Merge #3925

3925: Implement assist "Reorder field names" r=matklad a=geoffreycopin

This PR implements the "Reorder record fields" assist as discussed in issue #3821 .

Adding a `RecordFieldPat` variant to the `Pat` enum seemed like the easiest way to handle the `RecordPat` children as a single sequence of elements, maybe there is a better way ?

Co-authored-by: Geoffrey Copin <copin.geoffrey@gmail.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/docs/user/assists.md b/docs/user/assists.md
index cc42169d8e3..1d951042372 100644
--- a/docs/user/assists.md
+++ b/docs/user/assists.md
@@ -582,6 +582,21 @@ impl Walrus {
 }
 ```
 
+## `reorder_fields`
+
+Reorder the fields of record literals and record patterns in the same order as in
+the definition.
+
+```rust
+// BEFORE
+struct Foo {foo: i32, bar: i32};
+const test: Foo = ┃Foo {bar: 0, foo: 1}
+
+// AFTER
+struct Foo {foo: i32, bar: i32};
+const test: Foo = Foo {foo: 1, bar: 0}
+```
+
 ## `replace_if_let_with_match`
 
 Replaces `if let` with an else branch with a `match` expression.