absyntax_utils/function_param_iterator.cc
author Manuele Conti <conti.ma@alice.it>
Wed, 16 May 2012 00:15:32 +0200
changeset 561 30a327be60d4
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child 587 1ecf916cc397
permissions -rw-r--r--
Fix SFC stage4 error.
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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 "absyntax_utils.hh"  /* required for extract_integer() */
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// #include "function_param_iterator.hh"  /* no longer required, aready included by absyntax_utils.hh */
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// #include "spec_init_separator.hh"  /* no longer required, aready included by absyntax_utils.hh */
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#include <stdlib.h>  /* required for strtol() */
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#include <string.h>
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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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/* compare the name of two __extensible__ function parameters.
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 * The usual use case is to have one of the parameters as used
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 * in the function declaration, and another as used in a formal function call.
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 *
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 * Will return:
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 *         < 0 : if two parameters are not compatible, or one is invalid
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 *        >= 0 : if both parameters ..........
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 */
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/*
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 *   ("in", "i0")      -> returns error (<0)
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 *   ("in1", "in")     -> returns error (<0)
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 *   ("in", "in")      -> returns error (<0)
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 *   ("in", "inw")     -> returns error (<0)
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 *   ("in", "in10.4")  -> returns error (<0)
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 *   ("in", "in10e")   -> returns error (<0)
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 *   ("in", "")        -> returns error (<0)
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 *   ("", "in10e")     -> returns error (<0)
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 *   ("in", "in0")     -> returns 0
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 *   ("in", "in9")     -> returns 9
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 *   ("in", "in42")    -> returns 42
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 *   ("in", "in-42")   -> returns -42 (error!)
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 */
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int function_param_iterator_c::cmp_extparam_names(const char* s1, const char* s2) {
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  int res;
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  char *endptr;
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  int len;
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  if ((s1 == NULL) || (s2 == NULL) || (*s1 == '\0') || (*s2 == '\0')) return -1;
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  len = strlen(s1);
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  if (strncasecmp(s1, s2, len)) return -2;
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  s1 = &s2[len];
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  if (*s1 == '\0') return -3;
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  res = strtol(s1, &endptr, 10);
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  if (*endptr != '\0') return -4;
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  return res;
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}
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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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        symbol_c *sym = list->elements[i];
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        extensible_input_parameter_c *extensible_parameter = dynamic_cast<extensible_input_parameter_c *>(sym);
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        if (extensible_parameter != NULL) {
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          sym = extensible_parameter->var_name;
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          current_param_is_extensible = true;
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          _first_extensible_param_index = extract_integer_value(extensible_parameter->first_index);
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        }
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        identifier_c *variable_name = dynamic_cast<identifier_c *>(sym);
202
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        if (variable_name == NULL) ERROR;
350
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        if (!current_param_is_extensible)
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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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        if (current_param_is_extensible) {
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          current_extensible_param_index = cmp_extparam_names(variable_name->value, search_param_name->value);
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          if (current_extensible_param_index >= 0)
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            /* FOUND! This is a compatible extensible parameter!! */
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            return (void *)variable_name;
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        }  
202
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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;
181
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}
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void* function_param_iterator_c::handle_single_param(symbol_c *var_name) {
202
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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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      extensible_input_parameter_c *extensible_parameter = dynamic_cast<extensible_input_parameter_c *>(var_name);
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      if (extensible_parameter != NULL) {
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        var_name = extensible_parameter->var_name;
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        current_param_is_extensible = true;
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dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
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        _first_extensible_param_index = extract_integer_value(extensible_parameter->first_index);
350
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      }
202
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      identifier_c *variable_name = dynamic_cast<identifier_c *>(var_name);
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      if (variable_name == NULL) ERROR;
350
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      if (!current_param_is_extensible)
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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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      if (current_param_is_extensible) {
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        current_extensible_param_index = cmp_extparam_names(variable_name->value, search_param_name->value);
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        if (current_extensible_param_index >= 0)
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          /* FOUND! This is a compatible extensible parameter!! */
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          return (void *)variable_name;
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      }  
202
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      break;
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   187
  } /* switch */
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  /* Not found! */
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  return NULL;
181
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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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   202
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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;
350
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  _first_extensible_param_index = -1;
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  current_param_is_extensible = false;
181
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  current_param_name = NULL;
424
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  current_param_type = NULL;
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  current_param_default_value = NULL;
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  last_returned_parameter = NULL; /* the last parameter returned by search() or next() */
202
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   212
}
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   213
181
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/* initialise the iterator object.
202
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   216
 * We must be given a reference to one of the following
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   217
 *     - function_declaration_c
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 *     - function_block_declaration_c
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   219
 *     - program_declaration_c
181
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 * that will be analysed...
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 */
202
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function_param_iterator_c::function_param_iterator_c(symbol_c *pou_decl) {
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   223
  /* do some consistency checks... */
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   224
  function_declaration_c       * f_decl = dynamic_cast<function_declaration_c       *>(pou_decl);
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   225
  function_block_declaration_c *fb_decl = dynamic_cast<function_block_declaration_c *>(pou_decl);
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   226
  program_declaration_c        * p_decl = dynamic_cast<program_declaration_c        *>(pou_decl);
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   227
426
78f31e12fc52 Better identification of erros in function/FB invocations.
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   228
  if ((NULL == f_decl) && (NULL == fb_decl) && (NULL == p_decl)) 
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   229
    ERROR;
202
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   230
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   231
  /* OK. Now initialise this object... */
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   232
  this->f_decl = pou_decl;
181
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  reset();
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   234
}
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202
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   236
181
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   238
/* Skip to the next parameter. After object creation,
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   239
 * the object references on parameter _before_ the first, so
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   240
 * this function must be called once to get the object to
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   241
 * reference the first parameter...
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   242
 *
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 * Returns the parameter's name!
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   244
 */
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   245
identifier_c *function_param_iterator_c::next(void) {
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   246
  void *res;
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  identifier_c *identifier;
202
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   248
 
350
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   249
  if (current_param_is_extensible) {
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   250
    current_extensible_param_index++;
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   251
    return current_param_name;
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   252
  }
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   253
  
424
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   254
  last_returned_parameter = NULL; 
181
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   255
  param_count = 0;
233
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diff changeset
   256
  en_eno_param_implicit = false;
181
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   257
  next_param++;
202
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   258
  current_operation = function_param_iterator_c::iterate_op;
181
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   259
  res = f_decl->accept(*this);
202
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   260
  if (res == NULL) 
181
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   261
    return NULL;
202
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   262
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   263
  symbol_c *sym = (symbol_c *)res;
350
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   264
  extensible_input_parameter_c *extensible_parameter = dynamic_cast<extensible_input_parameter_c *>(sym);
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   265
  if (extensible_parameter != NULL) {
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   266
    sym = extensible_parameter->var_name;
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    current_param_is_extensible = true;
547
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    _first_extensible_param_index = extract_integer_value(extensible_parameter->first_index);
350
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    current_extensible_param_index = _first_extensible_param_index;
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  }
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  identifier = dynamic_cast<identifier_c *>(sym);
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  if (identifier == NULL)
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    ERROR;
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  current_param_name = identifier;
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  last_returned_parameter = current_param_name; 
181
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  return current_param_name;
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}
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202
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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;
350
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  en_eno_param_implicit = false;
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  current_param_is_extensible = false;
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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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  last_returned_parameter = res_param_name; 
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  return res_param_name;
181
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}
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448
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identifier_c *function_param_iterator_c::search(const char *param_name) {
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  identifier_c   param_name_id(param_name);
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  return search(&param_name_id);
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}
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181
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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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  if (NULL == last_returned_parameter) 
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    return NULL;
181
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  return current_param_default_value;
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}
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   308
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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) {
424
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  if (NULL == last_returned_parameter) 
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    return NULL;
181
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  return current_param_type;
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}
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233
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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) {
424
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  if (NULL == last_returned_parameter) 
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   319
    ERROR;
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  return en_eno_param_implicit;
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}
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   322
350
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/* Returns if currently referenced parameter is an extensible parameter. */
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/* extensible paramters only occur in some standard functions, e.g. AND(word#34, word#44, word#65); */
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bool function_param_iterator_c::is_extensible_param(void) {
424
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   326
  if (NULL == last_returned_parameter) 
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   327
    ERROR;
350
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  return current_param_is_extensible;
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   329
}
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   330
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/* Returns the index of the current extensible parameter. */             
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/* If the current parameter is not an extensible paramter, returns -1 */
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   333
int function_param_iterator_c::extensible_param_index(void) {
424
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   334
  if (NULL == last_returned_parameter) 
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   335
    ERROR;
350
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  return (current_param_is_extensible? current_extensible_param_index : -1);
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}
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   338
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/* Returns the index of the first extensible parameter, or -1 if no extensible parameter found. */             
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/* WARNING: Will only return the correct value _after_ an extensible parameter has been found! */
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int function_param_iterator_c::first_extensible_param_index(void) {
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   342
  return _first_extensible_param_index;
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   343
}
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   344
181
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   345
/* 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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   348
function_param_iterator_c::param_direction_t function_param_iterator_c::param_direction(void) {
424
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   349
  if (NULL == last_returned_parameter) 
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   350
    ERROR;
181
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   351
  return current_param_direction;
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   352
}
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   353
233
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   354
void *function_param_iterator_c::visit(implicit_definition_c *symbol) {
350
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   355
	en_eno_param_implicit = true;
233
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   356
	return NULL;
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   357
}
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   358
181
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   359
/****************************************/
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   360
/* 1.4.3 - Declaration & Initialisation */
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   361
/****************************************/
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   362
void *function_param_iterator_c::visit(input_declarations_c *symbol) {
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   363
  TRACE("input_declarations_c");
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   364
  current_param_direction = direction_in;
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   365
  return symbol->input_declaration_list->accept(*this);
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   366
}
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   367
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   368
void *function_param_iterator_c::visit(input_declaration_list_c *symbol) {TRACE("input_declaration_list_c"); return iterate_list(symbol);}
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   369
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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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   371
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   372
void *function_param_iterator_c::visit(en_param_declaration_c *symbol) {
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  TRACE("en_param_declaration_c");
202
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   374
  /* It is OK to store these values in the current_param_XXX
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   375
   * variables, because if the desired parameter is not in the
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   376
   * variable list we will be analysing, the current_param_XXXX
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   377
   * variables will get overwritten when we visit the next
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   378
   * var1_init_decl_c list!
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   379
   */
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   380
  current_param_default_value = symbol->value;
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   381
  current_param_type = symbol->type;
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diff changeset
   382
350
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   383
  void *res = handle_single_param(symbol->name);
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diff changeset
   384
  
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   385
    /* If we have found the parameter we will be returning, we set the en_eno_param_implicit to TRUE if implicitly defined */
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diff changeset
   386
  if (res != NULL) symbol->method->accept(*this);
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diff changeset
   387
  
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diff changeset
   388
  return res;
181
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   389
}
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   390
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   391
/* var1_list ':' array_spec_init */
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   392
//SYM_REF2(array_var_init_decl_c, var1_list, array_spec_init)
235
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diff changeset
   393
void *function_param_iterator_c::visit(array_var_init_decl_c *symbol) {
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diff changeset
   394
  TRACE("array_var_init_decl_c");
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diff changeset
   395
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diff changeset
   396
  current_param_default_value = spec_init_sperator_c::get_init(symbol->array_spec_init);
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diff changeset
   397
  current_param_type = spec_init_sperator_c::get_spec(symbol->array_spec_init);
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   398
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   399
  return symbol->var1_list->accept(*this);
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   400
}
181
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   401
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   402
/*  var1_list ':' initialized_structure */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   403
//SYM_REF2(structured_var_init_decl_c, var1_list, initialized_structure)
235
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   404
void *function_param_iterator_c::visit(structured_var_init_decl_c *symbol) {
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   405
  TRACE("structured_var_init_decl_c");
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   406
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   407
  current_param_default_value = spec_init_sperator_c::get_init(symbol->initialized_structure);
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   408
  current_param_type = spec_init_sperator_c::get_spec(symbol->initialized_structure);
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   409
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   410
  return symbol->var1_list->accept(*this);
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   411
}
181
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
void *function_param_iterator_c::visit(output_declarations_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   414
  TRACE("output_declarations_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   415
  current_param_direction = direction_out;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   416
  return symbol->var_init_decl_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   417
}
350
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   418
181
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   419
void *function_param_iterator_c::visit(eno_param_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   420
  TRACE("eno_param_declaration_c");
202
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   421
  /* It is OK to store these values in the current_param_XXX
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   422
   * variables, because if the desired parameter is not in the
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   423
   * variable list we will be analysing, the current_param_XXXX
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   424
   * variables will get overwritten when we visit the next
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   425
   * var1_init_decl_c list!
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   426
   */
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   427
  current_param_default_value = NULL;
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   428
  current_param_type = symbol->type;
da1a8186f86f Initial (very rough) version of semantic checker (stage3)
Catarina Boucinha <ccb@fe.up.pt>
parents: 181
diff changeset
   429
350
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   430
  void *res = handle_single_param(symbol->name);
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   431
  
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   432
    /* If we have found the parameter we will be returning, we set the en_eno_param_implicit to TRUE if implicitly defined */
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   433
  if (res != NULL) symbol->method->accept(*this);
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   434
  
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   435
  return res;
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   436
}
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   437
181
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   438
void *function_param_iterator_c::visit(input_output_declarations_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   439
  TRACE("input_output_declarations_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   440
  current_param_direction = direction_inout;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   441
  return symbol->var_declaration_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   442
}
350
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   443
181
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   444
void *function_param_iterator_c::visit(var_declaration_list_c *symbol) {TRACE("var_declaration_list_c"); return iterate_list(symbol);}
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
/*  var1_list ':' array_specification */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   447
//SYM_REF2(array_var_declaration_c, var1_list, array_specification)
237
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   448
void *function_param_iterator_c::visit(array_var_declaration_c *symbol) {
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   449
	TRACE("array_var_declaration_c");
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   450
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   451
	current_param_default_value = NULL;
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   452
	current_param_type = symbol->array_specification;
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   453
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   454
	return symbol->var1_list->accept(*this);
cece842c7417 Adding support for using arrays in POU interface
laurent
parents: 235
diff changeset
   455
}
181
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
/*  var1_list ':' structure_type_name */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   458
//SYM_REF2(structured_var_declaration_c, var1_list, structure_type_name)
235
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   459
void *function_param_iterator_c::visit(structured_var_declaration_c *symbol) {
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   460
  TRACE("structured_var_declaration_c");
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   461
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   462
  current_param_default_value = NULL;
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   463
  current_param_type = symbol->structure_type_name;
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   464
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   465
  return symbol->var1_list->accept(*this);
ed66dc50f31a Bug on generate_c_inlinefcall fixed
laurent
parents: 233
diff changeset
   466
}
181
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   467
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   468
/* VAR [CONSTANT] var_init_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   469
void *function_param_iterator_c::visit(var_declarations_c *symbol) {TRACE("var_declarations_c"); return NULL;}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   470
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   471
/*| VAR_EXTERNAL [CONSTANT] external_declaration_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   472
/* option -> may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   473
// SYM_REF2(external_var_declarations_c, option, external_declaration_list)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   474
void *function_param_iterator_c::visit(external_var_declarations_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   475
  TRACE("external_var_declarations_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   476
  current_param_direction = direction_extref;
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   477
  return symbol->external_declaration_list->accept(*this);
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
/* helper symbol for external_var_declarations */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   481
/*| external_declaration_list external_declaration';' */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   482
// SYM_LIST(external_declaration_list_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   483
void *function_param_iterator_c::visit(external_declaration_list_c *symbol) {TRACE("external_declaration_list_c"); return iterate_list(symbol);}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   484
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   485
/*  global_var_name ':' (simple_specification|subrange_specification|enumerated_specification|array_specification|prev_declared_structure_type_name|function_block_type_name */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   486
//SYM_REF2(external_declaration_c, global_var_name, specification)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   487
void *function_param_iterator_c::visit(external_declaration_c *symbol) {
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   488
  TRACE("external_declaration_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   489
  /* 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
   490
   * variables, because if the desired parameter is not in the
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   491
   * variable list we will be analysing, the current_param_XXXX
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   492
   * variables will get overwritten when we visit the next
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   493
   * var1_init_decl_c list!
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
  current_param_default_value = spec_init_sperator_c::get_init(symbol->specification);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   496
  current_param_type = spec_init_sperator_c::get_spec(symbol->specification);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   497
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   498
  return handle_single_param(symbol->global_var_name);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   499
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   500
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   501
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   502
#if 0
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   503
/*| VAR_GLOBAL [CONSTANT|RETAIN] global_var_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   504
/* option -> may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   505
SYM_REF2(global_var_declarations_c, option, global_var_decl_list)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   506
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   507
/* helper symbol for global_var_declarations */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   508
/*| global_var_decl_list global_var_decl ';' */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   509
SYM_LIST(global_var_decl_list_c)
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
/*| 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
   512
/* type_specification ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   513
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
   514
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   515
/*| global_var_name location */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   516
SYM_REF2(global_var_spec_c, global_var_name, location)
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
/*  AT direct_variable */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   519
SYM_REF2(location_c, direct_variable, unused)
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
/*| global_var_list ',' global_var_name */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   522
SYM_LIST(global_var_list_c)
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
/*  var1_list ':' single_byte_string_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   525
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
   526
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   527
/*  STRING ['[' integer ']'] [ASSIGN single_byte_character_string] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   528
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   529
/* single_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   530
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
   531
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   532
/*  var1_list ':' double_byte_string_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   533
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
   534
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   535
/*  WSTRING ['[' integer ']'] [ASSIGN double_byte_character_string] */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   536
/* integer ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   537
/* double_byte_character_string ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   538
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
   539
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   540
/*| VAR [RETAIN|NON_RETAIN] incompl_located_var_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   541
/* option ->may be NULL ! */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   542
SYM_REF2(incompl_located_var_declarations_c, option, incompl_located_var_decl_list)
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
/* helper symbol for incompl_located_var_declarations */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   545
/*| incompl_located_var_decl_list incompl_located_var_decl ';' */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   546
SYM_LIST(incompl_located_var_decl_list_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   547
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   548
/*  variable_name incompl_location ':' var_spec */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   549
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
   550
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   551
/*  AT incompl_location_token */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   552
SYM_TOKEN(incompl_location_c)
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   553
#endif
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   554
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
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parents:
diff changeset
   556
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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parents:
diff changeset
   557
  TRACE("var1_init_decl_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   558
  /* 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
   559
   * variables, because if the desired parameter is not in the
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   560
   * 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
   561
   * 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
   562
   * var1_init_decl_c list!
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
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   563
   */
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mario
parents:
diff changeset
   564
  current_param_default_value = spec_init_sperator_c::get_init(symbol->spec_init);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   565
  current_param_type = spec_init_sperator_c::get_spec(symbol->spec_init);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   566
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   567
  return symbol->var1_list->accept(*this);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   568
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   569
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   570
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   571
void *function_param_iterator_c::visit(var1_list_c *symbol) {
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mario
parents:
diff changeset
   572
  TRACE("var1_list_c");
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   573
  return handle_param_list(symbol);
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   574
}
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   575
350
2c3c4dc34979 Support for semantic verification of calls to standard functions.
Mario de Sousa <msousa@fe.up.pt>
parents: 279
diff changeset
   576
181
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   577
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
   578
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
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parents:
diff changeset
   580
/***********************/
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parents:
diff changeset
   581
/* B 1.5.1 - Functions */
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parents:
diff changeset
   582
/***********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   583
void *function_param_iterator_c::visit(function_declaration_c *symbol) {TRACE("function_declaration_c"); return symbol->var_declarations_list->accept(*this);}
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parents:
diff changeset
   584
/* intermediate helper symbol for function_declaration */
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parents:
diff changeset
   585
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
   586
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
   587
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   588
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   589
/*****************************/
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parents:
diff changeset
   590
/* B 1.5.2 - Function Blocks */
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parents:
diff changeset
   591
/*****************************/
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parents:
diff changeset
   592
/*  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
   593
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
   594
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   595
/* intermediate helper symbol for function_declaration */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   596
/*  { io_var_declarations | other_var_declarations }   */
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parents:
diff changeset
   597
/*
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parents:
diff changeset
   598
 * NOTE: we re-use the var_declarations_list_c
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   599
 */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   600
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   601
/*  VAR_TEMP temp_var_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   602
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
   603
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
   604
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   605
/*  VAR NON_RETAIN var_init_decl_list END_VAR */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   606
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
   607
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   608
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   609
/**********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   610
/* B 1.5.3 - Programs */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   611
/**********************/
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   612
/*  PROGRAM program_type_name program_var_declarations_list function_block_body END_PROGRAM */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
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parents:
diff changeset
   613
// 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
   614
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
   615
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   616
/* intermediate helper symbol for program_declaration_c */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   617
/*  { io_var_declarations | other_var_declarations }   */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   618
/*
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   619
 * NOTE: we re-use the var_declarations_list_c
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   620
 */
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   621
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   622
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   623
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   624
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   625
38d6eb056260 Moving absyntax utility files out from stage4/generate_c
mario
parents:
diff changeset
   626