absyntax_utils/search_var_instance_decl.cc
author Manuele Conti <conti.ma@alice.it>
Sat, 21 Apr 2012 17:42:07 +0200
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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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/* Search in a VAR* END_VAR declaration for the delcration of the specified variable instance. 
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 * Will return:
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 *     - the declaration itself (get_decl() )
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 *     - the type of declaration in which the variable was declared (get_vartype() )
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 *
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 * The variable instance may NOT be a member of a structure of a memeber
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 * of a structure of an element of an array of ...
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 *
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 * For example, considering the following 'variables':
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 *    window.points[1].coordinate.x
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 *    window.points[1].colour
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 *    offset[99]
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 *
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 *   passing a reference to 'points', 'points[1]', 'points[1].colour', 'colour'
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 *    ARE NOT ALLOWED!
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 *
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 * This class must only be passed the name of the variable that will appear
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 * in the variable declaration. In the above examples, this would be
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 *   'window.points[1].coordinate.x'
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 *   'window.points[1].coordinate'
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 *   'window.points[1]'
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 *   'window'
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 *   'window.points[1].colour'
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 *   'offset'
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 *   'offset[99]'
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 *
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 *
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 */
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/* Note: 
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 * Determining the declaration type of a specific variable instance (including
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 * function block instances) really means determining whether the variable was declared in a
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 *  VAR_INPUT
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 *  VAR_OUTPUT
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 *  VAR_IN_OUT
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 *  VAR
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 *  VAR_TEMP
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 *  VAR_EXTERNAL
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 *  VAR_GLOBAL
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 *  VAR <var_name> AT <location>   -> Located variable!
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 * 
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 */
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/* Note:
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 *  The current_type_decl that this class returns may reference the
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 * name of a type, or the type declaration itself!
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 * For an example of the first, consider a variable declared as ...
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 * x : AAA;
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 * where the AAA type is previously declared as whatever.
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 * For an example of the second, consider a variable declared as ...
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 * x : array of int [10];  ---->  is allowed
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 *
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 * If it is the first, we will return a reference to the name, if the second
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 * we return a reference to the declaration!!
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 */
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#include "absyntax_utils.hh"
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search_var_instance_decl_c::search_var_instance_decl_c(symbol_c *search_scope) {
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  this->current_vartype = none_vt;
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  this->search_scope = search_scope;
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  this->search_name = NULL;
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  this->current_type_decl = NULL;
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  this->current_option = none_opt;
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}
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symbol_c *search_var_instance_decl_c::get_decl(symbol_c *variable) {
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  this->current_vartype = none_vt;
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  this->current_option  = none_opt;
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  this->search_name = get_var_name_c::get_name(variable);
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  return (symbol_c *)search_scope->accept(*this);
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}
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unsigned int search_var_instance_decl_c::get_vartype(symbol_c *variable) {
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  this->current_vartype = none_vt;
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  this->current_option  = none_opt;
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  this->search_name = get_var_name_c::get_name(variable);
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  search_scope->accept(*this);
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  return this->current_vartype;
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}
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unsigned int search_var_instance_decl_c::get_option(symbol_c *variable) {
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  this->current_vartype = none_vt;
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  this->current_option  = none_opt;
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  this->search_name = get_var_name_c::get_name(variable);
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  search_scope->accept(*this);
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  return this->current_option;
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}
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d48f53715f77 Re-write of stage3 code (done by Manuele and I), re-write of search_varfb_instance_type_c (done by myself), and several other bug fixes.
Mario de Sousa <msousa@fe.up.pt>
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181
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/***************************/
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/* B 0 - Programming Model */
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/***************************/
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void *search_var_instance_decl_c::visit(library_c *symbol) {
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  /* we do not want to search multiple declaration scopes,
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   * so we do not visit all the functions, function blocks, etc...
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   */
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  return NULL;
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}
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/******************************************/
217
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/* B 1.4.3 - Declaration & Initialization */
181
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/******************************************/
217
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181
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/* edge -> The F_EDGE or R_EDGE directive */
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// SYM_REF2(edge_declaration_c, edge, var1_list)
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// TODO
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void *search_var_instance_decl_c::visit(constant_option_c *symbol) {
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  current_option = constant_opt;
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  return NULL;
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}
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void *search_var_instance_decl_c::visit(retain_option_c *symbol) {
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  current_option = retain_opt;
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  return NULL;
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}
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void *search_var_instance_decl_c::visit(non_retain_option_c *symbol) {
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  current_option = non_retain_opt;
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  return NULL;
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}
181
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void *search_var_instance_decl_c::visit(input_declarations_c *symbol) {
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  current_vartype = input_vt;
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
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  if (NULL != symbol->option)  
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    symbol->option->accept(*this);
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  void *res = symbol->input_declaration_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
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    current_option  = none_opt;
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  }
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  return res;
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}
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/* VAR_OUTPUT [RETAIN | NON_RETAIN] var_init_decl_list END_VAR */
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/* option -> may be NULL ! */
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void *search_var_instance_decl_c::visit(output_declarations_c *symbol) {
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  current_vartype = output_vt;
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
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  if (NULL != symbol->option)
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    symbol->option->accept(*this);
181
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  void *res = symbol->var_init_decl_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
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    current_option  = none_opt;
181
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  }
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  return res;
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}
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/*  VAR_IN_OUT var_declaration_list END_VAR */
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void *search_var_instance_decl_c::visit(input_output_declarations_c *symbol) {
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  current_vartype = inoutput_vt;
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
181
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  void *res = symbol->var_declaration_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
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  }
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  return res;
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}
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202
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Catarina Boucinha <ccb@fe.up.pt>
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/* ENO : BOOL */
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void *search_var_instance_decl_c::visit(eno_param_declaration_c *symbol) {
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parents: 181
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  if (compare_identifiers(symbol->name, search_name) == 0)
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    return symbol->type;
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  return NULL;
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}
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da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
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181
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/* VAR [CONSTANT] var_init_decl_list END_VAR */
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/* option -> may be NULL ! */
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/* helper symbol for input_declarations */
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void *search_var_instance_decl_c::visit(var_declarations_c *symbol) {
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  current_vartype = private_vt;
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
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  if (NULL != symbol->option)
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    symbol->option->accept(*this);
181
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  void *res = symbol->var_init_decl_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
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    current_option = none_opt;
181
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  }
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  return res;
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}
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/*  VAR RETAIN var_init_decl_list END_VAR */
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void *search_var_instance_decl_c::visit(retentive_var_declarations_c *symbol) {
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  current_vartype = private_vt;
507
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  current_option  = retain_opt;
181
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  void *res = symbol->var_init_decl_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
507
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    current_option = none_opt;
181
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  }
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  return res;
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}
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/*  VAR [CONSTANT|RETAIN|NON_RETAIN] located_var_decl_list END_VAR */
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/* option -> may be NULL ! */
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//SYM_REF2(located_var_declarations_c, option, located_var_decl_list)
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void *search_var_instance_decl_c::visit(located_var_declarations_c *symbol) {
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  current_vartype = located_vt;
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
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  if (NULL != symbol->option)
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    symbol->option->accept(*this);
181
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  void *res = symbol->located_var_decl_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
507
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   247
    current_option  = none_opt;
181
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  }
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  return res;
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}
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/*| VAR_EXTERNAL [CONSTANT] external_declaration_list END_VAR */
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/* option -> may be NULL ! */
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//SYM_REF2(external_var_declarations_c, option, external_declaration_list)
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void *search_var_instance_decl_c::visit(external_var_declarations_c *symbol) {
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  current_vartype = external_vt;
507
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
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   258
  if (NULL != symbol->option)
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   259
    symbol->option->accept(*this);
181
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  void *res = symbol->external_declaration_list->accept(*this);
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   261
  if (res == NULL) {
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    current_vartype = none_vt;
507
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    current_option = none_opt;
181
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  }
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  return res;
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}
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/*| VAR_GLOBAL [CONSTANT|RETAIN] global_var_decl_list END_VAR */
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/* option -> may be NULL ! */
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//SYM_REF2(global_var_declarations_c, option, global_var_decl_list)
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void *search_var_instance_decl_c::visit(global_var_declarations_c *symbol) {
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  current_vartype = global_vt;
507
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manuele.conti@sirius-es.it
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  current_option  = none_opt; /* not really required. Just to make the code more readable */
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  if (NULL != symbol->option)
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    symbol->option->accept(*this);
181
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  void *res = symbol->global_var_decl_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
507
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    current_option = none_opt;
181
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  }
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  return res;
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}
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/* var1_list is one of the following...
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 *    simple_spec_init_c *
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 *    subrange_spec_init_c *
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 *    enumerated_spec_init_c *
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 */
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// SYM_REF2(var1_init_decl_c, var1_list, spec_init)
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void *search_var_instance_decl_c::visit(var1_init_decl_c *symbol) {
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  current_type_decl = symbol->spec_init;
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  return symbol->var1_list->accept(*this);
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}
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/* var1_list ',' variable_name */
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// SYM_LIST(var1_list_c)
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void *search_var_instance_decl_c::visit(var1_list_c *symbol) {
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  list_c *list = symbol;
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  for(int i = 0; i < list->n; i++) {
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    if (compare_identifiers(list->elements[i], search_name) == 0)
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   /* by now, current_type_decl should be != NULL */
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      return current_type_decl;
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  }
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  return NULL;
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}
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/* name_list ':' function_block_type_name ASSIGN structure_initialization */
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   308
/* structure_initialization -> may be NULL ! */
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void *search_var_instance_decl_c::visit(fb_name_decl_c *symbol) {
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  current_type_decl = symbol->function_block_type_name;
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  return symbol->fb_name_list->accept(*this);
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}
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   313
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/* name_list ',' fb_name */
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void *search_var_instance_decl_c::visit(fb_name_list_c *symbol) {
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  list_c *list = symbol;
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  for(int i = 0; i < list->n; i++) {
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    if (compare_identifiers(list->elements[i], search_name) == 0)
504
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Mario de Sousa <msousa@fe.up.pt>
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    /* by now, current_fb_declaration should be != NULL */
181
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      return current_type_decl;
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  }
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  return NULL;
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}
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/* var1_list ':' array_spec_init */
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// SYM_REF2(array_var_init_decl_c, var1_list, array_spec_init)
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void *search_var_instance_decl_c::visit(array_var_init_decl_c *symbol) {
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  current_type_decl = symbol->array_spec_init;
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  return symbol->var1_list->accept(*this);
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}
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   331
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   332
/*  var1_list ':' initialized_structure */
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   333
// SYM_REF2(structured_var_init_decl_c, var1_list, initialized_structure)
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   334
void *search_var_instance_decl_c::visit(structured_var_init_decl_c *symbol) {
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  current_type_decl = symbol->initialized_structure;
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  return symbol->var1_list->accept(*this);
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}
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   338
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/*  var1_list ':' array_specification */
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// SYM_REF2(array_var_declaration_c, var1_list, array_specification)
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void *search_var_instance_decl_c::visit(array_var_declaration_c *symbol) {
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  current_type_decl = symbol->array_specification;
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  return symbol->var1_list->accept(*this);
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}
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/*  var1_list ':' structure_type_name */
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// SYM_REF2(structured_var_declaration_c, var1_list, structure_type_name)
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void *search_var_instance_decl_c::visit(structured_var_declaration_c *symbol) {
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  current_type_decl = symbol->structure_type_name;
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  return symbol->var1_list->accept(*this);
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   351
}
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   352
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   353
/*  [variable_name] location ':' located_var_spec_init */
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   354
/* variable_name -> may be NULL ! */
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   355
// SYM_REF4(located_var_decl_c, variable_name, location, located_var_spec_init, unused)
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   356
// TODO!!
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   357
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   358
/*  global_var_name ':' (simple_specification|subrange_specification|enumerated_specification|array_specification|prev_declared_structure_type_name|function_block_type_name */
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// SYM_REF2(external_declaration_c, global_var_name, specification)
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   360
void *search_var_instance_decl_c::visit(external_declaration_c *symbol) {
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   361
  if (compare_identifiers(symbol->global_var_name, search_name) == 0)
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   362
      return symbol->specification;
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   363
  return NULL;
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   364
}
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   365
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   366
/*| global_var_spec ':' [located_var_spec_init|function_block_type_name] */
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   367
/* type_specification ->may be NULL ! */
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   368
// SYM_REF2(global_var_decl_c, global_var_spec, type_specification)
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   369
void *search_var_instance_decl_c::visit(global_var_decl_c *symbol) {
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   370
  if (symbol->type_specification != NULL) {
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   371
    current_type_decl = symbol->type_specification;
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   372
    return symbol->global_var_spec->accept(*this);
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   373
  }
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  else
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    return NULL;
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   376
}
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   377
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   378
/*| global_var_name location */
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   379
//SYM_REF2(global_var_spec_c, global_var_name, location)
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   380
void *search_var_instance_decl_c::visit(global_var_spec_c *symbol) {
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   381
  if (symbol->global_var_name != NULL && compare_identifiers(symbol->global_var_name, search_name) == 0)
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   382
      return current_type_decl;
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   383
  else
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   384
    return symbol->location->accept(*this);
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   385
}
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   386
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   387
/*| global_var_list ',' global_var_name */
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   388
//SYM_LIST(global_var_list_c)
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   389
void *search_var_instance_decl_c::visit(global_var_list_c *symbol) {
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   390
  list_c *list = symbol;
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   391
  for(int i = 0; i < list->n; i++) {
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   392
    if (compare_identifiers(list->elements[i], search_name) == 0)
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   393
      /* by now, current_type_decl should be != NULL */
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   394
      return current_type_decl;
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   395
  }
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   396
  return NULL;
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   397
}
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diff changeset
   398
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   399
/*  [variable_name] location ':' located_var_spec_init */
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   400
/* variable_name -> may be NULL ! */
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   401
//SYM_REF4(located_var_decl_c, variable_name, location, located_var_spec_init, unused)
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   402
void *search_var_instance_decl_c::visit(located_var_decl_c *symbol) {
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   403
  if (symbol->variable_name != NULL && compare_identifiers(symbol->variable_name, search_name) == 0)
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   404
    return symbol->located_var_spec_init;
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diff changeset
   405
  else {
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   406
    current_type_decl = symbol->located_var_spec_init;
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   407
    return symbol->location->accept(*this);
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diff changeset
   408
  }
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   409
}
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   410
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   411
/*| global_var_spec ':' [located_var_spec_init|function_block_type_name] */
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   412
/* type_specification ->may be NULL ! */
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   413
// SYM_REF2(global_var_decl_c, global_var_spec, type_specification)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   414
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   415
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   416
/*  AT direct_variable */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   417
// SYM_REF2(location_c, direct_variable, unused)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   418
void *search_var_instance_decl_c::visit(location_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   419
  if (compare_identifiers(symbol->direct_variable, search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   420
    return current_type_decl;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   421
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   422
    return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   423
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   424
        
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   425
/*| global_var_list ',' global_var_name */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   426
// SYM_LIST(global_var_list_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   427
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   428
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   429
/*  var1_list ':' single_byte_string_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   430
// SYM_REF2(single_byte_string_var_declaration_c, var1_list, single_byte_string_spec)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   431
void *search_var_instance_decl_c::visit(single_byte_string_var_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   432
  current_type_decl = symbol->single_byte_string_spec;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   433
  return symbol->var1_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   434
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   435
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   436
/*  STRING ['[' integer ']'] [ASSIGN single_byte_character_string] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   437
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   438
/* single_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   439
// SYM_REF2(single_byte_string_spec_c, integer, single_byte_character_string)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   440
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   441
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   442
/*  var1_list ':' double_byte_string_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   443
// SYM_REF2(double_byte_string_var_declaration_c, var1_list, double_byte_string_spec)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   444
void *search_var_instance_decl_c::visit(double_byte_string_var_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   445
  current_type_decl = symbol->double_byte_string_spec;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   446
  return symbol->var1_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   447
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   448
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   449
/*  WSTRING ['[' integer ']'] [ASSIGN double_byte_character_string] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   450
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   451
/* double_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   452
// SYM_REF2(double_byte_string_spec_c, integer, double_byte_character_string)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   453
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   454
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   455
/*  variable_name incompl_location ':' var_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   456
// SYM_REF4(incompl_located_var_decl_c, variable_name, incompl_location, var_spec, unused)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   457
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   458
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   459
/*  AT incompl_location_token */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   460
// SYM_TOKEN(incompl_location_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   461
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   462
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   463
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   464
/**************************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   465
/* B.1.5 - Program organization units */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   466
/**************************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   467
/***********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   468
/* B 1.5.1 - Functions */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   469
/***********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   470
// SYM_REF4(function_declaration_c, derived_function_name, type_name, var_declarations_list, function_body)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   471
void *search_var_instance_decl_c::visit(function_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   472
  /* functions have a variable named after themselves, to store
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   473
   * the variable that will be returned!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   474
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   475
  if (compare_identifiers(symbol->derived_function_name, search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   476
      return symbol->type_name;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   477
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   478
  /* no need to search through all the body, so we only
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   479
   * visit the variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   480
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   481
  return symbol->var_declarations_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   482
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   483
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   484
/*****************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   485
/* B 1.5.2 - Function Blocks */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   486
/*****************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   487
void *search_var_instance_decl_c::visit(function_block_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   488
  /* no need to search through all the body, so we only
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   489
   * visit the variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   490
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   491
  return symbol->var_declarations->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   492
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   493
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   494
/**********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   495
/* B 1.5.3 - Programs */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   496
/**********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   497
void *search_var_instance_decl_c::visit(program_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   498
  /* no need to search through all the body, so we only
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   499
   * visit the variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   500
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   501
  return symbol->var_declarations->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   502
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   503
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   504
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   505
/********************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   506
/* B 1.7 Configuration elements */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   507
/********************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   508
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   509
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   510
CONFIGURATION configuration_name
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   511
   optional_global_var_declarations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   512
   (resource_declaration_list | single_resource_declaration)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   513
   optional_access_declarations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   514
   optional_instance_specific_initializations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   515
END_CONFIGURATION
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   516
*/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   517
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   518
SYM_REF6(configuration_declaration_c, configuration_name, global_var_declarations, resource_declarations, access_declarations, instance_specific_initializations, unused)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   519
*/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   520
void *search_var_instance_decl_c::visit(configuration_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   521
  /* no need to search through all the configuration, so we only
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   522
   * visit the global variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   523
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   524
  if (symbol->global_var_declarations != NULL)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   525
    return symbol->global_var_declarations->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   526
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   527
    return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   528
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   529
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   530
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   531
RESOURCE resource_name ON resource_type_name
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   532
   optional_global_var_declarations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   533
   single_resource_declaration
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   534
END_RESOURCE
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   535
*/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   536
// SYM_REF4(resource_declaration_c, resource_name, resource_type_name, global_var_declarations, resource_declaration)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   537
void *search_var_instance_decl_c::visit(resource_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   538
  /* no need to search through all the resource, so we only
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   539
   * visit the global variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   540
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   541
  if (symbol->global_var_declarations != NULL)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   542
    return symbol->global_var_declarations->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   543
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   544
    return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   545
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   546
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   547
/* task_configuration_list program_configuration_list */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   548
// SYM_REF2(single_resource_declaration_c, task_configuration_list, program_configuration_list)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   549
void *search_var_instance_decl_c::visit(single_resource_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   550
  /* no need to search through all the resource,
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   551
   * and there is no global variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   552
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   553
  return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   554
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   555