Mercurial > octave
view libinterp/parse-tree/pt-arg-list.cc @ 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 (HAVE_CONFIG_H) # include "config.h" #endif #include <string> #include "str-vec.h" #include "ovl.h" #include "ov.h" #include "pt-arg-list.h" #include "pt-exp.h" #include "pt-id.h" #include "pt-idx.h" #include "pt-pr-code.h" namespace octave { // Argument lists. tree_argument_list::~tree_argument_list (void) { while (! empty ()) { auto p = begin (); delete *p; erase (p); } } bool tree_argument_list::has_magic_end (void) const { for (const tree_expression *elt : *this) { if (elt && ! elt->is_index_expression () && elt->has_magic_end ()) return true; } return false; } void tree_argument_list::append (const element_type& s) { base_list<tree_expression *>::append (s); if (! m_list_includes_magic_end && s && s->has_magic_end ()) m_list_includes_magic_end = true; if (! m_list_includes_magic_tilde && s && s->is_identifier ()) { tree_identifier *id = dynamic_cast<tree_identifier *> (s); m_list_includes_magic_tilde = id && id->is_black_hole (); } } bool tree_argument_list::all_elements_are_constant (void) const { for (const tree_expression *elt : *this) { if (! elt->is_constant ()) return false; } return true; } bool tree_argument_list::is_valid_lvalue_list (void) const { bool retval = true; for (const tree_expression *elt : *this) { // There is no need for a separate check for the magic "~" because it // is represented by tree_black_hole, and that is derived from // tree_identifier. if (! (elt->is_identifier () || elt->is_index_expression ())) { retval = false; break; } } return retval; } string_vector tree_argument_list::get_arg_names (void) const { int len = length (); string_vector retval (len); int k = 0; for (tree_expression *elt : *this) retval(k++) = elt->str_print_code (); return retval; } std::list<std::string> tree_argument_list::variable_names (void) const { std::list<std::string> retval; for (tree_expression *elt : *this) { if (elt->is_identifier ()) { tree_identifier *id = dynamic_cast<tree_identifier *> (elt); retval.push_back (id->name ()); } else if (elt->is_index_expression ()) { tree_index_expression *idx_expr = dynamic_cast<tree_index_expression *> (elt); retval.push_back (idx_expr->name ()); } } return retval; } tree_argument_list * tree_argument_list::dup (symbol_scope& scope) const { tree_argument_list *new_list = new tree_argument_list (); new_list->m_list_includes_magic_end = m_list_includes_magic_end; new_list->m_simple_assign_lhs = m_simple_assign_lhs; for (const tree_expression *elt : *this) new_list->append (elt ? elt->dup (scope) : nullptr); return new_list; } }