case-study/jdt-after/core refactoring/org/eclipse/jdt/internal/corext/refactoring/typeconstraints/ASTCreator.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.corext.refactoring.typeconstraints;
  12
  13 import org.eclipse.jdt.core.ICompilationUnit;
  14 import org.eclipse.jdt.core.WorkingCopyOwner;
  15 import org.eclipse.jdt.core.dom.ASTNode;
  16 import org.eclipse.jdt.core.dom.ASTParser;
  17 import org.eclipse.jdt.core.dom.CompilationUnit;
  18
  19 import org.eclipse.jdt.internal.corext.refactoring.util.RefactoringASTParser;
  20
  21 import org.eclipse.jdt.internal.ui.javaeditor.ASTProvider;
  22
  23
  24 public class ASTCreator {
  25
  26         public static final String CU_PROPERTY= "org.eclipse.jdt.ui.refactoring.cu"; //$NON-NLS-1$
  27
  28         private ASTCreator() {
  29                 //private
  30         }
  31
  32         public static CompilationUnit createAST(ICompilationUnit cu, WorkingCopyOwner workingCopyOwner) {
  33                 CompilationUnit cuNode= getCuNode(workingCopyOwner, cu);
  34                 cuNode.setProperty(CU_PROPERTY, cu);
  35                 return cuNode;
  36         }
  37
  38         private static CompilationUnit getCuNode(WorkingCopyOwner workingCopyOwner, ICompilationUnit cu) {
  39                 ASTParser p = ASTParser.newParser(ASTProvider.SHARED_AST_LEVEL);
  40                 p.setSource(cu);
  41                 p.setResolveBindings(true);
  42                 p.setWorkingCopyOwner(workingCopyOwner);
  43                 p.setCompilerOptions(RefactoringASTParser.getCompilerOptions(cu));
  44                 return (CompilationUnit) p.createAST(null);
  45         }
  46
  47         public static ICompilationUnit getCu(ASTNode node) {
  48                 Object property= node.getRoot().getProperty(CU_PROPERTY);
  49                 if (property instanceof ICompilationUnit)
  50                         return (ICompilationUnit)property;
  51                 return null;
  52         }
  53 }