Enum rustc_expand::base::ExpandResult
source · pub enum ExpandResult<T, U> {
Ready(T),
Retry(U),
}Expand description
Result of an expansion that may need to be retried.
Consider using this for non-MultiItemModifier expanders as well.
Variants
Ready(T)
Expansion produced a result (possibly dummy).
Retry(U)
Expansion could not produce a result and needs to be retried.
Auto Trait Implementations
impl<T, U> RefUnwindSafe for ExpandResult<T, U>where
T: RefUnwindSafe,
U: RefUnwindSafe,
impl<T, U> Send for ExpandResult<T, U>where
T: Send,
U: Send,
impl<T, U> Sync for ExpandResult<T, U>where
T: Sync,
U: Sync,
impl<T, U> Unpin for ExpandResult<T, U>where
T: Unpin,
U: Unpin,
impl<T, U> UnwindSafe for ExpandResult<T, U>where
T: UnwindSafe,
U: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Layout
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.