From 883e90dd81b207cc5d9e85c02f628432b7f8d65d Mon Sep 17 00:00:00 2001
From: Mazdak Farrokhzad <twingoow@gmail.com>
Date: Thu, 5 Mar 2020 03:24:58 +0100
Subject: [PATCH] simplify parse_inner_attributes

---
 src/librustc_parse/parser/attr.rs | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/librustc_parse/parser/attr.rs b/src/librustc_parse/parser/attr.rs
index bdd78e671a8..1e7f5b662f3 100644
--- a/src/librustc_parse/parser/attr.rs
+++ b/src/librustc_parse/parser/attr.rs
@@ -201,12 +201,8 @@ impl<'a> Parser<'a> {
         let mut attrs: Vec<ast::Attribute> = vec![];
         loop {
             match self.token.kind {
-                token::Pound => {
-                    // Don't even try to parse if it's not an inner attribute.
-                    if !self.look_ahead(1, |t| t == &token::Not) {
-                        break;
-                    }
-
+                // Only try to parse if it is an inner attribute (has `!`).
+                token::Pound if self.look_ahead(1, |t| t == &token::Not) => {
                     let attr = self.parse_attribute(true)?;
                     assert_eq!(attr.style, ast::AttrStyle::Inner);
                     attrs.push(attr);