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//@ check-pass
//@ compile-flags: --crate-type=lib
#![feature(decl_macro)]
#![feature(lang_items)]
#![feature(no_core)]
#![feature(rustc_attrs)]
#![no_core]
#[rustc_builtin_macro]
macro derive() {}
#[rustc_builtin_macro(Default, attributes(default))]
macro Default() {}
mod default {
pub trait Default {
fn default() -> Self;
}
impl Default for u8 {
fn default() -> u8 {
0
}
}
}
#[lang = "sized"]
trait Sized {}
#[derive(Default)]
enum S {
#[default] // OK
Foo,
}
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