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1 files changed, 9 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/notenoughupdates/util/SequenceUtil.kt b/src/main/kotlin/moe/nea/notenoughupdates/util/SequenceUtil.kt
new file mode 100644
index 0000000..3e338bd
--- /dev/null
+++ b/src/main/kotlin/moe/nea/notenoughupdates/util/SequenceUtil.kt
@@ -0,0 +1,9 @@
+package moe.nea.notenoughupdates.util
+
+fun <T : Any> T.iterate(iterator: (T) -> T?): Sequence<T> = sequence {
+    var x: T? = this@iterate
+    while (x != null) {
+        yield(x)
+        x = iterator(x)
+    }
+}