Introduce SwitchCaseNode to simplify types

1 files changed, 13 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/couscous/util/Fold.java b/src/main/java/org/zwobble/couscous/util/Fold.java
new file mode 100644
index 0000000..85622ed
--- /dev/null
+++ b/src/main/java/org/zwobble/couscous/util/Fold.java
@@ -0,0 +1,13 @@
+package org.zwobble.couscous.util;
+
+import java.util.function.BiFunction;
+
+public class Fold {
+    public static <T, V> V foldLeft(Iterable<T> iterable, V initialValue, BiFunction<V, T, V> function) {
+        V value = initialValue;
+        for (T element : iterable) {
+            value = function.apply(value, element);
+        }
+        return value;
+    }
+}