Hey, is there a way to call an extension method wi...
# announcementsa
aerb
12/29/2017, 10:41 PMHey, is there a way to call an extension method with appropriate namespace, as you would with a static method?
Basically to deal with name conflicts?
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damian
12/29/2017, 10:42 PMhow do you imagine it to be?
damian
12/29/2017, 10:43 PMextension functions should already be in their respective namespace (extending the class)
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aerb
12/29/2017, 10:45 PMyeah, it's kind of a weird question. This would be to resolve an extension function conflict due to subclassing.
aerb
12/29/2017, 10:45 PMIt's a weird scenario though that maybe indicates something is wrong.
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damian
12/29/2017, 10:46 PMcan you post an example?
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aerb
12/29/2017, 10:46 PMI wanted to write and extension to a Json base base class which implicitely casts to a JsonArray, and then maps the values.
aerb
12/29/2017, 10:47 PM Copy code
inline fun <T> JsonElement?.map(transform: (JsonElement) -> T): List<T> =
(this as JsonArray).map(transform)aerb
12/29/2017, 10:47 PMJsonArray implements list, which is what I want to use, but it just ends up being recursive.
aerb
12/29/2017, 10:48 PM Copy code
inline fun <T> JsonElement?.map(transform: (JsonElement) -> T): List<T> =
(this as JsonArray as Iterable<JsonElement>).map(transform)aerb
12/29/2017, 10:48 PMThat works, but seems a bit weird.
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araqnid
12/29/2017, 10:49 PMyou might as well take out the
as JsonArraya
aerb
12/29/2017, 10:50 PMyeah, I can I can do that. It gives a casting warning, which is the only reason I was doing the two casts, but I guess that doesn't really matter.
aerb
12/29/2017, 10:51 PMI guess I was hoping for a
.map@kotlin.collections(transform)a
araqnid
12/29/2017, 10:51 PMtbh I’d be more inclined to have a separate method to cast it to an array, as that can fail, e.g.
JsonElement?.asArray() = this as JsonArrayaraqnid
12/29/2017, 10:52 PMI understand what you mean, but I haven’t seen any way of doing that
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aerb
12/29/2017, 10:52 PMyeah, not a big deal, but figured i'd check. Thanks.