Revert "Revert "Reapply "Switch to the new analysis driver in analyzer_cli."""

pkg/analyzer_cli/lib/src/options.dart

 // Copyright (c) 2015, 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_cli.src.options;
 
 import 'dart:io';
 
 import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/src/command_line/arguments.dart';
@@ skipping 15 matching lines @@
   exitHandler(exitCode);
 }
 
 /// Exit handler.
 ///
 /// *Visible for testing.*
 typedef void ExitHandler(int code);
 
 /// Analyzer commandline configuration options.
 class CommandLineOptions {
-  final bool enableNewAnalysisDriver = false;
+  final bool enableNewAnalysisDriver = true;
 
   /// The path to output analysis results when in build mode.
   final String buildAnalysisOutput;
 
   /// Whether to use build mode.
   final bool buildMode;
 
   /// Whether to use build mode as a Bazel persistent worker.
   final bool buildModePersistentWorker;
 
@@ skipping 89 matching lines @@
 
   /// Whether implicit casts are enabled (in strong mode)
   final bool implicitCasts;
 
   /// Whether implicit dynamic is enabled (mainly for strong mode users)
   final bool implicitDynamic;
 
   /// Whether to treat lints as fatal
   final bool lintsAreFatal;
 
+  /// Whether to use memory byte store for analysis driver.
+  final bool useAnalysisDriverMemoryByteStore;
+
   /// Initialize options from the given parsed [args].
   CommandLineOptions._fromArgs(ArgResults args)
       : buildAnalysisOutput = args['build-analysis-output'],
         buildMode = args['build-mode'],
         buildModePersistentWorker = args['persistent_worker'],
         buildSummaryInputs = args['build-summary-input'] as List<String>,
         buildSummaryOnly = args['build-summary-only'],
         buildSummaryOnlyDiet = args['build-summary-only-diet'],
         buildSummaryExcludeInformative =
             args['build-summary-exclude-informative'],
@@ skipping 18 matching lines @@
         showPackageWarnings = args['show-package-warnings'] ||
             args['package-warnings'] ||
             args['x-package-warnings-prefix'] != null,
         showPackageWarningsPrefix = args['x-package-warnings-prefix'],
         showSdkWarnings = args['show-sdk-warnings'] || args['warnings'],
         sourceFiles = args.rest,
         warningsAreFatal = args['fatal-warnings'],
         strongMode = args['strong'],
         implicitCasts = !args['no-implicit-casts'],
         implicitDynamic = !args['no-implicit-dynamic'],
-        lintsAreFatal = args['fatal-lints'];
+        lintsAreFatal = args['fatal-lints'],
+        useAnalysisDriverMemoryByteStore =
+            args['use-analysis-driver-memory-byte-store'];
 
   /// The path to an analysis options file
   String get analysisOptionsFile =>
       contextBuilderOptions.defaultAnalysisOptionsFilePath;
 
   /// A table mapping the names of defined variables to their values.
   Map<String, String> get definedVariables =>
       contextBuilderOptions.declaredVariables;
 
   /// Whether to strictly follow the specification when generating warnings on
@@ skipping 251 matching lines @@
           hide: hide)
       ..addFlag('log',
           help: 'Log additional messages and exceptions.',
           defaultsTo: false,
           negatable: false,
           hide: hide)
       ..addFlag('enable_type_checks',
           help: 'Check types in constant evaluation.',
           defaultsTo: false,
           negatable: false,
+          hide: hide)
+      ..addFlag('use-analysis-driver-memory-byte-store',
+          help: 'Use memory byte store, not the file system cache.',
+          defaultsTo: false,
+          negatable: false,
           hide: hide);
 
     try {
       // TODO(scheglov) https://code.google.com/p/dart/issues/detail?id=11061
       args =
           args.map((String arg) => arg == '-batch' ? '--batch' : arg).toList();
       if (args.contains('--$ignoreUnrecognizedFlagsFlag')) {
         args = filterUnknownArguments(args, parser);
       }
       var results = parser.parse(args);
@@ skipping 63 matching lines @@
 
   static _showUsage(parser) {
     errorSink
         .writeln('Usage: $_binaryName [options...] <libraries to analyze...>');
     errorSink.writeln(parser.getUsage());
     errorSink.writeln('');
     errorSink.writeln(
         'For more information, see http://www.dartlang.org/tools/analyzer.');
   }
 }