From c1e897907ab7be25fe302a0ccd7a927ff0410203 Mon Sep 17 00:00:00 2001
From: Paul Lietar <paul@lietar.net>
Date: Tue, 5 Sep 2017 02:22:17 +0100
Subject: [PATCH] Add suport for extern types.

See https://github.com/rust-lang/rust/pull/44295
---
 src/items.rs           | 6 ++++--
 tests/source/extern.rs | 5 +++++
 tests/target/extern.rs | 4 ++++
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/items.rs b/src/items.rs
index 25ed376f277..82056c59dac 100644
--- a/src/items.rs
+++ b/src/items.rs
@@ -2740,8 +2740,10 @@ fn rewrite(&self, context: &RewriteContext, shape: Shape) -> Option<String> {
                     format!("{}{}{};", prefix, sep, ty_str)
                 })
             }
-            // FIXME(#2097) support extern types.
-            ast::ForeignItemKind::Ty => unimplemented!(),
+            ast::ForeignItemKind::Ty => {
+                let vis = format_visibility(&self.vis);
+                Some(format!("{}type {};", vis, self.ident))
+            }
         }?;
 
         let missing_span = if self.attrs.is_empty() {
diff --git a/tests/source/extern.rs b/tests/source/extern.rs
index 5546b217226..bc82bcd61db 100644
--- a/tests/source/extern.rs
+++ b/tests/source/extern.rs
@@ -25,6 +25,11 @@
         fn DMR_GetDevice(pHDev: *mut HDEV, searchMode: DeviceSearchMode, pSearchString: *const c_char, devNr: c_uint, wildcard: c_char) -> TDMR_ERROR;
         
     fn quux() -> (); // Post comment
+
+  pub      type
+      Foo;
+
+          type   Bar;
 }
 
 extern "Rust" { static ext:  u32;
diff --git a/tests/target/extern.rs b/tests/target/extern.rs
index c0601a4d0e1..1d49b76dc42 100644
--- a/tests/target/extern.rs
+++ b/tests/target/extern.rs
@@ -34,6 +34,10 @@ fn DMR_GetDevice(
     ) -> TDMR_ERROR;
 
     fn quux() -> (); // Post comment
+
+    pub type Foo;
+
+    type Bar;
 }
 
 extern "Rust" {
-- 
2.44.0