--- a/stage4/generate_cc/generate_cc.cc Tue Oct 23 10:35:58 2007 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1573 +0,0 @@
-/*
- * (c) 2003 Mario de Sousa
- *
- * Offered to the public under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- * Public License for more details.
- *
- * This code is made available on the understanding that it will not be
- * used in safety-critical situations without a full and competent review.
- */
-
-/*
- * An IEC 61131-3 IL and ST compiler.
- *
- * Based on the
- * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
- *
- */
-
-
-/*
- * This is one of the versions available for the 4th stage.
- *
- * This 4th stage generates a c++ source program equivalent
- * to the IL and ST code.
- */
-
-
-
-
-
-
-// #include <stdio.h> /* required for NULL */
-#include <string>
-#include <iostream>
-#include <sstream>
-#include <typeinfo>
-
-#include "../../util/symtable.hh"
-#include "../../util/dsymtable.hh"
-#include "../../absyntax/visitor.hh"
-
-#include "../stage4.hh"
-
-
-
-
-
-
-
-
-//#define DEBUG
-#ifdef DEBUG
-#define TRACE(classname) printf("\n____%s____\n",classname);
-#else
-#define TRACE(classname)
-#endif
-
-
-
-#define ERROR error_exit(__FILE__,__LINE__)
-/* function defined in main.cc */
-extern void error_exit(const char *file_name, int line_no);
-
-
-
-
-
-
-
-/* A symbol table with all globally declared functions... */
-function_declaration_c null_symbol1(NULL,NULL,NULL,NULL);
-dsymtable_c<function_declaration_c *, &null_symbol1> function_symtable;
-
-/* A symbol table with all globally declared functions block types... */
-function_block_declaration_c null_symbol2(NULL,NULL,NULL);
-symtable_c<function_block_declaration_c *, &null_symbol2> function_block_type_symtable;
-
-/* A symbol table with all globally declared program types... */
-program_declaration_c null_symbol3(NULL,NULL,NULL);
-symtable_c<program_declaration_c *, &null_symbol3> program_type_symtable;
-
-/* A symbol table with all user declared type definitions... */
-/* Note that function block types and program types have their
- * own symbol tables, so do not get placed in this symbol table!
- */
-symbol_c null_symbol4;
-symtable_c<symbol_c *, &null_symbol4> type_symtable;
-
-
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-
-/* returns 0 if the names are equal!! */
-/* NOTE: it must ignore case!! */
-static int compare_identifiers(symbol_c *ident1, symbol_c *ident2) {
-
- token_c *name1 = dynamic_cast<token_c *>(ident1);
- token_c *name2 = dynamic_cast<token_c *>(ident2);
-
- if ((name1 == NULL) || (name2 == NULL))
- /* invalid identifiers... */
- return -1;
-
- if (strcasecmp(name1->value, name2->value) == 0)
- return 0;
-
- /* identifiers do not match! */
- return 1;
-}
-
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-/* Unlike Programs and Configurations which get mapped onto C++ classes,
- * Function Blocks are mapped onto a C structure containing the variables, and
- * a C function containing the code in the FB's body. This is to allow direct allocation
- * of a FB variable (which is really an instance of the C data structure) to
- * a member of a union variable (note that classes with constructors cannot
- * be mebers of a union), which is done in IL when loading a FB onto IL's
- * default variable.
- *
- * So as not to clash the names of the C data structure and the C function,
- * the C structure is given a name identical to that of the FB name, whereas
- * the name of the function is the FB name with a constant string appended.
- * The value of that constant string which is appended is defined in the following
- * constant.
- * In order not to clash with any variable in the IL and ST source codem the
- * following constant should contain a double underscore, which is not allowed
- * in IL and ST.
- *
- * e.g.: FUNTION_BLOCK TEST
- * is mapped onto a TEST data structure, and a TEST_body__ function.
- */
-
-#define FB_FUNCTION_SUFFIX "_body__"
-
-/* Idem as body, but for initializer FB function */
-#define FB_INIT_SUFFIX "_init__"
-
-/* Idem as body, but for run CONFIG and RESOURCE function */
-#define FB_RUN_SUFFIX "_run__"
-
-/* The FB body function is passed as the only parameter a pointer to the FB data
- * structure instance. The name of this parameter is given by the following constant.
- * In order not to clash with any variable in the IL and ST source codem the
- * following constant should contain a double underscore, which is not allowed
- * in IL and ST.
- *
- * e.g.: the body of FUNTION_BLOCK TEST
- * is mapped onto the C function
- * TEST_body__(TEST *data__)
- */
-
-#define FB_FUNCTION_PARAM "data__"
-
-
-#define SFC_STEP_ACTION_PREFIX "__SFC_"
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-
-#include "spec_init_separator.cc"
-#include "function_param_iterator.cc"
-#include "function_call_iterator.cc"
-#include "function_call_param_iterator.cc"
-#include "type_initial_value.cc"
-#include "search_fb_instance_decl.cc"
-#include "search_base_type.cc"
-#include "search_var_instance_decl.cc"
-#include "decompose_var_instance_name.cc"
-#include "search_varfb_instance_type.cc"
-#include "search_constant_type.cc"
-#include "search_expression_type.cc"
-
-#include "generate_cc_base.cc"
-#include "generate_cc_typedecl.cc"
-#include "generate_cc_sfcdecl.cc"
-#include "generate_cc_vardecl.cc"
-#include "generate_cc_configbody.cc"
-#include "generate_location_list.cc"
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-/* Generate a name for a temporary variable.
- * Each new name generated is appended a different number,
- * starting off from 0.
- * After calling reset(), the names will start off again from 0.
- */
-#define VAR_LEADER "__"
-#define TEMP_VAR VAR_LEADER "TMP_"
-#define SOURCE_VAR VAR_LEADER "SRC_"
-
-#include "generate_cc_tempvardecl.cc"
-
-#include "generate_cc_st.cc"
-#include "generate_cc_il.cc"
-
-#include "generate_cc.hh"
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-#define MILLISECOND 1000000
-#define SECOND 1000 * MILLISECOND
-
-/* A helper class that knows how to generate code for both the IL and ST languages... */
-class calculate_time_c: public iterator_visitor_c {
- private:
- unsigned long time;
- float current_value;
-
- public:
- calculate_time_c(void){time = 0;};
-
- unsigned long get_time(void) {return time;};
-
- void *get_integer_value(token_c *token) {
- std::string str = "";
- for (unsigned int i = 0; i < strlen(token->value); i++)
- if (token->value[i] != '_')
- str += token->value[i];
- current_value = atof(str.c_str());
- return NULL;
- }
-
- void *get_float_value(token_c *token) {
- current_value = atof(token->value);
- return NULL;
- }
-
-/******************************/
-/* B 1.2.1 - Numeric Literals */
-/******************************/
-
- void *visit(integer_c *symbol) {return get_integer_value(symbol);}
-
-/************************/
-/* B 1.2.3.1 - Duration */
-/************************/
-
- /* SYM_REF2(duration_c, neg, interval) */
- void *visit(duration_c *symbol) {
- if (symbol->neg != NULL)
- ERROR;
- symbol->interval->accept(*this);
- return NULL;
- }
-
- /* SYM_TOKEN(fixed_point_c) */
- void *visit(fixed_point_c *symbol) {return get_float_value(symbol);}
-
- /* SYM_REF2(days_c, days, hours) */
- void *visit(days_c *symbol) {
- if (symbol->hours)
- symbol->hours->accept(*this);
- symbol->days->accept(*this);
- time += (unsigned long)(current_value * 24 * 3600 * SECOND);
- return NULL;
- }
-
- /* SYM_REF2(hours_c, hours, minutes) */
- void *visit(hours_c *symbol) {
- if (symbol->minutes)
- symbol->minutes->accept(*this);
- symbol->hours->accept(*this);
- time += (unsigned long)(current_value * 3600 * SECOND);
- return NULL;
- }
-
- /* SYM_REF2(minutes_c, minutes, seconds) */
- void *visit(minutes_c *symbol) {
- if (symbol->seconds)
- symbol->seconds->accept(*this);
- symbol->minutes->accept(*this);
- time += (unsigned long)(current_value * 60 * SECOND);
- return NULL;
- }
-
- /* SYM_REF2(seconds_c, seconds, milliseconds) */
- void *visit(seconds_c *symbol) {
- if (symbol->milliseconds)
- symbol->milliseconds->accept(*this);
- symbol->seconds->accept(*this);
- time += (unsigned long)(current_value * SECOND);
- return NULL;
- }
-
- /* SYM_REF2(milliseconds_c, milliseconds, unused) */
- void *visit(milliseconds_c *symbol) {
- symbol->milliseconds->accept(*this);
- time += (unsigned long)(current_value * MILLISECOND);
- return NULL;
- }
-};
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-class calculate_common_ticktime_c: public iterator_visitor_c {
- private:
- unsigned long common_ticktime;
-
- public:
- calculate_common_ticktime_c(void){common_ticktime = 0;}
-
- unsigned long euclide(unsigned long a, unsigned long b) {
- unsigned long c = a % b;
- if (c == 0)
- return b;
- else
- return euclide(b, c);
- }
-
- void update_ticktime(unsigned long time) {
- if (common_ticktime == 0)
- common_ticktime = time;
- else if (time > common_ticktime)
- common_ticktime = euclide(time, common_ticktime);
- else
- common_ticktime = euclide(common_ticktime, time);
- }
-
- unsigned long get_ticktime(void) {
- return common_ticktime;
- }
-
-/* TASK task_name task_initialization */
-//SYM_REF2(task_configuration_c, task_name, task_initialization)
- void *visit(task_initialization_c *symbol) {
- calculate_time_c calculate_time;
- unsigned long time = 0;
- if (symbol->interval_data_source != NULL) {
- symbol->interval_data_source->accept(calculate_time);
- time = calculate_time.get_time();
- }
- if (time > 0)
- update_ticktime(time);
- return NULL;
- }
-};
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-/* A helper class that knows how to generate code for both the IL and ST languages... */
-class generate_cc_SFC_IL_ST_c: public null_visitor_c {
- private:
- stage4out_c *s4o_ptr;
- symbol_c *scope;
- const char *variable_prefix;
-
- public:
- generate_cc_SFC_IL_ST_c(stage4out_c *s4o_ptr, symbol_c *scope, const char *variable_prefix = NULL);
- /*********************************************/
- /* B.1.6 Sequential function chart elements */
- /*********************************************/
-
- /*| sequential_function_chart sfc_network*/
- void *visit(sequential_function_chart_c * symbol);
-
- /****************************************/
- /* B.2 - Language IL (Instruction List) */
- /****************************************/
-
- /***********************************/
- /* B 2.1 Instructions and Operands */
- /***********************************/
- /*| instruction_list il_instruction */
- void *visit(instruction_list_c *symbol);
-
- /* Remainder implemented in generate_cc_il_c... */
-
- /***************************************/
- /* B.3 - Language ST (Structured Text) */
- /***************************************/
- /***********************/
- /* B 3.1 - Expressions */
- /***********************/
- /* Implemented in generate_cc_st_c */
-
- /********************/
- /* B 3.2 Statements */
- /********************/
- void *visit(statement_list_c *symbol);
-
-/* Remainder implemented in generate_cc_st_c... */
-};
-
-#include "generate_cc_sfc.cc"
-
-generate_cc_SFC_IL_ST_c::generate_cc_SFC_IL_ST_c(stage4out_c *s4o_ptr, symbol_c *scope, const char *variable_prefix) {
- if (NULL == scope) ERROR;
- this->s4o_ptr = s4o_ptr;
- this->scope = scope;
- this->variable_prefix = variable_prefix;
-}
-
-void *generate_cc_SFC_IL_ST_c::visit(sequential_function_chart_c * symbol) {
- generate_cc_sfc_c generate_cc_sfc(s4o_ptr, scope, variable_prefix);
- generate_cc_sfc.generate(symbol);
- return NULL;
-}
-
-void *generate_cc_SFC_IL_ST_c::visit(instruction_list_c *symbol) {
- generate_cc_il_c generate_cc_il(s4o_ptr, scope, variable_prefix);
- generate_cc_il.generate(symbol);
- return NULL;
-}
-
-void *generate_cc_SFC_IL_ST_c::visit(statement_list_c *symbol) {
- generate_cc_st_c generate_cc_st(s4o_ptr, scope, variable_prefix);
- generate_cc_st.generate(symbol);
- return NULL;
-}
-
-
-
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-
-class generate_cc_pous_c: public generate_cc_typedecl_c {
-
- public:
- generate_cc_pous_c(stage4out_c *s4o_ptr)
- : generate_cc_typedecl_c(s4o_ptr) {};
- virtual ~generate_cc_pous_c(void) {}
-
-
- public:
-
-/*************************/
-/* B.1 - Common elements */
-/*************************/
-/*******************************************/
-/* B 1.1 - Letters, digits and identifiers */
-/*******************************************/
- /* done in base class(es) */
-
-/*********************/
-/* B 1.2 - Constants */
-/*********************/
- /* originally empty... */
-
-/******************************/
-/* B 1.2.1 - Numeric Literals */
-/******************************/
- /* done in base class(es) */
-
-/*******************************/
-/* B.1.2.2 Character Strings */
-/*******************************/
- /* done in base class(es) */
-
-/***************************/
-/* B 1.2.3 - Time Literals */
-/***************************/
-/************************/
-/* B 1.2.3.1 - Duration */
-/************************/
- /* done in base class(es) */
-
-/************************************/
-/* B 1.2.3.2 - Time of day and Date */
-/************************************/
- /* done in base class(es) */
-
-/**********************/
-/* B.1.3 - Data types */
-/**********************/
-/***********************************/
-/* B 1.3.1 - Elementary Data Types */
-/***********************************/
- /* done in base class(es) */
-
-/********************************/
-/* B.1.3.2 - Generic data types */
-/********************************/
- /* originally empty... */
-
-/********************************/
-/* B 1.3.3 - Derived data types */
-/********************************/
- /* done in base class(es) */
-
-/*********************/
-/* B 1.4 - Variables */
-/*********************/
- /* done in base class(es) */
-
-/********************************************/
-/* B.1.4.1 Directly Represented Variables */
-/********************************************/
- /* done in base class(es) */
-
-/*************************************/
-/* B.1.4.2 Multi-element Variables */
-/*************************************/
- /* done in base class(es) */
-
-/******************************************/
-/* B 1.4.3 - Declaration & Initialisation */
-/******************************************/
- /* done in base class(es) */
-
-/**************************************/
-/* B.1.5 - Program organization units */
-/**************************************/
-/***********************/
-/* B 1.5.1 - Functions */
-/***********************/
-
-public:
-/* FUNCTION derived_function_name ':' elementary_type_name io_OR_function_var_declarations_list function_body END_FUNCTION */
-/* | FUNCTION derived_function_name ':' derived_type_name io_OR_function_var_declarations_list function_body END_FUNCTION */
-void *visit(function_declaration_c *symbol) {
- generate_cc_vardecl_c *vardecl;
- TRACE("function_declaration_c");
-
- /* start off by adding this declaration to the global
- * function declaration symbol table...
- */
- function_symtable.insert(symbol->derived_function_name, symbol);
-
- /* (A) Function declaration... */
- /* (A.1) Function return type */
- s4o.print("// FUNCTION\n");
- symbol->type_name->accept(*this); /* return type */
- s4o.print(" ");
- /* (A.2) Function name */
- symbol->derived_function_name->accept(*this);
- s4o.print("(");
-
- /* (A.3) Function parameters */
- s4o.indent_right();
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::finterface_vf,
- generate_cc_vardecl_c::input_vt |
- generate_cc_vardecl_c::output_vt |
- generate_cc_vardecl_c::inoutput_vt);
- vardecl->print(symbol->var_declarations_list);
- delete vardecl;
- s4o.indent_left();
-
- s4o.print(")\n" + s4o.indent_spaces + "{\n");
-
- /* (B) Function local variable declaration */
- /* (B.1) Variables declared in ST source code */
- s4o.indent_right();
- vardecl = new generate_cc_vardecl_c(&s4o, generate_cc_vardecl_c::localinit_vf, generate_cc_vardecl_c::private_vt);
- vardecl->print(symbol->var_declarations_list);
- delete vardecl;
-
- /* (B.2) Temporary variable for function's return value */
- /* It will have the same name as the function itself! */
- s4o.print(s4o.indent_spaces);
- symbol->type_name->accept(*this); /* return type */
- s4o.print(" ");
- symbol->derived_function_name->accept(*this);
- s4o.print(" = ");
- {
- /* get the default value of this variable's type */
- symbol_c *default_value = (symbol_c *)symbol->type_name->accept(*type_initial_value_c::instance());
- if (default_value == NULL) ERROR;
- default_value->accept(*this);
- }
- s4o.print(";\n\n");
-
- /* (C) Function body */
- generate_cc_SFC_IL_ST_c generate_cc_code(&s4o, symbol);
- symbol->function_body->accept(generate_cc_code);
- s4o.print(s4o.indent_spaces + "return ");
- symbol->derived_function_name->accept(*this);
- s4o.print(";\n");
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "}\n\n\n");
-
- return NULL;
-}
-
-
-/* The remaining var_declarations_list_c, function_var_decls_c
- * and var2_init_decl_list_c are handled in the generate_cc_vardecl_c class
- */
-
-
-/*****************************/
-/* B 1.5.2 - Function Blocks */
-/*****************************/
-public:
-/* FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */
-//SYM_REF4(function_block_declaration_c, fblock_name, var_declarations, fblock_body, unused)
-void *visit(function_block_declaration_c *symbol) {
- generate_cc_vardecl_c *vardecl;
- generate_cc_sfcdecl_c *sfcdecl;
- TRACE("function_block_declaration_c");
-
- /* start off by adding this declaration to the global
- * function block declaration symbol table...
- */
- function_block_type_symtable.insert(symbol->fblock_name, symbol);
-
- /* (A) Function Block data structure declaration... */
- /* (A.1) Data structure declaration */
- s4o.print("// FUNCTION_BLOCK ");
- symbol->fblock_name->accept(*this);
- s4o.print("\n// Data part\n");
- s4o.print("typedef struct {\n");
- s4o.indent_right();
- /* (A.2) Public variables: i.e. the function parameters... */
- s4o.print(s4o.indent_spaces + "// FB Interface - IN, OUT, IN_OUT variables\n");
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::local_vf,
- generate_cc_vardecl_c::input_vt |
- generate_cc_vardecl_c::output_vt |
- generate_cc_vardecl_c::inoutput_vt);
- vardecl->print(symbol->var_declarations);
- delete vardecl;
- s4o.print("\n");
- /* (A.3) Private internal variables */
- s4o.print(s4o.indent_spaces + "// FB private variables - TEMP, private and located variables\n");
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::local_vf,
- generate_cc_vardecl_c::temp_vt |
- generate_cc_vardecl_c::private_vt |
- generate_cc_vardecl_c::located_vt |
- generate_cc_vardecl_c::external_vt);
- vardecl->print(symbol->var_declarations);
- delete vardecl;
- /* (A.4) Generate private internal variables for SFC */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::sfcdecl_sd);
- sfcdecl->print(symbol->fblock_body);
- delete sfcdecl;
- s4o.print("\n");
-
- /* (A.5) Function Block data structure type name. */
- s4o.indent_left();
- s4o.print("} ");
- symbol->fblock_name->accept(*this);
- s4o.print(";\n\n");
-
-
- /* (B) Constructor */
- /* (B.1) Constructor name... */
- s4o.print(s4o.indent_spaces + "void ");
- symbol->fblock_name->accept(*this);
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(");
-
- /* first and only parameter is a pointer to the data */
- symbol->fblock_name->accept(*this);
- s4o.print(" *");
- s4o.print(FB_FUNCTION_PARAM);
- s4o.print(") {\n");
- s4o.indent_right();
-
- /* (B.2) Member initializations... */
- s4o.print(s4o.indent_spaces);
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::constructorinit_vf,
- generate_cc_vardecl_c::input_vt |
- generate_cc_vardecl_c::output_vt |
- generate_cc_vardecl_c::inoutput_vt |
- generate_cc_vardecl_c::private_vt |
- generate_cc_vardecl_c::located_vt |
- generate_cc_vardecl_c::external_vt);
- vardecl->print(symbol->var_declarations, NULL, FB_FUNCTION_PARAM"->");
- delete vardecl;
- s4o.print("\n");
- /* (B.3) Generate private internal variables for SFC */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::sfcinit_sd);
- sfcdecl->print(symbol->fblock_body, FB_FUNCTION_PARAM"->");
- delete sfcdecl;
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "}\n\n");
-
-
- /* (C) Function with FB body */
- /* (C.1) Step definitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::stepdef_sd);
- sfcdecl->print(symbol->fblock_body);
- delete sfcdecl;
-
- /* (C.2) Action definitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::actiondef_sd);
- sfcdecl->print(symbol->fblock_body);
- delete sfcdecl;
-
- /* (C.3) Function declaration */
- s4o.print("// Code part\n");
- /* function interface */
- s4o.print("void ");
- symbol->fblock_name->accept(*this);
- s4o.print(FB_FUNCTION_SUFFIX);
- s4o.print("(");
- /* first and only parameter is a pointer to the data */
- symbol->fblock_name->accept(*this);
- s4o.print(" *");
- s4o.print(FB_FUNCTION_PARAM);
- s4o.print(") {\n");
- s4o.indent_right();
-
- /* (C.4) Initialize TEMP variables */
- /* function body */
- s4o.print(s4o.indent_spaces + "// Initialise TEMP variables\n");
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::init_vf,
- generate_cc_vardecl_c::temp_vt);
- vardecl->print(symbol->var_declarations, NULL, FB_FUNCTION_PARAM"->");
- delete vardecl;
- s4o.print("\n");
-
- /* (C.5) Function code */
- generate_cc_SFC_IL_ST_c generate_cc_code(&s4o, symbol, FB_FUNCTION_PARAM"->");
- symbol->fblock_body->accept(generate_cc_code);
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "} // ");
- symbol->fblock_name->accept(*this);
- s4o.print(FB_FUNCTION_SUFFIX);
- s4o.print(s4o.indent_spaces + "() \n\n");
-
- /* (C.6) Step undefinitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::stepundef_sd);
- sfcdecl->print(symbol->fblock_body);
- delete sfcdecl;
-
- /* (C.7) Action undefinitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::actionundef_sd);
- sfcdecl->print(symbol->fblock_body);
- delete sfcdecl;
-
- s4o.indent_left();
- s4o.print("\n\n\n\n");
-
- return NULL;
-}
-
-
-/* The remaining temp_var_decls_c, temp_var_decls_list_c
- * and non_retentive_var_decls_c are handled in the generate_cc_vardecl_c class
- */
-
-
-/**********************/
-/* B 1.5.3 - Programs */
-/**********************/
-
-
-
-public:
-/* PROGRAM program_type_name program_var_declarations_list function_block_body END_PROGRAM */
-//SYM_REF4(program_declaration_c, program_type_name, var_declarations, function_block_body, unused)
-void *visit(program_declaration_c *symbol) {
- generate_cc_vardecl_c *vardecl;
- generate_cc_sfcdecl_c *sfcdecl;
- TRACE("program_declaration_c");
-
- /* start off by adding this declaration to the global
- * program declaration symbol table...
- */
- program_type_symtable.insert(symbol->program_type_name, symbol);
-
- /* (A) Program data structure declaration... */
- /* (A.1) Data structure declaration */
- s4o.print("// PROGRAM ");
- symbol->program_type_name->accept(*this);
- s4o.print("\n// Data part\n");
- s4o.print("typedef struct {\n");
- s4o.indent_right();
-
- /* (A.2) Public variables: i.e. the program parameters... */
- s4o.print(s4o.indent_spaces + "// PROGRAM Interface - IN, OUT, IN_OUT variables\n");
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::local_vf,
- generate_cc_vardecl_c::input_vt |
- generate_cc_vardecl_c::output_vt |
- generate_cc_vardecl_c::inoutput_vt);
- vardecl->print(symbol->var_declarations);
- delete vardecl;
- s4o.print("\n");
- /* (A.3) Private internal variables */
- s4o.print(s4o.indent_spaces + "// PROGRAM private variables - TEMP, private and located variables\n");
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::local_vf,
- generate_cc_vardecl_c::temp_vt |
- generate_cc_vardecl_c::private_vt |
- generate_cc_vardecl_c::located_vt |
- generate_cc_vardecl_c::external_vt);
- vardecl->print(symbol->var_declarations);
- delete vardecl;
- /* (A.4) Generate private internal variables for SFC */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::sfcdecl_sd);
- sfcdecl->print(symbol->function_block_body);
- delete sfcdecl;
-
- /* (A.5) Program data structure type name. */
- s4o.indent_left();
- s4o.print("} ");
- symbol->program_type_name->accept(*this);
- s4o.print(";\n\n");
-
- /* (B) Constructor */
- /* (B.1) Constructor name... */
- s4o.print(s4o.indent_spaces + "void ");
- symbol->program_type_name->accept(*this);
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(");
-
- /* first and only parameter is a pointer to the data */
- symbol->program_type_name->accept(*this);
- s4o.print(" *");
- s4o.print(FB_FUNCTION_PARAM);
- s4o.print(") {\n");
- s4o.indent_right();
-
- /* (B.2) Member initializations... */
- s4o.print(s4o.indent_spaces);
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::constructorinit_vf,
- generate_cc_vardecl_c::input_vt |
- generate_cc_vardecl_c::output_vt |
- generate_cc_vardecl_c::inoutput_vt |
- generate_cc_vardecl_c::private_vt |
- generate_cc_vardecl_c::located_vt |
- generate_cc_vardecl_c::external_vt);
- vardecl->print(symbol->var_declarations, NULL, FB_FUNCTION_PARAM"->");
- delete vardecl;
- s4o.print("\n");
- /* (B.3) Generate private internal variables for SFC */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::sfcinit_sd);
- sfcdecl->print(symbol->function_block_body,FB_FUNCTION_PARAM"->");
- delete sfcdecl;
-
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "}\n\n");
-
- /* (C) Function with PROGRAM body */
- /* (C.1) Step definitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::stepdef_sd);
- sfcdecl->print(symbol->function_block_body);
- delete sfcdecl;
-
- /* (C.2) Action definitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::actiondef_sd);
- sfcdecl->print(symbol->function_block_body);
- delete sfcdecl;
-
- /* (C.3) Function declaration */
- s4o.print("// Code part\n");
- /* function interface */
- s4o.print("void ");
- symbol->program_type_name->accept(*this);
- s4o.print(FB_FUNCTION_SUFFIX);
- s4o.print("(");
- /* first and only parameter is a pointer to the data */
- symbol->program_type_name->accept(*this);
- s4o.print(" *");
- s4o.print(FB_FUNCTION_PARAM);
- s4o.print(") {\n");
- s4o.indent_right();
-
- /* (C.4) Initialize TEMP variables */
- /* function body */
- s4o.print(s4o.indent_spaces + "// Initialise TEMP variables\n");
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::init_vf,
- generate_cc_vardecl_c::temp_vt);
- vardecl->print(symbol->var_declarations, NULL, FB_FUNCTION_PARAM"->");
- delete vardecl;
- s4o.print("\n");
-
- /* (C.5) Function code */
- generate_cc_SFC_IL_ST_c generate_cc_code(&s4o, symbol, FB_FUNCTION_PARAM"->");
- symbol->function_block_body->accept(generate_cc_code);
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "} // ");
- symbol->program_type_name->accept(*this);
- s4o.print(FB_FUNCTION_SUFFIX);
- s4o.print(s4o.indent_spaces + "() \n\n");
-
- /* (C.6) Step undefinitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::stepundef_sd);
- sfcdecl->print(symbol->function_block_body);
- delete sfcdecl;
-
- /* (C.7) Action undefinitions */
- sfcdecl = new generate_cc_sfcdecl_c(&s4o, generate_cc_sfcdecl_c::actionundef_sd);
- sfcdecl->print(symbol->function_block_body);
- delete sfcdecl;
-
- s4o.indent_left();
- s4o.print("\n\n\n\n");
-
- return NULL;
-}
-
-}; /* generate_cc_pous_c */
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-class generate_cc_config_c: public generate_cc_typedecl_c {
-
- public:
- generate_cc_config_c(stage4out_c *s4o_ptr)
- : generate_cc_typedecl_c(s4o_ptr) {};
- virtual ~generate_cc_config_c(void) {}
-
- typedef enum {
- initprotos_dt,
- initdeclare_dt,
- runprotos_dt,
- rundeclare_dt
- } declaretype_t;
-
- declaretype_t wanted_declaretype;
-
-/********************************/
-/* B 1.7 Configuration elements */
-/********************************/
-
-
-public:
-/*
-CONFIGURATION configuration_name
- optional_global_var_declarations
- (resource_declaration_list | single_resource_declaration)
- optional_access_declarations
- optional_instance_specific_initializations
-END_CONFIGURATION
-*/
-/*
-SYM_REF6(configuration_declaration_c, configuration_name, global_var_declarations, resource_declarations, access_declarations, instance_specific_initializations, unused)
-*/
-void *visit(configuration_declaration_c *symbol) {
- generate_cc_vardecl_c *vardecl;
-
- /* Insert the header... */
- s4o.print("/*******************************************/\n");
- s4o.print("/* FILE GENERATED BY iec2cc */\n");
- s4o.print("/* Editing this file is not recommended... */\n");
- s4o.print("/*******************************************/\n\n");
- s4o.print("#include \"iec_std_lib.h\"\n\n");
-
- /* (A) configuration declaration... */
- /* (A.1) configuration name in comment */
- s4o.print("// CONFIGURATION ");
- symbol->configuration_name->accept(*this);
- s4o.print("\n");
-
- /* (A.2) Global variables */
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::local_vf,
- generate_cc_vardecl_c::global_vt);
- vardecl->print(symbol);
- delete vardecl;
- s4o.print("\n");
-
- /* (B) Initialisation Function */
- /* (B.1) Ressources initialisation protos... */
- wanted_declaretype = initprotos_dt;
- symbol->resource_declarations->accept(*this);
- s4o.print("\n");
-
- /* (B.2) Initialisation function name... */
- s4o.print(s4o.indent_spaces + "void config");
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(void) {\n");
- s4o.indent_right();
-
- /* (B.3) Global variables initializations... */
- s4o.print(s4o.indent_spaces);
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::constructorinit_vf,
- generate_cc_vardecl_c::global_vt);
- vardecl->print(symbol);
- delete vardecl;
- s4o.print("\n");
-
- /* (B.3) Resources initializations... */
- wanted_declaretype = initdeclare_dt;
- symbol->resource_declarations->accept(*this);
-
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "}\n\n");
-
-
- /* (C) Run Function*/
- /* (C.1) Resources run functions protos... */
- wanted_declaretype = runprotos_dt;
- symbol->resource_declarations->accept(*this);
- s4o.print("\n");
-
- /* (C.2) Run function name... */
- s4o.print(s4o.indent_spaces + "void config");
- s4o.print(FB_RUN_SUFFIX);
- s4o.print("(int tick) {\n");
- s4o.indent_right();
-
- /* (C.3) Resources initializations... */
- wanted_declaretype = rundeclare_dt;
- symbol->resource_declarations->accept(*this);
-
- /* (C.3) Close Public Function body */
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "}\n");
-
- return NULL;
-}
-
-void *visit(resource_declaration_c *symbol) {
- if (wanted_declaretype == initprotos_dt || wanted_declaretype == runprotos_dt) {
- s4o.print(s4o.indent_spaces + "void ");
- symbol->resource_name->accept(*this);
- if (wanted_declaretype == initprotos_dt) {
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(void);\n");
- }
- else {
- s4o.print(FB_RUN_SUFFIX);
- s4o.print("(int tick);\n");
- }
- }
- if (wanted_declaretype == initdeclare_dt || wanted_declaretype == rundeclare_dt) {
- s4o.print(s4o.indent_spaces);
- symbol->resource_name->accept(*this);
- if (wanted_declaretype == initdeclare_dt) {
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("();\n");
- }
- else {
- s4o.print(FB_RUN_SUFFIX);
- s4o.print("(tick);\n");
- }
- }
- return NULL;
-}
-
-void *visit(single_resource_declaration_c *symbol) {
- if (wanted_declaretype == initprotos_dt || wanted_declaretype == runprotos_dt) {
- s4o.print(s4o.indent_spaces + "void RESOURCE");
- if (wanted_declaretype == initprotos_dt) {
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(void);\n");
- }
- else {
- s4o.print(FB_RUN_SUFFIX);
- s4o.print("(int tick);\n");
- }
- }
- if (wanted_declaretype == initdeclare_dt || wanted_declaretype == rundeclare_dt) {
- s4o.print(s4o.indent_spaces + "RESOURCE");
- if (wanted_declaretype == initdeclare_dt) {
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("();\n");
- }
- else {
- s4o.print(FB_RUN_SUFFIX);
- s4o.print("(tick);\n");
- }
- }
- return NULL;
-}
-
-};
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-
-class generate_cc_resources_c: public generate_cc_typedecl_c {
-
- search_var_instance_decl_c *search_config_instance;
- search_var_instance_decl_c *search_resource_instance;
-
- private:
- /* The name of the resource curretnly being processed... */
- symbol_c *current_resource_name;
- symbol_c *current_global_vars;
-
- public:
- generate_cc_resources_c(stage4out_c *s4o_ptr, symbol_c *config_scope, symbol_c *resource_scope, unsigned long time)
- : generate_cc_typedecl_c(s4o_ptr) {
- search_config_instance = new search_var_instance_decl_c(config_scope);
- search_resource_instance = new search_var_instance_decl_c(resource_scope);
- common_ticktime = time;
- current_resource_name = NULL;
- current_global_vars = NULL;
- };
- virtual ~generate_cc_resources_c(void) {
- delete search_config_instance;
- delete search_resource_instance;
- }
-
- typedef enum {
- declare_dt,
- init_dt,
- run_dt
- } declaretype_t;
-
- declaretype_t wanted_declaretype;
-
- unsigned long common_ticktime;
-
- const char *current_program_name;
-
- typedef enum {
- assign_at,
- send_at
- } assigntype_t;
-
- assigntype_t wanted_assigntype;
-
-/********************************/
-/* B 1.7 Configuration elements */
-/********************************/
-
-/*
-RESOURCE resource_name ON resource_type_name
- optional_global_var_declarations
- single_resource_declaration
-END_RESOURCE
-*/
-// SYM_REF4(resource_declaration_c, resource_name, resource_type_name, global_var_declarations, resource_declaration)
- void *visit(resource_declaration_c *symbol) {
- current_resource_name = symbol->resource_name;
- current_global_vars = symbol->global_var_declarations;
-
- symbol->resource_declaration->accept(*this);
-
- current_resource_name = NULL;
- current_global_vars = NULL;
- return NULL;
- }
-
-/* task_configuration_list program_configuration_list */
-// SYM_REF2(single_resource_declaration_c, task_configuration_list, program_configuration_list)
- void *visit(single_resource_declaration_c *symbol) {
- bool single_resource = current_resource_name == NULL;
- if (single_resource)
- current_resource_name = new identifier_c("RESOURCE");
- generate_cc_vardecl_c *vardecl;
-
- /* Insert the header... */
- s4o.print("/*******************************************/\n");
- s4o.print("/* FILE GENERATED BY iec2cc */\n");
- s4o.print("/* Editing this file is not recommended... */\n");
- s4o.print("/*******************************************/\n\n");
- s4o.print("#include \"iec_std_lib.h\"\n\n");
-
- /* (A) resource declaration... */
- /* (A.1) resource name in comment */
- s4o.print("// RESOURCE ");
- current_resource_name->accept(*this);
- s4o.print("\n");
-
- /* (A.2) Global variables... */
- if (current_global_vars != NULL) {
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::local_vf,
- generate_cc_vardecl_c::global_vt);
- vardecl->print(current_global_vars);
- delete vardecl;
- }
- s4o.print("\n");
-
- /* (A.3) POUs inclusion */
- s4o.print("#include \"POUS.c\"\n\n");
-
- /* (A.4) Resource programs declaration... */
- wanted_declaretype = declare_dt;
- symbol->program_configuration_list->accept(*this);
- s4o.print("\n");
-
- /* (B) resource initialisation function... */
- /* (B.1) initialisation function name... */
- s4o.print("void ");
- current_resource_name->accept(*this);
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(void) {\n");
- s4o.indent_right();
-
- /* (B.2) Global variables initialisations... */
- if (current_global_vars != NULL) {
- s4o.print(s4o.indent_spaces);
- vardecl = new generate_cc_vardecl_c(&s4o,
- generate_cc_vardecl_c::constructorinit_vf,
- generate_cc_vardecl_c::global_vt);
- vardecl->print(current_global_vars);
- delete vardecl;
- }
- s4o.print("\n");
-
- /* (B.3) Resource programs initialisations... */
- wanted_declaretype = init_dt;
- symbol->program_configuration_list->accept(*this);
-
- s4o.indent_left();
- s4o.print("}\n\n");
-
- /* (C) Resource run function... */
- /* (C.1) Run function name... */
- s4o.print("void ");
- current_resource_name->accept(*this);
- s4o.print(FB_RUN_SUFFIX);
- s4o.print("(int tick) {\n");
- s4o.indent_right();
-
- /* (C.2) Task management... */
- symbol->task_configuration_list->accept(*this);
-
- /* (C.3) Program run declaration... */
- wanted_declaretype = run_dt;
- symbol->program_configuration_list->accept(*this);
-
- s4o.indent_left();
- s4o.print("}\n\n");
-
- if (single_resource) {
- delete current_resource_name;
- current_resource_name = NULL;
- }
- return NULL;
- }
-
-/* PROGRAM [RETAIN | NON_RETAIN] program_name [WITH task_name] ':' program_type_name ['(' prog_conf_elements ')'] */
-//SYM_REF6(program_configuration_c, retain_option, program_name, task_name, program_type_name, prog_conf_elements, unused)
- void *visit(program_configuration_c *symbol) {
- if (wanted_declaretype == declare_dt) {
- s4o.print(s4o.indent_spaces);
- symbol->program_type_name->accept(*this);
- s4o.print(" ");
- symbol->program_name->accept(*this);
- s4o.print(";\n");
- }
- if (wanted_declaretype == init_dt) {
- s4o.print(s4o.indent_spaces);
- symbol->program_type_name->accept(*this);
- s4o.print(FB_INIT_SUFFIX);
- s4o.print("(&");
- symbol->program_name->accept(*this);
- s4o.print(");\n");
- }
- if (wanted_declaretype == run_dt) {
- current_program_name = ((identifier_c*)(symbol->program_name))->value;
- if (symbol->task_name != NULL) {
- s4o.print(s4o.indent_spaces);
- s4o.print("if (");
- symbol->task_name->accept(*this);
- s4o.print(" == 0) {\n");
- s4o.indent_right();
- }
-
- wanted_assigntype = assign_at;
- if (symbol->prog_conf_elements != NULL)
- symbol->prog_conf_elements->accept(*this);
-
- s4o.print(s4o.indent_spaces);
- symbol->program_type_name->accept(*this);
- s4o.print(FB_FUNCTION_SUFFIX);
- s4o.print("(&");
- symbol->program_name->accept(*this);
- s4o.print(");\n");
-
- wanted_assigntype = send_at;
- if (symbol->prog_conf_elements != NULL)
- symbol->prog_conf_elements->accept(*this);
-
- if (symbol->task_name != NULL) {
- s4o.indent_left();
- s4o.print(s4o.indent_spaces + "}\n");
- }
- }
- return NULL;
- }
-
-/* TASK task_name task_initialization */
-//SYM_REF2(task_configuration_c, task_name, task_initialization)
- void *visit(task_configuration_c *symbol) {
- s4o.print(s4o.indent_spaces + "int ");
- symbol->task_name->accept(*this);
- s4o.print(" = ");
- symbol->task_initialization->accept(*this);
- s4o.print(";\n");
- return NULL;
- }
-
-/* '(' [SINGLE ASSIGN data_source ','] [INTERVAL ASSIGN data_source ','] PRIORITY ASSIGN integer ')' */
-//SYM_REF4(task_initialization_c, single_data_source, interval_data_source, priority_data_source, unused)
- void *visit(task_initialization_c *symbol) {
- if (symbol->interval_data_source != NULL) {
- calculate_time_c calculate_time;
- symbol->interval_data_source->accept(calculate_time);
- unsigned long time = calculate_time.get_time();
- if (time != 0) {
- s4o.print("tick % ");
- s4o.print_integer((int)(time / common_ticktime));
- }
- else
- s4o.print("1");
- }
- else
- s4o.print("1");
- return NULL;
- }
-
-/* any_symbolic_variable ASSIGN prog_data_source */
-//SYM_REF2(prog_cnxn_assign_c, symbolic_variable, prog_data_source)
- void *visit(prog_cnxn_assign_c *symbol) {
- if (wanted_assigntype == assign_at) {
- symbol_c *var_decl;
- unsigned int vartype = 0;
- symbol_c *current_var_reference = ((global_var_reference_c *)(symbol->prog_data_source))->global_var_name;
- var_decl = search_resource_instance->get_decl(current_var_reference);
- if (var_decl == NULL) {
- var_decl = search_config_instance->get_decl(current_var_reference);
- if (var_decl == NULL)
- ERROR;
- else
- vartype = search_config_instance->get_vartype();
- }
- else
- vartype = search_resource_instance->get_vartype();
-
- s4o.print(s4o.indent_spaces + "{extern ");
- var_decl->accept(*this);
- s4o.print(" ");
- symbol->prog_data_source->accept(*this);
- s4o.print("; ");
- s4o.print(current_program_name);
- s4o.print(".");
- symbol->symbolic_variable->accept(*this);
- s4o.print(" = ");
- if (vartype || search_var_instance_decl_c::global_vt)
- s4o.print("*");
- symbol->prog_data_source->accept(*this);
- s4o.print(";}\n");
- }
- return NULL;
- }
-
-/* any_symbolic_variable SENDTO data_sink */
-//SYM_REF2(prog_cnxn_sendto_c, symbolic_variable, data_sink)
- void *visit(prog_cnxn_sendto_c *symbol) {
- if (wanted_assigntype == send_at) {
- symbol_c *var_decl;
- unsigned int vartype = 0;
- symbol_c *current_var_reference = ((global_var_reference_c *)(symbol->data_sink))->global_var_name;
- var_decl = search_resource_instance->get_decl(current_var_reference);
- if (var_decl == NULL) {
- var_decl = search_config_instance->get_decl(current_var_reference);
- if (var_decl == NULL)
- ERROR;
- else
- vartype = search_config_instance->get_vartype();
- }
- else
- vartype = search_resource_instance->get_vartype();
-
- s4o.print(s4o.indent_spaces);
- s4o.print(s4o.indent_spaces + "{extern ");
- var_decl->accept(*this);
- s4o.print(" ");
- symbol->data_sink->accept(*this);
- s4o.print("; ");
- if (vartype || search_var_instance_decl_c::global_vt)
- s4o.print("*");
- symbol->data_sink->accept(*this);
- s4o.print(" = ");
- s4o.print(current_program_name);
- s4o.print(".");
- symbol->symbolic_variable->accept(*this);
- s4o.print("};\n");
- }
- return NULL;
- }
-
-};
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-class generate_cc_c: public iterator_visitor_c {
- protected:
- stage4out_c &s4o;
- stage4out_c pous_s4o;
- stage4out_c located_variables_s4o;
- generate_cc_pous_c generate_cc_pous;
-
- symbol_c *current_configuration;
-
- const char *current_name;
- const char *current_builddir;
-
- unsigned long common_ticktime;
-
- public:
- generate_cc_c(stage4out_c *s4o_ptr, const char *builddir):
- s4o(*s4o_ptr),
- pous_s4o(builddir, "POUS", "c"),
- located_variables_s4o(builddir, "LOCATED_VARIABLES","h"),
- generate_cc_pous(&pous_s4o) {
- current_builddir = builddir;
- current_configuration = NULL;
- }
-
- ~generate_cc_c(void) {}
-
-/***************************/
-/* B 0 - Programming Model */
-/***************************/
- void *visit(library_c *symbol) {
- generate_location_list_c generate_location_list(&located_variables_s4o);
- symbol->accept(generate_location_list);
-
- for(int i = 0; i < symbol->n; i++) {
- symbol->elements[i]->accept(*this);
- }
- return NULL;
- }
-
-/*************************/
-/* B.1 - Common elements */
-/*************************/
-/*******************************************/
-/* B 1.1 - Letters, digits and identifiers */
-/*******************************************/
- void *visit(identifier_c *symbol) {
- current_name = symbol->value;
- return NULL;
- }
-
-/**************************************/
-/* B.1.5 - Program organization units */
-/**************************************/
-/***********************/
-/* B 1.5.1 - Functions */
-/***********************/
- void *visit(function_declaration_c *symbol) {
- symbol->accept(generate_cc_pous);
- return NULL;
- }
-
-/*****************************/
-/* B 1.5.2 - Function Blocks */
-/*****************************/
- void *visit(function_block_declaration_c *symbol) {
- symbol->accept(generate_cc_pous);
- return NULL;
- }
-
-/**********************/
-/* B 1.5.3 - Programs */
-/**********************/
- void *visit(program_declaration_c *symbol) {
- symbol->accept(generate_cc_pous);
- return NULL;
- }
-
-
-/********************************/
-/* B 1.7 Configuration elements */
-/********************************/
- void *visit(configuration_declaration_c *symbol) {
- static int configuration_count = 0;
-
- if (configuration_count++) {
- /* the first configuration is the one we will use!! */
- ERROR;
- }
-
- current_configuration = symbol;
-
- calculate_common_ticktime_c calculate_common_ticktime;
- symbol->accept(calculate_common_ticktime);
- common_ticktime = calculate_common_ticktime.get_ticktime();
-
- symbol->configuration_name->accept(*this);
- stage4out_c config_s4o(current_builddir, current_name, "c");
- generate_cc_config_c generate_cc_config(&config_s4o);
- symbol->accept(generate_cc_config);
-
- config_s4o.print("int common_ticktime__ = ");
- config_s4o.print_integer((int)(common_ticktime / 1000000));
- config_s4o.print("; /*ms*/\n");
-
- symbol->resource_declarations->accept(*this);
-
- current_configuration = NULL;
-
- return NULL;
- }
-
- void *visit(resource_declaration_c *symbol) {
- symbol->resource_name->accept(*this);
- stage4out_c resources_s4o(current_builddir, current_name, "c");
- generate_cc_resources_c generate_cc_resources(&resources_s4o, current_configuration, symbol, common_ticktime);
- symbol->accept(generate_cc_resources);
- return NULL;
- }
-
- void *visit(single_resource_declaration_c *symbol) {
- stage4out_c resources_s4o(current_builddir, "RESOURCE", "c");
- generate_cc_resources_c generate_cc_resources(&resources_s4o, current_configuration, symbol, common_ticktime);
- symbol->accept(generate_cc_resources);
- return NULL;
- }
-
-};
-
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-/***********************************************************************/
-
-
-
-
-visitor_c *new_code_generator(stage4out_c *s4o, const char *builddir) {return new generate_cc_c(s4o, builddir);}
-void delete_code_generator(visitor_c *code_generator) {delete code_generator;}
-
-