NotNullExtensions.kt

/**
 * Execute a lambda with two verified non-null values
 */
inline fun <T : Any, U : Any, W : Any> Pair<T?, U?>.bothNotNull(block: (one: T, two: U) -> W) {
    first?.let { one ->
        second?.let { two ->
            block(one, two)
        }
    }
}

/**
 * Execute a lambda with three verified non-null values
 */
inline fun <T : Any, U : Any, V : Any, W : Any> Triple<T?, U?, V?>.allNotNull(block: (one: T, two: U, three: V) -> W) {
    first?.let { one ->
        second?.let { two ->
            third?.let { three ->
                block(one, two, three)
            }
        }
    }
}