GT_Recipe: speedup

1 files changed, 23 insertions, 0 deletions

diff --git a/src/main/java/gregtech/api/util/extensions/IteratorExt.java b/src/main/java/gregtech/api/util/extensions/IteratorExt.java
new file mode 100644
index 0000000000..1a29a7b41a
--- /dev/null
+++ b/src/main/java/gregtech/api/util/extensions/IteratorExt.java
@@ -0,0 +1,23 @@
+package gregtech.api.util.extensions;
+
+import gregtech.api.objects.iterators.ArrayIterator;
+import gregtech.api.objects.iterators.MergedIterator;
+import gregtech.api.objects.iterators.NonNullIterator;
+
+import java.util.Iterator;
+
+public class IteratorExt {
+    @SafeVarargs
+    public static <T> Iterator<T> merge(Iterator<T>... iterators) {
+        return new MergedIterator<>(iterators);
+    }
+
+    public static <T> Iterator<T> withoutNulls(Iterator<T> iterator) {
+        return new NonNullIterator<>(iterator);
+    }
+
+    @SafeVarargs
+    public static <T> ArrayIterator<T> ofArray(T... items) {
+        return new ArrayIterator<>(items);
+    }
+}