Syntactically permit unsafety on mods

1 files changed, 9 insertions, 2 deletions

diff --git a/compiler/rustc_ast_pretty/src/pprust.rs b/compiler/rustc_ast_pretty/src/pprust.rs
index 9743a000429..955d1677647 100644
--- a/compiler/rustc_ast_pretty/src/pprust.rs
+++ b/compiler/rustc_ast_pretty/src/pprust.rs
@@ -1139,7 +1139,11 @@ impl<'a> State<'a> {
                 self.print_fn_full(sig, item.ident, gen, &item.vis, def, body, &item.attrs);
             }
             ast::ItemKind::Mod(ref _mod) => {
-                self.head(visibility_qualified(&item.vis, "mod"));
+                self.head(to_string(|s| {
+                    s.print_visibility(&item.vis);
+                    s.print_unsafety(_mod.unsafety);
+                    s.word("mod");
+                }));
                 self.print_ident(item.ident);
 
                 if _mod.inline || self.is_expanded {
@@ -1154,7 +1158,10 @@ impl<'a> State<'a> {
                 }
             }
             ast::ItemKind::ForeignMod(ref nmod) => {
-                self.head("extern");
+                self.head(to_string(|s| {
+                    s.print_unsafety(nmod.unsafety);
+                    s.word("extern");
+                }));
                 if let Some(abi) = nmod.abi {
                     self.print_literal(&abi.as_lit());
                     self.nbsp();