From a137d00ce52e9db78bb803d1384fdf3a4c4e63ea Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Tue, 22 May 2018 08:01:21 -0700
Subject: rustc: Correctly pretty-print macro delimiters

This commit updates the `Mac_` AST structure to keep track of the delimiters
that it originally had for its invocation. This allows us to faithfully
pretty-print macro invocations not using parentheses (e.g. `vec![...]`). This in
turn helps procedural macros due to #43081.

Closes #50840
---
 src/libsyntax_ext/assert.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsyntax_ext/assert.rs')

diff --git a/src/libsyntax_ext/assert.rs b/src/libsyntax_ext/assert.rs
index 754f04a26e7..fe4d599d824 100644
--- a/src/libsyntax_ext/assert.rs
+++ b/src/libsyntax_ext/assert.rs
@@ -53,6 +53,7 @@ pub fn expand_assert<'cx>(
                 ),
             )).into()
         },
+        delim: MacDelimiter::Parenthesis,
     };
     let if_expr = cx.expr_if(
         sp,
-- 
cgit 1.4.1-3-g733a5