net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/codeassist/complete/CompletionOnMessageSend.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.complete;
  12
  13 /*
  14  * Completion node build by the parser in any case it was intending to
  15  * reduce a message send containing the cursor.
  16  * e.g.
  17  *
  18  *      class X {
  19  *    void foo() {
  20  *      this.bar(1, 2, [cursor]
  21  *    }
  22  *  }
  23  *
  24  *      ---> class X {
  25  *         void foo() {
  26  *           <CompleteOnMessageSend:this.bar(1, 2)>
  27  *         }
  28  *       }
  29  *
  30  * The source range is always of length 0.
  31  * The arguments of the message send are all the arguments defined
  32  * before the cursor.
  33  */
  34
  35 import net.sourceforge.phpdt.internal.compiler.ast.MessageSend;
  36 import net.sourceforge.phpdt.internal.compiler.ast.ThisReference;
  37 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  38 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  39
  40 public class CompletionOnMessageSend extends MessageSend {
  41
  42         public TypeBinding resolveType(BlockScope scope) {
  43                 if (receiver == ThisReference.ThisImplicit)
  44                         throw new CompletionNodeFound(this, null, scope);
  45
  46                 TypeBinding receiverType = receiver.resolveType(scope);
  47                 if (receiverType == null || receiverType.isBaseType())
  48                         throw new CompletionNodeFound();
  49
  50                 if (receiverType.isArrayType())
  51                         receiverType = scope.getJavaLangObject();
  52                 throw new CompletionNodeFound(this, receiverType, scope);
  53         }
  54
  55         public String toStringExpression() {
  56
  57                 String s = "<CompleteOnMessageSend:"; //$NON-NLS-1$
  58                 if (receiver != ThisReference.ThisImplicit)
  59                         s = s + receiver.toStringExpression() + "."; //$NON-NLS-1$
  60                 s = s + new String(selector) + "("; //$NON-NLS-1$
  61                 if (arguments != null) {
  62                         for (int i = 0; i < arguments.length; i++) {
  63                                 s += arguments[i].toStringExpression();
  64                                 if (i != arguments.length - 1) {
  65                                         s += ", "; //$NON-NLS-1$
  66                                 }
  67                         };
  68                 }
  69                 s = s + ")>"; //$NON-NLS-1$
  70                 return s;
  71         }
  72 }