From d9df0f43ac669a68dc76466a2f2c21885b5af2dd Mon Sep 17 00:00:00 2001
From: Unreal Hoang <unrealhoang@gmail.com>
Date: Thu, 26 Mar 2020 18:16:10 +0900
Subject: Assist: replace unwrap with match

---
 docs/user/assists.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'docs/user')

diff --git a/docs/user/assists.md b/docs/user/assists.md
index f3ce6b0e0..b2568a954 100644
--- a/docs/user/assists.md
+++ b/docs/user/assists.md
@@ -597,6 +597,29 @@ use std::collections::HashMap;
 fn process(map: HashMap<String, String>) {}
 ```
 
+## `replace_unwrap_with_match`
+
+Replaces `unwrap` a `match` expression. Works for Result and Option.
+
+```rust
+// BEFORE
+enum Result<T, E> { Ok(T), Err(E) }
+fn main() {
+    let x: Result<i32, i32> = Result::Ok(92);
+    let y = x.┃unwrap();
+}
+
+// AFTER
+enum Result<T, E> { Ok(T), Err(E) }
+fn main() {
+    let x: Result<i32, i32> = Result::Ok(92);
+    let y = match x {
+        Ok(a) => a,
+        _ => unreachable!(),
+    };
+}
+```
+
 ## `split_import`
 
 Wraps the tail of import into braces.
-- 
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