From 089edee8af32c31d496cc38a46aa9d2c08ef73b7 Mon Sep 17 00:00:00 2001
From: ConnorSkees <39542938+ConnorSkees@users.noreply.github.com>
Date: Sun, 16 Feb 2020 12:17:34 -0500
Subject: [PATCH] Proper errors for missing arguments

---
 src/builtin/macros.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/builtin/macros.rs b/src/builtin/macros.rs
index 51c8bc5..f38d4e5 100644
--- a/src/builtin/macros.rs
+++ b/src/builtin/macros.rs
@@ -4,7 +4,7 @@ macro_rules! arg {
             Some(v) => v,
             None => match $args.get($name) {
                 Some(v) => v,
-                None => panic!("missing variable"),
+                None => return Err(concat!("Missing argument $", $name, ".").into()),
             },
         };
     };