From 9f1c88b863e247da3cd60d2792a7a13b18e25e53 Mon Sep 17 00:00:00 2001
From: JSDurand <mmemmew@gmail.com>
Date: Wed, 14 Dec 2022 23:48:22 +0800
Subject: a temporary check point

just to save things in a commit
---
 receme/src/functor.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'receme')

diff --git a/receme/src/functor.rs b/receme/src/functor.rs
index 95e2555..cd4dac2 100644
--- a/receme/src/functor.rs
+++ b/receme/src/functor.rs
@@ -31,6 +31,14 @@ pub trait Functor<T> {
     fn fmap<S>(self, f: impl FnMut(T) -> S) -> Self::Target<S>;
 }
 
+impl<T> Functor<T> for Vec<T> {
+    type Target<S> = Vec<S>;
+
+    fn fmap<S>(self, f: impl FnMut(T) -> S) -> Self::Target<S> {
+        self.into_iter().map(f).collect()
+    }
+}
+
 /// A functor can map over its generic type parameter.
 ///
 /// It can map from Functor(T) to Functor(S).
-- 
cgit v1.2.3-18-g5258