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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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 * An IEC 61131-3 compiler.

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 *

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 * Based on the

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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)

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 *

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 */

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/* Returns the function block declaration symbol

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 * of a specific function block type.

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 */

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#include "absyntax_utils.hh"

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search_fb_typedecl_c::search_fb_typedecl_c(symbol_c *search_scope) {

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  this->search_scope = search_scope;

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}

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symbol_c *search_fb_typedecl_c::get_decl(symbol_c *fb_type_name) {

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  this->search_name = fb_type_name;

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  return (symbol_c *)search_scope->accept(*this);

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}

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/**************************************/

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/* B.1.5 - Program organization units */

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/**************************************/

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/*****************************/

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/* B 1.5.2 - Function Blocks */

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/*****************************/

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void *search_fb_typedecl_c::visit(function_block_declaration_c *symbol) {

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  if (compare_identifiers(symbol->fblock_name, search_name) == 0)

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    return symbol;

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  return NULL;

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}

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/**********************/

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/* B 1.5.3 - Programs */

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/**********************/

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void *search_fb_typedecl_c::visit(program_declaration_c *symbol) {

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  if (compare_identifiers(symbol->program_type_name, search_name) == 0)

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    return symbol;

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  return NULL;

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}

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