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"
mario@181: #include "../../absyntax_utils/absyntax_utils.hh"
lbessard@70: 
lbessard@70: #include "../stage4.hh"
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: /***********************************************************************/
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: 
laurent@217: 
laurent@217: /* Variable declaration symbol for accessor macros */
laurent@217: #define DECLARE_VAR "__DECLARE_VAR"
laurent@217: #define DECLARE_GLOBAL "__DECLARE_GLOBAL"
laurent@217: #define DECLARE_GLOBAL_LOCATION "__DECLARE_GLOBAL_LOCATION"
laurent@217: #define DECLARE_GLOBAL_LOCATED "__DECLARE_GLOBAL_LOCATED"
laurent@217: #define DECLARE_EXTERNAL "__DECLARE_EXTERNAL"
laurent@217: #define DECLARE_LOCATED "__DECLARE_LOCATED"
laurent@217: 
laurent@217: /* Variable declaration symbol for accessor macros */
laurent@217: #define INIT_VAR "__INIT_VAR"
laurent@217: #define INIT_GLOBAL "__INIT_GLOBAL"
laurent@217: #define INIT_GLOBAL_LOCATED "__INIT_GLOBAL_LOCATED"
laurent@217: #define INIT_EXTERNAL "__INIT_EXTERNAL"
laurent@217: #define INIT_LOCATED "__INIT_LOCATED"
laurent@217: #define INIT_LOCATED_VALUE "__INIT_LOCATED_VALUE"
laurent@217: 
laurent@217: 
laurent@217: /* Variable getter symbol for accessor macros */
laurent@217: #define GET_VAR "__GET_VAR"
laurent@217: #define GET_EXTERNAL "__GET_EXTERNAL"
laurent@217: #define GET_LOCATED "__GET_LOCATED"
laurent@217: #define GET_VAR_BY_REF "__GET_VAR_BY_REF"
laurent@217: #define GET_EXTERNAL_BY_REF "__GET_EXTERNAL_BY_REF"
laurent@217: #define GET_LOCATED_BY_REF "__GET_LOCATED_BY_REF"
laurent@217: 
laurent@217: /* Variable setter symbol for accessor macros */
laurent@217: #define SET_VAR "__SET_VAR"
laurent@217: #define SET_EXTERNAL "__SET_EXTERNAL"
laurent@231: #define SET_COMPLEX_EXTERNAL "__SET_COMPLEX_EXTERNAL"
laurent@217: #define SET_LOCATED "__SET_LOCATED"
laurent@217: 
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: 
laurent@217: /***********************************************************************/
laurent@217: /***********************************************************************/
laurent@217: /***********************************************************************/
laurent@217: /***********************************************************************/
laurent@217: 
laurent@217: #include "generate_c_base.cc"
laurent@217: #include "generate_c_typedecl.cc"
laurent@217: #include "generate_c_sfcdecl.cc"
laurent@217: #include "generate_c_vardecl.cc"
laurent@217: #include "generate_c_configbody.cc"
laurent@217: #include "generate_location_list.cc"
laurent@217: #include "generate_var_list.cc"
laurent@217: 
laurent@217: /***********************************************************************/
laurent@217: /***********************************************************************/
laurent@217: /***********************************************************************/
laurent@217: /***********************************************************************/
laurent@217: 
lbessard@70: #include "generate_c_st.cc"
lbessard@70: #include "generate_c_il.cc"
laurent@217: #include "generate_c_inlinefcall.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:
laurent@210:     unsigned long long time;
lbessard@70:     float current_value;
lbessard@70:   
lbessard@70:   public:
lbessard@70:     calculate_time_c(void){time = 0;};
lbessard@70:     
laurent@210:     unsigned long 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);
laurent@210:       time += (unsigned long 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);
laurent@210:       time += (unsigned long 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);
laurent@210:       time += (unsigned long 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);
laurent@210:       time += (unsigned long 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);
laurent@210:       time += (unsigned long 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:
laurent@210:     unsigned long long common_ticktime;
laurent@210:     unsigned long long least_common_ticktime;
lbessard@70:     
lbessard@70:   public:
laurent@210:     calculate_common_ticktime_c(void){
laurent@210:       common_ticktime = 0;
laurent@210:       least_common_ticktime = 0;
laurent@210:     }
laurent@210:     
laurent@210:     unsigned long long euclide(unsigned long long a, unsigned long long b) {
laurent@210:       unsigned long 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:     
laurent@210:     void update_ticktime(unsigned long 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);
laurent@210:       if (least_common_ticktime == 0)
laurent@210:         least_common_ticktime = time;
laurent@210:       else
laurent@210:         least_common_ticktime = (least_common_ticktime * time) / common_ticktime;
laurent@210:     }
laurent@210: 
laurent@210:     unsigned long long get_common_ticktime(void) {
lbessard@70:       return common_ticktime;
lbessard@70:     }
lbessard@70: 
laurent@210:     unsigned long get_greatest_tick_count(void) {
laurent@210:       unsigned long long least_common_tick = least_common_ticktime / common_ticktime;
laurent@210:       if (least_common_tick >> 32)
laurent@210:         ERROR;
laurent@210:       return (unsigned long)(~(((unsigned long)-2) % (unsigned long)least_common_tick) + 1);
laurent@210:     }
laurent@210: 
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;
laurent@210:       unsigned long 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: 
laurent@217: /* A helper class that knows how to generate code for the SFC, 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;
laurent@217:     symbol_c *fbname;
lbessard@70:     const char *variable_prefix;
lbessard@70: 
lbessard@70:   public:
laurent@217:     generate_c_SFC_IL_ST_c(stage4out_c *s4o_ptr, symbol_c *name, 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: 
laurent@217: generate_c_SFC_IL_ST_c::generate_c_SFC_IL_ST_c(stage4out_c *s4o_ptr, symbol_c *name, 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;
laurent@217:   this->fbname = name;
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) {
laurent@217:   generate_c_sfc_c generate_c_sfc(s4o_ptr, fbname, 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) {
laurent@217:   generate_c_il_c generate_c_il(s4o_ptr, fbname, 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) {
laurent@217:   generate_c_st_c generate_c_st(s4o_ptr, fbname, 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:   /* (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,
ccb@202:                                      generate_c_vardecl_c::finterface_vf,
ccb@202:                                      generate_c_vardecl_c::input_vt    |
ccb@202:                                      generate_c_vardecl_c::output_vt   |
ccb@202:                                      generate_c_vardecl_c::inoutput_vt |
ccb@202:                                      generate_c_vardecl_c::en_vt       |
ccb@202:                                      generate_c_vardecl_c::eno_vt);
lbessard@146:   vardecl->print(symbol->var_declarations_list);
lbessard@146:   delete vardecl;
lbessard@146:   
lbessard@146:   s4o.indent_left();
lbessard@146:   
lbessard@146:   s4o.print(")\n" + s4o.indent_spaces + "{\n");
lbessard@146: 
lbessard@146:   /* (B) Function local variable declaration */
lbessard@146:   /* (B.1) Variables declared in ST source code */
lbessard@146:   s4o.indent_right();
lbessard@146:   
ccb@202:   vardecl = new generate_c_vardecl_c(&s4o,
ccb@202:                 generate_c_vardecl_c::localinit_vf,
ccb@202:                 generate_c_vardecl_c::output_vt   |
lbessard@146:                 generate_c_vardecl_c::inoutput_vt |
ccb@202:                 generate_c_vardecl_c::private_vt  |
ccb@202:                 generate_c_vardecl_c::eno_vt);
lbessard@70:   vardecl->print(symbol->var_declarations_list);
lbessard@70:   delete vardecl;
lbessard@146: 
lbessard@146:   /* (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@146:   
lbessard@146:   s4o.print(s4o.indent_spaces + "// Control execution\n");
lbessard@146:   s4o.print(s4o.indent_spaces + "if (!EN) {\n");
lbessard@146:   s4o.indent_right();
ccb@202:   s4o.print(s4o.indent_spaces + "if (__ENO != NULL) {\n");
lbessard@146:   s4o.indent_right();
ccb@202:   s4o.print(s4o.indent_spaces + "*__ENO = __BOOL_LITERAL(FALSE);\n");
lbessard@146:   s4o.indent_left();
lbessard@146:   s4o.print(s4o.indent_spaces + "}\n");
lbessard@146:   s4o.print(s4o.indent_spaces + "return ");
lbessard@146:   symbol->derived_function_name->accept(*this);
lbessard@146:   s4o.print(";\n");
lbessard@146:   s4o.indent_left();
lbessard@146:   s4o.print(s4o.indent_spaces + "}\n");
ccb@202: 
lbessard@70:   /* (C) Function body */
laurent@217:   generate_c_SFC_IL_ST_c generate_c_code(&s4o, symbol->derived_function_name, 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,
ccb@202:                 generate_c_vardecl_c::output_vt   |
ccb@202:                 generate_c_vardecl_c::inoutput_vt |
ccb@202:                 generate_c_vardecl_c::eno_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:   /* (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,
ccb@202:                                      generate_c_vardecl_c::local_vf,
ccb@202:                                      generate_c_vardecl_c::input_vt    |
ccb@202:                                      generate_c_vardecl_c::output_vt   |
ccb@202:                                      generate_c_vardecl_c::inoutput_vt |
ccb@202:                                      generate_c_vardecl_c::en_vt       |
ccb@202:                                      generate_c_vardecl_c::eno_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,
ccb@202:                                      generate_c_vardecl_c::local_vf,
ccb@202:                                      generate_c_vardecl_c::temp_vt    |
ccb@202:                                      generate_c_vardecl_c::private_vt |
ccb@202:                                      generate_c_vardecl_c::located_vt |
ccb@202:                                      generate_c_vardecl_c::external_vt);
lbessard@70:   vardecl->print(symbol->var_declarations);
lbessard@70:   delete vardecl;
lbessard@146:   
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: 
laurent@217:   /* (A.6) Function Block inline function declaration for function invocation */
laurent@217:   generate_c_inlinefcall_c inline_decl(&s4o, symbol->fblock_name, symbol, FB_FUNCTION_PARAM"->");
laurent@217:   symbol->fblock_body->accept(inline_decl);
laurent@217: 
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);
laurent@221:   s4o.print(", BOOL retain) {\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,
ccb@202:                                      generate_c_vardecl_c::constructorinit_vf,
ccb@202:                                      generate_c_vardecl_c::input_vt    |
ccb@202:                                      generate_c_vardecl_c::output_vt   |
ccb@202:                                      generate_c_vardecl_c::inoutput_vt |
ccb@202:                                      generate_c_vardecl_c::private_vt  |
ccb@202:                                      generate_c_vardecl_c::located_vt  |
ccb@202:                                      generate_c_vardecl_c::external_vt |
ccb@202:                                      generate_c_vardecl_c::en_vt       |
ccb@202:                                      generate_c_vardecl_c::eno_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@146:   s4o.print(s4o.indent_spaces + "// Control execution\n");
lbessard@146:   s4o.print(s4o.indent_spaces + "if (!");
laurent@217:   s4o.print(GET_VAR);
laurent@217:   s4o.print("(");
lbessard@146:   s4o.print(FB_FUNCTION_PARAM);
laurent@217:   s4o.print("->EN)) {\n");
lbessard@146:   s4o.indent_right();
lbessard@146:   s4o.print(s4o.indent_spaces);
laurent@217:   s4o.print(SET_VAR);
laurent@217:   s4o.print("(");
lbessard@146:   s4o.print(FB_FUNCTION_PARAM);
laurent@217:   s4o.print("->ENO,__BOOL_LITERAL(FALSE));\n");
lbessard@146:   s4o.print(s4o.indent_spaces + "return;\n");
lbessard@146:   s4o.indent_left();
lbessard@146:   s4o.print(s4o.indent_spaces + "}\n");
lbessard@146:   s4o.print(s4o.indent_spaces + "else {\n");
lbessard@146:   s4o.indent_right();
lbessard@146:   s4o.print(s4o.indent_spaces);
laurent@217:   s4o.print(SET_VAR);
laurent@217:   s4o.print("(");
lbessard@146:   s4o.print(FB_FUNCTION_PARAM);
laurent@217:   s4o.print("->ENO,__BOOL_LITERAL(TRUE));\n");
lbessard@146:   s4o.indent_left();
lbessard@146:   s4o.print(s4o.indent_spaces + "}\n");
lbessard@146: 
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,
ccb@202:                                      generate_c_vardecl_c::init_vf,
ccb@202:                                      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 */
laurent@217:   generate_c_SFC_IL_ST_c generate_c_code(&s4o, symbol->fblock_name, 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:   /* (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,
ccb@202:                                      generate_c_vardecl_c::local_vf,
ccb@202:                                      generate_c_vardecl_c::input_vt  |
ccb@202:                                      generate_c_vardecl_c::output_vt |
ccb@202:                                      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,
ccb@202:                 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: 
laurent@217:   /* (A.6) Function Block inline function declaration for function invocation */
laurent@217:   generate_c_inlinefcall_c inline_decl(&s4o, symbol->program_type_name, symbol, FB_FUNCTION_PARAM"->");
laurent@217:   symbol->function_block_body->accept(inline_decl);
laurent@217: 
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);
laurent@221:   s4o.print(", BOOL retain) {\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,
ccb@202:                                      generate_c_vardecl_c::constructorinit_vf,
ccb@202:                                      generate_c_vardecl_c::input_vt    |
ccb@202:                                      generate_c_vardecl_c::output_vt   |
ccb@202:                                      generate_c_vardecl_c::inoutput_vt |
ccb@202:                                      generate_c_vardecl_c::private_vt  |
ccb@202:                                      generate_c_vardecl_c::located_vt  |
ccb@202:                                      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,
ccb@202:                                      generate_c_vardecl_c::init_vf,
ccb@202:                                      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 */
laurent@217:   generate_c_SFC_IL_ST_c generate_c_code(&s4o, symbol->program_type_name, 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,
ccb@202:                                      generate_c_vardecl_c::local_vf,
ccb@202:                                      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,
ccb@202:                                      generate_c_vardecl_c::constructorinit_vf,
ccb@202:                                      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);
laurent@210:   s4o.print("(unsigned long 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);
laurent@210:       s4o.print("(unsigned long 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);
laurent@210:       s4o.print("(unsigned long 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@184:     symbol_c *current_task_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) {
ccb@202:       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@184:       current_task_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: 
laurent@221:     /* the qualifier of variables that need to be processed... */
laurent@221:     static const unsigned int none_vq        = 0x0000;
laurent@221:     static const unsigned int constant_vq    = 0x0001;  // CONSTANT
laurent@221:     static const unsigned int retain_vq      = 0x0002;  // RETAIN
laurent@221:     static const unsigned int non_retain_vq  = 0x0004;  // NON_RETAIN
laurent@221: 
laurent@221:     /* variable used to store the qualifier of program currently being processed... */
laurent@221:     unsigned int current_varqualifier;
laurent@221: 
laurent@221:     void *print_retain(void) {
laurent@221: 	  s4o.print(",");
laurent@221:       switch (current_varqualifier) {
laurent@221: 		case retain_vq:
laurent@221:           s4o.print("1");
laurent@221:           break;
laurent@221:         case non_retain_vq:
laurent@221:           s4o.print("0");
laurent@221:           break;
laurent@221: 		default:
laurent@221: 		  s4o.print("retain");
laurent@221: 		  break;
laurent@221:       }
laurent@221:       return NULL;
laurent@221:     }
laurent@221: 
laurent@221:     /******************************************/
laurent@221:     /* B 1.4.3 - Declaration & Initialisation */
laurent@221:     /******************************************/
laurent@221: 
laurent@221:     void *visit(constant_option_c *symbol) {
laurent@221:       current_varqualifier = constant_vq;
laurent@221:       return NULL;
laurent@221:     }
laurent@221: 
laurent@221:     void *visit(retain_option_c *symbol) {
laurent@221:       current_varqualifier = retain_vq;
laurent@221:       return NULL;
laurent@221:     }
laurent@221: 
laurent@221:     void *visit(non_retain_option_c *symbol) {
laurent@221:       current_varqualifier = non_retain_vq;
laurent@221:       return NULL;
laurent@221:     }
laurent@221: 
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) {
ccb@202:       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");
laurent@217: 
laurent@217:       s4o.print("#include \"accessor.h\"\n\n");
laurent@217: 
lbessard@70:       /* (A.2) Global variables... */
lbessard@70:       if (current_global_vars != NULL) {
lbessard@70:         vardecl = new generate_c_vardecl_c(&s4o,
ccb@202:                                            generate_c_vardecl_c::local_vf,
ccb@202:                                            generate_c_vardecl_c::global_vt,
ccb@202:                                            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@184:       wanted_declaretype = declare_dt;
lbessard@184:       
lbessard@70:       /* (A.4) Resource programs declaration... */
lbessard@184:       symbol->task_configuration_list->accept(*this);
lbessard@184:       
lbessard@184:       /* (A.5) Resource programs declaration... */
lbessard@70:       symbol->program_configuration_list->accept(*this);
lbessard@184:       
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();
laurent@221:       s4o.print(s4o.indent_spaces);
laurent@221:       s4o.print("BOOL retain = 0;\n");
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,
ccb@202:                                            generate_c_vardecl_c::constructorinit_vf,
ccb@202:                                            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:       wanted_declaretype = init_dt;
lbessard@184:       
lbessard@184:       /* (B.3) Tasks initialisations... */
lbessard@184:       symbol->task_configuration_list->accept(*this);
lbessard@184:       
lbessard@184:       /* (B.4) Resource programs initialisations... */
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);
laurent@210:       s4o.print("(unsigned long tick) {\n");
lbessard@70:       s4o.indent_right();
lbessard@70:       
lbessard@184:       wanted_declaretype = run_dt;
lbessard@184:       
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:       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@184:       switch (wanted_declaretype) {
lbessard@184:         case declare_dt:
lbessard@70:           s4o.print(s4o.indent_spaces);
lbessard@184:           symbol->program_type_name->accept(*this);
lbessard@184:           s4o.print(" ");
lbessard@184:           current_resource_name->accept(*this);
lbessard@184:           s4o.print("__");
lbessard@184:           symbol->program_name->accept(*this);
lbessard@184:           s4o.print(";\n#define ");
lbessard@184:           symbol->program_name->accept(*this);
lbessard@184:           s4o.print(" ");
lbessard@184:           current_resource_name->accept(*this);
lbessard@184:           s4o.print("__");
lbessard@184:           symbol->program_name->accept(*this);
lbessard@184:           s4o.print("\n");
lbessard@184:           break;
lbessard@184:         case init_dt:
laurent@221:           if (symbol->retain_option != NULL)
laurent@221:         	symbol->retain_option->accept(*this);
lbessard@184:           s4o.print(s4o.indent_spaces);
lbessard@184:           symbol->program_type_name->accept(*this);
lbessard@184:           s4o.print(FB_INIT_SUFFIX);
lbessard@184:           s4o.print("(&");
lbessard@184:           symbol->program_name->accept(*this);
laurent@221:           print_retain();
lbessard@184:           s4o.print(");\n");
lbessard@184:           break;
lbessard@184:         case run_dt:
lbessard@184:           current_program_name = ((identifier_c*)(symbol->program_name))->value;
lbessard@184:           if (symbol->task_name != NULL) {
lbessard@184:             s4o.print(s4o.indent_spaces);
lbessard@184:             s4o.print("if (");
lbessard@184:             symbol->task_name->accept(*this);
lbessard@184:             s4o.print(") {\n");
lbessard@184:             s4o.indent_right(); 
lbessard@184:           }
lbessard@70:         
lbessard@184:           wanted_assigntype = assign_at;
lbessard@184:           if (symbol->prog_conf_elements != NULL)
lbessard@184:             symbol->prog_conf_elements->accept(*this);
lbessard@184:           
lbessard@184:           s4o.print(s4o.indent_spaces);
lbessard@184:           symbol->program_type_name->accept(*this);
lbessard@184:           s4o.print(FB_FUNCTION_SUFFIX);
lbessard@184:           s4o.print("(&");
lbessard@184:           symbol->program_name->accept(*this);
lbessard@184:           s4o.print(");\n");
lbessard@184:           
lbessard@184:           wanted_assigntype = send_at;
lbessard@184:           if (symbol->prog_conf_elements != NULL)
lbessard@184:             symbol->prog_conf_elements->accept(*this);
lbessard@184:           
lbessard@184:           if (symbol->task_name != NULL) {
lbessard@184:             s4o.indent_left();
lbessard@184:             s4o.print(s4o.indent_spaces + "}\n");
lbessard@184:           }
lbessard@184:           break;
lbessard@184:         default:
lbessard@184:           break;
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@184:       current_task_name = symbol->task_name;
lbessard@184:       switch (wanted_declaretype) {
lbessard@184:         case declare_dt:
lbessard@184:           s4o.print(s4o.indent_spaces + "BOOL ");
lbessard@184:           current_task_name->accept(*this);
lbessard@184:           s4o.print(";\n");
lbessard@184:           symbol->task_initialization->accept(*this);
lbessard@184:           break;
lbessard@184:         case init_dt:
lbessard@184:           s4o.print(s4o.indent_spaces);
lbessard@184:           current_task_name->accept(*this);
lbessard@184:           s4o.print(" = __BOOL_LITERAL(FALSE);\n");
lbessard@184:           symbol->task_initialization->accept(*this);
lbessard@184:           break;
lbessard@184:         case run_dt:
lbessard@184:           symbol->task_initialization->accept(*this);
lbessard@184:           break;
lbessard@184:         default:
lbessard@184:           break;
lbessard@184:       }
lbessard@184:       current_task_name = NULL;
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@184:       switch (wanted_declaretype) {
lbessard@184:         case declare_dt:
lbessard@184:           if (symbol->single_data_source != NULL) {
lbessard@184:             s4o.print(s4o.indent_spaces + "R_TRIG ");
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print("_R_TRIG;\n");
lbessard@184:           }
lbessard@184:           break;
lbessard@184:         case init_dt:
lbessard@184:           if (symbol->single_data_source != NULL) {
lbessard@184:             s4o.print(s4o.indent_spaces + "R_TRIG");
lbessard@184:             s4o.print(FB_INIT_SUFFIX);
lbessard@184:             s4o.print("(&");
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print("_R_TRIG);\n");
lbessard@184:           }
lbessard@184:           break;
lbessard@184:         case run_dt:
lbessard@184:           if (symbol->single_data_source != NULL) {
lbessard@184:             symbol_c *config_var_decl = NULL;
lbessard@184:             symbol_c *res_var_decl = NULL;
lbessard@184:             symbol_c *current_var_reference = ((global_var_reference_c *)(symbol->single_data_source))->global_var_name;
lbessard@184:             res_var_decl = search_resource_instance->get_decl(current_var_reference);
lbessard@184:             if (res_var_decl == NULL) {
lbessard@184:               config_var_decl = search_config_instance->get_decl(current_var_reference);
lbessard@184:               if (config_var_decl == NULL)
lbessard@184:                 ERROR;
lbessard@184:               s4o.print(s4o.indent_spaces + "{extern ");
lbessard@184:               config_var_decl->accept(*this);
lbessard@184:               s4o.print(" *");
lbessard@184:               symbol->single_data_source->accept(*this);
lbessard@184:               s4o.print("; ");
lbessard@184:             }
lbessard@184:             else
lbessard@184:               s4o.print(s4o.indent_spaces);
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print("_R_TRIG.CLK = *");
lbessard@184:             symbol->single_data_source->accept(*this);
lbessard@184:             s4o.print(";");
lbessard@184:             if (config_var_decl != NULL)
lbessard@184:               s4o.print("}");
lbessard@184:             s4o.print("\n");
lbessard@184:             s4o.print(s4o.indent_spaces + "R_TRIG");
lbessard@184:             s4o.print(FB_FUNCTION_SUFFIX);
lbessard@184:             s4o.print("(&");
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print("_R_TRIG);\n");
lbessard@184:             s4o.print(s4o.indent_spaces);
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print(" = ");
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print("_R_TRIG.Q");
lbessard@184:           }
lbessard@184:           else {
lbessard@184:             s4o.print(s4o.indent_spaces);
lbessard@184:             current_task_name->accept(*this);
lbessard@184:             s4o.print(" = ");
lbessard@184:             if (symbol->interval_data_source != NULL) {
lbessard@184:               calculate_time_c calculate_time;
lbessard@184:               symbol->interval_data_source->accept(calculate_time);
lbessard@184:               unsigned long time = calculate_time.get_time();
lbessard@184:               if (time != 0) {
lbessard@184:                 s4o.print("!(tick % ");
lbessard@184:                 s4o.print_integer((int)(time / common_ticktime));
lbessard@184:                 s4o.print(")");
lbessard@184:               }
lbessard@184:               else
lbessard@184:                 s4o.print("1");
lbessard@184:             }
lbessard@184:             else 
lbessard@184:               s4o.print("1");
lbessard@184:           }
lbessard@184:           s4o.print(";\n");
lbessard@184:           break;
lbessard@184:         default:
lbessard@184:           break;
lbessard@70:       }
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);
ccb@202:         s4o.print(" *");
lbessard@70:         symbol->prog_data_source->accept(*this);
lbessard@70:         s4o.print("; ");
ccb@202:         s4o.printupper(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 + "{extern ");
lbessard@70:         var_decl->accept(*this);
ccb@202:         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(" = ");
ccb@202:         s4o.printupper(current_program_name);
lbessard@70:         s4o.print(".");
lbessard@70:         symbol->symbolic_variable->accept(*this);
ccb@202:         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) {
laurent@217:       pous_incl_s4o.print("#ifndef __POUS_H\n#define __POUS_H\n\n#include \"accessor.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);
laurent@210:       common_ticktime = calculate_common_ticktime.get_common_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:         
laurent@210:       config_s4o.print("unsigned long long common_ticktime__ = ");
laurent@210:       config_s4o.print_long_long_integer(common_ticktime);
laurent@210:       config_s4o.print("; /*ns*/\n");
laurent@210:       config_s4o.print("unsigned long greatest_tick_count__ = ");
laurent@210:       config_s4o.print_long_integer(calculate_common_ticktime.get_greatest_tick_count());
laurent@210:       config_s4o.print("; /*tick*/\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) {
ccb@202:       symbol->resource_name->accept(*this);
ccb@202:       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);
ccb@202:       symbol->accept(generate_c_resources);
ccb@202:       return NULL;
lbessard@70:     }
lbessard@70: 
lbessard@70:     void *visit(single_resource_declaration_c *symbol) {
ccb@202:       stage4out_c resources_s4o(current_builddir, "RESOURCE", "c");
lbessard@70:       generate_c_resources_c generate_c_resources(&resources_s4o, current_configuration, symbol, common_ticktime);
ccb@202:       symbol->accept(generate_c_resources);
ccb@202:       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: