wip: rip out unsafe task engine

packages/hooks/src/usefuture.rs

@@ -0,0 +1,34 @@
+use dioxus_core::{ScopeState, TaskId};
+use std::{cell::Cell, future::Future};
+
+pub fn use_future<'a, T: 'static, F: Future<Output = T>>(
+    cx: &'a ScopeState,
+    f: impl FnOnce() -> F,
+) -> FutureHandle<'a, T> {
+    cx.use_hook(
+        |_| {
+            //
+            UseFutureInner {
+                needs_regen: true,
+                task: None,
+            }
+        },
+        |_| {
+            //
+            FutureHandle {
+                cx,
+                value: Cell::new(None),
+            }
+        },
+    )
+}
+
+struct UseFutureInner {
+    needs_regen: bool,
+    task: Option<TaskId>,
+}
+
+pub struct FutureHandle<'a, T> {
+    cx: &'a ScopeState,
+    value: Cell<Option<T>>,
+}