fix: check if type assertion of return value is valid

2021-05-11 18:59:54 -04:00 · 2021-05-11 18:59:54 -04:00 · 0f9d3732fb
parent accd4beeba
commit 0f9d3732fb
1 changed files with 2 additions and 2 deletions
--- 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,