From 1de5fdb5babf74f729b008585a8aaf16110bb1fd Mon Sep 17 00:00:00 2001
From: Camille GILLOT <gillot.camille@gmail.com>
Date: Sun, 10 Nov 2019 17:19:08 +0100
Subject: Add StableHashingContextLike to HashStable_Generic derive.

---
 src/libsyntax/lib.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/libsyntax/lib.rs')

diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index e3eca75dfe7..8f091c06b4b 100644
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -110,3 +110,8 @@ pub mod print {
 }
 
 pub mod early_buffered_lints;
+
+/// Requirements for a `StableHashingContext` to be used in this crate.
+/// This is a hack to allow using the `HashStable_Generic` derive macro
+/// instead of implementing everything in librustc.
+pub trait StableHashingContextLike {}
-- 
cgit 1.4.1-3-g733a5