3 files changed, 72 insertions, 23 deletions

diff --git a/crates/ra_assists/src/handlers/change_lifetime_anon_to_named.rs b/crates/ra_assists/src/handlers/change_lifetime_anon_to_named.rs
index 8d8f7833f..7101d9aaf 100644
--- a/crates/ra_assists/src/handlers/change_lifetime_anon_to_named.rs
+++ b/crates/ra_assists/src/handlers/change_lifetime_anon_to_named.rs
@@ -2,29 +2,29 @@ use crate::{AssistContext, AssistId, Assists};
 use ra_syntax::{ast, ast::TypeParamsOwner, AstNode, SyntaxKind};
 use std::collections::HashSet;
 
-/// Assist: change_lifetime_anon_to_named
-///
-/// Change an anonymous lifetime to a named lifetime.
-///
-/// ```
-/// impl Cursor<'_<|>> {
-///     fn node(self) -> &SyntaxNode {
-///         match self {
-///             Cursor::Replace(node) | Cursor::Before(node) => node,
-///         }
-///     }
-/// }
-/// ```
-/// ->
-/// ```
-/// impl<'a> Cursor<'a> {
-///     fn node(self) -> &SyntaxNode {
-///         match self {
-///             Cursor::Replace(node) | Cursor::Before(node) => node,
-///         }
-///     }
-/// }
-/// ```
+// Assist: change_lifetime_anon_to_named
+//
+// Change an anonymous lifetime to a named lifetime.
+//
+// ```
+// impl Cursor<'_<|>> {
+//     fn node(self) -> &SyntaxNode {
+//         match self {
+//             Cursor::Replace(node) | Cursor::Before(node) => node,
+//         }
+//     }
+// }
+// ```
+// ->
+// ```
+// impl<'a> Cursor<'a> {
+//     fn node(self) -> &SyntaxNode {
+//         match self {
+//             Cursor::Replace(node) | Cursor::Before(node) => node,
+//         }
+//     }
+// }
+// ```
 // FIXME: How can we handle renaming any one of multiple anonymous lifetimes?
 pub(crate) fn change_lifetime_anon_to_named(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
     let lifetime_token = ctx.find_token_at_offset(SyntaxKind::LIFETIME)?;
diff --git a/crates/ra_assists/src/tests/generated.rs b/crates/ra_assists/src/tests/generated.rs
index 250e56a69..abffbf97c 100644
--- a/crates/ra_assists/src/tests/generated.rs
+++ b/crates/ra_assists/src/tests/generated.rs
@@ -269,6 +269,31 @@ pub mod std { pub mod collections { pub struct HashMap { } } }
 }
 
 #[test]
+fn doctest_change_lifetime_anon_to_named() {
+    check_doc_test(
+        "change_lifetime_anon_to_named",
+        r#####"
+impl Cursor<'_<|>> {
+    fn node(self) -> &SyntaxNode {
+        match self {
+            Cursor::Replace(node) | Cursor::Before(node) => node,
+        }
+    }
+}
+"#####,
+        r#####"
+impl<'a> Cursor<'a> {
+    fn node(self) -> &SyntaxNode {
+        match self {
+            Cursor::Replace(node) | Cursor::Before(node) => node,
+        }
+    }
+}
+"#####,
+    )
+}
+
+#[test]
 fn doctest_change_return_type_to_result() {
     check_doc_test(
         "change_return_type_to_result",
diff --git a/docs/user/assists.md b/docs/user/assists.md
index 4ad7ea59d..a1058ecde 100644
--- a/docs/user/assists.md
+++ b/docs/user/assists.md
@@ -259,6 +259,30 @@ fn main() {
 }
 ```
 
+## `change_lifetime_anon_to_named`
+
+Change an anonymous lifetime to a named lifetime.
+
+```rust
+// BEFORE
+impl Cursor<'_┃> {
+    fn node(self) -> &SyntaxNode {
+        match self {
+            Cursor::Replace(node) | Cursor::Before(node) => node,
+        }
+    }
+}
+
+// AFTER
+impl<'a> Cursor<'a> {
+    fn node(self) -> &SyntaxNode {
+        match self {
+            Cursor::Replace(node) | Cursor::Before(node) => node,
+        }
+    }
+}
+```
+
 ## `change_return_type_to_result`
 
 Change the function's return type to Result.