--- a/absyntax_utils/search_constant_type.cc Fri Oct 26 13:48:16 2012 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,180 +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 <http://www.gnu.org/licenses/>.
- *
- *
- * 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)
- *
- */
-
-/* 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 "../util/symtable.hh"
-#include "search_constant_type.hh"
-#include "absyntax_utils.hh"
-#include "../main.hh" // required for ERROR() and ERROR_MSG() macros.
-
-
-
-symbol_c *search_constant_type_c::get_type(symbol_c *constant) {
- return (symbol_c *)constant->accept(*this);
-}
-
-
-/*********************/
-/* B 1.2 - Constants */
-/*********************/
-
-/******************************/
-/* B 1.2.1 - Numeric Literals */
-/******************************/
-/* Numeric literals without any explicit type cast have unknown data type,
- * so we continue considering them as their own basic data types until
- * they can be resolved (for example, when using '30+x' where 'x' is a LINT variable, the
- * numeric literal '30' must then be considered a LINT so the ADD function may be called
- * with all inputs of the same data type.
- * If 'x' were a SINT, then the '30' would have to be a SINT too!
- */
-void *search_constant_type_c::visit(real_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(neg_real_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(integer_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(neg_integer_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(binary_integer_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(octal_integer_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(hex_integer_c *symbol) {return (void *)symbol;}
-
-void *search_constant_type_c::visit(integer_literal_c *symbol)
- {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));}
-void *search_constant_type_c::visit(real_literal_c *symbol)
- {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));}
-void *search_constant_type_c::visit(bit_string_literal_c *symbol)
- {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));}
-void *search_constant_type_c::visit(boolean_literal_c *symbol)
- {return (void *)((symbol->type!=NULL)?symbol->type:symbol->value->accept(*this));}
-
-void *search_constant_type_c::visit(boolean_true_c *symbol) {return (void *)symbol;}
-void *search_constant_type_c::visit(boolean_false_c *symbol) {return (void *)symbol;}
-
-
-/*******************************/
-/* B.1.2.2 Character Strings */
-/*******************************/
-void *search_constant_type_c::visit(double_byte_character_string_c *symbol) {return (void *)&wstring_type_name;}
-void *search_constant_type_c::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 *search_constant_type_c::visit(neg_time_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */
-void *search_constant_type_c::visit(duration_c *symbol) {return (void *)(symbol->type_name);}
-void *search_constant_type_c::visit(fixed_point_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */
-void *search_constant_type_c::visit(interval_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */
-
-/************************************/
-/* B 1.2.3.2 - Time of day and Date */
-/************************************/
-void *search_constant_type_c::visit(time_of_day_c *symbol) {return (void *)(symbol->type_name);}
-void *search_constant_type_c::visit(daytime_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */
-void *search_constant_type_c::visit(date_c *symbol) {return (void *)(symbol->type_name);}
-void *search_constant_type_c::visit(date_literal_c *symbol) {ERROR; return NULL;} /* this member function should never be called. */
-void *search_constant_type_c::visit(date_and_time_c *symbol) {return (void *)(symbol->type_name);}
-
-/********************************/
-/* B 1.3.3 - Derived data types */
-/********************************/
-void *search_constant_type_c::visit(enumerated_value_c *symbol) {
- if (symbol->type != NULL)
- return (void *)(symbol->type);
-
- symbol_c *value_type = enumerated_value_symtable.find_value(symbol->value);
- if (value_type == enumerated_value_symtable.end_value())
- return NULL;
- return (void *)value_type;
-}
-
-
-
-
-invalid_type_name_c search_constant_type_c::invalid_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;
-
-safetime_type_name_c search_constant_type_c::safetime_type_name;
-safetod_type_name_c search_constant_type_c::safetod_type_name;
-safedt_type_name_c search_constant_type_c::safedt_type_name;
-safedate_type_name_c search_constant_type_c::safedate_type_name;
-safereal_type_name_c search_constant_type_c::safereal_type_name;
-safesint_type_name_c search_constant_type_c::safesint_type_name;
-safelint_type_name_c search_constant_type_c::safelint_type_name;
-safedint_type_name_c search_constant_type_c::safedint_type_name;
-safedword_type_name_c search_constant_type_c::safedword_type_name;
-safeudint_type_name_c search_constant_type_c::safeudint_type_name;
-safeword_type_name_c search_constant_type_c::safeword_type_name;
-safewstring_type_name_c search_constant_type_c::safewstring_type_name;
-safestring_type_name_c search_constant_type_c::safestring_type_name;
-safelword_type_name_c search_constant_type_c::safelword_type_name;
-safeuint_type_name_c search_constant_type_c::safeuint_type_name;
-safelreal_type_name_c search_constant_type_c::safelreal_type_name;
-safebyte_type_name_c search_constant_type_c::safebyte_type_name;
-safeusint_type_name_c search_constant_type_c::safeusint_type_name;
-safeulint_type_name_c search_constant_type_c::safeulint_type_name;
-safebool_type_name_c search_constant_type_c::safebool_type_name;
-safeint_type_name_c search_constant_type_c::safeint_type_name;
-
-