[−][src]Struct frame_support::traits::FilterStackGuard

pub struct FilterStackGuard<F: FilterStack<T>, T>(_);
[−]

Guard type for pushing a constraint to a FilterStack and popping when dropped.

Implementations

impl<F: FilterStack<T>, T> FilterStackGuard<F, T>[src][−]

pub fn new(constraint: impl Fn(&T) -> bool + 'static) -> Self[src][−]

Create a new instance, adding a new constraint onto the filter T, and popping it when this instance is dropped.

Trait Implementations

impl<F: FilterStack<T>, T> Drop for FilterStackGuard<F, T>[src][+]

Auto Trait Implementations

impl<F, T> RefUnwindSafe for FilterStackGuard<F, T> where
    F: RefUnwindSafe,
    T: RefUnwindSafe, 

impl<F, T> Send for FilterStackGuard<F, T> where
    F: Send,
    T: Send, 

impl<F, T> Sync for FilterStackGuard<F, T> where
    F: Sync,
    T: Sync, 

impl<F, T> Unpin for FilterStackGuard<F, T> where
    F: Unpin,
    T: Unpin, 

impl<F, T> UnwindSafe for FilterStackGuard<F, T> where
    F: UnwindSafe,
    T: UnwindSafe, 

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src][+]

impl<T> Borrow<T> for T where
    T: ?Sized, [src][+]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src][+]

impl<T> CheckedConversion for T[src][+]

impl<T> From<T> for T[src][+]

impl<T, U> Into<U> for T where
    U: From<T>, [src][+]

impl<T> IsType<T> for T[src][+]

impl<T, Outer> IsWrappedBy<Outer> for T where
    Outer: AsRef<T> + AsMut<T> + From<T>,
    T: From<Outer>, [src][+]

fn from_ref(outer: &Outer) -> &T[src][−]

Get a reference to the inner from the outer.

fn from_mut(outer: &mut Outer) -> &mut T[src][−]

Get a mutable reference to the inner from the outer.

impl<T> MaybeRefUnwindSafe for T where
    T: RefUnwindSafe, [src]

impl<T> Same<T> for T[src]

type Output = T

Should always be Self

impl<T> SaturatedConversion for T[src][+]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src][+]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>, [src][+]

impl<T, S> UniqueSaturatedInto<T> for S where
    S: TryInto<T>,
    T: Bounded, [src][+]

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, [src][+]