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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 qualified name reference containing the assist identifier.
  16  * e.g.
  17  *
  18  *      class X {
  19  *    Y y;
  20  *    void foo() {
  21  *      y.fred.[start]ba[end]
  22  *    }
  23  *  }
  24  *
  25  *      ---> class X {
  26  *         Y y;
  27  *         void foo() {
  28  *           <SelectOnName:y.fred.ba>
  29  *         }
  30  *       }
  31  *
  32  */
  33
  34 import net.sourceforge.phpdt.internal.compiler.ast.QualifiedNameReference;
  35 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  36 import net.sourceforge.phpdt.internal.compiler.lookup.FieldBinding;
  37 import net.sourceforge.phpdt.internal.compiler.lookup.ProblemFieldBinding;
  38 import net.sourceforge.phpdt.internal.compiler.lookup.ProblemReasons;
  39 import net.sourceforge.phpdt.internal.compiler.lookup.ProblemReferenceBinding;
  40 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  41 import net.sourceforge.phpdt.internal.compiler.util.CharOperation;
  42
  43 public class SelectionOnQualifiedNameReference extends QualifiedNameReference {
  44         public long[] sourcePositions; // positions of each token, the last one being the positions of the completion identifier
  45 public SelectionOnQualifiedNameReference(char[][] previousIdentifiers, char[] selectionIdentifier, long[] positions) {
  46         super(
  47                 CharOperation.arrayConcat(previousIdentifiers, selectionIdentifier),
  48                 (int) (positions[0] >>> 32),
  49                 (int) positions[positions.length - 1]);
  50         this.sourcePositions = positions;
  51 }
  52 public TypeBinding resolveType(BlockScope scope) {
  53         // it can be a package, type, member type, local variable or field
  54         binding = scope.getBinding(tokens, this);
  55         if (!binding.isValidBinding()) {
  56                 if (binding instanceof ProblemFieldBinding) {
  57                         // tolerate some error cases
  58                         if (binding.problemId() == ProblemReasons.NotVisible
  59                                         || binding.problemId() == ProblemReasons.InheritedNameHidesEnclosingName
  60                                         || binding.problemId() == ProblemReasons.NonStaticReferenceInConstructorInvocation
  61                                         || binding.problemId() == ProblemReasons.NonStaticReferenceInStaticContext) {
  62                                 throw new SelectionNodeFound(binding);
  63                         }
  64                         scope.problemReporter().invalidField(this, (FieldBinding) binding);
  65                 } else if (binding instanceof ProblemReferenceBinding) {
  66                         // tolerate some error cases
  67                         if (binding.problemId() == ProblemReasons.NotVisible){
  68                                 throw new SelectionNodeFound(binding);
  69                         }
  70                         scope.problemReporter().invalidType(this, (TypeBinding) binding);
  71                 } else {
  72                         scope.problemReporter().unresolvableReference(this, binding);
  73                 }
  74                 throw new SelectionNodeFound();
  75         }
  76         throw new SelectionNodeFound(binding);
  77 }
  78 public String toStringExpression() {
  79
  80         StringBuffer buffer = new StringBuffer("<SelectOnName:"); //$NON-NLS-1$
  81         for (int i = 0, length = tokens.length; i < length; i++) {
  82                 buffer.append(tokens[i]);
  83                 if (i != length - 1)
  84                         buffer.append("."); //$NON-NLS-1$
  85         }
  86         buffer.append(">"); //$NON-NLS-1$
  87         return buffer.toString();
  88 }
  89 }