1//! Operators used to turn types into unsafe binders and back.
2
3/// Unwrap an unsafe binder into its underlying type.
4#[allow_internal_unstable(builtin_syntax)]
5#[unstable(feature = "unsafe_binders", issue = "130516")]
6pub macro unwrap_binder {
7 ($expr:expr) => {
8 builtin # unwrap_binder ( $expr )
9 },
10 ($expr:expr ; $ty:ty) => {
11 builtin # unwrap_binder ( $expr, $ty )
12 },
13}
14
15/// Wrap a type into an unsafe binder.
16#[allow_internal_unstable(builtin_syntax)]
17#[unstable(feature = "unsafe_binders", issue = "130516")]
18pub macro wrap_binder {
19 ($expr:expr) => {
20 builtin # wrap_binder ( $expr )
21 },
22 ($expr:expr ; $ty:ty) => {
23 builtin # wrap_binder ( $expr, $ty )
24 },
25}
26