absyntax_utils/function_param_iterator.cc
author Mario de Sousa <msousa@fe.up.pt>
Fri, 10 Jun 2011 10:13:15 +0100
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permissions -rwxr-xr-x
Clean up some code.
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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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/*
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 * Function parameter iterator.
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 * Iterate through the in/out parameters of a function declaration.
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 * Function blocks are also suported.
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 *
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 * This is part of the 4th stage that generates
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 * a c++ source program equivalent to the IL and ST
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 * code.
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 */
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/* Given a function_declaration_c, iterate through each
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 * function in/out/inout parameter, returning the name
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 * of each parameter...function_param_iterator_c
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 */
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#include "function_param_iterator.hh"
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#include "spec_init_separator.hh"
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#include <strings.h>
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//#define DEBUG
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#ifdef DEBUG
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#define TRACE(classname) printf("\n____%s____\n",classname);
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#else
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#define TRACE(classname)
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#endif
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#define ERROR error_exit(__FILE__,__LINE__)
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/* function defined in main.cc */
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extern void error_exit(const char *file_name, int line_no);
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void* function_param_iterator_c::handle_param_list(list_c *list) {
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  switch (current_operation) {
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    case iterate_op:
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      if (next_param <= param_count + list->n)
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        return list->elements[next_param - param_count - 1];
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      /* the desired param is not on this list... */
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      param_count += list->n;
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      break;
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    case search_op:
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      for(int i = 0; i < list->n; i++) {
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        identifier_c *variable_name = dynamic_cast<identifier_c *>(list->elements[i]);
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        if (variable_name == NULL) ERROR;
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        if (strcasecmp(search_param_name->value, variable_name->value) == 0)
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          /* FOUND! This is the same parameter!! */
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          return (void *)variable_name;
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      }
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      break;
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  } /* switch */
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  /* Not found! */
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  return NULL;
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}
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void* function_param_iterator_c::handle_single_param(symbol_c *var_name) {
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  switch (current_operation) {
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    case iterate_op:
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      param_count++;
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      if (next_param == param_count)
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        return var_name;
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      break;
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    case search_op:
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      identifier_c *variable_name = dynamic_cast<identifier_c *>(var_name);
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      if (variable_name == NULL) ERROR;
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      if (strcasecmp(search_param_name->value, variable_name->value) == 0)
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        /* FOUND! This is the same parameter!! */
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        return (void *)variable_name;
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      break;
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  } /* switch */
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  /* Not found! */
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  return NULL;
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}
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void* function_param_iterator_c::iterate_list(list_c *list) {
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  void *res;
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  for (int i = 0; i < list->n; i++) {
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    res = list->elements[i]->accept(*this);
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    if (res != NULL)
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        return res;
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  }
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  return NULL;
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}
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/* start off at the first parameter once again... */
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void function_param_iterator_c::reset(void) {
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  next_param = param_count = 0;
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  current_param_name = NULL;
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  current_param_type = current_param_default_value = NULL;
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}
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/* initialise the iterator object.
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 * We must be given a reference to one of the following
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 *     - function_declaration_c
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 *     - function_block_declaration_c
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 *     - program_declaration_c
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 * that will be analysed...
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 */
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function_param_iterator_c::function_param_iterator_c(symbol_c *pou_decl) {
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  /* do some consistency checks... */
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  function_declaration_c       * f_decl = dynamic_cast<function_declaration_c       *>(pou_decl);
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  function_block_declaration_c *fb_decl = dynamic_cast<function_block_declaration_c *>(pou_decl);
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  program_declaration_c        * p_decl = dynamic_cast<program_declaration_c        *>(pou_decl);
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  if ((NULL == f_decl) && (NULL == fb_decl) && (NULL == p_decl)) ERROR;
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  /* OK. Now initialise this object... */
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  this->f_decl = pou_decl;
181
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  reset();
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}
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181
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/* Skip to the next parameter. After object creation,
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 * the object references on parameter _before_ the first, so
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 * this function must be called once to get the object to
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 * reference the first parameter...
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 *
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 * Returns the parameter's name!
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 */
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identifier_c *function_param_iterator_c::next(void) {
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  void *res;
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  identifier_c *identifier;
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  param_count = 0;
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  en_eno_param_implicit = false;
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  next_param++;
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  current_operation = function_param_iterator_c::iterate_op;
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  res = f_decl->accept(*this);
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  if (res == NULL) 
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    return NULL;
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  symbol_c *sym = (symbol_c *)res;
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  identifier = dynamic_cast<identifier_c *>(sym);
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  if (identifier == NULL)
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    ERROR;
181
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  current_param_name = identifier;
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  return current_param_name;
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}
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/* Search for the value passed to the parameter named <param_name>...  */
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identifier_c *function_param_iterator_c::search(symbol_c *param_name) {
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  if (NULL == param_name) ERROR;
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  search_param_name = dynamic_cast<identifier_c *>(param_name);
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  if (NULL == search_param_name) ERROR;
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  current_operation = function_param_iterator_c::search_op;
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  void *res = f_decl->accept(*this);
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  identifier_c *res_param_name = dynamic_cast<identifier_c *>((symbol_c *)res);
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  return res_param_name;
181
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}
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/* Returns the currently referenced parameter's default value,
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 * or NULL if none is specified in the function declrataion itself.
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 */
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symbol_c *function_param_iterator_c::default_value(void) {
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  return current_param_default_value;
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}
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/* Returns the currently referenced parameter's type name. */
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symbol_c *function_param_iterator_c::param_type(void) {
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  return current_param_type;
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}
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/* Returns if currently referenced parameter is an implicit defined EN/ENO parameter. */
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bool function_param_iterator_c::is_en_eno_param_implicit(void) {
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  return en_eno_param_implicit;
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}
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181
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/* Returns the currently referenced parameter's data passing direction.
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 * i.e. VAR_INPUT, VAR_OUTPUT or VAR_INOUT
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 */
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function_param_iterator_c::param_direction_t function_param_iterator_c::param_direction(void) {
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  return current_param_direction;
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}
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void *function_param_iterator_c::visit(implicit_definition_c *symbol) {
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	en_eno_param_implicit = current_operation == function_param_iterator_c::iterate_op;
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	return NULL;
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}
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181
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/****************************************/
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/* 1.4.3 - Declaration & Initialisation */
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/****************************************/
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void *function_param_iterator_c::visit(input_declarations_c *symbol) {
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  TRACE("input_declarations_c");
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  current_param_direction = direction_in;
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  return symbol->input_declaration_list->accept(*this);
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}
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void *function_param_iterator_c::visit(input_declaration_list_c *symbol) {TRACE("input_declaration_list_c"); return iterate_list(symbol);}
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void *function_param_iterator_c::visit(edge_declaration_c *symbol) {TRACE("edge_declaration_c"); return symbol->var1_list->accept(*this);}
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void *function_param_iterator_c::visit(en_param_declaration_c *symbol) {
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  TRACE("en_param_declaration_c");
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  /* It is OK to store these values in the current_param_XXX
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   * variables, because if the desired parameter is not in the
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   * variable list we will be analysing, the current_param_XXXX
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   * variables will get overwritten when we visit the next
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   * var1_init_decl_c list!
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   */
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  symbol->method->accept(*this);
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  current_param_default_value = symbol->value;
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  current_param_type = symbol->type;
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  return handle_single_param(symbol->name);
181
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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 *function_param_iterator_c::visit(array_var_init_decl_c *symbol) {
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  TRACE("array_var_init_decl_c");
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  current_param_default_value = spec_init_sperator_c::get_init(symbol->array_spec_init);
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  current_param_type = spec_init_sperator_c::get_spec(symbol->array_spec_init);
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  return symbol->var1_list->accept(*this);
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}
181
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/*  var1_list ':' initialized_structure */
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//SYM_REF2(structured_var_init_decl_c, var1_list, initialized_structure)
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void *function_param_iterator_c::visit(structured_var_init_decl_c *symbol) {
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  TRACE("structured_var_init_decl_c");
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  current_param_default_value = spec_init_sperator_c::get_init(symbol->initialized_structure);
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  current_param_type = spec_init_sperator_c::get_spec(symbol->initialized_structure);
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  return symbol->var1_list->accept(*this);
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}
181
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void *function_param_iterator_c::visit(output_declarations_c *symbol) {
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  TRACE("output_declarations_c");
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  current_param_direction = direction_out;
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  return symbol->var_init_decl_list->accept(*this);
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}
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void *function_param_iterator_c::visit(eno_param_declaration_c *symbol) {
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  TRACE("eno_param_declaration_c");
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  /* It is OK to store these values in the current_param_XXX
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   * variables, because if the desired parameter is not in the
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   * variable list we will be analysing, the current_param_XXXX
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   * variables will get overwritten when we visit the next
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   287
   * var1_init_decl_c list!
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diff changeset
   288
   */
233
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  symbol->method->accept(*this);
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   290
202
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   291
  current_param_default_value = NULL;
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   292
  current_param_type = symbol->type;
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   293
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  return handle_single_param(symbol->name);
181
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}
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   296
void *function_param_iterator_c::visit(input_output_declarations_c *symbol) {
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  TRACE("input_output_declarations_c");
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  current_param_direction = direction_inout;
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  return symbol->var_declaration_list->accept(*this);
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}
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void *function_param_iterator_c::visit(var_declaration_list_c *symbol) {TRACE("var_declaration_list_c"); return iterate_list(symbol);}
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   302
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   303
/*  var1_list ':' array_specification */
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//SYM_REF2(array_var_declaration_c, var1_list, array_specification)
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   305
void *function_param_iterator_c::visit(array_var_declaration_c *symbol) {
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	TRACE("array_var_declaration_c");
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   307
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	current_param_default_value = NULL;
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	current_param_type = symbol->array_specification;
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   310
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	return symbol->var1_list->accept(*this);
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   312
}
181
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   313
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   314
/*  var1_list ':' structure_type_name */
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   315
//SYM_REF2(structured_var_declaration_c, var1_list, structure_type_name)
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   316
void *function_param_iterator_c::visit(structured_var_declaration_c *symbol) {
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   317
  TRACE("structured_var_declaration_c");
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diff changeset
   318
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   319
  current_param_default_value = NULL;
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   320
  current_param_type = symbol->structure_type_name;
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diff changeset
   321
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   322
  return symbol->var1_list->accept(*this);
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diff changeset
   323
}
181
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   324
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   325
/* VAR [CONSTANT] var_init_decl_list END_VAR */
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   326
void *function_param_iterator_c::visit(var_declarations_c *symbol) {TRACE("var_declarations_c"); return NULL;}
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   327
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   328
/*| VAR_EXTERNAL [CONSTANT] external_declaration_list END_VAR */
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   329
/* option -> may be NULL ! */
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   330
// SYM_REF2(external_var_declarations_c, option, external_declaration_list)
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   331
void *function_param_iterator_c::visit(external_var_declarations_c *symbol) {
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   332
  TRACE("external_var_declarations_c");
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   333
  current_param_direction = direction_extref;
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   334
  return symbol->external_declaration_list->accept(*this);
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   335
}
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   336
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   337
/* helper symbol for external_var_declarations */
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   338
/*| external_declaration_list external_declaration';' */
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   339
// SYM_LIST(external_declaration_list_c)
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   340
void *function_param_iterator_c::visit(external_declaration_list_c *symbol) {TRACE("external_declaration_list_c"); return iterate_list(symbol);}
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   341
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   342
/*  global_var_name ':' (simple_specification|subrange_specification|enumerated_specification|array_specification|prev_declared_structure_type_name|function_block_type_name */
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   343
//SYM_REF2(external_declaration_c, global_var_name, specification)
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   344
void *function_param_iterator_c::visit(external_declaration_c *symbol) {
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   345
  TRACE("external_declaration_c");
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   346
  /* It is OK to store these values in the current_param_XXX
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   347
   * variables, because if the desired parameter is not in the
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   348
   * variable list we will be analysing, the current_param_XXXX
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   349
   * variables will get overwritten when we visit the next
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diff changeset
   350
   * var1_init_decl_c list!
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   351
   */
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   352
  current_param_default_value = spec_init_sperator_c::get_init(symbol->specification);
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   353
  current_param_type = spec_init_sperator_c::get_spec(symbol->specification);
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   354
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   355
  return handle_single_param(symbol->global_var_name);
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   356
}
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diff changeset
   357
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diff changeset
   358
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diff changeset
   359
#if 0
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   360
/*| VAR_GLOBAL [CONSTANT|RETAIN] global_var_decl_list END_VAR */
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   361
/* option -> may be NULL ! */
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   362
SYM_REF2(global_var_declarations_c, option, global_var_decl_list)
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diff changeset
   363
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diff changeset
   364
/* helper symbol for global_var_declarations */
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parents:
diff changeset
   365
/*| global_var_decl_list global_var_decl ';' */
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diff changeset
   366
SYM_LIST(global_var_decl_list_c)
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diff changeset
   367
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   368
/*| global_var_spec ':' [located_var_spec_init|function_block_type_name] */
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diff changeset
   369
/* type_specification ->may be NULL ! */
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diff changeset
   370
SYM_REF2(global_var_decl_c, global_var_spec, type_specification)
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diff changeset
   371
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diff changeset
   372
/*| global_var_name location */
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diff changeset
   373
SYM_REF2(global_var_spec_c, global_var_name, location)
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diff changeset
   374
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diff changeset
   375
/*  AT direct_variable */
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diff changeset
   376
SYM_REF2(location_c, direct_variable, unused)
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parents:
diff changeset
   377
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diff changeset
   378
/*| global_var_list ',' global_var_name */
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diff changeset
   379
SYM_LIST(global_var_list_c)
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parents:
diff changeset
   380
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diff changeset
   381
/*  var1_list ':' single_byte_string_spec */
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diff changeset
   382
SYM_REF2(single_byte_string_var_declaration_c, var1_list, single_byte_string_spec)
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parents:
diff changeset
   383
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parents:
diff changeset
   384
/*  STRING ['[' integer ']'] [ASSIGN single_byte_character_string] */
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parents:
diff changeset
   385
/* integer ->may be NULL ! */
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parents:
diff changeset
   386
/* single_byte_character_string ->may be NULL ! */
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parents:
diff changeset
   387
SYM_REF2(single_byte_string_spec_c, integer, single_byte_character_string)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   388
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   389
/*  var1_list ':' double_byte_string_spec */
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parents:
diff changeset
   390
SYM_REF2(double_byte_string_var_declaration_c, var1_list, double_byte_string_spec)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   391
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   392
/*  WSTRING ['[' integer ']'] [ASSIGN double_byte_character_string] */
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parents:
diff changeset
   393
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   394
/* double_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   395
SYM_REF2(double_byte_string_spec_c, integer, double_byte_character_string)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   396
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   397
/*| VAR [RETAIN|NON_RETAIN] incompl_located_var_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   398
/* option ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   399
SYM_REF2(incompl_located_var_declarations_c, option, incompl_located_var_decl_list)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   400
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   401
/* helper symbol for incompl_located_var_declarations */
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parents:
diff changeset
   402
/*| incompl_located_var_decl_list incompl_located_var_decl ';' */
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parents:
diff changeset
   403
SYM_LIST(incompl_located_var_decl_list_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   404
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   405
/*  variable_name incompl_location ':' var_spec */
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parents:
diff changeset
   406
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
   407
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   408
/*  AT incompl_location_token */
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diff changeset
   409
SYM_TOKEN(incompl_location_c)
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parents:
diff changeset
   410
#endif
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   411
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   412
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   413
void *function_param_iterator_c::visit(var1_init_decl_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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diff changeset
   414
  TRACE("var1_init_decl_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   415
  /* It is OK to store these values in the current_param_XXX
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   416
   * variables, because if the desired parameter is not in the
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   417
   * variable list we will be analysing, the current_param_XXXX
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   418
   * variables will get overwritten when we visit the next
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   419
   * var1_init_decl_c list!
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parents:
diff changeset
   420
   */
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diff changeset
   421
  current_param_default_value = spec_init_sperator_c::get_init(symbol->spec_init);
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diff changeset
   422
  current_param_type = spec_init_sperator_c::get_spec(symbol->spec_init);
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parents:
diff changeset
   423
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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diff changeset
   424
  return symbol->var1_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   425
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   426
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   427
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
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parents:
diff changeset
   429
void *function_param_iterator_c::visit(var1_list_c *symbol) {
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parents:
diff changeset
   430
  TRACE("var1_list_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   431
  return handle_param_list(symbol);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   432
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   433
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   434
void *function_param_iterator_c::visit(var_init_decl_list_c *symbol) {TRACE("var_init_decl_list_c"); return iterate_list(symbol);}
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
/* B 1.5.1 - Functions */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   439
/***********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   440
void *function_param_iterator_c::visit(function_declaration_c *symbol) {TRACE("function_declaration_c"); return symbol->var_declarations_list->accept(*this);}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   441
/* intermediate helper symbol for function_declaration */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   442
void *function_param_iterator_c::visit(var_declarations_list_c *symbol) {TRACE("var_declarations_list_c"); return iterate_list(symbol);}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   443
void *function_param_iterator_c::visit(function_var_decls_c *symbol) {TRACE("function_var_decls_c"); /* ignore */ return NULL;}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   444
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   445
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   446
/*****************************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   447
/* B 1.5.2 - Function Blocks */
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
/*  FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   450
void *function_param_iterator_c::visit(function_block_declaration_c *symbol) {TRACE("function_block_declaration_c"); return symbol->var_declarations->accept(*this);}
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
/* intermediate helper symbol for function_declaration */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   453
/*  { io_var_declarations | other_var_declarations }   */
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
 * NOTE: we re-use the var_declarations_list_c
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   456
 */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   457
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   458
/*  VAR_TEMP temp_var_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   459
void *function_param_iterator_c::visit(temp_var_decls_c *symbol) {TRACE("temp_var_decls_c"); /* ignore */ return NULL;}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   460
void *function_param_iterator_c::visit(temp_var_decls_list_c *symbol) {TRACE("temp_var_decls_list_c"); /* ignore */ return NULL;}
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
/*  VAR NON_RETAIN var_init_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   463
void *function_param_iterator_c::visit(non_retentive_var_decls_c *symbol) {TRACE("non_retentive_var_decls_c"); /* ignore */ return NULL;}
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
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
/* B 1.5.3 - Programs */
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
/*  PROGRAM program_type_name program_var_declarations_list function_block_body END_PROGRAM */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   470
// SYM_REF4(program_declaration_c, program_type_name, var_declarations, function_block_body, unused)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   471
void *function_param_iterator_c::visit(program_declaration_c *symbol) {TRACE("program_declaration_c"); return symbol->var_declarations->accept(*this);}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   472
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   473
/* intermediate helper symbol for program_declaration_c */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   474
/*  { io_var_declarations | other_var_declarations }   */
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
 * NOTE: we re-use the var_declarations_list_c
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
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   479
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
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