Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 1 | // Copyright 2020 The Pigweed Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| 4 | // use this file except in compliance with the License. You may obtain a copy of |
| 5 | // the License at |
| 6 | // |
| 7 | // https://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 11 | // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 12 | // License for the specific language governing permissions and limitations under |
| 13 | // the License. |
| 14 | |
| 15 | // This program generates Python test data for decoder_test.py. |
| 16 | // |
| 17 | // To generate the test data, build the target |
| 18 | // pw_tokenizer_generate_decoding_test_data. Execute the binary and move the |
| 19 | // generated files to this directory. |
| 20 | |
| 21 | #include <array> |
| 22 | #include <cctype> |
| 23 | #include <cinttypes> |
| 24 | #include <cstdarg> |
| 25 | #include <cstdint> |
| 26 | #include <cstdio> |
| 27 | #include <random> |
Wyatt Hepler | e2cbadf | 2020-06-22 11:21:45 -0700 | [diff] [blame] | 28 | #include <span> |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 29 | |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 30 | #include "pw_tokenizer/internal/decode.h" |
| 31 | #include "pw_tokenizer/tokenize.h" |
| 32 | #include "pw_varint/varint.h" |
| 33 | |
| 34 | namespace { |
| 35 | |
| 36 | // Defines how to format test cases for the target language. |
| 37 | struct SourceFileFormat { |
| 38 | const char* extension; |
| 39 | const char* comment; |
| 40 | const char* header; |
| 41 | const char* footer; |
| 42 | const char* test_case_prefix; |
| 43 | const char* binary_string_prefix; |
| 44 | const char* binary_string_suffix; |
| 45 | }; |
| 46 | |
| 47 | // clang-format off |
| 48 | constexpr const char* kCopyrightLines[] = { |
| 49 | "Copyright 2020 The Pigweed Authors", |
| 50 | "", |
| 51 | "Licensed under the Apache License, Version 2.0 (the \"License\"); you may not", |
| 52 | "use this file except in compliance with the License. You may obtain a copy of", |
| 53 | "the License at", |
| 54 | "", |
| 55 | " https://www.apache.org/licenses/LICENSE-2.0", |
| 56 | "", |
| 57 | "Unless required by applicable law or agreed to in writing, software", |
| 58 | "distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT", |
| 59 | "WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the", |
| 60 | "License for the specific language governing permissions and limitations under", |
| 61 | "the License.", |
| 62 | }; |
| 63 | // clang-format on |
| 64 | |
| 65 | // The header includes a %s for the name and a %s for the test case type. |
| 66 | constexpr const char kCcHeader[] = R"(#pragma once |
| 67 | |
| 68 | #include <string_view> |
| 69 | #include <tuple> |
| 70 | |
| 71 | namespace pw::test::%s { |
| 72 | |
| 73 | using namespace std::literals::string_view_literals; |
| 74 | |
| 75 | // clang-format off |
| 76 | using TestCase = %s; |
| 77 | |
| 78 | inline constexpr TestCase kTestData[] = { |
| 79 | )"; |
| 80 | |
| 81 | constexpr const char kCcFooter[] = R"( |
| 82 | }; |
| 83 | |
| 84 | } // namespace pw::test::%s |
| 85 | )"; |
| 86 | |
| 87 | constexpr const char kPythonHeader[] = R"("""Generated test data.""" |
| 88 | |
| 89 | # pylint: disable=line-too-long |
| 90 | # C++ test case type for %s: |
| 91 | # %s |
| 92 | |
| 93 | |
| 94 | def TestCase(*args): # pylint: disable=invalid-name |
| 95 | return tuple(args) |
| 96 | |
| 97 | |
| 98 | # yapf: disable |
| 99 | TEST_DATA = ( |
| 100 | )"; |
| 101 | |
| 102 | constexpr SourceFileFormat kCcFormat{ |
| 103 | ".h", "//", kCcHeader, kCcFooter, "TestCase", "\"", "\"sv"}; |
| 104 | |
| 105 | constexpr SourceFileFormat kPythonFormat{ |
| 106 | ".py", "#", kPythonHeader, "\n)\n", "", "b'", "'"}; |
| 107 | |
| 108 | class TestDataFile { |
| 109 | public: |
| 110 | TestDataFile(const char* name, |
| 111 | const SourceFileFormat& format, |
| 112 | const char* test_case_format) |
| 113 | : format_(format), |
| 114 | name_(name), |
| 115 | test_case_format_(test_case_format), |
| 116 | path_(std::string(name) + "_test_data" + format_.extension), |
| 117 | file_(std::fopen(path_.c_str(), "w")) {} |
| 118 | |
| 119 | ~TestDataFile() { std::fclose(file_); } |
| 120 | |
| 121 | const SourceFileFormat& fmt() const { return format_; } |
| 122 | const std::string& path() const { return path_; } |
| 123 | |
| 124 | // Writes a file with test cases uses the provided function. |
| 125 | void WriteTestCases(void (*function)(TestDataFile*)) { |
| 126 | static constexpr const char* kFileBase = |
| 127 | &__FILE__[std::string_view(__FILE__).find_last_of('/') + 1]; |
| 128 | |
| 129 | for (const char* line : kCopyrightLines) { |
| 130 | printf("%s", fmt().comment); |
| 131 | if (line[0] == '\0') { |
| 132 | printf("\n"); |
| 133 | } else { |
| 134 | printf(" %s\n", line); |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | printf("\n%s AUTOGENERATED - DO NOT EDIT\n", fmt().comment); |
| 139 | printf("%s This file contains test data generated by %s.\n", |
| 140 | fmt().comment, |
| 141 | kFileBase); |
| 142 | |
| 143 | printf(fmt().header, name_, test_case_format_); |
| 144 | function(this); |
| 145 | printf(fmt().footer, name_); |
| 146 | } |
| 147 | |
| 148 | // Starts a section of test cases in the file. |
| 149 | void Section(const char* comment) { |
| 150 | printf("\n%s %s\n", fmt().comment, comment); |
| 151 | } |
| 152 | |
| 153 | int printf(const char* format, ...) PW_PRINTF_FORMAT(2, 3) { |
| 154 | va_list args; |
| 155 | va_start(args, format); |
| 156 | const int result = std::vfprintf(file_, format, args); |
| 157 | va_end(args); |
| 158 | return result; |
| 159 | } |
| 160 | |
| 161 | private: |
| 162 | SourceFileFormat format_; |
| 163 | const char* name_; |
| 164 | const char* test_case_format_; |
| 165 | std::string path_; |
| 166 | FILE* file_; |
| 167 | }; |
| 168 | |
| 169 | // Writes a decoding test case to the file. |
| 170 | void TestCase(TestDataFile* file, |
Wyatt Hepler | e2cbadf | 2020-06-22 11:21:45 -0700 | [diff] [blame] | 171 | std::span<const uint8_t> buffer, |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 172 | const char* format, |
| 173 | const char* formatted) { |
| 174 | file->printf(R"(TestCase("%s", "%s", %s)", |
| 175 | format, |
| 176 | formatted, |
| 177 | file->fmt().binary_string_prefix); |
| 178 | |
| 179 | for (uint8_t byte : buffer) { |
| 180 | file->printf("\\x%02x", byte); |
| 181 | } |
| 182 | |
| 183 | file->printf("%s),\n", file->fmt().binary_string_suffix); |
| 184 | } |
| 185 | |
| 186 | template <size_t kSize> |
| 187 | void TestCase(TestDataFile* file, |
| 188 | const char* format, |
| 189 | const char (&buffer)[kSize], |
| 190 | const char* formatted) { |
| 191 | TestCase(file, |
Wyatt Hepler | e2cbadf | 2020-06-22 11:21:45 -0700 | [diff] [blame] | 192 | std::span(reinterpret_cast<const uint8_t*>(buffer), kSize - 1), |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 193 | format, |
| 194 | formatted); |
| 195 | } |
| 196 | |
| 197 | // __VA_ARGS__ is expanded twice, so ONLY variables / constants should be used. |
| 198 | #define MAKE_TEST_CASE(format, ...) \ |
| 199 | do { \ |
| 200 | std::array<uint8_t, 128> buffer; \ |
| 201 | size_t size = buffer.size(); \ |
| 202 | PW_TOKENIZE_TO_BUFFER(buffer.data(), &size, format, ##__VA_ARGS__); \ |
| 203 | \ |
| 204 | std::array<char, 128> formatted = {}; \ |
| 205 | std::snprintf(formatted.data(), formatted.size(), format, ##__VA_ARGS__); \ |
| 206 | TestCase(file, \ |
Wyatt Hepler | e2cbadf | 2020-06-22 11:21:45 -0700 | [diff] [blame] | 207 | std::span(buffer).first(size).subspan(4), /* skip the token */ \ |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 208 | format, \ |
| 209 | formatted.data()); \ |
| 210 | } while (0) |
| 211 | |
| 212 | // Formats the contents like an error. |
| 213 | #define ERROR_STR PW_TOKENIZER_ARG_DECODING_ERROR |
| 214 | |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 215 | // Generates data to test tokenized string decoding. |
| 216 | void GenerateEncodedStrings(TestDataFile* file) { |
| 217 | std::mt19937 random(6006411); |
| 218 | std::uniform_int_distribution<int64_t> big; |
| 219 | std::uniform_int_distribution<int32_t> medium; |
| 220 | std::uniform_int_distribution<char> small(' ', '~'); |
| 221 | std::uniform_real_distribution<float> real; |
| 222 | |
| 223 | file->Section("Simple strings"); |
| 224 | TestCase(file, "%s", "\3SFO", "SFO"); |
| 225 | TestCase(file, "%s", "\4KSJC", "KSJC"); |
| 226 | TestCase(file, "%s", "\0", ""); |
| 227 | |
| 228 | TestCase(file, "%5s%s", "\2no\3fun", " nofun"); |
| 229 | TestCase(file, "%5s%s", "\6abcdef\0", "abcdef"); |
| 230 | TestCase(file, "%5s%s", "\0\6abcdef", " abcdef"); |
| 231 | |
| 232 | TestCase(file, |
| 233 | "%s %-6s%s%s%s", |
| 234 | "\5Intel\580586\7toaster\1 \4oven", |
| 235 | "Intel 80586 toaster oven"); |
| 236 | TestCase(file, |
| 237 | "%s %-6s%s%s%s", |
| 238 | "\5Apple\x09" |
| 239 | "automatic\7 pencil\1 \x09sharpener", |
| 240 | "Apple automatic pencil sharpener"); |
| 241 | |
| 242 | file->Section("Zero-length strings"); |
| 243 | TestCase(file, "%s-%s", "\x02so\x00", "so-"); |
| 244 | TestCase(file, "%s-%s", "\x00\04cool", "-cool"); |
| 245 | TestCase(file, "%s%s%3s%s", "\0\0\0\0", " "); |
| 246 | TestCase(file, "(%5s)(%2s)(%7s)", "\x80\0\x80", "([...])( )( [...])"); |
| 247 | |
| 248 | file->Section("Invalid strings"); |
| 249 | TestCase(file, "%s", "\x03hi", ERROR_STR("%s ERROR (hi)")); |
| 250 | TestCase(file, "%30s", "\x03hi", ERROR_STR("%30s ERROR (hi)")); |
| 251 | TestCase(file, "%30s", "\x83hi", ERROR_STR("%30s ERROR (hi)")); |
| 252 | TestCase(file, "%s", "\x85yo!", ERROR_STR("%s ERROR (yo!)")); |
| 253 | TestCase(file, "%s", "\x01", ERROR_STR("%s ERROR")); |
| 254 | TestCase(file, "%30s", "\x81", ERROR_STR("%30s ERROR")); |
| 255 | |
| 256 | file->Section("Continue after truncated string"); |
| 257 | TestCase(file, "%s %d %s", "\x82go\4\5lunch", "go[...] 2 lunch"); |
| 258 | TestCase(file, "%6s%s%s", "\x80\x85hello\x05there", " [...]hello[...]there"); |
| 259 | |
| 260 | file->Section("Floating point"); |
| 261 | TestCase(file, "%1.1f", "\0\0\0\0", "0.0"); |
| 262 | TestCase(file, "%0.5f", "\xdb\x0f\x49\x40", "3.14159"); |
| 263 | |
| 264 | file->Section("Character"); // ZigZag doubles the value of positive integers. |
| 265 | TestCase(file, "%c", "\x40", " "); // 0x20 |
| 266 | TestCase(file, "%c", "\x48", "$"); // 0x24 |
| 267 | TestCase(file, "%c", "\x48", "$"); // 0x24 |
| 268 | TestCase(file, "100%c!", "\x4A", "100%!"); // 0x25 |
| 269 | |
| 270 | file->Section("Atypical argument types"); |
| 271 | MAKE_TEST_CASE("%ju", static_cast<uintmax_t>(99)); |
| 272 | MAKE_TEST_CASE("%jd", static_cast<intmax_t>(99)); |
| 273 | MAKE_TEST_CASE("%zu", sizeof(uint64_t)); |
| 274 | MAKE_TEST_CASE("%zd", static_cast<ssize_t>(123)); |
| 275 | MAKE_TEST_CASE("%td", static_cast<ptrdiff_t>(99)); |
| 276 | |
| 277 | file->Section("Percent character"); |
| 278 | TestCase(file, "%%", "", "%"); |
| 279 | TestCase(file, "%%%%%%%%", "abc", "%%%%"); |
| 280 | TestCase(file, "whoa%%%%wow%%%%!%%", "", "whoa%%wow%%!%"); |
| 281 | TestCase(file, "This is %d%% effective", "\x02", "This is 1% effective"); |
| 282 | TestCase( |
| 283 | file, "%% is 100%sa%%sign%%%s", "\x01%\x03OK?", "% is 100%a%sign%OK?"); |
| 284 | |
| 285 | file->Section("Percent character prints after errors"); |
| 286 | TestCase(file, "%s%%", "\x83-10\0", "-10[...]%"); |
| 287 | TestCase( |
| 288 | file, "%d%% is a good %%", "", ERROR_STR("%d MISSING") "% is a good %"); |
| 289 | |
| 290 | file->Section("Various format strings"); |
| 291 | MAKE_TEST_CASE("!"); |
| 292 | MAKE_TEST_CASE("%s", "%s"); |
| 293 | MAKE_TEST_CASE("%s", "hello"); |
| 294 | MAKE_TEST_CASE("%s%s", "Hello", "old"); |
| 295 | MAKE_TEST_CASE("%s to the%c%s", "hello", ' ', "whirled"); |
| 296 | MAKE_TEST_CASE("hello %s %d %d %d", "rolled", 1, 2, 3); |
| 297 | |
| 298 | TestCase(file, "", "", ""); |
| 299 | TestCase(file, "This has no specifiers", "", "This has no specifiers"); |
| 300 | TestCase(file, "%s_or_%3s", "\x05hello\x02hi", "hello_or_ hi"); |
| 301 | TestCase(file, "%s_or_%3d", "\x05hello\x7f", "hello_or_-64"); |
| 302 | TestCase(file, |
| 303 | "%s or hi%c pi=%1.2e", |
| 304 | "\x05hello\x42\xdb\x0f\x49\x40", |
| 305 | "hello or hi! pi=3.14e+00"); |
| 306 | TestCase(file, |
| 307 | "Why, %s there. My favorite number is %.2f%c", |
| 308 | "\x05hello\xdb\x0f\x49\x40\x42", |
| 309 | "Why, hello there. My favorite number is 3.14!"); |
| 310 | |
| 311 | file->Section("Various errors"); |
| 312 | TestCase(file, "%d", "", ERROR_STR("%d MISSING")); |
| 313 | |
| 314 | TestCase(file, |
| 315 | "ABC%d123%dabc%dABC", |
| 316 | "", |
| 317 | "ABC" ERROR_STR("%d MISSING") "123" ERROR_STR( |
| 318 | "%d SKIPPED") "abc" ERROR_STR("%d SKIPPED") "ABC"); |
| 319 | |
| 320 | TestCase(file, |
| 321 | "%sXY%+ldxy%a", |
| 322 | "\x83Yo!\x80", |
| 323 | "Yo![...]XY" ERROR_STR("%+ld ERROR") "xy" ERROR_STR("%a SKIPPED")); |
| 324 | |
| 325 | TestCase(file, "%d", "", ERROR_STR("%d MISSING")); |
| 326 | |
| 327 | TestCase(file, |
| 328 | "%sXY%+ldxy%a", |
| 329 | "\x83Yo!\x80", |
| 330 | "Yo![...]XY" ERROR_STR("%+ld ERROR") "xy" ERROR_STR("%a SKIPPED")); |
| 331 | |
| 332 | TestCase(file, |
| 333 | "%s%lld%9u", |
| 334 | "\x81$\x80\x80", |
| 335 | "$[...]" ERROR_STR("%lld ERROR") ERROR_STR("%9u SKIPPED")); |
| 336 | |
| 337 | file->Section("Alternate form (#)"); |
| 338 | MAKE_TEST_CASE("Hex: %#x", 0xbeef); |
| 339 | MAKE_TEST_CASE("Hex: %#08X", 0xfeed); |
| 340 | |
| 341 | file->Section("Random integers"); |
| 342 | for (int i = 0; i < 100; ++i) { |
| 343 | float f = real(random); |
| 344 | MAKE_TEST_CASE( |
| 345 | "This is a number: %+08.3e%1.0E%02d%g%G%f%-3f", f, f, i, f, f, f, f); |
| 346 | } |
| 347 | |
| 348 | for (int i = 0; i < 100; ++i) { |
| 349 | unsigned long long n1 = big(random); |
| 350 | int n2 = medium(random); |
| 351 | char ch = small(random); |
| 352 | if (ch == '"' || ch == '\\') { |
| 353 | ch = '\t'; |
| 354 | } |
| 355 | |
| 356 | MAKE_TEST_CASE("%s: %llu %d %c", std::to_string(i).c_str(), n1, n2, ch); |
| 357 | } |
| 358 | |
| 359 | for (int i = 0; i < 100; ++i) { |
| 360 | const long long n1 = big(random); |
| 361 | const unsigned n2 = medium(random); |
| 362 | const char ch = small(random); |
| 363 | |
| 364 | MAKE_TEST_CASE( |
| 365 | "%s: %lld 0x%16u%08X %d", std::to_string(i).c_str(), n1, n2, n2, ch); |
| 366 | } |
| 367 | } |
| 368 | |
| 369 | template <typename T> |
| 370 | void OutputVarintTest(TestDataFile* file, T i) { |
| 371 | if constexpr (sizeof(T) <= sizeof(int)) { |
| 372 | file->printf(R"(TestCase("%%d", "%d", "%%u", "%u", %s)", |
| 373 | static_cast<int>(i), |
| 374 | static_cast<unsigned>(i), |
| 375 | file->fmt().binary_string_prefix); |
| 376 | } else { |
| 377 | file->printf(R"(TestCase("%%lld", "%lld", "%%llu", "%llu", %s)", |
| 378 | static_cast<long long>(i), |
| 379 | static_cast<unsigned long long>(i), |
| 380 | file->fmt().binary_string_prefix); |
| 381 | } |
| 382 | |
| 383 | std::array<uint8_t, 10> buffer; |
| 384 | // All integers are encoded as signed for tokenization. |
Wyatt Hepler | e2cbadf | 2020-06-22 11:21:45 -0700 | [diff] [blame] | 385 | size_t size = |
| 386 | pw::varint::Encode(i, std::as_writable_bytes(std::span(buffer))); |
Wyatt Hepler | 80c6ee5 | 2020-01-03 09:54:58 -0800 | [diff] [blame] | 387 | |
| 388 | for (size_t i = 0; i < size; ++i) { |
| 389 | file->printf("\\x%02x", buffer[i]); |
| 390 | } |
| 391 | |
| 392 | file->printf("%s),\n", file->fmt().binary_string_suffix); |
| 393 | } |
| 394 | |
| 395 | // Generates data to test variable-length integer decoding. |
| 396 | void GenerateVarints(TestDataFile* file) { |
| 397 | std::mt19937 random(6006411); |
| 398 | std::uniform_int_distribution<int64_t> signed64; |
| 399 | std::uniform_int_distribution<int32_t> signed32; |
| 400 | std::uniform_int_distribution<int16_t> signed16; |
| 401 | |
| 402 | file->Section("Important numbers"); |
| 403 | OutputVarintTest(file, 0); |
| 404 | OutputVarintTest(file, std::numeric_limits<int16_t>::min()); |
| 405 | OutputVarintTest(file, std::numeric_limits<int16_t>::min() + 1); |
| 406 | OutputVarintTest(file, std::numeric_limits<int16_t>::max() - 1); |
| 407 | OutputVarintTest(file, std::numeric_limits<int16_t>::max()); |
| 408 | OutputVarintTest(file, std::numeric_limits<int32_t>::min()); |
| 409 | OutputVarintTest(file, std::numeric_limits<int32_t>::min() + 1); |
| 410 | OutputVarintTest(file, std::numeric_limits<int32_t>::max() - 1); |
| 411 | OutputVarintTest(file, std::numeric_limits<int32_t>::max()); |
| 412 | OutputVarintTest(file, std::numeric_limits<int64_t>::min()); |
| 413 | OutputVarintTest(file, std::numeric_limits<int64_t>::min() + 1); |
| 414 | OutputVarintTest(file, std::numeric_limits<int64_t>::max() - 1); |
| 415 | OutputVarintTest(file, std::numeric_limits<int64_t>::max()); |
| 416 | |
| 417 | file->Section("Random 64-bit ints"); |
| 418 | for (int i = 0; i < 500; ++i) { |
| 419 | OutputVarintTest(file, signed64(random)); |
| 420 | } |
| 421 | file->Section("Random 32-bit ints"); |
| 422 | for (int i = 0; i < 100; ++i) { |
| 423 | OutputVarintTest(file, signed32(random)); |
| 424 | } |
| 425 | file->Section("Random 16-bit ints"); |
| 426 | for (int i = 0; i < 100; ++i) { |
| 427 | OutputVarintTest(file, signed16(random)); |
| 428 | } |
| 429 | |
| 430 | file->Section("All 8-bit numbers"); |
| 431 | { |
| 432 | int i = std::numeric_limits<int8_t>::min(); |
| 433 | while (true) { |
| 434 | OutputVarintTest(file, i); |
| 435 | if (i == std::numeric_limits<int8_t>::max()) { |
| 436 | break; |
| 437 | } |
| 438 | // Don't use an inline increment to avoid undefined behavior (overflow). |
| 439 | i += 1; |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | template <typename Function> |
| 445 | void WriteFile(const char* name, |
| 446 | const char* test_case_format, |
| 447 | Function function) { |
| 448 | for (const SourceFileFormat& file_format : {kCcFormat, kPythonFormat}) { |
| 449 | TestDataFile file(name, file_format, test_case_format); |
| 450 | file.WriteTestCases(function); |
| 451 | |
| 452 | std::printf("Wrote %s\n", file.path().c_str()); |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | } // namespace |
| 457 | |
| 458 | int main(int, char**) { |
| 459 | WriteFile("tokenized_string_decoding", |
| 460 | "std::tuple<const char*, std::string_view, std::string_view>", |
| 461 | GenerateEncodedStrings); |
| 462 | WriteFile("varint_decoding", |
| 463 | "std::tuple<const char*, const char*, const char*, const char*, " |
| 464 | "std::string_view>", |
| 465 | GenerateVarints); |
| 466 | return 0; |
| 467 | } |