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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library dart2js.cmdline; | |
| 6 | |
| 7 import 'dart:async' | |
| 8 show Future, EventSink; | |
| 9 import 'dart:convert' show UTF8, LineSplitter; | |
| 10 import 'dart:io' | |
| 11 show exit, File, FileMode, Platform, RandomAccessFile, FileSystemException, | |
| 12 stdin, stderr; | |
| 13 | |
| 14 import '../compiler.dart' as api; | |
| 15 import 'source_file.dart'; | |
| 16 import 'source_file_provider.dart'; | |
| 17 import 'filenames.dart'; | |
| 18 import 'util/uri_extras.dart'; | |
| 19 import 'util/util.dart' show stackTraceFilePrefix; | |
| 20 import 'util/command_line.dart'; | |
| 21 import '../../libraries.dart'; | |
| 22 | |
| 23 const String LIBRARY_ROOT = '../../../../..'; | |
| 24 const String OUTPUT_LANGUAGE_DART = 'Dart'; | |
| 25 | |
| 26 /** | |
| 27 * A string to identify the revision or build. | |
| 28 * | |
| 29 * This ID is displayed if the compiler crashes and in verbose mode, and is | |
| 30 * an aid in reproducing bug reports. | |
| 31 * | |
| 32 * The actual string is rewritten by a wrapper script when included in the sdk. | |
| 33 */ | |
| 34 String BUILD_ID = null; | |
| 35 | |
| 36 /** | |
| 37 * The data passed to the [HandleOption] callback is either a single | |
| 38 * string argument, or the arguments iterator for multiple arguments | |
| 39 * handlers. | |
| 40 */ | |
| 41 typedef void HandleOption(data); | |
| 42 | |
| 43 class OptionHandler { | |
| 44 final String pattern; | |
| 45 final HandleOption handle; | |
| 46 final bool multipleArguments; | |
| 47 | |
| 48 OptionHandler(this.pattern, this.handle, {this.multipleArguments: false}); | |
| 49 } | |
| 50 | |
| 51 /** | |
| 52 * Extract the parameter of an option. | |
| 53 * | |
| 54 * For example, in ['--out=fisk.js'] and ['-ohest.js'], the parameters | |
| 55 * are ['fisk.js'] and ['hest.js'], respectively. | |
| 56 */ | |
| 57 String extractParameter(String argument, {bool isOptionalArgument: false}) { | |
| 58 // m[0] is the entire match (which will be equal to argument). m[1] | |
| 59 // is something like "-o" or "--out=", and m[2] is the parameter. | |
| 60 Match m = new RegExp('^(-[a-z]|--.+=)(.*)').firstMatch(argument); | |
| 61 if (m == null) { | |
| 62 if (isOptionalArgument) return null; | |
| 63 helpAndFail('Unknown option "$argument".'); | |
| 64 } | |
| 65 return m[2]; | |
| 66 } | |
| 67 | |
| 68 String extractPath(String argument) { | |
| 69 String path = nativeToUriPath(extractParameter(argument)); | |
| 70 return path.endsWith("/") ? path : "$path/"; | |
| 71 } | |
| 72 | |
| 73 void parseCommandLine(List<OptionHandler> handlers, List<String> argv) { | |
| 74 // TODO(ahe): Use ../../args/args.dart for parsing options instead. | |
| 75 var patterns = <String>[]; | |
| 76 for (OptionHandler handler in handlers) { | |
| 77 patterns.add(handler.pattern); | |
| 78 } | |
| 79 var pattern = new RegExp('^(${patterns.join(")\$|^(")})\$'); | |
| 80 | |
| 81 Iterator<String> arguments = argv.iterator; | |
| 82 OUTER: while (arguments.moveNext()) { | |
| 83 String argument = arguments.current; | |
| 84 Match match = pattern.firstMatch(argument); | |
| 85 assert(match.groupCount == handlers.length); | |
| 86 for (int i = 0; i < handlers.length; i++) { | |
| 87 if (match[i + 1] != null) { | |
| 88 OptionHandler handler = handlers[i]; | |
| 89 if (handler.multipleArguments) { | |
| 90 handler.handle(arguments); | |
| 91 } else { | |
| 92 handler.handle(argument); | |
| 93 } | |
| 94 continue OUTER; | |
| 95 } | |
| 96 } | |
| 97 throw 'Internal error: "$argument" did not match'; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 FormattingDiagnosticHandler diagnosticHandler; | |
| 102 | |
| 103 Future compile(List<String> argv) { | |
| 104 stackTraceFilePrefix = '$currentDirectory'; | |
| 105 Uri libraryRoot = currentDirectory; | |
| 106 Uri out = currentDirectory.resolve('out.js'); | |
| 107 Uri sourceMapOut = currentDirectory.resolve('out.js.map'); | |
| 108 Uri packageRoot = null; | |
| 109 List<String> options = new List<String>(); | |
| 110 bool explicitOut = false; | |
| 111 bool wantHelp = false; | |
| 112 bool wantVersion = false; | |
| 113 String outputLanguage = 'JavaScript'; | |
| 114 bool stripArgumentSet = false; | |
| 115 bool analyzeOnly = false; | |
| 116 bool analyzeAll = false; | |
| 117 bool enableAsyncAwait = false; | |
| 118 bool trustTypeAnnotations = false; | |
| 119 bool checkedMode = false; | |
| 120 // List of provided options that imply that output is expected. | |
| 121 List<String> optionsImplyCompilation = <String>[]; | |
| 122 bool hasDisallowUnsafeEval = false; | |
| 123 // TODO(johnniwinther): Measure time for reading files. | |
| 124 SourceFileProvider inputProvider = new CompilerSourceFileProvider(); | |
| 125 diagnosticHandler = new FormattingDiagnosticHandler(inputProvider); | |
| 126 Map<String, dynamic> environment = new Map<String, dynamic>(); | |
| 127 | |
| 128 passThrough(String argument) => options.add(argument); | |
| 129 | |
| 130 if (BUILD_ID != null) { | |
| 131 passThrough("--build-id=$BUILD_ID"); | |
| 132 } | |
| 133 | |
| 134 setLibraryRoot(String argument) { | |
| 135 libraryRoot = currentDirectory.resolve(extractPath(argument)); | |
| 136 } | |
| 137 | |
| 138 setPackageRoot(String argument) { | |
| 139 packageRoot = currentDirectory.resolve(extractPath(argument)); | |
| 140 } | |
| 141 | |
| 142 setOutput(Iterator<String> arguments) { | |
| 143 optionsImplyCompilation.add(arguments.current); | |
| 144 String path; | |
| 145 if (arguments.current == '-o') { | |
| 146 if (!arguments.moveNext()) { | |
| 147 helpAndFail('Error: Missing file after -o option.'); | |
| 148 } | |
| 149 path = arguments.current; | |
| 150 } else { | |
| 151 path = extractParameter(arguments.current); | |
| 152 } | |
| 153 explicitOut = true; | |
| 154 out = currentDirectory.resolve(nativeToUriPath(path)); | |
| 155 sourceMapOut = Uri.parse('$out.map'); | |
| 156 } | |
| 157 | |
| 158 setOutputType(String argument) { | |
| 159 optionsImplyCompilation.add(argument); | |
| 160 if (argument == '--output-type=dart' || | |
| 161 argument == '--output-type=dart-multi') { | |
| 162 outputLanguage = OUTPUT_LANGUAGE_DART; | |
| 163 if (!explicitOut) { | |
| 164 out = currentDirectory.resolve('out.dart'); | |
| 165 sourceMapOut = currentDirectory.resolve('out.dart.map'); | |
| 166 } | |
| 167 } | |
| 168 passThrough(argument); | |
| 169 } | |
| 170 | |
| 171 String getDepsOutput(Map<String, SourceFile> sourceFiles) { | |
| 172 var filenames = new List.from(sourceFiles.keys); | |
| 173 filenames.sort(); | |
| 174 return filenames.join("\n"); | |
| 175 } | |
| 176 | |
| 177 setStrip(String argument) { | |
| 178 optionsImplyCompilation.add(argument); | |
| 179 stripArgumentSet = true; | |
| 180 passThrough(argument); | |
| 181 } | |
| 182 | |
| 183 setAnalyzeOnly(String argument) { | |
| 184 analyzeOnly = true; | |
| 185 passThrough(argument); | |
| 186 } | |
| 187 | |
| 188 setAnalyzeAll(String argument) { | |
| 189 analyzeAll = true; | |
| 190 passThrough(argument); | |
| 191 } | |
| 192 | |
| 193 setEnableAsync(String argument) { | |
| 194 enableAsyncAwait = true; | |
| 195 passThrough(argument); | |
| 196 } | |
| 197 | |
| 198 setVerbose(_) { | |
| 199 diagnosticHandler.verbose = true; | |
| 200 passThrough('--verbose'); | |
| 201 } | |
| 202 | |
| 203 implyCompilation(String argument) { | |
| 204 optionsImplyCompilation.add(argument); | |
| 205 passThrough(argument); | |
| 206 } | |
| 207 | |
| 208 setTrustTypeAnnotations(String argument) { | |
| 209 trustTypeAnnotations = true; | |
| 210 implyCompilation(argument); | |
| 211 } | |
| 212 | |
| 213 setCheckedMode(String argument) { | |
| 214 checkedMode = true; | |
| 215 passThrough(argument); | |
| 216 } | |
| 217 | |
| 218 addInEnvironment(String argument) { | |
| 219 int eqIndex = argument.indexOf('='); | |
| 220 String name = argument.substring(2, eqIndex); | |
| 221 String value = argument.substring(eqIndex + 1); | |
| 222 environment[name] = value; | |
| 223 } | |
| 224 | |
| 225 setCategories(String argument) { | |
| 226 List<String> categories = extractParameter(argument).split(','); | |
| 227 Set<String> allowedCategories = | |
| 228 LIBRARIES.values.map((x) => x.category).toSet(); | |
| 229 allowedCategories.remove('Shared'); | |
| 230 allowedCategories.remove('Internal'); | |
| 231 List<String> allowedCategoriesList = | |
| 232 new List<String>.from(allowedCategories); | |
| 233 allowedCategoriesList.sort(); | |
| 234 if (categories.contains('all')) { | |
| 235 categories = allowedCategoriesList; | |
| 236 } else { | |
| 237 String allowedCategoriesString = allowedCategoriesList.join(', '); | |
| 238 for (String category in categories) { | |
| 239 if (!allowedCategories.contains(category)) { | |
| 240 fail('Unsupported library category "$category", ' | |
| 241 'supported categories are: $allowedCategoriesString'); | |
| 242 } | |
| 243 } | |
| 244 } | |
| 245 passThrough('--categories=${categories.join(",")}'); | |
| 246 } | |
| 247 | |
| 248 void handleThrowOnError(String argument) { | |
| 249 diagnosticHandler.throwOnError = true; | |
| 250 String parameter = extractParameter(argument, isOptionalArgument: true); | |
| 251 if (parameter != null) { | |
| 252 diagnosticHandler.throwOnErrorCount = int.parse(parameter); | |
| 253 } | |
| 254 } | |
| 255 | |
| 256 handleShortOptions(String argument) { | |
| 257 var shortOptions = argument.substring(1).split(""); | |
| 258 for (var shortOption in shortOptions) { | |
| 259 switch (shortOption) { | |
| 260 case 'v': | |
| 261 setVerbose(null); | |
| 262 break; | |
| 263 case 'h': | |
| 264 case '?': | |
| 265 wantHelp = true; | |
| 266 break; | |
| 267 case 'c': | |
| 268 setCheckedMode('--enable-checked-mode'); | |
| 269 break; | |
| 270 case 'm': | |
| 271 implyCompilation('--minify'); | |
| 272 break; | |
| 273 default: | |
| 274 throw 'Internal error: "$shortOption" did not match'; | |
| 275 } | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 List<String> arguments = <String>[]; | |
| 280 List<OptionHandler> handlers = <OptionHandler>[ | |
| 281 new OptionHandler('-[chvm?]+', handleShortOptions), | |
| 282 new OptionHandler('--throw-on-error(?:=[0-9]+)?', handleThrowOnError), | |
| 283 new OptionHandler('--suppress-warnings', (_) { | |
| 284 diagnosticHandler.showWarnings = false; | |
| 285 passThrough('--suppress-warnings'); | |
| 286 }), | |
| 287 new OptionHandler('--suppress-hints', | |
| 288 (_) => diagnosticHandler.showHints = false), | |
| 289 new OptionHandler( | |
| 290 '--output-type=dart|--output-type=dart-multi|--output-type=js', | |
| 291 setOutputType), | |
| 292 new OptionHandler('--verbose', setVerbose), | |
| 293 new OptionHandler('--version', (_) => wantVersion = true), | |
| 294 new OptionHandler('--library-root=.+', setLibraryRoot), | |
| 295 new OptionHandler('--out=.+|-o.*', setOutput, multipleArguments: true), | |
| 296 new OptionHandler('--allow-mock-compilation', passThrough), | |
| 297 new OptionHandler('--minify|-m', implyCompilation), | |
| 298 new OptionHandler('--preserve-uris', passThrough), | |
| 299 new OptionHandler('--force-strip=.*', setStrip), | |
| 300 new OptionHandler('--disable-diagnostic-colors', | |
| 301 (_) => diagnosticHandler.enableColors = false), | |
| 302 new OptionHandler('--enable-diagnostic-colors', | |
| 303 (_) => diagnosticHandler.enableColors = true), | |
| 304 new OptionHandler('--enable[_-]checked[_-]mode|--checked', | |
| 305 (_) => setCheckedMode('--enable-checked-mode')), | |
| 306 new OptionHandler('--enable-concrete-type-inference', | |
| 307 (_) => implyCompilation( | |
| 308 '--enable-concrete-type-inference')), | |
| 309 new OptionHandler('--trust-type-annotations', | |
| 310 (_) => setTrustTypeAnnotations( | |
| 311 '--trust-type-annotations')), | |
| 312 new OptionHandler(r'--help|/\?|/h', (_) => wantHelp = true), | |
| 313 new OptionHandler('--package-root=.+|-p.+', setPackageRoot), | |
| 314 new OptionHandler('--analyze-all', setAnalyzeAll), | |
| 315 new OptionHandler('--analyze-only', setAnalyzeOnly), | |
| 316 new OptionHandler('--analyze-signatures-only', setAnalyzeOnly), | |
| 317 new OptionHandler('--disable-native-live-type-analysis', passThrough), | |
| 318 new OptionHandler('--categories=.*', setCategories), | |
| 319 new OptionHandler('--disable-type-inference', implyCompilation), | |
| 320 new OptionHandler('--terse', passThrough), | |
| 321 new OptionHandler('--dump-info', implyCompilation), | |
| 322 new OptionHandler('--disallow-unsafe-eval', | |
| 323 (_) => hasDisallowUnsafeEval = true), | |
| 324 new OptionHandler('--show-package-warnings', passThrough), | |
| 325 new OptionHandler('--csp', passThrough), | |
| 326 new OptionHandler('--enable-async', setEnableAsync), | |
| 327 new OptionHandler('-D.+=.*', addInEnvironment), | |
| 328 | |
| 329 // The following two options must come last. | |
| 330 new OptionHandler('-.*', (String argument) { | |
| 331 helpAndFail("Unknown option '$argument'."); | |
| 332 }), | |
| 333 new OptionHandler('.*', (String argument) { | |
| 334 arguments.add(nativeToUriPath(argument)); | |
| 335 }) | |
| 336 ]; | |
| 337 | |
| 338 parseCommandLine(handlers, argv); | |
| 339 if (wantHelp || wantVersion) { | |
| 340 helpAndExit(wantHelp, wantVersion, diagnosticHandler.verbose); | |
| 341 } | |
| 342 | |
| 343 if (hasDisallowUnsafeEval) { | |
| 344 String precompiledName = | |
| 345 relativize(currentDirectory, | |
| 346 RandomAccessFileOutputProvider.computePrecompiledUri(out), | |
| 347 Platform.isWindows); | |
| 348 helpAndFail("Option '--disallow-unsafe-eval' has been removed." | |
| 349 " Instead, the compiler generates a file named" | |
| 350 " '$precompiledName'."); | |
| 351 } | |
| 352 | |
| 353 if (outputLanguage != OUTPUT_LANGUAGE_DART && stripArgumentSet) { | |
| 354 helpAndFail("Option '--force-strip' may only be used with " | |
| 355 "'--output-type=dart'."); | |
| 356 } | |
| 357 if (arguments.isEmpty) { | |
| 358 helpAndFail('No Dart file specified.'); | |
| 359 } | |
| 360 if (arguments.length > 1) { | |
| 361 var extra = arguments.sublist(1); | |
| 362 helpAndFail('Extra arguments: ${extra.join(" ")}'); | |
| 363 } | |
| 364 | |
| 365 if (checkedMode && trustTypeAnnotations) { | |
| 366 helpAndFail("Option '--trust-type-annotations' may not be used in " | |
| 367 "checked mode."); | |
| 368 } | |
| 369 | |
| 370 Uri uri = currentDirectory.resolve(arguments[0]); | |
| 371 if (packageRoot == null) { | |
| 372 packageRoot = uri.resolve('./packages/'); | |
| 373 } | |
| 374 | |
| 375 if ((analyzeOnly || analyzeAll) && !optionsImplyCompilation.isEmpty) { | |
| 376 if (!analyzeOnly) { | |
| 377 diagnosticHandler.info( | |
| 378 "Option '--analyze-all' implies '--analyze-only'.", | |
| 379 api.Diagnostic.INFO); | |
| 380 } | |
| 381 diagnosticHandler.info( | |
| 382 "Options $optionsImplyCompilation indicate that output is expected, " | |
| 383 "but compilation is turned off by the option '--analyze-only'.", | |
| 384 api.Diagnostic.INFO); | |
| 385 } | |
| 386 if (analyzeAll) analyzeOnly = true; | |
| 387 if (enableAsyncAwait && !analyzeOnly) { | |
| 388 helpAndFail("Option '--enable-async' is currently only supported in " | |
| 389 "combination with the '--analyze-only' option."); | |
| 390 } | |
| 391 | |
| 392 diagnosticHandler.info('Package root is $packageRoot'); | |
| 393 | |
| 394 options.add('--out=$out'); | |
| 395 options.add('--source-map=$sourceMapOut'); | |
| 396 | |
| 397 RandomAccessFileOutputProvider outputProvider = | |
| 398 new RandomAccessFileOutputProvider( | |
| 399 out, sourceMapOut, onInfo: diagnosticHandler.info, onFailure: fail); | |
| 400 | |
| 401 compilationDone(String code) { | |
| 402 if (analyzeOnly) return; | |
| 403 if (code == null) { | |
| 404 fail('Compilation failed.'); | |
| 405 } | |
| 406 writeString(Uri.parse('$out.deps'), | |
| 407 getDepsOutput(inputProvider.sourceFiles)); | |
| 408 diagnosticHandler.info( | |
| 409 'Compiled ${inputProvider.dartCharactersRead} characters Dart ' | |
| 410 '-> ${outputProvider.totalCharactersWritten} characters ' | |
| 411 '$outputLanguage in ' | |
| 412 '${relativize(currentDirectory, out, Platform.isWindows)}'); | |
| 413 if (diagnosticHandler.verbose) { | |
| 414 String input = uriPathToNative(arguments[0]); | |
| 415 print('Dart file ($input) compiled to $outputLanguage.'); | |
| 416 print('Wrote the following files:'); | |
| 417 for (String filename in outputProvider.allOutputFiles) { | |
| 418 print(" $filename"); | |
| 419 } | |
| 420 } else if (!explicitOut) { | |
| 421 String input = uriPathToNative(arguments[0]); | |
| 422 String output = relativize(currentDirectory, out, Platform.isWindows); | |
| 423 print('Dart file ($input) compiled to $outputLanguage: $output'); | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 return compileFunc(uri, libraryRoot, packageRoot, | |
| 428 inputProvider, diagnosticHandler, | |
| 429 options, outputProvider, environment) | |
| 430 .then(compilationDone); | |
| 431 } | |
| 432 | |
| 433 class AbortLeg { | |
| 434 final message; | |
| 435 AbortLeg(this.message); | |
| 436 toString() => 'Aborted due to --throw-on-error: $message'; | |
| 437 } | |
| 438 | |
| 439 void writeString(Uri uri, String text) { | |
| 440 if (uri.scheme != 'file') { | |
| 441 fail('Unhandled scheme ${uri.scheme}.'); | |
| 442 } | |
| 443 var file = new File(uri.toFilePath()).openSync(mode: FileMode.WRITE); | |
| 444 file.writeStringSync(text); | |
| 445 file.closeSync(); | |
| 446 } | |
| 447 | |
| 448 void fail(String message) { | |
| 449 if (diagnosticHandler != null) { | |
| 450 diagnosticHandler.diagnosticHandler( | |
| 451 null, -1, -1, message, api.Diagnostic.ERROR); | |
| 452 } else { | |
| 453 print('Error: $message'); | |
| 454 } | |
| 455 exitFunc(1); | |
| 456 } | |
| 457 | |
| 458 Future compilerMain(List<String> arguments) { | |
| 459 var root = uriPathToNative("/$LIBRARY_ROOT"); | |
| 460 arguments = <String>['--library-root=${Platform.script.toFilePath()}$root'] | |
| 461 ..addAll(arguments); | |
| 462 return compile(arguments); | |
| 463 } | |
| 464 | |
| 465 void help() { | |
| 466 // This message should be no longer than 20 lines. The default | |
| 467 // terminal size normally 80x24. Two lines are used for the prompts | |
| 468 // before and after running the compiler. Another two lines may be | |
| 469 // used to print an error message. | |
| 470 print(''' | |
| 471 Usage: dart2js [options] dartfile | |
| 472 | |
| 473 Compiles Dart to JavaScript. | |
| 474 | |
| 475 Common options: | |
| 476 -o <file> Generate the output into <file>. | |
| 477 -c Insert runtime type checks and enable assertions (checked mode). | |
| 478 -m Generate minified output. | |
| 479 -h Display this message (add -v for information about all options).''')
; | |
| 480 } | |
| 481 | |
| 482 void verboseHelp() { | |
| 483 print(r''' | |
| 484 Usage: dart2js [options] dartfile | |
| 485 | |
| 486 Compiles Dart to JavaScript. | |
| 487 | |
| 488 Supported options: | |
| 489 -o <file>, --out=<file> | |
| 490 Generate the output into <file>. | |
| 491 | |
| 492 -c, --enable-checked-mode, --checked | |
| 493 Insert runtime type checks and enable assertions (checked mode). | |
| 494 | |
| 495 -m, --minify | |
| 496 Generate minified output. | |
| 497 | |
| 498 -h, /h, /?, --help | |
| 499 Display this message (add -v for information about all options). | |
| 500 | |
| 501 -v, --verbose | |
| 502 Display verbose information. | |
| 503 | |
| 504 -D<name>=<value> | |
| 505 Define an environment variable. | |
| 506 | |
| 507 --version | |
| 508 Display version information. | |
| 509 | |
| 510 -p<path>, --package-root=<path> | |
| 511 Where to find packages, that is, "package:..." imports. | |
| 512 | |
| 513 --analyze-all | |
| 514 Analyze all code. Without this option, the compiler only analyzes | |
| 515 code that is reachable from [main]. This option implies --analyze-only. | |
| 516 | |
| 517 --analyze-only | |
| 518 Analyze but do not generate code. | |
| 519 | |
| 520 --analyze-signatures-only | |
| 521 Skip analysis of method bodies and field initializers. This option implies | |
| 522 --analyze-only. | |
| 523 | |
| 524 --suppress-warnings | |
| 525 Do not display any warnings. | |
| 526 | |
| 527 --suppress-hints | |
| 528 Do not display any hints. | |
| 529 | |
| 530 --enable-diagnostic-colors | |
| 531 Add colors to diagnostic messages. | |
| 532 | |
| 533 --terse | |
| 534 Emit diagnostics without suggestions for how to get rid of the diagnosed | |
| 535 problems. | |
| 536 | |
| 537 --show-package-warnings | |
| 538 Show warnings and hints generated from packages. | |
| 539 | |
| 540 --preserve-uris | |
| 541 Preserve the source URIs in the reflection data. Without this flag the | |
| 542 `uri` getter for `LibraryMirror`s is mangled in minified mode. | |
| 543 | |
| 544 --csp | |
| 545 Disables dynamic generation of code in the generated output. This is | |
| 546 necessary to satisfy CSP restrictions (see http://www.w3.org/TR/CSP/). | |
| 547 | |
| 548 The following options are only used for compiler development and may | |
| 549 be removed in a future version: | |
| 550 | |
| 551 --output-type=dart | |
| 552 Output Dart code instead of JavaScript. | |
| 553 | |
| 554 --throw-on-error | |
| 555 Throw an exception if a compile-time error is detected. | |
| 556 | |
| 557 --library-root=<directory> | |
| 558 Where to find the Dart platform libraries. | |
| 559 | |
| 560 --allow-mock-compilation | |
| 561 Do not generate a call to main if either of the following | |
| 562 libraries are used: dart:dom, dart:html dart:io. | |
| 563 | |
| 564 --enable-concrete-type-inference | |
| 565 Enable experimental concrete type inference. | |
| 566 | |
| 567 --disable-native-live-type-analysis | |
| 568 Disable the optimization that removes unused native types from dart:html | |
| 569 and related libraries. | |
| 570 | |
| 571 --categories=<categories> | |
| 572 A comma separated list of allowed library categories. The default | |
| 573 is "Client". Possible categories can be seen by providing an | |
| 574 unsupported category, for example, --categories=help. To enable | |
| 575 all categories, use --categories=all. | |
| 576 | |
| 577 --dump-info | |
| 578 Generates an out.info.json file with information about the generated code. | |
| 579 You can inspect the generated file with the viewer at: | |
| 580 https://dart-lang.github.io/dump-info-visualizer/ | |
| 581 | |
| 582 '''.trim()); | |
| 583 } | |
| 584 | |
| 585 void helpAndExit(bool wantHelp, bool wantVersion, bool verbose) { | |
| 586 if (wantVersion) { | |
| 587 var version = (BUILD_ID == null) | |
| 588 ? '<non-SDK build>' | |
| 589 : BUILD_ID; | |
| 590 print('Dart-to-JavaScript compiler (dart2js) version: $version'); | |
| 591 } | |
| 592 if (wantHelp) { | |
| 593 if (verbose) { | |
| 594 verboseHelp(); | |
| 595 } else { | |
| 596 help(); | |
| 597 } | |
| 598 } | |
| 599 exitFunc(0); | |
| 600 } | |
| 601 | |
| 602 void helpAndFail(String message) { | |
| 603 help(); | |
| 604 print(''); | |
| 605 fail(message); | |
| 606 } | |
| 607 | |
| 608 void main(List<String> arguments) { | |
| 609 // Since the sdk/bin/dart2js script adds its own arguments in front of | |
| 610 // user-supplied arguments we search for '--batch' at the end of the list. | |
| 611 if (arguments.length > 0 && arguments.last == "--batch") { | |
| 612 batchMain(arguments.sublist(0, arguments.length - 1)); | |
| 613 return; | |
| 614 } | |
| 615 internalMain(arguments); | |
| 616 } | |
| 617 | |
| 618 var exitFunc = exit; | |
| 619 var compileFunc = api.compile; | |
| 620 | |
| 621 Future internalMain(List<String> arguments) { | |
| 622 onError(exception, trace) { | |
| 623 try { | |
| 624 print('The compiler crashed: $exception'); | |
| 625 } catch (ignored) { | |
| 626 print('The compiler crashed: error while printing exception'); | |
| 627 } | |
| 628 | |
| 629 try { | |
| 630 if (trace != null) { | |
| 631 print(trace); | |
| 632 } | |
| 633 } finally { | |
| 634 exitFunc(253); // 253 is recognized as a crash by our test scripts. | |
| 635 } | |
| 636 } | |
| 637 | |
| 638 try { | |
| 639 return compilerMain(arguments).catchError(onError); | |
| 640 } catch (exception, trace) { | |
| 641 onError(exception, trace); | |
| 642 return new Future.value(); | |
| 643 } | |
| 644 } | |
| 645 | |
| 646 const _EXIT_SIGNAL = const Object(); | |
| 647 | |
| 648 void batchMain(List<String> batchArguments) { | |
| 649 int exitCode; | |
| 650 exitFunc = (errorCode) { | |
| 651 // Since we only throw another part of the compiler might intercept our | |
| 652 // exception and try to exit with a different code. | |
| 653 if (exitCode == 0) { | |
| 654 exitCode = errorCode; | |
| 655 } | |
| 656 throw _EXIT_SIGNAL; | |
| 657 }; | |
| 658 | |
| 659 var stream = stdin.transform(UTF8.decoder).transform(new LineSplitter()); | |
| 660 var subscription; | |
| 661 subscription = stream.listen((line) { | |
| 662 new Future.sync(() { | |
| 663 subscription.pause(); | |
| 664 exitCode = 0; | |
| 665 if (line == null) exit(0); | |
| 666 List<String> args = <String>[]; | |
| 667 args.addAll(batchArguments); | |
| 668 args.addAll(splitLine(line, windows: Platform.isWindows)); | |
| 669 return internalMain(args); | |
| 670 }).catchError((exception, trace) { | |
| 671 if (!identical(exception, _EXIT_SIGNAL)) { | |
| 672 exitCode = 253; | |
| 673 } | |
| 674 }).whenComplete(() { | |
| 675 // The testing framework waits for a status line on stdout and | |
| 676 // stderr before moving to the next test. | |
| 677 if (exitCode == 0){ | |
| 678 print(">>> TEST OK"); | |
| 679 } else if (exitCode == 253) { | |
| 680 print(">>> TEST CRASH"); | |
| 681 } else { | |
| 682 print(">>> TEST FAIL"); | |
| 683 } | |
| 684 stderr.writeln(">>> EOF STDERR"); | |
| 685 subscription.resume(); | |
| 686 }); | |
| 687 }); | |
| 688 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 694353007:
Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart