Mercurial > octave
view libinterp/parse-tree/oct-lvalue.h @ 28193:56c209ff0a08 stable
improve handling of ans assignment with wrapper functions
* oct-lvalue.h, oct-lvalue.cc (octave_lvalue::index_is_colon):
New function.
* pt-assign.cc (tree_multi_assignment::evaluate_n): Also handle result
value when LHS is [varargout{:}] and varargout is defined but empty.
* args.tst: New tests.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 08 Apr 2020 14:56:27 -0400 |
parents | bd51beb6205e |
children | 9a3deb17b4ea |
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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/>. // // 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_oct_lvalue_h) #define octave_oct_lvalue_h 1 #include "octave-config.h" #include <string> #include "ovl.h" #include "stack-frame.h" #include "symrec.h" namespace octave { class octave_lvalue { public: octave_lvalue (const symbol_record& sr, stack_frame& frame) : m_sym (sr), m_frame (frame), m_black_hole (false), m_type (), m_idx (), m_nel (1) { } octave_lvalue (const octave_lvalue&) = default; octave_lvalue& operator = (const octave_lvalue&) = delete; ~octave_lvalue (void) = default; bool is_black_hole (void) const { return m_black_hole; } void mark_black_hole (void) { m_black_hole = true; } bool is_defined (void) const; bool is_undefined (void) const; bool isstruct (void) const { return value().isstruct (); } void define (const octave_value& v); void assign (octave_value::assign_op, const octave_value&); void numel (octave_idx_type n) { m_nel = n; } octave_idx_type numel (void) const { return m_nel; } void set_index (const std::string& t, const std::list<octave_value_list>& i); void clear_index (void) { m_type = ""; m_idx.clear (); } std::string index_type (void) const { return m_type; } bool index_is_empty (void) const; bool index_is_colon (void) const; void do_unary_op (octave_value::unary_op op); octave_value value (void) const; private: symbol_record m_sym; stack_frame& m_frame; bool m_black_hole; std::string m_type; std::list<octave_value_list> m_idx; octave_idx_type m_nel; }; } #endif