Should I extend java.math.Biginteger and alias tha...
# multiplatformr
Robert
12/26/2018, 8:57 PMShould I extend java.math.Biginteger and alias that? Edit; hmm that doesnt seem to work out, return types etc are different class because of extending. Don't see how I add this companion object values to the type-alias...
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Dico
12/27/2018, 9:52 AMYou have to remove the expected declaration for NEGATIVE_ONE to use the typealias
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Robert
12/27/2018, 5:46 PMBut if I want to add it? I guess I would not have to do the whole Java implementation of BigInteger myself? Should be some way to just extend it right?
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Dico
12/27/2018, 8:24 PMThis is something I've wondered as well.
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Robert
12/27/2018, 8:45 PMAh, I see. Hopefully someone comes around who knows. Otherwise I should just open an issue with YouTrack I guess?
Robert
12/27/2018, 10:28 PMIf only this was possible, I would be very close
Copy code
actual typealias BigInteger = java.math.BigInteger
actual val BigInteger.Companion.NEGATIVE_ONE: BigInteger = BigInteger("-1")d
Dico
12/28/2018, 12:46 AMI suggest that you define them as such in common code.
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Robert
12/28/2018, 5:45 AMI don't have Java
java.math.BigIntegerjava.math.BigIntegerd
Dico
12/28/2018, 2:57 PMWell, there is a workaround, it's right in front of you, it's just a little bit ugly
Dico
12/28/2018, 2:58 PMFor example you can move NEGATIVE_ONE to a top level extension property and make it expect if you have platform specific implementation
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Robert
12/28/2018, 5:25 PMHow would that look like? I told I tried everything.
I'll put it on GitHub later.
Robert
12/28/2018, 5:42 PMDo you mean in the expected class or in the actual (jvm) "class"/typealias. I tried all these variants in the jvm file:
https://gist.github.com/RdeWilde/3c76bd09360132dd611dc23cd21b2c2c but ofc none matches the compagnion object (which is unavaible for the extension). I put it in the companion object for efficienty
Robert
12/28/2018, 6:27 PMFor now I added this
expect inline fun Int.toBigInteger() : BigInteger-1.toBigInteger()16 Views