From: Skgland <bennet.blessmann+github@googlemail.com>
Date: Sun, 7 Dec 2025 22:06:09 +0000 (+0100)
Subject: don't calculate panic message eagerly
X-Git-Url: https://git.sagredo.dev/?a=commitdiff_plain;h=580572aec6227c4371fad2936f7a7c3c1f32d91e;p=scryer-prolog.git

don't calculate panic message eagerly
---

diff --git a/src/macros.rs b/src/macros.rs
index a5e16b8b..7e7853dc 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -481,11 +481,13 @@ pub(crate) use heap_index_checked;
 macro_rules! heap_index {
     ($idx:expr) => {{
         let idx = $idx;
-        $crate::macros::heap_index_checked!(idx).expect(&format!(
-            "overflow while calculating heap index {idx} * {} > {}",
-            std::mem::size_of::<HeapCellValue>(),
-            usize::MAX,
-        ))
+        $crate::macros::heap_index_checked!(idx).unwrap_or_else(|| {
+            panic!(
+                "overflow while calculating heap index {idx} * {} > {}",
+                std::mem::size_of::<HeapCellValue>(),
+                usize::MAX,
+            )
+        })
     }};
 }