Analyzer CLI removal.

pkg/analyzer/lib/src/analyzer_impl.dart

Index: pkg/analyzer/lib/src/analyzer_impl.dart
===================================================================
--- pkg/analyzer/lib/src/analyzer_impl.dart	(revision 45350)
+++ pkg/analyzer/lib/src/analyzer_impl.dart	(working copy)
@@ -1,498 +0,0 @@
-// Copyright (c) 2013, 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.
-
-library analyzer_impl;
-
-import 'dart:async';
-import 'dart:collection';
-import 'dart:io';
-
-import 'package:analyzer/file_system/file_system.dart' show Folder;
-import 'package:analyzer/file_system/physical_file_system.dart';
-import 'package:analyzer/source/package_map_provider.dart';
-import 'package:analyzer/source/package_map_resolver.dart';
-import 'package:analyzer/source/pub_package_map_provider.dart';
-import 'package:analyzer/src/error_formatter.dart';
-import 'package:analyzer/src/generated/java_core.dart' show JavaSystem;
-import 'package:analyzer/src/generated/java_engine.dart';
-import 'package:analyzer/src/generated/utilities_general.dart';
-
-import '../options.dart';
-import 'generated/constant.dart';
-import 'generated/element.dart';
-import 'generated/engine.dart';
-import 'generated/error.dart';
-import 'generated/java_io.dart';
-import 'generated/sdk_io.dart';
-import 'generated/source_io.dart';
-
-DirectoryBasedDartSdk sdk;
-
-/**
- * The maximum number of sources for which AST structures should be kept in the cache.
- */
-const int _MAX_CACHE_SIZE = 512;
-
-/// Analyzes single library [File].
-class AnalyzerImpl {
-  final String sourcePath;
-
-  final CommandLineOptions options;
-  final int startTime;
-
-  /**
-   * True if the analyzer is running in batch mode.
-   */
-  final bool isBatch;
-
-  ContentCache contentCache = new ContentCache();
-
-  SourceFactory sourceFactory;
-  AnalysisContext context;
-  Source librarySource;
-  /// All [Source]s references by the analyzed library.
-  final Set<Source> sources = new Set<Source>();
-
-  /// All [AnalysisErrorInfo]s in the analyzed library.
-  final List<AnalysisErrorInfo> errorInfos = new List<AnalysisErrorInfo>();
-
-  /// [HashMap] between sources and analysis error infos.
-  final HashMap<Source, AnalysisErrorInfo> sourceErrorsMap =
-      new HashMap<Source, AnalysisErrorInfo>();
-
-  /**
-   * If the file specified on the command line is part of a package, the name
-   * of that package.  Otherwise `null`.  This allows us to analyze the file
-   * specified on the command line as though it is reached via a "package:"
-   * URI, but avoid suppressing its output in the event that the user has not
-   * specified the "--package-warnings" option.
-   */
-  String _selfPackageName;
-
-  AnalyzerImpl(String sourcePath, this.options, this.startTime, this.isBatch)
-      : sourcePath = _normalizeSourcePath(sourcePath) {
-    if (sdk == null) {
-      sdk = new DirectoryBasedDartSdk(new JavaFile(options.dartSdkPath));
-    }
-  }
-
-  /// Returns the maximal [ErrorSeverity] of the recorded errors.
-  ErrorSeverity get maxErrorSeverity {
-    var status = ErrorSeverity.NONE;
-    for (AnalysisErrorInfo errorInfo in errorInfos) {
-      for (AnalysisError error in errorInfo.errors) {
-        if (!_isDesiredError(error)) {
-          continue;
-        }
-        var severity = computeSeverity(error, options.enableTypeChecks);
-        status = status.max(severity);
-      }
-    }
-    return status;
-  }
-
-  void addCompilationUnitSource(CompilationUnitElement unit,
-      Set<LibraryElement> libraries, Set<CompilationUnitElement> units) {
-    if (unit == null || units.contains(unit)) {
-      return;
-    }
-    units.add(unit);
-    sources.add(unit.source);
-  }
-
-  void addLibrarySources(LibraryElement library, Set<LibraryElement> libraries,
-      Set<CompilationUnitElement> units) {
-    if (library == null || !libraries.add(library)) {
-      return;
-    }
-    // may be skip library
-    {
-      UriKind uriKind = library.source.uriKind;
-      // Optionally skip package: libraries.
-      if (!options.showPackageWarnings && _isOtherPackage(library.source.uri)) {
-        return;
-      }
-      // Optionally skip SDK libraries.
-      if (!options.showSdkWarnings && uriKind == UriKind.DART_URI) {
-        return;
-      }
-    }
-    // add compilation units
-    addCompilationUnitSource(library.definingCompilationUnit, libraries, units);
-    for (CompilationUnitElement child in library.parts) {
-      addCompilationUnitSource(child, libraries, units);
-    }
-    // add referenced libraries
-    for (LibraryElement child in library.importedLibraries) {
-      addLibrarySources(child, libraries, units);
-    }
-    for (LibraryElement child in library.exportedLibraries) {
-      addLibrarySources(child, libraries, units);
-    }
-  }
-
-  /**
-   * Treats the [sourcePath] as the top level library and analyzes it using a
-   * asynchronous algorithm over the analysis engine.
-   */
-  void analyzeAsync() {
-    setupForAnalysis();
-    _analyzeAsync();
-  }
-
-  /**
-   * Treats the [sourcePath] as the top level library and analyzes it using a
-   * synchronous algorithm over the analysis engine. If [printMode] is `0`,
-   * then no error or performance information is printed. If [printMode] is `1`,
-   * then both will be printed. If [printMode] is `2`, then only performance
-   * information will be printed, and it will be marked as being for a cold VM.
-   */
-  ErrorSeverity analyzeSync({int printMode: 1}) {
-    setupForAnalysis();
-    return _analyzeSync(printMode);
-  }
-
-  Source computeLibrarySource() {
-    JavaFile sourceFile = new JavaFile(sourcePath);
-    Source source = sdk.fromFileUri(sourceFile.toURI());
-    if (source != null) {
-      return source;
-    }
-    source = new FileBasedSource.con2(sourceFile.toURI(), sourceFile);
-    Uri uri = context.sourceFactory.restoreUri(source);
-    if (uri == null) {
-      return source;
-    }
-    return new FileBasedSource.con2(uri, sourceFile);
-  }
-
-  /**
-   * Create and return the source factory to be used by the analysis context.
-   */
-  SourceFactory createSourceFactory() {
-    List<UriResolver> resolvers = [
-      new CustomUriResolver(options.customUrlMappings),
-      new DartUriResolver(sdk)
-    ];
-    if (options.packageRootPath != null) {
-      JavaFile packageDirectory = new JavaFile(options.packageRootPath);
-      resolvers.add(new PackageUriResolver([packageDirectory]));
-    } else {
-      PubPackageMapProvider pubPackageMapProvider =
-          new PubPackageMapProvider(PhysicalResourceProvider.INSTANCE, sdk);
-      PackageMapInfo packageMapInfo = pubPackageMapProvider.computePackageMap(
-          PhysicalResourceProvider.INSTANCE.getResource('.'));
-      Map<String, List<Folder>> packageMap = packageMapInfo.packageMap;
-      if (packageMap != null) {
-        resolvers.add(new PackageMapUriResolver(
-            PhysicalResourceProvider.INSTANCE, packageMap));
-      }
-    }
-    resolvers.add(new FileUriResolver());
-    return new SourceFactory(resolvers);
-  }
-
-  void prepareAnalysisContext() {
-    sourceFactory = createSourceFactory();
-    context = AnalysisEngine.instance.createAnalysisContext();
-    context.sourceFactory = sourceFactory;
-    Map<String, String> definedVariables = options.definedVariables;
-    if (!definedVariables.isEmpty) {
-      DeclaredVariables declaredVariables = context.declaredVariables;
-      definedVariables.forEach((String variableName, String value) {
-        declaredVariables.define(variableName, value);
-      });
-    }
-    // Uncomment the following to have errors reported on stdout and stderr
-    AnalysisEngine.instance.logger = new StdLogger(options.log);
-
-    // set options for context
-    AnalysisOptionsImpl contextOptions = new AnalysisOptionsImpl();
-    contextOptions.cacheSize = _MAX_CACHE_SIZE;
-    contextOptions.hint = !options.disableHints;
-    contextOptions.enableNullAwareOperators = options.enableNullAwareOperators;
-    contextOptions.enableStrictCallChecks = options.enableStrictCallChecks;
-    contextOptions.analyzeFunctionBodiesPredicate =
-        _analyzeFunctionBodiesPredicate;
-    contextOptions.generateImplicitErrors = options.showPackageWarnings;
-    contextOptions.generateSdkErrors = options.showSdkWarnings;
-    context.analysisOptions = contextOptions;
-
-    librarySource = computeLibrarySource();
-
-    Uri libraryUri = librarySource.uri;
-    if (libraryUri.scheme == 'package' && libraryUri.pathSegments.length > 0) {
-      _selfPackageName = libraryUri.pathSegments[0];
-    }
-
-    // Create and add a ChangeSet
-    ChangeSet changeSet = new ChangeSet();
-    changeSet.addedSource(librarySource);
-    context.applyChanges(changeSet);
-  }
-
-  /// Fills [errorInfos] using [sources].
-  void prepareErrors() {
-    for (Source source in sources) {
-      context.computeErrors(source);
-      var sourceErrors = context.getErrors(source);
-      errorInfos.add(sourceErrors);
-    }
-  }
-
-  /// Fills [sources].
-  void prepareSources(LibraryElement library) {
-    var units = new Set<CompilationUnitElement>();
-    var libraries = new Set<LibraryElement>();
-    addLibrarySources(library, libraries, units);
-  }
-
-  /**
-   * Setup local fields such as the analysis context for analysis.
-   */
-  void setupForAnalysis() {
-    sources.clear();
-    errorInfos.clear();
-    if (sourcePath == null) {
-      throw new ArgumentError("sourcePath cannot be null");
-    }
-    // prepare context
-    prepareAnalysisContext();
-  }
-
-  /// The async version of the analysis
-  void _analyzeAsync() {
-    new Future(context.performAnalysisTask).then((AnalysisResult result) {
-      List<ChangeNotice> notices = result.changeNotices;
-      if (result.hasMoreWork) {
-        // There is more work, record the set of sources, and then call self
-        // again to perform next task
-        for (ChangeNotice notice in notices) {
-          sources.add(notice.source);
-          sourceErrorsMap[notice.source] = notice;
-        }
-        return _analyzeAsync();
-      }
-      //
-      // There are not any more tasks, set error code and print performance
-      // numbers.
-      //
-      // prepare errors
-      sourceErrorsMap.forEach((k, v) {
-        errorInfos.add(sourceErrorsMap[k]);
-      });
-
-      // print errors and performance numbers
-      _printErrorsAndPerf();
-
-      // compute max severity and set exitCode
-      ErrorSeverity status = maxErrorSeverity;
-      if (status == ErrorSeverity.WARNING && options.warningsAreFatal) {
-        status = ErrorSeverity.ERROR;
-      }
-      exitCode = status.ordinal;
-    }).catchError((ex, st) {
-      AnalysisEngine.instance.logger.logError("$ex\n$st");
-    });
-  }
-
-  bool _analyzeFunctionBodiesPredicate(Source source) {
-    // TODO(paulberry): This function will need to be updated when we add the
-    // ability to suppress errors, warnings, and hints for files reached via
-    // custom URI's using the "--url-mapping" flag.
-    if (source.uri.scheme == 'dart') {
-      if (isBatch) {
-        // When running in batch mode, the SDK files are cached from one
-        // analysis run to the next.  So we need to parse function bodies even
-        // if the user hasn't asked for errors/warnings from the SDK, since
-        // they might ask for errors/warnings from the SDK in the future.
-        return true;
-      }
-      return options.showSdkWarnings;
-    }
-    if (_isOtherPackage(source.uri)) {
-      return options.showPackageWarnings;
-    }
-    return true;
-  }
-
-  /// The sync version of analysis.
-  ErrorSeverity _analyzeSync(int printMode) {
-    // don't try to analyze parts
-    if (context.computeKindOf(librarySource) == SourceKind.PART) {
-      print("Only libraries can be analyzed.");
-      print("$sourcePath is a part and can not be analyzed.");
-      return ErrorSeverity.ERROR;
-    }
-    // resolve library
-    var libraryElement = context.computeLibraryElement(librarySource);
-    // prepare source and errors
-    prepareSources(libraryElement);
-    prepareErrors();
-
-    // print errors and performance numbers
-    if (printMode == 1) {
-      _printErrorsAndPerf();
-    } else if (printMode == 2) {
-      _printColdPerf();
-    }
-
-    // compute max severity and set exitCode
-    ErrorSeverity status = maxErrorSeverity;
-    if (status == ErrorSeverity.WARNING && options.warningsAreFatal) {
-      status = ErrorSeverity.ERROR;
-    }
-    return status;
-  }
-
-  bool _isDesiredError(AnalysisError error) {
-    if (error.errorCode.type == ErrorType.TODO) {
-      return false;
-    }
-    if (computeSeverity(error, options.enableTypeChecks) ==
-            ErrorSeverity.INFO &&
-        options.disableHints) {
-      return false;
-    }
-    return true;
-  }
-
-  /**
-   * Determine whether the given URI refers to a package other than the package
-   * being analyzed.
-   */
-  bool _isOtherPackage(Uri uri) {
-    if (uri.scheme != 'package') {
-      return false;
-    }
-    if (_selfPackageName != null &&
-        uri.pathSegments.length > 0 &&
-        uri.pathSegments[0] == _selfPackageName) {
-      return false;
-    }
-    return true;
-  }
-
-  _printColdPerf() {
-    // print cold VM performance numbers
-    int totalTime = JavaSystem.currentTimeMillis() - startTime;
-    int otherTime = totalTime;
-    for (PerformanceTag tag in PerformanceTag.all) {
-      if (tag != PerformanceTag.UNKNOWN) {
-        int tagTime = tag.elapsedMs;
-        stdout.writeln('${tag.label}-cold:$tagTime');
-        otherTime -= tagTime;
-      }
-    }
-    stdout.writeln('other-cold:$otherTime');
-    stdout.writeln("total-cold:$totalTime");
-  }
-
-  _printErrorsAndPerf() {
-    // The following is a hack. We currently print out to stderr to ensure that
-    // when in batch mode we print to stderr, this is because the prints from
-    // batch are made to stderr. The reason that options.shouldBatch isn't used
-    // is because when the argument flags are constructed in BatchRunner and
-    // passed in from batch mode which removes the batch flag to prevent the
-    // "cannot have the batch flag and source file" error message.
-    IOSink sink = options.machineFormat ? stderr : stdout;
-
-    // print errors
-    ErrorFormatter formatter =
-        new ErrorFormatter(sink, options, _isDesiredError);
-    formatter.formatErrors(errorInfos);
-
-    // print performance numbers
-    if (options.perf || options.warmPerf) {
-      int totalTime = JavaSystem.currentTimeMillis() - startTime;
-      int otherTime = totalTime;
-      for (PerformanceTag tag in PerformanceTag.all) {
-        if (tag != PerformanceTag.UNKNOWN) {
-          int tagTime = tag.elapsedMs;
-          stdout.writeln('${tag.label}:$tagTime');
-          otherTime -= tagTime;
-        }
-      }
-      stdout.writeln('other:$otherTime');
-      stdout.writeln("total:$totalTime");
-    }
-  }
-
-  /**
-   * Compute the severity of the error; however, if
-   * [enableTypeChecks] is false, then de-escalate checked-mode compile time
-   * errors to a severity of [ErrorSeverity.INFO].
-   */
-  static ErrorSeverity computeSeverity(
-      AnalysisError error, bool enableTypeChecks) {
-    if (!enableTypeChecks &&
-        error.errorCode.type == ErrorType.CHECKED_MODE_COMPILE_TIME_ERROR) {
-      return ErrorSeverity.INFO;
-    }
-    return error.errorCode.errorSeverity;
-  }
-
-  static JavaFile getPackageDirectoryFor(JavaFile sourceFile) {
-    // we are going to ask parent file, so get absolute path
-    sourceFile = sourceFile.getAbsoluteFile();
-    // look in the containing directories
-    JavaFile dir = sourceFile.getParentFile();
-    while (dir != null) {
-      JavaFile packagesDir = new JavaFile.relative(dir, "packages");
-      if (packagesDir.exists()) {
-        return packagesDir;
-      }
-      dir = dir.getParentFile();
-    }
-    // not found
-    return null;
-  }
-
-  /**
-   * Convert [sourcePath] into an absolute path.
-   */
-  static String _normalizeSourcePath(String sourcePath) {
-    return new File(sourcePath).absolute.path;
-  }
-}
-
-/**
- * This [Logger] prints out information comments to [stdout] and error messages
- * to [stderr].
- */
-class StdLogger extends Logger {
-  final bool log;
-
-  StdLogger(this.log);
-
-  @override
-  void logError(String message, [CaughtException exception]) {
-    stderr.writeln(message);
-    if (exception != null) {
-      stderr.writeln(exception);
-    }
-  }
-
-  @override
-  void logError2(String message, Object exception) {
-    stderr.writeln(message);
-  }
-
-  @override
-  void logInformation(String message, [CaughtException exception]) {
-    if (log) {
-      stdout.writeln(message);
-      if (exception != null) {
-        stderr.writeln(exception);
-      }
-    }
-  }
-
-  @override
-  void logInformation2(String message, Object exception) {
-    if (log) {
-      stdout.writeln(message);
-    }
-  }
-}