diff options
Diffstat (limited to 'src/libsyntax/ext/derive.rs')
| -rw-r--r-- | src/libsyntax/ext/derive.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libsyntax/ext/derive.rs b/src/libsyntax/ext/derive.rs index 50cec9e7908..6df369133d0 100644 --- a/src/libsyntax/ext/derive.rs +++ b/src/libsyntax/ext/derive.rs @@ -58,7 +58,10 @@ pub fn add_derived_markers<T>(cx: &mut ExtCtxt<'_>, span: Span, traits: &[ast::P call_site: span, def_site: None, format: ExpnFormat::MacroAttribute(Symbol::intern(&pretty_name)), - allow_internal_unstable: true, + allow_internal_unstable: Some(vec![ + Symbol::intern("rustc_attrs"), + Symbol::intern("structural_match"), + ].into()), allow_internal_unsafe: false, local_inner_macros: false, edition: hygiene::default_edition(), |