mirror/OpenMW
1
0
Fork 0
mirror of https://gitlab.com/OpenMW/openmw.git synced 2025-01-04 02:41:19 +00:00
Code Issues Projects Releases Wiki Activity

[Lua] add __len metafunction for readonly objects

Browse Source
This commit is contained in:
Petr Mikheev 2023-07-16 06:17:04 +02:00
parent c5789b5543
commit f86a45d60a
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
components/lua/luastate.cpp
View File

@ -246,6 +246,9 @@ namespace LuaUtil
local nextFn, t, firstKey = ipairs(getmetatable(v).t)
return function(_, k) return nextFn(t, k) end, v, firstKey
end
function lenForReadOnly(v)
return #getmetatable(v).t
end
local function nextForArray(array, index)
index = (index or 0) + 1
if index <= #array then
@ -300,6 +303,7 @@ namespace LuaUtil
meta["__index"] = table;
meta["__pairs"] = lua["pairsForReadOnly"];
meta["__ipairs"] = lua["ipairsForReadOnly"];
meta["__len"] = lua["lenForReadOnly"];
lua_newuserdata(luaState, 0);
sol::stack::push(luaState, meta);