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| 1 // Copyright (c) 2014, 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 fletchc.test.feature_test; | |
| 6 | |
| 7 import 'dart:io' hide | |
| 8 exitCode, | |
| 9 stderr, | |
| 10 stdin, | |
| 11 stdout; | |
| 12 | |
| 13 import 'dart:io' as io; | |
| 14 | |
| 15 import 'dart:async' show | |
| 16 Completer, | |
| 17 Future, | |
| 18 Stream, | |
| 19 StreamController, | |
| 20 StreamIterator; | |
| 21 | |
| 22 import 'dart:convert' show | |
| 23 LineSplitter, | |
| 24 UTF8, | |
| 25 Utf8Decoder; | |
| 26 | |
| 27 import 'package:expect/expect.dart' show | |
| 28 Expect; | |
| 29 | |
| 30 import 'package:fletchc/incremental/scope_information_visitor.dart' show | |
| 31 ScopeInformationVisitor; | |
| 32 | |
| 33 import 'compiler_test_case.dart' show | |
| 34 CompilerTestCase; | |
| 35 | |
| 36 import 'package:compiler/src/elements/elements.dart' show | |
| 37 AbstractFieldElement, | |
| 38 Element, | |
| 39 FieldElement, | |
| 40 FunctionElement, | |
| 41 LibraryElement; | |
| 42 | |
| 43 import 'package:compiler/src/compiler.dart' show | |
| 44 Compiler; | |
| 45 | |
| 46 import 'package:compiler/src/source_file_provider.dart' show | |
| 47 FormattingDiagnosticHandler, | |
| 48 SourceFileProvider; | |
| 49 | |
| 50 import 'package:compiler/src/io/source_file.dart' show | |
| 51 StringSourceFile; | |
| 52 | |
| 53 import 'package:fletchc/incremental/fletchc_incremental.dart' show | |
| 54 IncrementalCompilationFailed, | |
| 55 IncrementalCompiler, | |
| 56 IncrementalMode; | |
| 57 | |
| 58 import 'package:fletchc/vm_commands.dart' show | |
| 59 VmCommand, | |
| 60 CommitChanges, | |
| 61 CommitChangesResult, | |
| 62 HandShakeResult, | |
| 63 MapId; | |
| 64 | |
| 65 import 'package:fletchc/fletch_compiler.dart' show | |
| 66 FletchCompiler; | |
| 67 | |
| 68 import 'package:fletchc/src/fletch_compiler_implementation.dart' show | |
| 69 OutputProvider; | |
| 70 | |
| 71 import 'package:fletchc/src/guess_configuration.dart' show | |
| 72 fletchVersion, | |
| 73 guessFletchVm; | |
| 74 | |
| 75 import 'package:fletchc/fletch_system.dart'; | |
| 76 | |
| 77 import 'package:fletchc/vm_commands.dart' as commands_lib; | |
| 78 | |
| 79 import 'package:fletchc/vm_session.dart' show | |
| 80 Session; | |
| 81 | |
| 82 import 'package:fletchc/src/fletch_backend.dart' show | |
| 83 FletchBackend; | |
| 84 | |
| 85 import 'package:fletchc/fletch_vm.dart' show | |
| 86 FletchVm; | |
| 87 | |
| 88 import 'package:fletchc/debug_state.dart' as debug show | |
| 89 BackTraceFrame, | |
| 90 BackTrace; | |
| 91 | |
| 92 import 'program_result.dart'; | |
| 93 | |
| 94 import 'package:fletchc/src/hub/exit_codes.dart' show | |
| 95 DART_VM_EXITCODE_COMPILE_TIME_ERROR; | |
| 96 | |
| 97 const String PACKAGE_SCHEME = 'org.dartlang.fletch.packages'; | |
| 98 | |
| 99 const String CUSTOM_SCHEME = 'org.dartlang.fletch.test-case'; | |
| 100 | |
| 101 final Uri customUriBase = new Uri(scheme: CUSTOM_SCHEME, path: '/'); | |
| 102 | |
| 103 typedef Future NoArgFuture(); | |
| 104 | |
| 105 compileAndRun( | |
| 106 String testName, | |
| 107 EncodedResult encodedResult, | |
| 108 {IncrementalMode incrementalMode}) async { | |
| 109 print("Test '$testName'"); | |
| 110 IncrementalTestHelper helper = new IncrementalTestHelper(incrementalMode); | |
| 111 TestSession session = | |
| 112 await TestSession.spawnVm(helper.compiler, testName: testName); | |
| 113 | |
| 114 bool hasCompileTimeError = false; | |
| 115 | |
| 116 await new Future(() async { | |
| 117 | |
| 118 int version = 0; | |
| 119 | |
| 120 for (ProgramResult program in encodedResult.decode()) { | |
| 121 bool isFirstProgram = version == 0; | |
| 122 version++; | |
| 123 | |
| 124 if (!program.compileUpdatesShouldThrow) { | |
| 125 // We should only update the status of hasCompileTimeError when we run | |
| 126 // something on the VM. | |
| 127 hasCompileTimeError = program.hasCompileTimeError; | |
| 128 } | |
| 129 | |
| 130 print("Program version $version #$testName:"); | |
| 131 print(numberedLines(program.code)); | |
| 132 | |
| 133 bool compileUpdatesThrew = true; | |
| 134 FletchDelta fletchDelta; | |
| 135 if (isFirstProgram) { | |
| 136 // The first program is compiled "fully". | |
| 137 fletchDelta = await helper.fullCompile(program); | |
| 138 compileUpdatesThrew = false; | |
| 139 } else { | |
| 140 // An update to the first program, all updates are compiled as | |
| 141 // incremental updates to the first program. | |
| 142 try { | |
| 143 fletchDelta = await helper.incrementalCompile(program, version); | |
| 144 compileUpdatesThrew = false; | |
| 145 } on IncrementalCompilationFailed catch (error) { | |
| 146 if (program.compileUpdatesShouldThrow) { | |
| 147 print("Expected error in compileUpdates: $error"); | |
| 148 } else { | |
| 149 print("Unexpected error in compileUpdates."); | |
| 150 rethrow; | |
| 151 } | |
| 152 } | |
| 153 } | |
| 154 | |
| 155 FletchBackend backend = helper.compiler.compiler.context.backend; | |
| 156 | |
| 157 if (program.compileUpdatesShouldThrow) { | |
| 158 Expect.isFalse(isFirstProgram); | |
| 159 Expect.isTrue( | |
| 160 compileUpdatesThrew, | |
| 161 "Expected an exception in compileUpdates"); | |
| 162 Expect.isNull(fletchDelta, "Expected update == null"); | |
| 163 break; | |
| 164 } | |
| 165 | |
| 166 if (!isFirstProgram || | |
| 167 const bool.fromEnvironment("feature_test.print_initial_commands")) { | |
| 168 for (VmCommand command in fletchDelta.commands) { | |
| 169 print(command); | |
| 170 } | |
| 171 } | |
| 172 | |
| 173 if (isFirstProgram) { | |
| 174 // Perform handshake with VM. | |
| 175 HandShakeResult handShakeResult = | |
| 176 await session.handShake(fletchVersion); | |
| 177 Expect.isTrue(handShakeResult.success, "Fletch VM version mismatch"); | |
| 178 } | |
| 179 | |
| 180 CommitChangesResult result = await session.applyDelta(fletchDelta); | |
| 181 | |
| 182 if (!result.successful) { | |
| 183 print("The CommitChanges() command was not successful: " | |
| 184 "${result.message}"); | |
| 185 } | |
| 186 | |
| 187 Expect.equals(result.successful, !program.commitChangesShouldFail, | |
| 188 result.message); | |
| 189 | |
| 190 if (isFirstProgram) { | |
| 191 // Turn on debugging. | |
| 192 await session.enableDebugger(); | |
| 193 // Spawn the process to run. | |
| 194 await session.spawnProcess(); | |
| 195 // Allow operations on internal frames. | |
| 196 await session.toggleInternal(); | |
| 197 } | |
| 198 | |
| 199 if (result.successful) { | |
| 200 // Set breakpoint in main in case main was replaced. | |
| 201 var breakpoints = | |
| 202 await session.setBreakpoint(methodName: "main", bytecodeIndex: 0); | |
| 203 for (var breakpoint in breakpoints) { | |
| 204 print("Added breakpoint: $breakpoint"); | |
| 205 } | |
| 206 if (!helper.compiler.compiler.mainFunction.isMalformed) { | |
| 207 // If there's a syntax error in main, we cannot find it to set a | |
| 208 // breakpoint. | |
| 209 // TODO(ahe): Consider if this is a problem? | |
| 210 Expect.equals(1, breakpoints.length); | |
| 211 } | |
| 212 if (isFirstProgram) { | |
| 213 // Run the program to hit the breakpoint in main. | |
| 214 await session.debugRun(); | |
| 215 } else { | |
| 216 // Restart the current frame to rerun main. | |
| 217 await session.restart(); | |
| 218 } | |
| 219 if (session.running) { | |
| 220 // Step out of main to finish execution of main. | |
| 221 await session.stepOut(); | |
| 222 } | |
| 223 | |
| 224 // Select the stack frame of callMain. | |
| 225 debug.BackTrace trace = await session.backTrace(); | |
| 226 FunctionElement callMainElement = | |
| 227 backend.fletchSystemLibrary.findLocal("callMain"); | |
| 228 FletchFunction callMain = | |
| 229 helper.system.lookupFunctionByElement(callMainElement); | |
| 230 debug.BackTraceFrame mainFrame = | |
| 231 trace.frames.firstWhere( | |
| 232 (debug.BackTraceFrame frame) => frame.function == callMain); | |
| 233 int frame = trace.frames.indexOf(mainFrame); | |
| 234 Expect.notEquals(1, frame); | |
| 235 session.selectFrame(frame); | |
| 236 print(trace.format()); | |
| 237 | |
| 238 List<String> actualMessages = session.stdoutSink.takeLines(); | |
| 239 | |
| 240 List<String> messages = new List<String>.from(program.messages); | |
| 241 if (program.hasCompileTimeError) { | |
| 242 print("Compile-time error expected"); | |
| 243 // TODO(ahe): The compile-time error message shouldn't be printed by | |
| 244 // the Fletch VM. | |
| 245 | |
| 246 // Find the compile-time error message in the actual output, and | |
| 247 // remove all lines after it. | |
| 248 int compileTimeErrorIndex = -1; | |
| 249 for (int i = 0; i < actualMessages.length; i++) { | |
| 250 if (actualMessages[i].startsWith("Compile error:")) { | |
| 251 compileTimeErrorIndex = i; | |
| 252 break; | |
| 253 } | |
| 254 } | |
| 255 Expect.isTrue(compileTimeErrorIndex != -1); | |
| 256 actualMessages.removeRange(compileTimeErrorIndex, | |
| 257 actualMessages.length); | |
| 258 } | |
| 259 | |
| 260 Expect.listEquals(messages, actualMessages, | |
| 261 "Expected $messages, got $actualMessages"); | |
| 262 | |
| 263 // TODO(ahe): Enable SerializeScopeTestCase for multiple parts. | |
| 264 if (!isFirstProgram && program.code is String) { | |
| 265 await new SerializeScopeTestCase( | |
| 266 program.code, helper.compiler.mainApp, | |
| 267 helper.compiler.compiler).run(); | |
| 268 } | |
| 269 } | |
| 270 } | |
| 271 | |
| 272 // If everything went fine, we will try finishing the execution and do a | |
| 273 // graceful shutdown. | |
| 274 if (session.running) { | |
| 275 // The session is still alive. Run to completion. | |
| 276 var continueCommand = const commands_lib.ProcessContinue(); | |
| 277 print(continueCommand); | |
| 278 | |
| 279 // Wait for process termination. | |
| 280 VmCommand response = await session.runCommand(continueCommand); | |
| 281 if (response is! commands_lib.ProcessTerminated) { | |
| 282 // TODO(ahe): It's probably an instance of | |
| 283 // commands_lib.UncaughtException, and if so, we should try to print | |
| 284 // the stack trace. | |
| 285 throw new StateError( | |
| 286 "Expected ProcessTerminated, but got: $response"); | |
| 287 } | |
| 288 } | |
| 289 await session.runCommand(const commands_lib.SessionEnd()); | |
| 290 await session.shutdown(); | |
| 291 }).catchError(session.handleError); | |
| 292 | |
| 293 // TODO(ahe/kustermann/ager): We really need to distinguish VM crashes from | |
| 294 // normal test failures. This information is based on exitCode and we need | |
| 295 // to propagate the exitCode back to test.dart, so we can have Fail/Crash | |
| 296 // outcomes of these tests. | |
| 297 await session.waitForCompletion(); | |
| 298 | |
| 299 int actualExitCode = await session.exitCode; | |
| 300 // TODO(ahe): We should expect exit code 0, and instead be able to detect | |
| 301 // compile-time errors directly via the session. | |
| 302 int expectedExitCode = hasCompileTimeError | |
| 303 ? DART_VM_EXITCODE_COMPILE_TIME_ERROR : 0; | |
| 304 Expect.equals( | |
| 305 expectedExitCode, actualExitCode, "Unexpected exit code from fletch VM"); | |
| 306 } | |
| 307 | |
| 308 class SerializeScopeTestCase extends CompilerTestCase { | |
| 309 final String source; | |
| 310 | |
| 311 final String scopeInfo; | |
| 312 | |
| 313 final Compiler compiler = null; // TODO(ahe): Provide a compiler. | |
| 314 | |
| 315 SerializeScopeTestCase( | |
| 316 this.source, | |
| 317 LibraryElement library, | |
| 318 Compiler compiler) | |
| 319 : scopeInfo = computeScopeInfo(compiler, library), | |
| 320 super(library.canonicalUri); | |
| 321 | |
| 322 Future run() { | |
| 323 if (true) { | |
| 324 // TODO(ahe): Remove this. We're temporarily bypassing scope validation. | |
| 325 return new Future.value(null); | |
| 326 } | |
| 327 return loadMainApp().then(checkScopes); | |
| 328 } | |
| 329 | |
| 330 void checkScopes(LibraryElement library) { | |
| 331 var compiler = null; | |
| 332 Expect.stringEquals(computeScopeInfo(compiler, library), scopeInfo); | |
| 333 } | |
| 334 | |
| 335 Future<LibraryElement> loadMainApp() async { | |
| 336 LibraryElement library = | |
| 337 await compiler.libraryLoader.loadLibrary(scriptUri); | |
| 338 if (compiler.mainApp == null) { | |
| 339 compiler.mainApp = library; | |
| 340 } else if (compiler.mainApp != library) { | |
| 341 throw "Inconsistent use of compiler (${compiler.mainApp} != $library)."; | |
| 342 } | |
| 343 return library; | |
| 344 } | |
| 345 | |
| 346 static String computeScopeInfo(Compiler compiler, LibraryElement library) { | |
| 347 ScopeInformationVisitor visitor = | |
| 348 new ScopeInformationVisitor(compiler, library, 0); | |
| 349 | |
| 350 visitor.ignoreImports = true; | |
| 351 visitor.sortMembers = true; | |
| 352 visitor.indented.write('[\n'); | |
| 353 visitor.indentationLevel++; | |
| 354 visitor.indented; | |
| 355 library.accept(visitor, null); | |
| 356 library.forEachLocalMember((Element member) { | |
| 357 if (member.isClass) { | |
| 358 visitor.buffer.write(',\n'); | |
| 359 visitor.indented; | |
| 360 member.accept(visitor, null); | |
| 361 } | |
| 362 }); | |
| 363 visitor.buffer.write('\n'); | |
| 364 visitor.indentationLevel--; | |
| 365 visitor.indented.write(']'); | |
| 366 return '${visitor.buffer}'; | |
| 367 } | |
| 368 } | |
| 369 | |
| 370 void logger(x) { | |
| 371 print(x); | |
| 372 } | |
| 373 | |
| 374 String numberedLines(code) { | |
| 375 if (code is! Map) { | |
| 376 code = {'main.dart': code}; | |
| 377 } | |
| 378 StringBuffer result = new StringBuffer(); | |
| 379 code.forEach((String fileName, String code) { | |
| 380 result.writeln("==> $fileName <=="); | |
| 381 int lineNumber = 1; | |
| 382 for (String text in splitLines(code)) { | |
| 383 result.write("$lineNumber: $text"); | |
| 384 lineNumber++; | |
| 385 } | |
| 386 }); | |
| 387 return '$result'; | |
| 388 } | |
| 389 | |
| 390 List<String> splitLines(String text) { | |
| 391 return text.split(new RegExp('^', multiLine: true)); | |
| 392 } | |
| 393 | |
| 394 class TestSession extends Session { | |
| 395 final Process process; | |
| 396 final StreamIterator stdoutIterator; | |
| 397 final Stream<String> stderr; | |
| 398 | |
| 399 final List<Future> futures; | |
| 400 | |
| 401 final Future<int> exitCode; | |
| 402 | |
| 403 bool isWaitingForCompletion = false; | |
| 404 | |
| 405 TestSession( | |
| 406 Socket vmSocket, | |
| 407 IncrementalCompiler compiler, | |
| 408 this.process, | |
| 409 this.stdoutIterator, | |
| 410 this.stderr, | |
| 411 this.futures, | |
| 412 this.exitCode) | |
| 413 : super(vmSocket, compiler, new BytesSink(), null); | |
| 414 | |
| 415 // Refines type of [stdoutSink]. | |
| 416 BytesSink get stdoutSink => super.stdoutSink; | |
| 417 | |
| 418 void writeStdout(String s) { | |
| 419 // Unfortunately, print will always add a newline, and the alternative is | |
| 420 // to use stdout.write. However, to make it easier to debug problems in | |
| 421 // this and other fletch_tests, everything that is printed to stdout ends | |
| 422 // up on the console of test.dart. This is good enough for testing, but DO | |
| 423 // NOT COPY TO PRODUCTION CODE. | |
| 424 print(s); | |
| 425 } | |
| 426 | |
| 427 void writeStdoutLine(String s) { | |
| 428 print(s); | |
| 429 } | |
| 430 | |
| 431 /// Add [future] to this session. All futures that can fail after calling | |
| 432 /// [waitForCompletion] must be added to the session. | |
| 433 void recordFuture(Future future) { | |
| 434 futures.add(convertErrorToString(future)); | |
| 435 } | |
| 436 | |
| 437 void addError(error, StackTrace stackTrace) { | |
| 438 recordFuture(new Future.error(error, stackTrace)); | |
| 439 } | |
| 440 | |
| 441 /// Waits for the VM to shutdown and any futures added with [add] to | |
| 442 /// complete, and report all errors that occurred. | |
| 443 Future waitForCompletion() async { | |
| 444 if (isWaitingForCompletion) { | |
| 445 throw "waitForCompletion called more than once."; | |
| 446 } | |
| 447 isWaitingForCompletion = true; | |
| 448 // [stderr] and [iterator] (stdout) must have active listeners before | |
| 449 // waiting for [futures] below to avoid a deadlock. | |
| 450 Future<List<String>> stderrFuture = stderr.toList(); | |
| 451 Future<List<String>> stdoutFuture = (() async { | |
| 452 List<String> result = <String>[]; | |
| 453 while (await stdoutIterator.moveNext()) { | |
| 454 result.add(stdoutIterator.current); | |
| 455 } | |
| 456 return result; | |
| 457 })(); | |
| 458 | |
| 459 StringBuffer sb = new StringBuffer(); | |
| 460 int problemCount = 0; | |
| 461 for (var error in await Future.wait(futures)) { | |
| 462 if (error != null) { | |
| 463 sb.writeln("Problem #${++problemCount}:"); | |
| 464 sb.writeln(error); | |
| 465 sb.writeln(""); | |
| 466 } | |
| 467 } | |
| 468 await stdoutFuture; | |
| 469 List<String> stdoutLines = stdoutSink.takeLines(); | |
| 470 List<String> stderrLines = await stderrFuture; | |
| 471 if (stdoutLines.isNotEmpty) { | |
| 472 sb.writeln("Problem #${++problemCount}:"); | |
| 473 sb.writeln("Unexpected stdout from fletch-vm:"); | |
| 474 for (String line in stdoutLines) { | |
| 475 sb.writeln(line); | |
| 476 } | |
| 477 sb.writeln(""); | |
| 478 } | |
| 479 if (stderrLines.isNotEmpty) { | |
| 480 sb.writeln("Problem #${++problemCount}:"); | |
| 481 sb.writeln("Unexpected stderr from fletch-vm:"); | |
| 482 for (String line in stderrLines) { | |
| 483 sb.writeln(line); | |
| 484 } | |
| 485 sb.writeln(""); | |
| 486 } | |
| 487 if (problemCount > 0) { | |
| 488 throw new StateError('Test has $problemCount problem(s). Details:\n$sb'); | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 static Future<String> convertErrorToString(Future future) { | |
| 493 return future.then((_) => null).catchError((error, stackTrace) { | |
| 494 return "$error\n$stackTrace"; | |
| 495 }); | |
| 496 } | |
| 497 | |
| 498 static Future<TestSession> spawnVm( | |
| 499 IncrementalCompiler compiler, | |
| 500 {String testName}) async { | |
| 501 String vmPath = guessFletchVm(null).toFilePath(); | |
| 502 | |
| 503 List<Future> futures = <Future>[]; | |
| 504 void recordFuture(String name, Future future) { | |
| 505 if (future != null) { | |
| 506 futures.add(convertErrorToString(future)); | |
| 507 } | |
| 508 } | |
| 509 | |
| 510 List<String> vmOptions = <String>[ | |
| 511 '-Xvalidate-heaps', | |
| 512 ]; | |
| 513 | |
| 514 print("Running '$vmPath ${vmOptions.join(" ")}'"); | |
| 515 var environment = getProcessEnvironment(testName); | |
| 516 FletchVm fletchVm = await FletchVm.start( | |
| 517 vmPath, arguments: vmOptions, environment: environment); | |
| 518 | |
| 519 // Unlike [fletchvm.stdoutLines] and [fletchvm.stderrLines], their | |
| 520 // corresponding controller cannot produce an error. | |
| 521 StreamController<String> stdoutController = new StreamController<String>(); | |
| 522 StreamController<String> stderrController = new StreamController<String>(); | |
| 523 recordFuture("stdout", fletchVm.stdoutLines.listen((String line) { | |
| 524 print('fletch_vm_stdout: $line'); | |
| 525 stdoutController.add(line); | |
| 526 }).asFuture().whenComplete(stdoutController.close)); | |
| 527 recordFuture("stderr", fletchVm.stderrLines.listen((String line) { | |
| 528 print('fletch_vm_stderr: $line'); | |
| 529 stderrController.add(line); | |
| 530 }).asFuture().whenComplete(stderrController.close)); | |
| 531 | |
| 532 Completer<int> exitCodeCompleter = new Completer<int>(); | |
| 533 | |
| 534 // TODO(ahe): If the VM crashes on startup, this will never complete. This | |
| 535 // makes this program hang forever. But the exitCode completer might | |
| 536 // actually be ready to give us a crashed exit code. Exiting early with a | |
| 537 // failure in case exitCode is ready before server.first or having a | |
| 538 // timeout on server.first would be possible solutions. | |
| 539 var vmSocket = await fletchVm.connect(); | |
| 540 recordFuture("vmSocket", vmSocket.done); | |
| 541 | |
| 542 TestSession session = new TestSession( | |
| 543 vmSocket, compiler, fletchVm.process, | |
| 544 new StreamIterator(stdoutController.stream), | |
| 545 stderrController.stream, | |
| 546 futures, exitCodeCompleter.future); | |
| 547 | |
| 548 recordFuture("exitCode", fletchVm.exitCode.then((int exitCode) { | |
| 549 print("VM exited with exit code: $exitCode."); | |
| 550 exitCodeCompleter.complete(exitCode); | |
| 551 })); | |
| 552 | |
| 553 return session; | |
| 554 } | |
| 555 | |
| 556 static Map<String, String> getProcessEnvironment(String testName) { | |
| 557 if (testName == null) return null; | |
| 558 | |
| 559 var environment = new Map.from(Platform.environment); | |
| 560 environment['FEATURE_TEST_TESTNAME'] = testName; | |
| 561 return environment; | |
| 562 } | |
| 563 | |
| 564 Future handleError(error, StackTrace stackTrace) { | |
| 565 addError(error, stackTrace); | |
| 566 | |
| 567 // We either failed before we got to start a process or there was an | |
| 568 // uncaught exception in the program. If there was an uncaught exception | |
| 569 // the VM is intentionally hanging to give the debugger a chance to inspect | |
| 570 // the state at the point of the throw. Therefore, we explicitly have to | |
| 571 // kill the VM process. Notice, it is important that we kill the VM before | |
| 572 // we close the socket to it. Otherwise, the VM may write a message on | |
| 573 // stderr claiming that the compiler died (due to the socket getting | |
| 574 // closed). | |
| 575 process.kill(); | |
| 576 | |
| 577 // After the process has been killed, we need to close the socket and | |
| 578 // discard any commands that may have arrived. | |
| 579 recordFuture(process.exitCode.then((_) => kill())); | |
| 580 | |
| 581 return waitForCompletion(); | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 class BytesSink implements Sink<List<int>> { | |
| 586 final BytesBuilder builder = new BytesBuilder(); | |
| 587 | |
| 588 void add(List<int> data) => builder.add(data); | |
| 589 | |
| 590 void close() { | |
| 591 } | |
| 592 | |
| 593 List<String> takeLines() { | |
| 594 return new LineSplitter().convert(UTF8.decode(builder.takeBytes())); | |
| 595 } | |
| 596 } | |
| 597 | |
| 598 class IncrementalTestHelper { | |
| 599 final Uri packageConfig; | |
| 600 | |
| 601 final IoInputProvider inputProvider; | |
| 602 | |
| 603 final IncrementalCompiler compiler; | |
| 604 | |
| 605 FletchSystem system; | |
| 606 | |
| 607 IncrementalTestHelper.internal( | |
| 608 this.packageConfig, | |
| 609 this.inputProvider, | |
| 610 this.compiler); | |
| 611 | |
| 612 factory IncrementalTestHelper(IncrementalMode incrementalMode) { | |
| 613 Uri packageConfig = Uri.base.resolve('.packages'); | |
| 614 IoInputProvider inputProvider = new IoInputProvider(packageConfig); | |
| 615 FormattingDiagnosticHandler diagnosticHandler = | |
| 616 new FormattingDiagnosticHandler(inputProvider); | |
| 617 IncrementalCompiler compiler = new IncrementalCompiler( | |
| 618 packageConfig: packageConfig, | |
| 619 inputProvider: inputProvider, | |
| 620 diagnosticHandler: diagnosticHandler, | |
| 621 outputProvider: new OutputProvider(), | |
| 622 support: incrementalMode, | |
| 623 platform: "fletch_mobile.platform"); | |
| 624 return new IncrementalTestHelper.internal( | |
| 625 packageConfig, | |
| 626 inputProvider, | |
| 627 compiler); | |
| 628 } | |
| 629 | |
| 630 Future<FletchDelta> fullCompile(ProgramResult program) async { | |
| 631 Map<String, String> code = computeCode(program); | |
| 632 inputProvider.sources.clear(); | |
| 633 code.forEach((String name, String code) { | |
| 634 inputProvider.sources[customUriBase.resolve(name)] = code; | |
| 635 }); | |
| 636 | |
| 637 await compiler.compile(customUriBase.resolve('main.dart'), customUriBase); | |
| 638 FletchDelta delta = compiler.compiler.context.backend.computeDelta(); | |
| 639 system = delta.system; | |
| 640 return delta; | |
| 641 } | |
| 642 | |
| 643 Future<FletchDelta> incrementalCompile( | |
| 644 ProgramResult program, | |
| 645 int version) async { | |
| 646 Map<String, String> code = computeCode(program); | |
| 647 Map<Uri, Uri> uriMap = <Uri, Uri>{}; | |
| 648 for (String name in code.keys) { | |
| 649 Uri uri = customUriBase.resolve('$name?v$version'); | |
| 650 inputProvider.cachedSources[uri] = new Future.value(code[name]); | |
| 651 uriMap[customUriBase.resolve(name)] = uri; | |
| 652 } | |
| 653 FletchDelta delta = await compiler.compileUpdates( | |
| 654 system, uriMap, logVerbose: logger, logTime: logger); | |
| 655 system = delta.system; | |
| 656 return delta; | |
| 657 } | |
| 658 | |
| 659 Map<String, String> computeCode(ProgramResult program) { | |
| 660 return program.code is String | |
| 661 ? <String,String>{ 'main.dart': program.code } | |
| 662 : program.code; | |
| 663 } | |
| 664 } | |
| 665 | |
| 666 /// An input provider which provides input via the class [File]. Includes | |
| 667 /// in-memory compilation units [sources] which are returned when a matching | |
| 668 /// key requested. | |
| 669 class IoInputProvider extends SourceFileProvider { | |
| 670 final Map<Uri, String> sources = <Uri, String>{}; | |
| 671 | |
| 672 final Uri packageConfig; | |
| 673 | |
| 674 final Map<Uri, Future> cachedSources = new Map<Uri, Future>(); | |
| 675 | |
| 676 static final Map<Uri, String> cachedFiles = new Map<Uri, String>(); | |
| 677 | |
| 678 IoInputProvider(this.packageConfig); | |
| 679 | |
| 680 Future readFromUri(Uri uri) { | |
| 681 return cachedSources.putIfAbsent(uri, () { | |
| 682 String text; | |
| 683 String name; | |
| 684 if (sources.containsKey(uri)) { | |
| 685 name = '$uri'; | |
| 686 text = sources[uri]; | |
| 687 } else { | |
| 688 if (uri.scheme == PACKAGE_SCHEME) { | |
| 689 throw "packages not supported $uri"; | |
| 690 } | |
| 691 text = readCachedFile(uri); | |
| 692 name = new File.fromUri(uri).path; | |
| 693 } | |
| 694 sourceFiles[uri] = new StringSourceFile(uri, name, text); | |
| 695 return new Future<String>.value(text); | |
| 696 }); | |
| 697 } | |
| 698 | |
| 699 Future call(Uri uri) => readStringFromUri(uri); | |
| 700 | |
| 701 Future<String> readStringFromUri(Uri uri) { | |
| 702 return readFromUri(uri); | |
| 703 } | |
| 704 | |
| 705 Future<List<int>> readUtf8BytesFromUri(Uri uri) { | |
| 706 throw "not supported"; | |
| 707 } | |
| 708 | |
| 709 static String readCachedFile(Uri uri) { | |
| 710 return cachedFiles.putIfAbsent( | |
| 711 uri, () => new File.fromUri(uri).readAsStringSync()); | |
| 712 } | |
| 713 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1659163007:
Rename fletch -> dartino (Closed)
Base URL: https://github.com/dartino/sdk.git@master