From c357bdac4286a5fb980dfbd6f299ff70114632e6 Mon Sep 17 00:00:00 2001
From: johannes-wolf <mail@johannes-wolf.com>
Date: Sat, 23 Dec 2023 20:33:26 +0100
Subject: [PATCH] mark: Add assertion messages

---
 src/mark.typ | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/mark.typ b/src/mark.typ
index 92a2b98db..a96160aff 100644
--- a/src/mark.typ
+++ b/src/mark.typ
@@ -193,7 +193,8 @@
       }
       vector.sub(pt, vector.scale(vector.norm(dir), distance * if is-end { 1 } else { -1 }))
     }
-    assert.ne(pos, none)
+    assert.ne(pos, none,
+      message: "Could not determine mark position")
 
     let dir = if style.flex {
       let a = pos
@@ -224,7 +225,8 @@
         vector.scale(dir, if is-end { -1 } else { 1 })
       }
     }
-    assert.ne(dir, none)
+    assert.ne(pos, none,
+      message: "Could not determine mark direction")
 
     mark = transform-mark(
       style,