/*
 *  matiec - a compiler for the programming languages defined in IEC 61131-3
 *
 *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
 *
 *  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.
 */

/*
 * An IEC 61131-3 compiler.
 *
 * Based on the
 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
 *
 */

/* Returns the function block declaration symbol
 * of a specific function block type.
 */

#include "absyntax_utils.hh"


search_fb_typedecl_c::search_fb_typedecl_c(symbol_c *search_scope) {
  this->search_scope = search_scope;
}

symbol_c *search_fb_typedecl_c::get_decl(symbol_c *fb_type_name) {
  this->search_name = fb_type_name;
  return (symbol_c *)search_scope->accept(*this);
}
/**************************************/
/* B.1.5 - Program organization units */
/**************************************/

/*****************************/
/* B 1.5.2 - Function Blocks */
/*****************************/
void *search_fb_typedecl_c::visit(function_block_declaration_c *symbol) {
  if (compare_identifiers(symbol->fblock_name, search_name) == 0)
    return symbol;
  return NULL;
}

/**********************/
/* B 1.5.3 - Programs */
/**********************/
void *search_fb_typedecl_c::visit(program_declaration_c *symbol) {
  if (compare_identifiers(symbol->program_type_name, search_name) == 0)
    return symbol;
  return NULL;
}