[Fix] Fix crash in toEnumSet() when set is empty.

Fixes: zhanghai#825
TomasYounge · Jul 7, 2022 · 590c8ea · 590c8ea
1 parent 29e7002
commit 590c8ea
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/app/src/main/java/me/zhanghai/android/files/util/CollectionExtensions.kt b/app/src/main/java/me/zhanghai/android/files/util/CollectionExtensions.kt
@@ -31,7 +31,8 @@ fun <T : Enum<T>> enumSetOf(first: T, vararg rest: T): EnumSet<T> = EnumSet.of(f
 
 fun <T> Iterable<T>.toLinkedSet(): LinkedHashSet<T> = toCollection(LinkedHashSet())
 
-fun <T : Enum<T>> Collection<T>.toEnumSet(): EnumSet<T> = EnumSet.copyOf(this)
+inline fun <reified T : Enum<T>> Collection<T>.toEnumSet(): EnumSet<T> =
+    if (isNotEmpty()) EnumSet.copyOf(this) else EnumSet.noneOf(T::class.java)
 
 fun <T : Collection<*>> T.takeIfNotEmpty(): T? = if (isNotEmpty()) this else null