Add ImportElement and ExportElement

pkg/compiler/lib/src/mirrors_used.dart

 // Copyright (c) 2013, 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 dart2js.mirrors_used;
 
 import 'common/tasks.dart' show
     CompilerTask;
 import 'compile_time_constants.dart' show
     ConstantCompiler;
@@ skipping 10 matching lines @@
     DartType,
     InterfaceType,
     TypeKind;
 import 'diagnostics/messages.dart' show
     MessageKind;
 import 'diagnostics/spannable.dart' show
     Spannable;
 import 'elements/elements.dart' show
     ClassElement,
     Element,
+    ImportElement,
     LibraryElement,
     MetadataAnnotation,
     ScopeContainerElement,
     VariableElement;
 import 'resolution/tree_elements.dart' show
     TreeElements;
 import 'tree/tree.dart' show
     Import,
     LibraryTag,
     NamedArgument,
@@ skipping 151 matching lines @@
     }
   }
 
   /// Collect all @MirrorsUsed from all libraries and represent them as
   /// [MirrorUsage].
   Map<LibraryElement, List<MirrorUsage>> collectMirrorsUsedAnnotation() {
     Map<LibraryElement, List<MirrorUsage>> result =
         new Map<LibraryElement, List<MirrorUsage>>();
     for (LibraryElement library in compiler.libraryLoader.libraries) {
       if (library.isInternalLibrary) continue;
-      for (LibraryTag tag in library.tags) {
-        Import importTag = tag.asImport();
-        if (importTag == null) continue;
+      for (ImportElement import in library.imports) {
         compiler.withCurrentElement(library, () {
           List<MirrorUsage> usages =
-              mirrorsUsedOnLibraryTag(library, importTag);
+              mirrorsUsedOnLibraryTag(library, import);
           if (usages != null) {
             List<MirrorUsage> existing = result[library];
             if (existing != null) {
               existing.addAll(usages);
             } else {
               result[library] = usages;
             }
           }
         });
       }
@@ skipping 30 matching lines @@
                                  List<MirrorUsage> overriddenUsages) {
       List<MirrorUsage> usages =
           usageMap.putIfAbsent(overridden, () => <MirrorUsage>[]);
       usages.addAll(overriddenUsages);
     });
   }
 
   /// Find @MirrorsUsed annotations on the given import [tag] in [library]. The
   /// annotations are represented as [MirrorUsage].
   List<MirrorUsage> mirrorsUsedOnLibraryTag(LibraryElement library,
-                                            Import tag) {
-    LibraryElement importedLibrary = library.getLibraryFromTag(tag);
+                                            ImportElement import) {
+    LibraryElement importedLibrary = import.importedLibrary;
     if (importedLibrary != compiler.mirrorsLibrary) {
       return null;
     }
     List<MirrorUsage> result = <MirrorUsage>[];
-    for (MetadataAnnotation metadata in tag.metadata) {
+    for (MetadataAnnotation metadata in import.metadata) {
       metadata.ensureResolved(compiler);
       ConstantValue value =
           compiler.constants.getConstantValue(metadata.constant);
       Element element = value.getType(compiler.coreTypes).element;
       if (element == compiler.mirrorsUsedClass) {
         result.add(buildUsage(value));
       }
     }
     return result;
   }
@@ skipping 194 matching lines @@
     List<Element> result = <Element>[];
     for (var entry in list) {
       if (entry is DartType) {
         DartType type = entry;
         result.add(type.element);
       } else {
         String string = entry;
         LibraryElement libraryCandiate;
         String libraryNameCandiate;
         for (LibraryElement l in compiler.libraryLoader.libraries) {
-          if (l.hasLibraryName()) {
-            String libraryName = l.getLibraryOrScriptName();
+          if (l.hasLibraryName) {
+            String libraryName = l.libraryOrScriptName;
             if (string == libraryName) {
               // Found an exact match.
               libraryCandiate = l;
               libraryNameCandiate = libraryName;
               break;
             } else if (string.startsWith('$libraryName.')) {
               if (libraryNameCandiate == null
                   || libraryNameCandiate.length < libraryName.length) {
                 // Found a better candiate
                 libraryCandiate = l;
@@ skipping 37 matching lines @@
   Element resolveLocalExpression(Element element, List<String> identifiers) {
     Element current = element;
     for (String identifier in identifiers) {
       Element e = findLocalMemberIn(current, identifier);
       if (e == null) {
         if (current.isLibrary) {
           LibraryElement library = current;
           compiler.reportHint(
               spannable, MessageKind.MIRRORS_CANNOT_RESOLVE_IN_LIBRARY,
               {'name': identifiers[0],
-               'library': library.getLibraryOrScriptName()});
+               'library': library.libraryOrScriptName});
         } else {
           compiler.reportHint(
               spannable, MessageKind.MIRRORS_CANNOT_FIND_IN_ELEMENT,
               {'name': identifier, 'element': current.name});
         }
         return current;
       }
       current = e;
     }
     return current;
@@ skipping 37 matching lines @@
       // @MirrorsUsed(targets: fisk)
       //                       ^^^^
       //
       // Instead of saying 'fisk' should pretty print the problematic constant
       // value.
       return spannable;
     }
     return node;
   }
 }