From cacb32d88aa27b8e671173571325756890941b06 Mon Sep 17 00:00:00 2001
From: csmoe <35686186+csmoe@users.noreply.github.com>
Date: Mon, 24 Sep 2018 11:42:01 +0800
Subject: reject impl keyword in impl header

---
 crates/ra_syntax/src/grammar/items/traits.rs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/crates/ra_syntax/src/grammar/items/traits.rs b/crates/ra_syntax/src/grammar/items/traits.rs
index c21cfb1a9..25b6cb66b 100644
--- a/crates/ra_syntax/src/grammar/items/traits.rs
+++ b/crates/ra_syntax/src/grammar/items/traits.rs
@@ -54,8 +54,16 @@ pub(super) fn impl_item(p: &mut Parser) {
 
     // test impl_item_neg
     // impl !Send for X {}
-    p.eat(EXCL);
-    types::type_(p);
+    if p.at(IMPL_KW) {
+        p.error("expected type");
+    } else {
+        p.eat(EXCL);
+        if p.at(IMPL_KW) {
+            p.error("expected type");
+        } else {
+            types::type_(p);
+        }
+    }
     if p.eat(FOR_KW) {
         types::type_(p);
     }
-- 
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