From c08ad1cf8ac2a81e9a772eddccaecbd2a6883edd Mon Sep 17 00:00:00 2001
From: Dylan MacKenzie <ecstaticmorse@gmail.com>
Date: Fri, 23 Aug 2019 16:08:33 -0700
Subject: Handle `Struct { box i }` syntax

Named structs can have `box` patterns that will bind to their fields.
This is similar to the behavior of the `ref` and `mut` fields, but is at
least a little bit surprising.
---
 crates/ra_parser/src/grammar/patterns.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crates/ra_parser/src/grammar/patterns.rs b/crates/ra_parser/src/grammar/patterns.rs
index f9e6de13c..eae70ab85 100644
--- a/crates/ra_parser/src/grammar/patterns.rs
+++ b/crates/ra_parser/src/grammar/patterns.rs
@@ -161,6 +161,9 @@ fn record_field_pat_list(p: &mut Parser) {
             T![..] => p.bump(),
             IDENT if p.nth(1) == T![:] => record_field_pat(p),
             T!['{'] => error_block(p, "expected ident"),
+            T![box] => {
+                box_pat(p);
+            }
             _ => {
                 bind_pat(p, false);
             }
-- 
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