lbessard@70: /*
lbessard@70:  * (c) 2003 Mario de Sousa
lbessard@70:  *
lbessard@70:  * Offered to the public under the terms of the GNU General Public License
lbessard@70:  * as published by the Free Software Foundation; either version 2 of the
lbessard@70:  * License, or (at your option) any later version.
lbessard@70:  *
lbessard@70:  * This program is distributed in the hope that it will be useful, but
lbessard@70:  * WITHOUT ANY WARRANTY; without even the implied warranty of
lbessard@70:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
lbessard@70:  * Public License for more details.
lbessard@70:  *
lbessard@70:  * This code is made available on the understanding that it will not be
lbessard@70:  * used in safety-critical situations without a full and competent review.
lbessard@70:  */
lbessard@70: 
lbessard@70: /*
lbessard@70:  * An IEC 61131-3 IL and ST compiler.
lbessard@70:  *
lbessard@70:  * Based on the
lbessard@70:  * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
lbessard@70:  *
lbessard@70:  */
lbessard@70: 
lbessard@70: 
lbessard@70: /*
lbessard@70:  * This is one of the versions available for the 4th stage.
lbessard@70:  *
lbessard@70:  * This 4th stage generates a c++ source program equivalent
lbessard@70:  * to the IL and ST code.
lbessard@70:  */
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: // #include <stdio.h>  /* required for NULL */
lbessard@70: #include <string>
lbessard@70: #include <iostream>
lbessard@70: #include <sstream>
lbessard@70: #include <typeinfo>
lbessard@111: #include <list>
etisserant@139: #include <strings.h>
lbessard@70: 
lbessard@70: #include "../../util/symtable.hh"
lbessard@70: #include "../../util/dsymtable.hh"
lbessard@70: #include "../../absyntax/visitor.hh"
lbessard@70: 
lbessard@70: #include "../stage4.hh"
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: //#define DEBUG
lbessard@70: #ifdef DEBUG
lbessard@70: #define TRACE(classname) printf("\n____%s____\n",classname);
lbessard@70: #else
lbessard@70: #define TRACE(classname)
lbessard@70: #endif
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: #define ERROR error_exit(__FILE__,__LINE__)
lbessard@70: /* function defined in main.cc */
lbessard@70: extern void error_exit(const char *file_name, int line_no);
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: /* A symbol table with all globally declared functions... */
lbessard@70: function_declaration_c null_symbol1(NULL,NULL,NULL,NULL);
lbessard@70: dsymtable_c<function_declaration_c *, &null_symbol1> function_symtable;
lbessard@70: 
lbessard@70: /* A symbol table with all globally declared functions block types... */
lbessard@70: function_block_declaration_c null_symbol2(NULL,NULL,NULL);
lbessard@70: symtable_c<function_block_declaration_c *, &null_symbol2> function_block_type_symtable;
lbessard@70: 
lbessard@70: /* A symbol table with all globally declared program types... */
lbessard@70: program_declaration_c null_symbol3(NULL,NULL,NULL);
lbessard@70: symtable_c<program_declaration_c *, &null_symbol3> program_type_symtable;
lbessard@70: 
lbessard@70: /* A symbol table with all user declared type definitions... */
lbessard@70: /* Note that function block types and program types have their
lbessard@70:  * own symbol tables, so do not get placed in this symbol table!
lbessard@70:  */
lbessard@70: symbol_c null_symbol4;
lbessard@70: symtable_c<symbol_c *, &null_symbol4> type_symtable;
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: 
lbessard@70: /* returns 0 if the names are equal!! */
lbessard@70: /* NOTE: it must ignore case!! */
lbessard@70: static int compare_identifiers(symbol_c *ident1, symbol_c *ident2) {
lbessard@70: 
lbessard@70:   token_c *name1 = dynamic_cast<token_c *>(ident1);
lbessard@70:   token_c *name2 = dynamic_cast<token_c *>(ident2);
lbessard@70:   
lbessard@70:   if ((name1 == NULL) || (name2 == NULL))
lbessard@70:     /* invalid identifiers... */
lbessard@70:     return -1;
lbessard@70: 
lbessard@70:   if (strcasecmp(name1->value, name2->value) == 0)
lbessard@70:     return 0;
lbessard@70: 
lbessard@70:   /* identifiers do not match! */
lbessard@70:   return 1;
lbessard@70: }
lbessard@70: 
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: /* Unlike Programs and Configurations which get mapped onto C++ classes,
lbessard@70:  * Function Blocks are mapped onto a C structure containing the variables, and
lbessard@70:  * a C function containing the code in the FB's body. This is to allow direct allocation
lbessard@70:  * of a FB variable (which is really an instance of the C data structure) to
lbessard@70:  * a member of a union variable (note that classes with constructors cannot
lbessard@70:  * be mebers of a union), which is done in IL when loading a FB onto IL's
lbessard@70:  * default variable.
lbessard@70:  *
lbessard@70:  * So as not to clash the names of the C data structure and the C function,
lbessard@70:  * the C structure is given a name identical to that of the FB name, whereas
lbessard@70:  * the name of the function is the FB name with a constant string appended.
lbessard@70:  * The value of that constant string which is appended is defined in the following
lbessard@70:  * constant.
lbessard@70:  * In order not to clash with any variable in the IL and ST source codem the
lbessard@70:  * following constant should contain a double underscore, which is not allowed
lbessard@70:  * in IL and ST.
lbessard@70:  *
lbessard@70:  * e.g.:  FUNTION_BLOCK TEST
lbessard@70:  * is mapped onto a TEST data structure, and a TEST_body__ function.
lbessard@70:  */
lbessard@70: 
lbessard@70: #define FB_FUNCTION_SUFFIX "_body__"
lbessard@70: 
lbessard@70: /* Idem as body, but for initializer FB function */
lbessard@70: #define FB_INIT_SUFFIX "_init__"
lbessard@70: 
lbessard@70: /* Idem as body, but for run CONFIG and RESOURCE function */
lbessard@70: #define FB_RUN_SUFFIX "_run__"
lbessard@70: 
lbessard@70: /* The FB body function is passed as the only parameter a pointer to the FB data
lbessard@70:  * structure instance. The name of this parameter is given by the following constant.
lbessard@70:  * In order not to clash with any variable in the IL and ST source codem the
lbessard@70:  * following constant should contain a double underscore, which is not allowed
lbessard@70:  * in IL and ST.
lbessard@70:  *
lbessard@70:  * e.g.: the body of FUNTION_BLOCK TEST
lbessard@70:  * is mapped onto the C function
lbessard@70:  *  TEST_body__(TEST *data__)
lbessard@70:  */
lbessard@70: 
lbessard@70: #define FB_FUNCTION_PARAM "data__"
lbessard@70: 
lbessard@70: 
lbessard@70: #define SFC_STEP_ACTION_PREFIX "__SFC_"
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: 
lbessard@70: #include "spec_init_separator.cc"
lbessard@70: #include "function_param_iterator.cc"
lbessard@70: #include "function_call_iterator.cc"
lbessard@70: #include "function_call_param_iterator.cc"
lbessard@70: #include "type_initial_value.cc"
lbessard@70: #include "search_fb_instance_decl.cc"
lbessard@111: #include "search_fb_typedecl.cc"
lbessard@70: #include "search_base_type.cc"
lbessard@70: #include "search_var_instance_decl.cc"
lbessard@70: #include "decompose_var_instance_name.cc"
lbessard@70: #include "search_varfb_instance_type.cc"
lbessard@70: #include "search_constant_type.cc"
lbessard@70: #include "search_expression_type.cc"
lbessard@70: 
lbessard@70: #include "generate_c_base.cc"
lbessard@70: #include "generate_c_typedecl.cc"
lbessard@70: #include "generate_c_sfcdecl.cc"
lbessard@70: #include "generate_c_vardecl.cc"
lbessard@70: #include "generate_c_configbody.cc"
lbessard@70: #include "generate_location_list.cc"
lbessard@111: #include "generate_var_list.cc"
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: /* Generate a name for a temporary variable.
lbessard@70:  * Each new name generated is appended a different number,
lbessard@70:  * starting off from 0.
lbessard@70:  * After calling reset(), the names will start off again from 0.
lbessard@70:  */
lbessard@70: #define VAR_LEADER "__"
lbessard@70: #define TEMP_VAR VAR_LEADER "TMP_"
lbessard@70: #define SOURCE_VAR VAR_LEADER "SRC_"
lbessard@70: 
lbessard@70: #include "generate_c_tempvardecl.cc"
lbessard@70: 
lbessard@70: #include "generate_c_st.cc"
lbessard@70: #include "generate_c_il.cc"
lbessard@70: 
lbessard@70: #include "generate_c.hh"
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: #define MILLISECOND 1000000
lbessard@70: #define SECOND 1000 * MILLISECOND
lbessard@70: 
lbessard@70: /* A helper class that knows how to generate code for both the IL and ST languages... */
lbessard@70: class calculate_time_c: public iterator_visitor_c {
lbessard@70:   private:
lbessard@70:     unsigned long time;
lbessard@70:     float current_value;
lbessard@70:   
lbessard@70:   public:
lbessard@70:     calculate_time_c(void){time = 0;};
lbessard@70:     
lbessard@70:     unsigned long get_time(void) {return time;};
lbessard@70: 
lbessard@70:     void *get_integer_value(token_c *token) {
lbessard@70:       std::string str = "";
lbessard@70:       for (unsigned int i = 0; i < strlen(token->value); i++)
lbessard@70:         if (token->value[i] != '_')
lbessard@70:           str += token->value[i];
lbessard@70:       current_value = atof(str.c_str());
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70:     void *get_float_value(token_c *token) {
lbessard@70:       current_value = atof(token->value);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70: /******************************/
lbessard@70: /* B 1.2.1 - Numeric Literals */
lbessard@70: /******************************/
lbessard@70: 
lbessard@70:     void *visit(integer_c *symbol) {return get_integer_value(symbol);}
lbessard@70:     
lbessard@70: /************************/
lbessard@70: /* B 1.2.3.1 - Duration */
lbessard@70: /************************/
lbessard@70:   
lbessard@70:     /* SYM_REF2(duration_c, neg, interval) */
lbessard@70:     void *visit(duration_c *symbol) {
lbessard@70:       if (symbol->neg != NULL)
lbessard@70:         ERROR;
lbessard@70:       symbol->interval->accept(*this);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70:     /* SYM_TOKEN(fixed_point_c) */
lbessard@70:     void *visit(fixed_point_c *symbol) {return get_float_value(symbol);}
lbessard@70:     
lbessard@70:     /* SYM_REF2(days_c, days, hours) */
lbessard@70:     void *visit(days_c *symbol) {
lbessard@70:       if (symbol->hours)
lbessard@70:         symbol->hours->accept(*this);
lbessard@70:       symbol->days->accept(*this);
lbessard@70:       time += (unsigned long)(current_value * 24 * 3600 * SECOND);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70:     /* SYM_REF2(hours_c, hours, minutes) */
lbessard@70:     void *visit(hours_c *symbol) {
lbessard@70:       if (symbol->minutes)
lbessard@70:         symbol->minutes->accept(*this);
lbessard@70:       symbol->hours->accept(*this);
lbessard@70:       time += (unsigned long)(current_value * 3600 * SECOND);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70:     /* SYM_REF2(minutes_c, minutes, seconds) */
lbessard@70:     void *visit(minutes_c *symbol) {
lbessard@70:       if (symbol->seconds)
lbessard@70:         symbol->seconds->accept(*this);
lbessard@70:       symbol->minutes->accept(*this);
lbessard@70:       time += (unsigned long)(current_value * 60 * SECOND);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70:     /* SYM_REF2(seconds_c, seconds, milliseconds) */
lbessard@70:     void *visit(seconds_c *symbol) {
lbessard@70:       if (symbol->milliseconds)
lbessard@70:         symbol->milliseconds->accept(*this);
lbessard@70:       symbol->seconds->accept(*this);
lbessard@70:       time += (unsigned long)(current_value * SECOND);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70:     /* SYM_REF2(milliseconds_c, milliseconds, unused) */
lbessard@70:     void *visit(milliseconds_c *symbol) {
lbessard@70:       symbol->milliseconds->accept(*this);
lbessard@70:       time += (unsigned long)(current_value * MILLISECOND);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: };
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: class calculate_common_ticktime_c: public iterator_visitor_c {
lbessard@70:   private:
lbessard@70:     unsigned long common_ticktime;
lbessard@70:     
lbessard@70:   public:
lbessard@70:     calculate_common_ticktime_c(void){common_ticktime = 0;}
lbessard@70:     
lbessard@70:     unsigned long euclide(unsigned long a, unsigned long b) {
lbessard@70:       unsigned long c = a % b;
lbessard@70:       if (c == 0)
lbessard@70:         return b;
lbessard@70:       else
lbessard@70:         return euclide(b, c);
lbessard@70:     }
lbessard@70:     
lbessard@70:     void update_ticktime(unsigned long time) {
lbessard@70:       if (common_ticktime == 0)
lbessard@70:         common_ticktime = time;
lbessard@70:       else if (time > common_ticktime)
lbessard@70:         common_ticktime = euclide(time, common_ticktime);
lbessard@70:       else
lbessard@70:         common_ticktime = euclide(common_ticktime, time);
lbessard@70:     }
lbessard@70: 
lbessard@70:     unsigned long get_ticktime(void) {
lbessard@70:       return common_ticktime;
lbessard@70:     }
lbessard@70: 
lbessard@70: /*  TASK task_name task_initialization */
lbessard@70: //SYM_REF2(task_configuration_c, task_name, task_initialization)  
lbessard@70:     void *visit(task_initialization_c *symbol) {
lbessard@70:       calculate_time_c calculate_time;
lbessard@70:       unsigned long time = 0;
lbessard@70:       if (symbol->interval_data_source != NULL) {
lbessard@70:         symbol->interval_data_source->accept(calculate_time);
lbessard@70:         time = calculate_time.get_time();
lbessard@70:       }
lbessard@70:       if (time > 0)
lbessard@70:         update_ticktime(time);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: };    
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: /* A helper class that knows how to generate code for both the IL and ST languages... */
lbessard@70: class generate_c_SFC_IL_ST_c: public null_visitor_c {
lbessard@70:   private:
lbessard@70:     stage4out_c *s4o_ptr;
lbessard@70:     symbol_c *scope;
lbessard@70:     const char *variable_prefix;
lbessard@70: 
lbessard@70:   public:
lbessard@70:     generate_c_SFC_IL_ST_c(stage4out_c *s4o_ptr, symbol_c *scope, const char *variable_prefix = NULL);
lbessard@70:     /*********************************************/
lbessard@70:     /* B.1.6  Sequential function chart elements */
lbessard@70:     /*********************************************/
lbessard@70:     
lbessard@70:     /*| sequential_function_chart sfc_network*/
lbessard@70:     void *visit(sequential_function_chart_c * symbol);
lbessard@70:     
lbessard@70:     /****************************************/
lbessard@70:     /* B.2 - Language IL (Instruction List) */
lbessard@70:     /****************************************/
lbessard@70:     
lbessard@70:     /***********************************/
lbessard@70:     /* B 2.1 Instructions and Operands */
lbessard@70:     /***********************************/
lbessard@70:     /*| instruction_list il_instruction */
lbessard@70:     void *visit(instruction_list_c *symbol);
lbessard@70:     
lbessard@70:     /* Remainder implemented in generate_c_il_c... */
lbessard@70:     
lbessard@70:     /***************************************/
lbessard@70:     /* B.3 - Language ST (Structured Text) */
lbessard@70:     /***************************************/
lbessard@70:     /***********************/
lbessard@70:     /* B 3.1 - Expressions */
lbessard@70:     /***********************/
lbessard@70:     /* Implemented in generate_c_st_c */
lbessard@70:     
lbessard@70:     /********************/
lbessard@70:     /* B 3.2 Statements */
lbessard@70:     /********************/
lbessard@70:     void *visit(statement_list_c *symbol);
lbessard@70: 
lbessard@70: /* Remainder implemented in generate_c_st_c... */
lbessard@70: };
lbessard@70: 
lbessard@70: #include "generate_c_sfc.cc"
lbessard@70: 
lbessard@70: generate_c_SFC_IL_ST_c::generate_c_SFC_IL_ST_c(stage4out_c *s4o_ptr, symbol_c *scope, const char *variable_prefix) {
lbessard@70:   if (NULL == scope) ERROR;
lbessard@70:   this->s4o_ptr = s4o_ptr;
lbessard@70:   this->scope = scope;
lbessard@70:   this->variable_prefix = variable_prefix;
lbessard@70: }
lbessard@70: 
lbessard@70: void *generate_c_SFC_IL_ST_c::visit(sequential_function_chart_c * symbol) {
lbessard@70:   generate_c_sfc_c generate_c_sfc(s4o_ptr, scope, variable_prefix);
lbessard@70:   generate_c_sfc.generate(symbol);
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: void *generate_c_SFC_IL_ST_c::visit(instruction_list_c *symbol) {
lbessard@70:   generate_c_il_c generate_c_il(s4o_ptr, scope, variable_prefix);
lbessard@70:   generate_c_il.generate(symbol);
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: void *generate_c_SFC_IL_ST_c::visit(statement_list_c *symbol) {
lbessard@70:   generate_c_st_c generate_c_st(s4o_ptr, scope, variable_prefix);
lbessard@70:   generate_c_st.generate(symbol);
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: 
lbessard@70: class generate_c_pous_c: public generate_c_typedecl_c {
lbessard@70: 
lbessard@70:   public:
lbessard@121:     generate_c_pous_c(stage4out_c *s4o_ptr, stage4out_c *s4o_incl_ptr)
lbessard@121:       : generate_c_typedecl_c(s4o_ptr, s4o_incl_ptr) {};
lbessard@70:     virtual ~generate_c_pous_c(void) {}
lbessard@70: 
lbessard@70: 
lbessard@70:   public:
lbessard@70: 
lbessard@70: /*************************/
lbessard@70: /* B.1 - Common elements */
lbessard@70: /*************************/
lbessard@70: /*******************************************/
lbessard@70: /* B 1.1 - Letters, digits and identifiers */
lbessard@70: /*******************************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /*********************/
lbessard@70: /* B 1.2 - Constants */
lbessard@70: /*********************/
lbessard@70:   /* originally empty... */
lbessard@70: 
lbessard@70: /******************************/
lbessard@70: /* B 1.2.1 - Numeric Literals */
lbessard@70: /******************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /*******************************/
lbessard@70: /* B.1.2.2   Character Strings */
lbessard@70: /*******************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /***************************/
lbessard@70: /* B 1.2.3 - Time Literals */
lbessard@70: /***************************/
lbessard@70: /************************/
lbessard@70: /* B 1.2.3.1 - Duration */
lbessard@70: /************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /************************************/
lbessard@70: /* B 1.2.3.2 - Time of day and Date */
lbessard@70: /************************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /**********************/
lbessard@70: /* B.1.3 - Data types */
lbessard@70: /**********************/
lbessard@70: /***********************************/
lbessard@70: /* B 1.3.1 - Elementary Data Types */
lbessard@70: /***********************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /********************************/
lbessard@70: /* B.1.3.2 - Generic data types */
lbessard@70: /********************************/
lbessard@70:   /* originally empty... */
lbessard@70: 
lbessard@70: /********************************/
lbessard@70: /* B 1.3.3 - Derived data types */
lbessard@70: /********************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /*********************/
lbessard@70: /* B 1.4 - Variables */
lbessard@70: /*********************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /********************************************/
lbessard@70: /* B.1.4.1   Directly Represented Variables */
lbessard@70: /********************************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /*************************************/
lbessard@70: /* B.1.4.2   Multi-element Variables */
lbessard@70: /*************************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /******************************************/
lbessard@70: /* B 1.4.3 - Declaration & Initialisation */
lbessard@70: /******************************************/
lbessard@70:   /* done in base class(es) */
lbessard@70: 
lbessard@70: /**************************************/
lbessard@70: /* B.1.5 - Program organization units */
lbessard@70: /**************************************/
lbessard@70: /***********************/
lbessard@70: /* B 1.5.1 - Functions */
lbessard@70: /***********************/
lbessard@70: 
lbessard@70: public:
lbessard@70: /*   FUNCTION derived_function_name ':' elementary_type_name io_OR_function_var_declarations_list function_body END_FUNCTION */
lbessard@70: /* | FUNCTION derived_function_name ':' derived_type_name io_OR_function_var_declarations_list function_body END_FUNCTION */
lbessard@70: void *visit(function_declaration_c *symbol) {
lbessard@70:   generate_c_vardecl_c *vardecl;
lbessard@70:   TRACE("function_declaration_c");
lbessard@70: 
lbessard@70:   /* start off by adding this declaration to the global
lbessard@70:    * function declaration symbol table...
lbessard@70:    */
lbessard@70:   function_symtable.insert(symbol->derived_function_name, symbol);
lbessard@70: 
lbessard@70:   /* (A) Function declaration... */
lbessard@70:   /* (A.1) Function return type */
lbessard@70:   s4o.print("// FUNCTION\n");
lbessard@70:   symbol->type_name->accept(*this); /* return type */
lbessard@70:   s4o.print(" ");
lbessard@70:   /* (A.2) Function name */
lbessard@70:   symbol->derived_function_name->accept(*this);
lbessard@70:   s4o.print("(");
lbessard@70: 
lbessard@70:   /* (A.3) Function parameters */
lbessard@70:   s4o.indent_right();
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::finterface_vf,
lbessard@70:   				      generate_c_vardecl_c::input_vt |
lbessard@145: 				        generate_c_vardecl_c::output_vt |
lbessard@145: 				        generate_c_vardecl_c::inoutput_vt);
lbessard@70:   vardecl->print(symbol->var_declarations_list);
lbessard@70:   delete vardecl;
lbessard@70:   s4o.indent_left();
lbessard@70: 
lbessard@70:   s4o.print(")\n" + s4o.indent_spaces + "{\n");
lbessard@70: 
lbessard@70:   /* (B) Function local variable declaration */
lbessard@70:     /* (B.1) Variables declared in ST source code */
lbessard@70:   s4o.indent_right();
lbessard@145:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@145:                 generate_c_vardecl_c::foutputdecl_vf,
lbessard@145:                 generate_c_vardecl_c::output_vt |
lbessard@145:                 generate_c_vardecl_c::inoutput_vt);
lbessard@145:   vardecl->print(symbol->var_declarations_list);
lbessard@145:   delete vardecl;
lbessard@145:   
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o, generate_c_vardecl_c::localinit_vf, generate_c_vardecl_c::private_vt);
lbessard@70:   vardecl->print(symbol->var_declarations_list);
lbessard@70:   delete vardecl;
lbessard@70: 
lbessard@70:     /* (B.2) Temporary variable for function's return value */
lbessard@70:   /* It will have the same name as the function itself! */
lbessard@70:   s4o.print(s4o.indent_spaces);
lbessard@70:   symbol->type_name->accept(*this); /* return type */
lbessard@70:   s4o.print(" ");
lbessard@70:   symbol->derived_function_name->accept(*this);
lbessard@70:   s4o.print(" = ");
lbessard@70:   {
lbessard@70:     /* get the default value of this variable's type */
lbessard@70:     symbol_c *default_value = (symbol_c *)symbol->type_name->accept(*type_initial_value_c::instance());
lbessard@70:     if (default_value == NULL) ERROR;
lbessard@70:     default_value->accept(*this);
lbessard@70:   }
lbessard@70:   s4o.print(";\n\n");
lbessard@70: 
lbessard@70:   /* (C) Function body */
lbessard@70:   generate_c_SFC_IL_ST_c generate_c_code(&s4o, symbol);
lbessard@70:   symbol->function_body->accept(generate_c_code);
lbessard@145:   
lbessard@145:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@145:                 generate_c_vardecl_c::foutputassign_vf,
lbessard@145:                 generate_c_vardecl_c::output_vt |
lbessard@145:                 generate_c_vardecl_c::inoutput_vt);
lbessard@145:   vardecl->print(symbol->var_declarations_list);
lbessard@145:   delete vardecl;
lbessard@145:   
lbessard@70:   s4o.print(s4o.indent_spaces + "return ");
lbessard@70:   symbol->derived_function_name->accept(*this);
lbessard@70:   s4o.print(";\n");
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "}\n\n\n");
lbessard@70: 
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: 
lbessard@70: /* The remaining var_declarations_list_c, function_var_decls_c
lbessard@70:  * and var2_init_decl_list_c are handled in the generate_c_vardecl_c class
lbessard@70:  */
lbessard@70: 
lbessard@70: 
lbessard@70: /*****************************/
lbessard@70: /* B 1.5.2 - Function Blocks */
lbessard@70: /*****************************/
lbessard@70: public:
lbessard@70: /*  FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */
lbessard@70: //SYM_REF4(function_block_declaration_c, fblock_name, var_declarations, fblock_body, unused)
lbessard@70: void *visit(function_block_declaration_c *symbol) {
lbessard@70:   generate_c_vardecl_c *vardecl;
lbessard@70:   generate_c_sfcdecl_c *sfcdecl;
lbessard@121:   generate_c_typedecl_c *typedecl;
lbessard@70:   TRACE("function_block_declaration_c");
lbessard@70: 
lbessard@70:   /* start off by adding this declaration to the global
lbessard@70:    * function block declaration symbol table...
lbessard@70:    */
lbessard@70:   function_block_type_symtable.insert(symbol->fblock_name, symbol);
lbessard@70:   
lbessard@70:   /* (A) Function Block data structure declaration... */
lbessard@121:   typedecl = new generate_c_typedecl_c(&s4o_incl);
lbessard@70:   /* (A.1) Data structure declaration */
lbessard@121:   s4o_incl.print("// FUNCTION_BLOCK ");
lbessard@121:   symbol->fblock_name->accept(*typedecl);
lbessard@121:   s4o_incl.print("\n// Data part\n");
lbessard@121:   s4o_incl.print("typedef struct {\n");
lbessard@121:   s4o_incl.indent_right();
lbessard@70:   /* (A.2) Public variables: i.e. the function parameters... */
lbessard@121:   s4o_incl.print(s4o_incl.indent_spaces + "// FB Interface - IN, OUT, IN_OUT variables\n");
lbessard@121:   vardecl = new generate_c_vardecl_c(&s4o_incl,
lbessard@70:   				      generate_c_vardecl_c::local_vf,
lbessard@70:   				      generate_c_vardecl_c::input_vt |
lbessard@70:   				      generate_c_vardecl_c::output_vt |
lbessard@70:   				      generate_c_vardecl_c::inoutput_vt);
lbessard@70:   vardecl->print(symbol->var_declarations);
lbessard@70:   delete vardecl;
lbessard@121:   s4o_incl.print("\n");
lbessard@70:   /* (A.3) Private internal variables */
lbessard@121:   s4o_incl.print(s4o_incl.indent_spaces + "// FB private variables - TEMP, private and located variables\n");
lbessard@121:   vardecl = new generate_c_vardecl_c(&s4o_incl,
lbessard@70:   				      generate_c_vardecl_c::local_vf,
lbessard@70: 				        generate_c_vardecl_c::temp_vt |
lbessard@70:   				      generate_c_vardecl_c::private_vt |
lbessard@70:   				      generate_c_vardecl_c::located_vt |
lbessard@70:   				      generate_c_vardecl_c::external_vt);
lbessard@70:   vardecl->print(symbol->var_declarations);
lbessard@70:   delete vardecl;
lbessard@70:   /* (A.4) Generate private internal variables for SFC */
lbessard@121:   sfcdecl = new generate_c_sfcdecl_c(&s4o_incl, generate_c_sfcdecl_c::sfcdecl_sd);
lbessard@70:   sfcdecl->print(symbol->fblock_body);
lbessard@70:   delete sfcdecl;
lbessard@121:   s4o_incl.print("\n");
lbessard@121:   
lbessard@70:   /* (A.5) Function Block data structure type name. */
lbessard@121:   s4o_incl.indent_left();
lbessard@121:   s4o_incl.print("} ");
lbessard@121:   symbol->fblock_name->accept(*typedecl);
lbessard@121:   s4o_incl.print(";\n\n");
lbessard@121:   delete typedecl;
lbessard@70: 
lbessard@70:   /* (B) Constructor */
lbessard@70:   /* (B.1) Constructor name... */
lbessard@70:   s4o.print(s4o.indent_spaces + "void ");
lbessard@70:   symbol->fblock_name->accept(*this);
lbessard@70:   s4o.print(FB_INIT_SUFFIX);
lbessard@70:   s4o.print("(");
lbessard@70: 
lbessard@70:   /* first and only parameter is a pointer to the data */
lbessard@70:   symbol->fblock_name->accept(*this);
lbessard@70:   s4o.print(" *");
lbessard@70:   s4o.print(FB_FUNCTION_PARAM);
lbessard@70:   s4o.print(") {\n");
lbessard@70:   s4o.indent_right();
lbessard@70: 
lbessard@70:   /* (B.2) Member initializations... */
lbessard@70:   s4o.print(s4o.indent_spaces);
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::constructorinit_vf,
lbessard@70:   				      generate_c_vardecl_c::input_vt |
lbessard@70:   				      generate_c_vardecl_c::output_vt |
lbessard@70:   				      generate_c_vardecl_c::inoutput_vt |
lbessard@70:   				      generate_c_vardecl_c::private_vt |
lbessard@70: 				        generate_c_vardecl_c::located_vt |
lbessard@70: 				        generate_c_vardecl_c::external_vt);
lbessard@70:   vardecl->print(symbol->var_declarations, NULL, FB_FUNCTION_PARAM"->");
lbessard@70:   delete vardecl;
lbessard@70:   s4o.print("\n");
lbessard@70:   /* (B.3) Generate private internal variables for SFC */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::sfcinit_sd);
lbessard@70:   sfcdecl->print(symbol->fblock_body, FB_FUNCTION_PARAM"->");
lbessard@70:   delete sfcdecl;
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "}\n\n");
lbessard@70: 
lbessard@70:   
lbessard@70:   /* (C) Function with FB body */
lbessard@70:   /* (C.1) Step definitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::stepdef_sd);
lbessard@70:   sfcdecl->print(symbol->fblock_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   /* (C.2) Action definitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::actiondef_sd);
lbessard@70:   sfcdecl->print(symbol->fblock_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   /* (C.3) Function declaration */
lbessard@70:   s4o.print("// Code part\n");
lbessard@70:   /* function interface */
lbessard@70:   s4o.print("void ");
lbessard@70:   symbol->fblock_name->accept(*this);
lbessard@70:   s4o.print(FB_FUNCTION_SUFFIX);
lbessard@70:   s4o.print("(");
lbessard@70:   /* first and only parameter is a pointer to the data */
lbessard@70:   symbol->fblock_name->accept(*this);
lbessard@70:   s4o.print(" *");
lbessard@70:   s4o.print(FB_FUNCTION_PARAM);
lbessard@70:   s4o.print(") {\n");
lbessard@70:   s4o.indent_right();
lbessard@70: 
lbessard@70:   /* (C.4) Initialize TEMP variables */
lbessard@70:   /* function body */
lbessard@70:   s4o.print(s4o.indent_spaces + "// Initialise TEMP variables\n");
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::init_vf,
lbessard@70: 				      generate_c_vardecl_c::temp_vt);
lbessard@70:   vardecl->print(symbol->var_declarations, NULL,  FB_FUNCTION_PARAM"->");
lbessard@70:   delete vardecl;
lbessard@70:   s4o.print("\n");
lbessard@70: 
lbessard@70:   /* (C.5) Function code */
lbessard@70:   generate_c_SFC_IL_ST_c generate_c_code(&s4o, symbol, FB_FUNCTION_PARAM"->");
lbessard@70:   symbol->fblock_body->accept(generate_c_code);
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "} // ");
lbessard@70:   symbol->fblock_name->accept(*this);
lbessard@70:   s4o.print(FB_FUNCTION_SUFFIX);
lbessard@70:   s4o.print(s4o.indent_spaces + "() \n\n");
lbessard@70: 
lbessard@70:   /* (C.6) Step undefinitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::stepundef_sd);
lbessard@70:   sfcdecl->print(symbol->fblock_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   /* (C.7) Action undefinitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::actionundef_sd);
lbessard@70:   sfcdecl->print(symbol->fblock_body);
lbessard@70:   delete sfcdecl;
lbessard@70: 
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print("\n\n\n\n");
lbessard@70: 
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: 
lbessard@70: /* The remaining temp_var_decls_c, temp_var_decls_list_c
lbessard@70:  * and non_retentive_var_decls_c are handled in the generate_c_vardecl_c class
lbessard@70:  */
lbessard@70: 
lbessard@70: 
lbessard@70: /**********************/
lbessard@70: /* B 1.5.3 - Programs */
lbessard@70: /**********************/
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: public:
lbessard@70: /*  PROGRAM program_type_name program_var_declarations_list function_block_body END_PROGRAM */
lbessard@70: //SYM_REF4(program_declaration_c, program_type_name, var_declarations, function_block_body, unused)
lbessard@70: void *visit(program_declaration_c *symbol) {
lbessard@70:   generate_c_vardecl_c *vardecl;
lbessard@70:   generate_c_sfcdecl_c *sfcdecl;
lbessard@121:   generate_c_typedecl_c *typedecl;
lbessard@70:   TRACE("program_declaration_c");
lbessard@70: 
lbessard@70:   /* start off by adding this declaration to the global
lbessard@70:    * program declaration symbol table...
lbessard@70:    */
lbessard@70:   program_type_symtable.insert(symbol->program_type_name, symbol);
lbessard@70: 
lbessard@70:   /* (A) Program data structure declaration... */
lbessard@121:   typedecl = new generate_c_typedecl_c(&s4o_incl);
lbessard@70:   /* (A.1) Data structure declaration */
lbessard@121:   s4o_incl.print("// PROGRAM ");
lbessard@121:   symbol->program_type_name->accept(*typedecl);
lbessard@121:   s4o_incl.print("\n// Data part\n");
lbessard@121:   s4o_incl.print("typedef struct {\n");
lbessard@121:   s4o_incl.indent_right();
lbessard@70: 
lbessard@70:   /* (A.2) Public variables: i.e. the program parameters... */
lbessard@121:   s4o_incl.print(s4o_incl.indent_spaces + "// PROGRAM Interface - IN, OUT, IN_OUT variables\n");
lbessard@121:   vardecl = new generate_c_vardecl_c(&s4o_incl,
lbessard@70:   				      generate_c_vardecl_c::local_vf,
lbessard@70:   				      generate_c_vardecl_c::input_vt |
lbessard@70:   				      generate_c_vardecl_c::output_vt |
lbessard@70:   				      generate_c_vardecl_c::inoutput_vt);
lbessard@70:   vardecl->print(symbol->var_declarations);
lbessard@70:   delete vardecl;
lbessard@121:   s4o_incl.print("\n");
lbessard@70:   /* (A.3) Private internal variables */
lbessard@121:   s4o_incl.print(s4o_incl.indent_spaces + "// PROGRAM private variables - TEMP, private and located variables\n");
lbessard@121:   vardecl = new generate_c_vardecl_c(&s4o_incl,
lbessard@70:                 generate_c_vardecl_c::local_vf,
lbessard@70:                 generate_c_vardecl_c::temp_vt |
lbessard@70:                 generate_c_vardecl_c::private_vt |
lbessard@70:                 generate_c_vardecl_c::located_vt |
lbessard@70:                 generate_c_vardecl_c::external_vt);
lbessard@70:   vardecl->print(symbol->var_declarations);
lbessard@70:   delete vardecl;
lbessard@70:   /* (A.4) Generate private internal variables for SFC */
lbessard@121:   sfcdecl = new generate_c_sfcdecl_c(&s4o_incl, generate_c_sfcdecl_c::sfcdecl_sd);
lbessard@70:   sfcdecl->print(symbol->function_block_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   /* (A.5) Program data structure type name. */
lbessard@121:   s4o_incl.indent_left();
lbessard@121:   s4o_incl.print("} ");
lbessard@121:   symbol->program_type_name->accept(*typedecl);
lbessard@121:   s4o_incl.print(";\n\n");
lbessard@121:   delete typedecl;
lbessard@70: 
lbessard@70:   /* (B) Constructor */
lbessard@70:   /* (B.1) Constructor name... */
lbessard@70:   s4o.print(s4o.indent_spaces + "void ");
lbessard@70:   symbol->program_type_name->accept(*this);
lbessard@70:   s4o.print(FB_INIT_SUFFIX);
lbessard@70:   s4o.print("(");
lbessard@70: 
lbessard@70:   /* first and only parameter is a pointer to the data */
lbessard@70:   symbol->program_type_name->accept(*this);
lbessard@70:   s4o.print(" *");
lbessard@70:   s4o.print(FB_FUNCTION_PARAM);
lbessard@70:   s4o.print(") {\n");
lbessard@70:   s4o.indent_right();
lbessard@70: 
lbessard@70:   /* (B.2) Member initializations... */
lbessard@70:   s4o.print(s4o.indent_spaces);
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::constructorinit_vf,
lbessard@70:   				      generate_c_vardecl_c::input_vt |
lbessard@70:   				      generate_c_vardecl_c::output_vt |
lbessard@70:   				      generate_c_vardecl_c::inoutput_vt |
lbessard@70:   				      generate_c_vardecl_c::private_vt |
lbessard@70:   				      generate_c_vardecl_c::located_vt |
lbessard@70: 				      generate_c_vardecl_c::external_vt);
lbessard@70:   vardecl->print(symbol->var_declarations, NULL,  FB_FUNCTION_PARAM"->");
lbessard@70:   delete vardecl;
lbessard@70:   s4o.print("\n");
lbessard@70:   /* (B.3) Generate private internal variables for SFC */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::sfcinit_sd);
lbessard@70:   sfcdecl->print(symbol->function_block_body,FB_FUNCTION_PARAM"->");
lbessard@70:   delete sfcdecl;
lbessard@70: 
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "}\n\n");
lbessard@70: 
lbessard@70:   /* (C) Function with PROGRAM body */
lbessard@70:   /* (C.1) Step definitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::stepdef_sd);
lbessard@70:   sfcdecl->print(symbol->function_block_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   /* (C.2) Action definitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::actiondef_sd);
lbessard@70:   sfcdecl->print(symbol->function_block_body);
lbessard@70:   delete sfcdecl;
lbessard@70: 
lbessard@70:   /* (C.3) Function declaration */
lbessard@70:   s4o.print("// Code part\n");
lbessard@70:   /* function interface */
lbessard@70:   s4o.print("void ");
lbessard@70:   symbol->program_type_name->accept(*this);
lbessard@70:   s4o.print(FB_FUNCTION_SUFFIX);
lbessard@70:   s4o.print("(");
lbessard@70:   /* first and only parameter is a pointer to the data */
lbessard@70:   symbol->program_type_name->accept(*this);
lbessard@70:   s4o.print(" *");
lbessard@70:   s4o.print(FB_FUNCTION_PARAM);
lbessard@70:   s4o.print(") {\n");
lbessard@70:   s4o.indent_right();
lbessard@70: 
lbessard@70:   /* (C.4) Initialize TEMP variables */
lbessard@70:   /* function body */
lbessard@70:   s4o.print(s4o.indent_spaces + "// Initialise TEMP variables\n");
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::init_vf,
lbessard@70: 				      generate_c_vardecl_c::temp_vt);
lbessard@70:   vardecl->print(symbol->var_declarations, NULL,  FB_FUNCTION_PARAM"->");
lbessard@70:   delete vardecl;
lbessard@70:   s4o.print("\n");
lbessard@70: 
lbessard@70:   /* (C.5) Function code */
lbessard@70:   generate_c_SFC_IL_ST_c generate_c_code(&s4o, symbol, FB_FUNCTION_PARAM"->");
lbessard@70:   symbol->function_block_body->accept(generate_c_code);
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "} // ");
lbessard@70:   symbol->program_type_name->accept(*this);
lbessard@70:   s4o.print(FB_FUNCTION_SUFFIX);
lbessard@70:   s4o.print(s4o.indent_spaces + "() \n\n");
lbessard@70: 
lbessard@70:   /* (C.6) Step undefinitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::stepundef_sd);
lbessard@70:   sfcdecl->print(symbol->function_block_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   /* (C.7) Action undefinitions */
lbessard@70:   sfcdecl = new generate_c_sfcdecl_c(&s4o, generate_c_sfcdecl_c::actionundef_sd);
lbessard@70:   sfcdecl->print(symbol->function_block_body);
lbessard@70:   delete sfcdecl;
lbessard@70:   
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print("\n\n\n\n");
lbessard@70: 
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: }; /* generate_c_pous_c */
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: class generate_c_config_c: public generate_c_typedecl_c {
lbessard@70: 
lbessard@70:     public:
lbessard@70:     generate_c_config_c(stage4out_c *s4o_ptr)
lbessard@70:       : generate_c_typedecl_c(s4o_ptr) {};
lbessard@70:     virtual ~generate_c_config_c(void) {}
lbessard@70: 
lbessard@70:     typedef enum {
lbessard@70:       initprotos_dt,
lbessard@70:       initdeclare_dt,
lbessard@70:       runprotos_dt,
lbessard@70:       rundeclare_dt
lbessard@70:     } declaretype_t;
lbessard@70: 
lbessard@70:     declaretype_t wanted_declaretype;
lbessard@70: 
lbessard@70: /********************************/
lbessard@70: /* B 1.7 Configuration elements */
lbessard@70: /********************************/
lbessard@70: 
lbessard@70: 
lbessard@70: public:
lbessard@70: /*
lbessard@70: CONFIGURATION configuration_name
lbessard@70:    optional_global_var_declarations
lbessard@70:    (resource_declaration_list | single_resource_declaration)
lbessard@70:    optional_access_declarations
lbessard@70:    optional_instance_specific_initializations
lbessard@70: END_CONFIGURATION
lbessard@70: */
lbessard@70: /*
lbessard@70: SYM_REF6(configuration_declaration_c, configuration_name, global_var_declarations, resource_declarations, access_declarations, instance_specific_initializations, unused)
lbessard@70: */
lbessard@70: void *visit(configuration_declaration_c *symbol) {
lbessard@70:   generate_c_vardecl_c *vardecl;
lbessard@70:   
lbessard@70:   /* Insert the header... */
lbessard@70:   s4o.print("/*******************************************/\n");
lbessard@70:   s4o.print("/*     FILE GENERATED BY iec2c             */\n");
lbessard@70:   s4o.print("/* Editing this file is not recommended... */\n");
lbessard@70:   s4o.print("/*******************************************/\n\n");
lbessard@70:   s4o.print("#include \"iec_std_lib.h\"\n\n");
lbessard@70:   
lbessard@70:   /* (A) configuration declaration... */
lbessard@70:   /* (A.1) configuration name in comment */
lbessard@70:   s4o.print("// CONFIGURATION ");
lbessard@70:   symbol->configuration_name->accept(*this);
lbessard@70:   s4o.print("\n");
lbessard@70:   
lbessard@70:   /* (A.2) Global variables */
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::local_vf,
lbessard@70:   				      generate_c_vardecl_c::global_vt);
lbessard@70:   vardecl->print(symbol);
lbessard@70:   delete vardecl;
lbessard@70:   s4o.print("\n");
lbessard@70: 
lbessard@70:   /* (B) Initialisation Function */
lbessard@70:   /* (B.1) Ressources initialisation protos... */
lbessard@70:   wanted_declaretype = initprotos_dt;
lbessard@70:   symbol->resource_declarations->accept(*this);
lbessard@70:   s4o.print("\n");
lbessard@70:   
lbessard@70:   /* (B.2) Initialisation function name... */
lbessard@70:   s4o.print(s4o.indent_spaces + "void config");
lbessard@70:   s4o.print(FB_INIT_SUFFIX);
lbessard@70:   s4o.print("(void) {\n");
lbessard@70:   s4o.indent_right();
lbessard@70:   
lbessard@70:   /* (B.3) Global variables initializations... */
lbessard@70:   s4o.print(s4o.indent_spaces);
lbessard@70:   vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:   				      generate_c_vardecl_c::constructorinit_vf,
lbessard@70:   				      generate_c_vardecl_c::global_vt);
lbessard@70:   vardecl->print(symbol);
lbessard@70:   delete vardecl;
lbessard@70:   s4o.print("\n");
lbessard@70:   
lbessard@70:   /* (B.3) Resources initializations... */
lbessard@70:   wanted_declaretype = initdeclare_dt;
lbessard@70:   symbol->resource_declarations->accept(*this);
lbessard@70:   
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "}\n\n");
lbessard@70: 
lbessard@70: 
lbessard@70:   /* (C) Run Function*/
lbessard@70:   /* (C.1) Resources run functions protos... */
lbessard@70:   wanted_declaretype = runprotos_dt;
lbessard@70:   symbol->resource_declarations->accept(*this);
lbessard@70:   s4o.print("\n");
lbessard@70: 
lbessard@70:   /* (C.2) Run function name... */
lbessard@70:   s4o.print(s4o.indent_spaces + "void config");
lbessard@70:   s4o.print(FB_RUN_SUFFIX);
lbessard@70:   s4o.print("(int tick) {\n");
lbessard@70:   s4o.indent_right();
lbessard@70: 
lbessard@70:   /* (C.3) Resources initializations... */
lbessard@70:   wanted_declaretype = rundeclare_dt;
lbessard@70:   symbol->resource_declarations->accept(*this);
lbessard@70: 
lbessard@70:   /* (C.3) Close Public Function body */
lbessard@70:   s4o.indent_left();
lbessard@70:   s4o.print(s4o.indent_spaces + "}\n");
lbessard@70: 
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: void *visit(resource_declaration_c *symbol) {
lbessard@70:   if (wanted_declaretype == initprotos_dt || wanted_declaretype == runprotos_dt) {
lbessard@70:     s4o.print(s4o.indent_spaces + "void ");
lbessard@70:     symbol->resource_name->accept(*this);
lbessard@70:     if (wanted_declaretype == initprotos_dt) {
lbessard@70:       s4o.print(FB_INIT_SUFFIX);
lbessard@70:       s4o.print("(void);\n");
lbessard@70:     }
lbessard@70:     else {
lbessard@70:       s4o.print(FB_RUN_SUFFIX);
lbessard@70:       s4o.print("(int tick);\n");
lbessard@70:     }
lbessard@70:   }
lbessard@70:   if (wanted_declaretype == initdeclare_dt || wanted_declaretype == rundeclare_dt) {
lbessard@70:     s4o.print(s4o.indent_spaces);
lbessard@70:     symbol->resource_name->accept(*this);
lbessard@70:     if (wanted_declaretype == initdeclare_dt) {
lbessard@70:       s4o.print(FB_INIT_SUFFIX);
lbessard@70:       s4o.print("();\n");
lbessard@70:     }
lbessard@70:     else {
lbessard@70:       s4o.print(FB_RUN_SUFFIX);
lbessard@70:       s4o.print("(tick);\n");
lbessard@70:     }
lbessard@70:   }
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: void *visit(single_resource_declaration_c *symbol) {
lbessard@70:   if (wanted_declaretype == initprotos_dt || wanted_declaretype == runprotos_dt) {
lbessard@70:     s4o.print(s4o.indent_spaces + "void RESOURCE");
lbessard@70:     if (wanted_declaretype == initprotos_dt) {
lbessard@70:       s4o.print(FB_INIT_SUFFIX);
lbessard@70:       s4o.print("(void);\n");
lbessard@70:     }
lbessard@70:     else {
lbessard@70:       s4o.print(FB_RUN_SUFFIX);
lbessard@70:       s4o.print("(int tick);\n");
lbessard@70:     }
lbessard@70:   }
lbessard@70:   if (wanted_declaretype == initdeclare_dt || wanted_declaretype == rundeclare_dt) {
lbessard@70:     s4o.print(s4o.indent_spaces + "RESOURCE");
lbessard@70:     if (wanted_declaretype == initdeclare_dt) {
lbessard@70:       s4o.print(FB_INIT_SUFFIX);
lbessard@70:       s4o.print("();\n");
lbessard@70:     }
lbessard@70:     else {
lbessard@70:       s4o.print(FB_RUN_SUFFIX);
lbessard@70:       s4o.print("(tick);\n");
lbessard@70:     }
lbessard@70:   }
lbessard@70:   return NULL;
lbessard@70: }
lbessard@70: 
lbessard@70: };
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: 
lbessard@70: class generate_c_resources_c: public generate_c_typedecl_c {
lbessard@70: 
lbessard@70:   search_var_instance_decl_c *search_config_instance;
lbessard@70:   search_var_instance_decl_c *search_resource_instance;
lbessard@70: 
lbessard@70:   private:
lbessard@70:     /* The name of the resource curretnly being processed... */
lbessard@70:     symbol_c *current_resource_name;
lbessard@70:     symbol_c *current_global_vars;
lbessard@70: 
lbessard@70:   public:
lbessard@70:     generate_c_resources_c(stage4out_c *s4o_ptr, symbol_c *config_scope, symbol_c *resource_scope, unsigned long time)
lbessard@70:       : generate_c_typedecl_c(s4o_ptr) {
lbessard@70:       search_config_instance = new search_var_instance_decl_c(config_scope);
lbessard@70:       search_resource_instance = new search_var_instance_decl_c(resource_scope);
lbessard@70:       common_ticktime = time;
lbessard@70:       current_resource_name = NULL;
lbessard@70:       current_global_vars = NULL;
lbessard@70:     };
lbessard@70:     virtual ~generate_c_resources_c(void) {
lbessard@70:       delete search_config_instance;
lbessard@70:       delete search_resource_instance;
lbessard@70:     }
lbessard@70: 
lbessard@70:     typedef enum {
lbessard@70:       declare_dt,
lbessard@70:       init_dt,
lbessard@70:       run_dt
lbessard@70:     } declaretype_t;
lbessard@70: 
lbessard@70:     declaretype_t wanted_declaretype;
lbessard@70: 
lbessard@70:     unsigned long common_ticktime;
lbessard@70:     
lbessard@70:     const char *current_program_name;
lbessard@70: 
lbessard@70:     typedef enum {
lbessard@70:       assign_at,
lbessard@70:       send_at
lbessard@70:     } assigntype_t;
lbessard@70: 
lbessard@70:     assigntype_t wanted_assigntype;
lbessard@70: 
lbessard@70: /********************************/
lbessard@70: /* B 1.7 Configuration elements */
lbessard@70: /********************************/
lbessard@70: 
lbessard@70: /*
lbessard@70: RESOURCE resource_name ON resource_type_name
lbessard@70:    optional_global_var_declarations
lbessard@70:    single_resource_declaration
lbessard@70: END_RESOURCE
lbessard@70: */
lbessard@70: // SYM_REF4(resource_declaration_c, resource_name, resource_type_name, global_var_declarations, resource_declaration)
lbessard@70:     void *visit(resource_declaration_c *symbol) {
lbessard@70:       current_resource_name = symbol->resource_name;
lbessard@70:       current_global_vars = symbol->global_var_declarations;
lbessard@70:       
lbessard@70:       symbol->resource_declaration->accept(*this);
lbessard@70:       
lbessard@70:       current_resource_name = NULL;
lbessard@70:       current_global_vars = NULL;
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70: /* task_configuration_list program_configuration_list */
lbessard@70: // SYM_REF2(single_resource_declaration_c, task_configuration_list, program_configuration_list)
lbessard@70:     void *visit(single_resource_declaration_c *symbol) {
lbessard@70:     	bool single_resource = current_resource_name == NULL;
lbessard@70:       if (single_resource)
lbessard@70:         current_resource_name = new identifier_c("RESOURCE");
lbessard@70:       generate_c_vardecl_c *vardecl;
lbessard@70:       
lbessard@70:       /* Insert the header... */
lbessard@70:       s4o.print("/*******************************************/\n");
lbessard@70:       s4o.print("/*     FILE GENERATED BY iec2c             */\n");
lbessard@70:       s4o.print("/* Editing this file is not recommended... */\n");
lbessard@70:       s4o.print("/*******************************************/\n\n");
lbessard@70:       s4o.print("#include \"iec_std_lib.h\"\n\n");
lbessard@70:       
lbessard@70:       /* (A) resource declaration... */
lbessard@70:       /* (A.1) resource name in comment */
lbessard@70:       s4o.print("// RESOURCE ");
lbessard@70:       current_resource_name->accept(*this);
lbessard@120:       s4o.print("\n\n");
lbessard@120:       
lbessard@120:       s4o.print("extern int common_ticktime__;\n\n");
lbessard@70:        
lbessard@70:       /* (A.2) Global variables... */
lbessard@70:       if (current_global_vars != NULL) {
lbessard@70:         vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:                       generate_c_vardecl_c::local_vf,
etisserant@138:                       generate_c_vardecl_c::global_vt,
etisserant@138:                       current_resource_name);
lbessard@70:         vardecl->print(current_global_vars);
lbessard@70:         delete vardecl;
lbessard@120:         s4o.print("\n");
lbessard@70:       }
lbessard@70:       
lbessard@70:       /* (A.3) POUs inclusion */
lbessard@121:       s4o.print("#include \"POUS.h\"\n\n");
lbessard@70:       s4o.print("#include \"POUS.c\"\n\n");
lbessard@70:       
lbessard@70:       /* (A.4) Resource programs declaration... */
lbessard@70:       wanted_declaretype = declare_dt;
lbessard@70:       symbol->program_configuration_list->accept(*this);
lbessard@70:       s4o.print("\n");
lbessard@70:       
lbessard@70:       /* (B) resource initialisation function... */
lbessard@70:       /* (B.1) initialisation function name... */
lbessard@70:       s4o.print("void ");
lbessard@70:       current_resource_name->accept(*this);
lbessard@70:       s4o.print(FB_INIT_SUFFIX);
lbessard@70:       s4o.print("(void) {\n");
lbessard@70:       s4o.indent_right();
lbessard@70:       
lbessard@70:       /* (B.2) Global variables initialisations... */
lbessard@70:       if (current_global_vars != NULL) {
lbessard@70:         s4o.print(s4o.indent_spaces);
lbessard@70:         vardecl = new generate_c_vardecl_c(&s4o,
lbessard@70:                       generate_c_vardecl_c::constructorinit_vf,
lbessard@70:                       generate_c_vardecl_c::global_vt);
lbessard@70:         vardecl->print(current_global_vars);
lbessard@70:         delete vardecl;
lbessard@70:       }
lbessard@70:       s4o.print("\n");
lbessard@70:       
lbessard@70:       /* (B.3) Resource programs initialisations... */
lbessard@70:       wanted_declaretype = init_dt;
lbessard@70:       symbol->program_configuration_list->accept(*this);
lbessard@70:       
lbessard@70:       s4o.indent_left();
lbessard@70:       s4o.print("}\n\n");
lbessard@70:       
lbessard@70:       /* (C) Resource run function... */
lbessard@70:       /* (C.1) Run function name... */
lbessard@70:       s4o.print("void ");
lbessard@70:       current_resource_name->accept(*this);
lbessard@70:       s4o.print(FB_RUN_SUFFIX);
lbessard@70:       s4o.print("(int tick) {\n");
lbessard@70:       s4o.indent_right();
lbessard@70:       
lbessard@70:       /* (C.2) Task management... */
lbessard@70:       symbol->task_configuration_list->accept(*this);
lbessard@70:       
lbessard@70:       /* (C.3) Program run declaration... */
lbessard@70:       wanted_declaretype = run_dt;
lbessard@70:       symbol->program_configuration_list->accept(*this);
lbessard@70:       
lbessard@70:       s4o.indent_left();
lbessard@70:       s4o.print("}\n\n");
lbessard@70:       
lbessard@70:       if (single_resource) {
lbessard@70:         delete current_resource_name;
lbessard@70:         current_resource_name = NULL;
lbessard@70:       }
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: /*  PROGRAM [RETAIN | NON_RETAIN] program_name [WITH task_name] ':' program_type_name ['(' prog_conf_elements ')'] */
lbessard@70: //SYM_REF6(program_configuration_c, retain_option, program_name, task_name, program_type_name, prog_conf_elements, unused)
lbessard@70:     void *visit(program_configuration_c *symbol) {
lbessard@70:       if (wanted_declaretype == declare_dt) {
lbessard@70:         s4o.print(s4o.indent_spaces);
lbessard@70:         symbol->program_type_name->accept(*this);
lbessard@70:         s4o.print(" ");
etisserant@138:         current_resource_name->accept(*this);
etisserant@138:         s4o.print("__");
lbessard@70:         symbol->program_name->accept(*this);
etisserant@138:         s4o.print(";\n#define ");
etisserant@138:         symbol->program_name->accept(*this);
etisserant@138:         s4o.print(" ");
etisserant@138:         current_resource_name->accept(*this);
etisserant@138:         s4o.print("__");
etisserant@138:         symbol->program_name->accept(*this);
etisserant@138:         s4o.print("\n");
lbessard@70:       }
lbessard@70:       if (wanted_declaretype == init_dt) {
lbessard@70:         s4o.print(s4o.indent_spaces);
lbessard@70:         symbol->program_type_name->accept(*this);
lbessard@70:         s4o.print(FB_INIT_SUFFIX);
lbessard@70:         s4o.print("(&");
lbessard@70:         symbol->program_name->accept(*this);
lbessard@70:         s4o.print(");\n");
lbessard@70:       }
lbessard@70:       if (wanted_declaretype == run_dt) {
lbessard@70:         current_program_name = ((identifier_c*)(symbol->program_name))->value;
lbessard@70:         if (symbol->task_name != NULL) {
lbessard@70:           s4o.print(s4o.indent_spaces);
lbessard@70:           s4o.print("if (!");
lbessard@70:           symbol->task_name->accept(*this);
lbessard@70:           s4o.print(") {\n");
lbessard@70:           s4o.indent_right(); 
lbessard@70:         }
lbessard@70:         
lbessard@70:         wanted_assigntype = assign_at;
lbessard@70:         if (symbol->prog_conf_elements != NULL)
lbessard@70:           symbol->prog_conf_elements->accept(*this);
lbessard@70:         
lbessard@70:         s4o.print(s4o.indent_spaces);
lbessard@70:         symbol->program_type_name->accept(*this);
lbessard@70:         s4o.print(FB_FUNCTION_SUFFIX);
lbessard@70:         s4o.print("(&");
lbessard@70:         symbol->program_name->accept(*this);
lbessard@70:         s4o.print(");\n");
lbessard@70:         
lbessard@70:         wanted_assigntype = send_at;
lbessard@70:         if (symbol->prog_conf_elements != NULL)
lbessard@70:           symbol->prog_conf_elements->accept(*this);
lbessard@70:         
lbessard@70:         if (symbol->task_name != NULL) {
lbessard@70:           s4o.indent_left();
lbessard@70:           s4o.print(s4o.indent_spaces + "}\n");
lbessard@70:         }
lbessard@70:       }
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: /*  TASK task_name task_initialization */
lbessard@70: //SYM_REF2(task_configuration_c, task_name, task_initialization)
lbessard@70:     void *visit(task_configuration_c *symbol) {
lbessard@70:       s4o.print(s4o.indent_spaces + "int ");
lbessard@70:       symbol->task_name->accept(*this);
lbessard@70:       s4o.print(" = ");
lbessard@70:       symbol->task_initialization->accept(*this);
lbessard@70:       s4o.print(";\n");
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: /*  '(' [SINGLE ASSIGN data_source ','] [INTERVAL ASSIGN data_source ','] PRIORITY ASSIGN integer ')' */
lbessard@70: //SYM_REF4(task_initialization_c, single_data_source, interval_data_source, priority_data_source, unused)
lbessard@70:     void *visit(task_initialization_c *symbol) {
lbessard@70:       if (symbol->interval_data_source != NULL) {
lbessard@70:         calculate_time_c calculate_time;
lbessard@70:         symbol->interval_data_source->accept(calculate_time);
lbessard@70:         unsigned long time = calculate_time.get_time();
lbessard@70:         if (time != 0) {
lbessard@70:           s4o.print("tick % ");
lbessard@70:           s4o.print_integer((int)(time / common_ticktime));
lbessard@70:         }
lbessard@70:         else
lbessard@70:           s4o.print("1");
lbessard@70:       }
lbessard@70:       else
lbessard@70:         s4o.print("1");
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70: /*  any_symbolic_variable ASSIGN prog_data_source */
lbessard@70: //SYM_REF2(prog_cnxn_assign_c, symbolic_variable, prog_data_source)
lbessard@70:     void *visit(prog_cnxn_assign_c *symbol) {
lbessard@70:       if (wanted_assigntype == assign_at) {
lbessard@70:         symbol_c *var_decl;
lbessard@70:         unsigned int vartype = 0;
lbessard@70:         symbol_c *current_var_reference = ((global_var_reference_c *)(symbol->prog_data_source))->global_var_name;
lbessard@70:         var_decl = search_resource_instance->get_decl(current_var_reference);
lbessard@70:         if (var_decl == NULL) {
lbessard@70:           var_decl = search_config_instance->get_decl(current_var_reference);
lbessard@70:           if (var_decl == NULL)
lbessard@70:             ERROR;
lbessard@70:           else
lbessard@70:             vartype = search_config_instance->get_vartype();
lbessard@70:         }
lbessard@70:         else
lbessard@70:           vartype = search_resource_instance->get_vartype();
lbessard@70:         
lbessard@70:         s4o.print(s4o.indent_spaces + "{extern ");
lbessard@70:         var_decl->accept(*this);
lbessard@70:         s4o.print(" ");
lbessard@70:         symbol->prog_data_source->accept(*this);
lbessard@70:         s4o.print("; ");
lbessard@70:         s4o.print(current_program_name);
lbessard@70:         s4o.print(".");
lbessard@70:         symbol->symbolic_variable->accept(*this);
lbessard@70:         s4o.print(" = ");
lbessard@70:         if (vartype || search_var_instance_decl_c::global_vt)
lbessard@70:           s4o.print("*");
lbessard@70:         symbol->prog_data_source->accept(*this);
lbessard@70:         s4o.print(";}\n");
lbessard@70:       }
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70: /* any_symbolic_variable SENDTO data_sink */
lbessard@70: //SYM_REF2(prog_cnxn_sendto_c, symbolic_variable, data_sink)
lbessard@70:     void *visit(prog_cnxn_sendto_c *symbol) {
lbessard@70:       if (wanted_assigntype == send_at) {
lbessard@70:         symbol_c *var_decl;
lbessard@70:         unsigned int vartype = 0;
lbessard@70:         symbol_c *current_var_reference = ((global_var_reference_c *)(symbol->data_sink))->global_var_name;
lbessard@70:         var_decl = search_resource_instance->get_decl(current_var_reference);
lbessard@70:         if (var_decl == NULL) {
lbessard@70:           var_decl = search_config_instance->get_decl(current_var_reference);
lbessard@70:           if (var_decl == NULL)
lbessard@70:             ERROR;
lbessard@70:           else
lbessard@70:             vartype = search_config_instance->get_vartype();
lbessard@70:         }
lbessard@70:         else
lbessard@70:           vartype = search_resource_instance->get_vartype();
lbessard@70:         
lbessard@70:         s4o.print(s4o.indent_spaces);
lbessard@70:         s4o.print(s4o.indent_spaces + "{extern ");
lbessard@70:         var_decl->accept(*this);
lbessard@70:         s4o.print(" ");
lbessard@70:         symbol->data_sink->accept(*this);
lbessard@70:         s4o.print("; ");
lbessard@70:         if (vartype || search_var_instance_decl_c::global_vt)
lbessard@70:           s4o.print("*");
lbessard@70:         symbol->data_sink->accept(*this);
lbessard@70:         s4o.print(" = ");
lbessard@70:         s4o.print(current_program_name);
lbessard@70:         s4o.print(".");
lbessard@70:         symbol->symbolic_variable->accept(*this);
lbessard@70:         s4o.print("};\n");
lbessard@70:       }
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70: };
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: class generate_c_c: public iterator_visitor_c {
lbessard@70:   protected:
lbessard@70:     stage4out_c &s4o;
lbessard@70:     stage4out_c pous_s4o;
lbessard@121:     stage4out_c pous_incl_s4o;
lbessard@70:     stage4out_c located_variables_s4o;
lbessard@111:     stage4out_c variables_s4o;
lbessard@70:     generate_c_pous_c generate_c_pous;
lbessard@111:     
lbessard@70:     symbol_c *current_configuration;
lbessard@70: 
lbessard@70:     const char *current_name;
lbessard@70:     const char *current_builddir;
lbessard@70: 
lbessard@70:     unsigned long common_ticktime;
lbessard@70: 
lbessard@70:   public:
lbessard@70:     generate_c_c(stage4out_c *s4o_ptr, const char *builddir): 
lbessard@70:             s4o(*s4o_ptr),
lbessard@70:             pous_s4o(builddir, "POUS", "c"),
lbessard@121:             pous_incl_s4o(builddir, "POUS", "h"),
lbessard@70:             located_variables_s4o(builddir, "LOCATED_VARIABLES","h"),
etisserant@112:             variables_s4o(builddir, "VARIABLES","csv"),
lbessard@121:             generate_c_pous(&pous_s4o, &pous_incl_s4o) {
lbessard@70:       current_builddir = builddir;
lbessard@70:       current_configuration = NULL;
lbessard@70:     }
lbessard@70:             
lbessard@70:     ~generate_c_c(void) {}
lbessard@70: 
lbessard@70: /***************************/
lbessard@70: /* B 0 - Programming Model */
lbessard@70: /***************************/
lbessard@70:     void *visit(library_c *symbol) {
lbessard@121:       pous_incl_s4o.print("#ifndef __POUS_H\n#define __POUS_H\n\n");
lbessard@70:       for(int i = 0; i < symbol->n; i++) {
lbessard@70:         symbol->elements[i]->accept(*this);
lbessard@70:       }
lbessard@121:       pous_incl_s4o.print("#endif //__POUS_H\n");
lbessard@121:       
lbessard@121:       generate_var_list_c generate_var_list(&variables_s4o, symbol);
lbessard@121:       generate_var_list.generate_programs(symbol);
lbessard@121:       generate_var_list.generate_variables(symbol);
lbessard@111:       
lbessard@98:       generate_location_list_c generate_location_list(&located_variables_s4o);
lbessard@98:       symbol->accept(generate_location_list);
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70: /*************************/
lbessard@70: /* B.1 - Common elements */
lbessard@70: /*************************/
lbessard@70: /*******************************************/
lbessard@70: /* B 1.1 - Letters, digits and identifiers */
lbessard@70: /*******************************************/
lbessard@70:     void *visit(identifier_c *symbol) {
lbessard@70:     	current_name = symbol->value;
lbessard@70:     	return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@98: /********************************/
lbessard@98: /* B 1.3.3 - Derived data types */
lbessard@98: /********************************/
lbessard@98:     /*  TYPE type_declaration_list END_TYPE */
lbessard@98:     void *visit(data_type_declaration_c *symbol) {
lbessard@98:       symbol->accept(generate_c_pous);
lbessard@98:       return NULL;
lbessard@98:     }
lbessard@98: 
lbessard@70: /**************************************/
lbessard@70: /* B.1.5 - Program organization units */
lbessard@70: /**************************************/
lbessard@70: /***********************/
lbessard@70: /* B 1.5.1 - Functions */
lbessard@70: /***********************/
lbessard@70:     void *visit(function_declaration_c *symbol) {
lbessard@70:     	symbol->accept(generate_c_pous);
lbessard@70:     	return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: /*****************************/
lbessard@70: /* B 1.5.2 - Function Blocks */
lbessard@70: /*****************************/
lbessard@70:     void *visit(function_block_declaration_c *symbol) {
lbessard@70:     	symbol->accept(generate_c_pous);
lbessard@70:     	return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: /**********************/
lbessard@70: /* B 1.5.3 - Programs */
lbessard@70: /**********************/    
lbessard@70:     void *visit(program_declaration_c *symbol) {
lbessard@70:     	symbol->accept(generate_c_pous);
lbessard@70:     	return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: 
lbessard@70: /********************************/
lbessard@70: /* B 1.7 Configuration elements */
lbessard@70: /********************************/
lbessard@70:     void *visit(configuration_declaration_c *symbol) {
lbessard@70:   	  static int configuration_count = 0;
lbessard@70:   
lbessard@70:       if (configuration_count++) {
lbessard@70:         /* the first configuration is the one we will use!! */
lbessard@70:         ERROR;
lbessard@70:       }
lbessard@70:       
lbessard@70:       current_configuration = symbol;
lbessard@70:       
lbessard@70:       calculate_common_ticktime_c calculate_common_ticktime;
lbessard@70:       symbol->accept(calculate_common_ticktime);
lbessard@70:       common_ticktime = calculate_common_ticktime.get_ticktime();
lbessard@70:       
lbessard@70:       symbol->configuration_name->accept(*this);
lbessard@70:       stage4out_c config_s4o(current_builddir, current_name, "c");
lbessard@70:       generate_c_config_c generate_c_config(&config_s4o);
lbessard@70:       symbol->accept(generate_c_config);
lbessard@70:         
lbessard@70:       config_s4o.print("int common_ticktime__ = ");
lbessard@70:       config_s4o.print_integer((int)(common_ticktime / 1000000));
lbessard@70:       config_s4o.print("; /*ms*/\n");
lbessard@70:       
lbessard@70:       symbol->resource_declarations->accept(*this);
lbessard@70: 
lbessard@70:       current_configuration = NULL;
lbessard@70:       
lbessard@70:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70:     void *visit(resource_declaration_c *symbol) {
lbessard@70:     	symbol->resource_name->accept(*this);
lbessard@70:     	stage4out_c resources_s4o(current_builddir, current_name, "c");
lbessard@70:       generate_c_resources_c generate_c_resources(&resources_s4o, current_configuration, symbol, common_ticktime);
lbessard@70:     	symbol->accept(generate_c_resources);
lbessard@70:     	return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70:     void *visit(single_resource_declaration_c *symbol) {
lbessard@70:     	stage4out_c resources_s4o(current_builddir, "RESOURCE", "c");
lbessard@70:       generate_c_resources_c generate_c_resources(&resources_s4o, current_configuration, symbol, common_ticktime);
lbessard@70:     	symbol->accept(generate_c_resources);
lbessard@70:     	return NULL;
lbessard@70:     }
lbessard@70:     
lbessard@70: };
lbessard@70: 
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: /***********************************************************************/
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: 
lbessard@70: visitor_c *new_code_generator(stage4out_c *s4o, const char *builddir)  {return new generate_c_c(s4o, builddir);}
lbessard@70: void delete_code_generator(visitor_c *code_generator) {delete code_generator;}
lbessard@70: 
lbessard@70: