util/dsymtable.cc
author mjsousa
Thu, 02 Jun 2016 11:59:45 +0100
changeset 1020 36fb9443b6ea
parent 972 bc90dd4bbf4f
permissions -rwxr-xr-x
fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
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/*
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 *  matiec - a compiler for the programming languages defined in IEC 61131-3
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 *
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 *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
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 *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant
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 *
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 *  This program is free software: you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation, either version 3 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 *
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 * This code is made available on the understanding that it will not be
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 * used in safety-critical situations without a full and competent review.
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 */
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/*
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 * A generic symbol table that allows duplicate values.
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 *
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 * This is used to create a symbol table of previously defined
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 * functions. Duplicate are allowed since the standard permits function\
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 * overloading in the standard library.
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 */
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#include <iostream>
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#include "symtable.hh"
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#include "../main.hh" // required for ERROR() and ERROR_MSG() macros.
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 /* clear all entries... */
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template<typename value_type>
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void dsymtable_c<value_type>::reset(void) {
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  _base.clear();
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}
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template<typename value_type>
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void dsymtable_c<value_type>::insert(const char *identifier_str, value_t new_value) {
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  // std::cout << "store_identifier(" << identifier_str << "): \n";
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  std::pair<const char *, value_t> new_element(identifier_str, new_value);
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  /* iterator res = */ _base.insert(new_element);
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}
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template<typename value_type>
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void dsymtable_c<value_type>::insert(const symbol_c *symbol, value_t new_value) {
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  const token_c *name = dynamic_cast<const token_c *>(symbol);
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  if (name == NULL)
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    ERROR;
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  insert(name->value, new_value);
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}
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#if 0
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template<typename value_type>
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void dsymtable_c<value_type>::insert_noduplicate(const char *identifier_str, value_t new_value) {
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  if (find_value(identifier_str) != null_value)
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    /* already present in the set! */
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    ERROR;
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  // std::cout << "store_identifier(" << identifier_str << "): \n";
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  std::pair<const char *, value_t> new_element(identifier_str, new_value);
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  /* iterator res = */ _base.insert(new_element);
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}
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template<typename value_type>
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void dsymtable_c<value_type>::insert_noduplicate(const symbol_c *symbol, value_t new_value) {
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  const token_c *name = dynamic_cast<const token_c *>(symbol);
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  if (name == NULL)
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    ERROR;
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  insert_noduplicate(name->value, new_value);
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}
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#endif
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template<typename value_type>
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const char * dsymtable_c<value_type>::symbol_to_string(const symbol_c *symbol) {
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  const token_c *name = dynamic_cast<const token_c *>(symbol);
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  if (name == NULL)
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    ERROR;
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  return name->value;
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}
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/* debuging function... */
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template<typename value_type>
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void dsymtable_c<value_type>::print(void) {
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  for(iterator i = _base.begin();
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      i != _base.end();
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      i++)
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    std::cout << i->second << ":" << i->first << "\n";
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  std::cout << "=====================\n";
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}
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