Saagar Jha > On Jan 29, 2018, at 13:25, Quincey Morris > <quinceymor...@rivergatesoftware.com> wrote: > > On Jan 29, 2018, at 12:42 , Eric E. Dolecki <edole...@gmail.com> wrote: >> >> So this would do it? > > I would strongly recommend using JSONDecoder instead of JSONSerialization. > The errors JSONDecoder throws are AFAIK more detailed than JSONSerialization, > and will tell you the exact location in the string of any error you find.
Uhh…JSONDecoder swallows all of JSONSerialization’s errors and wraps it into its own <https://github.com/apple/swift/blob/e5fdc0955ce662bd929c7e1706d4a1f1d0f5d397/stdlib/public/SDK/Foundation/JSONEncoder.swift#L1097>. I’m not sure this counts as “more detailed”. > > Also, FWIW, I beg you not to use this pattern (if you actually do, outside of > this sample fragment): > >> let jsonData = jsonString.data(using: String.Encoding.utf8) >> … >> _ = try JSONSerialization.jsonObject(with: jsonData!) > > > but do this instead: > >> let jsonData = jsonString.data(using: String.Encoding.utf8)! >> … >> _ = try JSONSerialization.jsonObject(with: jsonData) > > > That is, don’t let optionals “escape” from the place where they first appear. > If, in real code, you’re going to make the string decoding failure a handled > error too, then this would of course become: > >> if let jsonData = jsonString.data(using: String.Encoding.utf8) { >> … >> … >> _ = try JSONSerialization.jsonObject(with: jsonData) > > > where the optional still doesn’t escape from its point of appearance. > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/saagar%40saagarjha.com > > This email sent to saa...@saagarjha.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
