@Override
	public ProgramLocation getProgramLocation(int row, int col, ListingField bf) {
		ProxyObj<?> proxy = bf.getProxy();
		if (proxy instanceof VariableProxy) {
			VariableProxy variableProxy = (VariableProxy) proxy;
			Variable sv = variableProxy.getObject();
			return new VariableLocFieldLocation(sv.getProgram(), variableProxy.getLocationAddress(),
				sv, col);
		}

		return null;
	}
Returns the string representing the offset.
@param offset the offset to get a string for
@return the offset string
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/field/VariableLocFieldFactory.java