2 files changed, 10 insertions, 0 deletions

diff --git a/src/FbTk/LuaUtil.cc b/src/FbTk/LuaUtil.cc
index 700ef1a..01744bf 100644
--- a/src/FbTk/LuaUtil.cc
+++ b/src/FbTk/LuaUtil.cc
@@ -115,4 +115,13 @@ void Lua::readOnlySet(int index) {
     pop();
 }
 
+void Lua::readOnlySetField(int index, const char *k) {
+    checkstack(1);
+    index = absindex(index);
+
+    pushstring(k);
+    insert(-2);
+    readOnlySet(index);
+}
+
 } // namespace FbTk
diff --git a/src/FbTk/LuaUtil.hh b/src/FbTk/LuaUtil.hh
index d013ed9..0b33040 100644
--- a/src/FbTk/LuaUtil.hh
+++ b/src/FbTk/LuaUtil.hh
@@ -52,6 +52,7 @@ public:
      * It can be used to modify protected entries or create new ones.
      */
     void readOnlySet(int index);
+    void readOnlySetField(int index, const char *k);
 
     template<typename Functor>
     static void registerInitFunction(const Functor &fn) {