1 files changed, 3 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/skyframe/WalkableGraph.java b/src/main/java/com/google/devtools/build/skyframe/WalkableGraph.java
index 0c073a7565..75c347f8fe 100644
--- a/src/main/java/com/google/devtools/build/skyframe/WalkableGraph.java
+++ b/src/main/java/com/google/devtools/build/skyframe/WalkableGraph.java
@@ -80,6 +80,9 @@ public interface WalkableGraph {
     EvaluationResult<SkyValue> prepareAndGet(Collection<String> roots, String offset,
         int numThreads, EventHandler eventHandler) throws InterruptedException;
 
+    /** Consumers of the graph given by {@link #prepareAndGet} may call this after they are done. */
+    void afterUse(WalkableGraph walkableGraph);
+
     /** Returns the {@link SkyKey} that defines this universe. */
     SkyKey getUniverseKey(Collection<String> roots, String offset);
   }