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Fixed toPersistentSet, toPersistentMap to work with any impl. #108

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Fixed toPersistentSet, toPersistentMap to work with any impl. #108

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17 changes: 11 additions & 6 deletions core/commonMain/src/extensions.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -645,11 +645,14 @@ fun CharSequence.toImmutableSet(): PersistentSet<Char> = toPersistentSet()
* If the receiver is already a persistent set, returns it as is.
* If the receiver is a persistent set builder, calls `build` on it and returns the result.
*
* Elements of the returned set are iterated in the same order as in this collection.
* * If the receiver is not a persistent set builder,
* elements of the returned set are iterated in the same order as in this collection.
* Otherwise the order depends on the persistent set builder implementation.

*/
fun <T> Iterable<T>.toPersistentSet(): PersistentSet<T> =
this as? PersistentOrderedSet<T>
?: (this as? PersistentOrderedSetBuilder)?.build()
this as? PersistentSet<T>
?: (this as? PersistentSet.Builder)?.build()
?: PersistentOrderedSet.emptyOf<T>() + this

/**
Expand Down Expand Up @@ -715,11 +718,13 @@ fun <K, V> Map<K, V>.toImmutableMap(): ImmutableMap<K, V>
* If the receiver is already a persistent map, returns it as is.
* If the receiver is a persistent map builder, calls `build` on it and returns the result.
*
* Entries of the returned map are iterated in the same order as in this map.
* If the receiver is not a persistent map builder,
* entries of the returned map are iterated in the same order as in this map.
* Otherwise the order depends on the persistent map builder implementation.
*/
fun <K, V> Map<K, V>.toPersistentMap(): PersistentMap<K, V>
= this as? PersistentOrderedMap<K, V>
?: (this as? PersistentOrderedMapBuilder<K, V>)?.build()
= this as? PersistentMap<K, V>
?: (this as? PersistentMap.Builder<K, V>)?.build()
?: PersistentOrderedMap.emptyOf<K, V>().putAll(this)

/**
Expand Down