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package com.sun.org.apache.bcel.internal.generic;

import java.io.DataOutputStream;
import java.io.IOException;

JSR - Jump to subroutine
Version:$Id: JSR.java 1749603 2016-06-21 20:50:19Z ggregory $
/** * JSR - Jump to subroutine * * @version $Id: JSR.java 1749603 2016-06-21 20:50:19Z ggregory $ */
public class JSR extends JsrInstruction implements VariableLengthInstruction {
Empty constructor needed for the Class.newInstance() statement in Instruction.readInstruction(). Not to be used otherwise.
/** * Empty constructor needed for the Class.newInstance() statement in * Instruction.readInstruction(). Not to be used otherwise. */
JSR() { } public JSR(final InstructionHandle target) { super(com.sun.org.apache.bcel.internal.Const.JSR, target); }
Dump instruction as byte code to stream out.
Params:
  • out – Output stream
/** * Dump instruction as byte code to stream out. * @param out Output stream */
@Override public void dump( final DataOutputStream out ) throws IOException { super.setIndex(getTargetOffset()); if (super.getOpcode() == com.sun.org.apache.bcel.internal.Const.JSR) { super.dump(out); } else { // JSR_W super.setIndex(getTargetOffset()); out.writeByte(super.getOpcode()); out.writeInt(super.getIndex()); } } @Override protected int updatePosition( final int offset, final int max_offset ) { final int i = getTargetOffset(); // Depending on old position value setPosition(getPosition() + offset); // Position may be shifted by preceding expansions if (Math.abs(i) >= (Short.MAX_VALUE - max_offset)) { // to large for short (estimate) super.setOpcode(com.sun.org.apache.bcel.internal.Const.JSR_W); final short old_length = (short) super.getLength(); super.setLength(5); return super.getLength() - old_length; } return 0; }
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.
Params:
  • v – Visitor object
/** * 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( final Visitor v ) { v.visitStackProducer(this); v.visitVariableLengthInstruction(this); v.visitBranchInstruction(this); v.visitJsrInstruction(this); v.visitJSR(this); } }