Abacus/core/src/main/kotlin/org/nwapw/abacus/number/promotion/PromotionFunction.kt

21 lines
550 B
Kotlin

package org.nwapw.abacus.number.promotion
import org.nwapw.abacus.number.NumberInterface
/**
* Function that is used to promote a number from one type to another.
*
* A promotion function is used in the promotion system as a mean to
* actually "travel" down the promotion path.
*/
interface PromotionFunction {
/**
* Promotes the given [number] into another type.
* @param number the number to promote from.
* @return the new number with the same value.
*/
fun promote(number: NumberInterface): NumberInterface
}