Why the result of my

when

statement gets implicitly casted to Any? It's annoying...

Gotcha, add is Int here

a + b

has type

Int

, while

Short.MIN_VALUE

has type

Short

.

☺️

Code: I'm doing a saturating

short

arithmetic.

when {
                    a == 0.toShort() || b == 0.toShort() || (a > 0) xor (b > 0) -> a+b
                    x > 0 -> if (Short.MAX_VALUE - a < b) Short.MAX_VALUE else a + b
                    else -> if (Short.MIN_VALUE - a < b) Short.MIN_VALUE else a + b
                }.toShort()

1 reply also

xor

is logically equivalent to

!=

Is there a way to extract a boxed variable’s intended type even when it’s current value is null?

fun Foo(value: String?) {
    value?.trim() ?: //do something with the String type here
}

What do you want to do with it? You want to access

String::class

there?

Well, it’s a bit of a contrived example, what I’m really trying to do is wipe the Realm database of that type

Yes, I want to access

String::java.class

I suppose maybe this doesn’t illustrate the full issue, here’s the actual code I’m trying to get working:

fun <T : RealmModel> T.clear() {
    Realm.getDefaultInstance().use { ext ->
        ext.executeTransaction { realm ->
            realm.delete(this::class.java)
        }
    }
}

//...

fun addThing(thing: Thing?) {
    thing?.add() ?: thing.clear()
}

Make the function

inline

and use reified generics.

ah, perfect, thanks!

Whats the proper method to comment on KEEP proposals?

Hey guys, it seems that the website is broken. When accessing https://kotlinlang.org/docs/reference/ and attempting to click on one of the items on the left hand side this throws a javascript exception. Anyone have the same issue?

@pdvrieze just wanted to report the same issue

It doesn't work on my phone.

It works fine for me

Interesting, @pdvrieze do you happen to use Firefox? It doesn't work there for me but it does work in eg. Chrome.

Specifically Firefox mobile 54.0.1.

Wow refreshing the page fixed it. I assume that was a really quick fix @roman.belov?

@karelpeeters Works for me again as well (using Chrome, I din't even restart chrome)

@sannysanoff Just always take, it stops when the string runs out.

@karelpeeters @pdvrieze for me as well (using vivaldi, effectively chrome)

@karelpeeters i don't need dots if string is short.

@sannysanoff `val t = (stringExpression).let { s -> if (s.length>255) s.take(252)+"..." else s }

Paul, missed this one, thanks!

(wrote my own) 😉

If you're already depending on Commons Lang you can use their abbreviate method, don't remember what it's called exactly.