (tree_expression *base, const token& colon_1_tok, tree_expression *increment, const token& colon_2_tok, tree_expression *limit) : m_base (base), m_colon_1_tok (colon_1_tok), m_increment (increment), m_colon_2_tok (colon_2_tok), m_limit (limit) { } OCTAVE_DISABLE_COPY_MOVE (tree_colon_expression) ~tree_colon_expression () { if (! m_save_base) delete m_base; delete m_limit; delete m_increment; } filepos beg_pos () const { return m_base->beg_pos (); } filepos end_pos () const { return m_limit->end_pos (); } void preserve_base () { m_save_base = true; } bool rvalue_ok () const { return true; } void eval_error (const std::string& s) const; tree_expression * base () { return m_base; } tree_expression * limit () { return m_limit; } tree_expression * increment () { return m_increment; } tree_expression * dup (symbol_scope& scope) const; bool is_colon_expression () const { return true; } 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; token m_colon_1_tok; tree_expression *m_increment {nullptr}; token m_colon_2_tok; tree_expression *m_limit; bool m_save_base {false}; }; OCTAVE_END_NAMESPACE(octave) #endif