Add Lua typecast from C++ vector to C-Array

This is useful for MIDI bytes amongst other things

2 files changed, 13 insertions, 2 deletions

diff --git a/libs/lua/LuaBridge/detail/CFunctions.h b/libs/lua/LuaBridge/detail/CFunctions.h
index 22dc115a6a..88c30fc4ad 100644
--- a/libs/lua/LuaBridge/detail/CFunctions.h
+++ b/libs/lua/LuaBridge/detail/CFunctions.h
@@ -1148,6 +1148,17 @@ struct CFunc
     if (!t) { return luaL_error (L, "cannot derefencee shared_ptr"); }
     return tableToListHelper<T, C> (L, t->get());
   }
+  //--------------------------------------------------------------------------
+
+
+  template <class T, class C>
+  static int vectorToArray (lua_State *L)
+  {
+    C * const t = Userdata::get<C> (L, 1, false);
+    T * a = &((*t)[0]);
+    Stack <T*>::push (L, a);
+    return 1;
+  }
 
   //--------------------------------------------------------------------------
   template <class T, class C>
diff --git a/libs/lua/LuaBridge/detail/Namespace.h b/libs/lua/LuaBridge/detail/Namespace.h
index 0ea453e932..46fdaa5252 100644
--- a/libs/lua/LuaBridge/detail/Namespace.h
+++ b/libs/lua/LuaBridge/detail/Namespace.h
@@ -1938,11 +1938,11 @@ public:
     return beginConstStdVector<T> (name)
       .addVoidConstructor ()
       .addFunction ("push_back", (void (LT::*)(const T&))&LT::push_back)
+      .addFunction ("clear", (void (LT::*)())&LT::clear)
+      .addExtCFunction ("to_array", &CFunc::vectorToArray<T, LT>)
       .addExtCFunction ("add", &CFunc::tableToList<T, LT>);
   }
 
-
-
   //----------------------------------------------------------------------------
 
   template <class T>