Add hacktastic closures for lambdas (not anonymous classes)

1 files changed, 5 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/couscous/util/ExtraStreams.java b/src/main/java/org/zwobble/couscous/util/ExtraStreams.java
index 6bbf1c8..e3ae601 100644
--- a/src/main/java/org/zwobble/couscous/util/ExtraStreams.java
+++ b/src/main/java/org/zwobble/couscous/util/ExtraStreams.java
@@ -1,9 +1,14 @@
 package org.zwobble.couscous.util;
 
+import java.util.Optional;
 import java.util.stream.Stream;
 
 public class ExtraStreams {
     public static <T> Stream<T> concatStreams(Stream<? extends T> first, Stream<? extends T> second, Stream<? extends T> third) {
         return Stream.concat(first, Stream.concat(second, third));
     }
+
+    public static <T> Stream<T> toStream(Optional<T> value) {
+        return value.isPresent() ? Stream.of(value.get()) : Stream.empty();
+    }
 }