From 5db385064e26202d71dc3801dee8a41a6ce28a9b Mon Sep 17 00:00:00 2001
From: Michael Howell <michael@notriddle.com>
Date: Wed, 6 Feb 2019 12:27:01 -0700
Subject: [PATCH] Document the one TyKind that isn't documented

This is especially confusing since the name `Foreign`
and the name `extern type` are so different. I deduced
that they're the same by consulting git-blame.
---
 src/librustc/ty/sty.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/librustc/ty/sty.rs b/src/librustc/ty/sty.rs
index 671a0fc2d5d..6d49da5d002 100644
--- a/src/librustc/ty/sty.rs
+++ b/src/librustc/ty/sty.rs
@@ -107,6 +107,7 @@ pub enum TyKind<'tcx> {
     /// definition and not a concrete use of it.
     Adt(&'tcx AdtDef, &'tcx Substs<'tcx>),
 
+    /// An unsized FFI type that is opaque to Rust. Written as `extern type T`.
     Foreign(DefId),
 
     /// The pointee of a string slice. Written as `str`.
-- 
GitLab