src/ldo: On non-lua originating error, return the js error as a lightuserdata

1 files changed, 5 insertions, 1 deletions

diff --git a/src/ldo.js b/src/ldo.js
index fa59e0b..6b37e14 100644
--- a/src/ldo.js
+++ b/src/ldo.js
@@ -297,7 +297,11 @@ const luaD_rawrunprotected = function(L, f, ud) {
     try {
         f(L, ud);
     } catch (e) {
-        if (lj.status === 0) lj.status = -1;
+        if (lj.status === 0) {
+            lj.status = -1;
+            /* error was not thrown via luaD_throw; push error object as light user data */
+            lapi.lua_pushlightuserdata(L, e);
+        }
     }
 
     L.errorJmp = lj.previous;