absyntax_utils/search_var_instance_decl.cc
author Mario de Sousa <msousa@fe.up.pt>
Tue, 12 Jun 2012 17:07:40 +0100
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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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search_var_instance_decl_c::vt_t 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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search_var_instance_decl_c::opt_t 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.
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531
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/* This is a temporary fix. Hopefully, once I clean up stage4 code, and I change the way
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 * we generate C code, this function will no longer be needed!
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 */
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#include <typeinfo>  /* required for typeid() */
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bool search_var_instance_decl_c::type_is_complex(symbol_c *symbol) {
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  symbol_c *decl;
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  search_base_type_c search_base_type;
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  decl = this->get_decl(symbol);
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  if (NULL == decl) ERROR;
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  decl = search_base_type.get_basetype_decl(decl);
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  if (NULL == decl) ERROR;
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  return ((typeid( *(decl) ) == typeid( array_specification_c                )) ||
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//        (typeid( *(decl) ) == typeid( array_spec_init_c                    )) ||  /* does not seem to be necessary */
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          (typeid( *(decl) ) == typeid( structure_type_declaration_c         )) ||  
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          (typeid( *(decl) ) == typeid( structure_element_declaration_list_c )) ||
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//        (typeid( *(decl) ) == typeid( structure_type_declaration_c         )) ||  /* does not seem to be necessary */
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          (typeid( *(decl) ) == typeid( initialized_structure_c              ))
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         );
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}
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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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/******************************************/
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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);
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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 */
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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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/* ENO : BOOL */
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void *search_var_instance_decl_c::visit(eno_param_declaration_c *symbol) {
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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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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;
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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;
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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;
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->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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    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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  if (NULL != symbol->option)
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    symbol->option->accept(*this);
181
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  void *res = symbol->external_declaration_list->accept(*this);
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  if (res == NULL) {
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    current_vartype = none_vt;
507
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manuele.conti@sirius-es.it
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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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  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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   302
    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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   310
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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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   321
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   322
/* 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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   328
   /* by now, current_type_decl should be != NULL */
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      return current_type_decl;
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   330
  }
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  return NULL;
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   332
}
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   333
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   334
/* name_list ':' function_block_type_name ASSIGN structure_initialization */
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   335
/* structure_initialization -> may be NULL ! */
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   336
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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   339
}
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   340
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   341
/* name_list ',' fb_name */
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   342
void *search_var_instance_decl_c::visit(fb_name_list_c *symbol) {
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   343
  list_c *list = symbol;
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  for(int i = 0; i < list->n; i++) {
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   345
    if (compare_identifiers(list->elements[i], search_name) == 0)
504
f8d422b98315 Fix bug by expanding permissible data input of search_var_instance_decl_c
Mario de Sousa <msousa@fe.up.pt>
parents: 417
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   346
    /* by now, current_fb_declaration should be != NULL */
181
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   347
      return current_type_decl;
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   348
  }
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   349
  return NULL;
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   350
}
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   351
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   352
/* var1_list ':' array_spec_init */
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   353
// SYM_REF2(array_var_init_decl_c, var1_list, array_spec_init)
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   354
void *search_var_instance_decl_c::visit(array_var_init_decl_c *symbol) {
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   355
  current_type_decl = symbol->array_spec_init;
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   356
  return symbol->var1_list->accept(*this);
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   357
}
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   358
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   359
/*  var1_list ':' initialized_structure */
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   360
// SYM_REF2(structured_var_init_decl_c, var1_list, initialized_structure)
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   361
void *search_var_instance_decl_c::visit(structured_var_init_decl_c *symbol) {
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   362
  current_type_decl = symbol->initialized_structure;
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   363
  return symbol->var1_list->accept(*this);
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   364
}
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   365
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   366
/*  var1_list ':' array_specification */
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   367
// SYM_REF2(array_var_declaration_c, var1_list, array_specification)
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   368
void *search_var_instance_decl_c::visit(array_var_declaration_c *symbol) {
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   369
  current_type_decl = symbol->array_specification;
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   370
  return symbol->var1_list->accept(*this);
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   371
}
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   372
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   373
/*  var1_list ':' structure_type_name */
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   374
// SYM_REF2(structured_var_declaration_c, var1_list, structure_type_name)
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   375
void *search_var_instance_decl_c::visit(structured_var_declaration_c *symbol) {
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   376
  current_type_decl = symbol->structure_type_name;
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   377
  return symbol->var1_list->accept(*this);
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   378
}
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   379
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   380
/*  [variable_name] location ':' located_var_spec_init */
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   381
/* variable_name -> may be NULL ! */
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   382
// SYM_REF4(located_var_decl_c, variable_name, location, located_var_spec_init, unused)
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   383
// TODO!!
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   384
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   385
/*  global_var_name ':' (simple_specification|subrange_specification|enumerated_specification|array_specification|prev_declared_structure_type_name|function_block_type_name */
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   386
// SYM_REF2(external_declaration_c, global_var_name, specification)
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   387
void *search_var_instance_decl_c::visit(external_declaration_c *symbol) {
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   388
  if (compare_identifiers(symbol->global_var_name, search_name) == 0)
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   389
      return symbol->specification;
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   390
  return NULL;
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   391
}
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diff changeset
   392
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   393
/*| global_var_spec ':' [located_var_spec_init|function_block_type_name] */
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   394
/* type_specification ->may be NULL ! */
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   395
// SYM_REF2(global_var_decl_c, global_var_spec, type_specification)
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   396
void *search_var_instance_decl_c::visit(global_var_decl_c *symbol) {
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   397
  if (symbol->type_specification != NULL) {
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   398
    current_type_decl = symbol->type_specification;
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   399
    return symbol->global_var_spec->accept(*this);
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diff changeset
   400
  }
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diff changeset
   401
  else
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   402
    return NULL;
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diff changeset
   403
}
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diff changeset
   404
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   405
/*| global_var_name location */
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   406
//SYM_REF2(global_var_spec_c, global_var_name, location)
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   407
void *search_var_instance_decl_c::visit(global_var_spec_c *symbol) {
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parents:
diff changeset
   408
  if (symbol->global_var_name != NULL && compare_identifiers(symbol->global_var_name, search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   409
      return current_type_decl;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   410
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   411
    return symbol->location->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   412
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   413
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   414
/*| global_var_list ',' global_var_name */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   415
//SYM_LIST(global_var_list_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   416
void *search_var_instance_decl_c::visit(global_var_list_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   417
  list_c *list = symbol;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   418
  for(int i = 0; i < list->n; i++) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   419
    if (compare_identifiers(list->elements[i], search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   420
      /* by now, current_type_decl should be != NULL */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   421
      return current_type_decl;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   422
  }
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   423
  return NULL;
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
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   426
/*  [variable_name] location ':' located_var_spec_init */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   427
/* variable_name -> may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   428
//SYM_REF4(located_var_decl_c, variable_name, location, located_var_spec_init, unused)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   429
void *search_var_instance_decl_c::visit(located_var_decl_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   430
  if (symbol->variable_name != NULL && compare_identifiers(symbol->variable_name, search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   431
    return symbol->located_var_spec_init;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   432
  else {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   433
    current_type_decl = symbol->located_var_spec_init;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   434
    return symbol->location->accept(*this);
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
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   437
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   438
/*| global_var_spec ':' [located_var_spec_init|function_block_type_name] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   439
/* type_specification ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   440
// 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
   441
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   442
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   443
/*  AT direct_variable */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   444
// SYM_REF2(location_c, direct_variable, unused)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   445
void *search_var_instance_decl_c::visit(location_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   446
  if (compare_identifiers(symbol->direct_variable, search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   447
    return current_type_decl;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   448
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   449
    return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   450
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   451
        
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   452
/*| global_var_list ',' global_var_name */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   453
// SYM_LIST(global_var_list_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   454
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   455
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   456
/*  var1_list ':' single_byte_string_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   457
// 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
   458
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
   459
  current_type_decl = symbol->single_byte_string_spec;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   460
  return symbol->var1_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   461
}
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
/*  STRING ['[' integer ']'] [ASSIGN single_byte_character_string] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   464
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   465
/* single_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   466
// 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
   467
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   468
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   469
/*  var1_list ':' double_byte_string_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   470
// 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
   471
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
   472
  current_type_decl = symbol->double_byte_string_spec;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   473
  return symbol->var1_list->accept(*this);
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
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   476
/*  WSTRING ['[' integer ']'] [ASSIGN double_byte_character_string] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   477
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   478
/* double_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   479
// 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
   480
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   481
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   482
/*  variable_name incompl_location ':' var_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   483
// 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
   484
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   485
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   486
/*  AT incompl_location_token */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   487
// SYM_TOKEN(incompl_location_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   488
// TODO!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   489
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
/**************************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   492
/* B.1.5 - Program organization units */
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 1.5.1 - Functions */
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
// 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
   498
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
   499
  /* functions have a variable named after themselves, to store
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   500
   * the variable that will be returned!!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   501
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   502
  if (compare_identifiers(symbol->derived_function_name, search_name) == 0)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   503
      return symbol->type_name;
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
  /* 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
   506
   * visit the variable declarations...!
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
  return symbol->var_declarations_list->accept(*this);
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
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   511
/*****************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   512
/* B 1.5.2 - Function Blocks */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   513
/*****************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   514
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
   515
  /* 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
   516
   * visit the variable declarations...!
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
  return symbol->var_declarations->accept(*this);
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
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   521
/**********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   522
/* B 1.5.3 - Programs */
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
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
   525
  /* 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
   526
   * visit the variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   527
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   528
  return symbol->var_declarations->accept(*this);
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
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   532
/********************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   533
/* B 1.7 Configuration elements */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   534
/********************************/
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
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   537
CONFIGURATION configuration_name
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   538
   optional_global_var_declarations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   539
   (resource_declaration_list | single_resource_declaration)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   540
   optional_access_declarations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   541
   optional_instance_specific_initializations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   542
END_CONFIGURATION
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   543
*/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   544
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   545
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
   546
*/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   547
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
   548
  /* 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
   549
   * visit the global variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   550
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   551
  if (symbol->global_var_declarations != NULL)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   552
    return symbol->global_var_declarations->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   553
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   554
    return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   555
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   556
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   557
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   558
RESOURCE resource_name ON resource_type_name
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   559
   optional_global_var_declarations
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   560
   single_resource_declaration
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   561
END_RESOURCE
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   562
*/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   563
// 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
   564
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
   565
  /* 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
   566
   * visit the global variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   567
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   568
  if (symbol->global_var_declarations != NULL)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   569
    return symbol->global_var_declarations->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   570
  else
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   571
    return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   572
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   573
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   574
/* task_configuration_list program_configuration_list */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   575
// 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
   576
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
   577
  /* no need to search through all the resource,
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   578
   * and there is no global variable declarations...!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   579
   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   580
  return NULL;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   581
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   582