arrow-core/arrow.core/EmptyValue

EmptyValue

object EmptyValue(source)

This is a work-around for having nested nulls in generic code. This allows for writing faster generic code instead of using Option. This is only used as an optimisation technique in low-level code, always prefer to use Option in actual business code when needed in generic code.

Functions

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inline fun <T> combine(first: Any?, second: T, combine: (T, T) -> T): T
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inline fun <T, R> fold(value: Any?, ifEmpty: () -> R, ifNotEmpty: (T) -> R): R
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inline fun <A> unbox(value: Any?): A