From 9f414a44a747edc7dc229e0eaf6fbda5e6ea10e1 Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Sat, 13 Feb 2016 15:51:27 +0300
Subject: Split ast::PatKind::Enum into tuple struct and path patterns

---
 src/libsyntax/ext/build.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/libsyntax/ext')

diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index 312154e5a8d..0eb42f17f68 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -827,7 +827,11 @@ impl<'a> AstBuilder for ExtCtxt<'a> {
         self.pat(span, pat)
     }
     fn pat_enum(&self, span: Span, path: ast::Path, subpats: Vec<P<ast::Pat>>) -> P<ast::Pat> {
-        let pat = PatKind::Enum(path, Some(subpats));
+        let pat = if subpats.is_empty() {
+            PatKind::Path(path)
+        } else {
+            PatKind::TupleStruct(path, Some(subpats))
+        };
         self.pat(span, pat)
     }
     fn pat_struct(&self, span: Span,
-- 
cgit 1.4.1-3-g733a5