etisserant@0: /*
msousa@267:  *  matiec - a compiler for the programming languages defined in IEC 61131-3
etisserant@0:  *
msousa@267:  *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
Edouard@279:  *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant
etisserant@0:  *
msousa@267:  *  This program is free software: you can redistribute it and/or modify
msousa@267:  *  it under the terms of the GNU General Public License as published by
msousa@267:  *  the Free Software Foundation, either version 3 of the License, or
msousa@267:  *  (at your option) any later version.
msousa@267:  *
msousa@267:  *  This program is distributed in the hope that it will be useful,
msousa@267:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
msousa@267:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
msousa@267:  *  GNU General Public License for more details.
msousa@267:  *
msousa@267:  *  You should have received a copy of the GNU General Public License
msousa@267:  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
msousa@267:  *
etisserant@0:  *
etisserant@0:  * This code is made available on the understanding that it will not be
etisserant@0:  * used in safety-critical situations without a full and competent review.
etisserant@0:  */
etisserant@0: 
etisserant@0: /*
msousa@267:  * An IEC 61131-3 compiler.
etisserant@0:  *
etisserant@0:  * Based on the
etisserant@0:  * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
etisserant@0:  *
etisserant@0:  */
etisserant@0: 
etisserant@0: 
etisserant@0: /*
etisserant@0:  * Code to be included into the code generated by the 4th stage.
etisserant@0:  *
etisserant@0:  * This is part of the 4th stage that generates
etisserant@0:  * a ST and IL source program equivalent to the IL and ST
etisserant@0:  * code.
etisserant@0:  * This is expected to be used mainly in debuging the syntax
etisserant@0:  * and lexical parser, and as a starting point for other
etisserant@0:  * 4th stages.
etisserant@0:  */
etisserant@0: 
etisserant@0: 
etisserant@0: 
msousa@580: /* Compile with the following option, to print out the const_value of each symbol, which was filled in by constant_folding_c during stage3 */
msousa@580: // #define DEBUG_CONST_VALUE
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: // #include <stdio.h>  /* required for NULL */
etisserant@0: #include <string>
etisserant@0: #include <iostream>
etisserant@27: #include <sstream>
ccb@202: #include <typeinfo>
etisserant@0: #include "generate_iec.hh"
etisserant@0: 
etisserant@0: #include "../stage4.hh"
msousa@596: #include "../../main.hh" // required for ERROR() and ERROR_MSG() macros.
msousa@596: 
msousa@596: 
msousa@596: 
mjsousa@878: /***********************************************************************/
mjsousa@878: /***********************************************************************/
mjsousa@878: /***********************************************************************/
mjsousa@878: /***********************************************************************/
mjsousa@878: 
mjsousa@878: /* Parse command line options passed from main.c !! */
mjsousa@878: 
mjsousa@878: int  stage4_parse_options(char *options) {return 0;}
mjsousa@878: 
mjsousa@878: void stage4_print_options(void) {
mjsousa@878:   printf("          (no options available when generating IEC 61131-3 code)\n"); 
mjsousa@878: }
mjsousa@878: 
mjsousa@878: /***********************************************************************/
mjsousa@878: /***********************************************************************/
mjsousa@878: /***********************************************************************/
mjsousa@878: /***********************************************************************/
etisserant@0: 
etisserant@0: 
etisserant@0: //class generate_iec_c: public iterator_visitor_c {
etisserant@0: class generate_iec_c: public visitor_c {
etisserant@0:   private:
etisserant@0:     stage4out_c &s4o;
etisserant@0: 
etisserant@0: 
etisserant@0:   public:
etisserant@0:     generate_iec_c(stage4out_c *s4o_ptr): s4o(*s4o_ptr) {}
etisserant@0:     ~generate_iec_c(void) {}
etisserant@0: 
etisserant@0: 
etisserant@0:   private:
etisserant@0: 
msousa@580:     
msousa@580: void print_const_value(symbol_c *symbol) {
msousa@580: #ifdef DEBUG_CONST_VALUE
msousa@580:   if (NULL == symbol) return;
msousa@580:   bool first = true;
msousa@580:   
msousa@580:   if (NULL != symbol->const_value_uint64) {
msousa@580:     first?s4o.print("{"):s4o.print("; ");
msousa@580:     first = false;
msousa@580:     s4o.print("uint64:");
msousa@580:     if (symbol->const_value_uint64->status == symbol_c::cs_const_value)
msousa@580:       s4o.print_uint64(symbol->const_value_uint64->value);
msousa@580:     if (symbol->const_value_uint64->status == symbol_c::cs_overflow)
msousa@580:     s4o.print("OVERFLOW");
msousa@580:   }
msousa@580:   if (NULL != symbol->const_value_int64) {
msousa@580:     first?s4o.print("{"):s4o.print("; ");
msousa@580:     first = false;
msousa@580:     s4o.print("int64:");
msousa@580:     if (symbol->const_value_int64->status == symbol_c::cs_const_value)
msousa@580:       s4o.print_int64(symbol->const_value_int64->value);
msousa@580:     if (symbol->const_value_int64->status == symbol_c::cs_overflow)
msousa@580:     s4o.print("OVERFLOW");
msousa@580:   }
msousa@580:   if (NULL != symbol->const_value_real64) {
msousa@580:     first?s4o.print("{"):s4o.print("; ");
msousa@580:     first = false;
msousa@580:     s4o.print("real64:");
msousa@580:     if (symbol->const_value_real64->status == symbol_c::cs_const_value)
msousa@580:       s4o.print_real64(symbol->const_value_real64->value);
msousa@580:     if (symbol->const_value_real64->status == symbol_c::cs_overflow)
msousa@580:     s4o.print("OVERFLOW");
msousa@580:   }
msousa@580:   if (NULL != symbol->const_value_bool) {
msousa@580:     first?s4o.print("{"):s4o.print("; ");
msousa@580:     first = false;
msousa@580:     s4o.print("bool:");
msousa@580:     if (symbol->const_value_bool->status == symbol_c::cs_const_value)
msousa@580:       s4o.print((symbol->const_value_bool->value)?"true":"false");
msousa@580:     if (symbol->const_value_bool->status == symbol_c::cs_overflow)
msousa@580:     s4o.print("OVERFLOW");
msousa@580:   }
msousa@580:   if (!first) s4o.print("}");  
msousa@580: #endif
msousa@580:   return;
msousa@580: }
msousa@580: 
msousa@580: 
msousa@580: 
etisserant@0: void *print_token(token_c *token) {
msousa@580:   print_const_value(token);
etisserant@0:   return s4o.print(token->value);
etisserant@0: }
etisserant@0: 
msousa@580: 
etisserant@0: void *print_literal(symbol_c *type, symbol_c *value) {
msousa@580:   print_const_value(value);
msousa@257:   if (NULL != type) {
msousa@257:     type->accept(*this);
msousa@257:     s4o.print("#");
msousa@257:   }
etisserant@0:   value->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *print_list(list_c *list,
etisserant@0: 			       std::string pre_elem_str = "",
etisserant@0: 			       std::string inter_elem_str = "",
etisserant@0: 			       std::string post_elem_str = "") {
etisserant@0:   if (list->n > 0) {
etisserant@0:     s4o.print(pre_elem_str);
etisserant@0:     list->elements[0]->accept(*this);
etisserant@0:   }
etisserant@0: 
etisserant@0:   for(int i = 1; i < list->n; i++) {
etisserant@0:     s4o.print(inter_elem_str);
etisserant@0:     list->elements[i]->accept(*this);
etisserant@0:   }
etisserant@0: 
etisserant@0:   if (list->n > 0)
etisserant@0:     s4o.print(post_elem_str);
etisserant@0: 
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
msousa@580: void *print_binary_expression(symbol_c *symbol,
msousa@580: 			      symbol_c *l_exp,
etisserant@0: 			      symbol_c *r_exp,
etisserant@0: 			      const char *operation) {
msousa@580:   print_const_value(symbol);
etisserant@0:   s4o.print("(");
etisserant@0:   l_exp->accept(*this);
etisserant@0:   s4o.print(operation);
etisserant@0:   r_exp->accept(*this);
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
msousa@580: void *print_unary_expression(symbol_c *symbol,
msousa@580: 			     symbol_c *exp,
etisserant@0: 			     const char *operation) {
msousa@580:   print_const_value(symbol);
etisserant@0:   s4o.print(operation);
etisserant@0:   exp->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0:   public:
lbessard@143: 
lbessard@143: /*  EN/ENO */
ccb@202: #if 0
lbessard@143: void *visit(en_param_c *symbol) {
lbessard@143:   s4o.print("EN");
lbessard@143:   return NULL;
lbessard@143: }
lbessard@143: 
lbessard@143: void *visit(eno_param_c *symbol) {
lbessard@143:   s4o.print("ENO");
lbessard@143:   return NULL;
lbessard@143: }
ccb@202: void *visit(en_param_c *symbol) {
ccb@202:   return symbol->param_name->accept(*this);
ccb@202: }
ccb@202: 
ccb@202: void *visit(eno_param_c *symbol) {
ccb@202:   return symbol->param_name->accept(*this);
ccb@202: }
ccb@202: #endif
ccb@202: 
ccb@202: 
msousa@459: /* A class used to identify an entry (literal, variable, etc...) in the abstract syntax tree with an invalid data type */
msousa@459: /* This is only used from stage3 onwards. Stages 1 and 2 will never create any instances of invalid_type_name_c */
msousa@459: // SYM_REF0(invalid_type_name_c)
msousa@459: void *visit(invalid_type_name_c *symbol) {
msousa@459:   ERROR;
msousa@459:   return NULL;
msousa@459: }
ccb@202: 
lbessard@143: 
msousa@267: /******************/
msousa@267: /* 2.1.6 Pragmas  */
msousa@267: /******************/
msousa@267: void *visit(enable_code_generation_pragma_c*)  {s4o.print("{enable code generation}");  return NULL;}
msousa@267: void *visit(disable_code_generation_pragma_c*) {s4o.print("{disable code generation}"); return NULL;}
msousa@267: void *visit(pragma_c *symbol)                  {return print_token(symbol);}
etisserant@0: 
etisserant@0: 
etisserant@0: /***************************/
etisserant@0: /* B 0 - Programming Model */
etisserant@0: /***************************/
etisserant@0: void *visit(library_c *symbol) {return print_list(symbol);}
etisserant@0: 
etisserant@0: /*******************************************/
etisserant@0: /* B 1.1 - Letters, digits and identifiers */
etisserant@0: /*******************************************/
etisserant@0: void *visit(identifier_c *symbol) {return print_token(symbol);}
etisserant@0: 
etisserant@0: /*********************/
etisserant@0: /* B 1.2 - Constants */
etisserant@0: /*********************/
etisserant@0: 
etisserant@0: /******************************/
etisserant@0: /* B 1.2.1 - Numeric Literals */
etisserant@0: /******************************/
msousa@257: void *visit(real_c *symbol)               {return print_token(symbol);}
msousa@580: void *visit(neg_real_c *symbol)           {return print_unary_expression(symbol, symbol->exp, "-");}
msousa@257: void *visit(integer_c *symbol)            {return print_token(symbol);}
msousa@580: void *visit(neg_integer_c *symbol)        {return print_unary_expression(symbol, symbol->exp, "-");}
msousa@257: void *visit(binary_integer_c *symbol)     {return print_token(symbol);}
msousa@257: void *visit(octal_integer_c *symbol)      {return print_token(symbol);}
msousa@257: void *visit(hex_integer_c *symbol)        {return print_token(symbol);}
msousa@257: 
msousa@257: void *visit(integer_literal_c *symbol)    {return print_literal(symbol->type, symbol->value);}
msousa@257: void *visit(real_literal_c *symbol)       {return print_literal(symbol->type, symbol->value);}
etisserant@0: void *visit(bit_string_literal_c *symbol) {return print_literal(symbol->type, symbol->value);}
msousa@257: void *visit(boolean_literal_c *symbol)    {return print_literal(symbol->type, symbol->value);}
etisserant@0: 
etisserant@0: /* helper class for boolean_literal_c */
msousa@257: void *visit(boolean_true_c *symbol)       {s4o.print(/*"TRUE"*/"1"); return NULL;}
msousa@257: void *visit(boolean_false_c *symbol)      {s4o.print(/*"FALSE"*/"0"); return NULL;}
etisserant@0: 
etisserant@0: /*******************************/
etisserant@0: /* B.1.2.2   Character Strings */
etisserant@0: /*******************************/
etisserant@0: void *visit(double_byte_character_string_c *symbol) {return print_token(symbol);}
etisserant@0: void *visit(single_byte_character_string_c *symbol) {return print_token(symbol);}
etisserant@0: 
etisserant@0: 
etisserant@0: /***************************/
etisserant@0: /* B 1.2.3 - Time Literals */
etisserant@0: /***************************/
etisserant@0: 
etisserant@0: /************************/
etisserant@0: /* B 1.2.3.1 - Duration */
etisserant@0: /************************/
etisserant@0: void *visit(neg_time_c *symbol) {s4o.print("-"); return NULL;}
etisserant@0: 
etisserant@0: void *visit(duration_c *symbol) {
etisserant@0:   s4o.print("TIME#");
etisserant@0:   if (symbol->neg != NULL)
etisserant@0:     symbol->neg->accept(*this);
etisserant@0:   symbol->interval->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(fixed_point_c *symbol) {return print_token(symbol);}
etisserant@0: 
msousa@547: /* SYM_REF5(interval_c, days, hours, minutes, seconds, milliseconds) */
msousa@547: void *visit(interval_c *symbol) {
msousa@547:   if (NULL != symbol->days) {
msousa@547:     symbol->days->accept(*this);
msousa@547:     s4o.print("d");
msousa@547:   }
msousa@547: 
msousa@547:   if (NULL != symbol->hours) {
etisserant@0:     symbol->hours->accept(*this);
msousa@547:     s4o.print("h");
msousa@547:   }
msousa@547: 
msousa@547:   if (NULL != symbol->minutes) {
etisserant@0:     symbol->minutes->accept(*this);
msousa@547:     s4o.print("m");
msousa@547:   }
msousa@547: 
msousa@547:   if (NULL != symbol->seconds) {
etisserant@0:     symbol->seconds->accept(*this);
msousa@547:     s4o.print("s");
msousa@547:   }
msousa@547: 
msousa@547:   if (NULL != symbol->milliseconds) {
etisserant@0:     symbol->milliseconds->accept(*this);
msousa@547:     s4o.print("ms");
msousa@547:   }
msousa@547: 
msousa@547:   return NULL;
msousa@547: }
msousa@547: 
msousa@547: 
etisserant@0: 
etisserant@0: /************************************/
etisserant@0: /* B 1.2.3.2 - Time of day and Date */
etisserant@0: /************************************/
etisserant@0: 
etisserant@0: void *visit(time_of_day_c *symbol) {
etisserant@0:   s4o.print("TIME_OF_DAY#");
etisserant@0:   symbol->daytime->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(daytime_c *symbol) {
etisserant@0:   symbol->day_hour->accept(*this);
etisserant@0:   s4o.print(":");
etisserant@0:   symbol->day_minute->accept(*this);
etisserant@0:   s4o.print(":");
etisserant@0:   symbol->day_second->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: void *visit(date_c *symbol) {
etisserant@0:   s4o.print("DATE#");
etisserant@0:   symbol->date_literal->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(date_literal_c *symbol) {
etisserant@0:   symbol->year->accept(*this);
etisserant@0:   s4o.print("-");
etisserant@0:   symbol->month->accept(*this);
etisserant@0:   s4o.print("-");
etisserant@0:   symbol->day->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(date_and_time_c *symbol) {
etisserant@0:   s4o.print("DATE_AND_TIME#");
etisserant@0:   symbol->date_literal->accept(*this);
etisserant@0:   s4o.print("-");
etisserant@0:   symbol->daytime->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: /***********************************/
etisserant@0: /* B 1.3.1 - Elementary Data Types */
etisserant@0: /***********************************/
msousa@257: void *visit(time_type_name_c *symbol)        {s4o.print("TIME");        return NULL;}
msousa@257: void *visit(bool_type_name_c *symbol)        {s4o.print("BOOL");        return NULL;}
msousa@257: void *visit(sint_type_name_c *symbol)        {s4o.print("SINT");        return NULL;}
msousa@257: void *visit(int_type_name_c *symbol)         {s4o.print("INT");         return NULL;}
msousa@257: void *visit(dint_type_name_c *symbol)        {s4o.print("DINT");        return NULL;}
msousa@257: void *visit(lint_type_name_c *symbol)        {s4o.print("LINT");        return NULL;}
msousa@257: void *visit(usint_type_name_c *symbol)       {s4o.print("USINT");       return NULL;}
msousa@257: void *visit(uint_type_name_c *symbol)        {s4o.print("UINT");        return NULL;}
msousa@257: void *visit(udint_type_name_c *symbol)       {s4o.print("UDINT");       return NULL;}
msousa@257: void *visit(ulint_type_name_c *symbol)       {s4o.print("ULINT");       return NULL;}
msousa@257: void *visit(real_type_name_c *symbol)        {s4o.print("REAL");        return NULL;}
msousa@257: void *visit(lreal_type_name_c *symbol)       {s4o.print("LREAL");       return NULL;}
msousa@257: void *visit(date_type_name_c *symbol)        {s4o.print("DATE");        return NULL;}
msousa@257: void *visit(tod_type_name_c *symbol)         {s4o.print("TOD");         return NULL;}
msousa@257: void *visit(dt_type_name_c *symbol)          {s4o.print("DT");          return NULL;}
msousa@257: void *visit(byte_type_name_c *symbol)        {s4o.print("BYTE");        return NULL;}
msousa@257: void *visit(word_type_name_c *symbol)        {s4o.print("WORD");        return NULL;}
msousa@257: void *visit(lword_type_name_c *symbol)       {s4o.print("LWORD");       return NULL;}
msousa@257: void *visit(dword_type_name_c *symbol)       {s4o.print("DWORD");       return NULL;}
msousa@257: void *visit(string_type_name_c *symbol)      {s4o.print("STRING");      return NULL;}
msousa@257: void *visit(wstring_type_name_c *symbol)     {s4o.print("WSTRING");     return NULL;}
msousa@257: 
msousa@257: void *visit(safetime_type_name_c *symbol)    {s4o.print("SAFETIME");    return NULL;}
msousa@257: void *visit(safebool_type_name_c *symbol)    {s4o.print("SAFEBOOL");    return NULL;}
msousa@257: void *visit(safesint_type_name_c *symbol)    {s4o.print("SAFESINT");    return NULL;}
msousa@257: void *visit(safeint_type_name_c *symbol)     {s4o.print("SAFEINT");     return NULL;}
msousa@257: void *visit(safedint_type_name_c *symbol)    {s4o.print("SAFEDINT");    return NULL;}
msousa@257: void *visit(safelint_type_name_c *symbol)    {s4o.print("SAFELINT");    return NULL;}
msousa@257: void *visit(safeusint_type_name_c *symbol)   {s4o.print("SAFEUSINT");   return NULL;}
msousa@257: void *visit(safeuint_type_name_c *symbol)    {s4o.print("SAFEUINT");    return NULL;}
msousa@257: void *visit(safeudint_type_name_c *symbol)   {s4o.print("SAFEUDINT");   return NULL;}
msousa@257: void *visit(safeulint_type_name_c *symbol)   {s4o.print("SAFEULINT");   return NULL;}
msousa@257: void *visit(safereal_type_name_c *symbol)    {s4o.print("SAFEREAL");    return NULL;}
msousa@257: void *visit(safelreal_type_name_c *symbol)   {s4o.print("SAFELREAL");   return NULL;}
msousa@257: void *visit(safedate_type_name_c *symbol)    {s4o.print("SAFEDATE");    return NULL;}
msousa@257: void *visit(safetod_type_name_c *symbol)     {s4o.print("SAFETOD");     return NULL;}
msousa@257: void *visit(safedt_type_name_c *symbol)      {s4o.print("SAFEDT");      return NULL;}
msousa@257: void *visit(safebyte_type_name_c *symbol)    {s4o.print("SAFEBYTE");    return NULL;}
msousa@257: void *visit(safeword_type_name_c *symbol)    {s4o.print("SAFEWORD");    return NULL;}
msousa@257: void *visit(safelword_type_name_c *symbol)   {s4o.print("SAFELWORD");   return NULL;}
msousa@257: void *visit(safedword_type_name_c *symbol)   {s4o.print("SAFEDWORD");   return NULL;}
msousa@257: void *visit(safestring_type_name_c *symbol)  {s4o.print("SAFESTRING");  return NULL;}
msousa@257: void *visit(safewstring_type_name_c *symbol) {s4o.print("SAFEWSTRING"); return NULL;}
msousa@257: 
etisserant@0: 
etisserant@0: /********************************/
etisserant@0: /* B 1.3.3 - Derived data types */
etisserant@0: /********************************/
etisserant@0: /*  TYPE type_declaration_list END_TYPE */
etisserant@0: void *visit(data_type_declaration_c *symbol) {
etisserant@0:   s4o.print("TYPE\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->type_declaration_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print("END_TYPE\n\n\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* helper symbol for data_type_declaration */
etisserant@0: /*| type_declaration_list type_declaration ';' */
etisserant@0: void *visit(type_declaration_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /*  simple_type_name ':' simple_spec_init */
etisserant@0: void *visit(simple_type_declaration_c *symbol) {
etisserant@0:   symbol->simple_type_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->simple_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* simple_specification ASSIGN constant */
etisserant@0: void *visit(simple_spec_init_c *symbol) {
etisserant@0:   symbol->simple_specification->accept(*this);
etisserant@0:   if (symbol->constant != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->constant->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  subrange_type_name ':' subrange_spec_init */
etisserant@0: void *visit(subrange_type_declaration_c *symbol) {
etisserant@0:   symbol->subrange_type_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->subrange_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* subrange_specification ASSIGN signed_integer */
etisserant@0: void *visit(subrange_spec_init_c *symbol) {
etisserant@0:   symbol->subrange_specification->accept(*this);
etisserant@0:   if (symbol->signed_integer != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->signed_integer->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  integer_type_name '(' subrange')' */
etisserant@0: void *visit(subrange_specification_c *symbol) {
etisserant@0:   symbol->integer_type_name->accept(*this);
lbessard@98:   if (symbol->subrange != NULL) {
lbessard@98:     s4o.print("(");
lbessard@98:     symbol->subrange->accept(*this);
lbessard@98:     s4o.print(")");
lbessard@98:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  signed_integer DOTDOT signed_integer */
etisserant@0: void *visit(subrange_c *symbol) {
etisserant@0:   symbol->lower_limit->accept(*this);
etisserant@0:   s4o.print(" .. ");
etisserant@0:   symbol->upper_limit->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  enumerated_type_name ':' enumerated_spec_init */
etisserant@0: void *visit(enumerated_type_declaration_c *symbol) {
etisserant@0:   symbol->enumerated_type_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->enumerated_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* enumerated_specification ASSIGN enumerated_value */
etisserant@0: void *visit(enumerated_spec_init_c *symbol) {
etisserant@0:   symbol->enumerated_specification->accept(*this);
etisserant@0:   if (symbol->enumerated_value != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->enumerated_value->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for enumerated_specification->enumerated_spec_init */
etisserant@0: /* enumerated_value_list ',' enumerated_value */
etisserant@0: void *visit(enumerated_value_list_c *symbol) {print_list(symbol, "(", ", ", ")"); return NULL;}
etisserant@0: 
etisserant@0: /* enumerated_type_name '#' identifier */
etisserant@0: void *visit(enumerated_value_c *symbol) {
lbessard@144:   if (symbol->type != NULL) {
lbessard@144:     symbol->type->accept(*this);
lbessard@144:     s4o.print("#");
lbessard@144:   }
etisserant@0:   symbol->value->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  identifier ':' array_spec_init */
etisserant@0: void *visit(array_type_declaration_c *symbol) {
etisserant@0:   symbol->identifier->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->array_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* array_specification [ASSIGN array_initialization} */
etisserant@0: /* array_initialization may be NULL ! */
etisserant@0: void *visit(array_spec_init_c *symbol) {
etisserant@0:   symbol->array_specification->accept(*this);
etisserant@0:   if (symbol->array_initialization != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->array_initialization->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* ARRAY '[' array_subrange_list ']' OF non_generic_type_name */
etisserant@0: void *visit(array_specification_c *symbol) {
etisserant@0:   s4o.print("ARRAY [");
etisserant@0:   symbol->array_subrange_list->accept(*this);
etisserant@0:   s4o.print("] OF ");
etisserant@0:   symbol->non_generic_type_name->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for array_specification */
etisserant@0: /* array_subrange_list ',' subrange */
etisserant@0: void *visit(array_subrange_list_c *symbol) {print_list(symbol, "", ", "); return NULL;}
etisserant@0: 
etisserant@0: /* helper symbol for array_initialization */
etisserant@0: /* array_initial_elements_list ',' array_initial_elements */
etisserant@0: void *visit(array_initial_elements_list_c *symbol) {print_list(symbol, "[", ", ", "]"); return NULL;}
etisserant@0: 
etisserant@0: /* integer '(' [array_initial_element] ')' */
etisserant@0: /* array_initial_element may be NULL ! */
etisserant@0: void *visit(array_initial_elements_c *symbol) {
etisserant@0:   symbol->integer->accept(*this);
etisserant@0:   s4o.print("(");
etisserant@0:   if (symbol->array_initial_element != NULL)
etisserant@0:     symbol->array_initial_element->accept(*this);
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  structure_type_name ':' structure_specification */
etisserant@0: void *visit(structure_type_declaration_c *symbol) {
etisserant@0:   symbol->structure_type_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->structure_specification->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* structure_type_name ASSIGN structure_initialization */
etisserant@0: /* structure_initialization may be NULL ! */
etisserant@0: void *visit(initialized_structure_c *symbol) {
etisserant@0:   symbol->structure_type_name->accept(*this);
etisserant@0:   if (symbol->structure_initialization != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->structure_initialization->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for structure_declaration */
etisserant@0: /* structure_declaration:  STRUCT structure_element_declaration_list END_STRUCT */
etisserant@0: /* structure_element_declaration_list structure_element_declaration ';' */
etisserant@0: void *visit(structure_element_declaration_list_c *symbol) {
etisserant@0:   s4o.print("STRUCT\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n" + s4o.indent_spaces);
etisserant@0:   s4o.print("END_STRUCT");
etisserant@0:   s4o.indent_left();
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  structure_element_name ':' *_spec_init */
etisserant@0: void *visit(structure_element_declaration_c *symbol) {
etisserant@0:   symbol->structure_element_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for structure_initialization */
etisserant@0: /* structure_initialization: '(' structure_element_initialization_list ')' */
etisserant@0: /* structure_element_initialization_list ',' structure_element_initialization */
etisserant@0: void *visit(structure_element_initialization_list_c *symbol) {print_list(symbol, "(", ", ", ")"); return NULL;}
etisserant@0: 
etisserant@0: /*  structure_element_name ASSIGN value */
etisserant@0: void *visit(structure_element_initialization_c *symbol) {
etisserant@0:   symbol->structure_element_name->accept(*this);
etisserant@0:   s4o.print(" := ");
etisserant@0:   symbol->value->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  string_type_name ':' elementary_string_type_name string_type_declaration_size string_type_declaration_init */
etisserant@0: void *visit(string_type_declaration_c *symbol) {
etisserant@0:   symbol->string_type_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->elementary_string_type_name->accept(*this);
etisserant@0:   symbol->string_type_declaration_size->accept(*this);
etisserant@0:   if (symbol->string_type_declaration_init != NULL)
etisserant@0:     symbol->string_type_declaration_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
msousa@810: /*  function_block_type_name ASSIGN structure_initialization */
msousa@810: /* structure_initialization -> may be NULL ! */
msousa@810: void *visit(fb_spec_init_c *symbol) {
msousa@810:   symbol->function_block_type_name->accept(*this);
msousa@810:   if (symbol->structure_initialization != NULL) {
msousa@810:     s4o.print(" := ");
msousa@810:     symbol->structure_initialization->accept(*this);
msousa@810:   }
msousa@810:   return NULL;
msousa@810: }
etisserant@0: 
etisserant@0: 
etisserant@0: 
mjsousa@876: /* ref_spec:  REF_TO (non_generic_type_name | function_block_type_name) */
mjsousa@876: // SYM_REF1(ref_spec_c, type_name)
mjsousa@876: void *visit(ref_spec_c *symbol) {
mjsousa@876:   s4o.print("REF_TO ");
mjsousa@876:   symbol->type_name->accept(*this);
mjsousa@876:   return NULL;
mjsousa@876: }
mjsousa@876: 
mjsousa@876: /* For the moment, we do not support initialising reference data types */
mjsousa@909: /* ref_spec_init: ref_spec [ ASSIGN ref_initialization ]; */ 
mjsousa@909: /* NOTE: ref_initialization may be NULL!! */
mjsousa@909: // SYM_REF2(ref_spec_init_c, ref_spec, ref_initialization)
mjsousa@909: void *visit(ref_spec_init_c *symbol) {
mjsousa@909:   symbol->ref_spec->accept(*this);
mjsousa@909:   if (symbol->ref_initialization != NULL) {
mjsousa@909:     s4o.print(" := ");
mjsousa@909:     symbol->ref_initialization->accept(*this);
mjsousa@909:   }
mjsousa@909:   return NULL;
mjsousa@909: }
mjsousa@876: 
mjsousa@876: /* ref_type_decl: identifier ':' ref_spec_init */
mjsousa@876: // SYM_REF2(ref_type_decl_c, ref_type_name, ref_spec_init)
mjsousa@876: void *visit(ref_type_decl_c *symbol) {
mjsousa@876:   symbol->ref_type_name->accept(*this);
mjsousa@876:   s4o.print(" : ");
mjsousa@876:   symbol->ref_spec_init->accept(*this);
mjsousa@876:   return NULL;
mjsousa@876: }
mjsousa@876: 
mjsousa@876: 
mjsousa@876: 
mjsousa@876: 
mjsousa@876: 
mjsousa@876: 
mjsousa@876: 
mjsousa@876: 
etisserant@0: /*********************/
etisserant@0: /* B 1.4 - Variables */
etisserant@0: /*********************/
etisserant@0: void *visit(symbolic_variable_c *symbol) {
etisserant@0:   symbol->var_name->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /********************************************/
etisserant@0: /* B.1.4.1   Directly Represented Variables */
etisserant@0: /********************************************/
etisserant@0: void *visit(direct_variable_c *symbol) {return print_token(symbol);}
etisserant@0: 
etisserant@0: 
etisserant@0: /*************************************/
etisserant@0: /* B.1.4.2   Multi-element Variables */
etisserant@0: /*************************************/
etisserant@0: /*  subscripted_variable '[' subscript_list ']' */
etisserant@0: void *visit(array_variable_c *symbol) {
etisserant@0:   symbol->subscripted_variable->accept(*this);
etisserant@0:   s4o.print("[");
etisserant@0:   symbol->subscript_list->accept(*this);
etisserant@0:   s4o.print("]");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* subscript_list ',' subscript */
etisserant@0: void *visit(subscript_list_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
etisserant@0: /*  record_variable '.' field_selector */
etisserant@0: void *visit(structured_variable_c *symbol) {
etisserant@0:   symbol->record_variable->accept(*this);
etisserant@0:   s4o.print(".");
etisserant@0:   symbol->field_selector->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /******************************************/
etisserant@0: /* B 1.4.3 - Declaration & Initialisation */
etisserant@0: /******************************************/
etisserant@0: void *visit(constant_option_c *symbol) {s4o.print("CONSTANT"); return NULL;}
etisserant@0: void *visit(retain_option_c *symbol) {s4o.print("RETAIN"); return NULL;}
etisserant@0: void *visit(non_retain_option_c *symbol) {s4o.print("NON_RETAIN"); return NULL;}
etisserant@0: 
etisserant@0: /* VAR_INPUT [RETAIN | NON_RETAIN] input_declaration_list END_VAR */
etisserant@0: /* option -> the RETAIN/NON_RETAIN/<NULL> directive... */
etisserant@0: void *visit(input_declarations_c *symbol) {
ccb@202:   if (typeid(*(symbol->method)) == typeid(explicit_definition_c)) {
ccb@202:     s4o.print(s4o.indent_spaces); s4o.print("VAR_INPUT ");
ccb@202:     if (symbol->option != NULL)
ccb@202:       symbol->option->accept(*this);
ccb@202:     s4o.print("\n");
ccb@202:     s4o.indent_right();
ccb@202:     symbol->input_declaration_list->accept(*this);
ccb@202:     s4o.indent_left();
ccb@202:     s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
ccb@202:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for input_declarations */
etisserant@0: /*| input_declaration_list input_declaration ';' */
etisserant@0: void *visit(input_declaration_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /* edge -> The F_EDGE or R_EDGE directive */
etisserant@0: void *visit(edge_declaration_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : BOOL ");
etisserant@0:   symbol->edge->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
ccb@202: /* dummy classes only used as flags! */
ccb@202: void *visit(explicit_definition_c *symbol) {return NULL;}
ccb@202: void *visit(implicit_definition_c *symbol) {return NULL;}
ccb@202: 
ccb@202: /* EN : BOOL := 1 */
lbessard@146: void *visit(en_param_declaration_c *symbol) {
ccb@202:   if (typeid(*(symbol->method)) == typeid(explicit_definition_c)) {
ccb@202:     symbol->name->accept(*this);
ccb@202:     s4o.print(" : ");
msousa@805:     symbol->type_decl->accept(*this);
ccb@202:   }
ccb@202:   return NULL;
ccb@202: }
ccb@202: 
ccb@202: /* ENO : BOOL */
ccb@202: void *visit(eno_param_declaration_c *symbol) {
ccb@202:   if (typeid(*(symbol->method)) == typeid(explicit_definition_c)) {
ccb@202:     symbol->name->accept(*this);
ccb@202:     s4o.print(" : ");
ccb@202:     symbol->type->accept(*this);
ccb@202:   }
lbessard@146:   return NULL;
lbessard@146: }
etisserant@0: 
etisserant@0: void *visit(raising_edge_option_c *symbol) {
etisserant@0:   s4o.print("R_EDGE");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(falling_edge_option_c *symbol) {
etisserant@0:   s4o.print("F_EDGE");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* var1_list is one of the following...
etisserant@0:  *    simple_spec_init_c *
etisserant@0:  *    subrange_spec_init_c *
etisserant@0:  *    enumerated_spec_init_c *
etisserant@0:  */
etisserant@0: void *visit(var1_init_decl_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: void *visit(var1_list_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
msousa@350: /* | [var1_list ','] variable_name '..' */
msousa@350: /* NOTE: This is an extension to the standard!!! */
msousa@350: /* In order to be able to handle extensible standard functions
msousa@350:  * (i.e. standard functions that may have a variable number of
msousa@350:  * input parameters, such as AND(word#33, word#44, word#55, word#66),
msousa@350:  * we have extended the acceptable syntax to allow var_name '..'
msousa@350:  * in an input variable declaration.
msousa@350:  *
msousa@350:  * This allows us to parse the declaration of standard
msousa@350:  * extensible functions and load their interface definition
msousa@350:  * into the abstract syntax tree just like we do to other 
msousa@350:  * user defined functions.
msousa@350:  * This has the advantage that we can later do semantic
msousa@350:  * checking of calls to functions (be it a standard or user defined
msousa@350:  * function) in (almost) exactly the same way.
msousa@350:  *
msousa@350:  * Of course, we have a flag that disables this syntax when parsing user
msousa@350:  * written code, so we only allow this extra syntax while parsing the 
msousa@350:  * 'header' file that declares all the standard IEC 61131-3 functions.
msousa@350:  */
msousa@350: void *visit(extensible_input_parameter_c *symbol) {
msousa@350:   symbol->var_name->accept(*this);
msousa@350:   s4o.print(" .. ");
msousa@350:   return NULL;
msousa@350: }
msousa@350: 
etisserant@0: 
etisserant@0: /* var1_list ':' array_spec_init */
etisserant@0: void *visit(array_var_init_decl_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->array_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /*  var1_list ':' initialized_structure */
etisserant@0: void *visit(structured_var_init_decl_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->initialized_structure->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* name_list ':' function_block_type_name ASSIGN structure_initialization */
etisserant@0: /* structure_initialization -> may be NULL ! */
etisserant@0: void *visit(fb_name_decl_c *symbol) {
etisserant@0:   symbol->fb_name_list->accept(*this);
etisserant@0:   s4o.print(" : ");
msousa@810:   symbol->fb_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* name_list ',' fb_name */
etisserant@0: void *visit(fb_name_list_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
etisserant@0: /* VAR_OUTPUT [RETAIN | NON_RETAIN] var_init_decl_list END_VAR */
etisserant@0: /* option -> may be NULL ! */
etisserant@0: void *visit(output_declarations_c *symbol) {
ccb@202:   if (typeid(*(symbol->method)) == typeid(explicit_definition_c)) {
ccb@202:     s4o.print(s4o.indent_spaces); s4o.print("VAR_OUTPUT ");
ccb@202:     if (symbol->option != NULL)
ccb@202:       symbol->option->accept(*this);
ccb@202:     s4o.print("\n");
ccb@202:     s4o.indent_right();
ccb@202:     symbol->var_init_decl_list->accept(*this);
ccb@202:     s4o.indent_left();
ccb@202:     s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
ccb@202:   }
lbessard@146:   return NULL;
lbessard@146: }
lbessard@146: 
etisserant@0: /*  VAR_IN_OUT  END_VAR */
etisserant@0: void *visit(input_output_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR_IN_OUT ");
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_declaration_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for input_output_declarations */
etisserant@0: /* var_declaration_list var_declaration ';' */
etisserant@0: void *visit(var_declaration_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /*  var1_list ':' array_specification */
etisserant@0: void *visit(array_var_declaration_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->array_specification->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  var1_list ':' structure_type_name */
etisserant@0: void *visit(structured_var_declaration_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->structure_type_name->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* VAR [CONSTANT] var_init_decl_list END_VAR */
etisserant@0: /* option -> may be NULL ! */
etisserant@0: void *visit(var_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR ");
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_init_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  VAR RETAIN var_init_decl_list END_VAR */
etisserant@0: void *visit(retentive_var_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR RETAIN ");
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_init_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  VAR [CONSTANT|RETAIN|NON_RETAIN] located_var_decl_list END_VAR */
etisserant@0: /* option -> may be NULL ! */
etisserant@0: void *visit(located_var_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR ");
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->located_var_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for located_var_declarations */
etisserant@0: /* located_var_decl_list located_var_decl ';' */
etisserant@0: void *visit(located_var_decl_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /*  [variable_name] location ':' located_var_spec_init */
etisserant@0: /* variable_name -> may be NULL ! */
etisserant@0: void *visit(located_var_decl_c *symbol) {
etisserant@0:   if (symbol->variable_name != NULL) {
etisserant@0:     symbol->variable_name->accept(*this);
etisserant@0:     s4o.print(" ");
etisserant@0:   }
etisserant@0:   symbol->location->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->located_var_spec_init->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /*| VAR_EXTERNAL [CONSTANT] external_declaration_list END_VAR */
etisserant@0: /* option -> may be NULL ! */
etisserant@0: void *visit(external_var_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR_EXTERNAL ");
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->external_declaration_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for external_var_declarations */
etisserant@0: /*| external_declaration_list external_declaration';' */
etisserant@0: void *visit(external_declaration_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /*  global_var_name ':' (simple_specification|subrange_specification|enumerated_specification|array_specification|prev_declared_structure_type_name|function_block_type_name) */
etisserant@0: void *visit(external_declaration_c *symbol) {
etisserant@0:   symbol->global_var_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->specification->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*| VAR_GLOBAL [CONSTANT|RETAIN] global_var_decl_list END_VAR */
etisserant@0: /* option -> may be NULL ! */
etisserant@0: void *visit(global_var_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR_GLOBAL ");
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->global_var_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for global_var_declarations */
etisserant@0: /*| global_var_decl_list global_var_decl ';' */
etisserant@0: void *visit(global_var_decl_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /*| global_var_spec ':' [located_var_spec_init|function_block_type_name] */
etisserant@0: /* type_specification ->may be NULL ! */
etisserant@0: void *visit(global_var_decl_c *symbol) {
etisserant@0:   symbol->global_var_spec->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   if (symbol->type_specification != NULL)
etisserant@0:     symbol->type_specification->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*| global_var_name location */
etisserant@0: void *visit(global_var_spec_c *symbol) {
etisserant@0:   symbol->global_var_name->accept(*this);
etisserant@0:   s4o.print(" ");
etisserant@0:   symbol->location->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  AT direct_variable */
etisserant@0: void *visit(location_c *symbol) {
etisserant@0:   s4o.print("AT ");
etisserant@0:   symbol->direct_variable->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*| global_var_list ',' global_var_name */
etisserant@0: void *visit(global_var_list_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
etisserant@0: /*  var1_list ':' single_byte_string_spec */
etisserant@0: void *visit(single_byte_string_var_declaration_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->single_byte_string_spec->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
msousa@350: /*  single_byte_limited_len_string_spec [ASSIGN single_byte_character_string] */
etisserant@0: /* single_byte_character_string ->may be NULL ! */
etisserant@0: void *visit(single_byte_string_spec_c *symbol) {
msousa@350:   symbol->string_spec->accept(*this);
etisserant@0:   if (symbol->single_byte_character_string != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->single_byte_character_string->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
msousa@350: /*  STRING ['[' integer ']'] */
msousa@350: /* integer ->may be NULL ! */
msousa@350: void *visit(single_byte_limited_len_string_spec_c *symbol) {
msousa@350:   symbol->string_type_name->accept(*this);
msousa@350:   if (symbol->character_string_len != NULL) {
msousa@350:     s4o.print(" [");
msousa@350:     symbol->character_string_len->accept(*this);
msousa@350:     s4o.print("]");
msousa@350:   }
msousa@350:   return NULL;
msousa@350: }
msousa@350: 
etisserant@0: /*  var1_list ':' double_byte_string_spec */
etisserant@0: void *visit(double_byte_string_var_declaration_c *symbol) {
etisserant@0:   symbol->var1_list->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->double_byte_string_spec->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
msousa@350: /*  double_byte_limited_len_string_spec [ASSIGN double_byte_character_string] */
etisserant@0: /* integer ->may be NULL ! */
etisserant@0: /* double_byte_character_string ->may be NULL ! */
etisserant@0: void *visit(double_byte_string_spec_c *symbol) {
msousa@350:   symbol->string_spec->accept(*this);
etisserant@0:   if (symbol->double_byte_character_string != NULL) {
etisserant@0:     s4o.print(" := ");
etisserant@0:     symbol->double_byte_character_string->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
msousa@350: /* WSTRING ['[' integer ']'] */
msousa@350: /* integer ->may be NULL ! */
msousa@350: void *visit(double_byte_limited_len_string_spec_c *symbol) {
msousa@350:   symbol->string_type_name->accept(*this);
msousa@350:   if (symbol->character_string_len != NULL) {
msousa@350:     s4o.print(" [");
msousa@350:     symbol->character_string_len->accept(*this);
msousa@350:     s4o.print("]");
msousa@350:   }
msousa@350:   return NULL;
msousa@350: }
msousa@350: 
etisserant@0: /*| VAR [RETAIN|NON_RETAIN] incompl_located_var_decl_list END_VAR */
etisserant@0: /* option ->may be NULL ! */
etisserant@0: void *visit(incompl_located_var_declarations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("VAR ");
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->incompl_located_var_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for incompl_located_var_declarations */
etisserant@0: /*| incompl_located_var_decl_list incompl_located_var_decl ';' */
etisserant@0: void *visit(incompl_located_var_decl_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /*  variable_name incompl_location ':' var_spec */
etisserant@0: void *visit(incompl_located_var_decl_c *symbol) {
etisserant@0:   symbol->variable_name->accept(*this);
etisserant@0:   s4o.print(" ");
etisserant@0:   symbol->incompl_location->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->var_spec->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /*  AT incompl_location_token */
etisserant@0: void *visit(incompl_location_c *symbol) {
etisserant@0:   s4o.print(" AT ");
lbessard@10:   return print_token(symbol);
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* intermediate helper symbol for:
etisserant@0:  *  - non_retentive_var_decls
etisserant@0:  *  - output_declarations
etisserant@0:  */
etisserant@0: /* | var_init_decl_list var_init_decl ';' */
etisserant@0: void *visit(var_init_decl_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /***********************/
etisserant@0: /* B 1.5.1 - Functions */
etisserant@0: /***********************/
etisserant@0: void *visit(function_declaration_c *symbol) {
etisserant@0:   s4o.print("FUNCTION ");
etisserant@0:   symbol->derived_function_name->accept(*this);
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->type_name->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_declarations_list->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   symbol->function_body->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces + "END_FUNCTION\n\n\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* intermediate helper symbol for function_declaration */
etisserant@0: void *visit(var_declarations_list_c *symbol) {return print_list(symbol);}
etisserant@0: 
etisserant@0: void *visit(function_var_decls_c *symbol) {
etisserant@1:   //s4o.print(s4o.indent_spaces); 
etisserant@1:   s4o.print("VAR ");
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* intermediate helper symbol for function_var_decls */
etisserant@0: void *visit(var2_init_decl_list_c *symbol) {
etisserant@0:   print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*****************************/
etisserant@0: /* B 1.5.2 - Function Blocks */
etisserant@0: /*****************************/
etisserant@0: /*  FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */
etisserant@0: void *visit(function_block_declaration_c *symbol) {
etisserant@0:   s4o.print("FUNCTION_BLOCK ");
etisserant@0:   symbol->fblock_name->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_declarations->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   symbol->fblock_body->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces + "END_FUNCTION_BLOCK\n\n\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  VAR_TEMP temp_var_decl_list END_VAR */
etisserant@0: void *visit(temp_var_decls_c *symbol) {
etisserant@0:   s4o.print("VAR_TEMP\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* intermediate helper symbol for temp_var_decls */
etisserant@0: void *visit(temp_var_decls_list_c *symbol) {return print_list(symbol);}
etisserant@0: 
etisserant@0: /*  VAR NON_RETAIN var_init_decl_list END_VAR */
etisserant@0: void *visit(non_retentive_var_decls_c *symbol) {
etisserant@0:   s4o.print("VAR NON_RETAIN\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_decl_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print("END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /**********************/
etisserant@0: /* B 1.5.3 - Programs */
etisserant@0: /**********************/
etisserant@0: /*  PROGRAM program_type_name program_var_declarations_list function_block_body END_PROGRAM */
etisserant@0: void *visit(program_declaration_c *symbol) {
etisserant@0:   s4o.print("PROGRAM ");
etisserant@0:   symbol->program_type_name->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->var_declarations->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   symbol->function_block_body->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@1:   s4o.print("END_PROGRAM\n\n\n");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
etisserant@1: /***********************************/
etisserant@1: /* B 1.6 Sequential Function Chart */
etisserant@1: /***********************************/
mario@8: 
mario@7: /* sequential_function_chart {sfc_network} */
etisserant@1: void *visit(sequential_function_chart_c *symbol) {
lbessard@10:   print_list(symbol, "", "\n", "");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* sfc_network {step | transition | action} */
etisserant@1: void *visit(sfc_network_c *symbol) {
lbessard@10:   print_list(symbol, "", "\n", "");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* INITIAL_STEP step_name ':' [action_association_list] END_STEP */
etisserant@1: void *visit(initial_step_c *symbol) {
etisserant@1:   s4o.print(s4o.indent_spaces);
etisserant@1:   s4o.print("INITIAL_STEP ");
etisserant@1:   symbol->step_name->accept(*this);
lbessard@10:   s4o.print(":\n");
etisserant@1:   s4o.indent_right();
etisserant@1:   symbol->action_association_list->accept(*this);
etisserant@1:   s4o.print("\n");
etisserant@1:   s4o.indent_left();
etisserant@1:   s4o.print(s4o.indent_spaces);
lbessard@10:   s4o.print("END_STEP\n");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* STEP step_name ':' [action_association_list] END_STEP */
etisserant@1: void *visit(step_c *symbol) {
etisserant@1:   s4o.print(s4o.indent_spaces);
etisserant@1:   s4o.print("STEP ");
etisserant@1:   symbol->step_name->accept(*this);
lbessard@10:   s4o.print(":\n");
etisserant@1:   s4o.indent_right();
etisserant@1:   symbol->action_association_list->accept(*this);
etisserant@1:   s4o.print("\n");
etisserant@1:   s4o.indent_left();
etisserant@1:   s4o.print(s4o.indent_spaces);
lbessard@10:   s4o.print("END_STEP\n");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* action_association_list {action_association} */
etisserant@1: void *visit(action_association_list_c *symbol) {
etisserant@1:   print_list(symbol, "", "\n", "");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* action_name '(' [action_qualifier] [indicator_name_list] ')' */
etisserant@1: void *visit(action_association_c *symbol) {
lbessard@10:   s4o.print(s4o.indent_spaces);
lbessard@10:   symbol->action_name->accept(*this);
lbessard@10:   s4o.print("(");
etisserant@1:   if(symbol->action_qualifier != NULL){
etisserant@1:     symbol->action_qualifier->accept(*this);
etisserant@1:   }
mario@7:   if(symbol->indicator_name_list != NULL){
lbessard@10:   	symbol->indicator_name_list->accept(*this);
lbessard@10:   }
lbessard@10:   s4o.print(");");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* indicator_name_list ',' indicator_name */
etisserant@1: void *visit(indicator_name_list_c *symbol) {
lbessard@10:   print_list(symbol, ", ", ", ", "");
mario@7:   return NULL;
mario@7: }
mario@7: 
mario@7: /* action_qualifier [',' action_time] */
etisserant@1: void *visit(action_qualifier_c *symbol) {
mario@7:   symbol->action_qualifier->accept(*this);
mario@7:   if(symbol->action_time != NULL){
mario@7:     s4o.print(", ");
mario@7:     symbol->action_time->accept(*this);
mario@7:   }
mario@7:   return NULL;
mario@7: }
mario@7: 
mario@7: /* N | R | S | P */
etisserant@1: void *visit(qualifier_c *symbol) {
lbessard@10:   print_token(symbol);
mario@8:   return NULL;
etisserant@1: }
etisserant@1: 
mario@7: /* L | D | SD | DS | SL */
etisserant@1: void *visit(timed_qualifier_c *symbol) {
lbessard@10:   print_token(symbol);
mario@8:   return NULL;
mario@8: }
mario@8: 
mario@71: /* TRANSITION [transition_name] ['(''PRIORITY'':='integer')']
mario@71:  *   FROMstepsTO steps 
lbessard@17:  *   ':' simple_instr_list | ':=' expression
mario@8:  * END_TRANSITION
mario@8:  */
etisserant@1: void *visit(transition_c *symbol) {
etisserant@1:   s4o.print(s4o.indent_spaces);
etisserant@1:   s4o.print("TRANSITION ");
etisserant@1:   if (symbol->transition_name != NULL){
etisserant@1:     symbol->transition_name->accept(*this);
etisserant@1:     s4o.print(" ");
etisserant@1:   }
etisserant@1:   if (symbol->integer != NULL){
etisserant@1:     s4o.print("(PRIORITY := ");
etisserant@1:     symbol->integer->accept(*this);
etisserant@1:     s4o.print(") ");
etisserant@1:   }
etisserant@1:   s4o.print("FROM ");
etisserant@1:   symbol->from_steps->accept(*this);
lbessard@10:   s4o.print(" TO ");
etisserant@1:   symbol->to_steps->accept(*this);
etisserant@1:   s4o.indent_right();
lbessard@87:   symbol->transition_condition->accept(*this);
lbessard@87:   s4o.indent_left();
lbessard@87:   s4o.print(s4o.indent_spaces);
lbessard@87:   s4o.print("END_TRANSITION\n");
lbessard@87:   return NULL;
lbessard@87: }
lbessard@87: 
lbessard@87: void *visit(transition_condition_c *symbol) {
lbessard@3:   if (symbol->transition_condition_il != NULL) {
lbessard@87:     s4o.print(":\n");
lbessard@17:     symbol->transition_condition_il->accept(*this);
lbessard@3:   }
lbessard@3:   if (symbol->transition_condition_st != NULL) {
lbessard@87:     s4o.print("\n");
lbessard@17:     s4o.print(s4o.indent_spaces);
lbessard@17:     s4o.print(":= ");
lbessard@17:     symbol->transition_condition_st->accept(*this);
lbessard@17:     s4o.print(";\n");
lbessard@3:   }
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@8: /* step_name | step_name_list */
etisserant@1: void *visit(steps_c *symbol) {
etisserant@1:   if(symbol->step_name != NULL){
etisserant@1:     symbol->step_name->accept(*this);
etisserant@1:   }
etisserant@1:   if(symbol->step_name_list != NULL){
etisserant@1:     symbol->step_name_list->accept(*this);
etisserant@1:   }
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@8: /* '(' step_name ',' step_name {',' step_name} ')' */
etisserant@1: void *visit(step_name_list_c *symbol) {
lbessard@16:   print_list(symbol, "(", ", ", ")");
etisserant@1:   return NULL;
etisserant@1: }
etisserant@1: 
mario@8: /* ACTION action_name ':' function_block_body END_ACTION */
etisserant@1: void *visit(action_c *symbol) {
mario@8:   s4o.print(s4o.indent_spaces);
mario@8:   s4o.print("ACTION ");
mario@8:   symbol->action_name->accept(*this);
lbessard@10:   s4o.print(":\n");
lbessard@10:   s4o.indent_right();
lbessard@10:   symbol->function_block_body->accept(*this);
lbessard@10:   s4o.indent_left();
mario@8:   s4o.print(s4o.indent_spaces);
lbessard@10:   s4o.print("END_ACTION\n");
mario@8:   return NULL;
mario@8: }
mario@8:  
mario@8:  
mario@8:  
etisserant@0: /********************************/
etisserant@0: /* B 1.7 Configuration elements */
etisserant@0: /********************************/
etisserant@0: /*
etisserant@0: CONFIGURATION configuration_name
etisserant@0:    optional_global_var_declarations
etisserant@0:    (resource_declaration_list | single_resource_declaration)
etisserant@0:    optional_access_declarations
etisserant@0:    optional_instance_specific_initializations
etisserant@0: END_CONFIGURATION
etisserant@0: */
etisserant@0: void *visit(configuration_declaration_c *symbol) {
etisserant@0:   s4o.print("CONFIGURATION ");
etisserant@0:   symbol->configuration_name->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   if (symbol->global_var_declarations != NULL)
etisserant@0:     symbol->global_var_declarations->accept(*this);
etisserant@0:   symbol->resource_declarations->accept(*this);
etisserant@0:   if (symbol->access_declarations != NULL)
etisserant@0:     symbol->access_declarations->accept(*this);
etisserant@0:   if (symbol->instance_specific_initializations != NULL)
etisserant@0:     symbol->instance_specific_initializations->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces + "END_CONFIGURATION\n\n\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
mjsousa@862: /* intermediate helper symbol for configuration_declaration  */
mjsousa@862: /*  { global_var_declarations_list }   */
mjsousa@862: void *visit(global_var_declarations_list_c *symbol) {return print_list(symbol);}
mjsousa@862: 
etisserant@0: /* helper symbol for configuration_declaration */
etisserant@0: /*| resource_declaration_list resource_declaration */
etisserant@0: void *visit(resource_declaration_list_c *symbol) {return print_list(symbol);}
etisserant@0: 
etisserant@0: 
etisserant@0: /*
etisserant@0: RESOURCE resource_name ON resource_type_name
etisserant@0:    optional_global_var_declarations
etisserant@0:    single_resource_declaration
etisserant@0: END_RESOURCE
etisserant@0: */
etisserant@0: void *visit(resource_declaration_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces + "RESOURCE ");
etisserant@0:   symbol->resource_name->accept(*this);
etisserant@0:   s4o.print(" ON ");
etisserant@0:   symbol->resource_type_name->accept(*this);
etisserant@0:   s4o.print("\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   if (symbol->global_var_declarations != NULL)
etisserant@0:     symbol->global_var_declarations->accept(*this);
etisserant@0:   symbol->resource_declaration->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces + "END_RESOURCE\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* task_configuration_list program_configuration_list */
etisserant@0: void *visit(single_resource_declaration_c *symbol) {
etisserant@0:   symbol->task_configuration_list->accept(*this);
etisserant@0:   symbol->program_configuration_list->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for single_resource_declaration */
etisserant@0: /*| task_configuration_list task_configuration ';'*/
etisserant@0: void *visit(task_configuration_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* helper symbol for single_resource_declaration */
etisserant@0: /*| program_configuration_list program_configuration ';'*/
etisserant@0: void *visit(program_configuration_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* helper symbol for
etisserant@0:  *  - access_path
etisserant@0:  *  - instance_specific_init
etisserant@0:  */
etisserant@0: /* | any_fb_name_list any_identifier '.'*/
etisserant@0: void *visit(any_fb_name_list_c *symbol) {return print_list(symbol, ".", ".");}
etisserant@0: 
etisserant@0: 
etisserant@0: /*  [resource_name '.'] global_var_name ['.' structure_element_name] */
etisserant@0: void *visit(global_var_reference_c *symbol) {
etisserant@0:   if (symbol->resource_name != NULL) {
etisserant@0:     symbol->resource_name->accept(*this);
etisserant@0:     s4o.print(".");
etisserant@0:   }
etisserant@0:   symbol->global_var_name->accept(*this);
etisserant@0:   if (symbol->structure_element_name != NULL) {
etisserant@0:     s4o.print(".");
etisserant@0:     symbol->structure_element_name->accept(*this);
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* program_name '.' symbolic_variable */
etisserant@0: void *visit(program_output_reference_c *symbol) {
etisserant@0:   symbol->program_name->accept(*this);
etisserant@0:   s4o.print(".");
etisserant@0:   symbol->symbolic_variable->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  TASK task_name task_initialization */
etisserant@0: void *visit(task_configuration_c *symbol) {
etisserant@0:   s4o.print("TASK ");
etisserant@0:   symbol->task_name->accept(*this);
etisserant@0:   s4o.print(" ");
etisserant@0:   symbol->task_initialization->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  '(' [SINGLE ASSIGN data_source ','] [INTERVAL ASSIGN data_source ','] PRIORITY ASSIGN integer ')' */
etisserant@0: void *visit(task_initialization_c *symbol) {
etisserant@0:   s4o.print("(");
etisserant@0:   if (symbol->single_data_source != NULL) {
etisserant@0:     s4o.print("SINGLE := ");
etisserant@0:     symbol->single_data_source->accept(*this);
etisserant@0:     s4o.print(", ");
etisserant@0:   }
etisserant@0:   if (symbol->interval_data_source != NULL) {
etisserant@0:     s4o.print("INTERVAL := ");
etisserant@0:     symbol->interval_data_source->accept(*this);
etisserant@0:     s4o.print(", ");
etisserant@0:   }
etisserant@0:   s4o.print("PRIORITY := ");
etisserant@0:   symbol->priority_data_source->accept(*this);
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  PROGRAM [RETAIN | NON_RETAIN] program_name [WITH task_name] ':' program_type_name ['(' prog_conf_elements ')'] */
etisserant@0: void *visit(program_configuration_c *symbol) {
etisserant@0:   s4o.print("PROGRAM ");
etisserant@0:   if (symbol->retain_option != NULL)
etisserant@0:     symbol->retain_option->accept(*this);
etisserant@0:   symbol->program_name->accept(*this);
etisserant@0:   if (symbol->task_name != NULL) {
etisserant@0:     s4o.print(" WITH ");
etisserant@0:     symbol->task_name->accept(*this);
etisserant@0:   }
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->program_type_name->accept(*this);
etisserant@0:   if (symbol->prog_conf_elements != NULL) {
etisserant@0:     s4o.print("(");
etisserant@0:     symbol->prog_conf_elements->accept(*this);
etisserant@0:     s4o.print(")");
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* prog_conf_elements ',' prog_conf_element */
etisserant@0: void *visit(prog_conf_elements_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
etisserant@0: /*  fb_name WITH task_name */
etisserant@0: void *visit(fb_task_c *symbol) {
etisserant@0:   symbol->fb_name->accept(*this);
etisserant@0:   s4o.print(" WITH ");
etisserant@0:   symbol->task_name->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  any_symbolic_variable ASSIGN prog_data_source */
etisserant@0: void *visit(prog_cnxn_assign_c *symbol) {
etisserant@0:   symbol->symbolic_variable->accept(*this);
etisserant@0:   s4o.print(" := ");
etisserant@0:   symbol->prog_data_source->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* any_symbolic_variable SENDTO data_sink */
etisserant@0: void *visit(prog_cnxn_sendto_c *symbol) {
etisserant@0:   symbol->symbolic_variable->accept(*this);
etisserant@0:   s4o.print(" => ");
lbessard@28:   symbol->data_sink->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* VAR_CONFIG instance_specific_init_list END_VAR */
etisserant@0: void *visit(instance_specific_initializations_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces + "VAR_CONFIG\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->instance_specific_init_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces + "END_VAR\n");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for instance_specific_initializations */
etisserant@0: /*| instance_specific_init_list instance_specific_init ';'*/
etisserant@0: void *visit(instance_specific_init_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /* resource_name '.' program_name '.' optional_fb_name_list '.'
etisserant@0:     ((variable_name [location] ':' located_var_spec_init) | (fb_name ':' fb_initialization))
etisserant@0: */
etisserant@0: void *visit(instance_specific_init_c *symbol) {
etisserant@0:   symbol->resource_name->accept(*this);
etisserant@0:   s4o.print(".");
etisserant@0:   symbol->program_name->accept(*this);
etisserant@0:   symbol->any_fb_name_list->accept(*this);
etisserant@0:   if (symbol->variable_name != NULL) {
etisserant@0:     s4o.print(".");
etisserant@0:     symbol->variable_name->accept(*this);
etisserant@0:   }
etisserant@0:   if (symbol->location != NULL) {
etisserant@0:     s4o.print(" ");
etisserant@0:     symbol->location->accept(*this);
etisserant@0:   }
etisserant@0:   s4o.print(" : ");
etisserant@0:   symbol->initialization->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for instance_specific_init */
etisserant@0: /* function_block_type_name ':=' structure_initialization */
etisserant@0: void *visit(fb_initialization_c *symbol) {
etisserant@0:   symbol->function_block_type_name->accept(*this);
etisserant@0:   s4o.print(" := ");
etisserant@0:   symbol->structure_initialization->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /***********************************/
etisserant@0: /* B 2.1 Instructions and Operands */
etisserant@0: /***********************************/
etisserant@0: /*| instruction_list il_instruction */
etisserant@0: void *visit(instruction_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, "\n" + s4o.indent_spaces, "\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /* | label ':' [il_incomplete_instruction] eol_list */
etisserant@0: void *visit(il_instruction_c *symbol) {
etisserant@0:   if (symbol->label != NULL) {
etisserant@0:     symbol->label->accept(*this);
etisserant@0:     s4o.print(": ");
etisserant@0:   }
msousa@311:   if (symbol->il_instruction != NULL) {
msousa@311:     symbol->il_instruction->accept(*this);
msousa@311:   }  
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* | il_simple_operator [il_operand] */
etisserant@0: void *visit(il_simple_operation_c *symbol) {
etisserant@0:   symbol->il_simple_operator->accept(*this);
etisserant@0:   if (symbol->il_operand != NULL)
etisserant@0:     symbol->il_operand->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* | function_name [il_operand_list] */
etisserant@0: void *visit(il_function_call_c *symbol) {
etisserant@0:   symbol->function_name->accept(*this);
etisserant@0:   s4o.print(" ");
etisserant@0:   if (symbol->il_operand_list != NULL)
etisserant@0:     symbol->il_operand_list->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* | il_expr_operator '(' [il_operand] eol_list [simple_instr_list] ')' */
etisserant@0: void *visit(il_expression_c *symbol) {
msousa@690:   /* Since stage2 will insert an artificial (and equivalent) LD <il_operand> to the simple_instr_list when an 'il_operand' exists, we know
msousa@690:    * that if (symbol->il_operand != NULL), then the first IL instruction in the simple_instr_list will be the equivalent and artificial
msousa@690:    * 'LD <il_operand>' IL instruction.
msousa@690:    * Since we do not want the extra LD instruction, we simply remove it!
msousa@690:    */
msousa@690:   if (symbol->il_operand != NULL)
msousa@690:     ((list_c *)symbol->simple_instr_list)->remove_element(0);
msousa@690: 
etisserant@0:   symbol->il_expr_operator->accept(*this);
etisserant@0:   s4o.print("(");
etisserant@0:   if (symbol->il_operand != NULL)
etisserant@0:     symbol->il_operand->accept(*this);
etisserant@0:   if (symbol->simple_instr_list != NULL) {
etisserant@0:     s4o.print("\n");
etisserant@0:     s4o.indent_right();
etisserant@0:     symbol->simple_instr_list->accept(*this);
lbessard@10:     s4o.print(s4o.indent_spaces);
etisserant@0:     s4o.indent_left();
etisserant@0:   }
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  il_jump_operator label */
etisserant@0: void *visit(il_jump_operation_c *symbol) {
etisserant@0:   symbol->il_jump_operator->accept(*this);
etisserant@0:   symbol->label->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*   il_call_operator prev_declared_fb_name
etisserant@0:  * | il_call_operator prev_declared_fb_name '(' ')'
etisserant@0:  * | il_call_operator prev_declared_fb_name '(' eol_list ')'
etisserant@0:  * | il_call_operator prev_declared_fb_name '(' il_operand_list ')'
etisserant@0:  * | il_call_operator prev_declared_fb_name '(' eol_list il_param_list ')'
etisserant@0:  */
etisserant@0: void *visit(il_fb_call_c *symbol) {
etisserant@0:   symbol->il_call_operator->accept(*this);
etisserant@0:   symbol->fb_name->accept(*this);
etisserant@0:   s4o.print("(");
etisserant@0:   if (symbol->il_operand_list != NULL)
etisserant@0:     symbol->il_operand_list->accept(*this);
etisserant@0:   if (symbol->il_param_list != NULL) {
etisserant@0:     s4o.print("\n");
etisserant@0:     s4o.indent_right();
etisserant@0:     symbol->il_param_list->accept(*this);
etisserant@0:     s4o.indent_left();
etisserant@0:   }
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* | function_name '(' eol_list [il_param_list] ')' */
etisserant@0: void *visit(il_formal_funct_call_c *symbol) {
etisserant@0:   symbol->function_name->accept(*this);
etisserant@0:   s4o.print("(");
mario@71:   s4o.print("\n");
etisserant@0:   if (symbol->il_param_list != NULL) {
etisserant@0:     s4o.indent_right();
etisserant@0:     symbol->il_param_list->accept(*this);
etisserant@0:     s4o.print(")");
mario@71:     s4o.indent_left();
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* | il_operand_list ',' il_operand */
mario@71: void *visit(il_operand_list_c *symbol) {
mario@71:   return print_list(symbol, "", ", ");
mario@71: }
etisserant@0: 
etisserant@0: /* | simple_instr_list il_simple_instruction */
etisserant@0: void *visit(simple_instr_list_c *symbol) {
lbessard@10:   return print_list(symbol,  s4o.indent_spaces, "\n" + s4o.indent_spaces, "\n");
etisserant@0: }
etisserant@0: 
msousa@453: 
msousa@453: /* il_simple_instruction:
msousa@453:  *   il_simple_operation eol_list
msousa@453:  * | il_expression eol_list
msousa@453:  * | il_formal_funct_call eol_list
msousa@453:  */
msousa@453: void *visit(il_simple_instruction_c *symbol)	{
msousa@453:   return symbol->il_simple_instruction->accept(*this);
msousa@453: }
msousa@453: 
msousa@453: 
etisserant@0: /* | il_initial_param_list il_param_instruction */
mario@71: void *visit(il_param_list_c *symbol) {
mario@71: // return print_list(symbol);
mario@71:   return print_list(symbol,  s4o.indent_spaces, ",\n" + s4o.indent_spaces, "\n" + s4o.indent_spaces);
mario@71: }
etisserant@0: 
etisserant@0: /*  il_assign_operator il_operand
etisserant@0:  * | il_assign_operator '(' eol_list simple_instr_list ')'
etisserant@0:  */
etisserant@0: void *visit(il_param_assignment_c *symbol) {
etisserant@0:   symbol->il_assign_operator->accept(*this);
mario@71:   s4o.print(" := ");
etisserant@0:   if (symbol->il_operand != NULL)
etisserant@0:     symbol->il_operand->accept(*this);
etisserant@0:   if (symbol->simple_instr_list != NULL) {
etisserant@0:     s4o.print("(\n");
etisserant@0:     s4o.indent_right();
etisserant@0:     symbol->simple_instr_list->accept(*this);
lbessard@10:     s4o.print(s4o.indent_spaces);
mario@71:     s4o.print(")");
etisserant@0:     s4o.indent_left();
etisserant@0:   }
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*  il_assign_out_operator variable */
etisserant@0: void *visit(il_param_out_assignment_c *symbol) {
etisserant@0:   symbol->il_assign_out_operator->accept(*this);
mario@71:   s4o.print(" => ");
etisserant@0:   symbol->variable->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /*******************/
etisserant@0: /* B 2.2 Operators */
etisserant@0: /*******************/
etisserant@0: void *visit(LD_operator_c *symbol) {s4o.print("LD "); return NULL;}
etisserant@0: void *visit(LDN_operator_c *symbol) {s4o.print("LDN "); return NULL;}
etisserant@0: void *visit(ST_operator_c *symbol) {s4o.print("ST "); return NULL;}
etisserant@0: void *visit(STN_operator_c *symbol) {s4o.print("STN "); return NULL;}
etisserant@0: void *visit(NOT_operator_c *symbol) {s4o.print("NOT "); return NULL;}
etisserant@0: void *visit(S_operator_c *symbol) {s4o.print("S "); return NULL;}
etisserant@0: void *visit(R_operator_c *symbol) {s4o.print("R "); return NULL;}
etisserant@0: void *visit(S1_operator_c *symbol) {s4o.print("S1 "); return NULL;}
etisserant@0: void *visit(R1_operator_c *symbol) {s4o.print("R1 "); return NULL;}
etisserant@0: void *visit(CLK_operator_c *symbol) {s4o.print("CLK "); return NULL;}
etisserant@0: void *visit(CU_operator_c *symbol) {s4o.print("CU "); return NULL;}
etisserant@0: void *visit(CD_operator_c *symbol) {s4o.print("CD "); return NULL;}
etisserant@0: void *visit(PV_operator_c *symbol) {s4o.print("PV "); return NULL;}
etisserant@0: void *visit(IN_operator_c *symbol) {s4o.print("IN "); return NULL;}
etisserant@0: void *visit(PT_operator_c *symbol) {s4o.print("PT "); return NULL;}
etisserant@0: void *visit(AND_operator_c *symbol) {s4o.print("AND "); return NULL;}
etisserant@0: void *visit(OR_operator_c *symbol) {s4o.print("OR "); return NULL;}
etisserant@0: void *visit(XOR_operator_c *symbol) {s4o.print("XOR "); return NULL;}
etisserant@0: void *visit(ANDN_operator_c *symbol) {s4o.print("ANDN "); return NULL;}
etisserant@0: void *visit(ORN_operator_c *symbol) {s4o.print("ORN "); return NULL;}
etisserant@0: void *visit(XORN_operator_c *symbol) {s4o.print("XORN "); return NULL;}
etisserant@0: void *visit(ADD_operator_c *symbol) {s4o.print("ADD "); return NULL;}
etisserant@0: void *visit(SUB_operator_c *symbol) {s4o.print("SUB "); return NULL;}
etisserant@0: void *visit(MUL_operator_c *symbol) {s4o.print("MUL "); return NULL;}
etisserant@0: void *visit(DIV_operator_c *symbol) {s4o.print("DIV "); return NULL;}
etisserant@0: void *visit(MOD_operator_c *symbol) {s4o.print("MOD "); return NULL;}
etisserant@0: void *visit(GT_operator_c *symbol) {s4o.print("GT "); return NULL;}
etisserant@0: void *visit(GE_operator_c *symbol) {s4o.print("GE "); return NULL;}
etisserant@0: void *visit(EQ_operator_c *symbol) {s4o.print("EQ "); return NULL;}
etisserant@0: void *visit(LT_operator_c *symbol) {s4o.print("LT "); return NULL;}
etisserant@0: void *visit(LE_operator_c *symbol) {s4o.print("LE "); return NULL;}
etisserant@0: void *visit(NE_operator_c *symbol) {s4o.print("NE "); return NULL;}
etisserant@0: void *visit(CAL_operator_c *symbol) {s4o.print("CAL "); return NULL;}
etisserant@0: void *visit(CALC_operator_c *symbol) {s4o.print("CALC "); return NULL;}
etisserant@0: void *visit(CALCN_operator_c *symbol) {s4o.print("CALCN "); return NULL;}
etisserant@0: void *visit(RET_operator_c *symbol) {s4o.print("RET "); return NULL;}
etisserant@0: void *visit(RETC_operator_c *symbol) {s4o.print("RETC "); return NULL;}
etisserant@0: void *visit(RETCN_operator_c *symbol) {s4o.print("RETCN "); return NULL;}
etisserant@0: void *visit(JMP_operator_c *symbol) {s4o.print("JMP "); return NULL;}
etisserant@0: void *visit(JMPC_operator_c *symbol) {s4o.print("JMPC "); return NULL;}
etisserant@0: void *visit(JMPCN_operator_c *symbol) {s4o.print("JMPCN "); return NULL;}
etisserant@0: 
lbessard@143: /*| any_identifier ASSIGN */
lbessard@143: void *visit(il_assign_operator_c *symbol) {
lbessard@143:   symbol->variable_name->accept(*this);
lbessard@143:   s4o.print(" := ");
lbessard@143:   return NULL;
lbessard@143: }
lbessard@143: 
etisserant@0: /*| [NOT] any_identifier SENDTO */
etisserant@0: void *visit(il_assign_out_operator_c *symbol) {
etisserant@0:   if (symbol->option != NULL)
etisserant@0:     symbol->option->accept(*this);
etisserant@0:   symbol->variable_name->accept(*this);
etisserant@0:   s4o.print(" => ");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /***********************/
etisserant@0: /* B 3.1 - Expressions */
etisserant@0: /***********************/
mjsousa@873: void *visit(ref_expression_c *symbol) {return  s4o.print("REF("); symbol->exp->accept(*this); s4o.print(")");} /* an extension to the IEC 61131-3 standard - based on the IEC 61131-3 v3 standard. Returns address of the varible! */
msousa@580: void *visit(or_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " OR ");}
msousa@580: void *visit(xor_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " XOR ");}
msousa@580: void *visit(and_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " AND ");}
msousa@580: void *visit(equ_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " = ");}
msousa@580: void *visit(notequ_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " <> ");}
msousa@580: void *visit(lt_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " < ");}
msousa@580: void *visit(gt_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " > ");}
msousa@580: void *visit(le_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " <= ");}
msousa@580: void *visit(ge_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " >= ");}
msousa@580: void *visit(add_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " + ");}
msousa@580: void *visit(sub_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " - ");}
msousa@580: void *visit(mul_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " * ");}
msousa@580: void *visit(div_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " / ");}
msousa@580: void *visit(mod_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " MOD ");}
msousa@580: void *visit(power_expression_c *symbol) {return print_binary_expression(symbol, symbol->l_exp, symbol->r_exp, " ** ");}
msousa@580: void *visit(neg_expression_c *symbol) {return print_unary_expression(symbol, symbol->exp, "-");}
msousa@580: void *visit(not_expression_c *symbol) {return print_unary_expression(symbol, symbol->exp, "NOT ");}
etisserant@0: 
etisserant@0: void *visit(function_invocation_c *symbol) {
etisserant@0:   symbol->function_name->accept(*this);
etisserant@0:   s4o.print("(");
ccb@202: 
ccb@202:   /* If the syntax parser is working correctly, exactly one of the 
ccb@202:    * following two symbols will be NULL, while the other is != NULL.
ccb@202:    */
ccb@202:   if (symbol->   formal_param_list != NULL) symbol->   formal_param_list->accept(*this);
ccb@202:   if (symbol->nonformal_param_list != NULL) symbol->nonformal_param_list->accept(*this);
ccb@202: 
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /********************/
etisserant@0: /* B 3.2 Statements */
etisserant@0: /********************/
etisserant@0: void *visit(statement_list_c *symbol) {
etisserant@0:   return print_list(symbol, s4o.indent_spaces, ";\n" + s4o.indent_spaces, ";\n");
etisserant@0: }
etisserant@0: 
etisserant@0: /*********************************/
etisserant@0: /* B 3.2.1 Assignment Statements */
etisserant@0: /*********************************/
etisserant@0: void *visit( assignment_statement_c *symbol) {
etisserant@0:   symbol->l_exp->accept(*this);
etisserant@0:   s4o.print(" := ");
etisserant@0:   symbol->r_exp->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /*****************************************/
etisserant@0: /* B 3.2.2 Subprogram Control Statements */
etisserant@0: /*****************************************/
lbessard@143: 
etisserant@0: /*  RETURN */
etisserant@0: void *visit(return_statement_c *symbol) {
etisserant@0:   s4o.print("RETURN");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* fb_name '(' [param_assignment_list] ')' */
etisserant@0: void *visit(fb_invocation_c *symbol) {
etisserant@0:   symbol->fb_name->accept(*this);
etisserant@0:   s4o.print("(");
ccb@202:   /* If the syntax parser is working correctly, at most one of the 
ccb@202:    * following two symbols will be NULL, while the other is != NULL.
ccb@202:    * The two may be NULL simultaneously!
ccb@202:    */
ccb@202:   if (symbol->   formal_param_list != NULL) symbol->   formal_param_list->accept(*this);
ccb@202:   if (symbol->nonformal_param_list != NULL) symbol->nonformal_param_list->accept(*this);
ccb@202: 
etisserant@0:   s4o.print(")");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /* helper symbol for fb_invocation */
etisserant@0: /* param_assignment_list ',' param_assignment */
etisserant@0: void *visit(param_assignment_list_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
etisserant@0: 
etisserant@0: void *visit(input_variable_param_assignment_c *symbol) {
etisserant@0:   symbol->variable_name->accept(*this);
etisserant@0:   s4o.print(" := ");
etisserant@0:   symbol->expression->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: void *visit(output_variable_param_assignment_c *symbol) {
etisserant@0:   if (symbol->not_param != NULL)
etisserant@0:     symbol->not_param->accept(*this);
etisserant@0:   symbol->variable_name->accept(*this);
etisserant@0:   s4o.print(" => ");
etisserant@0:   symbol->variable->accept(*this);
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: void *visit(not_paramassign_c *symbol) {
etisserant@0:   s4o.print("NOT ");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: /********************************/
etisserant@0: /* B 3.2.3 Selection Statements */
etisserant@0: /********************************/
etisserant@0: void *visit(if_statement_c *symbol) {
etisserant@0:   s4o.print("IF ");
etisserant@0:   symbol->expression->accept(*this);
etisserant@0:   s4o.print(" THEN\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->statement_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   symbol->elseif_statement_list->accept(*this);
etisserant@0: 
etisserant@0:   if (symbol->else_statement_list != NULL) {
etisserant@0:     s4o.print(s4o.indent_spaces); s4o.print("ELSE\n");
etisserant@0:     s4o.indent_right();
etisserant@0:     symbol->else_statement_list->accept(*this);
etisserant@0:     s4o.indent_left();
etisserant@0:   }
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_IF");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for if_statement */
etisserant@0: void *visit(elseif_statement_list_c *symbol) {return print_list(symbol);}
etisserant@0: 
etisserant@0: /* helper symbol for elseif_statement_list */
etisserant@0: void *visit(elseif_statement_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("ELSIF ");
etisserant@0:   symbol->expression->accept(*this);
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("THEN\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->statement_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(case_statement_c *symbol) {
etisserant@0:   s4o.print("CASE ");
etisserant@0:   symbol->expression->accept(*this);
etisserant@0:   s4o.print(" OF\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->case_element_list->accept(*this);
etisserant@0:   if (symbol->statement_list != NULL) {
etisserant@0:     s4o.print(s4o.indent_spaces + "ELSE\n");
etisserant@0:     s4o.indent_right();
etisserant@0:     symbol->statement_list->accept(*this);
etisserant@0:     s4o.indent_left();
etisserant@0:   }
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces + "END_CASE");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: /* helper symbol for case_statement */
etisserant@0: void *visit(case_element_list_c *symbol) {
etisserant@0:   return print_list(symbol);
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(case_element_c *symbol) {
etisserant@0:   s4o.print(s4o.indent_spaces);
etisserant@0:   symbol->case_list->accept(*this);
etisserant@0:   s4o.print(":\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->statement_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(case_list_c *symbol) {return print_list(symbol, "", ", ");}
etisserant@0: 
etisserant@0: /********************************/
etisserant@0: /* B 3.2.4 Iteration Statements */
etisserant@0: /********************************/
etisserant@0: void *visit(for_statement_c *symbol) {
etisserant@0:   s4o.print("FOR ");
etisserant@0:   symbol->control_variable->accept(*this);
etisserant@0:   s4o.print(" := ");
etisserant@0:   symbol->beg_expression->accept(*this);
etisserant@0:   s4o.print(" TO ");
etisserant@0:   symbol->end_expression->accept(*this);
etisserant@0:   if (symbol->by_expression != NULL) {
etisserant@0:     s4o.print(" BY ");
etisserant@0:     symbol->by_expression->accept(*this);
etisserant@0:   }
etisserant@0:   s4o.print(" DO\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->statement_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_FOR");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(while_statement_c *symbol) {
etisserant@0:   s4o.print("WHILE ");
etisserant@0:   symbol->expression->accept(*this);
etisserant@0:   s4o.print(" DO\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->statement_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("END_WHILE");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(repeat_statement_c *symbol) {
etisserant@0:   s4o.print("REPEAT\n");
etisserant@0:   s4o.indent_right();
etisserant@0:   symbol->statement_list->accept(*this);
etisserant@0:   s4o.indent_left();
etisserant@0:   s4o.print(s4o.indent_spaces); s4o.print("UNTIL ");
etisserant@0:   symbol->expression->accept(*this);
etisserant@0:   s4o.print("\n" + s4o.indent_spaces + "END_REPEAT");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: void *visit(exit_statement_c *symbol) {
etisserant@0:   s4o.print("EXIT");
etisserant@0:   return NULL;
etisserant@0: }
etisserant@0: 
etisserant@0: 
etisserant@0: }; /* class generate_iec_c */
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: /***********************************************************************/
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
lbessard@46: visitor_c *new_code_generator(stage4out_c *s4o, const char *builddir)  {return new generate_iec_c(s4o);}
etisserant@0: void delete_code_generator(visitor_c *code_generator) {delete code_generator;}
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: 
etisserant@0: