src/librustc_builtin_macros/deriving/bounds.rs

   1 use crate::deriving::generic::ty::*;
   2 use crate::deriving::generic::*;
   3 use crate::deriving::path_std;
   4
   5 use rustc_expand::base::{Annotatable, ExtCtxt};
   6 use rustc_span::Span;
   7 use syntax::ast::MetaItem;
   8
   9 pub fn expand_deriving_copy(
  10     cx: &mut ExtCtxt<'_>,
  11     span: Span,
  12     mitem: &MetaItem,
  13     item: &Annotatable,
  14     push: &mut dyn FnMut(Annotatable),
  15 ) {
  16     let trait_def = TraitDef {
  17         span,
  18         attributes: Vec::new(),
  19         path: path_std!(cx, marker::Copy),
  20         additional_bounds: Vec::new(),
  21         generics: LifetimeBounds::empty(),
  22         is_unsafe: false,
  23         supports_unions: true,
  24         methods: Vec::new(),
  25         associated_types: Vec::new(),
  26     };
  27
  28     trait_def.expand(cx, mitem, item, push);
  29 }