Use the elvis operator a primary constructor and keep the sa kotlinlang #getting-started

Use the elvis operator, a primary constructor and ...

karelpeeters

06/04/2018, 8:37 AM

Use the elvis operator, a primary constructor and keep the same name:

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enum class Direction(opposite: Direction? = null) {
    NORTH, SOUTH(NORTH), EAST, WEST(EAST), START, END;
    val opposite = opposite ?: this
}