author | Manuele Conti <conti.ma@alice.it> |
Wed, 13 Jun 2012 19:51:26 +0200 | |
changeset 593 | 412780374bd3 |
parent 294 | aae14da3c296 |
permissions | -rwxr-xr-x |
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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 data type of an il_operand. |
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* |
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* Note that the il_operand may be a variable, in which case |
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* we return the type of the variable instance. |
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* The il_operand may also be a constant, in which case |
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* we return the data type of that constant. |
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* |
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* The variable instance may be a member of a structured variable, |
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* or an element in an array, or any combination of the two. |
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* |
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* The class constructor must be given the search scope |
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* (function, function block or program within which |
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* the possible il_operand variable instance was declared). |
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*/ |
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class search_il_operand_type_c { |
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private: |
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search_varfb_instance_type_c search_varfb_instance_type; |
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search_constant_type_c search_constant_type; |
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public: |
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search_il_operand_type_c(symbol_c *search_scope): search_varfb_instance_type(search_scope) {} |
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public: |
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symbol_c *get_type(symbol_c *il_operand); |
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}; |