Mercurial > octave
view libinterp/parse-tree/pt-check.cc @ 31078:4d45392387ec stable
store token ID, not keyword ID when parsing keywords (bug #62587)
* lex.ll (base_lexer::make_keyword_token): Use token ID, not keyword ID,
when constructing token objects.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 07 Jun 2022 08:05:13 -0400 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 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 "error.h" #include "input.h" #include "ov-usr-fcn.h" #include "pt-all.h" namespace octave { void tree_checker::visit_argument_list (tree_argument_list& lst) { auto p = lst.begin (); while (p != lst.end ()) { tree_expression *elt = *p++; if (elt) { if (m_do_lvalue_check && ! elt->lvalue_ok ()) errmsg ("invalid lvalue in multiple assignment", elt->line ()); } } } void tree_checker::visit_simple_for_command (tree_simple_for_command& cmd) { tree_expression *lhs = cmd.left_hand_side (); if (lhs) { if (! lhs->lvalue_ok ()) errmsg ("invalid lvalue in for command", cmd.line ()); } tree_expression *expr = cmd.control_expr (); if (expr) expr->accept (*this); tree_expression *maxproc = cmd.maxproc_expr (); if (maxproc) maxproc->accept (*this); tree_statement_list *list = cmd.body (); if (list) list->accept (*this); } void tree_checker::visit_complex_for_command (tree_complex_for_command& cmd) { tree_argument_list *lhs = cmd.left_hand_side (); if (lhs) { int len = lhs->length (); if (len == 0 || len > 2) errmsg ("invalid number of output arguments in for command", cmd.line ()); m_do_lvalue_check = true; lhs->accept (*this); m_do_lvalue_check = false; } tree_expression *expr = cmd.control_expr (); if (expr) expr->accept (*this); tree_statement_list *list = cmd.body (); if (list) list->accept (*this); } void tree_checker::visit_multi_assignment (tree_multi_assignment& expr) { tree_argument_list *lhs = expr.left_hand_side (); if (lhs) { m_do_lvalue_check = true; lhs->accept (*this); m_do_lvalue_check = false; } tree_expression *rhs = expr.right_hand_side (); if (rhs) rhs->accept (*this); } void tree_checker::visit_simple_assignment (tree_simple_assignment& expr) { tree_expression *lhs = expr.left_hand_side (); if (lhs) { if (! lhs->lvalue_ok ()) errmsg ("invalid lvalue in assignment", expr.line ()); } tree_expression *rhs = expr.right_hand_side (); if (rhs) rhs->accept (*this); } void tree_checker::visit_try_catch_command (tree_try_catch_command& cmd) { tree_statement_list *try_code = cmd.body (); tree_identifier *expr_id = cmd.identifier (); if (expr_id) { if (! expr_id->lvalue_ok ()) errmsg ("invalid lvalue used for identifier in try-catch command", cmd.line ()); } if (try_code) try_code->accept (*this); tree_statement_list *catch_code = cmd.cleanup (); if (catch_code) catch_code->accept (*this); } void tree_checker::errmsg (const std::string& msg, int line) { if (m_file_name.empty ()) error ("%s", msg.c_str ()); else error ("%s: %d: %s", m_file_name.c_str (), line, msg.c_str ()); } }