Compute hash without serializing to string

1 files changed, 4 insertions, 0 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/Expand.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/Expand.java
index c049e5d41da..eee037c8dba 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/functions/Expand.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/Expand.java
@@ -6,6 +6,7 @@ import com.yahoo.tensor.evaluation.Name;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Objects;
 
 /**
  * The <i>expand</i> tensor function returns a tensor with a new dimension of
@@ -45,4 +46,7 @@ public class Expand<NAMETYPE extends Name> extends CompositeTensorFunction<NAMET
         return "expand(" + argument.toString(context) + ", " + dimensionName + ")";
     }
 
+    @Override
+    public int hashCode() { return Objects.hash("expand", argument, dimensionName); }
+
 }