unittests/BinaryFormat/MsgPackWriterTest.cpp

   1 //===- MsgPackWriterTest.cpp ------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/BinaryFormat/MsgPackWriter.h"
  10 #include "llvm/BinaryFormat/MsgPack.h"
  11 #include "gtest/gtest.h"
  12
  13 using namespace llvm;
  14 using namespace llvm::msgpack;
  15
  16 struct MsgPackWriter : testing::Test {
  17   std::string Buffer;
  18   llvm::raw_string_ostream OStream;
  19   Writer MPWriter;
  20
  21   MsgPackWriter() : OStream(Buffer), MPWriter(OStream) {}
  22 };
  23
  24 TEST_F(MsgPackWriter, TestWriteNil) {
  25   MPWriter.writeNil();
  26   EXPECT_EQ(OStream.str(), "\xc0");
  27 }
  28
  29 TEST_F(MsgPackWriter, TestWriteBool) {
  30   MPWriter.write(true);
  31   MPWriter.write(false);
  32   EXPECT_EQ(OStream.str(), "\xc3\xc2");
  33 }
  34
  35 TEST_F(MsgPackWriter, TestWriteFixPositiveInt) {
  36   // FixPositiveInt form bitpattern starts with 0, so max FixPositiveInt
  37   // is 01111111 = 127
  38   for (uint64_t u = 0; u <= 127; ++u) {
  39     Buffer.clear();
  40     MPWriter.write(u);
  41     std::string Output = OStream.str();
  42     EXPECT_EQ(Output.size(), 1u);
  43     EXPECT_EQ(Output.data()[0], static_cast<uint8_t>(u));
  44   }
  45 }
  46
  47 TEST_F(MsgPackWriter, TestWriteUInt8Min) {
  48   // See TestWriteFixPositiveInt for why 128 is the min non-fix Int8
  49   uint64_t u = 128;
  50   MPWriter.write(u);
  51   EXPECT_EQ(OStream.str(), "\xcc\x80");
  52 }
  53
  54 TEST_F(MsgPackWriter, TestWriteUInt8) {
  55   uint64_t u = 221;
  56   MPWriter.write(u);
  57   EXPECT_EQ(OStream.str(), "\xcc\xdd");
  58 }
  59
  60 TEST_F(MsgPackWriter, TestWriteUInt8Max) {
  61   uint64_t u = UINT8_MAX;
  62   MPWriter.write(u);
  63   EXPECT_EQ(OStream.str(), "\xcc\xff");
  64 }
  65
  66 TEST_F(MsgPackWriter, TestWriteUInt16Min) {
  67   uint64_t u = static_cast<uint64_t>(UINT8_MAX) + 1;
  68   MPWriter.write(u);
  69   EXPECT_EQ(OStream.str(), std::string("\xcd\x01\x00", 3));
  70 }
  71
  72 TEST_F(MsgPackWriter, TestWriteUInt16) {
  73   uint64_t u = 43981;
  74   MPWriter.write(u);
  75   EXPECT_EQ(OStream.str(), "\xcd\xab\xcd");
  76 }
  77
  78 TEST_F(MsgPackWriter, TestWriteUInt16Max) {
  79   uint64_t u = UINT16_MAX;
  80   MPWriter.write(u);
  81   EXPECT_EQ(OStream.str(), "\xcd\xff\xff");
  82 }
  83
  84 TEST_F(MsgPackWriter, TestWriteUInt32Min) {
  85   uint64_t u = static_cast<uint64_t>(UINT16_MAX) + 1;
  86   MPWriter.write(u);
  87   EXPECT_EQ(OStream.str(), std::string("\xce\x00\x01\x00\x00", 5));
  88 }
  89
  90 TEST_F(MsgPackWriter, TestWriteUInt32) {
  91   uint64_t u = 2882400186;
  92   MPWriter.write(u);
  93   EXPECT_EQ(OStream.str(), "\xce\xab\xcd\xef\xba");
  94 }
  95
  96 TEST_F(MsgPackWriter, TestWriteUInt32Max) {
  97   uint64_t u = UINT32_MAX;
  98   MPWriter.write(u);
  99   EXPECT_EQ(OStream.str(), "\xce\xff\xff\xff\xff");
 100 }
 101
 102 TEST_F(MsgPackWriter, TestWriteUInt64Min) {
 103   uint64_t u = static_cast<uint64_t>(UINT32_MAX) + 1;
 104   MPWriter.write(u);
 105   EXPECT_EQ(OStream.str(),
 106             std::string("\xcf\x00\x00\x00\x01\x00\x00\x00\x00", 9));
 107 }
 108
 109 TEST_F(MsgPackWriter, TestWriteUInt64) {
 110   uint64_t u = 0x010203040506074a;
 111   MPWriter.write(u);
 112   EXPECT_EQ(OStream.str(), "\xcf\x01\x02\x03\x04\x05\x06\x07\x4a");
 113 }
 114
 115 TEST_F(MsgPackWriter, TestWriteUInt64Max) {
 116   uint64_t u = UINT64_MAX;
 117   MPWriter.write(u);
 118   EXPECT_EQ(OStream.str(), "\xcf\xff\xff\xff\xff\xff\xff\xff\xff");
 119 }
 120
 121 TEST_F(MsgPackWriter, TestWriteFixNegativeInt) {
 122   // Positive values will be written in a UInt form, so max FixNegativeInt is -1
 123   //
 124   // FixNegativeInt form bitpattern starts with 111, so min FixNegativeInt
 125   // is 11100000 = -32
 126   for (int64_t i = -1; i >= -32; --i) {
 127     Buffer.clear();
 128     MPWriter.write(i);
 129     std::string Output = OStream.str();
 130     EXPECT_EQ(Output.size(), 1u);
 131     EXPECT_EQ(static_cast<int8_t>(Output.data()[0]), static_cast<int8_t>(i));
 132   }
 133 }
 134
 135 TEST_F(MsgPackWriter, TestWriteInt8Max) {
 136   // See TestWriteFixNegativeInt for why -33 is the max non-fix Int8
 137   int64_t i = -33;
 138   MPWriter.write(i);
 139   EXPECT_EQ(OStream.str(), "\xd0\xdf");
 140 }
 141
 142 TEST_F(MsgPackWriter, TestWriteInt8) {
 143   int64_t i = -40;
 144   MPWriter.write(i);
 145   EXPECT_EQ(OStream.str(), "\xd0\xd8");
 146 }
 147
 148 TEST_F(MsgPackWriter, TestWriteInt8Min) {
 149   int64_t i = INT8_MIN;
 150   MPWriter.write(i);
 151   EXPECT_EQ(OStream.str(), "\xd0\x80");
 152 }
 153
 154 TEST_F(MsgPackWriter, TestWriteInt16Max) {
 155   int64_t i = static_cast<int64_t>(INT8_MIN) - 1;
 156   MPWriter.write(i);
 157   EXPECT_EQ(OStream.str(), "\xd1\xff\x7f");
 158 }
 159
 160 TEST_F(MsgPackWriter, TestWriteInt16) {
 161   int64_t i = -4369;
 162   MPWriter.write(i);
 163   EXPECT_EQ(OStream.str(), "\xd1\xee\xef");
 164 }
 165
 166 TEST_F(MsgPackWriter, TestWriteInt16Min) {
 167   int64_t i = INT16_MIN;
 168   MPWriter.write(i);
 169   EXPECT_EQ(OStream.str(), std::string("\xd1\x80\x00", 3));
 170 }
 171
 172 TEST_F(MsgPackWriter, TestWriteInt32Max) {
 173   int64_t i = static_cast<int64_t>(INT16_MIN) - 1;
 174   MPWriter.write(i);
 175   EXPECT_EQ(OStream.str(), "\xd2\xff\xff\x7f\xff");
 176 }
 177
 178 TEST_F(MsgPackWriter, TestWriteInt32) {
 179   int64_t i = -286331153;
 180   MPWriter.write(i);
 181   EXPECT_EQ(OStream.str(), "\xd2\xee\xee\xee\xef");
 182 }
 183
 184 TEST_F(MsgPackWriter, TestWriteInt32Min) {
 185   int64_t i = INT32_MIN;
 186   MPWriter.write(i);
 187   EXPECT_EQ(OStream.str(), std::string("\xd2\x80\x00\x00\x00", 5));
 188 }
 189
 190 TEST_F(MsgPackWriter, TestWriteInt64Max) {
 191   int64_t i = static_cast<int64_t>(INT32_MIN) - 1;
 192   MPWriter.write(i);
 193   EXPECT_EQ(OStream.str(), "\xd3\xff\xff\xff\xff\x7f\xff\xff\xff");
 194 }
 195
 196 TEST_F(MsgPackWriter, TestWriteInt64) {
 197   int64_t i = -1229782938247303441;
 198   MPWriter.write(i);
 199   EXPECT_EQ(OStream.str(), "\xd3\xee\xee\xee\xee\xee\xee\xee\xef");
 200 }
 201
 202 TEST_F(MsgPackWriter, TestWriteInt64Min) {
 203   int64_t i = INT64_MIN;
 204   MPWriter.write(i);
 205   EXPECT_EQ(OStream.str(),
 206             std::string("\xd3\x80\x00\x00\x00\x00\x00\x00\x00", 9));
 207 }
 208
 209 TEST_F(MsgPackWriter, TestWriteFloat32) {
 210   float f = -3.6973142664068907e+28;
 211   MPWriter.write(f);
 212   EXPECT_EQ(OStream.str(), "\xca\xee\xee\xee\xef");
 213 }
 214
 215 TEST_F(MsgPackWriter, TestWriteFloat64) {
 216   double d = -2.2899894549927042e+226;
 217   MPWriter.write(d);
 218   EXPECT_EQ(OStream.str(), "\xcb\xee\xee\xee\xee\xee\xee\xee\xef");
 219 }
 220
 221 TEST_F(MsgPackWriter, TestWriteFixStrMin) {
 222   std::string s;
 223   MPWriter.write(s);
 224   EXPECT_EQ(OStream.str(), "\xa0");
 225 }
 226
 227 TEST_F(MsgPackWriter, TestWriteFixStr) {
 228   std::string s = "foo";
 229   MPWriter.write(s);
 230   EXPECT_EQ(OStream.str(), "\xa3"
 231                            "foo");
 232 }
 233
 234 TEST_F(MsgPackWriter, TestWriteFixStrMax) {
 235   // FixStr format's size is a 5 bit unsigned integer, so max is 11111 = 31
 236   std::string s(31, 'a');
 237   MPWriter.write(s);
 238   EXPECT_EQ(OStream.str(), std::string("\xbf") + s);
 239 }
 240
 241 TEST_F(MsgPackWriter, TestWriteStr8Min) {
 242   // See TestWriteFixStrMax for why 32 is the min non-fix Str8
 243   std::string s(32, 'a');
 244   MPWriter.write(s);
 245   EXPECT_EQ(OStream.str(), std::string("\xd9\x20") + s);
 246 }
 247
 248 TEST_F(MsgPackWriter, TestWriteStr8) {
 249   std::string s(33, 'a');
 250   MPWriter.write(s);
 251   EXPECT_EQ(OStream.str(), std::string("\xd9\x21") + s);
 252 }
 253
 254 TEST_F(MsgPackWriter, TestWriteStr8Max) {
 255   std::string s(UINT8_MAX, 'a');
 256   MPWriter.write(s);
 257   EXPECT_EQ(OStream.str(), std::string("\xd9\xff") + s);
 258 }
 259
 260 TEST_F(MsgPackWriter, TestWriteStr16Min) {
 261   std::string s(static_cast<uint64_t>(UINT8_MAX) + 1, 'a');
 262   MPWriter.write(s);
 263   EXPECT_EQ(OStream.str(), std::string("\xda\x01\x00", 3) + s);
 264 }
 265
 266 TEST_F(MsgPackWriter, TestWriteStr16) {
 267   std::string s(511, 'a');
 268   MPWriter.write(s);
 269   EXPECT_EQ(OStream.str(), std::string("\xda\x01\xff") + s);
 270 }
 271
 272 TEST_F(MsgPackWriter, TestWriteStr16Max) {
 273   std::string s(UINT16_MAX, 'a');
 274   MPWriter.write(s);
 275   EXPECT_EQ(OStream.str(), std::string("\xda\xff\xff") + s);
 276 }
 277
 278 TEST_F(MsgPackWriter, TestWriteStr32Min) {
 279   std::string s(static_cast<uint64_t>(UINT16_MAX) + 1, 'a');
 280   MPWriter.write(s);
 281   EXPECT_EQ(OStream.str(), std::string("\xdb\x00\x01\x00\x00", 5) + s);
 282 }
 283
 284 TEST_F(MsgPackWriter, TestWriteStr32) {
 285   std::string s(131071, 'a');
 286   MPWriter.write(s);
 287   EXPECT_EQ(OStream.str(), std::string("\xdb\x00\x01\xff\xff", 5) + s);
 288 }
 289
 290 TEST_F(MsgPackWriter, TestWriteBin8Min) {
 291   std::string s;
 292   MPWriter.write(MemoryBufferRef(s, ""));
 293   EXPECT_EQ(OStream.str(), std::string("\xc4\x00", 2) + s);
 294 }
 295
 296 TEST_F(MsgPackWriter, TestWriteBin8) {
 297   std::string s(5, 'a');
 298   MPWriter.write(MemoryBufferRef(s, ""));
 299   EXPECT_EQ(OStream.str(), std::string("\xc4\x05") + s);
 300 }
 301
 302 TEST_F(MsgPackWriter, TestWriteBin8Max) {
 303   std::string s(UINT8_MAX, 'a');
 304   MPWriter.write(MemoryBufferRef(s, ""));
 305   EXPECT_EQ(OStream.str(), std::string("\xc4\xff") + s);
 306 }
 307
 308 TEST_F(MsgPackWriter, TestWriteBin16Min) {
 309   std::string s(static_cast<uint64_t>(UINT8_MAX) + 1, 'a');
 310   MPWriter.write(MemoryBufferRef(s, ""));
 311   EXPECT_EQ(OStream.str(), std::string("\xc5\x01\x00", 3) + s);
 312 }
 313
 314 TEST_F(MsgPackWriter, TestWriteBin16) {
 315   std::string s(511, 'a');
 316   MPWriter.write(MemoryBufferRef(s, ""));
 317   EXPECT_EQ(OStream.str(), "\xc5\x01\xff" + s);
 318 }
 319
 320 TEST_F(MsgPackWriter, TestWriteBin16Max) {
 321   std::string s(UINT16_MAX, 'a');
 322   MPWriter.write(MemoryBufferRef(s, ""));
 323   EXPECT_EQ(OStream.str(), std::string("\xc5\xff\xff") + s);
 324 }
 325
 326 TEST_F(MsgPackWriter, TestWriteBin32Min) {
 327   std::string s(static_cast<uint64_t>(UINT16_MAX) + 1, 'a');
 328   MPWriter.write(MemoryBufferRef(s, ""));
 329   EXPECT_EQ(OStream.str(), std::string("\xc6\x00\x01\x00\x00", 5) + s);
 330 }
 331
 332 TEST_F(MsgPackWriter, TestWriteBin32) {
 333   std::string s(131071, 'a');
 334   MPWriter.write(MemoryBufferRef(s, ""));
 335   EXPECT_EQ(OStream.str(), std::string("\xc6\x00\x01\xff\xff", 5) + s);
 336 }
 337
 338 TEST_F(MsgPackWriter, TestWriteFixArrayMin) {
 339   MPWriter.writeArraySize(0);
 340   EXPECT_EQ(OStream.str(), "\x90");
 341 }
 342
 343 TEST_F(MsgPackWriter, TestWriteFixArray) {
 344   MPWriter.writeArraySize(4);
 345   EXPECT_EQ(OStream.str(), "\x94");
 346 }
 347
 348 TEST_F(MsgPackWriter, TestWriteFixArrayMax) {
 349   // FixArray format's size is a 4 bit unsigned integer, so max is 1111 = 15
 350   MPWriter.writeArraySize(15);
 351   EXPECT_EQ(OStream.str(), "\x9f");
 352 }
 353
 354 TEST_F(MsgPackWriter, TestWriteArray16Min) {
 355   // See TestWriteFixArrayMax for why 16 is the min non-fix Array16
 356   MPWriter.writeArraySize(16);
 357   EXPECT_EQ(OStream.str(), std::string("\xdc\x00\x10", 3));
 358 }
 359
 360 TEST_F(MsgPackWriter, TestWriteArray16) {
 361   MPWriter.writeArraySize(273);
 362   EXPECT_EQ(OStream.str(), "\xdc\x01\x11");
 363 }
 364
 365 TEST_F(MsgPackWriter, TestWriteArray16Max) {
 366   MPWriter.writeArraySize(UINT16_MAX);
 367   EXPECT_EQ(OStream.str(), "\xdc\xff\xff");
 368 }
 369
 370 TEST_F(MsgPackWriter, TestWriteArray32Min) {
 371   MPWriter.writeArraySize(static_cast<uint64_t>(UINT16_MAX) + 1);
 372   EXPECT_EQ(OStream.str(), std::string("\xdd\x00\x01\x00\x00", 5));
 373 }
 374
 375 TEST_F(MsgPackWriter, TestWriteArray32) {
 376   MPWriter.writeArraySize(131071);
 377   EXPECT_EQ(OStream.str(), std::string("\xdd\x00\x01\xff\xff", 5));
 378 }
 379
 380 TEST_F(MsgPackWriter, TestWriteArray32Max) {
 381   MPWriter.writeArraySize(UINT32_MAX);
 382   EXPECT_EQ(OStream.str(), "\xdd\xff\xff\xff\xff");
 383 }
 384
 385 TEST_F(MsgPackWriter, TestWriteFixMapMin) {
 386   MPWriter.writeMapSize(0);
 387   EXPECT_EQ(OStream.str(), "\x80");
 388 }
 389
 390 TEST_F(MsgPackWriter, TestWriteFixMap) {
 391   MPWriter.writeMapSize(4);
 392   EXPECT_EQ(OStream.str(), "\x84");
 393 }
 394
 395 TEST_F(MsgPackWriter, TestWriteFixMapMax) {
 396   // FixMap format's size is a 4 bit unsigned integer, so max is 1111 = 15
 397   MPWriter.writeMapSize(15);
 398   EXPECT_EQ(OStream.str(), "\x8f");
 399 }
 400
 401 TEST_F(MsgPackWriter, TestWriteMap16Min) {
 402   // See TestWriteFixMapMax for why 16 is the min non-fix Map16
 403   MPWriter.writeMapSize(16);
 404   EXPECT_EQ(OStream.str(), std::string("\xde\x00\x10", 3));
 405 }
 406
 407 TEST_F(MsgPackWriter, TestWriteMap16) {
 408   MPWriter.writeMapSize(273);
 409   EXPECT_EQ(OStream.str(), "\xde\x01\x11");
 410 }
 411
 412 TEST_F(MsgPackWriter, TestWriteMap16Max) {
 413   MPWriter.writeMapSize(UINT16_MAX);
 414   EXPECT_EQ(OStream.str(), "\xde\xff\xff");
 415 }
 416
 417 TEST_F(MsgPackWriter, TestWriteMap32Min) {
 418   MPWriter.writeMapSize(static_cast<uint64_t>(UINT16_MAX) + 1);
 419   EXPECT_EQ(OStream.str(), std::string("\xdf\x00\x01\x00\x00", 5));
 420 }
 421
 422 TEST_F(MsgPackWriter, TestWriteMap32) {
 423   MPWriter.writeMapSize(131071);
 424   EXPECT_EQ(OStream.str(), std::string("\xdf\x00\x01\xff\xff", 5));
 425 }
 426
 427 TEST_F(MsgPackWriter, TestWriteMap32Max) {
 428   MPWriter.writeMapSize(UINT32_MAX);
 429   EXPECT_EQ(OStream.str(), std::string("\xdf\xff\xff\xff\xff", 5));
 430 }
 431
 432 // FixExt formats are only available for these specific lengths: 1, 2, 4, 8, 16
 433
 434 TEST_F(MsgPackWriter, TestWriteFixExt1) {
 435   std::string s(1, 'a');
 436   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 437   EXPECT_EQ(OStream.str(), std::string("\xd4\x01") + s);
 438 }
 439
 440 TEST_F(MsgPackWriter, TestWriteFixExt2) {
 441   std::string s(2, 'a');
 442   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 443   EXPECT_EQ(OStream.str(), std::string("\xd5\x01") + s);
 444 }
 445
 446 TEST_F(MsgPackWriter, TestWriteFixExt4) {
 447   std::string s(4, 'a');
 448   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 449   EXPECT_EQ(OStream.str(), std::string("\xd6\x01") + s);
 450 }
 451
 452 TEST_F(MsgPackWriter, TestWriteFixExt8) {
 453   std::string s(8, 'a');
 454   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 455   EXPECT_EQ(OStream.str(), std::string("\xd7\x01") + s);
 456 }
 457
 458 TEST_F(MsgPackWriter, TestWriteFixExt16) {
 459   std::string s(16, 'a');
 460   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 461   EXPECT_EQ(OStream.str(), std::string("\xd8\x01") + s);
 462 }
 463
 464 TEST_F(MsgPackWriter, TestWriteExt8Min) {
 465   std::string s;
 466   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 467   EXPECT_EQ(OStream.str(), std::string("\xc7\x00\x01", 3) + s);
 468 }
 469
 470 TEST_F(MsgPackWriter, TestWriteExt8) {
 471   std::string s(0x2a, 'a');
 472   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 473   EXPECT_EQ(OStream.str(), std::string("\xc7\x2a\x01") + s);
 474 }
 475
 476 TEST_F(MsgPackWriter, TestWriteExt8Max) {
 477   std::string s(UINT8_MAX, 'a');
 478   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 479   EXPECT_EQ(OStream.str(), std::string("\xc7\xff\x01") + s);
 480 }
 481
 482 TEST_F(MsgPackWriter, TestWriteExt16Min) {
 483   std::string s(static_cast<uint16_t>(UINT8_MAX) + 1, 'a');
 484   MPWriter.writeExt(0x02, MemoryBufferRef(s, ""));
 485   EXPECT_EQ(OStream.str(), std::string("\xc8\x01\x00\x02", 4) + s);
 486 }
 487
 488 TEST_F(MsgPackWriter, TestWriteExt16) {
 489   std::string s(273, 'a');
 490   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 491   EXPECT_EQ(OStream.str(), std::string("\xc8\x01\x11\x01") + s);
 492 }
 493
 494 TEST_F(MsgPackWriter, TestWriteExt16Max) {
 495   std::string s(UINT16_MAX, 'a');
 496   MPWriter.writeExt(0x01, MemoryBufferRef(s, ""));
 497   EXPECT_EQ(OStream.str(), std::string("\xc8\xff\xff\x01") + s);
 498 }
 499
 500 TEST_F(MsgPackWriter, TestWriteExt32Min) {
 501   std::string s(static_cast<uint32_t>(UINT16_MAX) + 1, 'a');
 502   MPWriter.writeExt(0x02, MemoryBufferRef(s, ""));
 503   EXPECT_EQ(OStream.str(), std::string("\xc9\x00\x01\x00\x00\x02", 6) + s);
 504 }
 505
 506 TEST_F(MsgPackWriter, TestWriteCompatibleNoStr8) {
 507   Writer CompatWriter(OStream, true);
 508   std::string s(32, 'a');
 509   CompatWriter.write(s);
 510   EXPECT_EQ(OStream.str(), std::string("\xda\x00\x20", 3) + s);
 511 }
 512
 513 TEST_F(MsgPackWriter, TestWriteCompatibleNoBin) {
 514   Writer CompatWriter(OStream, true);
 515   std::string s;
 516
 517 #ifdef GTEST_HAS_DEATH_TEST
 518 #ifndef NDEBUG
 519   EXPECT_DEATH(CompatWriter.write(MemoryBufferRef(s, "")), "compatible mode");
 520 #endif
 521 #endif
 522 }