The Ecere SDK - sdk/blob - ecere/src/sys/JSON.ec

   1 namespace sys;
   2
   3 import "System"
   4 import "Array"
   5
   6 default:
   7 __attribute__((unused)) static void UnusedFunction()
   8 {
   9    int a;
  10    a.OnGetDataFromString(null);
  11    a.OnGetString(null, 0, 0);
  12    a.OnFree();
  13 }
  14 extern int __ecereVMethodID_class_OnGetDataFromString;
  15 extern int __ecereVMethodID_class_OnGetString;
  16 extern int __ecereVMethodID_class_OnFree;
  17 private:
  18
  19 public enum JSONResult { syntaxError, success, typeMismatch, noItem };
  20
  21 public enum SetBool : uint
  22 {
  23    unset, false, true;
  24
  25    /*public property bool     // NOT WORKING!
  26    {
  27       set { return value ? true : false; }
  28       get { return (this == true); }
  29    }*/
  30 };
  31
  32
  33 public class JSONParser
  34 {
  35 public:
  36    File f;
  37    char ch;
  38
  39    void SkipEmpty()
  40    {
  41       while(!f.Eof() && (!ch || ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t'))
  42       {
  43          f.Getc(&ch);
  44       }
  45    }
  46
  47    JSONResult GetValue(Class type, DataValue value)
  48    {
  49       JSONResult result = syntaxError;
  50       ch = 0;
  51       SkipEmpty();
  52       if(ch == '\"')
  53       {
  54          String string;
  55          result = GetString(&string);
  56          if(result)
  57          {
  58             Property prop;
  59             if(type && (!strcmp(type.name, "String") || !strcmp(type.dataTypeString, "char *")))
  60             {
  61                value.p = string;
  62             }
  63             else if(type && (type.type == enumClass || type.type == unitClass))
  64             {
  65                if(((bool (*)(void *, void *, const char *))(void *)type._vTbl[__ecereVMethodID_class_OnGetDataFromString])(type, &value.i, string))
  66                   result = success;
  67                else
  68                   result = typeMismatch;
  69                delete string;
  70             }
  71             else if(type && (prop = eClass_FindProperty(type, "String", type.module)))
  72             {
  73                // TOFIX: Add more conversion property support... Expecting void * compatible here
  74                value.p = ((void *(*)())(void *)prop.Set)(string);
  75                result = success;
  76                delete string;
  77             }
  78             else if(type && (type.type == structClass))
  79             {
  80                if(((bool (*)(void *, void *, const char *))(void *)type._vTbl[__ecereVMethodID_class_OnGetDataFromString])(type, value.p, string))
  81                   result = success;
  82                else
  83                   result = typeMismatch;
  84                delete string;
  85             }
  86             else
  87             {
  88                delete string;
  89                result = typeMismatch;
  90             }
  91          }
  92       }
  93       else if(ch == '[')
  94       {
  95          Container array;
  96          if(type && eClass_IsDerived(type, class(Map)))
  97          {
  98             result = GetMap(type, (Map *)&array);
  99          }
 100          else
 101             result = GetArray(type, &array);
 102
 103          if(result == success && type && eClass_IsDerived(type, class(Container)))
 104          {
 105             value.p = array;
 106          }
 107          else
 108          {
 109             if(array)
 110                array.Free();
 111             delete array;
 112             if(result != success)
 113                result = typeMismatch;
 114          }
 115       }
 116       else if(ch == '-' || isdigit(ch))
 117       {
 118          result = GetNumber(type, value);
 119       }
 120       else if(ch == '{')
 121       {
 122          void * object = value.p;
 123          result = GetObject(type, &object);
 124          if(result)
 125          {
 126             if(type && type.type == structClass);
 127             else if(type && (type.type == normalClass || type.type == noHeadClass || type.type == bitClass))
 128             {
 129                value.p = object;
 130             }
 131             else
 132             {
 133                result = typeMismatch;
 134                if(type)
 135                   ((void (*)(void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnFree])(type, object);
 136             }
 137          }
 138       }
 139       else if(isalpha(ch))
 140       {
 141          char buffer[256];
 142          int c = 0;
 143          while(c < sizeof(buffer)-1 && isalpha(ch))
 144          {
 145             buffer[c++] = ch;
 146             if(!f.Getc(&ch)) break;
 147          }
 148          buffer[c] = 0;
 149          result = success;
 150
 151          if(type)
 152          {
 153             if(!strcmp(type.name, "bool"))
 154             {
 155                if(!strcmpi(buffer, "false")) value.i = 0;
 156                else if(!strcmpi(buffer, "true")) value.i = 1;
 157                else
 158                   result = typeMismatch;
 159             }
 160             else if(!strcmp(type.name, "SetBool"))
 161             {
 162                if(!strcmpi(buffer, "false")) value.i = SetBool::false;
 163                else if(!strcmpi(buffer, "true")) value.i = SetBool::true;
 164                else
 165                   result = typeMismatch;
 166             }
 167             else if(!strcmpi(buffer, "null"))
 168             {
 169                value.p = 0;
 170             }
 171             else
 172                result = typeMismatch;
 173          }
 174          else
 175             result = typeMismatch;
 176       }
 177       else if(ch == '}' || ch == ']')
 178          result = noItem;
 179       return result;
 180    }
 181
 182    JSONResult GetArray(Class type, Container * array)
 183    {
 184       JSONResult result = syntaxError;
 185       SkipEmpty();
 186       *array = null;
 187       if(ch == '[')
 188       {
 189          *array = eInstance_New(type);
 190          result = success;
 191          while(result)
 192          {
 193             DataValue value { };
 194             Class arrayType = null;
 195             JSONResult itemResult;
 196
 197             if(eClass_IsDerived(type, class(Container)))
 198             {
 199                arrayType = type.templateArgs[0].dataTypeClass;
 200             }
 201
 202             itemResult = GetValue(arrayType, value);
 203             if(itemResult == success)
 204             {
 205                // TODO: Verify the matching between template type and uint64
 206                uint64 t;
 207                if(arrayType.type == structClass)
 208                {
 209                   t = (uint64)(uintptr)value.p;
 210                }
 211                else if(arrayType == class(double) || !strcmp(arrayType.dataTypeString, "double"))
 212                {
 213                   t = value.ui64; //*(uint64 *)&value.d;
 214                }
 215                else if(arrayType == class(float) || !strcmp(arrayType.dataTypeString, "float"))
 216                {
 217                   t = value.ui; //f*(uint *)&value.f;
 218                }
 219                else if(arrayType.typeSize == sizeof(int64) || !strcmp(arrayType.dataTypeString, "int64") ||
 220                   !strcmp(arrayType.dataTypeString, "unsigned int64") || !strcmp(arrayType.dataTypeString, "uint64"))
 221                {
 222                   t = value.ui64;
 223                }
 224                else if(arrayType.typeSize == sizeof(int) || !strcmp(arrayType.dataTypeString, "int") ||
 225                   !strcmp(arrayType.dataTypeString, "unsigned int") || !strcmp(arrayType.dataTypeString, "uint"))
 226                {
 227                   t = value.i;
 228                }
 229                else if(arrayType.typeSize == sizeof(short int) || !strcmp(arrayType.dataTypeString, "short") ||
 230                   !strcmp(arrayType.dataTypeString, "unsigned short") || !strcmp(arrayType.dataTypeString, "uint16") ||
 231                   !strcmp(arrayType.dataTypeString, "int16"))
 232                {
 233                   t = value.s;
 234                }
 235                else if(arrayType.typeSize == sizeof(byte) || !strcmp(arrayType.dataTypeString, "char") ||
 236                   !strcmp(arrayType.dataTypeString, "unsigned char") || !strcmp(arrayType.dataTypeString, "byte"))
 237                {
 238                   t = value.c;
 239                }
 240                else
 241                {
 242                   t = (uint64)(uintptr)value.p;
 243                }
 244                ((void *(*)(void *, uint64))(void *)array->Add)(*array, t);
 245             }
 246             else
 247             {
 248                if(itemResult == typeMismatch)
 249                {
 250                   if(arrayType)
 251                      PrintLn("Warning: Incompatible value for array value, expected ", (String)arrayType.name);
 252                }
 253                else if(itemResult == noItem)
 254                   result = success;
 255                else
 256                   result = itemResult;
 257             }
 258
 259             if(result != syntaxError)
 260             {
 261                if(ch != ']' && ch != ',')
 262                {
 263                   ch = 0;
 264                   SkipEmpty();
 265                }
 266                if(ch == ']')
 267                {
 268                   break;
 269                }
 270                else if(ch != ',')
 271                   result = syntaxError;
 272             }
 273          }
 274       }
 275       ch = 0;
 276       return result;
 277    }
 278
 279    JSONResult GetMap(Class type, Map * map)
 280    {
 281       JSONResult result = syntaxError;
 282       SkipEmpty();
 283       *map = null;
 284       if(ch == '[')
 285       {
 286          Class mapNodeType = type.templateArgs[0].dataTypeClass;
 287          Class keyType = mapNodeType.templateArgs[0].dataTypeClass;
 288          Property keyProp = null;
 289          if(keyType && !strcmp(keyType.dataTypeString, "char *"))
 290             keyProp = eClass_FindProperty(mapNodeType, "key", mapNodeType.module);
 291
 292          *map = eInstance_New(type);
 293          result = success;
 294
 295          while(result)
 296          {
 297             DataValue value { };
 298
 299             JSONResult itemResult;
 300
 301             itemResult = GetValue(mapNodeType, value);
 302             if(itemResult == success)
 303             {
 304                String s = keyProp ? ((void * (*)(void *))(void *)keyProp.Get)(value.p) : null;
 305                ((void *(*)(void *, uint64))(void *)map->Add)(*map, (uint64)(uintptr)value.p);
 306                // Must free String keys here
 307                delete s;
 308             }
 309             else
 310             {
 311                if(itemResult == typeMismatch)
 312                {
 313                   if(mapNodeType)
 314                      PrintLn("Warning: Incompatible value for array value, expected ", (String)mapNodeType.name);
 315                }
 316                else if(itemResult == noItem)
 317                   result = success;
 318                else
 319                   result = itemResult;
 320             }
 321
 322             if(result != syntaxError)
 323             {
 324                if(ch != ']' && ch != ',')
 325                {
 326                   ch = 0;
 327                   SkipEmpty();
 328                }
 329                if(ch == ']')
 330                {
 331                   break;
 332                }
 333                else if(ch != ',')
 334                   result = syntaxError;
 335             }
 336          }
 337       }
 338       ch = 0;
 339       return result;
 340    }
 341
 342    JSONResult GetString(String * string)
 343    {
 344       JSONResult result = syntaxError;
 345       Array<char> buffer { minAllocSize = 256 };
 346       bool escaped = false;
 347
 348       *string = null;
 349       SkipEmpty();
 350       if(ch == '\"')
 351       {
 352          while(f.Getc(&ch))
 353          {
 354             if(ch == '\\' && !escaped)
 355                escaped = true;
 356             else
 357             {
 358                if(escaped)
 359                {
 360                   if(ch == 'b') ch = '\b';
 361                   else if(ch == 'f') ch = '\f';
 362                   else if(ch == 'n') ch = '\n';
 363                   else if(ch == 'r') ch = '\r';
 364                   else if(ch == 't') ch = '\t';
 365                   else if(ch == 'u')
 366                   {
 367                      // SKIP FOR NOW...
 368                      char unicode[4];
 369                      f.Getc(&unicode[0]);
 370                      f.Getc(&unicode[1]);
 371                      f.Getc(&unicode[2]);
 372                      f.Getc(&unicode[3]);
 373                   }
 374                   escaped = false;
 375                }
 376                else if(ch == '\"')
 377                {
 378                   break;
 379                }
 380                buffer.Add(ch);
 381                if(buffer.minAllocSize < buffer.count)
 382                   buffer.minAllocSize *= 2;
 383             }
 384          }
 385          buffer.Add(0);
 386          *string = CopyString(buffer.array);
 387          result = success;
 388       }
 389       delete buffer;
 390       if(ch != ',' && ch != '}')
 391          ch = 0;
 392       return result;
 393    }
 394
 395    public JSONResult GetObject(Class objectType, void ** object)
 396    {
 397       JSONResult result = syntaxError;
 398       if(!objectType || objectType.type != structClass)
 399          *object = null;
 400       SkipEmpty();
 401       if(ch == '{')
 402       {
 403          Class mapKeyClass = null, mapDataClass = null;
 404
 405          if(objectType && objectType.templateClass && eClass_IsDerived(objectType.templateClass, class(MapNode)))
 406          {
 407             mapKeyClass = objectType.templateArgs[0].dataTypeClass;
 408             mapDataClass = objectType.templateArgs[2].dataTypeClass;
 409          }
 410
 411          result = success;
 412          if(objectType && (objectType.type == noHeadClass || objectType.type == normalClass))
 413          {
 414             *object = eInstance_New(objectType);
 415          }
 416          else if(objectType && objectType.type != structClass)
 417          {
 418             *object = eSystem_New(objectType.typeSize);
 419          }
 420
 421          while(result)
 422          {
 423             String string;
 424             ch = 0;
 425             if(GetString(&string))
 426             {
 427                DataMember member = null;
 428                Property prop = null;
 429                Class type = null;
 430                bool isKey = false;
 431
 432                if(objectType)
 433                {
 434                   string[0] = (char)tolower(string[0]);
 435                   if(mapKeyClass && !strcmp(string, "key"))
 436                   {
 437                      prop = eClass_FindProperty(objectType, "key", objectType.module);
 438                      type = mapKeyClass;
 439                      isKey = true;
 440                   }
 441                   else if(mapDataClass && !strcmp(string, "value"))
 442                   {
 443                      prop = eClass_FindProperty(objectType, "value", objectType.module);
 444                      type = mapDataClass;
 445                   }
 446                   else
 447                   {
 448                      member = eClass_FindDataMember(objectType, string, objectType.module, null, null);
 449                      if(member)
 450                      {
 451                         type = eSystem_FindClass(__thisModule, member.dataTypeString);
 452                         if(!type)
 453                            type = eSystem_FindClass(__thisModule.application, member.dataTypeString);
 454                      }
 455                      else if(!member)
 456                      {
 457                         prop = eClass_FindProperty(objectType, string, objectType.module);
 458                         if(prop)
 459                         {
 460                            type = eSystem_FindClass(__thisModule, prop.dataTypeString);
 461                            if(!type)
 462                               type = eSystem_FindClass(__thisModule.application, prop.dataTypeString);
 463                         }
 464                         else
 465                            PrintLn("Warning: member ", string, " not found in class ", (String)objectType.name);
 466                      }
 467                   }
 468                }
 469                // Find Member in Object Class
 470                {
 471                   DataValue value { };
 472
 473                   if(type && type.type == structClass)
 474                   {
 475                      value.p = (byte *)*object + member._class.offset + member.offset;
 476                   }
 477                   ch = 0;
 478                   SkipEmpty();
 479                   if(ch == ':')
 480                   {
 481                      JSONResult itemResult = GetValue(type, value);
 482                      if(itemResult != syntaxError)
 483                      {
 484                         if(prop || member)
 485                         {
 486                            if(!type)
 487                            {
 488                               PrintLn("warning: Unresolved data type ", member ? (String)member.dataTypeString : (String)prop.dataTypeString);
 489                            }
 490                            else if(itemResult == success)
 491                            {
 492                               // Set value
 493                               if(member)
 494                               {
 495                                  // TOFIX: How to swiftly handle classes with base data type?
 496                                  if(type.type == structClass)
 497                                     ;
 498                                  else if(type.type == normalClass || type.type == noHeadClass)
 499                                  {
 500                                     void ** ptr = (void**)((byte *)*object + member._class.offset + member.offset);
 501                                     if(eClass_IsDerived(type, class(Container)) && *ptr)
 502                                     {
 503                                        Container container = (Container)*ptr;
 504                                        container.Free();
 505                                        delete container;
 506                                     }
 507                                     *ptr = value.p;
 508                                  }
 509                                  else if(type == class(double) || !strcmp(type.dataTypeString, "double"))
 510                                  {
 511                                     *(double *)((byte *)*object + member._class.offset + member.offset) = value.d;
 512                                  }
 513                                  else if(type == class(float) || !strcmp(type.dataTypeString, "float"))
 514                                  {
 515                                     *(float *)((byte *)*object + member._class.offset + member.offset) = value.f;
 516                                  }
 517                                  else if(type.typeSize == sizeof(int64) || !strcmp(type.dataTypeString, "int64") ||
 518                                     !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64"))
 519                                  {
 520                                     *(uint64 *)((byte *)*object + member._class.offset + member.offset) = value.ui64;
 521                                  }
 522                                  else if(type.typeSize == sizeof(int) || !strcmp(type.dataTypeString, "int") ||
 523                                     !strcmp(type.dataTypeString, "unsigned int") || !strcmp(type.dataTypeString, "uint"))
 524                                  {
 525                                     *(int *)((byte *)*object + member._class.offset + member.offset) = value.i;
 526                                  }
 527                                  else if(type.typeSize == sizeof(short int) || !strcmp(type.dataTypeString, "short") ||
 528                                     !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 529                                     !strcmp(type.dataTypeString, "int16"))
 530                                  {
 531                                     *(short *)((byte *)*object + member._class.offset + member.offset) = value.s;
 532                                  }
 533                                  else if(type.typeSize == sizeof(byte) || !strcmp(type.dataTypeString, "char") ||
 534                                     !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
 535                                  {
 536                                     *(char *)((byte *)*object + member._class.offset + member.offset) = value.c;
 537                                  }
 538                                  else
 539                                  {
 540                                     *(void **)((byte *)*object + member._class.offset + member.offset) = value.p;
 541                                  }
 542                               }
 543                               else if(prop && prop.Set)
 544                               {
 545                                  if(!strcmp(type.dataTypeString, "char *"))
 546                                  {
 547                                     ((void (*)(void *, void *))(void *)prop.Set)(*object, value.p);
 548                                     if(!isKey)
 549                                        delete value.p;
 550                                  }
 551                                  // TOFIX: How to swiftly handle classes with base data type?
 552                                  else if(type == class(double) || !strcmp(type.dataTypeString, "double"))
 553                                  {
 554                                     ((void (*)(void *, double))(void *)prop.Set)(*object, value.d);
 555                                  }
 556                                  else if(type == class(float) || !strcmp(type.dataTypeString, "float"))
 557                                  {
 558                                     ((void (*)(void *, float))(void *)prop.Set)(*object, value.f);
 559                                  }
 560                                  else if(type.typeSize == sizeof(int64) || !strcmp(type.dataTypeString, "int64") ||
 561                                     !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64"))
 562                                  {
 563                                     ((void (*)(void *, uint64))(void *)prop.Set)(*object, value.ui64);
 564                                  }
 565                                  else if(type.typeSize == sizeof(int) || !strcmp(type.dataTypeString, "int") ||
 566                                     !strcmp(type.dataTypeString, "unsigned int") || !strcmp(type.dataTypeString, "uint"))
 567                                  {
 568                                     ((void (*)(void *, int))(void *)prop.Set)(*object, value.i);
 569                                  }
 570                                  else if(type.typeSize == sizeof(short int) || !strcmp(type.dataTypeString, "short") ||
 571                                     !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 572                                     !strcmp(type.dataTypeString, "int16"))
 573                                  {
 574                                     ((void (*)(void *, short))(void *)prop.Set)(*object, value.s);
 575                                  }
 576                                  else if(type.typeSize == sizeof(byte) || !strcmp(type.dataTypeString, "char") ||
 577                                     !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
 578                                  {
 579                                     ((void (*)(void *, char))(void *)prop.Set)(*object, value.c);
 580                                  }
 581                                  else
 582                                  {
 583                                     ((void (*)(void *, void *))(void *)prop.Set)(*object, value.p);
 584                                  }
 585                               }
 586                            }
 587                            else
 588                            {
 589                               PrintLn("Warning: Incompatible value for ", member ? (String)member.name : (String)prop.name,
 590                                  ", expected ", member ? (String)member.dataTypeString : (String)prop.dataTypeString);
 591                            }
 592                         }
 593                      }
 594                   }
 595                   else
 596                      result = syntaxError;
 597                }
 598             }
 599             else if(ch && ch != '}' && ch != ',')
 600                result = syntaxError;
 601             delete string;
 602
 603             if(result)
 604             {
 605                SkipEmpty();
 606                if(ch == '}')
 607                {
 608                   break;
 609                }
 610                else if(ch != ',')
 611                   result = syntaxError;
 612             }
 613          }
 614       }
 615       ch = 0;
 616       return result;
 617    }
 618
 619    JSONResult GetNumber(Class type, DataValue value)
 620    {
 621       JSONResult result = syntaxError;
 622       char buffer[256];
 623       int c = 0;
 624       while(c < sizeof(buffer)-1 && (ch == '-' || ch == '.' || tolower(ch) == 'e' || ch == '+' || isdigit(ch)))
 625       {
 626          buffer[c++] = ch;
 627          if(!f.Getc(&ch)) break;
 628       }
 629       buffer[c] = 0;
 630       //if(strchr(buffer, '.'))
 631
 632       // TOFIX: How to swiftly handle classes with base data type?
 633       if(type == class(double) || !strcmp(type.dataTypeString, "double"))
 634       {
 635          value.d = strtod(buffer, null);
 636          result = success;
 637       }
 638       else if(type == class(float) || !strcmp(type.dataTypeString, "float"))
 639       {
 640          value.f = (float)strtod(buffer, null);
 641          result = success;
 642       }
 643       // TOFIX: int64 looks for class long long?
 644       //else if(type == class(int64) || !strcmp(type.dataTypeString, "int64"))
 645       else if(!strcmp(type.dataTypeString, "int64"))
 646       {
 647          value.i64 = strtol(buffer, null, 10);  // TOFIX: 64 bit support
 648          result = success;
 649       }
 650       else if(type == class(uint64) || !strcmp(type.dataTypeString, "uint64"))
 651       {
 652          value.ui64 = strtol(buffer, null, 10);  // TOFIX: 64 bit support
 653          result = success;
 654       }
 655       else
 656       {
 657          value.i = strtol(buffer, null, 10);
 658          result = success;
 659       }
 660       return result;
 661    }
 662 }
 663
 664 bool WriteMap(File f, Class type, Map map, int indent)
 665 {
 666    if(map)
 667    {
 668       int i;
 669       bool isFirst = true;
 670       MapIterator it { map = map };
 671       Class mapNodeClass = map._class.templateArgs[0].dataTypeClass;
 672       f.Puts("[\n");
 673       indent++;
 674
 675       while(it.Next())
 676       {
 677          MapNode n = (MapNode)it.pointer;
 678          if(!isFirst)
 679             f.Puts(",\n");
 680          else
 681             isFirst = false;
 682          for(i = 0; i<indent; i++) f.Puts("   ");
 683          _WriteJSONObject(f, mapNodeClass, n, indent);
 684       }
 685       f.Puts("\n");
 686       indent--;
 687       for(i = 0; i<indent; i++) f.Puts("   ");
 688       f.Puts("]");
 689    }
 690    else
 691       f.Puts("null");
 692    return true;
 693 }
 694
 695 bool WriteArray(File f, Class type, Container array, int indent)
 696 {
 697    if(array)
 698    {
 699       int i;
 700       bool isFirst = true;
 701       Iterator it { array };
 702       Class arrayType = type.templateArgs[0].dataTypeClass;
 703       f.Puts("[\n");
 704       indent++;
 705
 706       while(it.Next())
 707       {
 708          DataValue value { };
 709          uint64 t = ((uint64(*)(void *, void *))(void *)array.GetData)(array, it.pointer);
 710          if(!isFirst)
 711             f.Puts(",\n");
 712          else
 713             isFirst = false;
 714
 715          // Add value
 716          // TODO: Verify the matching between template type and uint64
 717          if(arrayType.type == structClass)
 718          {
 719             value.p = (void *)(uintptr)t;
 720          }
 721          else if(arrayType == class(double) || !strcmp(arrayType.dataTypeString, "double"))
 722          {
 723             value.ui64 = t;
 724             //value.d = *(double *)&t;
 725          }
 726          else if(arrayType == class(float) || !strcmp(arrayType.dataTypeString, "float"))
 727          {
 728             value.ui = (uint)t;
 729             //value.f = *(float *)&t;
 730          }
 731          else if(arrayType.typeSize == sizeof(int64) || !strcmp(arrayType.dataTypeString, "int64") ||
 732             !strcmp(arrayType.dataTypeString, "unsigned int64") || !strcmp(arrayType.dataTypeString, "uint64"))
 733          {
 734             value.ui64 = t;
 735          }
 736          else if(arrayType.typeSize == sizeof(int) || !strcmp(arrayType.dataTypeString, "int") ||
 737             !strcmp(arrayType.dataTypeString, "unsigned int") || !strcmp(arrayType.dataTypeString, "uint"))
 738          {
 739             value.i = (int)t;
 740          }
 741          else if(arrayType.typeSize == sizeof(short int) || !strcmp(arrayType.dataTypeString, "short") ||
 742             !strcmp(arrayType.dataTypeString, "unsigned short") || !strcmp(arrayType.dataTypeString, "uint16") ||
 743             !strcmp(arrayType.dataTypeString, "int16"))
 744          {
 745             value.s = (short)t;
 746          }
 747          else if(arrayType.typeSize == sizeof(byte) || !strcmp(arrayType.dataTypeString, "char") ||
 748             !strcmp(arrayType.dataTypeString, "unsigned char") || !strcmp(arrayType.dataTypeString, "byte"))
 749          {
 750             value.c = (char)t;
 751          }
 752          else
 753          {
 754             value.p = (void *)(uintptr)t;
 755          }
 756          for(i = 0; i<indent; i++) f.Puts("   ");
 757          WriteValue(f, arrayType, value, indent);
 758       }
 759       f.Puts("\n");
 760       indent--;
 761       for(i = 0; i<indent; i++) f.Puts("   ");
 762       f.Puts("]");
 763    }
 764    else
 765       f.Puts("null");
 766    return true;
 767 }
 768
 769 bool WriteNumber(File f, Class type, DataValue value, int indent)
 770 {
 771    char buffer[1024];
 772    bool needClass = false;
 773    buffer[0] = 0;
 774    if(type == class(double) || !strcmp(type.dataTypeString, "double"))
 775       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.d, buffer, 0, &needClass);
 776    else if(type == class(float) || !strcmp(type.dataTypeString, "float"))
 777       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.f, buffer, null, &needClass);
 778    else if(!strcmp(type.dataTypeString, "int64"))
 779       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.i64, buffer, null, &needClass);
 780    else if(!strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64") || type.typeSize == sizeof(int64))
 781       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.ui64, buffer, null, &needClass);
 782    else if(!strcmp(type.dataTypeString, "int"))
 783       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.i, buffer, null, &needClass);
 784    else if(!strcmp(type.dataTypeString, "unsigned int") || !strcmp(type.dataTypeString, "uint") || type.typeSize == sizeof(int))
 785       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.ui, buffer, null, &needClass);
 786    else if(!strcmp(type.dataTypeString, "short") || !strcmp(type.dataTypeString, "int16"))
 787       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.s, buffer, null, &needClass);
 788    else if(!strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") || type.typeSize == sizeof(short int))
 789       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.us, buffer, null, &needClass);
 790    else if(!strcmp(type.dataTypeString, "char"))
 791       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.c, buffer, null, &needClass);
 792    else if(!strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte") || type.typeSize == sizeof(byte))
 793       ((const char *(*)(void *, void *, char *, void *, bool *))(void *)type._vTbl[__ecereVMethodID_class_OnGetString])(type, &value.uc, buffer, null, &needClass);
 794    f.Puts(buffer);
 795    return true;
 796 }
 797
 798 bool WriteValue(File f, Class type, DataValue value, int indent)
 799 {
 800    if(!strcmp(type.name, "String") || !strcmp(type.dataTypeString, "char *"))
 801    {
 802       if(!value.p)
 803          f.Puts("null");
 804       else
 805       {
 806          f.Puts("\"");
 807          //if(strchr(value.p, '\"') || strchr(value.p, '\\'))
 808          {
 809             int c = 0;
 810             int b = 0;
 811             char buffer[1024];
 812             char * string = value.p;
 813             char ch;
 814             while(true)
 815             {
 816                ch = string[c++];
 817                if(ch == '\"')
 818                {
 819                   buffer[b] = 0;
 820                   f.Puts(buffer);
 821                   f.Puts("\\\"");
 822                   b = 0;
 823                }
 824                else if(ch == '\\')
 825                {
 826                   buffer[b] = 0;
 827                   f.Puts(buffer);
 828                   f.Puts("\\\\");
 829                   b = 0;
 830                }
 831                else if(b == sizeof(buffer)-2 || !ch)
 832                {
 833                   buffer[b++] = ch;
 834                   if(ch) buffer[b] = 0;
 835                   f.Puts(buffer);
 836                   b = 0;
 837                   if(!ch) break;
 838                }
 839                else
 840                   buffer[b++] = ch;
 841             }
 842          }
 843          /*else
 844             f.Puts(value.p);*/
 845          f.Puts("\"");
 846       }
 847    }
 848    else if(!strcmp(type.name, "bool"))
 849    {
 850       if(value.i)
 851          f.Puts("true");
 852       else
 853          f.Puts("false");
 854    }
 855    else if(!strcmp(type.name, "SetBool"))
 856    {
 857       if(value.i == SetBool::true)
 858          f.Puts("true");
 859       else if(value.i == SetBool::false)
 860          f.Puts("false");
 861       else
 862          f.Puts("unset");
 863    }
 864    else if(type.type == enumClass || type.type == unitClass)
 865    {
 866       f.Puts("\"");
 867       WriteNumber(f, type, value, indent);
 868       f.Puts("\"");
 869    }
 870    else if(eClass_IsDerived(type, class(Map)))
 871    {
 872       WriteMap(f, type, value.p, indent);
 873    }
 874    else if(eClass_IsDerived(type, class(Container)))
 875    {
 876       WriteArray(f, type, value.p, indent);
 877    }
 878    else if(type.type == normalClass || type.type == noHeadClass || type.type == structClass || type.type == bitClass)
 879    {
 880       _WriteJSONObject(f, type, value.p, indent);
 881    }
 882    else if(type.type == systemClass)
 883    {
 884       WriteNumber(f, type, value, indent);
 885    }
 886    return true;
 887 }
 888
 889 public bool WriteJSONObject(File f, Class objectType, void * object, int indent)
 890 {
 891    bool result = false;
 892    if(object)
 893    {
 894       result = _WriteJSONObject(f, objectType, object, indent);
 895       f.Puts("\n");
 896    }
 897    return result;
 898 }
 899
 900 static bool _WriteJSONObject(File f, Class objectType, void * object, int indent)
 901 {
 902    if(object)
 903    {
 904       const char * string = null;
 905
 906       if(objectType._vTbl[__ecereVMethodID_class_OnGetString] != objectType.base._vTbl[__ecereVMethodID_class_OnGetString])
 907       {
 908          char buffer[1024];
 909          buffer[0] = 0;
 910          string = ((const char *(*)())(void *)objectType._vTbl[__ecereVMethodID_class_OnGetString])(objectType, object, buffer, null, null);
 911       }
 912       if(string)
 913       {
 914          // TOCHECK: ProjectNode.ec why do we add quotes in OnGetString there?
 915          if(string[0] == '\"')
 916             f.Puts(string);
 917          else
 918          {
 919             f.Puts("\"");
 920             f.Puts(string);
 921             f.Puts("\"");
 922          }
 923       }
 924       else
 925       {
 926          Property prop;
 927          int c;
 928          bool isFirst = true;
 929          Class mapKeyClass = null, mapDataClass = null;
 930          Class baseClass;
 931          List<Class> bases { };
 932
 933          if(objectType.templateClass && eClass_IsDerived(objectType.templateClass, class(MapNode)))
 934          {
 935             mapKeyClass = objectType.templateArgs[0].dataTypeClass;
 936             mapDataClass = objectType.templateArgs[2].dataTypeClass;
 937          }
 938
 939          f.Puts("{\n");
 940          indent++;
 941
 942          for(baseClass = objectType; baseClass; baseClass = baseClass.base)
 943          {
 944             if(baseClass.isInstanceClass || !baseClass.base)
 945                break;
 946             bases.Insert(null, baseClass);
 947          }
 948
 949          for(baseClass : bases)
 950          {
 951             for(prop = baseClass.membersAndProperties.first; prop; prop = prop.next)
 952             {
 953                if(prop.memberAccess != publicAccess || (prop.isProperty && (!prop.Set || !prop.Get))) continue;
 954                if(prop.isProperty)
 955                {
 956                   if(!prop.conversion && (!prop.IsSet || prop.IsSet(object)))
 957                   {
 958                      DataValue value { };
 959                      Class type;
 960
 961                      if(mapKeyClass && !strcmp(prop.name, "key"))
 962                         type = mapKeyClass;
 963                      else if(mapDataClass && !strcmp(prop.name, "value"))
 964                         type = mapDataClass;
 965                      else
 966                         type = eSystem_FindClass(__thisModule, prop.dataTypeString);
 967                      if(!type)
 968                         type = eSystem_FindClass(__thisModule.application, prop.dataTypeString);
 969                      if(!type)
 970                         PrintLn("warning: Unresolved data type ", (String)prop.dataTypeString);
 971                      else
 972                      {
 973                         // TOFIX: How to swiftly handle classes with base data type?
 974                         if(type == class(double) || !strcmp(type.dataTypeString, "double"))
 975                         {
 976                            value.d = ((double (*)(void *))(void *)prop.Get)(object);
 977                         }
 978                         else if(type == class(float) || !strcmp(type.dataTypeString, "float"))
 979                         {
 980                            value.f = ((float (*)(void *))(void *)prop.Get)(object);
 981                         }
 982                         else if(type.typeSize == sizeof(int64) || !strcmp(type.dataTypeString, "int64") ||
 983                            !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64"))
 984                         {
 985                            value.ui64 = ((uint64 (*)(void *))(void *)prop.Get)(object);
 986                         }
 987                         else if(type.typeSize == sizeof(int) || !strcmp(type.dataTypeString, "int") ||
 988                            !strcmp(type.dataTypeString, "unsigned int") || !strcmp(type.dataTypeString, "uint"))
 989                         {
 990                            value.i = ((int (*)(void *))(void *)prop.Get)(object);
 991                         }
 992                         else if(type.typeSize == sizeof(short int) || !strcmp(type.dataTypeString, "short") ||
 993                            !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 994                            !strcmp(type.dataTypeString, "int16"))
 995                         {
 996                            value.s = ((short (*)(void *))(void *)prop.Get)(object);
 997                         }
 998                         else if(type.typeSize == sizeof(byte) || !strcmp(type.dataTypeString, "char") ||
 999                            !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
1000                         {
1001                            value.c = ((char (*)(void *))(void *)prop.Get)(object);
1002                         }
1003                         else
1004                         {
1005                            value.p = ((void *(*)(void *))(void *)prop.Get)(object);
1006                         }
1007
1008                         if(!isFirst) f.Puts(",\n");
1009                         for(c = 0; c<indent; c++) f.Puts("   ");
1010
1011                         f.Puts("\"");
1012                         f.Putc((char)toupper(prop.name[0]));
1013                         f.Puts(prop.name+1);
1014                         f.Puts("\" : ");
1015                         WriteValue(f, type, value, indent);
1016                         isFirst = false;
1017                      }
1018                   }
1019                }
1020                else
1021                {
1022                   DataMember member = (DataMember)prop;
1023                   DataValue value { };
1024                   Class type = eSystem_FindClass(__thisModule, member.dataTypeString);
1025                   if(!type)
1026                      type = eSystem_FindClass(__thisModule.application, member.dataTypeString);
1027
1028                   if(type)
1029                   {
1030                      if(type.type == normalClass || type.type == noHeadClass || type.type == structClass || !strcmp(type.name, "String"))
1031                      {
1032                         if(type.type == structClass)
1033                            value.p = (void *)((byte *)object + member._class.offset + member.offset);
1034                         else
1035                            value.p = *(void **)((byte *)object + member._class.offset + member.offset);
1036                         if(!value.p)
1037                            continue;
1038                      }
1039                      else if(type == class(double) || !strcmp(type.dataTypeString, "double"))
1040                      {
1041                         value.d = *(double *)((byte *)object + member._class.offset + member.offset);
1042                      }
1043                      else if(type == class(float) || !strcmp(type.dataTypeString, "float"))
1044                      {
1045                         value.f = *(float *)((byte *)object + member._class.offset + member.offset);
1046                      }
1047                      else if(type.typeSize == sizeof(int64) || !strcmp(type.dataTypeString, "int64") ||
1048                         !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64"))
1049                      {
1050                         value.ui64 = *(uint64 *)((byte *)object + member._class.offset + member.offset);
1051                      }
1052                      else if(type.typeSize == sizeof(int) || !strcmp(type.dataTypeString, "int") ||
1053                         !strcmp(type.dataTypeString, "unsigned int") || !strcmp(type.dataTypeString, "uint"))
1054                      {
1055                         value.i = *(int *)((byte *)object + member._class.offset + member.offset);
1056                         if(!strcmp(type.name, "bool") || type.type == enumClass)
1057                            if(!value.i)
1058                               continue;
1059                      }
1060                      else if(type.typeSize == sizeof(short int) || !strcmp(type.dataTypeString, "short") ||
1061                         !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
1062                         !strcmp(type.dataTypeString, "int16"))
1063                      {
1064                         value.s = *(short *)((byte *)object + member._class.offset + member.offset);
1065                      }
1066                      else if(type.typeSize == sizeof(byte) || !strcmp(type.dataTypeString, "char") ||
1067                         !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
1068                      {
1069                         value.c = *(char *)((byte *)object + member._class.offset + member.offset);
1070                      }
1071                      else
1072                      {
1073                         value.i = *(int *)((byte *)object + member._class.offset + member.offset);
1074                      }
1075
1076                      if(!isFirst) f.Puts(",\n");
1077                      for(c = 0; c<indent; c++) f.Puts("   ");
1078
1079                      f.Puts("\"");
1080                      f.Putc((char)toupper(member.name[0]));
1081                      f.Puts(member.name+1);
1082                      f.Puts("\" : ");
1083                      WriteValue(f, type, value, indent);
1084                      isFirst = false;
1085                   }
1086                }
1087             }
1088          }
1089
1090          delete bases;
1091
1092          indent--;
1093          f.Puts("\n");
1094          for(c = 0; c<indent; c++) f.Puts("   "); f.Puts("}");
1095       }
1096    }
1097    else
1098       f.Puts("null");
1099    return true;
1100 }