diff options
Diffstat (limited to 'compiler/rustc_builtin_macros/src/deriving')
| -rw-r--r-- | compiler/rustc_builtin_macros/src/deriving/mod.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_builtin_macros/src/deriving/mod.rs b/compiler/rustc_builtin_macros/src/deriving/mod.rs index 1651180817b..3c8bf12b3d4 100644 --- a/compiler/rustc_builtin_macros/src/deriving/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/mod.rs @@ -145,7 +145,8 @@ fn inject_impl_of_structural_trait( *default = None; ast::GenericArg::Type(cx.ty_ident(span, param.ident)) } - ast::GenericParamKind::Const { ty: _, kw_span: _ } => { + ast::GenericParamKind::Const { ty: _, kw_span: _, default } => { + *default = None; ast::GenericArg::Const(cx.const_ident(span, param.ident)) } }) |