diff -r bb4511694c0e -r ec8df1de3e08 absyntax_utils/search_constant_type.hh --- a/absyntax_utils/search_constant_type.hh Fri Oct 26 13:48:16 2012 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,188 +0,0 @@ -/* - * matiec - a compiler for the programming languages defined in IEC 61131-3 - * - * Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt) - * Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant - * - * 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 . - * - * - * 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) - * - */ - -/* NOTE: The use of this visitor class is now deprecated. - * The new version of stage3 data type checking adds an entry to - * every relevant object in the abstract syntax tree defining - * the data type of that object. Please use that instead! - */ - - - -/* Determine the data type of a specific constant or variable. - * A reference to the relevant type definition is returned. - * - * For example: - * 22 -> returns reference to a int_type_name_c object. - * 22.2 -> returns reference to a real_type_name_c object. - * LREAL#22.2 -> returns reference to a lreal_type_name_c object. - * etc... - */ - - -#include "../absyntax/visitor.hh" - -#ifndef _SEARCH_CONSTANT_TYPE_HH -#define _SEARCH_CONSTANT_TYPE_HH - -class search_constant_type_c: public search_visitor_c { - - public: - /* object used to identify an entry in the abstract syntax tree with an invalid data type */ - /* This is only used from stage3 onwards. Stages 1 and 2 will never create any instances of invalid_type_name_c */ - static invalid_type_name_c invalid_type_name; - - /**********************/ - /* B.1.3 - Data types */ - /**********************/ - /***********************************/ - /* B 1.3.1 - Elementary Data Types */ - /***********************************/ - static real_type_name_c real_type_name; - static sint_type_name_c sint_type_name; - static lint_type_name_c lint_type_name; - static dint_type_name_c dint_type_name; - static date_type_name_c date_type_name; - static dword_type_name_c dword_type_name; - static dt_type_name_c dt_type_name; - static tod_type_name_c tod_type_name; - static udint_type_name_c udint_type_name; - static word_type_name_c word_type_name; - static wstring_type_name_c wstring_type_name; - static string_type_name_c string_type_name; - static lword_type_name_c lword_type_name; - static uint_type_name_c uint_type_name; - static lreal_type_name_c lreal_type_name; - static byte_type_name_c byte_type_name; - static usint_type_name_c usint_type_name; - static ulint_type_name_c ulint_type_name; - static bool_type_name_c bool_type_name; - static time_type_name_c time_type_name; - static int_type_name_c int_type_name; - - - /******************************************************/ - /* Extensions to the base standard as defined in */ - /* "Safety Software Technical Specification, */ - /* Part 1: Concepts and Function Blocks, */ - /* Version 1.0 – Official Release" */ - /* by PLCopen - Technical Committee 5 - 2006-01-31 */ - /******************************************************/ - -// static safebool_type_name_c safebool_type_name; - /* The following is required because the expression (TOD_var - TOD_var) will result in a data type - * (in this case, TIME) that is neither of the expression elements... - */ - static safetime_type_name_c safetime_type_name; - static safetod_type_name_c safetod_type_name; - static safedt_type_name_c safedt_type_name; - static safedate_type_name_c safedate_type_name; - static safereal_type_name_c safereal_type_name; - static safesint_type_name_c safesint_type_name; - static safelint_type_name_c safelint_type_name; - static safedint_type_name_c safedint_type_name; - static safedword_type_name_c safedword_type_name; - static safeudint_type_name_c safeudint_type_name; - static safeword_type_name_c safeword_type_name; - static safewstring_type_name_c safewstring_type_name; - static safestring_type_name_c safestring_type_name; - static safelword_type_name_c safelword_type_name; - static safeuint_type_name_c safeuint_type_name; - static safelreal_type_name_c safelreal_type_name; - static safebyte_type_name_c safebyte_type_name; - static safeusint_type_name_c safeusint_type_name; - static safeulint_type_name_c safeulint_type_name; - static safebool_type_name_c safebool_type_name; - static safeint_type_name_c safeint_type_name; - - public: - symbol_c *get_type(symbol_c *constant); - - - private: - /*********************/ - /* B 1.2 - Constants */ - /*********************/ - - /******************************/ - /* B 1.2.1 - Numeric Literals */ - /******************************/ - void *visit(real_c *symbol); - void *visit(neg_real_c *symbol); - void *visit(integer_c *symbol); - void *visit(neg_integer_c *symbol); - void *visit(binary_integer_c *symbol); - void *visit(octal_integer_c *symbol); - void *visit(hex_integer_c *symbol); - - void *visit(integer_literal_c *symbol); - void *visit(real_literal_c *symbol); - void *visit(bit_string_literal_c *symbol); - void *visit(boolean_literal_c *symbol); - - void *visit(boolean_true_c *symbol); - void *visit(boolean_false_c *symbol); - - /*******************************/ - /* B.1.2.2 Character Strings */ - /*******************************/ - void *visit(double_byte_character_string_c *symbol); - void *visit(single_byte_character_string_c *symbol); - - /***************************/ - /* B 1.2.3 - Time Literals */ - /***************************/ - /************************/ - /* B 1.2.3.1 - Duration */ - /************************/ - void *visit(neg_time_c *symbol); - void *visit(duration_c *symbol); - void *visit(interval_c *symbol); - void *visit(fixed_point_c *symbol); - - /************************************/ - /* B 1.2.3.2 - Time of day and Date */ - /************************************/ - void *visit(time_of_day_c *symbol); - void *visit(daytime_c *symbol); - void *visit(date_c *symbol); - void *visit(date_literal_c *symbol); - void *visit(date_and_time_c *symbol); - - /********************************/ - /* B 1.3.3 - Derived data types */ - /********************************/ - void *visit(enumerated_value_c *symbol); -}; // search_constant_type_c - - -#endif /* ifndef _SEARCH_CONSTANT_TYPE_HH */