| // Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'dart:async'; |
| import 'dart:convert'; |
| import 'dart:io'; |
| import 'dart:isolate'; |
| import 'dart:typed_data'; |
| |
| import 'package:_fe_analyzer_shared/src/parser/parser.dart' show Parser; |
| |
| import 'package:_fe_analyzer_shared/src/messages/codes.dart' as codes; |
| |
| import 'package:_fe_analyzer_shared/src/parser/async_modifier.dart' |
| show AsyncModifier; |
| |
| import 'package:_fe_analyzer_shared/src/parser/forwarding_listener.dart' |
| show NullListener; |
| |
| import 'package:_fe_analyzer_shared/src/scanner/scanner.dart' |
| show ScannerConfiguration; |
| |
| import 'package:_fe_analyzer_shared/src/scanner/token.dart'; |
| |
| import 'package:_fe_analyzer_shared/src/scanner/utf8_bytes_scanner.dart' |
| show Utf8BytesScanner; |
| |
| import 'package:_fe_analyzer_shared/src/scanner/token.dart' show Token; |
| |
| import 'package:front_end/src/api_prototype/compiler_options.dart'; |
| import 'package:front_end/src/api_prototype/file_system.dart'; |
| import 'package:front_end/src/api_prototype/memory_file_system.dart'; |
| import 'package:front_end/src/api_prototype/standard_file_system.dart'; |
| import 'package:front_end/src/base/processed_options.dart'; |
| import 'package:front_end/src/fasta/builder/library_builder.dart'; |
| import 'package:front_end/src/fasta/combinator.dart'; |
| |
| import 'package:front_end/src/fasta/command_line_reporting.dart' |
| as command_line_reporting; |
| |
| import 'package:front_end/src/fasta/compiler_context.dart'; |
| // ignore: import_of_legacy_library_into_null_safe |
| import 'package:front_end/src/fasta/dill/dill_library_builder.dart'; |
| // ignore: import_of_legacy_library_into_null_safe |
| import 'package:front_end/src/fasta/dill/dill_target.dart'; |
| import 'package:front_end/src/fasta/fasta_codes.dart'; |
| import 'package:front_end/src/fasta/hybrid_file_system.dart'; |
| // ignore: import_of_legacy_library_into_null_safe |
| import 'package:front_end/src/fasta/incremental_compiler.dart'; |
| import 'package:front_end/src/fasta/kernel/utils.dart'; |
| // ignore: import_of_legacy_library_into_null_safe |
| import 'package:front_end/src/fasta/source/source_library_builder.dart'; |
| import 'package:front_end/src/fasta/uri_translator.dart'; |
| import 'package:kernel/kernel.dart' as kernel |
| show Combinator, Component, LibraryDependency, Library, Location, Source; |
| import 'package:kernel/target/targets.dart'; |
| // ignore: import_of_legacy_library_into_null_safe |
| import 'package:vm/target/vm.dart'; |
| |
| // ignore: import_of_legacy_library_into_null_safe |
| import '../test/incremental_suite.dart' show getOptions; |
| |
| const _portMessageTest = "test"; |
| const _portMessageGood = "good"; |
| const _portMessageBad = "bad"; |
| const _portMessageCrash = "crash"; |
| const _portMessageParseError = "parseError"; |
| const _portMessageDone = "done"; |
| |
| // TODO: This doesn't work on parts... (Well, it might, depending on how |
| // the part declares what file it's part of and if we've compiled other stuff |
| // first so we know more stuff). |
| class DartDocTest { |
| DocTestIncrementalCompiler? incrementalCompiler; |
| late CompilerOptions options; |
| late ProcessedOptions processedOpts; |
| bool errors = false; |
| List<String> errorStrings = []; |
| final FileSystem? underlyingFileSystem; |
| final bool silent; |
| |
| DartDocTest({this.underlyingFileSystem, this.silent: false}); |
| |
| FileSystem _getFileSystem() => |
| underlyingFileSystem ?? StandardFileSystem.instance; |
| |
| void _print(Object? object) { |
| if (!silent) print(object); |
| } |
| |
| /// All-in-one. Process a file and return if it was good. |
| Future<List<TestResult>> process(Uri uri) async { |
| _print("\n\nProcessing $uri"); |
| Stopwatch stopwatch = new Stopwatch()..start(); |
| |
| // Extract test cases in file. |
| List<Test> tests = await extractTestsFromUri(uri); |
| |
| if (tests.isEmpty) { |
| _print("No tests found in file in ${stopwatch.elapsedMilliseconds} ms."); |
| return []; |
| } |
| _print("Found ${tests.length} test(s) in file " |
| "in ${stopwatch.elapsedMilliseconds} ms."); |
| |
| return await compileAndRun(uri, tests); |
| } |
| |
| Future<List<Test>> extractTestsFromUri(Uri uri) async { |
| // Extract test cases in file. |
| FileSystemEntity file = _getFileSystem().entityForUri(uri); |
| List<int> rawBytes = await file.readAsBytes(); |
| return extractTests( |
| rawBytes is Uint8List ? rawBytes : new Uint8List.fromList(rawBytes), |
| uri); |
| } |
| |
| Future<List<TestResult>> compileAndRun(Uri uri, List<Test> tests, |
| {bool silent: false}) async { |
| errors = false; |
| errorStrings.clear(); |
| |
| // Create code to amend the file with. |
| StringBuffer sb = new StringBuffer(); |
| if (tests.isNotEmpty) { |
| sb.writeln( |
| r"Future<void> $dart$doc$test$tester(dynamic dartDocTest) async {"); |
| for (Test test in tests) { |
| if (test is TestParseError) { |
| sb.writeln( |
| "dartDocTest.parseError(\"Parse error @ ${test.position}\");"); |
| } else if (test is ExpectTest) { |
| sb.writeln("try {"); |
| sb.writeln(" dartDocTest.test(${test.call}, ${test.result});"); |
| sb.writeln("} catch (e) {"); |
| sb.writeln(" dartDocTest.crash(e);"); |
| sb.writeln("}"); |
| } else { |
| throw "Unknown test type: ${test.runtimeType}"; |
| } |
| } |
| sb.writeln("}"); |
| } |
| |
| if (incrementalCompiler == null) { |
| setupIncrementalCompiler(uri); |
| } |
| |
| processedOpts.inputs.clear(); |
| processedOpts.inputs.add(uri); |
| HybridFileSystem fileSystem = new HybridFileSystem( |
| new MemoryFileSystem(new Uri(scheme: "dartdoctest", path: "/")), |
| _getFileSystem()); |
| options.fileSystem = fileSystem; |
| processedOpts.clearFileSystemCache(); |
| // Invalidate package uri to force re-finding of packages |
| // (e.g. if we're now compiling somewhere else). |
| incrementalCompiler!.invalidate(processedOpts.packagesUri); |
| |
| Stopwatch stopwatch = new Stopwatch()..start(); |
| kernel.Component component = |
| await incrementalCompiler!.computeDelta(entryPoints: [uri]); |
| if (errors) { |
| _print("Got errors in ${stopwatch.elapsedMilliseconds} ms."); |
| return [ |
| new TestResult(null, TestOutcome.CompilationError) |
| ..message = errorStrings.join("\n") |
| ]; |
| } |
| _print("Compiled (1) in ${stopwatch.elapsedMilliseconds} ms."); |
| stopwatch.reset(); |
| |
| await incrementalCompiler!.compileDartDocTestLibrary( |
| sb.toString(), component.uriToSource[uri]?.importUri ?? uri); |
| |
| final Uri dartDocMainUri = new Uri(scheme: "dartdoctest", path: "main"); |
| fileSystem.memory |
| .entityForUri(dartDocMainUri) |
| .writeAsStringSync(mainFileContent); |
| |
| incrementalCompiler!.invalidate(dartDocMainUri); |
| kernel.Component componentMain = await incrementalCompiler! |
| .computeDelta(entryPoints: [dartDocMainUri], fullComponent: true); |
| if (errors) { |
| _print("Got errors in ${stopwatch.elapsedMilliseconds} ms."); |
| return [ |
| new TestResult(null, TestOutcome.CompilationError) |
| ..message = errorStrings.join("\n") |
| ]; |
| } |
| _print("Compiled (2) in ${stopwatch.elapsedMilliseconds} ms."); |
| stopwatch.reset(); |
| |
| Directory tmpDir = Directory.systemTemp.createTempSync(); |
| Uri dillOutUri = tmpDir.uri.resolve("dartdoctestrun.dill"); |
| await writeComponentToFile(componentMain, dillOutUri); |
| _print("Wrote dill in ${stopwatch.elapsedMilliseconds} ms."); |
| stopwatch.reset(); |
| |
| // Spawn URI (dill uri) to run tests. |
| ReceivePort exitPort = new ReceivePort(); |
| ReceivePort errorPort = new ReceivePort(); |
| ReceivePort communicationPort = new ReceivePort(); |
| Completer<dynamic> completer = new Completer(); |
| bool error = false; |
| exitPort.listen((message) { |
| exitPort.close(); |
| errorPort.close(); |
| communicationPort.close(); |
| completer.complete(); |
| }); |
| errorPort.listen((message) { |
| _print("Isolate had an error: $message."); |
| error = true; |
| exitPort.close(); |
| errorPort.close(); |
| communicationPort.close(); |
| completer.complete(); |
| }); |
| int testCount = 0; |
| int goodCount = 0; |
| int badCount = 0; |
| int crashCount = 0; |
| int parseErrorCount = 0; |
| bool done = false; |
| Test? currentTest; |
| |
| List<TestResult> result = []; |
| |
| communicationPort.listen((message) { |
| if (done) { |
| throw "Didn't expect any more messages. Got '$message'"; |
| } |
| if (message == _portMessageTest) { |
| currentTest = tests[testCount]; |
| testCount++; |
| } else if (message == _portMessageGood) { |
| goodCount++; |
| result.add(new TestResult(currentTest!, TestOutcome.Pass)); |
| } else if (message.toString().startsWith("$_portMessageBad: ")) { |
| badCount++; |
| String strippedMessage = |
| message.toString().substring("$_portMessageBad: ".length); |
| result.add(new TestResult(currentTest!, TestOutcome.Failed) |
| ..message = strippedMessage); |
| _print(strippedMessage); |
| } else if (message.toString().startsWith("$_portMessageCrash: ")) { |
| String strippedMessage = |
| message.toString().substring("$_portMessageCrash: ".length); |
| result.add(new TestResult(currentTest!, TestOutcome.Crash) |
| ..message = strippedMessage); |
| crashCount++; |
| _print(strippedMessage); |
| } else if (message.toString().startsWith("$_portMessageParseError: ")) { |
| String strippedMessage = |
| message.toString().substring("$_portMessageParseError: ".length); |
| result.add( |
| new TestResult(currentTest!, TestOutcome.TestCompilationError) |
| ..message = strippedMessage); |
| parseErrorCount++; |
| _print(strippedMessage); |
| } else if (message == _portMessageDone) { |
| done = true; |
| // don't complete completer here. Expect the exit port to close. |
| } else { |
| throw "Didn't expect '$message'"; |
| } |
| }); |
| // TODO: Possibly it should be launched in a process instead so we can |
| // (sort of) catch and report exit calls in test code. |
| await Isolate.spawnUri( |
| dillOutUri, |
| [], |
| communicationPort.sendPort, |
| onExit: exitPort.sendPort, |
| onError: errorPort.sendPort, |
| ); |
| await completer.future; |
| tmpDir.deleteSync(recursive: true); |
| |
| if (error) { |
| _print("Completed with an error in ${stopwatch.elapsedMilliseconds} ms."); |
| return [new TestResult(null, TestOutcome.RuntimeError)]; |
| } else if (!done) { |
| _print( |
| "Didn't complete correctly in ${stopwatch.elapsedMilliseconds} ms."); |
| return [new TestResult(null, TestOutcome.FrameworkError)]; |
| } else if (testCount != tests.length) { |
| _print("Didn't complete with error but ran " |
| "${testCount} tests while expecting ${tests.length} " |
| "in ${stopwatch.elapsedMilliseconds} ms."); |
| return [new TestResult(null, TestOutcome.FrameworkError)]; |
| } else { |
| _print("Processed $testCount test(s) " |
| "in ${stopwatch.elapsedMilliseconds} ms."); |
| if (goodCount == testCount && |
| badCount == 0 && |
| crashCount == 0 && |
| parseErrorCount == 0) { |
| _print("All tests passed."); |
| } else { |
| _print("$goodCount OK; " |
| "$badCount bad; " |
| "$crashCount crashed; " |
| "$parseErrorCount parse errors."); |
| } |
| return result; |
| } |
| } |
| |
| void setupIncrementalCompiler(Uri uri) { |
| options = getOptions(); |
| TargetFlags targetFlags = new TargetFlags(enableNullSafety: true); |
| // TODO: Target could possible be something else... |
| Target target = new VmTarget(targetFlags); |
| options.target = target; |
| options.omitPlatform = true; |
| options.onDiagnostic = (DiagnosticMessage message) { |
| if (message.codeName == "InferredPackageUri") return; |
| _print(message.plainTextFormatted.first); |
| if (message.severity == Severity.error) { |
| errors = true; |
| for (String errorString in message.plainTextFormatted) { |
| errorStrings.add(errorString); |
| } |
| } |
| }; |
| processedOpts = new ProcessedOptions(options: options, inputs: [uri]); |
| CompilerContext compilerContext = new CompilerContext(processedOpts); |
| this.incrementalCompiler = new DocTestIncrementalCompiler(compilerContext); |
| } |
| } |
| |
| final String mainFileContent = """ |
| // Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| import "${DocTestIncrementalCompiler.dartDocTestUri}" as tester; |
| import "dart:isolate"; |
| |
| Future<void> main(List<String> args, SendPort port) async { |
| DartDocTest test = new DartDocTest(port); |
| await tester.\$dart\$doc\$test\$tester(test); |
| port.send("$_portMessageDone"); |
| } |
| |
| class DartDocTest { |
| final SendPort port; |
| |
| DartDocTest(this.port); |
| |
| void test(dynamic actual, dynamic expected) { |
| port.send("$_portMessageTest"); |
| if (_testImpl(actual, expected)) { |
| port.send("$_portMessageGood"); |
| } else { |
| port.send("$_portMessageBad: Expected '\$expected'; got '\$actual'."); |
| } |
| } |
| |
| void crash(dynamic error) { |
| port.send("$_portMessageTest"); |
| port.send("$_portMessageCrash: \$error"); |
| } |
| |
| void parseError(String message) { |
| port.send("$_portMessageTest"); |
| port.send("$_portMessageParseError: \$message"); |
| } |
| |
| bool _testImpl(dynamic actual, dynamic expected) { |
| if (identical(actual, expected)) return true; |
| if (actual == expected) return true; |
| if (actual == null || expected == null) return false; |
| if (actual is List && expected is List) { |
| if (actual.runtimeType != expected.runtimeType) return false; |
| if (actual.length != expected.length) return false; |
| for (int i = 0; i < actual.length; i++) { |
| if (actual[i] != expected[i]) return false; |
| } |
| return true; |
| } |
| if (actual is List || expected is List) return false; |
| |
| if (actual is Map && expected is Map) { |
| if (actual.runtimeType != expected.runtimeType) return false; |
| if (actual.length != expected.length) return false; |
| for (dynamic key in actual.keys) { |
| if (!expected.containsKey(key)) return false; |
| if (actual[key] != expected[key]) return false; |
| } |
| return true; |
| } |
| if (actual is Map || expected is Map) return false; |
| |
| if (actual is Set && expected is Set) { |
| if (actual.runtimeType != expected.runtimeType) return false; |
| if (actual.length != expected.length) return false; |
| for (dynamic value in actual) { |
| if (!expected.contains(value)) return false; |
| } |
| return true; |
| } |
| if (actual is Set || expected is Set) return false; |
| |
| // More stuff? |
| return false; |
| } |
| } |
| """; |
| |
| List<Test> extractTests(Uint8List rawBytes, Uri uriForReporting) { |
| String rawString = utf8.decode(rawBytes); |
| List<int> lineStarts = []; |
| Token firstToken = scanRawBytes(rawBytes, lineStarts: lineStarts); |
| kernel.Source source = |
| new kernel.Source(lineStarts, rawBytes, uriForReporting, uriForReporting); |
| Token token = firstToken; |
| List<Test> tests = []; |
| while (true) { |
| CommentToken? comment = token.precedingComments; |
| if (comment != null) { |
| tests.addAll(extractTestsFromComment(comment, rawString, source)); |
| } |
| if (token.isEof) break; |
| Token? next = token.next; |
| if (next == null) break; |
| token = next; |
| } |
| return tests; |
| } |
| |
| Token scanRawBytes(Uint8List rawBytes, {List<int>? lineStarts}) { |
| Uint8List bytes = new Uint8List(rawBytes.length + 1); |
| bytes.setRange(0, rawBytes.length, rawBytes); |
| |
| ScannerConfiguration scannerConfiguration = new ScannerConfiguration( |
| enableExtensionMethods: true, |
| enableNonNullable: true, |
| enableTripleShift: true); |
| |
| Utf8BytesScanner scanner = new Utf8BytesScanner( |
| bytes, |
| includeComments: true, |
| configuration: scannerConfiguration, |
| languageVersionChanged: (scanner, languageVersion) { |
| // For now don't do anything, but having it (making it non-null) means the |
| // configuration won't be reset. |
| }, |
| ); |
| Token result = scanner.tokenize(); |
| if (lineStarts != null) { |
| lineStarts.clear(); |
| lineStarts.addAll(scanner.lineStarts); |
| } |
| return result; |
| } |
| |
| const int $LF = 10; |
| const int $SPACE = 32; |
| const int $STAR = 42; |
| |
| class Test {} |
| |
| class ExpectTest implements Test { |
| final String call; |
| final String result; |
| |
| ExpectTest(this.call, this.result); |
| |
| bool operator ==(Object other) { |
| if (other is! ExpectTest) return false; |
| if (other.call != call) return false; |
| if (other.result != result) return false; |
| return true; |
| } |
| |
| String toString() { |
| return "ExpectTest[$call, $result]"; |
| } |
| } |
| |
| class TestParseError implements Test { |
| final String message; |
| final int position; |
| |
| TestParseError(this.message, this.position); |
| |
| bool operator ==(Object other) { |
| if (other is! TestParseError) return false; |
| if (other.message != message) return false; |
| if (other.position != position) return false; |
| return true; |
| } |
| |
| String toString() { |
| return "TestParseError[$position, $message]"; |
| } |
| } |
| |
| enum TestOutcome { |
| Pass, |
| Failed, |
| Crash, |
| TestCompilationError, |
| CompilationError, |
| RuntimeError, |
| FrameworkError |
| } |
| |
| class TestResult { |
| final Test? test; |
| final TestOutcome outcome; |
| String? message; |
| |
| TestResult(this.test, this.outcome); |
| |
| bool operator ==(Object other) { |
| if (other is! TestResult) return false; |
| if (other.test != test) return false; |
| if (other.outcome != outcome) return false; |
| if (other.message != message) return false; |
| return true; |
| } |
| |
| String toString() { |
| if (message != null) { |
| return "TestResult[$outcome, $test, $message]"; |
| } |
| return "TestResult[$outcome, $test]"; |
| } |
| } |
| |
| List<Test> extractTestsFromComment( |
| CommentToken comment, String rawString, kernel.Source source) { |
| CommentString commentsData = extractComments(comment, rawString); |
| final String comments = commentsData.string; |
| List<Test> result = []; |
| int index = comments.indexOf("DartDocTest("); |
| if (index < 0) { |
| return result; |
| } |
| |
| Test scanDartDoc(int scanOffset) { |
| final Token firstToken = |
| scanRawBytes(utf8.encode(comments.substring(scanOffset)) as Uint8List); |
| final ErrorListener listener = new ErrorListener(); |
| final Parser parser = new Parser(listener); |
| parser.asyncState = AsyncModifier.Async; |
| |
| final Token pastErrors = parser.skipErrorTokens(firstToken); |
| assert(pastErrors.isIdentifier); |
| assert(pastErrors.lexeme == "DartDocTest"); |
| |
| final Token startParen = pastErrors.next!; |
| assert(identical("(", startParen.stringValue)); |
| |
| // Advance index so we don't parse the same thing again (for error cases). |
| index = scanOffset + startParen.charEnd; |
| |
| final Token beforeComma = parser.parseExpression(startParen); |
| final Token comma = beforeComma.next!; |
| |
| if (listener.hasErrors) { |
| StringBuffer sb = new StringBuffer(); |
| int firstPosition = _createParseErrorMessages( |
| listener, sb, commentsData, scanOffset, source); |
| return new TestParseError(sb.toString(), firstPosition); |
| } else if (!identical(",", comma.stringValue)) { |
| int position = commentsData.charOffset + scanOffset + comma.charOffset; |
| Message message = codes.templateExpectedButGot.withArguments(','); |
| return new TestParseError( |
| _createParseErrorMessage(source, position, comma, comma, message), |
| position, |
| ); |
| } |
| |
| Token beforeEndParen = parser.parseExpression(comma); |
| Token endParen = beforeEndParen.next!; |
| |
| if (listener.hasErrors) { |
| StringBuffer sb = new StringBuffer(); |
| int firstPosition = _createParseErrorMessages( |
| listener, sb, commentsData, scanOffset, source); |
| return new TestParseError(sb.toString(), firstPosition); |
| } else if (!identical(")", endParen.stringValue)) { |
| int position = commentsData.charOffset + scanOffset + endParen.charOffset; |
| Message message = codes.templateExpectedButGot.withArguments(')'); |
| return new TestParseError( |
| _createParseErrorMessage(source, position, comma, comma, message), |
| position, |
| ); |
| } |
| |
| // Advance index so we don't parse the same thing again (success case). |
| index = scanOffset + endParen.charEnd; |
| |
| int startPos = scanOffset + startParen.next!.charOffset; |
| int midEndPos = scanOffset + beforeComma.charEnd; |
| int midStartPos = scanOffset + comma.next!.charOffset; |
| int endPos = scanOffset + beforeEndParen.charEnd; |
| return new ExpectTest( |
| comments.substring(startPos, midEndPos), |
| comments.substring(midStartPos, endPos), |
| ); |
| } |
| |
| while (index >= 0) { |
| result.add(scanDartDoc(index)); |
| index = comments.indexOf("DartDocTest(", index); |
| } |
| return result; |
| } |
| |
| int _createParseErrorMessages(ErrorListener listener, StringBuffer sb, |
| CommentString commentsData, int scanOffset, kernel.Source source) { |
| assert(listener.recoverableErrors.isNotEmpty); |
| sb.writeln("Parse error(s):"); |
| int? firstPosition; |
| for (RecoverableError recoverableError in listener.recoverableErrors) { |
| final int position = commentsData.charOffset + |
| scanOffset + |
| recoverableError.startToken.charOffset; |
| firstPosition ??= position; |
| sb.writeln(""); |
| sb.write(_createParseErrorMessage( |
| source, |
| position, |
| recoverableError.startToken, |
| recoverableError.endToken, |
| recoverableError.message, |
| )); |
| } |
| return firstPosition!; |
| } |
| |
| String _createParseErrorMessage(kernel.Source source, int position, |
| Token startToken, Token endToken, Message message) { |
| kernel.Location location = source.getLocation(source.importUri!, position); |
| return command_line_reporting.formatErrorMessage( |
| source.getTextLine(location.line), |
| location, |
| endToken.charEnd - startToken.charOffset, |
| source.importUri!.toString(), |
| message.message); |
| } |
| |
| CommentString extractComments(CommentToken comment, String rawString) { |
| List<int> fileCodeUnits = rawString.codeUnits; |
| final int charOffset = comment.charOffset; |
| int expectedCharOffset = charOffset; |
| StringBuffer sb = new StringBuffer(); |
| CommentToken? commentToken = comment; |
| bool commentBlock = false; |
| bool commentBlockStar = false; |
| while (commentToken != null) { |
| if (expectedCharOffset != commentToken.charOffset) { |
| // Missing spaces/linebreaks. |
| assert(expectedCharOffset < commentToken.offset); |
| for (int i = expectedCharOffset; i < commentToken.offset; i++) { |
| if (fileCodeUnits[i] == $LF) { |
| sb.writeCharCode($LF); |
| } else { |
| sb.write(" "); |
| } |
| } |
| } |
| expectedCharOffset = commentToken.charEnd; |
| String data = commentToken.lexeme; |
| if (!commentBlock) { |
| if (data.startsWith("///")) { |
| data = data.substring(3); |
| sb.write(" "); |
| } else if (data.startsWith("//")) { |
| data = data.substring(2); |
| sb.write(" "); |
| } else if (data.startsWith("/**")) { |
| data = data.substring(3); |
| commentBlock = true; |
| commentBlockStar = true; |
| sb.write(" "); |
| } else if (data.startsWith("/*")) { |
| data = data.substring(2); |
| commentBlock = true; |
| sb.write(" "); |
| } |
| } |
| |
| if (commentBlock && data.endsWith("*/")) { |
| // Remove ending "*/"" as well as "starting" "*" if in a "/**" block. |
| List<int> codeUnits = data.codeUnits; |
| bool sawNewlineLast = false; |
| for (int i = 0; i < codeUnits.length - 2; i++) { |
| int codeUnit = codeUnits[i]; |
| if (codeUnit == $LF) { |
| sb.writeCharCode($LF); |
| sawNewlineLast = true; |
| } else if (codeUnit <= $SPACE) { |
| sb.writeCharCode($SPACE); |
| } else if (commentBlockStar && sawNewlineLast && codeUnit == $STAR) { |
| sb.writeCharCode($SPACE); |
| sawNewlineLast = false; |
| } else { |
| sawNewlineLast = false; |
| sb.writeCharCode(codeUnit); |
| } |
| } |
| sb.write(" "); |
| commentBlock = false; |
| commentBlockStar = false; |
| } else { |
| sb.write(data); |
| } |
| Token? next = commentToken.next; |
| commentToken = null; |
| if (next is CommentToken) commentToken = next; |
| } |
| return new CommentString(sb.toString(), charOffset); |
| } |
| |
| class CommentString { |
| final String string; |
| final int charOffset; |
| |
| CommentString(this.string, this.charOffset); |
| |
| bool operator ==(Object other) { |
| if (other is! CommentString) return false; |
| if (other.string != string) return false; |
| if (other.charOffset != charOffset) return false; |
| return true; |
| } |
| |
| String toString() { |
| return "CommentString[$charOffset, $string]"; |
| } |
| } |
| |
| class ErrorListener extends NullListener { |
| List<RecoverableError> recoverableErrors = []; |
| |
| @override |
| void handleRecoverableError( |
| Message message, Token startToken, Token endToken) { |
| super.handleRecoverableError(message, startToken, endToken); |
| recoverableErrors.add(new RecoverableError(message, startToken, endToken)); |
| } |
| } |
| |
| class RecoverableError { |
| final Message message; |
| final Token startToken; |
| final Token endToken; |
| |
| RecoverableError(this.message, this.startToken, this.endToken); |
| } |
| |
| class DocTestIncrementalCompiler extends IncrementalCompiler { |
| static final Uri dartDocTestUri = |
| new Uri(scheme: "dartdoctest", path: "tester"); |
| DocTestIncrementalCompiler(CompilerContext context) : super(context); |
| |
| bool dontReissueLibraryProblemsFor(Uri uri) { |
| return super.dontReissueLibraryProblemsFor(uri) || uri == dartDocTestUri; |
| } |
| |
| @override |
| IncrementalKernelTarget createIncrementalKernelTarget( |
| FileSystem fileSystem, |
| bool includeComments, |
| DillTarget dillTarget, |
| UriTranslator uriTranslator) { |
| return new DocTestIncrementalKernelTarget( |
| this, fileSystem, includeComments, dillTarget, uriTranslator); |
| } |
| |
| LibraryBuilder? _dartDocTestLibraryBuilder; |
| String? _dartDocTestCode; |
| |
| Future<kernel.Component> compileDartDocTestLibrary( |
| String dartDocTestCode, Uri libraryUri) async { |
| assert(dillLoadedData != null && userCode != null); |
| |
| return await context.runInContext((_) async { |
| LibraryBuilder libraryBuilder = |
| userCode.loader.read(libraryUri, -1, accessor: userCode.loader.first); |
| |
| userCode.loader.seenMessages.clear(); |
| |
| _dartDocTestLibraryBuilder = libraryBuilder; |
| _dartDocTestCode = dartDocTestCode; |
| |
| invalidate(dartDocTestUri); |
| kernel.Component result = await computeDelta( |
| entryPoints: [dartDocTestUri], fullComponent: true); |
| _dartDocTestLibraryBuilder = null; |
| _dartDocTestCode = null; |
| |
| userCode.uriToSource.remove(dartDocTestUri); |
| userCode.loader.sourceBytes.remove(dartDocTestUri); |
| |
| return result; |
| }); |
| } |
| |
| SourceLibraryBuilder createDartDocTestLibrary(LibraryBuilder libraryBuilder) { |
| SourceLibraryBuilder dartDocTestLibrary = new SourceLibraryBuilder( |
| dartDocTestUri, |
| dartDocTestUri, |
| /*packageUri*/ null, |
| new ImplicitLanguageVersion(libraryBuilder.library.languageVersion), |
| userCode.loader, |
| null, |
| scope: libraryBuilder.scope.createNestedScope("dartdoctest"), |
| nameOrigin: libraryBuilder, |
| ); |
| |
| if (libraryBuilder is DillLibraryBuilder) { |
| for (kernel.LibraryDependency dependency |
| in libraryBuilder.library.dependencies) { |
| if (!dependency.isImport) continue; |
| |
| List<Combinator>? combinators; |
| |
| for (kernel.Combinator combinator in dependency.combinators) { |
| combinators ??= <Combinator>[]; |
| |
| combinators.add(combinator.isShow |
| ? new Combinator.show(combinator.names, combinator.fileOffset, |
| libraryBuilder.fileUri) |
| : new Combinator.hide(combinator.names, combinator.fileOffset, |
| libraryBuilder.fileUri)); |
| } |
| |
| dartDocTestLibrary.addImport( |
| null, |
| dependency.importedLibraryReference.asLibrary.importUri.toString(), |
| null, |
| dependency.name, |
| combinators, |
| dependency.isDeferred, |
| -1, |
| -1, |
| -1, |
| -1); |
| } |
| |
| dartDocTestLibrary.addImport(null, libraryBuilder.importUri.toString(), |
| null, null, null, false, -1, -1, -1, -1); |
| |
| dartDocTestLibrary.addImportsToScope(); |
| } else { |
| throw "Got ${libraryBuilder.runtimeType}"; |
| } |
| |
| return dartDocTestLibrary; |
| } |
| } |
| |
| class DocTestIncrementalKernelTarget extends IncrementalKernelTarget { |
| final DocTestIncrementalCompiler compiler; |
| DocTestIncrementalKernelTarget(this.compiler, FileSystem fileSystem, |
| bool includeComments, DillTarget dillTarget, UriTranslator uriTranslator) |
| : super(fileSystem, includeComments, dillTarget, uriTranslator); |
| |
| @override |
| LibraryBuilder createLibraryBuilder( |
| Uri uri, |
| Uri fileUri, |
| Uri? packageUri, |
| LanguageVersion packageLanguageVersion, |
| SourceLibraryBuilder origin, |
| kernel.Library? referencesFrom, |
| bool? referenceIsPartOwner) { |
| if (uri == DocTestIncrementalCompiler.dartDocTestUri) { |
| HybridFileSystem hfs = compiler.userCode.fileSystem as HybridFileSystem; |
| MemoryFileSystem fs = hfs.memory; |
| fs |
| .entityForUri(DocTestIncrementalCompiler.dartDocTestUri) |
| .writeAsStringSync(compiler._dartDocTestCode!); |
| return compiler |
| .createDartDocTestLibrary(compiler._dartDocTestLibraryBuilder!); |
| } |
| return super.createLibraryBuilder(uri, fileUri, packageUri, |
| packageLanguageVersion, origin, referencesFrom, referenceIsPartOwner); |
| } |
| } |
