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/*

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 * (c) 2009 Mario de Sousa

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 *

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 * Offered to the public under the terms of the GNU General Public License

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 * as published by the Free Software Foundation; either version 2 of the

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 * License, or (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, but

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 * WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General

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 * Public License for more details.

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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 IL and ST compiler.

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 *

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 * Based on the

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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2009-04-24)

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 *

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 */

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#include "stage3.hh"

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int type_safety(symbol_c *tree_root){

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	visit_expression_type_c visit_expression_type(tree_root);

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	(*tree_root).accept(visit_expression_type);

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	if (visit_expression_type.get_error_found())

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	  return -1;

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	return 0;

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}

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int stage3(symbol_c *tree_root){

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	return type_safety(tree_root);

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}