Given that the format should be mandatory if the file variable exists, I think that it makes sense for all terms to be mandatory: location (already was), file, format, address. The only case when address could be omitted was if all of the data was undefined (e.g, an entire aggregated array of missing data), which is pretty unlikely.
Making all four terms mandatory is much cleaner, I think.
Given that the
formatshould be mandatory if thefilevariable exists, I think that it makes sense for all terms to be mandatory:location(already was),file,format,address. The only case whenaddresscould be omitted was if all of the data was undefined (e.g, an entire aggregated array of missing data), which is pretty unlikely.Making all four terms mandatory is much cleaner, I think.