Initial binding of RenameRefactoring service to Eclipse.

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/editor/DartEditor.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/editor/DartEditor.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/editor/DartEditor.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/editor/DartEditor.java
index c81ff4dc065ec89c5ecd025a33af774a676eab96..e29dbdbf30d9fefe9c49347217234613db65553e 100644
--- a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/editor/DartEditor.java
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/editor/DartEditor.java
@@ -17,19 +17,9 @@ import com.google.dart.compiler.ast.DartNode;
 import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.ast.DartVariable;
 import com.google.dart.compiler.resolver.Element;
-import com.google.dart.engine.context.AnalysisException;
-import com.google.dart.engine.element.CompilationUnitElement;
-import com.google.dart.engine.error.AnalysisError;
-import com.google.dart.engine.error.AnalysisErrorListener;
-import com.google.dart.engine.internal.builder.CompilationUnitBuilder;
-import com.google.dart.engine.internal.context.AnalysisContextImpl;
-import com.google.dart.engine.parser.Parser;
-import com.google.dart.engine.scanner.StringScanner;
-import com.google.dart.engine.scanner.Token;
-import com.google.dart.engine.source.FileBasedSource;
+import com.google.dart.engine.context.AnalysisContext;
+import com.google.dart.engine.element.LibraryElement;
 import com.google.dart.engine.source.Source;
-import com.google.dart.engine.source.SourceFactory;
-import com.google.dart.engine.utilities.io.FileUtilities;
 import com.google.dart.tools.core.DartCore;
 import com.google.dart.tools.core.DartCoreDebug;
 import com.google.dart.tools.core.formatter.DefaultCodeFormatterConstants;
@@ -95,6 +85,7 @@ import com.ibm.icu.text.BreakIterator;
 
 import org.eclipse.core.commands.operations.IOperationApprover;
 import org.eclipse.core.commands.operations.IUndoContext;
+import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.ProjectScope;
 import org.eclipse.core.runtime.CoreException;
@@ -210,7 +201,6 @@ import org.eclipse.ui.views.contentoutline.ContentOutline;
 import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
 import org.osgi.service.prefs.BackingStoreException;
 
-import java.io.IOException;
 import java.lang.ref.SoftReference;
 import java.lang.reflect.InvocationTargetException;
 import java.text.CharacterIterator;
@@ -2102,59 +2092,74 @@ public abstract class DartEditor extends AbstractDecoratedTextEditor implements
    * Alternative to {@link #getInputDartElement()} that returns the Analysis engine
    * {@link com.google.dart.engine.element.Element} instead of a {@link DartElement}.
    */
-  public com.google.dart.engine.element.Element getInputElement() {
+  public com.google.dart.engine.element.CompilationUnitElement getInputElement() {
     com.google.dart.engine.ast.CompilationUnit unit = getInputUnit();
     return unit == null ? null : unit.getElement();
   }
 
   public com.google.dart.engine.ast.CompilationUnit getInputUnit() {
-    // TODO(jwren) the Element should not be computed every time, instead, after the AnalysisContext
-    // API has been decided on, this method should get the information from a shared cache
-    java.io.File file = null;
-    if (getEditorInput() instanceof IFileEditorInput) {
-      IFileEditorInput input = (IFileEditorInput) getEditorInput();
-      if (input.getFile().getLocation() != null) {
-        file = input.getFile().getLocation().toFile();
-      }
-    }
-
-    if (file == null) {
-      return null;
-    }
-
-    AnalysisErrorListener ael = new AnalysisErrorListener() {
-      @Override
-      public void onError(AnalysisError error) {
-        // do nothing
-      }
-    };
-
-    // Scanner
-    Source source = new FileBasedSource(new SourceFactory(), file);
-    StringScanner scanner = null;
+    // TODO(scheglov) updated to use most recent API
     try {
-      scanner = new StringScanner(source, FileUtilities.getContents(file), ael);
-    } catch (IOException e) {
-      e.printStackTrace();
-    }
-    if (scanner == null) {
-      return null;
-    }
-    Token token = scanner.tokenize();
-
-    // Parser
-    Parser parser = new Parser(source, ael);
-    final com.google.dart.engine.ast.CompilationUnit unit = parser.parseCompilationUnit(token);
-
-    // Element Builder
-    CompilationUnitBuilder builder = new CompilationUnitBuilder(new AnalysisContextImpl(), ael);
-    CompilationUnitElement element = null;
-    try {
-      element = builder.buildCompilationUnit(source, unit);
-    } catch (AnalysisException e) {
-      e.printStackTrace();
-    }
-    return unit;
+      IFile file = getInputFile();
+      if (file == null) {
+        return null;
+      }
+      com.google.dart.tools.core.analysis.model.Project project = DartCore.getProjectManager().getProject(
+          file.getProject());
+      AnalysisContext context = project.getContext(file);
+      Source source = project.getSource(file);
+      LibraryElement libraryElement = context.getLibraryElement(source);
+      return context.resolve(source, libraryElement);
+    } catch (Throwable e) {
+      throw new Error(e);
+    }
+
+//    // TODO(jwren) the Element should not be computed every time, instead, after the AnalysisContext
+//    // API has been decided on, this method should get the information from a shared cache
+//    java.io.File file = null;
+//    if (getEditorInput() instanceof IFileEditorInput) {
+//      IFileEditorInput input = (IFileEditorInput) getEditorInput();
+//      if (input.getFile().getLocation() != null) {
+//        file = input.getFile().getLocation().toFile();
+//      }
+//    }
+//
+//    if (file == null) {
+//      return null;
+//    }
+//
+//    AnalysisErrorListener ael = new AnalysisErrorListener() {
+//      @Override
+//      public void onError(AnalysisError error) {
+//        // do nothing
+//      }
+//    };
+//    // Scanner
+//    Source source = new FileBasedSource(new SourceFactory(), file);
+//    StringScanner scanner = null;
+//    try {
+//      scanner = new StringScanner(source, FileUtilities.getContents(file), ael);
+//    } catch (IOException e) {
+//      e.printStackTrace();
+//    }
+//    if (scanner == null) {
+//      return null;
+//    }
+//    Token token = scanner.tokenize();
+//
+//    // Parser
+//    Parser parser = new Parser(source, ael);
+//    final com.google.dart.engine.ast.CompilationUnit unit = parser.parseCompilationUnit(token);
+//
+//    // Element Builder
+//    CompilationUnitBuilder builder = new CompilationUnitBuilder(new AnalysisContextImpl(), ael);
+//    CompilationUnitElement element = null;
+//    try {
+//      element = builder.buildCompilationUnit(source, unit);
+//    } catch (AnalysisException e) {
+//      e.printStackTrace();
+//    }
+//    return unit;
   }
 
   @Override
@@ -3137,11 +3142,19 @@ public abstract class DartEditor extends AbstractDecoratedTextEditor implements
   protected IOperationApprover getUndoRedoOperationApprover(IUndoContext undoContext) {
     // since IResource is a more general way to compare dart elements, we
     // use this as the preferred class for comparing objects.
-    return new NonLocalUndoUserApprover(
-        undoContext,
-        this,
-        new Object[] {getInputDartElement()},
-        IResource.class);
+    if (DartCoreDebug.ENABLE_NEW_ANALYSIS) {
+      return new NonLocalUndoUserApprover(
+          undoContext,
+          this,
+          new Object[] {getInputFile()},
+          IResource.class);
+    } else {
+      return new NonLocalUndoUserApprover(
+          undoContext,
+          this,
+          new Object[] {getInputDartElement()},
+          IResource.class);
+    }
   }
 
   @Override
@@ -4049,6 +4062,15 @@ public abstract class DartEditor extends AbstractDecoratedTextEditor implements
     return key != null && store.getBoolean(key);
   }
 
+  private IFile getInputFile() {
+    IFile file = null;
+    if (getEditorInput() instanceof IFileEditorInput) {
+      IFileEditorInput input = (IFileEditorInput) getEditorInput();
+      file = input.getFile();
+    }
+    return file;
+  }
+
   /**
    * Returns the lock object for the given annotation model.
    *