From 0f9d3732fb8c09cbc1e7dd532a8f8ff2a9b8decd Mon Sep 17 00:00:00 2001
From: sammy <38820196+TorchedSammy@users.noreply.github.com>
Date: Tue, 11 May 2021 18:59:54 -0400
Subject: [PATCH] fix: check if type assertion of return value is valid

---
 shell.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/shell.go b/shell.go
index 3ae8349..86750be 100644
--- a/shell.go
+++ b/shell.go
@@ -60,8 +60,8 @@ func RunInput(input string) {
 
 		l.Pop(1)
 
-		if luaexitcode != lua.LNil {
-			exitcode = luaexitcode.(lua.LNumber)
+		if code, ok := luaexitcode.(lua.LNumber); luaexitcode != lua.LNil && ok {
+			exitcode = code
 		}
 		if err != nil {
 			fmt.Fprintln(os.Stderr,