Make SafeIO inherit of F0.

mperry · mperry · commit 250aa82edd48 · 2021-04-18T21:54:27.000+10:00
diff --git a/core/src/main/java/fj/data/SafeIO.java b/core/src/main/java/fj/data/SafeIO.java
@@ -1,13 +1,20 @@
 package fj.data;
 
+import fj.F0;
+
 /**
  * Created by MarkPerry on 3/07/2014.
  */
 @FunctionalInterface
-public interface SafeIO<A> extends IO<A> {
+public interface SafeIO<A> extends IO<A>, F0<A> {
 
 	@Override
 	A run();
 
+	@Override
+	default A f() {
+		return run();
+	}
+
 }
 
