@Override
	public FieldLocation getFieldLocation(ListingField bf, BigInteger index, int fieldNum,
			ProgramLocation programLoc) {
		if (!(programLoc instanceof FieldNameFieldLocation)) {
			return null;
		}
		FieldNameFieldLocation loc = (FieldNameFieldLocation) programLoc;
		if (!hasSamePath(bf, loc)) {
			return null;
		}
		return new FieldLocation(index, fieldNum, 0, loc.getCharOffset());

	}
Constructor
@param model the model that the field belongs to.
@param hlProvider the HightLightStringProvider.
@param displayOptions the Options for display properties.
@param fieldOptions the Options for field specific properties.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/field/FieldNameFieldFactory.java