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-rw-r--r--src/lauxlib.js5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/lauxlib.js b/src/lauxlib.js
index d5b943b..15d8dab 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -76,6 +76,7 @@ const {
lua_version
} = require('./lua.js');
const {
+ from_userstring,
luastring_eq,
to_luastring,
to_uristring
@@ -366,7 +367,7 @@ const luaL_checkudata = function(L, ud, tname) {
};
const luaL_checkoption = function(L, arg, def, lst) {
- let name = def ? luaL_optstring(L, arg, def) : luaL_checkstring(L, arg);
+ let name = def !== null ? luaL_optstring(L, arg, def) : luaL_checkstring(L, arg);
for (let i = 0; lst[i]; i++)
if (luastring_eq(lst[i], name))
return i;
@@ -414,7 +415,7 @@ const luaL_checklstring = function(L, arg) {
const luaL_optlstring = function(L, arg, def) {
if (lua_type(L, arg) <= 0) {
- return def;
+ return def === null ? null : from_userstring(def);
} else return luaL_checklstring(L, arg);
};