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

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.ReferenceInstruction

public class ReferenceInstruction
extends GenericInstruction

Instruction containing a reference to the constant pool.

Author:

Mathias

Field Summary

(package private) int

_refSize Size of the reference in bytes.

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

_code

Constructor Summary

ReferenceInstruction(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.

ReferenceInstruction(byte opcode, int constantPoolId)
Constructor.

Method Summary

private void	checkOpcode(byte opcode) Check the opcode to make sure it is a reference instruction.
int	getReference() Get the constant pool id.
void	setReference(int constantPoolId) Set the constant pool id.
java.lang.String	toStringVerbose(ConstantPool cp) Return a verbose string representation.

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

equals, getBranchTargets, getBytecode, getBytecode, getBytecodeLength, getOpcode, hashCode, setBranchTargets, toString

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

getCorrespondingLoad, getCorrespondingStore, makeInstruction

Methods inherited from class java.lang.Object

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

Field Detail

_refSize

int _refSize

Size of the reference in bytes.

Constructor Detail

ReferenceInstruction

public ReferenceInstruction(byte opcode,
                            int constantPoolId)

Constructor.

Parameters:

opcode - invoke opcode

constantPoolId - method id in constant pool

ReferenceInstruction

public ReferenceInstruction(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

checkOpcode

private void checkOpcode(byte opcode)

Check the opcode to make sure it is a reference instruction.

Parameters:

opcode - opcode to check

setReference

public void setReference(int constantPoolId)

Set the constant pool id.

Parameters:

constantPoolId - new constant pool id

getReference

public int getReference()

Get the constant pool id.

Returns:

constant pool id

toStringVerbose

public java.lang.String toStringVerbose(ConstantPool cp)

Return a verbose string representation.

Overrides:

toStringVerbose in class AInstruction

Parameters:

cp - constant pool

Returns:

verbose string representation