Added experimental extensions to switch to androidx.collections durin…

…g mapping

data/src/main/kotlin/fobo66/valiutchik/core/util/ScatterSetExtensions.kt

@@ -0,0 +1,44 @@
+/*
+ *    Copyright 2025 Andrey Mukamolov
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+package fobo66.valiutchik.core.util
+
+import androidx.collection.MutableScatterMap
+import androidx.collection.ScatterMap
+import androidx.collection.ScatterSet
+
+@SinceKotlin("1.3")
+inline fun <K, V> ScatterSet<K>.associateWith(valueSelector: (K) -> V): ScatterMap<K, V> {
+  val result = MutableScatterMap<K, V>()
+  return associateWithTo(result, valueSelector)
+}
+
+/**
+ * Populates and returns the [destination] mutable map with key-value pairs for each element of the given collection,
+ * where key is the element itself and value is provided by the [valueSelector] function applied to that key.
+ *
+ * If any two elements are equal, the last one overwrites the former value in the map.
+ *
+ */
+inline fun <K, V, M : MutableScatterMap<in K, in V>> ScatterSet<K>.associateWithTo(
+  destination: M,
+  valueSelector: (K) -> V,
+): M {
+  this.forEach { element ->
+    destination.put(element, valueSelector(element))
+  }
+  return destination
+}