add evalsto

1 files changed, 17 insertions, 0 deletions

diff --git a/src/lua/ownedfunction.rs b/src/lua/ownedfunction.rs
new file mode 100644
index 0000000..a8d81cf
--- /dev/null
+++ b/src/lua/ownedfunction.rs
@@ -0,0 +1,17 @@
+use mlua::{Function, Lua, RegistryKey, Value};
+
+#[derive(Debug)]
+pub struct OwnedFunction {
+    key: RegistryKey,
+}
+
+impl OwnedFunction {
+    pub fn new<'lua>(value: Value<'lua>, lua: &'lua Lua) -> Self {
+        let key = lua.create_registry_value(value).unwrap();
+        Self { key }
+    }
+
+    pub fn get<'lua>(&self, lua: &'lua Lua) -> Function<'lua> {
+        lua.registry_value(&self.key).unwrap()
+    }
+}