Support for --perf in analyzer_experimental.

pkg/analyzer_experimental/bin/analyzer.dart

 #!/usr/bin/env 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.
 
 /** The entry point for the analyzer. */
 library analyzer;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:analyzer_experimental/src/generated/engine.dart';
 import 'package:analyzer_experimental/src/generated/error.dart';
+import 'package:analyzer_experimental/src/generated/java_core.dart' show JavaSystem;
 import 'package:analyzer_experimental/options.dart';
 
 import 'package:analyzer_experimental/src/analyzer_impl.dart';
 import 'package:analyzer_experimental/src/error_formatter.dart';
 
 void main() {
   var args = new Options().arguments;
   var options = CommandLineOptions.parse(args);
   if (options.shouldBatch) {
     BatchRunner.runAsBatch(args, (List<String> args) {
       var options = CommandLineOptions.parse(args);
       return _runAnalyzer(options);
     });
   } else {
+    int startTime = JavaSystem.currentTimeMillis();
+
     ErrorSeverity result = _runAnalyzer(options);
+
+    if (options.perf) {
+      int totalTime = JavaSystem.currentTimeMillis() - startTime;
+      print("scan:${PerformanceStatistics.scan.result}");
+      print("parse:${PerformanceStatistics.parse.result}");
+      print("resolve:${PerformanceStatistics.resolve.result}");
+      print("errors:${PerformanceStatistics.errors.result}");
+      print("hints:${PerformanceStatistics.hints.result}");
+      print("total:$totalTime");
+    }
+
     exit(result.ordinal);
   }
 }
 
 ErrorSeverity _runAnalyzer(CommandLineOptions options) {
   if (!options.machineFormat) {
     stdout.writeln("Analyzing ${options.sourceFiles}...");
   }
   ErrorSeverity allResult = ErrorSeverity.NONE;
   String sourcePath = options.sourceFiles[0];
@@ skipping 75 matching lines @@
         stdout.writeln('>>> TEST $resultPassString ${stopwatch.elapsedMilliseconds}ms');
       } catch (e, stackTrace) {
         stderr.writeln(e);
         stderr.writeln(stackTrace);
         stderr.writeln('>>> EOF STDERR');
         stdout.writeln('>>> TEST CRASH');
       }
     });
   }
 }