From fe95cd2f4b3a722e023dc7bba8ff65136be441ca Mon Sep 17 00:00:00 2001
From: Mazdak Farrokhzad <twingoow@gmail.com>
Date: Wed, 30 Oct 2019 16:38:16 +0100
Subject: revamp pre-expansion gating infra

---
 src/libsyntax/parse/parser/generics.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src/libsyntax/parse/parser/generics.rs')

diff --git a/src/libsyntax/parse/parser/generics.rs b/src/libsyntax/parse/parser/generics.rs
index 51caae69c86..3c094750b4d 100644
--- a/src/libsyntax/parse/parser/generics.rs
+++ b/src/libsyntax/parse/parser/generics.rs
@@ -3,7 +3,8 @@ use super::{Parser, PResult};
 use crate::ast::{self, WhereClause, GenericParam, GenericParamKind, GenericBounds, Attribute};
 use crate::parse::token;
 use crate::source_map::DUMMY_SP;
-use crate::symbol::kw;
+
+use syntax_pos::symbol::{kw, sym};
 
 impl<'a> Parser<'a> {
     /// Parses bounds of a lifetime parameter `BOUND + BOUND + BOUND`, possibly with trailing `+`.
@@ -62,7 +63,7 @@ impl<'a> Parser<'a> {
         self.expect(&token::Colon)?;
         let ty = self.parse_ty()?;
 
-        self.sess.gated_spans.const_generics.borrow_mut().push(lo.to(self.prev_span));
+        self.sess.gated_spans.gate(sym::const_generics, lo.to(self.prev_span));
 
         Ok(GenericParam {
             ident,
-- 
cgit 1.4.1-3-g733a5