edu.rice.cs.cunit.classFile.code.instructions
Class WideInstruction

java.lang.Object
  edu.rice.cs.cunit.classFile.code.instructions.AInstruction
      edu.rice.cs.cunit.classFile.code.instructions.GenericInstruction
          edu.rice.cs.cunit.classFile.code.instructions.WideInstruction

public class WideInstruction
extends GenericInstruction

Wide Java instruction.

Author:

Mathias Ricken

Field Summary

Fields inherited from class edu.rice.cs.cunit.classFile.code.instructions.GenericInstruction

_code

Constructor Summary

WideInstruction(byte[] code)
Constructor.

WideInstruction(byte[] bytecode, int pc, int paddingPC, LineNumberTable lnt)
Make a new generic instruction from the bytecode stating at pc, padded using paddingPC, and use the line number table for branches.

Method Summary

int	getBytecodeLength(int pc) Get the length bytecode for this instruction, padded for the specified program counter value.
byte	getOpcode() Get the opcode of this instruction.
int	hashCode() Return hash code.
void	setBranchTargets(int[] branchTargets) Set the branch target indices.
java.lang.String	toString() Return instruction in human-readable form.

Methods inherited from class edu.rice.cs.cunit.classFile.code.instructions.GenericInstruction

equals, getBranchTargets, getBytecode, getBytecode

Methods inherited from class edu.rice.cs.cunit.classFile.code.instructions.AInstruction

getCorrespondingLoad, getCorrespondingStore, makeInstruction, toStringVerbose

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

WideInstruction

public WideInstruction(byte[] code)

Constructor.

Parameters:

code - bytecode for generic instruction, excluding the WIDE opcode

WideInstruction

public WideInstruction(byte[] bytecode,
                       int pc,
                       int paddingPC,
                       LineNumberTable lnt)

Make a new generic instruction from the bytecode stating at pc, padded using paddingPC, and use the line number table for branches.

Parameters:

bytecode - bytecode

pc - starting index in bytecode

paddingPC - PC for padding

lnt - line number table for branches

Method Detail

getOpcode

public byte getOpcode()

Get the opcode of this instruction.

Overrides:

getOpcode in class GenericInstruction

Returns:

opcode

getBytecodeLength

public int getBytecodeLength(int pc)

Get the length bytecode for this instruction, padded for the specified program counter value.

Overrides:

getBytecodeLength in class GenericInstruction

Parameters:

pc - PC for padding

Returns:

bytecode length

hashCode

public int hashCode()

Return hash code.

Overrides:

hashCode in class GenericInstruction

Returns:

hash code

setBranchTargets

public void setBranchTargets(int[] branchTargets)

Set the branch target indices.

Overrides:

setBranchTargets in class GenericInstruction

Parameters:

branchTargets - array of target indices

toString

public java.lang.String toString()

Return instruction in human-readable form.

Overrides:

toString in class GenericInstruction

Returns:

string representation