chore: moved tools into ext

src/buffer/controller.rs

@@ -12,7 +12,7 @@ use crate::api::Controller;
 
 use crate::api::TextChange;
 
-use super::tools::InternallyMutable;
+use crate::ext::InternallyMutable;
 
 /// the buffer controller implementation
 ///

src/buffer/mod.rs

@@ -9,9 +9,6 @@
 /// buffer controller implementation
 pub mod controller;
 
-/// assorted helpers to handle buffer controllers
-pub mod tools;
-
 pub(crate) mod worker;
 
 pub use controller::BufferController as Controller;

src/ext.rs

@@ -81,3 +81,11 @@ impl<T: Clone> InternallyMutable<T> {
 		self.getter.borrow().clone()
 	}
 }
+
+pub(crate) struct CallbackHandleWatch<T>(pub(crate) tokio::sync::watch::Sender<Option<T>>);
+
+impl<T> crate::api::controller::CallbackHandle for CallbackHandleWatch<T> {
+	fn unregister(self) {
+		self.0.send_replace(None);
+	}
+}

src/lib.rs

@@ -140,6 +140,9 @@ pub mod prelude;
 /// language-specific ffi "glue"
 pub mod ffi;
 
+/// common utils used in this library and re-exposed
+pub mod ext;
+
 /// underlying OperationalTransform library used, re-exported
 pub use woot;