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#announcements
- j
jw
08/04/2017, 1:16 AMgood API design still needs to be a factor - d
dumptruckman
08/04/2017, 1:17 AMwell it's like, "true means operation was successful, null means it wasn't" - d
dumptruckman
08/04/2017, 1:17 AMi guess i should just be throwing an exception.. - j
jw
08/04/2017, 1:18 AMor false? - d
dumptruckman
08/04/2017, 1:18 AMwell i was considering null so i can use the elvis operator - d
dumptruckman
08/04/2017, 1:18 AMfor a more succinct looking code - a
agomez
08/04/2017, 1:19 AMyou can also return something likeEither<Nothing, Void> - d
dumptruckman
08/04/2017, 1:20 AMthing?.copyThing(name) ?: throw Exception() - t
timp
08/04/2017, 1:21 AMOr have it take a
as its last param so you can do() -> Rthing?.copyThing(name) { throw Exception() } - a
agomez
08/04/2017, 1:21 AM
may returncopyThing
or throw the exception inside its codeVoid - d
dumptruckman
08/04/2017, 1:21 AMoh - d
dumptruckman
08/04/2017, 1:21 AMTim, that's not a bad idea - t
timp
08/04/2017, 1:23 AMYeah its probably a bit non-standard to execute a “block” on failure however but thats probably not a big deal - d
dumptruckman
08/04/2017, 1:24 AMIt definitely makes the signature look weird.. - k
kirillrakhman
08/04/2017, 9:09 AM@dumptruckman why not return regular
and writeBooleanif (thing?.copyThing(name) != true) throw Exception()➕ 1 - r
ribesg
08/04/2017, 10:02 AMIf I have a data class with a non-nullable String field which is actually null, would having a line with just myObject.theField throw an exception or would that instruction get removed somehow because it does nothing? - r
ribesg
08/04/2017, 10:02 AMJust to be sure - h
horse_badorties
08/04/2017, 10:05 AMa non-nullable field can never be null, that's the whole point of having non-nullable fields - r
ribesg
08/04/2017, 10:09 AM@horse_badorties of course it can - r
ribesg
08/04/2017, 10:10 AMThis isn't black magic - r
ribesg
08/04/2017, 10:10 AMKotlin runs on the JVM - r
ribesg
08/04/2017, 10:10 AMA field can always be null - r
ribesg
08/04/2017, 10:10 AMAnd after some tests the answer is no - r
ribesg
08/04/2017, 10:10 AMA line just getting the field would not throw an exception unless the result is used - r
ribesg
08/04/2017, 10:11 AMWhich is wrong to me but whatever. - h
horse_badorties
08/04/2017, 10:11 AMcan you show some simple example code? - r
ribesg
08/04/2017, 10:12 AMDoesn't throw an exception,
is of typetheField
and has valueStringnull - r
ribesg
08/04/2017, 10:13 AMIt should throw an exception - r
rayt
08/04/2017, 10:21 AMI tried to create a map between model class & AbstractDao class, but the compiler tells me type mismatch, can anyone take a look and help me, Thanks - j
Jemo
08/04/2017, 1:06 PM@User uploaded a file: Untitled