diff -r 41cb5b80416e -r e1f0ebd2d9ec stage4/generate_cc/search_constant_type.cc --- a/stage4/generate_cc/search_constant_type.cc Tue Oct 23 10:35:58 2007 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,161 +0,0 @@ -/* - * (c) 2003 Mario de Sousa - * - * Offered to the public under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 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. - * - * 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 IL and ST compiler. - * - * Based on the - * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10) - * - */ - - - -/* 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... - */ -class search_constant_type_c: public search_visitor_c { - - public: -/**********************/ -/* 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; - - static constant_real_type_name_c constant_real_type_name; - static constant_int_type_name_c constant_int_type_name; - - public: - symbol_c *get_type(symbol_c *constant) { - return (symbol_c *)constant->accept(*this); - } - - public: -/*********************/ -/* B 1.2 - Constants */ -/*********************/ - -/******************************/ -/* B 1.2.1 - Numeric Literals */ -/******************************/ - void *visit(real_c *symbol) {return (void *)&constant_real_type_name;} - void *visit(integer_c *symbol) {return (void *)&constant_int_type_name;} - void *visit(binary_integer_c *symbol) {return (void *)&constant_int_type_name;} - void *visit(octal_integer_c *symbol) {return (void *)&constant_int_type_name;} - void *visit(hex_integer_c *symbol) {return (void *)&constant_int_type_name;} - - void *visit(numeric_literal_c *symbol) - {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));} - void *visit(integer_literal_c *symbol) - {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));} - void *visit(real_literal_c *symbol) - {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));} - void *visit(bit_string_literal_c *symbol) - {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));} - void *visit(boolean_literal_c *symbol) - {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));} - -/*******************************/ -/* B.1.2.2 Character Strings */ -/*******************************/ - void *visit(double_byte_character_string_c *symbol) {return (void *)&wstring_type_name;} - void *visit(single_byte_character_string_c *symbol) {return (void *)&string_type_name;} - -/***************************/ -/* B 1.2.3 - Time Literals */ -/***************************/ -/************************/ -/* B 1.2.3.1 - Duration */ -/************************/ - void *visit(neg_time_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(duration_c *symbol) {return (void *)&time_type_name;} - void *visit(fixed_point_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(days_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(hours_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(minutes_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(seconds_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(milliseconds_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - -/************************************/ -/* B 1.2.3.2 - Time of day and Date */ -/************************************/ - void *visit(time_of_day_c *symbol) {return (void *)&tod_type_name;} - void *visit(daytime_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(date_c *symbol) {return (void *)&date_type_name;} - void *visit(date_literal_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */ - void *visit(date_and_time_c *symbol) {return (void *)&dt_type_name;} -}; - - -real_type_name_c search_constant_type_c::real_type_name; -sint_type_name_c search_constant_type_c::sint_type_name; -lint_type_name_c search_constant_type_c::lint_type_name; -dint_type_name_c search_constant_type_c::dint_type_name; -date_type_name_c search_constant_type_c::date_type_name; -dword_type_name_c search_constant_type_c::dword_type_name; -dt_type_name_c search_constant_type_c::dt_type_name; -tod_type_name_c search_constant_type_c::tod_type_name; -udint_type_name_c search_constant_type_c::udint_type_name; -word_type_name_c search_constant_type_c::word_type_name; -wstring_type_name_c search_constant_type_c::wstring_type_name; -string_type_name_c search_constant_type_c::string_type_name; -lword_type_name_c search_constant_type_c::lword_type_name; -uint_type_name_c search_constant_type_c::uint_type_name; -lreal_type_name_c search_constant_type_c::lreal_type_name; -byte_type_name_c search_constant_type_c::byte_type_name; -usint_type_name_c search_constant_type_c::usint_type_name; -ulint_type_name_c search_constant_type_c::ulint_type_name; -bool_type_name_c search_constant_type_c::bool_type_name; -time_type_name_c search_constant_type_c::time_type_name; -int_type_name_c search_constant_type_c::int_type_name; - -constant_real_type_name_c search_constant_type_c::constant_real_type_name; -constant_int_type_name_c search_constant_type_c::constant_int_type_name; - - - - - -