Context fix for linting.

pkg/analyzer/lib/src/plugin/linter_plugin.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.src.plugin.linter_plugin;
+
+import 'package:analyzer/plugin/linter.dart';
+import 'package:linter/src/linter.dart';
+import 'package:linter/src/rules/camel_case_types.dart';
+import 'package:linter/src/rules/constant_identifier_names.dart';
+import 'package:linter/src/rules/empty_constructor_bodies.dart';
+import 'package:linter/src/rules/library_names.dart';
+import 'package:linter/src/rules/library_prefixes.dart';
+import 'package:linter/src/rules/non_constant_identifier_names.dart';
+import 'package:linter/src/rules/one_member_abstracts.dart';
+import 'package:linter/src/rules/slash_for_doc_comments.dart';
+import 'package:linter/src/rules/super_goes_last.dart';
+import 'package:linter/src/rules/type_init_formals.dart';
+import 'package:linter/src/rules/unnecessary_brace_in_string_interp.dart';
+import 'package:plugin/plugin.dart';
+
+/// A plugin that defines the extension points and extensions that are inherently

[kevmoo, 2015/05/08 22:30:00]

long line

[pquitslund, 2015/05/08 22:39:19]

Done.

+/// defined by the linter.
+class LinterPlugin implements Plugin {
+
+  /// A subset of rules that we are considering "default".
+  static final List<LintRule> _rules = [
+    new CamelCaseTypes(),
+    new ConstantIdentifierNames(),
+    new EmptyConstructorBodies(),
+    new LibraryNames(),
+    new LibraryPrefixes(),
+    new NonConstantIdentifierNames(),
+    new OneMemberAbstracts(),
+    new SlashForDocComments(),
+    new SuperGoesLast(),
+    new TypeInitFormals(),
+    new UnnecessaryBraceInStringInterp()
+  ];
+
+  /// The unique identifier of this plugin.
+  static const String UNIQUE_IDENTIFIER = 'linter.core';
+
+  /// The simple identifier of the extension point that allows plugins to
+  /// register new lint rules with the analysis engine.
+  static const String LINT_RULE_EXTENSION_POINT = 'lint_rule';
+
+  /// The extension point that allows plugins to register new lint rules tasks with

[kevmoo, 2015/05/08 22:30:00]

long line

[pquitslund, 2015/05/08 22:39:19]

Done.

+  /// the analysis engine.
+  ExtensionPoint lintRuleExtensionPoint;
+
+  /// Return a list containing all contributed lint rules.
+  List<LintRule> get lintRules => lintRuleExtensionPoint.extensions;
+
+  @override
+  String get uniqueIdentifier => UNIQUE_IDENTIFIER;
+
+  @override
+  void registerExtensionPoints(RegisterExtensionPoint registerExtensionPoint) {
+    lintRuleExtensionPoint = registerExtensionPoint(
+        LINT_RULE_EXTENSION_POINT, _validateTaskExtension);
+  }
+
+  @override
+  void registerExtensions(RegisterExtension registerExtension) {
+    _rules.forEach((LintRule rule) =>
+        registerExtension(LINT_RULE_EXTENSION_POINT_ID, rule));
+  }
+
+  void _validateTaskExtension(Object extension) {
+    if (extension is! LintRule) {
+      String id = lintRuleExtensionPoint.uniqueIdentifier;
+      throw new ExtensionError('Extensions to $id must implement LintRule');
+    }
+  }
+}