util/dsymtable.cc
author Mario de Sousa <msousa@fe.up.pt>
Fri, 20 Apr 2018 17:38:09 +0100
changeset 1071 7fd69f29320a
parent 972 bc90dd4bbf4f
permissions -rw-r--r--
fix backup/restore functions: now also backup/restore programs instantiated to run inside tasks.
/*
 *  matiec - a compiler for the programming languages defined in IEC 61131-3
 *
 *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
 *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant
 *
 *  This program 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.
 *
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * This code is made available on the understanding that it will not be
 * used in safety-critical situations without a full and competent review.
 */

/*
 * A generic symbol table that allows duplicate values.
 *
 * This is used to create a symbol table of previously defined
 * functions. Duplicate are allowed since the standard permits function\
 * overloading in the standard library.
 */


#include <iostream>
#include "symtable.hh"
#include "../main.hh" // required for ERROR() and ERROR_MSG() macros.



 /* clear all entries... */
template<typename value_type>
void dsymtable_c<value_type>::reset(void) {
  _base.clear();
}


template<typename value_type>
void dsymtable_c<value_type>::insert(const char *identifier_str, value_t new_value) {
  // std::cout << "store_identifier(" << identifier_str << "): \n";
  std::pair<const char *, value_t> new_element(identifier_str, new_value);
  /* iterator res = */ _base.insert(new_element);
}


template<typename value_type>
void dsymtable_c<value_type>::insert(const symbol_c *symbol, value_t new_value) {
  const token_c *name = dynamic_cast<const token_c *>(symbol);
  if (name == NULL)
    ERROR;
  insert(name->value, new_value);
}


#if 0
template<typename value_type>
void dsymtable_c<value_type>::insert_noduplicate(const char *identifier_str, value_t new_value) {
  if (find_value(identifier_str) != null_value)
    /* already present in the set! */
    ERROR;

  // std::cout << "store_identifier(" << identifier_str << "): \n";
  std::pair<const char *, value_t> new_element(identifier_str, new_value);
  /* iterator res = */ _base.insert(new_element);
}


template<typename value_type>
void dsymtable_c<value_type>::insert_noduplicate(const symbol_c *symbol, value_t new_value) {
  const token_c *name = dynamic_cast<const token_c *>(symbol);
  if (name == NULL)
    ERROR;
  insert_noduplicate(name->value, new_value);
}
#endif




template<typename value_type>
const char * dsymtable_c<value_type>::symbol_to_string(const symbol_c *symbol) {
  const token_c *name = dynamic_cast<const token_c *>(symbol);
  if (name == NULL)
    ERROR;
  return name->value;
}


/* debuging function... */
template<typename value_type>
void dsymtable_c<value_type>::print(void) {
  for(iterator i = _base.begin();
      i != _base.end();
      i++)
    std::cout << i->second << ":" << i->first << "\n";
  std::cout << "=====================\n";
}