diff options
| -rw-r--r-- | src/lapi.js | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/lapi.js b/src/lapi.js index 9dbebad..46c7e2b 100644 --- a/src/lapi.js +++ b/src/lapi.js @@ -473,7 +473,13 @@ const lua_createtable = function(L, narray, nrec) { }; const lua_newuserdata = function(L, size) { - L.stack[L.top++] = new lobject.TValue(CT.LUA_TUSERDATA, new ArrayBuffer(size)); + let box; + if (typeof size == "number") + box = new ArrayBuffer(size); + else // if size is not passed, create a new empty object + box = Object.create(null); + + L.stack[L.top++] = new lobject.TValue(CT.LUA_TUSERDATA, box); assert(L.top <= L.ci.top, "stack overflow"); |