Implement `Runtime` and `Executor` in `iced_core`

They can be leveraged by shells to easily execute commands
and track subscriptions.

1 files changed, 11 insertions, 0 deletions

diff --git a/core/src/runtime/executor.rs b/core/src/runtime/executor.rs
new file mode 100644
index 00000000..d171c6d5
--- /dev/null
+++ b/core/src/runtime/executor.rs
@@ -0,0 +1,11 @@
+use futures::Future;
+
+pub trait Executor {
+    fn new() -> Self;
+
+    fn spawn(&self, future: impl Future<Output = ()> + Send + 'static);
+
+    fn enter<R>(&self, f: impl FnOnce() -> R) -> R {
+        f()
+    }
+}