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INVOKESPECIAL.java

package de.fub.bytecode.generic;

import de.fub.bytecode.Constants;
import de.fub.bytecode.ExceptionConstants;

/** 
 * INVOKESPECIAL - Invoke instance method; special handling for superclass, private
 * and instance initialization method invocations
 *
 * <PRE>Stack: ..., objectref, [arg1, [arg2 ...]] -&gt; ...</PRE>
 *
 * @version $Id: INVOKESPECIAL.java,v 1.1.1.1 2002/01/24 03:41:40 pserver Exp $
 * @author  <A HREF="http://www.inf.fu-berlin.de/~dahm">M. Dahm</A>
 */
public class INVOKESPECIAL extends InvokeInstruction {
  /**
   * Empty constructor needed for the Class.newInstance() statement in
   * Instruction.readInstruction(). Not to be used otherwise.
   */
  INVOKESPECIAL() {}  
  public INVOKESPECIAL(int index) {
    super(Constants.INVOKESPECIAL, index);
  }  
  /**
   * Call corresponding visitor method(s). The order is:
   * Call visitor methods of implemented interfaces first, then
   * call methods according to the class hierarchy in descending order,
   * i.e., the most specific visitXXX() call comes last.
   *
   * @param v Visitor object
   */
  public void accept(Visitor v) {
    v.visitExceptionThrower(this);
    v.visitTypedInstruction(this);
    v.visitStackConsumer(this);
    v.visitStackProducer(this);
    v.visitLoadClass(this);
    v.visitCPInstruction(this);
    v.visitFieldOrMethod(this);
    v.visitInvokeInstruction(this);
    v.visitINVOKESPECIAL(this);
  }  
  public Class[] getExceptions() {
    Class[] cs = new Class[4 + ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length];

    System.arraycopy(ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION, 0,
             cs, 0, ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length);

    cs[ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length+3] = ExceptionConstants.UNSATISFIED_LINK_ERROR;
    cs[ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length+2] = ExceptionConstants.ABSTRACT_METHOD_ERROR;
    cs[ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length+1] = ExceptionConstants.INCOMPATIBLE_CLASS_CHANGE_ERROR;
    cs[ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length]   = ExceptionConstants.NULL_POINTER_EXCEPTION;

    return cs;
  }  
}

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