Compute hash without serializing to string

1 files changed, 4 insertions, 0 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/evaluation/VariableTensor.java b/vespajlib/src/main/java/com/yahoo/tensor/evaluation/VariableTensor.java
index dbc8396d701..8a9a85d343c 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/evaluation/VariableTensor.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/evaluation/VariableTensor.java
@@ -9,6 +9,7 @@ import com.yahoo.tensor.functions.ToStringContext;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Objects;
 import java.util.Optional;
 
 /**
@@ -62,6 +63,9 @@ public class VariableTensor<NAMETYPE extends Name> extends PrimitiveTensorFuncti
         return name;
     }
 
+    @Override
+    public int hashCode() { return Objects.hash("variableTensor", name, requiredType); }
+
     private void verifyType(TensorType givenType) {
         if (requiredType.isPresent() && ! givenType.isAssignableTo(requiredType.get()))
             throw new IllegalArgumentException("Variable '" + name + "' must be compatible with " +