Moving lua_recast out of LuaOCCI into BLua.h

1 files changed, 20 insertions, 0 deletions

diff --git a/include/BLua.h b/include/BLua.h
index 2ca7b2a..fc8adb2 100644
--- a/include/BLua.h
+++ b/include/BLua.h
@@ -336,6 +336,26 @@ class LuaHelpers : public Base {
     }
 };
 
+template<class T>
+T * lua_recast(Lua * L, int n = 1) {
+    Base * b;
+    T * r;
+
+    b = (Base *) LuaObject::getme(L, n);
+    if (!b) {
+        L->error("Base object required; got null.");
+    }
+
+    r = dynamic_cast<T *>(b);
+
+    if (!r) {
+        L->error(String("Object not compatible; expecting ") + typeid(r).name() + " but got *" + typeid(*b).name() + " instead.");
+    }
+
+    return r;
+}
+
+
 
  /*******************************\
 |**  Let's have a sample of use **|