From 46beca5bed8a7700b18100fe48a78373be5055f9 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 10 Dec 2018 13:46:03 -0200
Subject: Better error messages for some polymorphic functions

New auxiliary functions/macros 'luaL_argexpected'/'luaL_typeerror'
ease the creation of error messages such as

  bad argument #2 to 'setmetatable' (nil or table expected, got boolean)

(The novelty being the "got boolean" part...)
---
 lcorolib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lcorolib.c')

diff --git a/lcorolib.c b/lcorolib.c
index 9038f9fb..34462b53 100644
--- a/lcorolib.c
+++ b/lcorolib.c
@@ -20,7 +20,7 @@
 
 static lua_State *getco (lua_State *L) {
   lua_State *co = lua_tothread(L, 1);
-  luaL_argcheck(L, co, 1, "thread expected");
+  luaL_argexpected(L, co, 1, "thread");
   return co;
 }
 
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