From db225ed0a6bfee75cf7e989f3d4bd94e9ba4a476 Mon Sep 17 00:00:00 2001
From: Pavel Marek <pavel.marek@enso.org>
Date: Thu, 14 Nov 2024 18:09:55 +0100
Subject: [PATCH] EnsoObject.toDisplayString just throws AssertionError

---
 .../java/org/enso/interpreter/runtime/data/EnsoObject.java   | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/EnsoObject.java b/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/EnsoObject.java
index 4ca81883b7a..f70b676366d 100644
--- a/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/EnsoObject.java
+++ b/engine/runtime/src/main/java/org/enso/interpreter/runtime/data/EnsoObject.java
@@ -1,6 +1,5 @@
 package org.enso.interpreter.runtime.data;
 
-import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
 import com.oracle.truffle.api.TruffleLanguage;
 import com.oracle.truffle.api.interop.InteropLibrary;
 import com.oracle.truffle.api.interop.TruffleObject;
@@ -22,8 +21,8 @@ public abstract class EnsoObject implements TruffleObject {
   }
 
   @ExportMessage
-  @TruffleBoundary
   public Object toDisplayString(boolean allowSideEffects) {
-    return toString();
+    // Not implemented on purpose - should be implemented by subclasses.
+    throw new AssertionError("unimplemented");
   }
 }