rust/src/test/rustdoc/empty-section.rs
Niko Matsakis fda3378e3f introduce negative_impls feature gate and document
They used to be covered by `optin_builtin_traits` but negative impls
are now applicable to all traits, not just auto traits.

This also adds docs in the unstable book for the current state of auto traits.
2020-03-26 06:52:55 -04:00

13 lines
301 B
Rust

#![crate_name = "foo"]
#![feature(negative_impls)]
pub struct Foo;
// @has foo/struct.Foo.html
// @!has - 'Auto Trait Implementations'
impl !Send for Foo {}
impl !Sync for Foo {}
impl !std::marker::Unpin for Foo {}
impl !std::panic::RefUnwindSafe for Foo {}
impl !std::panic::UnwindSafe for Foo {}