compiler/rustc_builtin_macros/src/deriving/bounds.rs

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