| //@ force-host | |
| //@ no-prefer-dynamic | |
| #![crate_type = "proc-macro"] | |
| #![feature(proc_macro_quote)] | |
| extern crate proc_macro; | |
| use proc_macro::{quote, Ident, Span, TokenStream, TokenTree}; | |
| #[proc_macro_attribute] | |
| pub fn struct_with_bound(_: TokenStream, _: TokenStream) -> TokenStream { | |
| let crate_ident = TokenTree::Ident(Ident::new("crate", Span::call_site())); | |
| let trait_ident = TokenTree::Ident(Ident::new("MyTrait", Span::call_site())); | |
| quote!( | |
| struct Foo<T: $crate_ident::$trait_ident> {} | |
| ) | |
| } |