From 60ff8d046c01c7a820e56d584bf9fcabacc417b7 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <mail@tazj.in>
Date: Fri, 2 Sep 2022 23:47:02 +0300
Subject: chore(tvix/eval): print value when panicking on internals

This makes it much easier to figure out what happened while debugging
this sort of thing.

Change-Id: I2e0e8096709adc647d63c04f213c547c415e5f44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6418
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
---
 tvix/eval/src/vm.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'tvix/eval')

diff --git a/tvix/eval/src/vm.rs b/tvix/eval/src/vm.rs
index fecaae37aa..259fbf7d11 100644
--- a/tvix/eval/src/vm.rs
+++ b/tvix/eval/src/vm.rs
@@ -673,7 +673,9 @@ impl VM {
             | Value::AttrNotFound
             | Value::DynamicUpvalueMissing(_)
             | Value::Blueprint(_)
-            | Value::DeferredUpvalue(_) => panic!("tvix bug: internal value left on stack"),
+            | Value::DeferredUpvalue(_) => {
+                panic!("tvix bug: internal value left on stack: {:?}", value)
+            }
 
             _ => Ok(()),
         }
-- 
cgit 1.4.1