mario@181: /*
msousa@265: * matiec - a compiler for the programming languages defined in IEC 61131-3
mario@181: *
msousa@265: * Copyright (C) 2009-2011 Mario de Sousa (msousa@fe.up.pt)
Edouard@279: * Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant
mario@181: *
msousa@265: * This program is free software: you can redistribute it and/or modify
msousa@265: * it under the terms of the GNU General Public License as published by
msousa@265: * the Free Software Foundation, either version 3 of the License, or
msousa@265: * (at your option) any later version.
msousa@265: *
msousa@265: * This program is distributed in the hope that it will be useful,
msousa@265: * but WITHOUT ANY WARRANTY; without even the implied warranty of
msousa@265: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
msousa@265: * GNU General Public License for more details.
msousa@265: *
msousa@265: * You should have received a copy of the GNU General Public License
msousa@265: * along with this program. If not, see .
msousa@265: *
mario@181: *
mario@181: * This code is made available on the understanding that it will not be
mario@181: * used in safety-critical situations without a full and competent review.
mario@181: */
mario@181:
mario@181: /*
msousa@265: * An IEC 61131-3 compiler.
mario@181: *
mario@181: * Based on the
mario@181: * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
mario@181: *
mario@181: */
mario@181:
mario@181:
mario@181: /*
mario@181: * This is the main stage 3a file.
mario@181: *
mario@181: * In stage 3a some helpful symbol tables are instanciated and populated.
mario@181: * These symbol tables wll then be used by stage3b and atage4 code generators.
mario@181: */
mario@181:
mario@181:
mario@181:
mario@181:
mario@181: #ifndef _SEARCH_UTILS_HH
mario@181: #define _SEARCH_UTILS_HH
mario@181:
mario@181: // #include /* required for NULL */
mario@181: #include "../util/symtable.hh"
mario@181: #include "../util/dsymtable.hh"
mario@181: #include "../absyntax/absyntax.hh"
mario@181: #include "../absyntax/visitor.hh"
mario@181:
mario@181:
mario@181:
mario@181: /* returns 0 if the names are equal!! Case is ignored. */
mario@181: int compare_identifiers(symbol_c *ident1, symbol_c *ident2);
mario@181:
msousa@350: /* extract the value of an integer from an integer_c object !! */
msousa@350: int extract_integer(symbol_c *integer);
msousa@350:
mario@181: /* A symbol table with all globally declared functions... */
mario@181: extern function_declaration_c null_symbol1;
msousa@350: typedef dsymtable_c function_symtable_t;
msousa@350: extern function_symtable_t function_symtable;
mario@181:
mario@181: /* A symbol table with all globally declared functions block types... */
mario@181: extern function_block_declaration_c null_symbol2;
mario@181: extern symtable_c function_block_type_symtable;
mario@181:
mario@181: /* A symbol table with all globally declared program types... */
mario@181: extern program_declaration_c null_symbol3;
mario@181: extern symtable_c program_type_symtable;
mario@181:
mario@181: /* A symbol table with all user declared type definitions... */
mario@181: /* Note that function block types and program types have their
mario@181: * own symbol tables, so do not get placed in this symbol table!
msousa@338: *
msousa@338: * The symbol_c * associated to the value will point to the data type declaration.
mario@181: */
mario@181: extern symbol_c null_symbol4;
mario@181: extern symtable_c type_symtable;
mario@181:
laurent@328: /* A symbol table with all values declared for enumerated type... */
msousa@338: /* Notes:
msousa@338: * - if the value is defined multiple times the value
laurent@328: * is the null pointer.
msousa@338: *
msousa@338: * - The stored symbol_c * associated to the value points to the enumerated_type_name
msousa@338: * (i.e. the name of the enumerated data type) in which the the value/identifier
msousa@338: * is used/declared.
msousa@338: *
msousa@338: * - We could re-use the null_symbol4 object, but it is safer to use a distinct object
msousa@338: * (i.e. it might make it easier to find strange bugs).
laurent@328: */
msousa@338: extern symbol_c null_symbol5;
msousa@338: extern symtable_c enumerated_value_symtable;
mario@181:
mario@181:
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181:
mario@181: #include "spec_init_separator.hh"
laurent@377: #include "array_dimension_iterator.hh"
laurent@347: #include "case_element_iterator.hh"
mario@181: #include "function_param_iterator.hh"
mario@181: #include "function_call_iterator.hh"
mario@181: #include "function_call_param_iterator.hh"
mario@181: #include "type_initial_value.hh"
mario@181: #include "search_fb_instance_decl.hh"
mario@181: #include "search_fb_typedecl.hh"
mario@181: #include "search_base_type.hh"
mario@181: #include "search_var_instance_decl.hh"
mario@181: #include "decompose_var_instance_name.hh"
mario@181: #include "search_varfb_instance_type.hh"
mario@181: #include "search_constant_type.hh"
ccb@202: #include "search_il_operand_type.hh"
mario@181: #include "search_expression_type.hh"
ccb@202: #include "add_en_eno_param_decl.hh"
ccb@202: #include "get_sizeof_datatype.hh"
mario@181: #include "get_function_type.h"
msousa@459: #include "search_il_label.hh"
mario@181:
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181: /***********************************************************************/
mario@181:
mario@181:
mario@181:
mario@181:
mario@181: void absyntax_utils_init(symbol_c *tree_root);
mario@181:
mario@181:
mario@181: #endif /* _SEARCH_UTILS_HH */