Cleanup: remove package "analyzer2dart".

pkg/analyzer2dart/lib/src/driver.dart

-// Copyright (c) 2014, 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 analyzer2dart.driver;
-
-import 'package:analyzer/file_system/file_system.dart';
-import 'package:analyzer/src/generated/element.dart';
-import 'package:analyzer/src/generated/engine.dart';
-import 'package:analyzer/src/generated/sdk.dart';
-import 'package:analyzer/src/generated/source_io.dart';
-
-import 'package:compiler/compiler.dart';
-
-import 'closed_world.dart';
-import 'tree_shaker.dart';
-
-/**
- * Top level driver for Analyzer2Dart.
- */
-class Driver {
-  final ResourceProvider resourceProvider;
-  final AnalysisContext context;
-  final CompilerOutputProvider outputProvider;
-
-  Driver(this.resourceProvider, DartSdk sdk, this.outputProvider)
-      : context = AnalysisEngine.instance.createAnalysisContext() {
-    // Set up the source factory.
-    // TODO(paulberry): do we want to use ExplicitPackageUriResolver?
-    List<UriResolver> uriResolvers = [
-        new FileUriResolver(),
-        new DartUriResolver(sdk) /* ,
-        new PackageUriResolver(packagesDirectories) */
-    ];
-    context.sourceFactory = new SourceFactory(uriResolvers);
-  }
-
-  /**
-   * Compute the closed world that is reachable from an entry point.
-   */
-  ClosedWorld computeWorld(FunctionElement entryPointElement) {
-    InternalAnalysisContext analysisContext = context;
-    TreeShaker treeShaker =
-        new TreeShaker(analysisContext.typeProvider, entryPointElement);
-    return treeShaker.shake();
-  }
-
-  /**
-   * Given a source, resolve it and return its entry point.
-   */
-  FunctionElement resolveEntryPoint(Source source) {
-    // Get the library element associated with the source.
-    LibraryElement libraryElement = context.computeLibraryElement(source);
-
-    // Get the resolved AST for main
-    FunctionElement entryPointElement = libraryElement.entryPoint;
-    if (entryPointElement == null) {
-      throw new Exception('No main()!');
-    }
-    return entryPointElement;
-  }
-
-  /**
-   * Add the given file as the root of analysis, and return the corresponding
-   * source.
-   */
-  Source setRoot(String path) {
-    File file = resourceProvider.getResource(path);
-    Source source = file.createSource();
-    // add the Source
-    ChangeSet changeSet = new ChangeSet();
-    changeSet.addedSource(source);
-    context.applyChanges(changeSet);
-    // return the Source
-    return source;
-  }
-}