JSR

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.BranchInstruction

org.apache.bcel.generic.JsrInstruction

org.apache.bcel.generic.JSR

All Implemented Interfaces:: Cloneable, InstructionTargeter, StackProducer, TypedInstruction, UnconditionalBranch, VariableLengthInstruction

public class JSR extends JsrInstruction implements VariableLengthInstruction

JSR - Jump to subroutine

Field Summary

Fields inherited from class org.apache.bcel.generic.BranchInstruction
index, position, target

Fields inherited from class org.apache.bcel.generic.Instruction
length, opcode
Constructor Summary

Constructors

Constructor

Description

JSR(InstructionHandle target)
Method Summary

Modifier and Type

Method

Description

void

accept(Visitor v)

Call corresponding visitor method(s).

void

dump(DataOutputStream out)

Dump instruction as byte code to stream out.

protected int

updatePosition(int offset, int max_offset)

Called by InstructionList.setPositions when setting the position for every instruction.

Methods inherited from class org.apache.bcel.generic.JsrInstruction
getType, physicalSuccessor

Methods inherited from class org.apache.bcel.generic.BranchInstruction
containsTarget, getIndex, getPosition, getTarget, getTargetOffset, getTargetOffset, initFromFile, setIndex, setPosition, setTarget, toString, updateTarget

Methods inherited from class org.apache.bcel.generic.Instruction
consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, toString, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.bcel.generic.StackProducer
produceStack

Constructor Details
- JSR
  
  public JSR(InstructionHandle target)
Method Details
- dump
  
  public void dump(DataOutputStream out) throws IOException
  
  Dump instruction as byte code to stream out.
  
  Overrides:
  
  dump in class BranchInstruction
  
  Parameters:
  
  out - Output stream
  
  Throws:
  
  IOException
- updatePosition
  
  protected int updatePosition(int offset, int max_offset)
  
  Description copied from class: BranchInstruction
  
  Called by InstructionList.setPositions when setting the position for every instruction. In the presence of variable length instructions `setPositions' performs multiple passes over the instruction list to calculate the correct (byte) positions and offsets by calling this function.
  
  Overrides:
  
  updatePosition in class BranchInstruction
  
  Parameters:
  
  offset - additional offset caused by preceding (variable length) instructions
  
  max_offset - the maximum offset that may be caused by these instructions
  
  Returns:
  
  additional offset caused by possible change of this instruction's length
- accept
  
  public void accept(Visitor v)
  
  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.
  
  Specified by:
  
  accept in class Instruction
  
  Parameters:
  
  v - Visitor object