de.fub.bytecode.generic
Class JsrInstruction

java.lang.Object
  |
  +--de.fub.bytecode.generic.Instruction
        |
        +--de.fub.bytecode.generic.BranchInstruction
              |
              +--de.fub.bytecode.generic.JsrInstruction

All Implemented Interfaces:

java.lang.Cloneable, InstructionTargeter, java.io.Serializable, StackProducer, TypedInstruction, UnconditionalBranch

Direct Known Subclasses:

JSR, JSR_W

public abstract class JsrInstruction

extends BranchInstruction

implements UnconditionalBranch, TypedInstruction, StackProducer

Super class for JSR - Jump to subroutine

Version:

$Id: JsrInstruction.java,v 1.12 2001/07/03 08:20:18 dahm Exp $

Author:

M. Dahm

See Also:

Serialized Form

Fields inherited from class de.fub.bytecode.generic.BranchInstruction

index, position, target

Fields inherited from class de.fub.bytecode.generic.Instruction

length, opcode

Method Summary

Type	getType(ConstantPoolGen cp)
InstructionHandle	physicalSuccessor() Returns an InstructionHandle to the physical successor of this JsrInstruction.

Methods inherited from class de.fub.bytecode.generic.BranchInstruction

containsTarget, dump, getIndex, getTarget, getTargetOffset, getTargetOffset, initFromFile, setTarget, toString, updatePosition, updateTarget

Methods inherited from class de.fub.bytecode.generic.Instruction

accept, consumeStack, consumeStack, copy, getLength, getOpcode, getTag, produceStack, produceStack, readInstruction, toString, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.fub.bytecode.generic.StackProducer

produceStack

Method Detail

getType

public Type getType(ConstantPoolGen cp)

Specified by:

getType in interface TypedInstruction

Returns:

return address type

physicalSuccessor

public InstructionHandle physicalSuccessor()

Returns an InstructionHandle to the physical successor of this JsrInstruction. For this method to work, this JsrInstruction object must not be shared between multiple InstructionHandle objects! Formally, there must not be InstructionHandle objects i, j where i != j and i.getInstruction() == this == j.getInstruction().

Returns:

an InstructionHandle to the "next" instruction that will be executed when RETurned from a subroutine.