src/org/eclipse/jdt/internal/compiler/ast/SuperReference.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.compiler.ast;
  12
  13 import org.eclipse.jdt.internal.compiler.ASTVisitor;
  14 import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
  15 import org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding;
  16 import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
  17
  18 public class SuperReference extends ThisReference {
  19
  20         public SuperReference(int sourceStart, int sourceEnd) {
  21
  22                 super(sourceStart, sourceEnd);
  23         }
  24
  25         public static ExplicitConstructorCall implicitSuperConstructorCall() {
  26
  27                 return new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
  28         }
  29
  30         public boolean isImplicitThis() {
  31
  32                 return false;
  33         }
  34
  35         public boolean isSuper() {
  36
  37                 return true;
  38         }
  39
  40         public boolean isThis() {
  41
  42                 return false ;
  43         }
  44
  45         public StringBuffer printExpression(int indent, StringBuffer output){
  46
  47                 return output.append("super"); //$NON-NLS-1$
  48
  49         }
  50
  51         public TypeBinding resolveType(BlockScope scope) {
  52
  53                 constant = NotAConstant;
  54                 if (!checkAccess(scope.methodScope()))
  55                         return null;
  56                 SourceTypeBinding enclosingTb = scope.enclosingSourceType();
  57                 if (enclosingTb.id == T_Object) {
  58                         scope.problemReporter().cannotUseSuperInJavaLangObject(this);
  59                         return null;
  60                 }
  61                 return this.resolvedType = enclosingTb.superclass;
  62         }
  63
  64         public void traverse(ASTVisitor visitor, BlockScope blockScope) {
  65                 visitor.visit(this, blockScope);
  66                 visitor.endVisit(this, blockScope);
  67         }
  68 }