From 9b2a89b7f172eb677adbb0fb80d7f2d8a2158fa9 Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Wed, 20 Jun 2018 00:08:14 +0300
Subject: [PATCH] hygiene: Give `Debug` impls to hygiene structures

---
 src/libsyntax_pos/hygiene.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/libsyntax_pos/hygiene.rs b/src/libsyntax_pos/hygiene.rs
index 0ca42169b8ec..6cf6f6f17c1d 100644
--- a/src/libsyntax_pos/hygiene.rs
+++ b/src/libsyntax_pos/hygiene.rs
@@ -29,7 +29,7 @@ use std::fmt;
 #[derive(Clone, Copy, PartialEq, Eq, Default, PartialOrd, Ord, Hash)]
 pub struct SyntaxContext(pub(super) u32);
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub struct SyntaxContextData {
     pub outer_mark: Mark,
     pub prev_ctxt: SyntaxContext,
@@ -40,13 +40,14 @@ pub struct SyntaxContextData {
 #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, RustcEncodable, RustcDecodable)]
 pub struct Mark(u32);
 
+#[derive(Debug)]
 struct MarkData {
     parent: Mark,
     kind: MarkKind,
     expn_info: Option<ExpnInfo>,
 }
 
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
 pub enum MarkKind {
     Modern,
     Builtin,
@@ -147,6 +148,7 @@ impl Mark {
     }
 }
 
+#[derive(Debug)]
 pub struct HygieneData {
     marks: Vec<MarkData>,
     syntax_contexts: Vec<SyntaxContextData>,