Mercurial > octave
view libinterp/parse-tree/pt-arg-list.cc @ 33309:d422992b5483
refactor position tracking in the parser
This change replaces direct source line and column tracking in the
tree_* classes with the beginning and ending positions in tokens
created by the lexer. All line and column arguments for tree_*
constructors have been removed. More tree_* classes have been
modified to store tokens that are part of the syntax but not necessary
for evaluation.
Affected files: cdef-class.cc, ov-fcn.cc, ov-fcn.h, ov-usr-fcn.cc,
ov-usr-fcn.h, bp-table.cc, oct-parse.yy, parse.h, pt-arg-list.cc,
pt-arg-list.h, pt-args-block.h, pt-array-list.h, pt-assign.cc,
pt-assign.h, pt-binop.cc, pt-binop.h, pt-cbinop.cc, pt-cbinop.h,
pt-cell.cc, pt-cell.h, pt-classdef.cc, pt-classdef.h, pt-cmd.h,
pt-colon.cc, pt-colon.h, pt-const.cc, pt-const.h, pt-decl.cc,
pt-decl.h, pt-eval.cc, pt-except.h, pt-exp.h, pt-fcn-handle.cc,
pt-fcn-handle.h, pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.h, pt-loop.h,
pt-mat.cc, pt-mat.h, pt-misc.h, pt-select.h, pt-spmd.h, pt-stmt.cc,
pt-stmt.h, pt-unop.cc, pt-unop.h, pt.cc, and pt.h.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 04 Apr 2024 00:58:56 -0400 |
parents | 0b5f3219b650 |
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 (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" OCTAVE_BEGIN_NAMESPACE(octave) // Argument lists. tree_argument_list::~tree_argument_list () { while (! empty ()) { auto p = begin (); delete *p; erase (p); } } void tree_argument_list::push_back (const element_type& s) { std::list<tree_expression *>::push_back (s); 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 () const { for (const tree_expression *elt : *this) { if (! elt->is_constant ()) return false; } return true; } bool tree_argument_list::is_valid_lvalue_list () 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 () const { int len = size (); 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 () 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_simple_assign_lhs = m_simple_assign_lhs; new_list->m_list_includes_magic_tilde = m_list_includes_magic_tilde; new_list->m_delims = m_delims; for (const tree_expression *elt : *this) new_list->push_back (elt ? elt->dup (scope) : nullptr); return new_list; } OCTAVE_END_NAMESPACE(octave)