/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.bcel.generic;
import org.apache.bcel.Constants;
import org.apache.bcel.ExceptionConstants;
/**
* PUTFIELD - Put field in object
* <PRE>Stack: ..., objectref, value -> ...</PRE>
* OR
* <PRE>Stack: ..., objectref, value.word1, value.word2 -> ...</PRE>
*
* @version $Id: PUTFIELD.java 1600634 2014-06-05 12:32:51Z ebourg $
* @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
*/
public class PUTFIELD extends FieldInstruction implements PopInstruction, ExceptionThrower {
private static final long serialVersionUID = -3931392044558815011L;
/**
* Empty constructor needed for the Class.newInstance() statement in
* Instruction.readInstruction(). Not to be used otherwise.
*/
PUTFIELD() {
}
public PUTFIELD(int index) {
super(Constants.PUTFIELD, index);
}
@Override
public int consumeStack( ConstantPoolGen cpg ) {
return getFieldSize(cpg) + 1;
}
public Class<?>[] getExceptions() {
Class<?>[] cs = new Class[2 + 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 + 1] = ExceptionConstants.INCOMPATIBLE_CLASS_CHANGE_ERROR;
cs[ExceptionConstants.EXCS_FIELD_AND_METHOD_RESOLUTION.length] = ExceptionConstants.NULL_POINTER_EXCEPTION;
return cs;
}
/**
* 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
*/
@Override
public void accept( Visitor v ) {
v.visitExceptionThrower(this);
v.visitStackConsumer(this);
v.visitPopInstruction(this);
v.visitTypedInstruction(this);
v.visitLoadClass(this);
v.visitCPInstruction(this);
v.visitNameSignatureInstruction(this);
v.visitFieldOrMethod(this);
v.visitFieldInstruction(this);
v.visitPUTFIELD(this);
}
}