/** The last {@link Instruction} for which this local is in scope. */
public Instruction getEnd() {
if (_end != null) return _end;
int idx = _target.getByteIndex() + _length;
Instruction end = getCode().getInstruction(idx);
if (end != null && (end.prev instanceof Instruction)) {
return (Instruction) end.prev;
}
return getCode().getLastInstruction();
}
/** Set the index into the code byte array at which this local starts. */
public void setStartPc(int startPc) {
_target.setByteIndex(startPc);
}
/**
* Set the {@link Instruction} marking the beginning this local. The instruction must already be a
* part of the method. WARNING: if this instruction is deleted, the results are undefined.
*/
public void setStart(Instruction instruction) {
_target.setTargetInstruction(instruction);
}
/** Return the instruction marking the beginning of this local. */
public Instruction getStart() {
return _target.getTargetInstruction();
}
/** Return the index into the code byte array at which this local starts. */
public int getStartPc() {
return _target.getByteIndex();
}
public void replaceTarget(Instruction oldTarget, Instruction newTarget) {
_target.replaceTarget(oldTarget, newTarget);
if (getEnd() == oldTarget) setEnd(newTarget);
}
public void updateTargets() {
_target.updateTargets();
_end = getEnd();
}
/** Get the number of bytes for which this local has a value in the code byte array. */
public int getLength() {
if (_end != null) return _end.getByteIndex() + _end.getLength() - _target.getByteIndex();
return _length;
}