implement default analysis options in bazel

pkg/analyzer/lib/src/generated/bazel.dart

 // Copyright (c) 2016, 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.src.generated.bazel;
 
 import 'dart:collection';
 import 'dart:core';
 
 import 'package:analyzer/file_system/file_system.dart';
+import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
+import 'package:analyzer/src/generated/workspace.dart';
 import 'package:analyzer/src/util/fast_uri.dart';
 import 'package:path/path.dart';
 
 /**
  * Instances of the class `BazelFileUriResolver` resolve `file` URI's by first
  * resolving file uri's in the expected way, and then by looking in the
  * corresponding generated directories.
  */
 class BazelFileUriResolver extends ResourceUriResolver {
   final BazelWorkspace workspace;
@@ skipping 109 matching lines @@
       }
     }
 
     return null;
   }
 }
 
 /**
  * Information about a Bazel workspace.
  */
-class BazelWorkspace {
+class BazelWorkspace extends Workspace {
   static const String _WORKSPACE = 'WORKSPACE';
   static const String _READONLY = 'READONLY';
 
   /**
    * Default prefix for "-genfiles" and "-bin" that will be assumed if no build
    * output symlinks are found.
    */
   static const defaultSymlinkPrefix = 'bazel';
 
   final ResourceProvider provider;
@@ skipping 18 matching lines @@
   final String bin;
 
   /**
    * The absolute path to the `bazel-genfiles` folder.
    */
   final String genfiles;
 
   BazelWorkspace._(
       this.provider, this.root, this.readonly, this.bin, this.genfiles);
 
+  @override
+  Map<String, List<Folder>> get packageMap => null;
+
+  @override
+  UriResolver get packageUriResolver => new BazelPackageUriResolver(this);
+
+  @override
+  SourceFactory createSourceFactory(DartSdk sdk) {
+    List<UriResolver> resolvers = <UriResolver>[];
+    if (sdk != null) {
+      resolvers.add(new DartUriResolver(sdk));
+    }
+    resolvers.add(packageUriResolver);
+    resolvers.add(new BazelFileUriResolver(this));
+    return new SourceFactory(resolvers, null, provider);
+  }
+
   /**
    * Return the file with the given [absolutePath], looking first into
    * directories for generated files: `bazel-bin` and `bazel-genfiles`, and
    * then into the workspace root. The file in the workspace root is returned
    * even if it does not exist. Return `null` if the given [absolutePath] is
    * not in the workspace [root].
    */
   File findFile(String absolutePath) {
     Context context = provider.pathContext;
     try {
@@ skipping 110 matching lines @@
     if (provider.getFolder(context.join(root, 'blaze-genfiles')).exists) {
       return 'blaze';
     }
     if (provider.getFolder(context.join(root, 'bazel-genfiles')).exists) {
       return 'bazel';
     }
     // Couldn't find it.  Make a default assumption.
     return defaultSymlinkPrefix;
   }
 }