compiler/rustc_builtin_macros/src/deriving/bounds.rs

   1 use crate::deriving::generic::ty::*;
   2 use crate::deriving::generic::*;
   3 use crate::deriving::path_std;
   4
   5 use rustc_ast::MetaItem;
   6 use rustc_expand::base::{Annotatable, ExtCtxt};
   7 use rustc_span::Span;
   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     is_const: bool,
  16 ) {
  17     let trait_def = TraitDef {
  18         span,
  19         path: path_std!(marker::Copy),
  20         skip_path_as_bound: false,
  21         additional_bounds: Vec::new(),
  22         generics: Bounds::empty(),
  23         supports_unions: true,
  24         methods: Vec::new(),
  25         associated_types: Vec::new(),
  26         is_const,
  27     };
  28
  29     trait_def.expand(cx, mitem, item, push);
  30 }