1

/*

     2

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

     3

 *

     4

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

     5

 *  Copyright (C) 2012       Manuele Conti  (conti.ma@alice.it)

     6

 *

     7

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

     8

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

     9

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

    10

 *  (at your option) any later version.

    11

 *

    12

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

    13

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

    14

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    15

 *  GNU General Public License for more details.

    16

 *

    17

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

    18

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

    19

 *

    20

 *

    21

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

    22

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

    23

 */

    24

    25

#include "datatype_functions.hh"

    26

#include "../absyntax_utils/absyntax_utils.hh"

    27

#include <vector>

    28

    29

    30

    31

    32

    33

    34

elementary_type_c *elementary_type_c::singleton = NULL;

    35

    36

const char *elementary_type_c::to_string(symbol_c *symbol) {

    37

  if (NULL == singleton)    singleton = new elementary_type_c;

    38

  if (NULL == singleton)    ERROR;

    39

  const char *res           = (const char *)symbol->accept(*singleton);

    40

  if (NULL == res)          ERROR;

    41

  return res;

    42

}

    43

    44

    45

    46

    47

    48

/* Macro that expand to subtypes */

    49

/* copied from matiec/lib/create_standard_functions_txt.sh */

    50

#define __ANY(DO)                 __ANY_DERIVED(DO) __ANY_ELEMENTARY(DO)

    51

#define __ANY_DERIVED(DO)

    52

#define __ANY_ELEMENTARY(DO)      __ANY_MAGNITUDE(DO) __ANY_BIT(DO) __ANY_STRING(DO) __ANY_DATE(DO)

    53

#define __ANY_MAGNITUDE(DO)       __ANY_NUM(DO) DO(time)

    54

#define __ANY_BIT(DO)             __ANY_NBIT(DO) DO(bool)

    55

#define __ANY_NBIT(DO)            DO(byte) DO(word) DO(dword) DO(lword)

    56

//#define __ANY_STRING(DO)          DO(string) DO(wstring)

    57

#define __ANY_STRING(DO)          DO(string)

    58

#define __ANY_DATE(DO)            DO(date) DO(tod) DO(dt)

    59

#define __ANY_NUM(DO)             __ANY_REAL(DO) __ANY_INT(DO)

    60

#define __ANY_REAL(DO)            DO(real) DO(lreal)

    61

#define __ANY_INT(DO)             __ANY_SINT(DO) __ANY_UINT(DO)

    62

#define __ANY_SINT(DO)            DO(sint) DO(int) DO(dint) DO(lint)

    63

#define __ANY_UINT(DO)            DO(usint) DO(uint) DO(udint) DO(ulint)

    64

    65

#define __ANY_1(DO,P1)            __ANY_DERIVED_1(DO,P1) __ANY_ELEMENTARY_1(DO,P1)

    66

#define __ANY_DERIVED_1(DO,P1)

    67

#define __ANY_ELEMENTARY_1(DO,P1) __ANY_MAGNITUDE_1(DO,P1) __ANY_BIT_1(DO,P1) __ANY_STRING_1(DO,P1) __ANY_DATE_1(DO,P1)

    68

#define __ANY_MAGNITUDE_1(DO,P1)  __ANY_NUM_1(DO,P1) DO(time,P1)

    69

#define __ANY_BIT_1(DO,P1)        __ANY_NBIT_1(DO,P1) DO(bool,P1)

    70

#define __ANY_NBIT_1(DO,P1)       DO(byte,P1) DO(word,P1) DO(dword,P1) DO(lword,P1)

    71

// #define __ANY_STRING_1(DO,P1)     DO(string,P1) DO(wstring,P1)

    72

#define __ANY_STRING_1(DO,P1)     DO(string,P1)

    73

#define __ANY_DATE_1(DO,P1)       DO(date,P1) DO(tod,P1) DO(dt,P1)

    74

#define __ANY_NUM_1(DO,P1)        __ANY_REAL_1(DO,P1) __ANY_INT_1(DO,P1)

    75

#define __ANY_REAL_1(DO,P1)       DO(real,P1) DO(lreal,P1)

    76

#define __ANY_INT_1(DO,P1)        __ANY_SINT_1(DO,P1) __ANY_UINT_1(DO,P1)

    77

#define __ANY_SINT_1(DO,P1)       DO(sint,P1) DO(int,P1) DO(dint,P1) DO(lint,P1)

    78

#define __ANY_UINT_1(DO,P1)       DO(usint,P1) DO(uint,P1) DO(udint,P1) DO(ulint,P1)

    79

    80

    81

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

    82

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

    83

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

    84

/*******  TABLE 24: Standard arithmetic functions       *******/

    85

/*******    merged with                                 *******/

    86

/*******  TABLE 30: Functions of time data types        *******/

    87

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

    88

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

    89

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

    90

    91

/* NOTE: IEC 61131-3 v2 declares that using implicit operations ('+', '-', '*', '/') on ANYTIME data types is

    92

 *       valid, but deprecated, suposedly meaning that they will be removed in the following version of the standard.

    93

 *       However, the current draft version of IEC 61131-3 v3 still allows this use, and no longer declares these

    94

 *       implicit operations as deprecated.

    95

 *       Because of this, and although we are implementing v2 of the standard, we will no longer mark these 

    96

 *       operations as deprecated.

    97

 */

    98

  #define ANYTIME_OPER_DEPRECATION_STATUS widen_entry::ok

    99

//#define ANYTIME_OPER_DEPRECATION_STATUS widen_entry::deprecated

   100

   101

   102

const struct widen_entry widen_ADD_table[] = {

   103

#define __add(TYPE)       \

   104

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   105

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   106

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   107

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   108

    __ANY_NUM(__add)

   109

#undef __add

   110

   111

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

   112

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

   113

    /*** Operations with TIME, DT and TOD... ***/

   114

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

   115

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

   116

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name,         widen_entry::ok                 },

   117

    { &search_constant_type_c::tod_type_name,           &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   118

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   119

    /* not currently supported by stage4, so it is best no tto add it for now... */

   120

//  { &search_constant_type_c::time_type_name,          &search_constant_type_c::tod_type_name,             &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   121

    { &search_constant_type_c::dt_type_name,            &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

   122

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   123

    /* not currently supported by stage4, so it is best no tto add it for now... */

   124

//  { &search_constant_type_c::time_type_name,          &search_constant_type_c::dt_type_name,              &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

   125

   126

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

   127

    /* SAFE version on the left... */

   128

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

   129

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name,         widen_entry::ok                 },

   130

    { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   131

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   132

    /* not currently supported by stage4, so it is best no tto add it for now... */

   133

//  { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::tod_type_name,             &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   134

    { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

   135

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   136

    /* not currently supported by stage4, so it is best no tto add it for now... */

   137

//  { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::dt_type_name,              &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

   138

   139

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

   140

    /* SAFE version on the right... */

   141

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

   142

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::safetime_type_name,        &search_constant_type_c::time_type_name,         widen_entry::ok         },

   143

    { &search_constant_type_c::tod_type_name,           &search_constant_type_c::safetime_type_name,        &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   144

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   145

    /* not currently supported by stage4, so it is best no tto add it for now... */

   146

//  { &search_constant_type_c::time_type_name,          &search_constant_type_c::safetod_type_name,         &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   147

    { &search_constant_type_c::dt_type_name,            &search_constant_type_c::safetime_type_name,        &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

   148

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   149

    /* not currently supported by stage4, so it is best no tto add it for now... */

   150

//  { &search_constant_type_c::time_type_name,          &search_constant_type_c::safedt_type_name,          &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },         

   151

   152

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

   153

    /* SAFE version on left and right... */

   154

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

   155

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetime_type_name,     widen_entry::ok                 },

   156

    { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetod_type_name,      ANYTIME_OPER_DEPRECATION_STATUS },

   157

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   158

    /* not currently supported by stage4, so it is best no tto add it for now... */

   159

//  { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safetod_type_name,         &search_constant_type_c::safetod_type_name,      ANYTIME_OPER_DEPRECATION_STATUS },

   160

    { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safedt_type_name,       ANYTIME_OPER_DEPRECATION_STATUS },         

   161

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'addition' is supposed to be commutative, we add it anyway... */

   162

    /* not currently supported by stage4, so it is best no tto add it for now... */

   163

//  { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safedt_type_name,          &search_constant_type_c::safedt_type_name,       ANYTIME_OPER_DEPRECATION_STATUS },

   164

   165

    { NULL, NULL, NULL, widen_entry::ok },

   166

};

   167

   168

   169

   170

   171

   172

   173

   174

const struct widen_entry widen_SUB_table[] = {

   175

#define __sub(TYPE)       \

   176

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   177

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   178

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   179

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   180

    __ANY_NUM(__sub)

   181

#undef __sub

   182

   183

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

   184

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

   185

    /*** Operations with TIME, DT and TOD... ***/

   186

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

   187

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

   188

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name,         widen_entry::ok                 },

   189

    { &search_constant_type_c::date_type_name,          &search_constant_type_c::date_type_name,            &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   190

    { &search_constant_type_c::tod_type_name,           &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   191

    { &search_constant_type_c::tod_type_name,           &search_constant_type_c::tod_type_name,             &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   192

    { &search_constant_type_c::dt_type_name,            &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },

   193

    { &search_constant_type_c::dt_type_name,            &search_constant_type_c::dt_type_name,              &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },        

   194

   195

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

   196

    /* SAFE version on the left... */

   197

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

   198

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name,         widen_entry::ok                 },

   199

    { &search_constant_type_c::safedate_type_name,      &search_constant_type_c::date_type_name,            &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   200

    { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::time_type_name,            &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   201

    { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::tod_type_name,             &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   202

    { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::time_type_name,            &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },

   203

    { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::dt_type_name,              &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },        

   204

   205

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

   206

    /* SAFE version on the right... */

   207

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

   208

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::safetime_type_name,        &search_constant_type_c::time_type_name,         widen_entry::ok                 },

   209

    { &search_constant_type_c::date_type_name,          &search_constant_type_c::safedate_type_name,        &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   210

    { &search_constant_type_c::tod_type_name,           &search_constant_type_c::safetime_type_name,        &search_constant_type_c::tod_type_name,          ANYTIME_OPER_DEPRECATION_STATUS },

   211

    { &search_constant_type_c::tod_type_name,           &search_constant_type_c::safetod_type_name,         &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },

   212

    { &search_constant_type_c::dt_type_name,            &search_constant_type_c::safetime_type_name,        &search_constant_type_c::dt_type_name,           ANYTIME_OPER_DEPRECATION_STATUS },

   213

    { &search_constant_type_c::dt_type_name,            &search_constant_type_c::safedt_type_name,          &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS },        

   214

   215

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

   216

    /* SAFE version on left and right... */

   217

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

   218

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetime_type_name,     widen_entry::ok                 },

   219

    { &search_constant_type_c::safedate_type_name,      &search_constant_type_c::safedate_type_name,        &search_constant_type_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   220

    { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetod_type_name,      ANYTIME_OPER_DEPRECATION_STATUS },

   221

    { &search_constant_type_c::safetod_type_name,       &search_constant_type_c::safetod_type_name,         &search_constant_type_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   222

    { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safedt_type_name,       ANYTIME_OPER_DEPRECATION_STATUS },

   223

    { &search_constant_type_c::safedt_type_name,        &search_constant_type_c::safedt_type_name,          &search_constant_type_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },        

   224

   225

    { NULL, NULL, NULL, widen_entry::ok },

   226

};

   227

   228

   229

   230

   231

   232

   233

   234

const struct widen_entry widen_MUL_table[] = {

   235

#define __mul(TYPE)       \

   236

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   237

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   238

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   239

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   240

    __ANY_NUM(__mul)

   241

#undef __mul

   242

   243

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

   244

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

   245

    /*** Operations with TIME, DT and TOD... ***/

   246

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

   247

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

   248

#define __multime(TYPE)       \

   249

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   250

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   251

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   252

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS }, \

   253

    /* NOTE: the standard des not explicitly support the following semantics. However, since 'multiplication' is supposed to be commutative, we add it anyway... */                 \

   254

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   255

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::time_type_name,            &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   256

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safetime_type_name,        &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   257

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safetime_type_name,        &search_constant_type_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   258

    __ANY_NUM(__multime)

   259

#undef __multime

   260

   261

    { NULL, NULL, NULL, widen_entry::ok },

   262

};

   263

   264

   265

   266

   267

   268

const struct widen_entry widen_DIV_table[] = {

   269

#define __div(TYPE)       \

   270

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   271

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   272

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   273

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   274

    __ANY_NUM(__div)

   275

#undef __div

   276

   277

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

   278

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

   279

    /*** Operations with TIME, DT and TOD... ***/

   280

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

   281

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

   282

#define __divtime(TYPE)       \

   283

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   284

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   285

    { &search_constant_type_c::time_type_name,          &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::time_type_name,         ANYTIME_OPER_DEPRECATION_STATUS }, \

   286

    { &search_constant_type_c::safetime_type_name,      &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safetime_type_name,     ANYTIME_OPER_DEPRECATION_STATUS },

   287

    __ANY_NUM(__divtime)

   288

#undef __divtime

   289

   290

    { NULL, NULL, NULL, widen_entry::ok },

   291

 };

   292

   293

   294

   295

   296

const struct widen_entry widen_MOD_table[] = {

   297

#define __mod(TYPE)       \

   298

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   299

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   300

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   301

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   302

    __ANY_NUM(__mod)

   303

#undef __mod

   304

   305

    { NULL, NULL, NULL, widen_entry::ok },

   306

};

   307

   308

   309

   310

   311

const struct widen_entry widen_EXPT_table[] = {

   312

#define __expt(IN2TYPE, IN1TYPE)       \

   313

    { &search_constant_type_c::IN1TYPE##_type_name,        &search_constant_type_c::IN2TYPE##_type_name,          &search_constant_type_c::IN1TYPE##_type_name,       widen_entry::ok        }, \

   314

    { &search_constant_type_c::safe##IN1TYPE##_type_name,  &search_constant_type_c::IN2TYPE##_type_name,          &search_constant_type_c::IN1TYPE##_type_name,       widen_entry::ok        }, \

   315

    { &search_constant_type_c::IN1TYPE##_type_name,        &search_constant_type_c::safe##IN2TYPE##_type_name,    &search_constant_type_c::IN1TYPE##_type_name,       widen_entry::ok        }, \

   316

    { &search_constant_type_c::safe##IN1TYPE##_type_name,  &search_constant_type_c::safe##IN2TYPE##_type_name,    &search_constant_type_c::safe##IN1TYPE##_type_name, widen_entry::ok        },

   317

#define __IN2_anynum_(IN1_TYPENAME)   __ANY_NUM_1(__expt,IN1_TYPENAME)

   318

    __ANY_REAL(__IN2_anynum_)

   319

#undef __expt

   320

#undef __IN2_anynum_

   321

    { NULL, NULL, NULL, widen_entry::ok },

   322

};

   323

   324

   325

   326

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

   327

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

   328

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

   329

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

   330

/*******  TABLE 26: Standard bitwise Boolean functions  *******/

   331

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

   332

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

   333

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

   334

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

   335

/* table used by AND and ANDN operators, and and_expression */

   336

const struct widen_entry widen_AND_table[] = {

   337

#define __and(TYPE)       \

   338

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   339

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   340

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   341

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   342

    __ANY_BIT(__and)

   343

#undef __and

   344

   345

    { NULL, NULL, NULL, widen_entry::ok },

   346

};

   347

   348

/* table used by OR and ORN operators, and or_expression */

   349

const struct widen_entry widen_OR_table[] = {

   350

#define __or(TYPE)       \

   351

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   352

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   353

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   354

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   355

    __ANY_BIT(__or)

   356

#undef __or

   357

   358

    { NULL, NULL, NULL, widen_entry::ok },

   359

};

   360

   361

   362

/* table used by XOR and XORN operators, and xor_expression */

   363

const struct widen_entry widen_XOR_table[] = {

   364

#define __xor(TYPE)       \

   365

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   366

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   367

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::TYPE##_type_name,       widen_entry::ok                 }, \

   368

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safe##TYPE##_type_name, widen_entry::ok                 },

   369

    __ANY_BIT(__xor)

   370

#undef __xor

   371

   372

    { NULL, NULL, NULL, widen_entry::ok },

   373

};

   374

   375

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

   376

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

   377

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

   378

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

   379

/*******  TABLE 28: Standard comparison functions       *******/

   380

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

   381

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

   382

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

   383

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

   384

/* table used by GT, GE, EQ, LE, LT, and NE  operators, and equivalent ST expressions. */

   385

const struct widen_entry widen_CMP_table[] = {

   386

#define __cmp(TYPE)       \

   387

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::bool_type_name,         widen_entry::ok                 }, \

   388

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::TYPE##_type_name,          &search_constant_type_c::bool_type_name,         widen_entry::ok                 }, \

   389

    { &search_constant_type_c::TYPE##_type_name,        &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::bool_type_name,         widen_entry::ok                 }, \

   390

    { &search_constant_type_c::safe##TYPE##_type_name,  &search_constant_type_c::safe##TYPE##_type_name,    &search_constant_type_c::safebool_type_name,     widen_entry::ok                 },

   391

    __ANY_ELEMENTARY(__cmp)

   392

#undef __cmp

   393

   394

    { NULL, NULL, NULL, widen_entry::ok },

   395

};

   396

   397

   398

/* Search for a datatype inside a candidate_datatypes list.

   399

 * Returns: position of datatype in the list, or -1 if not found.

   400

 */

   401

int search_in_candidate_datatype_list(symbol_c *datatype, const std::vector <symbol_c *> &candidate_datatypes) {

   402

	if (NULL == datatype) 

   403

		return -1;

   404

   405

	for(unsigned int i = 0; i < candidate_datatypes.size(); i++)

   406

		if (is_type_equal(datatype, candidate_datatypes[i]))

   407

			return i;

   408

	/* Not found ! */

   409

	return -1;

   410

}

   411

   412

/* Remove a datatype inside a candidate_datatypes list.

   413

 * Returns: If successful it returns true, false otherwise.

   414

 */

   415

bool remove_from_candidate_datatype_list(symbol_c *datatype, std::vector <symbol_c *> &candidate_datatypes) {

   416

	int pos = search_in_candidate_datatype_list(datatype, candidate_datatypes);

   417

	if (pos < 0)

   418

		return false;

   419

   420

	candidate_datatypes.erase(candidate_datatypes.begin() + pos);

   421

	return true;

   422

}

   423

   424

   425

   426

/* Intersect two candidate_datatype_lists.

   427

 * Remove from list1 (origin, dest.) all elements that are not found in list2 (with).

   428

 * In essence, list1 will contain the result of the intersection of list1 with list2.

   429

 * In other words, modify list1 so it only contains the elelements that are simultaneously in list1 and list2!

   430

 */

   431

void intersect_candidate_datatype_list(symbol_c *list1 /*origin, dest.*/, symbol_c *list2 /*with*/) {

   432

	if ((NULL == list1) || (NULL == list2))

   433

		/* In principle, we should never call it with NULL values. Best to abort the compiler just in case! */

   434

		return;

   435

   436

	for(std::vector<symbol_c *>::iterator i = list1->candidate_datatypes.begin(); i < list1->candidate_datatypes.end(); ) {

   437

		/* Note that we do _not_ increment i in the for() loop!

   438

		 * When we erase an element from position i, a new element will take it's place, that must also be tested! 

   439

		 */

   440

		if (search_in_candidate_datatype_list(*i, list2->candidate_datatypes) < 0)

   441

			/* remove this element! This will change the value of candidate_datatypes.size() */

   442

			list1->candidate_datatypes.erase(i);

   443

		else i++;

   444

	}

   445

}

   446

   447

   448

   449

   450

/* intersect the candidate_datatype lists of all prev_il_intructions, and set the local candidate_datatype list to the result! */

   451

void intersect_prev_candidate_datatype_lists(il_instruction_c *symbol) {

   452

	if (symbol->prev_il_instruction.empty())

   453

		return;

   454

   455

	symbol->candidate_datatypes = symbol->prev_il_instruction[0]->candidate_datatypes;

   456

	for (unsigned int i = 1; i < symbol->prev_il_instruction.size(); i++) {

   457

		intersect_candidate_datatype_list(symbol /*origin, dest.*/, symbol->prev_il_instruction[i] /*with*/);

   458

	}  

   459

}

   460

   461

   462

   463

   464

/* A helper function... */

   465

bool is_ANY_ELEMENTARY_type(symbol_c *type_symbol) {

   466

  if (type_symbol == NULL) {return false;}

   467

  return is_ANY_MAGNITUDE_type(type_symbol)

   468

      || is_ANY_BIT_type      (type_symbol)

   469

      || is_ANY_STRING_type   (type_symbol)

   470

      || is_ANY_DATE_type     (type_symbol);

   471

}

   472

   473

/* A helper function... */

   474

bool is_ANY_SAFEELEMENTARY_type(symbol_c *type_symbol) {

   475

  if (type_symbol == NULL) {return false;}

   476

  return is_ANY_SAFEMAGNITUDE_type(type_symbol)

   477

      || is_ANY_SAFEBIT_type      (type_symbol)

   478

      || is_ANY_SAFESTRING_type   (type_symbol)

   479

      || is_ANY_SAFEDATE_type     (type_symbol);

   480

}

   481

   482

/* A helper function... */

   483

bool is_ANY_ELEMENTARY_compatible(symbol_c *type_symbol) {

   484

  if (type_symbol == NULL) {return false;}

   485

  /* NOTE: doing

   486

   *          return is_ANY_SAFEELEMENTARY_type() || is_ANY_ELEMENTARY_type()

   487

   *       is incorrect, as the literals would never be considered compatible...

   488

   */

   489

  return is_ANY_MAGNITUDE_compatible(type_symbol)

   490

      || is_ANY_BIT_compatible      (type_symbol)

   491

      || is_ANY_STRING_compatible   (type_symbol)

   492

      || is_ANY_DATE_compatible     (type_symbol);

   493