Allow switching executor::Default with features

src/executor.rs

@@ -5,38 +5,49 @@ pub use platform::Default;
 
 #[cfg(not(target_arch = "wasm32"))]
 mod platform {
-    use iced_winit::{executor::ThreadPool, futures, Executor};
+    use iced_futures::{executor, futures};
+
+    #[cfg(feature = "tokio")]
+    type Executor = executor::Tokio;
+
+    #[cfg(all(not(feature = "tokio"), feature = "async-std"))]
+    type Executor = executor::AsyncStd;
+
+    #[cfg(not(any(feature = "tokio", feature = "async-std")))]
+    type Executor = executor::ThreadPool;
 
     /// A default cross-platform executor.
     ///
-    /// - On native platforms, it will use a
-    ///   `iced_futures::executor::ThreadPool`.
+    /// - On native platforms, it will use:
+    ///   - `iced_futures::executor::Tokio` when the `tokio` feature is enabled.
+    ///   - `iced_futures::executor::AsyncStd` when the `async-std` feature is
+    ///     enabled.
+    ///   - `iced_futures::executor::ThreadPool` otherwise.
     /// - On the Web, it will use `iced_futures::executor::WasmBindgen`.
     #[derive(Debug)]
-    pub struct Default(ThreadPool);
+    pub struct Default(Executor);
 
-    impl Executor for Default {
+    impl super::Executor for Default {
         fn new() -> Result<Self, futures::io::Error> {
-            Ok(Default(ThreadPool::new()?))
+            Ok(Default(Executor::new()?))
         }
 
         fn spawn(
             &self,
             future: impl futures::Future<Output = ()> + Send + 'static,
         ) {
-            self.0.spawn(future);
+            let _ = self.0.spawn(future);
         }
     }
 }
 
 #[cfg(target_arch = "wasm32")]
 mod platform {
-    use iced_web::{executor::WasmBindgen, futures, Executor};
+    use iced_futures::{executor::WasmBindgen, futures, Executor};
 
     /// A default cross-platform executor.
     ///
-    /// - On native platforms, it will use a
-    ///   `iced_futures::executor::ThreadPool`.
+    /// - On native platforms, it will use `iced_futures::executor::ThreadPool`.
     /// - On the Web, it will use `iced_futures::executor::WasmBindgen`.
     #[derive(Debug)]
     pub struct Default(WasmBindgen);