Add new performance option

pkg/analyzer/lib/options.dart

 // 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 options;
 
 import 'dart:io';
 
 import 'package:args/args.dart';
 
@@ skipping 21 matching lines @@
 
   /** Whether to show performance statistics */
   final bool perf;
 
   /** Whether to show package: warnings */
   final bool showPackageWarnings;
 
   /** Whether to show SDK warnings */
   final bool showSdkWarnings;
 
+  /** Whether to show both cold and hot performance statistics */
+  final bool warmPerf;
+
   /** Whether to treat warnings as fatal */
   final bool warningsAreFatal;
 
   /** The path to the dart SDK */
   final String dartSdkPath;
 
   /** The path to the package root */
   final String packageRootPath;
 
   /** The source files to analyze */
   final List<String> sourceFiles;
 
   /** Whether to log additional analysis messages and exceptions */
   final bool log;
 
   /**
    * Initialize options from the given parsed [args].
    */
   CommandLineOptions._fromArgs(ArgResults args)
     : shouldBatch = args['batch'],
       machineFormat = args['machine'] || args['format'] == 'machine',
       displayVersion = args['version'],
       disableHints = args['no-hints'],
       ignoreUnrecognizedFlags = args['ignore-unrecognized-flags'],
       perf = args['perf'],
       showPackageWarnings = args['show-package-warnings'] || args['package-warnings'],
       showSdkWarnings = args['show-sdk-warnings'] || args['warnings'],
+      warmPerf = args['warm-perf'],
       warningsAreFatal = args['fatal-warnings'],
       dartSdkPath = args['dart-sdk'],
       packageRootPath = args['package-root'],
       log = args['log'],
       sourceFiles = args.rest;
 
   /**
    * Parse [args] into [CommandLineOptions] describing the specified
    * analyzer options. In case of a format error, prints error and exists.
    */
@@ skipping 41 matching lines @@
           defaultsTo: false, negatable: false)
       ..addFlag('package-warnings',
           help: 'Show warnings from package: imports',
           defaultsTo: false, negatable: false)
       ..addFlag('show-package-warnings',
           help: 'Show warnings from package: imports (deprecated)',
           defaultsTo: false, negatable: false)
       ..addFlag('perf',
           help: 'Show performance statistics',
           defaultsTo: false, negatable: false)
+      ..addFlag('warm-perf',
+          help: 'Show both cold and warm performance statistics',
+          defaultsTo: false, negatable: false, hide: true)
       ..addFlag('warnings', help: 'Show warnings from SDK imports',
           defaultsTo: false, negatable: false)
       ..addFlag('show-sdk-warnings', help: 'Show warnings from SDK imports (deprecated)',
           defaultsTo: false, negatable: false)
       ..addFlag('help', abbr: 'h', help: 'Display this help message',
           defaultsTo: false, negatable: false)
       ..addFlag('log', help: 'Log additional messages and exceptions',
         defaultsTo: false, negatable: false, hide: true);
 
     try {
@@ skipping 141 matching lines @@
 
   _getNextFlagIndex(args, i) {
     for ( ; i < args.length; ++i) {
       if (args[i].startsWith('--')) {
         return i;
       }
     }
     return i;
   }
 }