absyntax_utils/debug_ast.hh
author mjsousa
Sun, 10 Aug 2014 08:27:28 +0100
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in lvalue, add check for REF() fucntion invocation, and the NULL literal
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/*
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 *  matiec - a compiler for the programming languages defined in IEC 61131-3
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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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/*
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 * Some classes to help with debuging.
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 *
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 * These classes will print out the current state of a symbol or a portion of the Abstract Syntax Tree.
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 */
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#include "../absyntax/absyntax.hh"
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class debug_c { 
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  public:
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    static void print(symbol_c *symbol);
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    static void print(const char *str);
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    /* print the AST from this point downwards */
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    static void print_ast(symbol_c *root_symbol);
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};
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