net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/codeassist/select/SelectionOnQualifiedAllocationExpression.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 an allocation expression containing the cursor.
  16  * If the allocation expression is not qualified, the enclosingInstance field
  17  * is null.
  18  * e.g.
  19  *
  20  *      class X {
  21  *    void foo() {
  22  *      new [start]Bar[end](1, 2)
  23  *    }
  24  *  }
  25  *
  26  *      ---> class X {
  27  *         void foo() {
  28  *           <SelectOnAllocationExpression:new Bar(1, 2)>
  29  *         }
  30  *       }
  31  *
  32  */
  33
  34 import net.sourceforge.phpdt.internal.compiler.ast.AnonymousLocalTypeDeclaration;
  35 import net.sourceforge.phpdt.internal.compiler.ast.ConstructorDeclaration;
  36 import net.sourceforge.phpdt.internal.compiler.ast.QualifiedAllocationExpression;
  37 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  38 import net.sourceforge.phpdt.internal.compiler.lookup.ProblemReasons;
  39 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  40
  41 public class SelectionOnQualifiedAllocationExpression extends QualifiedAllocationExpression {
  42 public SelectionOnQualifiedAllocationExpression() {
  43 }
  44 public SelectionOnQualifiedAllocationExpression(AnonymousLocalTypeDeclaration anonymous) {
  45         anonymousType = anonymous ;
  46 }
  47 public TypeBinding resolveType(BlockScope scope) {
  48         super.resolveType(scope);
  49
  50         // tolerate some error cases
  51         if (binding == null ||
  52                         !(binding.isValidBinding() ||
  53                                 binding.problemId() == ProblemReasons.NotVisible))
  54                 throw new SelectionNodeFound();
  55         if (anonymousType == null)
  56                 throw new SelectionNodeFound(binding);
  57
  58         // if selecting a type for an anonymous type creation, we have to
  59         // find its target super constructor (if extending a class) or its target
  60         // super interface (if extending an interface)
  61         if (anonymousType.binding.superInterfaces == NoSuperInterfaces) {
  62                 // find the constructor binding inside the super constructor call
  63                 ConstructorDeclaration constructor = (ConstructorDeclaration) anonymousType.declarationOf(binding);
  64                 throw new SelectionNodeFound(constructor.constructorCall.binding);
  65         } else {
  66                 // open on the only superinterface
  67                 throw new SelectionNodeFound(anonymousType.binding.superInterfaces[0]);
  68         }
  69 }
  70 public String toStringExpression(int tab) {
  71         return
  72                 ((this.enclosingInstance == null) ?
  73                         "<SelectOnAllocationExpression:" :  //$NON-NLS-1$
  74                         "<SelectOnQualifiedAllocationExpression:") +  //$NON-NLS-1$
  75                 super.toStringExpression(tab) + ">"; //$NON-NLS-1$
  76 }
  77 }