From ad72699553c39f159f25a6dc7ecd5df953817407 Mon Sep 17 00:00:00 2001
From: Caio <c410.f3r@gmail.com>
Date: Sat, 9 Mar 2019 20:40:22 -0300
Subject: Add async keyword

---
 crates/ra_parser/src/grammar/expressions/atom.rs |  5 +++++
 crates/ra_parser/src/grammar/items.rs            | 10 +++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'crates/ra_parser/src/grammar')

diff --git a/crates/ra_parser/src/grammar/expressions/atom.rs b/crates/ra_parser/src/grammar/expressions/atom.rs
index 9f282c74d..53bb26c5f 100644
--- a/crates/ra_parser/src/grammar/expressions/atom.rs
+++ b/crates/ra_parser/src/grammar/expressions/atom.rs
@@ -93,6 +93,11 @@ pub(super) fn atom_expr(p: &mut Parser, r: Restrictions) -> Option<(CompletedMar
             }
         }
 
+        ASYNC_KW if la == L_CURLY => {
+            let m = p.start();
+            p.bump();
+            block_expr(p, Some(m))
+        }
         MATCH_KW => match_expr(p),
         UNSAFE_KW if la == L_CURLY => {
             let m = p.start();
diff --git a/crates/ra_parser/src/grammar/items.rs b/crates/ra_parser/src/grammar/items.rs
index ab9d2de90..91f9bfe8a 100644
--- a/crates/ra_parser/src/grammar/items.rs
+++ b/crates/ra_parser/src/grammar/items.rs
@@ -86,9 +86,14 @@ pub(super) fn maybe_item(p: &mut Parser, flavor: ItemFlavor) -> MaybeItem {
     }
 
     let mut has_mods = false;
+
     // modifiers
-    has_mods |= p.eat(CONST_KW);
 
+    has_mods |= p.eat(CONST_KW);
+    if p.at(ASYNC_KW) && p.nth(1) != L_CURLY {
+        p.eat(ASYNC_KW);
+        has_mods = true;
+    }
     // test_err unsafe_block_in_mod
     // fn foo(){} unsafe { } fn bar(){}
     if p.at(UNSAFE_KW) && p.nth(1) != L_CURLY {
@@ -110,6 +115,9 @@ pub(super) fn maybe_item(p: &mut Parser, flavor: ItemFlavor) -> MaybeItem {
 
     // items
     let kind = match p.current() {
+        // test async_fn
+        // async fn foo() {}
+
         // test extern_fn
         // extern fn foo() {}
 
-- 
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