Struct LockStateGuard

struct LockStateGuard(LockState);

A container that restores a LockState when dropped.

This type serves two purposes:

• Operations like RwLockWriteGuard::downgrade would like to be able to destructure lock guards and reassemble their pieces into new guards, but if the guard type itself implements Drop, we can’t destructure it without unsafe code or pointless Options whose state is almost always statically known.

• We can just implement Drop for this type once, and then use it in lock guards, rather than implementing Drop separately for each guard type.

Tuple Fields

0: LockState

Trait Implementations

impl Drop for LockStateGuard

fn drop(&mut self)

Executes the destructor for this type.