From 15a7ed2e95f2c4dfd3a52f34958d253e2f2648c4 Mon Sep 17 00:00:00 2001
From: Anton-4 <17049058+Anton-4@users.noreply.github.com>
Date: Tue, 9 Jul 2024 19:46:33 +0200
Subject: [PATCH] added error tip

---
 crates/compiler/mono/src/borrow.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/crates/compiler/mono/src/borrow.rs b/crates/compiler/mono/src/borrow.rs
index 865c912300..ba01224942 100644
--- a/crates/compiler/mono/src/borrow.rs
+++ b/crates/compiler/mono/src/borrow.rs
@@ -393,7 +393,11 @@ impl<'state, 'a> State<'state, 'a> {
                 let borrow_signature =
                     match borrow_signatures.procs.get(&(name.name(), proc_layout)) {
                         Some(s) => s,
-                        None => unreachable!("no borrow signature for {name:?} layout"),
+                        None =>  unreachable!(
+                            "\n\tNo borrow signature for {name:?} layout.\n\n\t\
+                            Tip: This can happen when you call a function with less arguments than it expects.\n\t\
+                            Like `Arg.list!` instead of `Arg.list! {{}}`"
+                        )
                     };
 
                 for (argument, ownership) in arguments.iter().zip(borrow_signature.iter()) {