Import analysis_services.dart into analysis_server.dart.

pkg/analysis_services/lib/index/index.dart

Index: pkg/analysis_services/lib/index/index.dart
diff --git a/pkg/analysis_services/lib/index/index.dart b/pkg/analysis_services/lib/index/index.dart
deleted file mode 100644
index acfc8351e439cea12722351873c8c6dced98a428..0000000000000000000000000000000000000000
--- a/pkg/analysis_services/lib/index/index.dart
+++ /dev/null
@@ -1,379 +0,0 @@
-// Copyright (c) 2014, 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 services.index;
-
-import 'dart:async';
-
-import 'package:analyzer/src/generated/ast.dart';
-import 'package:analyzer/src/generated/element.dart';
-import 'package:analyzer/src/generated/engine.dart';
-import 'package:analyzer/src/generated/html.dart';
-import 'package:analyzer/src/generated/source.dart';
-
-
-/**
- * The interface [Index] defines the behavior of objects that maintain an index
- * storing relations between [Element]s.
- *
- * Any modification operations are executed before any read operation.
- * There is no guarantee about the order in which the [Future]s for read
- * operations will complete.
- */
-abstract class Index {
-  /**
-   * Answers index statistics.
-   */
-  String get statistics;
-
-  /**
-   * Removes from the index all the information.
-   */
-  void clear();
-
-  /**
-   * Asynchronously returns a list containing all of the locations of the
-   * elements that have the given [relationship] with the given [element].
-   *
-   * For example, if the element represents a function and the relationship is
-   * the `is-invoked-by` relationship, then the locations will be all of the
-   * places where the function is invoked.
-   *
-   * [element] - the element that has the relationship with the locations to be
-   * returned.
-   *
-   * [relationship] - the relationship between the given element and the
-   * locations to be returned.
-   */
-  Future<List<Location>> getRelationships(Element element,
-      Relationship relationship);
-
-  /**
-   * Processes the given [HtmlUnit] in order to record the relationships.
-   *
-   * [context] - the [AnalysisContext] in which [HtmlUnit] was resolved.
-   * [unit] - the [HtmlUnit] being indexed.
-   */
-  void indexHtmlUnit(AnalysisContext context, HtmlUnit unit);
-
-  /**
-   * Processes the given [CompilationUnit] in order to record the relationships.
-   *
-   * [context] - the [AnalysisContext] in which [CompilationUnit] was resolved.
-   * [unit] - the [CompilationUnit] being indexed.
-   */
-  void indexUnit(AnalysisContext context, CompilationUnit unit);
-
-  /**
-   * Removes from the index all of the information associated with [context].
-   *
-   * This method should be invoked when [context] is disposed.
-   */
-  void removeContext(AnalysisContext context);
-
-  /**
-   * Removes from the index all of the information associated with elements or
-   * locations in [source]. This includes relationships between an element in
-   * [source] and any other locations, relationships between any other elements
-   * and a location within [source].
-   *
-   * This method should be invoked when [source] is no longer part of the code
-   * base.
-   *
-   * [context] - the [AnalysisContext] in which [source] being removed
-   * [source] - the [Source] being removed
-   */
-  void removeSource(AnalysisContext context, Source source);
-
-  /**
-   * Removes from the index all of the information associated with elements or
-   * locations in the given sources. This includes relationships between an
-   * element in the given sources and any other locations, relationships between
-   * any other elements and a location within the given sources.
-   *
-   * This method should be invoked when multiple sources are no longer part of
-   * the code base.
-   *
-   * [context] - the [AnalysisContext] in which [Source]s being removed.
-   * [container] - the [SourceContainer] holding the sources being removed.
-   */
-  void removeSources(AnalysisContext context, SourceContainer container);
-
-  /**
-   * Starts the index.
-   * Should be called before any other method.
-   */
-  void run();
-
-  /**
-   * Stops the index.
-   * After calling this method operations may not be executed.
-   */
-  void stop();
-}
-
-
-/**
- * Constants used when populating and accessing the index.
- */
-class IndexConstants {
-  /**
-   * Left: an Angular element.
-   *   Is referenced at.
-   * Right: location.
-   */
-  static final Relationship ANGULAR_REFERENCE =
-      Relationship.getRelationship("angular-reference");
-
-  /**
-   * Left: an Angular component.
-   *   Is closed "/>" at.
-   * Right: location.
-   */
-  static final Relationship ANGULAR_CLOSING_TAG_REFERENCE =
-      Relationship.getRelationship("angular-closing-tag-reference");
-
-  /**
-   * Left: the Universe or a Library.
-   *   Defines an Element.
-   * Right: an Element declaration.
-   */
-  static final Relationship DEFINES = Relationship.getRelationship("defines");
-
-  /**
-   * Left: class.
-   *   Is extended by.
-   * Right: other class declaration.
-   */
-  static final Relationship IS_EXTENDED_BY =
-      Relationship.getRelationship("is-extended-by");
-
-  /**
-   * Left: class.
-   *   Is implemented by.
-   * Right: other class declaration.
-   */
-  static final Relationship IS_IMPLEMENTED_BY =
-      Relationship.getRelationship("is-implemented-by");
-
-  /**
-   * Left: class.
-   *   Is mixed into.
-   * Right: other class declaration.
-   */
-  static final Relationship IS_MIXED_IN_BY =
-      Relationship.getRelationship("is-mixed-in-by");
-
-  /**
-   * Left: local variable, parameter.
-   *   Is read at.
-   * Right: location.
-   */
-  static final Relationship IS_READ_BY =
-      Relationship.getRelationship("is-read-by");
-
-  /**
-   * Left: local variable, parameter.
-   *   Is both read and written at.
-   * Right: location.
-   */
-  static final Relationship IS_READ_WRITTEN_BY =
-      Relationship.getRelationship("is-read-written-by");
-
-  /**
-   * Left: local variable, parameter.
-   *   Is written at.
-   * Right: location.
-   */
-  static final Relationship IS_WRITTEN_BY =
-      Relationship.getRelationship("is-written-by");
-
-  /**
-   * Left: function, method, variable, getter.
-   *   Is invoked at.
-   * Right: location.
-   */
-  static final Relationship IS_INVOKED_BY =
-      Relationship.getRelationship("is-invoked-by");
-
-  /**
-   * Left: function, function type, class, field, method.
-   *   Is referenced (and not invoked, read/written) at.
-   * Right: location.
-   */
-  static final Relationship IS_REFERENCED_BY =
-      Relationship.getRelationship("is-referenced-by");
-
-  /**
-   * Left: name element.
-   *   Is defined by.
-   * Right: concrete element declaration.
-   */
-  static final Relationship NAME_IS_DEFINED_BY =
-      Relationship.getRelationship("name-is-defined-by");
-
-  IndexConstants._();
-}
-
-
-/**
- * Instances of the class [Location] represent a location related to an element.
- *
- * The location is expressed as an offset and length, but the offset is relative
- * to the resource containing the element rather than the start of the element
- * within that resource.
- */
-class Location {
-  static const int _FLAG_QUALIFIED = 1 << 0;
-  static const int _FLAG_RESOLVED = 1 << 1;
-
-  /**
-   * An empty array of locations.
-   */
-  static const List<Location> EMPTY_ARRAY = const <Location>[];
-
-  /**
-   * The element containing this location.
-   */
-  final Element element;
-
-  /**
-   * The offset of this location within the resource containing the element.
-   */
-  final int offset;
-
-  /**
-   * The length of this location.
-   */
-  final int length;
-
-  /**
-   * The flags of this location.
-   */
-  int _flags;
-
-  /**
-   * Initializes a newly created location to be relative to the given element at
-   * the given [offset] with the given [length].
-   *
-   * [element] - the [Element] containing this location.
-   * [offset] - the offset within the resource containing [element].
-   * [length] - the length of this location
-   */
-  Location(this.element, this.offset, this.length, {bool isQualified: false,
-      bool isResolved: true}) {
-    if (element == null) {
-      throw new ArgumentError("element location cannot be null");
-    }
-    _flags = 0;
-    if (isQualified) {
-      _flags |= _FLAG_QUALIFIED;
-    }
-    if (isResolved) {
-      _flags |= _FLAG_RESOLVED;
-    }
-  }
-
-  /**
-   * Returns `true` if this location is a qualified reference.
-   */
-  bool get isQualified => (_flags & _FLAG_QUALIFIED) != 0;
-
-  /**
-   * Returns `true` if this location is a resolved reference.
-   */
-  bool get isResolved => (_flags & _FLAG_RESOLVED) != 0;
-
-  @override
-  String toString() {
-    String flagsStr = '';
-    if (isQualified) {
-      flagsStr += ' qualified';
-    }
-    if (isResolved) {
-      flagsStr += ' resolved';
-    }
-    return '[${offset} - ${(offset + length)}) $flagsStr in ${element}';
-  }
-}
-
-
-/**
- * A [Location] with attached data.
- */
-class LocationWithData<D> extends Location {
-  final D data;
-
-  LocationWithData(Location location, this.data)
-      : super(location.element, location.offset, location.length);
-}
-
-
-/**
- * An [Element] which is used to index references to the name without specifying
- * a concrete kind of this name - field, method or something else.
- */
-class NameElement extends ElementImpl {
-  NameElement(String name) : super("name:${name}", -1);
-
-  @override
-  ElementKind get kind => ElementKind.NAME;
-
-  @override
-  accept(ElementVisitor visitor) => null;
-}
-
-
-/**
- * Relationship between an element and a location. Relationships are identified
- * by a globally unique identifier.
- */
-class Relationship {
-  /**
-   * A table mapping relationship identifiers to relationships.
-   */
-  static Map<String, Relationship> _RELATIONSHIP_MAP = {};
-
-  /**
-   * The unique identifier for this relationship.
-   */
-  final String identifier;
-
-  /**
-   * Initialize a newly created relationship with the given unique identifier.
-   */
-  Relationship(this.identifier);
-
-  @override
-  String toString() => identifier;
-
-  /**
-   * Returns the relationship with the given unique [identifier].
-   */
-  static Relationship getRelationship(String identifier) {
-    Relationship relationship = _RELATIONSHIP_MAP[identifier];
-    if (relationship == null) {
-      relationship = new Relationship(identifier);
-      _RELATIONSHIP_MAP[identifier] = relationship;
-    }
-    return relationship;
-  }
-}
-
-
-/**
- * An element to use when we want to request "defines" relations without
- * specifying an exact library.
- */
-class UniverseElement extends ElementImpl {
-  static final UniverseElement INSTANCE = new UniverseElement._();
-
-  UniverseElement._() : super("--universe--", -1);
-
-  @override
-  ElementKind get kind => ElementKind.UNIVERSE;
-
-  @override
-  accept(ElementVisitor visitor) => null;
-}