org.apache.bcel.generic

Class Select

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.BranchInstruction

org.apache.bcel.generic.Select

All Implemented Interfaces:

java.lang.Cloneable, InstructionTargeter, StackConsumer, StackProducer, VariableLengthInstruction

Direct Known Subclasses:

LOOKUPSWITCH, TABLESWITCH

public abstract class Select
extends BranchInstruction
implements VariableLengthInstruction, StackConsumer, StackProducer

Select - Abstract super class for LOOKUPSWITCH and TABLESWITCH instructions.

We use our super's target property as the default target.

See Also:

LOOKUPSWITCH, TABLESWITCH, InstructionList

Method Summary

Modifier and Type	Method and Description
boolean	containsTarget(InstructionHandle ih) Checks whether this targeter targets the specified instruction handle.
void	dump(java.io.DataOutputStream out) Dump instruction as byte code to stream out.
int[]	getIndices()
int[]	getMatchs()
InstructionHandle[]	getTargets()
void	setTarget(int i, InstructionHandle target) Set branch target for `i'th case
java.lang.String	toString(boolean verbose) Long output format: <position in byte code> <name of opcode> "["<opcode number>"]" "("<length of instruction>")" "<"<target instruction>">" "@"<branch target offset>
void	updateTarget(InstructionHandle old_ih, InstructionHandle new_ih) Replaces the target of this targeter from this old handle to the new handle.

Methods inherited from class org.apache.bcel.generic.BranchInstruction

getIndex, getTarget, setTarget

Methods inherited from class org.apache.bcel.generic.Instruction

accept, consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, toString, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.bcel.generic.StackConsumer

consumeStack

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

produceStack

Method Detail

dump

public void dump(java.io.DataOutputStream out)
          throws java.io.IOException

Dump instruction as byte code to stream out.

Overrides:

dump in class BranchInstruction

Parameters:

out - Output stream

Throws:

java.io.IOException

toString

public java.lang.String toString(boolean verbose)

Description copied from class: BranchInstruction

Long output format: <position in byte code> <name of opcode> "["<opcode number>"]" "("<length of instruction>")" "<"<target instruction>">" "@"<branch target offset>

Overrides:

toString in class BranchInstruction

Parameters:

verbose - long/short format switch

Returns:

mnemonic for instruction

setTarget

public void setTarget(int i,
                      InstructionHandle target)

Set branch target for `i'th case

updateTarget

public void updateTarget(InstructionHandle old_ih,
                         InstructionHandle new_ih)

Description copied from interface: InstructionTargeter

Replaces the target of this targeter from this old handle to the new handle.

Specified by:

updateTarget in interface InstructionTargeter

Overrides:

updateTarget in class BranchInstruction

Parameters:

old_ih - old target

new_ih - new target

containsTarget

public boolean containsTarget(InstructionHandle ih)

Description copied from interface: InstructionTargeter

Checks whether this targeter targets the specified instruction handle.

Specified by:

containsTarget in interface InstructionTargeter

Overrides:

containsTarget in class BranchInstruction

Returns:

true, if ih is target of this instruction

getMatchs

public int[] getMatchs()

Returns:

array of match indices

getIndices

public int[] getIndices()

Returns:

array of match target offsets

getTargets

public InstructionHandle[] getTargets()

Returns:

array of match targets