Start sketching out runner runtime

crates/runner/src/lib.rs

@@ -0,0 +1,37 @@
+use mlua::{Error, FromLua, Lua, ToLua, UserData};
+
+pub mod runtime;
+pub use runtime::*;
+
+impl Runtime for Lua {
+    type Module = String;
+    // type Error = Error;
+    type Interface = LuaInterface;
+
+    fn init(module: Self::Module) -> Option<Self> {
+        let lua = Lua::new();
+        lua.load(&module).exec().ok()?;
+        return Some(lua);
+    }
+
+    fn interface(&self) -> Self::Interface {
+        todo!()
+    }
+
+    fn val<'lua, K: ToLua<'lua>, V: FromLua<'lua>>(&'lua self, key: K) -> Option<V> {
+        self.globals().get(key).ok()
+    }
+}
+
+pub struct LuaInterface {
+    funs: Vec<String>,
+    vals: Vec<String>,
+}
+
+impl Interface for LuaInterface {
+    type Handle = String;
+
+    fn handles(&self) -> &[Self::Handle] {
+        todo!()
+    }
+}