lua is managing vim objects in cache table to release with finalizer. So it doesn't need to call something in luaV_dict_gc/luaV_list_gc to undef vim objects. it makes double free.
https://gist.github.com/mattn/5356214 diff -r a079ef0ce001 src/if_lua.c --- a/src/if_lua.c Sat Apr 06 17:26:26 2013 +0200 +++ b/src/if_lua.c Thu Apr 11 01:30:49 2013 +0900 @@ -665,13 +665,6 @@ luaV_type_tostring(list, LUAVIM_LIST) static int -luaV_list_gc (lua_State *L) -{ - list_unref(luaV_unbox(L, luaV_List, 1)); - return 0; -} - - static int luaV_list_len (lua_State *L) { list_T *l = luaV_unbox(L, luaV_List, 1); @@ -801,7 +794,6 @@ static const luaL_Reg luaV_List_mt[] = { {"__tostring", luaV_list_tostring}, - {"__gc", luaV_list_gc}, {"__len", luaV_list_len}, {"__call", luaV_list_call}, {"__index", luaV_list_index}, @@ -830,13 +822,6 @@ luaV_type_tostring(dict, LUAVIM_DICT) static int -luaV_dict_gc (lua_State *L) -{ - dict_unref(luaV_unbox(L, luaV_Dict, 1)); - return 0; -} - - static int luaV_dict_len (lua_State *L) { dict_T *d = luaV_unbox(L, luaV_Dict, 1); @@ -929,7 +914,6 @@ static const luaL_Reg luaV_Dict_mt[] = { {"__tostring", luaV_dict_tostring}, - {"__gc", luaV_dict_gc}, {"__len", luaV_dict_len}, {"__call", luaV_dict_call}, {"__index", luaV_dict_index}, - Yasuhiro Matsumoto -- -- You received this message from the "vim_dev" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
