Update linter engine to use driver (linter#743).

pkg/analyzer/lib/src/lint/linter.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.
 
+import 'dart:async';
 import 'dart:io';
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/token.dart';
+import 'package:analyzer/file_system/file_system.dart' as file_system;
 import 'package:analyzer/src/generated/engine.dart'
     show AnalysisErrorInfo, AnalysisErrorInfoImpl, Logger;
 import 'package:analyzer/src/generated/java_engine.dart' show CaughtException;
 import 'package:analyzer/src/generated/source.dart' show LineInfo;
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/lint/analysis.dart';
 import 'package:analyzer/src/lint/config.dart';
 import 'package:analyzer/src/lint/io.dart';
 import 'package:analyzer/src/lint/project.dart';
 import 'package:analyzer/src/lint/pub.dart';
@@ skipping 34 matching lines @@
   final LinterOptions options;
   final Reporter reporter;
 
   /// The total number of sources that were analyzed.  Only valid after
   /// [lintFiles] has been called.
   int numSourcesAnalyzed;
 
   /// Creates a new linter.
   DartLinter(this.options, {this.reporter: const PrintingReporter()});
 
-  Iterable<AnalysisErrorInfo> lintFiles(List<File> files) {
+  Future<Iterable<AnalysisErrorInfo>> lintFiles(List<File> files) async {
     List<AnalysisErrorInfo> errors = [];
-    var analysisDriver = new LintDriver(options);
-    errors.addAll(analysisDriver.analyze(files.where((f) => isDartFile(f))));
-    numSourcesAnalyzed = analysisDriver.numSourcesAnalyzed;
+    final lintDriver = new LintDriver(options);
+    errors.addAll(await lintDriver.analyze(files.where((f) => isDartFile(f))));
+    numSourcesAnalyzed = lintDriver.numSourcesAnalyzed;
     files.where((f) => isPubspecFile(f)).forEach((p) {
       numSourcesAnalyzed++;
       return errors.addAll(_lintPubspecFile(p));
     });
     return errors;
   }
 
   Iterable<AnalysisErrorInfo> lintPubspecSource(
       {String contents, String sourcePath}) {
     var results = <AnalysisErrorInfo>[];
@@ skipping 108 matching lines @@
 
   @override
   String toString() =>
       message == null ? "LinterException" : "LinterException: $message";
 }
 
 /// Linter options.
 class LinterOptions extends DriverOptions {
   Iterable<LintRule> enabledLints;
   LintFilter filter;
+  file_system.ResourceProvider resourceProvider;
   LinterOptions([this.enabledLints]) {
     enabledLints ??= Registry.ruleRegistry;
   }
   void configure(LintConfig config) {
     // TODO(pquitslund): revisit these default-to-on semantics.
     enabledLints = Registry.ruleRegistry.where((LintRule rule) =>
         !config.ruleConfigs.any((rc) => rc.disables(rule.name)));
     filter = new FileGlobFilter(config.fileIncludes, config.fileExcludes);
   }
 }
@@ skipping 148 matching lines @@
   final LinterOptions options;
   @override
   final Reporter reporter;
 
   @override
   int numSourcesAnalyzed;
 
   SourceLinter(this.options, {this.reporter: const PrintingReporter()});
 
   @override
-  Iterable<AnalysisErrorInfo> lintFiles(List<File> files) {
+  Future<Iterable<AnalysisErrorInfo>> lintFiles(List<File> files) async {
     List<AnalysisErrorInfo> errors = [];
-    var analysisDriver = new LintDriver(options);
-    errors.addAll(analysisDriver.analyze(files.where((f) => isDartFile(f))));
-    numSourcesAnalyzed = analysisDriver.numSourcesAnalyzed;
+    final lintDriver = new LintDriver(options);
+    errors.addAll(await lintDriver.analyze(files.where((f) => isDartFile(f))));
+    numSourcesAnalyzed = lintDriver.numSourcesAnalyzed;
     files.where((f) => isPubspecFile(f)).forEach((p) {
       numSourcesAnalyzed++;
       return errors.addAll(_lintPubspecFile(p));
     });
     return errors;
   }
 
   @override
   Iterable<AnalysisErrorInfo> lintPubspecSource(
       {String contents, String sourcePath}) {
@@ skipping 41 matching lines @@
 }
 
 class _LintCode extends LintCode {
   static final registry = <String, LintCode>{};
 
   factory _LintCode(String name, String message) => registry.putIfAbsent(
       name + message, () => new _LintCode._(name, message));
 
   _LintCode._(String name, String message) : super(name, message);
 }