1 /*

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

     3  *

     4  *  Copyright (C) 2003-2012  Mario de Sousa (msousa@fe.up.pt)

     5  *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant

     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 /*

    26  * An IEC 61131-3 compiler.

    27  *

    28  * Based on the

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

    30  *

    31  */

    32 

    33 /* Determine the characteristics of a specific data type

    34  *  e.g., is it an enumeration, is it an array, is it ANY_INT, etc...

    35  *

    36  * The methods of this class may be passed either:

    37  *  - a data type declaration symbol_c, 

    38  *   OR

    39  *  - the name of a data type (identifier_c)

    40  *    In this case, we shall first serach for the basetype declaration using search_base_type_c, and then 

    41  *    run the normal process.

    42  */

    43 #include "absyntax_utils.hh"

    44 

    45 #include "../main.hh" // required for ERROR() and ERROR_MSG() macros.

    46 

    47 

    48 

    49 #include <typeinfo>  // required for typeid

    50 

    51 

    52 

    53 

    54 

    55 

    56 static search_base_type_c search_base_type;

    57 

    58 

    59 

    60 

    61 bool get_datatype_info_c::is_sfc_initstep(symbol_c *type_symbol) {

    62   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol); 

    63   if (typeid(*type_decl) == typeid(initial_step_c))                  {return true;}   /* INITIAL_STEP step_name ':' action_association_list END_STEP */  /* A pseudo data type! */

    64   return false;

    65 }

    66 

    67 

    68 

    69 

    70 

    71 bool get_datatype_info_c::is_sfc_step(symbol_c *type_symbol) {

    72   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol); 

    73   if (typeid(*type_decl) == typeid(initial_step_c))                  {return true;}   /* INITIAL_STEP step_name ':' action_association_list END_STEP */  /* A pseudo data type! */

    74   if (typeid(*type_decl) == typeid(        step_c))                  {return true;}   /*         STEP step_name ':' action_association_list END_STEP */  /* A pseudo data type! */

    75   return false;

    76 }

    77 

    78 

    79 

    80 

    81 bool get_datatype_info_c::is_function_block(symbol_c *type_symbol) {

    82   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol); 

    83   if (typeid(*type_decl) == typeid(function_block_declaration_c))    {return true;}   /*  FUNCTION_BLOCK derived_function_block_name io_OR_other_var_declarations function_block_body END_FUNCTION_BLOCK */

    84   return false;

    85 }

    86 

    87 

    88 

    89 

    90 

    91 bool get_datatype_info_c::is_subrange(symbol_c *type_symbol) {

    92   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol); /* NOTE: will work correctly once we update the way search_base_type_c works, by adding a new search_effective_type:c */

    93   

    94   if (typeid(*type_decl) == typeid(subrange_type_declaration_c))     {return true;}   /*  subrange_type_name ':' subrange_spec_init */

    95   if (typeid(*type_decl) == typeid(subrange_spec_init_c))            {return true;}   /* subrange_specification ASSIGN signed_integer */

    96   if (typeid(*type_decl) == typeid(subrange_specification_c))        {return true;}   /*  integer_type_name '(' subrange')' */

    97     

    98   if (typeid(*type_decl) == typeid(subrange_c))                      {ERROR;}         /*  signed_integer DOTDOT signed_integer */

    99   return false;

   100 }

   101 

   102 

   103 

   104 

   105 

   106 bool get_datatype_info_c::is_enumerated(symbol_c *type_symbol) {

   107   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol);

   108   

   109   if (typeid(*type_decl) == typeid(enumerated_type_declaration_c))   {return true;}   /*  enumerated_type_name ':' enumerated_spec_init */

   110   if (typeid(*type_decl) == typeid(enumerated_spec_init_c))          {return true;}   /* enumerated_specification ASSIGN enumerated_value */

   111   if (typeid(*type_decl) == typeid(enumerated_value_list_c))         {return true;}   /* enumerated_value_list ',' enumerated_value */        /* once we change the way we handle enums, this will probably become an ERROR! */

   112   

   113   if (typeid(*type_decl) == typeid(enumerated_value_c))              {ERROR;}         /* enumerated_type_name '#' identifier */

   114   return false;

   115 }

   116 

   117 

   118 

   119 

   120 

   121 bool get_datatype_info_c::is_array(symbol_c *type_symbol) {

   122   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol);

   123   

   124   if (typeid(*type_decl) == typeid(array_type_declaration_c))        {return true;}   /*  identifier ':' array_spec_init */

   125   if (typeid(*type_decl) == typeid(array_spec_init_c))               {return true;}   /* array_specification [ASSIGN array_initialization} */

   126   if (typeid(*type_decl) == typeid(array_specification_c))           {return true;}   /* ARRAY '[' array_subrange_list ']' OF non_generic_type_name */

   127   

   128   if (typeid(*type_decl) == typeid(array_subrange_list_c))           {ERROR;}         /* array_subrange_list ',' subrange */

   129   if (typeid(*type_decl) == typeid(array_initial_elements_list_c))   {ERROR;}         /* array_initialization:  '[' array_initial_elements_list ']' */  /* array_initial_elements_list ',' array_initial_elements */

   130   if (typeid(*type_decl) == typeid(array_initial_elements_c))        {ERROR;}         /* integer '(' [array_initial_element] ')' */

   131   return false;

   132 }

   133 

   134 

   135 

   136 

   137 

   138 bool get_datatype_info_c::is_structure(symbol_c *type_symbol) {

   139   symbol_c *type_decl = search_base_type.get_basetype_decl(type_symbol);

   140   

   141   if (typeid(*type_decl) == typeid(structure_type_declaration_c))              {return true;}   /*  structure_type_name ':' structure_specification */

   142   if (typeid(*type_decl) == typeid(initialized_structure_c))                   {return true;}   /* structure_type_name ASSIGN structure_initialization */

   143   if (typeid(*type_decl) == typeid(structure_element_declaration_list_c))      {return true;}   /* structure_declaration:  STRUCT structure_element_declaration_list END_STRUCT */ /* structure_element_declaration_list structure_element_declaration ';' */

   144   

   145   if (typeid(*type_decl) == typeid(structure_element_declaration_c))           {ERROR;}         /*  structure_element_name ':' *_spec_init */

   146   if (typeid(*type_decl) == typeid(structure_element_initialization_list_c))   {ERROR;}         /* structure_initialization: '(' structure_element_initialization_list ')' */  /* structure_element_initialization_list ',' structure_element_initialization */

   147   if (typeid(*type_decl) == typeid(structure_element_initialization_c))        {ERROR;}         /*  structure_element_name ASSIGN value */

   148   return false;

   149 }

   150 

   151 

   152 

   153 

   154 

   155 

   156 

   157 

   158 

   159 

   160 bool get_datatype_info_c::is_ANY_ELEMENTARY(symbol_c *type_symbol) {

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

   162   if (is_ANY_MAGNITUDE(type_symbol))                           {return true;}

   163   if (is_ANY_BIT      (type_symbol))                           {return true;}

   164   if (is_ANY_STRING   (type_symbol))                           {return true;}

   165   if (is_ANY_DATE     (type_symbol))                           {return true;}

   166   return false;

   167 }

   168 

   169 

   170 bool get_datatype_info_c::is_ANY_SAFEELEMENTARY(symbol_c *type_symbol) {

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

   172   if (is_ANY_SAFEMAGNITUDE(type_symbol))                       {return true;}

   173   if (is_ANY_SAFEBIT      (type_symbol))                       {return true;}

   174   if (is_ANY_SAFESTRING   (type_symbol))                       {return true;}

   175   if (is_ANY_SAFEDATE     (type_symbol))                       {return true;}

   176   return false;

   177 }

   178 

   179 

   180 bool get_datatype_info_c::is_ANY_ELEMENTARY_compatible(symbol_c *type_symbol) {

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

   182   if (is_ANY_ELEMENTARY    (type_symbol))                      {return true;}

   183   if (is_ANY_SAFEELEMENTARY(type_symbol))                      {return true;}

   184   return false;

   185 }

   186 

   187 

   188 

   189 

   190 

   191 

   192 

   193 bool get_datatype_info_c::is_ANY_MAGNITUDE(symbol_c *type_symbol) {

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

   195   if (typeid(*type_symbol) == typeid(time_type_name_c))        {return true;}

   196   if (is_ANY_NUM(type_symbol))                                 {return true;}

   197   return false;

   198 }

   199 

   200 

   201 bool get_datatype_info_c::is_ANY_SAFEMAGNITUDE(symbol_c *type_symbol) {

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

   203   if (typeid(*type_symbol) == typeid(safetime_type_name_c))    {return true;}

   204   if (is_ANY_SAFENUM(type_symbol))                             {return true;}

   205   return false;

   206 }

   207 

   208 

   209 bool get_datatype_info_c::is_ANY_MAGNITUDE_compatible(symbol_c *type_symbol) {

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

   211   if (is_ANY_MAGNITUDE    (type_symbol))                       {return true;}

   212   if (is_ANY_SAFEMAGNITUDE(type_symbol))                       {return true;}

   213   return false;

   214 }

   215 

   216 

   217 

   218 

   219 

   220 

   221 

   222 bool get_datatype_info_c::is_ANY_signed_MAGNITUDE(symbol_c *type_symbol) {

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

   224   if (typeid(*type_symbol) == typeid(time_type_name_c))        {return true;}

   225   if (is_ANY_signed_NUM(type_symbol))                          {return true;}

   226   return false;

   227 }

   228 

   229 

   230 bool get_datatype_info_c::is_ANY_signed_SAFEMAGNITUDE(symbol_c *type_symbol) {

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

   232   if (typeid(*type_symbol) == typeid(safetime_type_name_c))    {return true;}

   233   return is_ANY_signed_SAFENUM(type_symbol);

   234 }

   235 

   236 

   237 bool get_datatype_info_c::is_ANY_signed_MAGNITUDE_compatible(symbol_c *type_symbol) {

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

   239   if (is_ANY_signed_MAGNITUDE    (type_symbol))                {return true;}

   240   if (is_ANY_signed_SAFEMAGNITUDE(type_symbol))                {return true;}

   241   return false;

   242 }

   243 

   244 

   245 

   246 

   247 

   248 

   249 

   250 bool get_datatype_info_c::is_ANY_NUM(symbol_c *type_symbol) {

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

   252   if (is_ANY_REAL(type_symbol))                                {return true;}

   253   if (is_ANY_INT (type_symbol))                                {return true;}

   254   return false;

   255 }

   256 

   257 

   258 bool get_datatype_info_c::is_ANY_SAFENUM(symbol_c *type_symbol) {

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

   260   if (is_ANY_SAFEREAL(type_symbol))                            {return true;}

   261   if (is_ANY_SAFEINT (type_symbol))                            {return true;}

   262 }

   263 

   264 

   265 bool get_datatype_info_c::is_ANY_NUM_compatible(symbol_c *type_symbol) {

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

   267   if (is_ANY_NUM    (type_symbol))                             {return true;}

   268   if (is_ANY_SAFENUM(type_symbol))                             {return true;}

   269   return false;

   270 }

   271 

   272 

   273 

   274 

   275 

   276 

   277 

   278 bool get_datatype_info_c::is_ANY_signed_NUM(symbol_c *type_symbol) {

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

   280   if (is_ANY_REAL      (type_symbol))                          {return true;}

   281   if (is_ANY_signed_INT(type_symbol))                          {return true;}

   282   return false;

   283 }

   284 

   285 

   286 bool get_datatype_info_c::is_ANY_signed_SAFENUM(symbol_c *type_symbol) {

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

   288   if (is_ANY_SAFEREAL      (type_symbol))                      {return true;}

   289   if (is_ANY_signed_SAFEINT(type_symbol))                      {return true;}

   290 }

   291 

   292 

   293 bool get_datatype_info_c::is_ANY_signed_NUM_compatible(symbol_c *type_symbol) {

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

   295   if (is_ANY_signed_NUM    (type_symbol))                      {return true;}

   296   if (is_ANY_signed_SAFENUM(type_symbol))                      {return true;}

   297   return false;

   298 }

   299 

   300 

   301 

   302 

   303 

   304 

   305 

   306 bool get_datatype_info_c::is_ANY_DATE(symbol_c *type_symbol) {

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

   308   if (typeid(*type_symbol) == typeid(date_type_name_c))        {return true;}

   309   if (typeid(*type_symbol) == typeid(tod_type_name_c))         {return true;}

   310   if (typeid(*type_symbol) == typeid(dt_type_name_c))          {return true;}

   311   return false;

   312 }

   313 

   314 

   315 bool get_datatype_info_c::is_ANY_SAFEDATE(symbol_c *type_symbol) {

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

   317   if (typeid(*type_symbol) == typeid(safedate_type_name_c))    {return true;}

   318   if (typeid(*type_symbol) == typeid(safetod_type_name_c))     {return true;}

   319   if (typeid(*type_symbol) == typeid(safedt_type_name_c))      {return true;}

   320   return false;

   321 }

   322 

   323 

   324 bool get_datatype_info_c::is_ANY_DATE_compatible(symbol_c *type_symbol) {

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

   326   if (is_ANY_DATE    (type_symbol))                            {return true;}

   327   if (is_ANY_SAFEDATE(type_symbol))                            {return true;}

   328   return false;

   329 }

   330 

   331 

   332 

   333 

   334 

   335 

   336 

   337 bool get_datatype_info_c::is_ANY_STRING(symbol_c *type_symbol) {

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

   339   if (typeid(*type_symbol) == typeid(string_type_name_c))      {return true;}

   340   if (typeid(*type_symbol) == typeid(wstring_type_name_c))     {return true;}

   341   return false;

   342 }

   343 

   344 

   345 bool get_datatype_info_c::is_ANY_SAFESTRING(symbol_c *type_symbol) {

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

   347   if (typeid(*type_symbol) == typeid(safestring_type_name_c))  {return true;}

   348   if (typeid(*type_symbol) == typeid(safewstring_type_name_c)) {return true;}

   349   return false;

   350 }

   351 

   352 

   353 bool get_datatype_info_c::is_ANY_STRING_compatible(symbol_c *type_symbol) {

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

   355   if (is_ANY_STRING    (type_symbol))                          {return true;}

   356   if (is_ANY_SAFESTRING(type_symbol))                          {return true;}

   357   return false;

   358 }

   359 

   360 

   361 

   362 

   363 

   364 

   365 

   366 bool get_datatype_info_c::is_ANY_INT(symbol_c *type_symbol) {

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

   368   if (is_ANY_signed_INT  (type_symbol))                        {return true;}

   369   if (is_ANY_unsigned_INT(type_symbol))                        {return true;}

   370   return false;

   371 }

   372 

   373 

   374 bool get_datatype_info_c::is_ANY_SAFEINT(symbol_c *type_symbol) {

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

   376   if (is_ANY_signed_SAFEINT  (type_symbol))                    {return true;}

   377   if (is_ANY_unsigned_SAFEINT(type_symbol))                    {return true;}

   378   return false;

   379 }

   380 

   381 

   382 bool get_datatype_info_c::is_ANY_INT_compatible(symbol_c *type_symbol) {

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

   384   if (is_ANY_INT    (type_symbol))                             {return true;}

   385   if (is_ANY_SAFEINT(type_symbol))                             {return true;}

   386   return false;

   387 }

   388 

   389 

   390 

   391 

   392 

   393 

   394 bool get_datatype_info_c::is_ANY_signed_INT(symbol_c *type_symbol) {

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

   396   if (typeid(*type_symbol) == typeid(sint_type_name_c))        {return true;}

   397   if (typeid(*type_symbol) == typeid(int_type_name_c))         {return true;}

   398   if (typeid(*type_symbol) == typeid(dint_type_name_c))        {return true;}

   399   if (typeid(*type_symbol) == typeid(lint_type_name_c))        {return true;}

   400   return false;

   401 }

   402 

   403 

   404 bool get_datatype_info_c::is_ANY_signed_SAFEINT(symbol_c *type_symbol) {

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

   406   if (typeid(*type_symbol) == typeid(safesint_type_name_c))    {return true;}

   407   if (typeid(*type_symbol) == typeid(safeint_type_name_c))     {return true;}

   408   if (typeid(*type_symbol) == typeid(safedint_type_name_c))    {return true;}

   409   if (typeid(*type_symbol) == typeid(safelint_type_name_c))    {return true;}

   410   return false;

   411 }

   412 

   413 

   414 bool get_datatype_info_c::is_ANY_signed_INT_compatible(symbol_c *type_symbol) {

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

   416   if (is_ANY_signed_INT    (type_symbol))                      {return true;}

   417   if (is_ANY_signed_SAFEINT(type_symbol))                      {return true;}

   418   return false;

   419 }

   420 

   421 

   422 

   423 

   424 

   425 

   426 

   427 

   428 

   429 bool get_datatype_info_c::is_ANY_unsigned_INT(symbol_c *type_symbol) {

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

   431   if (typeid(*type_symbol) == typeid(usint_type_name_c))       {return true;}

   432   if (typeid(*type_symbol) == typeid(uint_type_name_c))        {return true;}

   433   if (typeid(*type_symbol) == typeid(udint_type_name_c))       {return true;}

   434   if (typeid(*type_symbol) == typeid(ulint_type_name_c))       {return true;}

   435   return false;

   436 }

   437 

   438 

   439 bool get_datatype_info_c::is_ANY_unsigned_SAFEINT(symbol_c *type_symbol) {

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

   441   if (typeid(*type_symbol) == typeid(safeusint_type_name_c))   {return true;}

   442   if (typeid(*type_symbol) == typeid(safeuint_type_name_c))    {return true;}

   443   if (typeid(*type_symbol) == typeid(safeudint_type_name_c))   {return true;}

   444   if (typeid(*type_symbol) == typeid(safeulint_type_name_c))   {return true;}

   445   return false;

   446 }

   447 

   448 

   449 bool get_datatype_info_c::is_ANY_unsigned_INT_compatible(symbol_c *type_symbol) {

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

   451   if (is_ANY_unsigned_INT    (type_symbol))                    {return true;}

   452   if (is_ANY_unsigned_SAFEINT(type_symbol))                    {return true;}

   453   return false;

   454 }

   455 

   456 

   457 

   458 

   459 

   460 

   461 

   462 

   463 

   464 bool get_datatype_info_c::is_ANY_REAL(symbol_c *type_symbol) {

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

   466   if (typeid(*type_symbol) == typeid(real_type_name_c))        {return true;}

   467   if (typeid(*type_symbol) == typeid(lreal_type_name_c))       {return true;}

   468   return false;

   469 }

   470 

   471 

   472 bool get_datatype_info_c::is_ANY_SAFEREAL(symbol_c *type_symbol) {

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

   474   if (typeid(*type_symbol) == typeid(safereal_type_name_c))    {return true;}

   475   if (typeid(*type_symbol) == typeid(safelreal_type_name_c))   {return true;}

   476   return false;

   477 }

   478 

   479 

   480 bool get_datatype_info_c::is_ANY_REAL_compatible(symbol_c *type_symbol) {

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

   482   if (is_ANY_REAL    (type_symbol))                            {return true;}

   483   if (is_ANY_SAFEREAL(type_symbol))                            {return true;}

   484   return false;

   485 }

   486 

   487 

   488 

   489 

   490 

   491 

   492 

   493 

   494 bool get_datatype_info_c::is_ANY_nBIT(symbol_c *type_symbol) {

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

   496   if (typeid(*type_symbol) == typeid(byte_type_name_c))        {return true;}

   497   if (typeid(*type_symbol) == typeid(word_type_name_c))        {return true;}

   498   if (typeid(*type_symbol) == typeid(dword_type_name_c))       {return true;}

   499   if (typeid(*type_symbol) == typeid(lword_type_name_c))       {return true;}

   500   return false;

   501 }

   502 

   503 

   504 bool get_datatype_info_c::is_ANY_SAFEnBIT(symbol_c *type_symbol) {

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

   506   if (typeid(*type_symbol) == typeid(safebyte_type_name_c))    {return true;}

   507   if (typeid(*type_symbol) == typeid(safeword_type_name_c))    {return true;}

   508   if (typeid(*type_symbol) == typeid(safedword_type_name_c))   {return true;}

   509   if (typeid(*type_symbol) == typeid(safelword_type_name_c))   {return true;}

   510   return false;

   511 }

   512 

   513 

   514 bool get_datatype_info_c::is_ANY_nBIT_compatible(symbol_c *type_symbol) {

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

   516   if (is_ANY_nBIT    (type_symbol))                            {return true;}

   517   if (is_ANY_SAFEnBIT(type_symbol))                            {return true;}

   518   return false;

   519 }

   520 

   521 

   522 

   523 

   524 

   525 

   526 

   527 

   528 

   529 

   530 bool get_datatype_info_c::is_BOOL(symbol_c *type_symbol) {

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

   532   if (typeid(*type_symbol) == typeid(bool_type_name_c))        {return true;}

   533   return false;

   534 }

   535 

   536 

   537 bool get_datatype_info_c::is_SAFEBOOL(symbol_c *type_symbol) {

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

   539   if (typeid(*type_symbol) == typeid(safebool_type_name_c))    {return true;}

   540   return false;

   541 }

   542 

   543 

   544 bool get_datatype_info_c::is_BOOL_compatible(symbol_c *type_symbol) {

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

   546   if (is_BOOL    (type_symbol))                                {return true;}

   547   if (is_SAFEBOOL(type_symbol))                                {return true;}

   548   return false;

   549 }

   550 

   551 

   552 

   553 

   554 

   555 

   556 

   557 

   558 

   559 bool get_datatype_info_c::is_ANY_BIT(symbol_c *type_symbol) {

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

   561   if (is_BOOL    (type_symbol))                                {return true;}

   562   if (is_ANY_nBIT(type_symbol))                                {return true;}

   563   return false;

   564 }

   565 

   566 

   567 bool get_datatype_info_c::is_ANY_SAFEBIT(symbol_c *type_symbol) {

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

   569   if (is_SAFEBOOL    (type_symbol))                            {return true;}

   570   if (is_ANY_SAFEnBIT(type_symbol))                            {return true;}

   571   return false;

   572 }

   573 

   574 

   575 bool get_datatype_info_c::is_ANY_BIT_compatible(symbol_c *type_symbol) {

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

   577   if (is_ANY_BIT    (type_symbol))                             {return true;}

   578   if (is_ANY_SAFEBIT(type_symbol))                             {return true;}

   579   return false;

   580 }

   581 

   582 

   583