fix: immutability

Author: TheFruxz

src/main/kotlin/de/fruxz/sparkle/framework/infrastructure/command/completion/content/CompletionAsset.kt

@@ -54,8 +54,8 @@ data class CompletionAsset<T>(
 	override val identityKey: Key,
 	val refreshing: Boolean,
 	val supportedInputType: List<InterchangeStructureInputRestriction<*>> = listOf(InterchangeStructureInputRestriction.STRING),
-	var check: (CompletionContext.() -> Boolean)? = null,
-	var transformer: (CompletionContext.() -> T?)? = null,
+	val check: (CompletionContext.() -> Boolean)? = null,
+	val transformer: (CompletionContext.() -> T?)? = null,
 	val generator: CompletionContext.(CompletionAsset<T>) -> Collection<String>,
 ) : KeyedIdentifiable<CompletionAsset<T>> {
 
@@ -74,13 +74,9 @@ data class CompletionAsset<T>(
 		}
 	}
 
-	fun doCheck(check: (CompletionContext.() -> Boolean)?) = apply {
-		this.check = check
-	}
+	fun doCheck(check: (CompletionContext.() -> Boolean)?) = copy(check = check)
 
-	fun transformer(transformer: (CompletionContext.() -> T?)?) = apply {
-		this.transformer = transformer
-	}
+	fun transformer(transformer: (CompletionContext.() -> T?)?) = copy(transformer = transformer)
 
 	companion object {
 

src/main/kotlin/de/fruxz/sparkle/framework/infrastructure/command/live/InterchangeAccess.kt

@@ -101,7 +101,7 @@ data class InterchangeAccess<EXECUTOR : InterchangeExecutor>(
 	fun <T : Any> getInput(slot: Int = inputLength - 1, fromAsset: CompletionAsset<T>): T {
 		if (fromAsset.transformer == null) throw IllegalArgumentException("Asset '${fromAsset.identity}' provides no transformer!")
 
-		return getInput(slot).let { input -> fromAsset.transformer?.invoke(
+		return getInput(slot).let { input -> fromAsset.transformer.invoke(
 			CompletionAsset.CompletionContext(
 			executor = executor,
 			fullLineInput = parameters,