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/*

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 *  matiec - a compiler for the programming languages defined in IEC 61131-3

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 *

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 *  Copyright (C) 2009-2012  Mario de Sousa (msousa@fe.up.pt)

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 *  Copyright (C) 2012       Manuele Conti (manuele.conti@sirius-es.it)

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 *  Copyright (C) 2012       Matteo Facchinetti (matteo.facchinetti@sirius-es.it)

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 *

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 *  This program is free software: you can redistribute it and/or modify

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 *  it under the terms of the GNU General Public License as published by

    10

 *  the Free Software Foundation, either version 3 of the License, or

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 *  (at your option) any later version.

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 *

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 *  This program is distributed in the hope that it will be useful,

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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 *  GNU General Public License for more details.

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 *

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 *  You should have received a copy of the GNU General Public License

    19

 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.

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 *

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 *

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 * This code is made available on the understanding that it will not be

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 * used in safety-critical situations without a full and competent review.

    24

 */

    25

    26

/*

    27

 * An IEC 61131-3 compiler.

    28

 *

    29

 * Based on the

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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)

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 *

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 */

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    34

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/*

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 *  Fill candidate list of data types for all symbols

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 */

    38

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#include "fill_candidate_datatypes.hh"

    40

#include "datatype_functions.hh"

    41

#include <typeinfo>

    42

#include <list>

    43

#include <string>

    44

#include <string.h>

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#include <strings.h>

    46

    47

/* set to 1 to see debug info during execution */

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static int debug = 0;

    49

    50

fill_candidate_datatypes_c::fill_candidate_datatypes_c(symbol_c *ignore) {

    51

}

    52

    53

fill_candidate_datatypes_c::~fill_candidate_datatypes_c(void) {

    54

}

    55

    56

symbol_c *fill_candidate_datatypes_c::widening_conversion(symbol_c *left_type, symbol_c *right_type, const struct widen_entry widen_table[]) {

    57

	int k;

    58

	/* find a widening table entry compatible */

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	for (k = 0; NULL != widen_table[k].left;  k++)

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		if ((typeid(*left_type) == typeid(*widen_table[k].left)) && (typeid(*right_type) == typeid(*widen_table[k].right)))

    61

			return widen_table[k].result;

    62

	return NULL;

    63

}

    64

    65

    66

/* add a data type to a candidate data type list, while guaranteeing no duplicate entries! */

    67

/* Returns true if it really did add the datatype to the list, or false if it was already present in the list! */

    68

bool fill_candidate_datatypes_c::add_datatype_to_candidate_list(symbol_c *symbol, symbol_c *datatype) {

    69

  if (search_in_candidate_datatype_list(datatype, symbol->candidate_datatypes) >= 0) 

    70

    /* already in the list, Just return! */

    71

    return false;

    72

    73

  /* not yet in the candidate data type list, so we insert it now! */

    74

  symbol->candidate_datatypes.push_back(datatype);

    75

  return true;

    76

}

    77

    78

    79

    80

    81

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/* returns true if compatible function/FB invocation, otherwise returns false */

    83

/* Assumes that the candidate_datatype lists of all the parameters being passed haved already been filled in */

    84

/*

    85

 * All parameters being passed to the called function MUST be in the parameter list to which f_call points to!

    86

 * This means that, for non formal function calls in IL, de current (default value) must be artificially added to the

    87

 * beginning of the parameter list BEFORE calling handle_function_call().

    88

 */

    89

bool fill_candidate_datatypes_c::match_nonformal_call(symbol_c *f_call, symbol_c *f_decl) {

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	symbol_c *call_param_value,  *param_datatype;

    91

	identifier_c *param_name;

    92

	function_param_iterator_c       fp_iterator(f_decl);

    93

	function_call_param_iterator_c fcp_iterator(f_call);

    94

	int extensible_parameter_highest_index = -1;

    95

	unsigned int i;

    96

    97

	/* Iterating through the non-formal parameters of the function call */

    98

	while((call_param_value = fcp_iterator.next_nf()) != NULL) {

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		/* Iterate to the next parameter of the function being called.

   100

		 * Get the name of that parameter, and ignore if EN or ENO.

   101

		 */

   102

		do {

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			param_name = fp_iterator.next();

   104

			/* If there is no other parameter declared, then we are passing too many parameters... */

   105

			if(param_name == NULL) return false;

   106

		} while ((strcmp(param_name->value, "EN") == 0) || (strcmp(param_name->value, "ENO") == 0));

   107

   108

		/* TODO: verify if it is lvalue when INOUT or OUTPUT parameters! */

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		/* Get the parameter type */

   110

		param_datatype = base_type(fp_iterator.param_type());

   111

   112

		/* check whether one of the candidate_data_types of the value being passed is the same as the param_type */

   113

		if (search_in_candidate_datatype_list(param_datatype, call_param_value->candidate_datatypes) < 0)

   114

			return false; /* return false if param_type not in the list! */

   115

	}

   116

	/* call is compatible! */

   117

	return true;

   118

}

   119

   120

   121

   122

/* returns true if compatible function/FB invocation, otherwise returns false */

   123

/* Assumes that the candidate_datatype lists of all the parameters being passed haved already been filled in */

   124

bool fill_candidate_datatypes_c::match_formal_call(symbol_c *f_call, symbol_c *f_decl, symbol_c **first_param_datatype) {

   125

	symbol_c *call_param_value, *call_param_name, *param_datatype;

   126

	symbol_c *verify_duplicate_param;

   127

	identifier_c *param_name;

   128

	function_param_iterator_c       fp_iterator(f_decl);

   129

	function_call_param_iterator_c fcp_iterator(f_call);

   130

	int extensible_parameter_highest_index = -1;

   131

	identifier_c *extensible_parameter_name;

   132

	unsigned int i;

   133

	bool is_first_param = true;

   134

   135

	/* Iterating through the formal parameters of the function call */

   136

	while((call_param_name = fcp_iterator.next_f()) != NULL) {

   137

		/* Obtaining the value being passed in the function call */

   138

		call_param_value = fcp_iterator.get_current_value();

   139

		/* the following should never occur. If it does, then we have a bug in our code... */

   140

		if (NULL == call_param_value) ERROR;

   141

   142

		/* Obtaining the assignment direction:  := (assign_in) or => (assign_out) */

   143

		function_call_param_iterator_c::assign_direction_t call_param_dir = fcp_iterator.get_assign_direction();

   144

   145

		/* Checking if there are duplicated parameter values */

   146

		verify_duplicate_param = fcp_iterator.search_f(call_param_name);

   147

		if(verify_duplicate_param != call_param_value)

   148

			return false;

   149

   150

		/* Obtaining the type of the value being passed in the function call */

   151

		std::vector <symbol_c *>&call_param_types = call_param_value->candidate_datatypes;

   152

   153

		/* Find the corresponding parameter in function declaration */

   154

		param_name = fp_iterator.search(call_param_name);

   155

		if(param_name == NULL) return false;

   156

		/* Get the parameter data type */

   157

		param_datatype = base_type(fp_iterator.param_type());

   158

		/* Get the parameter direction: IN, OUT, IN_OUT */

   159

		function_param_iterator_c::param_direction_t param_dir = fp_iterator.param_direction();

   160

   161

		/* check whether direction (IN, OUT, IN_OUT) and assignment types (:= , =>) are compatible !!! */

   162

		if          (function_call_param_iterator_c::assign_in  == call_param_dir) {

   163

			if ((function_param_iterator_c::direction_in    != param_dir) &&

   164

			    (function_param_iterator_c::direction_inout != param_dir))

   165

				return false;

   166

		} else if   (function_call_param_iterator_c::assign_out == call_param_dir) {

   167

			if ((function_param_iterator_c::direction_out   != param_dir))

   168

				return false;

   169

		} else ERROR;

   170

   171

		/* check whether one of the candidate_data_types of the value being passed is the same as the param_type */

   172

		if (search_in_candidate_datatype_list(param_datatype, call_param_types) < 0)

   173

			return false; /* return false if param_type not in the list! */

   174

   175

		/* If this is the first parameter, then copy the datatype to *first_param_datatype */

   176

		if (is_first_param)

   177

			if (NULL != first_param_datatype)

   178

				*first_param_datatype = param_datatype;

   179

		is_first_param = false;

   180

	}

   181

	/* call is compatible! */

   182

	return true;

   183

}

   184

   185

   186

   187

   188

/* Handle a generic function call!

   189

 * Assumes that the parameter_list containing the values being passed in this function invocation

   190

 * has already had all the candidate_datatype lists filled in!

   191

 *

   192

 * All parameters being passed to the called function MUST be in the parameter list to which f_call points to!

   193

 * This means that, for non formal function calls in IL, de current (default value) must be artificially added to the

   194

 * beginning of the parameter list BEFORE calling handle_function_call().

   195

 */

   196

/*

   197

typedef struct {

   198

  symbol_c *function_name,

   199

  symbol_c *nonformal_operand_list,

   200

  symbol_c *   formal_operand_list,

   201

   202

  std::vector <symbol_c *> &candidate_functions,  

   203

  symbol_c &*called_function_declaration,

   204

  int      &extensible_param_count

   205

} generic_function_call_t;

   206

*/

   207

/*

   208

void narrow_candidate_datatypes_c::narrow_function_invocation(symbol_c *fcall, generic_function_call_t fcall_data) {

   209

void *fill_candidate_datatypes_c::handle_function_call(symbol_c *f_call, symbol_c *function_name, invocation_type_t invocation_type,

   210

                                                       std::vector <symbol_c *> *candidate_datatypes,

   211

                                                       std::vector <symbol_c *> *candidate_functions) {

   212

  */

   213

void fill_candidate_datatypes_c::handle_function_call(symbol_c *fcall, generic_function_call_t fcall_data) {

   214

	function_declaration_c *f_decl;

   215

	list_c *parameter_list;

   216

	list_c *parameter_candidate_datatypes;

   217

	symbol_c *returned_parameter_type;

   218

   219

	if (debug) std::cout << "function()\n";

   220

   221

	function_symtable_t::iterator lower = function_symtable.lower_bound(fcall_data.function_name);

   222

	function_symtable_t::iterator upper = function_symtable.upper_bound(fcall_data.function_name);

   223

	/* If the name of the function being called is not found in the function symbol table, then this is an invalid call */

   224

	/* Since the lexical parser already checks for this, then if this occurs then we have an internal compiler error. */

   225

	if (lower == function_symtable.end()) ERROR;

   226

   227

	/* Look for all compatible function declarations, and add their return datatypes 

   228

	 * to the candidate_datatype list of this function invocation. 

   229

	 *

   230

	 * If only one function exists, we add its return datatype to the candidate_datatype list,

   231

	 * even if the parameters passed to it are invalid.

   232

	 * This guarantees that the remainder of the expression in which the function call is inserted

   233

	 * is treated as if the function call returns correctly, and therefore does not generate

   234

	 * spurious error messages.

   235

	 * Even if the parameters to the function call are invalid, doing this is still safe, as the 

   236

	 * expressions inside the function call will themselves have erros and will  guarantee that 

   237

	 * compilation is aborted in stage3 (in print_datatypes_error_c).

   238

	 */

   239

	if (function_symtable.multiplicity(fcall_data.function_name) == 1) {

   240

		f_decl = function_symtable.get_value(lower);

   241

		returned_parameter_type = base_type(f_decl->type_name);

   242

		if (add_datatype_to_candidate_list(fcall, returned_parameter_type))

   243

			/* we only add it to the function declaration list if this entry was not already present in the candidate datatype list! */

   244

			fcall_data.candidate_functions.push_back(f_decl);

   245

   246

	}

   247

	for(; lower != upper; lower++) {

   248

		bool compatible = false;

   249

   250

		f_decl = function_symtable.get_value(lower);

   251

		/* Check if function declaration in symbol_table is compatible with parameters */

   252

		if (NULL != fcall_data.nonformal_operand_list) compatible=match_nonformal_call(fcall, f_decl);

   253

		if (NULL != fcall_data.   formal_operand_list) compatible=   match_formal_call(fcall, f_decl);

   254

		if (compatible) {

   255

			/* Add the data type returned by the called functions. 

   256

			 * However, only do this if this data type is not already present in the candidate_datatypes list_c

   257

			 */

   258

			returned_parameter_type = base_type(f_decl->type_name);		

   259

			if (add_datatype_to_candidate_list(fcall, returned_parameter_type))

   260

				/* we only add it to the function declaration list if this entry was not already present in the candidate datatype list! */

   261

				fcall_data.candidate_functions.push_back(f_decl);

   262

		}

   263

	}

   264

	if (debug) std::cout << "end_function() [" << fcall->candidate_datatypes.size() << "] result.\n";

   265

	return;

   266

}

   267

   268

   269

/* handle implicit FB call in IL.

   270

 * e.g.  CLK ton_var

   271

 *        CU counter_var

   272

 */

   273

void fill_candidate_datatypes_c::handle_implicit_il_fb_call(symbol_c *il_instruction, const char *param_name, symbol_c *&called_fb_declaration) {

   274

	symbol_c *fb_type_id = search_varfb_instance_type->get_basetype_id(il_operand);

   275

  	/* Although a call to a non-declared FB is a semantic error, this is currently caught by stage 2! */

   276

	if (NULL == fb_type_id) ERROR;

   277

   278

	function_block_declaration_c *fb_decl = function_block_type_symtable.find_value(fb_type_id);

   279

	if (function_block_type_symtable.end_value() == fb_decl)

   280

		/* The il_operand is not the name of a FB instance. Most probably it is the name of a variable of some other type.

   281

		 * this is a semantic error.

   282

		 */

   283

		fb_decl = NULL;

   284

   285

	/* The narrow_candidate_datatypes_c does not rely on this called_fb_declaration pointer being == NULL to conclude that

   286

	 * we have a datatype incompatibility error, so we set it to fb_decl to allow the print_datatype_error_c to print out

   287

	 * more informative error messages!

   288

	 */

   289

	called_fb_declaration = fb_decl;

   290

   291

	/* This implicit FB call does not change the value stored in the current/default IL variable */

   292

	/* It does, however, require that the datatype be compatible with the input parameter of the FB being called. 

   293

	 * If we were to follow the filling & narrowing algorithm correctly (implemented in fill_candidate_datatypes_c

   294

	 * & narrow_candidate_datatypes_c respectively), we should be restricting the candidate_datatpes to the datatypes

   295

	 * that are compatible to the FB call. 

   296

	 * However, doing the above will often result in some very confusing error messages for the user, especially in the case

   297

	 * in which the FB call is wrong, so the resulting cadidate datatypes is an empty list. In this case, the user would see

   298

	 * many error messages related to the IL instructions that follow the FB call, even though those IL instructions may be perfectly

   299

	 * correct.

   300

	 * For now, we will simply let the narrow_candidate_datatypes_c verify if the datatypes are compatible (something that should be done

   301

	 * here).

   302

	 */

   303

	if (NULL != prev_il_instruction)

   304

		il_instruction->candidate_datatypes = prev_il_instruction->candidate_datatypes; 

   305

   306

	if (debug) std::cout << "handle_implicit_il_fb_call() [" << prev_il_instruction->candidate_datatypes.size() << "] ==> " << il_instruction->candidate_datatypes.size() << " result.\n";

   307

}

   308

   309

   310

/* a helper function... */

   311

symbol_c *fill_candidate_datatypes_c::base_type(symbol_c *symbol) {

   312

	/* NOTE: symbol == NULL is valid. It will occur when, for e.g., an undefined/undeclared symbolic_variable is used

   313

	 *       in the code.

   314

	 */

   315

	if (symbol == NULL) return NULL;

   316

	return (symbol_c *)symbol->accept(search_base_type);

   317

}

   318

   319

/*********************/

   320

/* B 1.2 - Constants */

   321

/*********************/

   322

/******************************/

   323

/* B 1.2.1 - Numeric Literals */

   324

/******************************/

   325

void *fill_candidate_datatypes_c::visit(real_c *symbol) {

   326

	int calc_size;

   327

   328

	calc_size = sizeoftype(symbol);

   329

	if (calc_size <= sizeoftype(&search_constant_type_c::real_type_name))

   330

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::real_type_name);

   331

	if (calc_size <= sizeoftype(&search_constant_type_c::lreal_type_name))

   332

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lreal_type_name);

   333

	if (debug) std::cout << "ANY_REAL [" << symbol->candidate_datatypes.size() << "]" << std::endl;

   334

	return NULL;

   335

}

   336

   337

void *fill_candidate_datatypes_c::visit(integer_c *symbol) {

   338

	int calc_size;

   339

   340

	calc_size = sizeoftype(symbol);

   341

	if (calc_size <= sizeoftype(&search_constant_type_c::bool_type_name))

   342

	        add_datatype_to_candidate_list(symbol, &search_constant_type_c::bool_type_name);

   343

	if (calc_size <= sizeoftype(&search_constant_type_c::byte_type_name))

   344

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::byte_type_name);

   345

	if (calc_size <= sizeoftype(&search_constant_type_c::word_type_name))

   346

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::word_type_name);

   347

	if (calc_size <= sizeoftype(&search_constant_type_c::dword_type_name))

   348

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dword_type_name);

   349

	if (calc_size <= sizeoftype(&search_constant_type_c::lword_type_name))

   350

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lword_type_name);

   351

   352

	if (calc_size < sizeoftype(&search_constant_type_c::sint_type_name))

   353

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::sint_type_name);

   354

	if (calc_size < sizeoftype(&search_constant_type_c::int_type_name))

   355

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::int_type_name);

   356

	if (calc_size < sizeoftype(&search_constant_type_c::dint_type_name))

   357

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dint_type_name);

   358

	if (calc_size < sizeoftype(&search_constant_type_c::lint_type_name))

   359

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lint_type_name);

   360

	if (calc_size <= sizeoftype(&search_constant_type_c::usint_type_name))

   361

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::usint_type_name);

   362

	if (calc_size <= sizeoftype(&search_constant_type_c::uint_type_name))

   363

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::uint_type_name);

   364

	if (calc_size <= sizeoftype(&search_constant_type_c::udint_type_name))

   365

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::udint_type_name);

   366

	if (calc_size <= sizeoftype(&search_constant_type_c::ulint_type_name))

   367

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::ulint_type_name);

   368

	if (debug) std::cout << "ANY_INT [" << symbol->candidate_datatypes.size()<< "]" << std::endl;

   369

	return NULL;

   370

}

   371

   372

void *fill_candidate_datatypes_c::visit(neg_real_c *symbol) {

   373

	if (sizeoftype(symbol) <= sizeoftype(&search_constant_type_c::real_type_name))

   374

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::real_type_name);

   375

	add_datatype_to_candidate_list(symbol, &search_constant_type_c::lreal_type_name);

   376

	if (debug) std::cout << "neg ANY_REAL [" << symbol->candidate_datatypes.size() << "]" << std::endl;

   377

	return NULL;

   378

}

   379

   380

void *fill_candidate_datatypes_c::visit(neg_integer_c *symbol) {

   381

	int calc_size;

   382

   383

	calc_size = sizeoftype(symbol);

   384

	if (calc_size <= sizeoftype(&search_constant_type_c::int_type_name))

   385

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::int_type_name);

   386

	if (calc_size <= sizeoftype(&search_constant_type_c::sint_type_name))

   387

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::sint_type_name);

   388

	if (calc_size <= sizeoftype(&search_constant_type_c::dint_type_name))

   389

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dint_type_name);

   390

	if (calc_size <= sizeoftype(&search_constant_type_c::lint_type_name))

   391

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lint_type_name);

   392

	if (debug) std::cout << "neg ANY_INT [" << symbol->candidate_datatypes.size() << "]" << std::endl;

   393

	return NULL;

   394

}

   395

   396

void *fill_candidate_datatypes_c::visit(binary_integer_c *symbol) {

   397

	int calc_size;

   398

   399

	calc_size = sizeoftype(symbol);

   400

	if (calc_size <= sizeoftype(&search_constant_type_c::bool_type_name))

   401

	        add_datatype_to_candidate_list(symbol, &search_constant_type_c::bool_type_name);

   402

	if (calc_size <= sizeoftype(&search_constant_type_c::byte_type_name))

   403

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::byte_type_name);

   404

	if (calc_size <= sizeoftype(&search_constant_type_c::word_type_name))

   405

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::word_type_name);

   406

	if (calc_size <= sizeoftype(&search_constant_type_c::dword_type_name))

   407

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dword_type_name);

   408

	if (calc_size <= sizeoftype(&search_constant_type_c::lword_type_name))

   409

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lword_type_name);

   410

   411

	if (calc_size < sizeoftype(&search_constant_type_c::sint_type_name))

   412

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::sint_type_name);

   413

	if (calc_size < sizeoftype(&search_constant_type_c::int_type_name))

   414

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::int_type_name);

   415

	if (calc_size < sizeoftype(&search_constant_type_c::dint_type_name))

   416

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dint_type_name);

   417

	if (calc_size < sizeoftype(&search_constant_type_c::lint_type_name))

   418

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lint_type_name);

   419

	if (calc_size <= sizeoftype(&search_constant_type_c::usint_type_name))

   420

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::usint_type_name);

   421

	if (calc_size <= sizeoftype(&search_constant_type_c::uint_type_name))

   422

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::uint_type_name);

   423

	if (calc_size <= sizeoftype(&search_constant_type_c::udint_type_name))

   424

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::udint_type_name);

   425

	if (calc_size <= sizeoftype(&search_constant_type_c::ulint_type_name))

   426

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::ulint_type_name);

   427

	if (debug) std::cout << "ANY_INT [" << symbol->candidate_datatypes.size()<< "]" << std::endl;

   428

	return NULL;

   429

}

   430

   431

void *fill_candidate_datatypes_c::visit(octal_integer_c *symbol) {

   432

	int calc_size;

   433

   434

	calc_size = sizeoftype(symbol);

   435

	if (calc_size <= sizeoftype(&search_constant_type_c::bool_type_name))

   436

	        add_datatype_to_candidate_list(symbol, &search_constant_type_c::bool_type_name);

   437

	if (calc_size <= sizeoftype(&search_constant_type_c::byte_type_name))

   438

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::byte_type_name);

   439

	if (calc_size <= sizeoftype(&search_constant_type_c::word_type_name))

   440

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::word_type_name);

   441

	if (calc_size <= sizeoftype(&search_constant_type_c::dword_type_name))

   442

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dword_type_name);

   443

	if (calc_size <= sizeoftype(&search_constant_type_c::lword_type_name))

   444

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lword_type_name);

   445

   446

	if (calc_size < sizeoftype(&search_constant_type_c::sint_type_name))

   447

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::sint_type_name);

   448

	if (calc_size < sizeoftype(&search_constant_type_c::int_type_name))

   449

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::int_type_name);

   450

	if (calc_size < sizeoftype(&search_constant_type_c::dint_type_name))

   451

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dint_type_name);

   452

	if (calc_size < sizeoftype(&search_constant_type_c::lint_type_name))

   453

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lint_type_name);

   454

	if (calc_size <= sizeoftype(&search_constant_type_c::usint_type_name))

   455

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::usint_type_name);

   456

	if (calc_size <= sizeoftype(&search_constant_type_c::uint_type_name))

   457

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::uint_type_name);

   458

	if (calc_size <= sizeoftype(&search_constant_type_c::udint_type_name))

   459

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::udint_type_name);

   460

	if (calc_size <= sizeoftype(&search_constant_type_c::ulint_type_name))

   461

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::ulint_type_name);

   462

	if (debug) std::cout << "ANY_INT [" << symbol->candidate_datatypes.size()<< "]" << std::endl;

   463

	return NULL;

   464

}

   465

   466

void *fill_candidate_datatypes_c::visit(hex_integer_c *symbol) {

   467

	int calc_size;

   468

   469

	calc_size = sizeoftype(symbol);

   470

	if (calc_size <= sizeoftype(&search_constant_type_c::bool_type_name))

   471

	        add_datatype_to_candidate_list(symbol, &search_constant_type_c::bool_type_name);

   472

	if (calc_size <= sizeoftype(&search_constant_type_c::byte_type_name))

   473

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::byte_type_name);

   474

	if (calc_size <= sizeoftype(&search_constant_type_c::word_type_name))

   475

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::word_type_name);

   476

	if (calc_size <= sizeoftype(&search_constant_type_c::dword_type_name))

   477

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dword_type_name);

   478

	if (calc_size <= sizeoftype(&search_constant_type_c::lword_type_name))

   479

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lword_type_name);

   480

   481

	if (calc_size < sizeoftype(&search_constant_type_c::sint_type_name))

   482

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::sint_type_name);

   483

	if (calc_size < sizeoftype(&search_constant_type_c::int_type_name))

   484

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::int_type_name);

   485

	if (calc_size < sizeoftype(&search_constant_type_c::dint_type_name))

   486

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::dint_type_name);

   487

	if (calc_size < sizeoftype(&search_constant_type_c::lint_type_name))

   488

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::lint_type_name);

   489

	if (calc_size <= sizeoftype(&search_constant_type_c::usint_type_name))

   490

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::usint_type_name);

   491

	if (calc_size <= sizeoftype(&search_constant_type_c::uint_type_name))

   492

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::uint_type_name);

   493

	if (calc_size <= sizeoftype(&search_constant_type_c::udint_type_name))

   494

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::udint_type_name);

   495

	if (calc_size <= sizeoftype(&search_constant_type_c::ulint_type_name))

   496

		add_datatype_to_candidate_list(symbol, &search_constant_type_c::ulint_type_name);

   497

	if (debug) std::cout << "ANY_INT [" << symbol->candidate_datatypes.size()<< "]" << std::endl;

   498

	return NULL;

   499

}

   500