Remove the AnalysisOptionsProcessor

pkg/analyzer/lib/src/plugin/plugin_configuration.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.plugin_configuration;
-
-import 'package:analyzer/plugin/options.dart';
-import 'package:analyzer/src/generated/engine.dart';
-import 'package:yaml/yaml.dart';
-
-const _analyzerOptionScope = 'analyzer';
-
-const _pluginOptionScope = 'plugins';
-
-/// Parse the given string into a plugin manifest.
-PluginManifest parsePluginManifestString(String manifestSource) {
-  var yaml = loadYaml(manifestSource);
-  if (yaml == null) {
-    return null;
-  }
-  _verifyMap(yaml, 'plugin manifest');
-  Iterable<String> pluginHost = _parseHosts(yaml['contributes_to']);
-  PluginInfo plugin = _parsePlugin(yaml);
-  return new PluginManifest(contributesTo: pluginHost, plugin: plugin);
-}
-
-String _asString(dynamic yaml) {
-  if (yaml != null && yaml is! String) {
-    throw new PluginConfigFormatException(
-        'Unable to parse pugin manifest, '
-        'expected `String`, got `${yaml.runtimeType}`',
-        yaml);
-  }
-  return yaml;
-}
-
-Iterable<String> _parseHosts(dynamic yaml) {
-  List<String> hosts = <String>[];
-  if (yaml is String) {
-    hosts.add(yaml);
-  } else if (yaml is YamlList) {
-    yaml.forEach((h) => hosts.add(_asString(h)));
-  }
-  return hosts;
-}
-
-PluginInfo _parsePlugin(dynamic yaml) {
-  if (yaml != null) {
-    _verifyMap(yaml, 'plugin manifest');
-    return new PluginInfo._fromYaml(details: yaml);
-  }
-  return null;
-}
-
-PluginInfo _processPluginMapping(dynamic name, dynamic details) {
-  if (name is String) {
-    if (details is String) {
-      return new PluginInfo(name: name, version: details);
-    }
-    if (details is YamlMap) {
-      return new PluginInfo._fromYaml(name: name, details: details);
-    }
-  }
-
-  return null;
-}
-
-_verifyMap(dynamic yaml, String context) {
-  if (yaml is! YamlMap) {
-    throw new PluginConfigFormatException(
-        'Unable to parse $context, '
-        'expected `YamlMap`, got `${yaml.runtimeType}`',
-        yaml);
-  }
-}
-
-/// A callback for error handling.
-typedef ErrorHandler(Exception e);
-
-/// Describes plugin configuration information as extracted from an
-/// analysis options map or plugin manifest.
-class PluginConfig {
-  final Iterable<PluginInfo> plugins;
-  PluginConfig(this.plugins);
-
-  /// Create a plugin configuration from an options map.
-  factory PluginConfig.fromOptions(Map<String, Object> options) {
-    List<PluginInfo> plugins = [];
-    var analyzerOptions = options[_analyzerOptionScope];
-    if (analyzerOptions != null) {
-      //TODO(pq): handle "raw" maps (https://github.com/dart-lang/sdk/issues/25126)
-      if (analyzerOptions is YamlMap) {
-        var pluginConfig = analyzerOptions[_pluginOptionScope];
-        if (pluginConfig is YamlMap) {
-          pluginConfig.forEach((name, details) {
-            var plugin = _processPluginMapping(name, details);
-            if (plugin != null) {
-              plugins.add(plugin);
-            }
-          });
-        } else {
-          // Anything but an empty list of plugins is treated as a format error.
-          if (pluginConfig != null) {
-            throw new PluginConfigFormatException(
-                'Unrecognized plugin config format, expected `YamlMap`, '
-                'got `${pluginConfig.runtimeType}`',
-                pluginConfig);
-          }
-        }
-      }
-    }
-
-    return new PluginConfig(plugins);
-  }
-}
-
-/// Thrown on bad plugin config format.
-class PluginConfigFormatException implements Exception {
-  /// Descriptive message.
-  final message;
-
-  /// The `plugin:` yaml node for generating detailed error feedback.
-  final yamlNode;
-  PluginConfigFormatException(this.message, this.yamlNode);
-}
-
-/// Extracts plugin config details from analysis options.
-class PluginConfigOptionsProcessor extends OptionsProcessor {
-  final ErrorHandler _errorHandler;
-
-  PluginConfig _config;
-
-  PluginConfigOptionsProcessor([this._errorHandler]);
-
-  /// The processed plugin config.
-  PluginConfig get config => _config;
-
-  @override
-  void onError(Exception exception) {
-    if (_errorHandler != null) {
-      _errorHandler(exception);
-    }
-  }
-
-  @override
-  void optionsProcessed(AnalysisContext context, Map<String, Object> options) {
-    _config = new PluginConfig.fromOptions(options);
-  }
-}
-
-/// Describes plugin information.
-class PluginInfo {
-  final String name;
-  final String className;
-  final String version;
-  final String libraryUri;
-  final String packageName;
-  final String path;
-  PluginInfo(
-      {this.name,
-      this.version,
-      this.className,
-      this.libraryUri,
-      this.packageName,
-      this.path});
-
-  factory PluginInfo._fromYaml({String name, YamlMap details}) =>
-      new PluginInfo(
-          name: name,
-          version: _asString(details['version']),
-          className: _asString(details['class_name']),
-          libraryUri: _asString(details['library_uri']),
-          packageName: _asString(details['package_name']),
-          path: _asString(details['path']));
-}
-
-/// Plugin manifests accompany plugin packages, providing
-/// configuration information for published plugins.
-///
-/// Provisionally, plugin manifests live in a file `plugin.yaml`
-/// at the root of the plugin package.
-///
-///     my_plugin/
-///       bin/
-///       lib/
-///       plugin.yaml
-///       pubspec.yaml
-///
-/// Provisional manifest file format:
-///
-///     class_name: MyAnalyzerPlugin
-///     library_uri: 'my_plugin/my_analyzer_plugin.dart'
-///     contributes_to: analyzer
-class PluginManifest {
-  PluginInfo plugin;
-  Iterable<String> contributesTo;
-  PluginManifest({this.plugin, this.contributesTo});
-}