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   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 completion identifier as part
  16  * of a qualified name.
  17  * e.g.
  18  *
  19  *      class X extends java.lang.[start]Object[end]
  20  *
  21  *      ---> class X extends <SelectOnType:java.lang.Object>
  22  *
  23  */
  24
  25 import net.sourceforge.phpdt.internal.compiler.ast.QualifiedTypeReference;
  26 import net.sourceforge.phpdt.internal.compiler.lookup.Binding;
  27 import net.sourceforge.phpdt.internal.compiler.lookup.ProblemReasons;
  28 import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
  29 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  30 import net.sourceforge.phpdt.internal.compiler.util.CharOperation;
  31
  32 public class SelectionOnQualifiedTypeReference extends QualifiedTypeReference {
  33 public SelectionOnQualifiedTypeReference(char[][] previousIdentifiers, char[] selectionIdentifier, long[] positions) {
  34         super(
  35                 CharOperation.arrayConcat(previousIdentifiers, selectionIdentifier),
  36                 positions);
  37 }
  38 public void aboutToResolve(Scope scope) {
  39         getTypeBinding(scope.parent); // step up from the ClassScope
  40 }
  41 public TypeBinding getTypeBinding(Scope scope) {
  42         // it can be a package, type or member type
  43         Binding binding = scope.getTypeOrPackage(tokens);
  44         if (!binding.isValidBinding()) {
  45                         // tolerate some error cases
  46                         if (binding.problemId() == ProblemReasons.NotVisible){
  47                                 throw new SelectionNodeFound(binding);
  48                         }
  49                 scope.problemReporter().invalidType(this, (TypeBinding) binding);
  50                 throw new SelectionNodeFound();
  51         }
  52
  53         throw new SelectionNodeFound(binding);
  54 }
  55 public String toStringExpression(int tab) {
  56
  57         StringBuffer buffer = new StringBuffer();
  58         buffer.append("<SelectOnType:"); //$NON-NLS-1$
  59         for (int i = 0, length = tokens.length; i < length; i++) {
  60                 buffer.append(tokens[i]);
  61                 if (i != length - 1)
  62                         buffer.append("."); //$NON-NLS-1$
  63         }
  64         buffer.append(">"); //$NON-NLS-1$
  65         return buffer.toString();
  66 }
  67 }