Rename MirrorSystem.getName calls in dart2dart.

sdk/lib/_internal/compiler/implementation/dart_backend/backend.dart

 // Copyright (c) 2012, 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.
 
 part of dart_backend;
 
 // TODO(ahe): This class is simply wrong.  This backend should use
 // elements when it can, not AST nodes.  Perhaps a [Map<Element,
 // TreeElements>] is what is needed.
 class ElementAst {
@@ skipping 104 matching lines @@
     return new Block(rewriteNodeList(statements, builder.toLink()));
   }
 }
 
 class DartBackend extends Backend {
   final List<CompilerTask> tasks;
   final bool forceStripTypes;
   final bool stripAsserts;
   // TODO(antonm): make available from command-line options.
   final bool outputAst = false;
+  final Map<Node, String> renames;
+  final Map<LibraryElement, String> imports;
+  final Map<ClassNode, List<Node>> memberNodes;
+  // TODO(zarah) Maybe change this to a command-line option.
+  // Right now, it is set by the tests.
+  bool useMirrorHelperLibrary = false;
 
   Map<Element, TreeElements> get resolvedElements =>
       compiler.enqueuer.resolution.resolvedElements;
 
   /**
    * Tells whether it is safe to remove type declarations from variables,
    * functions parameters. It becomes not safe if:
    * 1) TypeError is used somewhere in the code,
    * 2) The code has typedefs in right hand side of IS checks,
    * 3) The code has classes which extend typedefs, have type arguments typedefs
@@ skipping 29 matching lines @@
         if (element.allSupertypes != null) {
           workQueue.addAll(element.allSupertypes.toList());
         }
       }
     }
     return true;
   }
 
   DartBackend(Compiler compiler, List<String> strips)
       : tasks = <CompilerTask>[],
+        renames = new Map<Node, String>(),
+        imports = new Map<LibraryElement, String>(),
+        memberNodes = new Map<ClassNode, List<Node>>(),
         forceStripTypes = strips.indexOf('types') != -1,
         stripAsserts = strips.indexOf('asserts') != -1,
         super(compiler);
 
   bool classNeedsRti(ClassElement cls) => false;
   bool methodNeedsRti(FunctionElement function) => false;
 
   void enqueueHelpers(ResolutionEnqueuer world, TreeElements elements) {
     // Right now resolver doesn't always resolve interfaces needed
     // for literals, so force them. TODO(antonm): fix in the resolver.
@@ skipping 204 matching lines @@
     // some unused identifier.
     collector.unresolvedNodes.add(synthesizedIdentifier);
     makePlaceholders(element) {
       collector.collect(element);
       if (element.isClass()) {
         classMembers[element].forEach(makePlaceholders);
       }
     }
     topLevelElements.forEach(makePlaceholders);
     // Create renames.
-    Map<Node, String> renames = new Map<Node, String>();
-    Map<LibraryElement, String> imports = new Map<LibraryElement, String>();
     bool shouldCutDeclarationTypes = forceStripTypes
         || (compiler.enableMinification
             && isSafeToRemoveTypeDeclarations(classMembers));
     renamePlaceholders(
         compiler, collector, renames, imports,
         fixedMemberNames, shouldCutDeclarationTypes);
 
     // Sort elements.
     final sortedTopLevels = sortElements(topLevelElements);
     final sortedClassMembers = new Map<ClassElement, List<Element>>();
@@ skipping 14 matching lines @@
           sortedClassMembers[topLevel].forEach(outputElement);
         } else {
           outputElement(topLevel);
         }
       }
       compiler.assembledCode = '<Program>\n$sb</Program>\n';
       return;
     }
 
     final topLevelNodes = <Node>[];
-    final memberNodes = new Map<ClassNode, List<Node>>();
     for (final element in sortedTopLevels) {
       topLevelNodes.add(elementAsts[element].ast);
       if (element.isClass() && !element.isMixinApplication) {
         final members = <Node>[];
         for (final member in sortedClassMembers[element]) {
           members.add(elementAsts[member].ast);
         }
         memberNodes[elementAsts[element].ast] = members;
       }
     }
 
+    if (useMirrorHelperLibrary && compiler.mirrorsLibrary != null) {
+      MirrorRenamer.addMirrorHelperImport(imports);
+    }
+
     final unparser = new EmitterUnparser(renames);
     emitCode(unparser, imports, topLevelNodes, memberNodes);
     compiler.assembledCode = unparser.result;
 
     // Output verbose info about size ratio of resulting bundle to all
     // referenced non-platform sources.
     logResultBundleSizeInfo(topLevelElements);
   }
 
   void logResultBundleSizeInfo(Set<Element> topLevelElements) {
     Iterable<LibraryElement> referencedLibraries =
         compiler.libraries.values.where(isUserLibrary);
     // Sum total size of scripts in each referenced library.
     int nonPlatformSize = 0;
     for (LibraryElement lib in referencedLibraries) {
       for (CompilationUnitElement compilationUnit in lib.compilationUnits) {
         nonPlatformSize += compilationUnit.script.text.length;
       }
     }
     int percentage = compiler.assembledCode.length * 100 ~/ nonPlatformSize;
     log('Total used non-platform files size: ${nonPlatformSize} bytes, '
         'bundle size: ${compiler.assembledCode.length} bytes (${percentage}%)');
   }
 
   log(String message) => compiler.log('[DartBackend] $message');
+
+  void registerStaticSend(Element element, Node node) {
+    if (useMirrorHelperLibrary && compiler.mirrorsLibrary != null) {
+      MirrorRenamer.handleStaticSend(renames, element, node, compiler);
+    }
+  }
 }
 
 class EmitterUnparser extends Unparser {
   final Map<Node, String> renames;
 
   EmitterUnparser(this.renames);
 
   visit(Node node) {
     if (node != null && renames.containsKey(node)) {
       sb.write(renames[node]);
@@ skipping 65 matching lines @@
 }
 
 compareElements(e0, e1) {
   int result = compareBy((e) => e.getLibrary().canonicalUri.toString())(e0, e1);
   if (result != 0) return result;
   return compareBy((e) => e.position().charOffset)(e0, e1);
 }
 
 List<Element> sortElements(Iterable<Element> elements) =>
     sorted(elements, compareElements);