From adb96ec64b8d5e8cff191315668a5bfe0480909c Mon Sep 17 00:00:00 2001
From: Esteban Küber <esteban@kuber.com.ar>
Date: Sun, 28 Oct 2018 11:54:31 -0700
Subject: Provide specific label for patern parsing error

---
 src/libsyntax/ext/expand.rs          | 2 +-
 src/libsyntax/ext/quote.rs           | 2 +-
 src/libsyntax/ext/tt/macro_parser.rs | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/libsyntax/ext')

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 33b651e1b38..84e40a7e403 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -1030,7 +1030,7 @@ impl<'a> Parser<'a> {
                 }
             },
             AstFragmentKind::Ty => AstFragment::Ty(self.parse_ty()?),
-            AstFragmentKind::Pat => AstFragment::Pat(self.parse_pat()?),
+            AstFragmentKind::Pat => AstFragment::Pat(self.parse_pat(None)?),
         })
     }
 
diff --git a/src/libsyntax/ext/quote.rs b/src/libsyntax/ext/quote.rs
index 62bc9fae3b5..37800a334c6 100644
--- a/src/libsyntax/ext/quote.rs
+++ b/src/libsyntax/ext/quote.rs
@@ -419,7 +419,7 @@ pub fn parse_item_panic(parser: &mut Parser) -> Option<P<Item>> {
 }
 
 pub fn parse_pat_panic(parser: &mut Parser) -> P<Pat> {
-    panictry!(parser.parse_pat())
+    panictry!(parser.parse_pat(None))
 }
 
 pub fn parse_arm_panic(parser: &mut Parser) -> Arm {
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index 03a8376e763..d6c95a3d7c8 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -881,7 +881,7 @@ fn parse_nt<'a>(p: &mut Parser<'a>, sp: Span, name: &str) -> Nonterminal {
                 FatalError.raise();
             }
         },
-        "pat" => token::NtPat(panictry!(p.parse_pat())),
+        "pat" => token::NtPat(panictry!(p.parse_pat(None))),
         "expr" => token::NtExpr(panictry!(p.parse_expr())),
         "literal" => token::NtLiteral(panictry!(p.parse_literal_maybe_minus())),
         "ty" => token::NtTy(panictry!(p.parse_ty())),
-- 
cgit 1.4.1-3-g733a5