Initial setup for results for wasm

src/dynamic_data/script_handling/script.rs

@@ -573,6 +573,11 @@ impl ScriptContainer {
         &self.script
     }
 
+    /// Whether or not the script is set.
+    pub fn is_any(&self) -> bool {
+        self.script.read().is_some()
+    }
+
     /// Get the underlying script as the downcasted value.
     pub fn get_as<T: 'static>(&self) -> Result<MappedRwLockReadGuard<T>> {
         let r = RwLockReadGuard::try_map(self.script.read(), |a| unsafe {