misc: move accessing the inner connection to unstable feature

.github/workflows/docs.yml

@@ -19,7 +19,7 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: doc
-          args: --package mpris-server --no-deps
+          args: --package mpris-server --features "unstable" --no-deps
 
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3

Cargo.toml

@@ -19,6 +19,9 @@ futures-util = { version = "0.3", default-features = false, features = ["std"] }
 serde = "1.0"
 zbus = "3.14"
 
+[features]
+unstable = []
+
 [dev-dependencies]
 async-std = { version = "1.12", features = ["attributes", "unstable"] }
 static_assertions = "1.1"

README.md

@@ -18,6 +18,12 @@ This library supports all the following interfaces as defined in the specificati
 
 To implement these interfaces, this crate offers two flavors: you can either create your own struct and implement `RootInterface` and `PlayerInterface` (or with optional `TrackListInterface` and `PlaylistsInterface`), or you can use the ready-to-use `Player` struct.
 
+## Optional Features
+
+| Feature    | Description                                  | Default |
+| ---------- | -------------------------------------------- | ------- |
+| `unstable` | Enables internal APIs and unstable features. | No      |
+
 ## Examples
 
 For more detailed examples, see also the [examples directory](https://github.com/SeaDve/mpris-server/tree/main/examples).

src/local_server.rs

@@ -603,6 +603,7 @@ where
     /// Returns a reference to the inner [`Connection`].
     ///
     /// If you needed to call this, consider filing an issue.
+    #[cfg(feature = "unstable")]
     #[inline]
     pub fn connection(&self) -> &Connection {
         self.inner.connection()

src/server.rs

@@ -411,6 +411,7 @@ where
     /// Returns a reference to the inner [`Connection`].
     ///
     /// If you needed to call this, consider filing an issue.
+    #[cfg(feature = "unstable")]
     #[inline]
     pub fn connection(&self) -> &Connection {
         &self.connection