| use crate::deriving::path_std; |
| use crate::deriving::generic::*; |
| use crate::deriving::generic::ty::*; |
| |
| use syntax::ast::MetaItem; |
| use syntax::ext::base::{Annotatable, ExtCtxt}; |
| use syntax_pos::Span; |
| |
| pub fn expand_deriving_unsafe_bound(cx: &mut ExtCtxt<'_>, |
| span: Span, |
| _: &MetaItem, |
| _: &Annotatable, |
| _: &mut dyn FnMut(Annotatable)) { |
| cx.span_err(span, "this unsafe trait should be implemented explicitly"); |
| } |
| |
| pub fn expand_deriving_copy(cx: &mut ExtCtxt<'_>, |
| span: Span, |
| mitem: &MetaItem, |
| item: &Annotatable, |
| push: &mut dyn FnMut(Annotatable)) { |
| let trait_def = TraitDef { |
| span, |
| attributes: Vec::new(), |
| path: path_std!(cx, marker::Copy), |
| additional_bounds: Vec::new(), |
| generics: LifetimeBounds::empty(), |
| is_unsafe: false, |
| supports_unions: true, |
| methods: Vec::new(), |
| associated_types: Vec::new(), |
| }; |
| |
| trait_def.expand(cx, mitem, item, push); |
| } |