add type static constants suggestions

pkg/analysis_server/lib/src/services/completion/suggestion_builder.dart

 // 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.completion.suggestion.builder;
 
 import 'package:analysis_server/src/protocol_server.dart' as protocol;
 import 'package:analysis_server/src/protocol_server.dart' hide Element,
     ElementKind;
 import 'package:analysis_server/src/services/completion/dart_completion_manager.dart';
@@ skipping 76 matching lines @@
     });
   }
 }
 
 /**
  * This class visits elements in a class and provides suggestions based upon
  * the visible members in that class. Clients should call
  * [ClassElementSuggestionBuilder.suggestionsFor].
  */
 class ClassElementSuggestionBuilder extends _AbstractSuggestionBuilder {
+  final bool staticOnly;
 
-  ClassElementSuggestionBuilder(DartCompletionRequest request) : super(request);
+  ClassElementSuggestionBuilder(DartCompletionRequest request, {bool staticOnly:
+      false})
+      : super(request),
+        this.staticOnly = staticOnly;
 
   @override
   visitClassElement(ClassElement element) {
     element.visitChildren(this);
     element.allSupertypes.forEach((InterfaceType type) {
       type.element.visitChildren(this);
     });
   }
 
   @override
   visitElement(Element element) {
     // ignored
   }
 
   @override
   visitFieldElement(FieldElement element) {
+    if (staticOnly && !element.isStatic) {
+      return;
+    }
     _addElementSuggestion(
         element,
         CompletionSuggestionKind.GETTER,
         element.type,
         element.enclosingElement);
   }
 
   @override
   visitMethodElement(MethodElement element) {
+    if (staticOnly && !element.isStatic) {
+      return;
+    }
     if (element.isOperator) {
       return;
     }
     _addElementSuggestion(
         element,
         CompletionSuggestionKind.METHOD,
         element.returnType,
         element.enclosingElement);
   }
 
   @override
   visitPropertyAccessorElement(PropertyAccessorElement element) {
+    if (staticOnly && !element.isStatic) {
+      return;
+    }
     if (element.isGetter) {
       _addElementSuggestion(
           element,
           CompletionSuggestionKind.GETTER,
           element.returnType,
           element.enclosingElement);
     } else if (element.isSetter) {
       _addElementSuggestion(
           element,
           CompletionSuggestionKind.SETTER,
           element.returnType,
           element.enclosingElement);
     }
   }
 
   /**
    * Add suggestions for the visible members in the given class
    */
   static void suggestionsFor(DartCompletionRequest request, Element element) {
     if (element is ClassElement) {
       return element.accept(new ClassElementSuggestionBuilder(request));
     }
   }
+
+  /**
+   * Add suggestions for the visible static members in the given class
+   */
+  static void staticSuggestionsFor(DartCompletionRequest request,
+      ClassElement element) {
+    return element.accept(
+        new ClassElementSuggestionBuilder(request, staticOnly: true));
+  }
 }
 
 /**
  * This class visits elements in a library and provides suggestions based upon
  * the visible members in that library. Clients should call
  * [LibraryElementSuggestionBuilder.suggestionsFor].
  */
 class LibraryElementSuggestionBuilder extends _AbstractSuggestionBuilder {
 
   LibraryElementSuggestionBuilder(DartCompletionRequest request)
@@ skipping 139 matching lines @@
     }
     if (type != null) {
       String typeName = type.displayName;
       if (typeName != null && typeName.length > 0 && typeName != 'dynamic') {
         suggestion.returnType = typeName;
       }
     }
     request.suggestions.add(suggestion);
   }
 }