Channels
#announcements
- o
Olekss
10/02/2017, 12:49 PMasync is not one, you need to run .await IMHO - p
pokkeli
10/02/2017, 2:57 PMActually, it seems to happen with non-object classes too. - j
jcogilvie
10/02/2017, 3:13 PMis it possible to make the setter of a delegate private? i.e., a delegate whose behavior is similar to this:Copy codevar foo: Int get() = something private set(value) { something = value } - j
jcogilvie
10/02/2017, 3:14 PM(note: I don't mean a read-only delegate) - r
rwachol
10/02/2017, 3:17 PMuse ``` please➕ 2 - k
kristofdho
10/02/2017, 3:23 PMCopy codevar foo by delegate private set - j
jaguililla
10/02/2017, 3:23 PM@jcogilvie Make it a
instead avalvar - p
Paul Woitaschek
10/02/2017, 3:45 PM@jaguililla That’s not a private setter, that’s no setter 😉 - j
jaguililla
10/02/2017, 3:48 PMSorry.... It is a different thing - b
beholder
10/02/2017, 6:40 PMIt's possible to get reference to Java class setter (
). Is it possible to get reference for Kotlin class setter without reflection library?val s = SomeClass::setSomething - p
pniederw
10/02/2017, 7:08 PM@beholder if it’s not working out-of-the-box, the answer is likely no - b
beholder
10/02/2017, 7:12 PMFound the hard way:Copy code
or even weirder:val property = KotlinClass::someProperty val setter = property::setCopy code
But it by the cost of generation of extra anonymous classval setter = (KotlinClass::someProperty)::set - b
bgoetzmann
10/02/2017, 8:16 PMHi! Is there a way to add a custom node using TornadoFX DSL (something similar to
in GroovyFX, e.g. in this example: https://github.com/groovyfx-project/groovyfx/blob/master/src/site/resources/example/CustomNodeExample.groovy)?node - k
kevinmost
10/02/2017, 8:19 PMtry #tornadofx - b
bgoetzmann
10/02/2017, 8:35 PMIt seems that it's
!wrapper - k
kevinmost
10/02/2017, 9:10 PMno, that's not supported - o
Olekss
10/03/2017, 7:59 AMhow this is different from just callng block ? - c
Czar
10/03/2017, 8:13 AMit can be useful when designing a DSL for example. - o
Olekss
10/03/2017, 8:14 AM??? - c
Czar
10/03/2017, 8:17 AMIf you're asking about standard library one, here's a good explanation: https://lmller.github.io/kotlin-standard-extensions#run - c
Czar
10/03/2017, 8:19 AMBasically this is some generic syntactic sugar to make your code more laconic - j
jmfayard
10/03/2017, 10:44 AMIs there a variant of Closable.use { } that could work on two Closables? I'm using OkIo and it often feels there is an indent too muchCopy codefun base64(file: File) : String { check(file.canRead()) Buffer().use { buffer -> Okio.source(file).use { source -> buffer.writeAll(source) } return buffer.readByteString().base64() } } - m
marstran
10/03/2017, 10:55 AMThis will always execute
though. Your example would not ifOkio.source(file)
returned null.Buffer() - m
marstran
10/03/2017, 11:26 AMThat will not close
ifc2
crashes while it closes.c1 - u
user
10/03/2017, 11:27 AM@Czar commented on @Olekss’s file https://kotlinlang.slack.com/files/U7BP7E2GJ/F7CFHCF9Q/-.txt: you have to try-catch at least c1.close(), because if it throws exception, c2 won't be closed - d
dimsuz
10/03/2017, 11:31 AMHi! In what way the following codeCopy code
is less optimal than following:sealed class Data class StructuredData : Data() data class GenericData(val payload: Int) : Data()Copy code
I often seesealed class Data object StructuredData : Data() data class GenericData(val payload: Int) : Data()
used in these situations, was curious what are the pros of this approach. Tighter bytecode?object - f
felix
10/03/2017, 11:33 AMI think that the first version, using
implies that it must be instantiated.class
, however, is just a singleton which is instantiated once.object - d
dimsuz
10/03/2017, 11:34 AMoh, right. so it's more optimal in the sense that it's less calls to
...new