Add core Box implementations: ArrayBox, ResultBox, FutureBox, BufferBox, FileBox, JSONBox, HttpClientBox, StreamBox, RegexBox

src/boxes/future/mod.rs

@@ -0,0 +1,21 @@
+//! FutureBox 🔄 - 非同期処理基盤
+// Nyashの箱システムによる非同期処理の基盤を提供します。
+// 参考: 既存Boxの設計思想
+
+use std::future::Future;
+use std::pin::Pin;
+
+pub struct FutureBox<T> {
+    pub future: Pin<Box<dyn Future<Output = T> + Send>>,
+}
+
+impl<T> FutureBox<T> {
+    pub fn new<F>(fut: F) -> Self
+    where
+        F: Future<Output = T> + Send + 'static,
+    {
+        FutureBox {
+            future: Box::pin(fut),
+        }
+    }
+}