/// Pins a value on the stack.
////// ```
/// # #![feature(pin)]
/// # use pin_utils::pin_mut;
/// # use core::pin::Pin;
/// # struct Foo {}
/// let foo = Foo { /* ... */ };
/// pin_mut!(foo);
/// let _: Pin<&mut Foo> = foo;
/// ```
#[macro_export]macro_rules!pin_mut{($($x:ident),*)=>{$(// Move the value to ensure that it is owned
letmut$x=$x;// Shadow the original binding so that it can't be directly accessed
// ever again.
#[allow(unused_mut)]letmut$x=unsafe{$crate::core_reexport::pin::Pin::new_unchecked(&mut$x)};)*}}