From 29ed491743df4dbab25fec6f725e6f3b3ace860b Mon Sep 17 00:00:00 2001
From: varkor <github@varkor.com>
Date: Wed, 13 Mar 2019 23:39:03 +0000
Subject: [PATCH] Add `GenericArg`

Co-Authored-By: Gabriel Smith <yodaldevoid@users.noreply.github.com>
---
 src/librustdoc/clean/mod.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 0f976c11938c..8581c40c843e 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -3247,6 +3247,23 @@ impl Clean<Path> for hir::Path {
     }
 }
 
+#[derive(Clone, RustcEncodable, RustcDecodable, PartialEq, Eq, Debug, Hash)]
+pub enum GenericArg {
+    Lifetime(Lifetime),
+    Type(Type),
+    Const(Constant),
+}
+
+impl fmt::Display for GenericArg {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            GenericArg::Lifetime(lt) => lt.fmt(f),
+            GenericArg::Type(ty) => ty.fmt(f),
+            GenericArg::Const(ct) => ct.fmt(f),
+        }
+    }
+}
+
 #[derive(Clone, RustcEncodable, RustcDecodable, PartialEq, Eq, Debug, Hash)]
 pub enum GenericArgs {
     AngleBracketed {