Added more private.

Author: sraaphorst

src/main/kotlin/day05/day05.kt

@@ -7,8 +7,8 @@ import common.day
 import common.collectionops.middle
 import common.readInput
 
-typealias OrderingRules = Map<Int, Set<Int>>
-typealias Updates = List<Int>
+private typealias OrderingRules = Map<Int, Set<Int>>
+private typealias Updates = List<Int>
 
 /**
  * Parse the violation rules into a map where:

src/main/kotlin/day06/day06.kt

@@ -13,7 +13,7 @@ import common.readInput
 /**
  * The direction that the guard is facing and moves in.
  */
-enum class Direction(val delta: IntPos2D) {
+private enum class Direction(val delta: IntPos2D) {
     NORTH(IntPos2D(-1, 0)),
     SOUTH(IntPos2D(1, 0)),
     EAST(IntPos2D(0, 1)),
@@ -27,20 +27,20 @@ enum class Direction(val delta: IntPos2D) {
     }
 }
 
-typealias Orientation = Pair<Direction, IntPos2D>
+private typealias Orientation = Pair<Direction, IntPos2D>
 
-data class MapGrid(val rows: Int,
-                   val cols: Int,
-                   val boundaries: Set<IntPos2D>) {
+private data class MapGrid(val rows: Int,
+                           val cols: Int,
+                           val boundaries: Set<IntPos2D>) {
     fun isBoundary(point: IntPos2D): Boolean =
         point in boundaries
 
     fun isInBounds(point: IntPos2D): Boolean =
         point.first in 0 until rows && point.second in 0 until cols
 }
 
-data class Guard(val startPosition: IntPos2D,
-                 val map: MapGrid) {
+private data class Guard(val startPosition: IntPos2D,
+                         val map: MapGrid) {
     /**
      * Simulate the guard's path and return either:
      * 1. A set of visited points if it escapes.
@@ -75,7 +75,7 @@ data class Guard(val startPosition: IntPos2D,
 /**
  * Parse the input into a Guard and MapGrid.
  */
-fun parse(input: String): Guard {
+private fun parse(input: String): Guard {
     var startPosition: IntPos2D? = null
     val barriers = mutableSetOf<IntPos2D>()
 

src/main/kotlin/day08/day08.kt

@@ -7,10 +7,10 @@ import common.day
 import common.intpos2d.*
 import common.readInput
 
-typealias Frequency = Char
-typealias AntennaMap = Map<Frequency, Set<IntPos2D>>
+private typealias Frequency = Char
+private typealias AntennaMap = Map<Frequency, Set<IntPos2D>>
 
-data class Grid(val height: Int, val width: Int, val antennae: AntennaMap) {
+private data class Grid(val height: Int, val width: Int, val antennae: AntennaMap) {
 
     private fun inBounds(pos: IntPos2D): Boolean =
         pos.first in 0 until height && pos.second in 0 until width

src/test/kotlin/day08/day08.kt

@@ -4,7 +4,6 @@
 package day08
 
 import org.junit.jupiter.api.Test
-import java.math.BigInteger
 import kotlin.test.assertEquals
 
 class Day08Test {