net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/codeassist/select/SelectionOnSingleTypeReference.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v0.5
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v05.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  ******************************************************************************/
  11 package net.sourceforge.phpdt.internal.codeassist.select;
  12
  13 /*
  14  * Selection node build by the parser in any case it was intending to
  15  * reduce a type reference containing the selection identifier as a single
  16  * name reference.
  17  * e.g.
  18  *
  19  *      class X extends [start]Object[end]
  20  *
  21  *      ---> class X extends <SelectOnType:Object>
  22  *
  23  */
  24
  25 import net.sourceforge.phpdt.internal.compiler.ast.SingleTypeReference;
  26 import net.sourceforge.phpdt.internal.compiler.lookup.Binding;
  27 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  28 import net.sourceforge.phpdt.internal.compiler.lookup.ProblemReasons;
  29 import net.sourceforge.phpdt.internal.compiler.lookup.ReferenceBinding;
  30 import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
  31 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  32
  33 public class SelectionOnSingleTypeReference extends SingleTypeReference {
  34 public SelectionOnSingleTypeReference(char[] source, long pos) {
  35         super(source, pos);
  36 }
  37 public void aboutToResolve(Scope scope) {
  38         getTypeBinding(scope.parent); // step up from the ClassScope
  39 }
  40 public TypeBinding getTypeBinding(Scope scope) {
  41         // it can be a package, type or member type
  42         Binding binding = scope.getTypeOrPackage(new char[][] {token});
  43         if (!binding.isValidBinding()) {
  44                 scope.problemReporter().invalidType(this, (TypeBinding) binding);
  45                 throw new SelectionNodeFound();
  46         }
  47
  48         throw new SelectionNodeFound(binding);
  49 }
  50 public TypeBinding resolveTypeEnclosing(BlockScope scope, ReferenceBinding enclosingType) {
  51         super.resolveTypeEnclosing(scope, enclosingType);
  52
  53                 // tolerate some error cases
  54                 if (binding == null ||
  55                                 !(binding.isValidBinding() ||
  56                                         binding.problemId() == ProblemReasons.NotVisible))
  57                 throw new SelectionNodeFound();
  58         else
  59                 throw new SelectionNodeFound(binding);
  60 }
  61 public String toStringExpression(int tab){
  62
  63         return "<SelectOnType:" + new String(token) + ">" ; //$NON-NLS-2$ //$NON-NLS-1$
  64 }
  65 }