1 files changed, 11 insertions, 0 deletions
diff --git a/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/ExpressionFunction.java b/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/ExpressionFunction.java
index 432fab00b2b..da34ab8822d 100755
--- a/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/ExpressionFunction.java
+++ b/searchlib/src/main/java/com/yahoo/searchlib/rankingexpression/ExpressionFunction.java
@@ -8,6 +8,7 @@ import com.yahoo.text.Utf8;
 
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
+import java.util.Collections;
 import java.util.Deque;
 import java.util.HashMap;
 import java.util.List;
@@ -26,6 +27,16 @@ public class ExpressionFunction {
     private final RankingExpression body;
 
     /**
+     * Constructs a new function with no arguments
+     *
+     * @param name the name of this function
+     * @param body the ranking expression that defines this function
+     */
+    public ExpressionFunction(String name, RankingExpression body) {
+        this(name, Collections.emptyList(), body);
+    }
+
+    /**
      * Constructs a new function
      *
      * @param name the name of this function