From 120de78bc34317eb7b06c87195eeee8940a60e0d Mon Sep 17 00:00:00 2001 From: Colin Date: Tue, 1 Mar 2022 21:33:02 +0800 Subject: [PATCH] fix inconsistency --- src/advance/smart-pointer/cell-refcell.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/advance/smart-pointer/cell-refcell.md b/src/advance/smart-pointer/cell-refcell.md index e91045c0..af06f66d 100644 --- a/src/advance/smart-pointer/cell-refcell.md +++ b/src/advance/smart-pointer/cell-refcell.md @@ -159,13 +159,13 @@ impl Messenger for MsgQueue { 我们要在自己的代码中使用该特征实现一个异步消息队列，出于性能的考虑，消息先写到本地缓存(内存)中，然后批量发送出去，因此在 `send` 方法中，需要将消息先行插入到本地缓存 `msg_cache` 中。但是问题来了，该 `send` 方法的签名是 `&self`，因此上述代码会报错： ```console -error[E0596]: cannot borrow `self.sent_messages` as mutable, as it is behind a `&` reference +error[E0596]: cannot borrow `self.msg_cache` as mutable, as it is behind a `&` reference --> src/main.rs:11:9 | 2 | fn send(&self, msg: String); | ----- help: consider changing that to be a mutable reference: `&mut self` ... -11 | self.sent_messages.push(msg) +11 | self.msg_cache.push(msg) | ^^^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable ```