net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/SuperReference.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 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 net.sourceforge.phpdt.internal.compiler.ast;
  12
  13 import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
  14 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  15 import net.sourceforge.phpdt.internal.compiler.lookup.SourceTypeBinding;
  16 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  17
  18 public class SuperReference extends ThisReference {
  19
  20         public SuperReference(int sourceStart, int sourceEnd) {
  21                 super(sourceStart, sourceEnd);
  22         }
  23
  24         public static ExplicitConstructorCall implicitSuperConstructorCall() {
  25                 return new ExplicitConstructorCall(
  26                                 ExplicitConstructorCall.ImplicitSuper);
  27         }
  28
  29         public boolean isImplicitThis() {
  30
  31                 return false;
  32         }
  33
  34         public boolean isSuper() {
  35
  36                 return true;
  37         }
  38
  39         public boolean isThis() {
  40
  41                 return false;
  42         }
  43
  44         public TypeBinding resolveType(BlockScope scope) {
  45                 constant = NotAConstant;
  46                 if (!checkAccess(scope.methodScope()))
  47                         return null;
  48                 SourceTypeBinding enclosingTb = scope.enclosingSourceType();
  49                 if (scope.isJavaLangObject(enclosingTb)) {
  50                         scope.problemReporter().cannotUseSuperInJavaLangObject(this);
  51                         return null;
  52                 }
  53                 return this.resolvedType = enclosingTb.superclass;
  54         }
  55
  56         public String toStringExpression() {
  57
  58                 return "super"; //$NON-NLS-1$
  59
  60         }
  61
  62         public void traverse(IAbstractSyntaxTreeVisitor visitor,
  63                         BlockScope blockScope) {
  64                 visitor.visit(this, blockScope);
  65                 visitor.endVisit(this, blockScope);
  66         }
  67 }