Struct frame_support::traits::ClearFilterGuard

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pub struct ClearFilterGuard<F: FilterStack<T>, T>(_, _);

Expand description

Guard type for clearing all pushed constraints from a FilterStack and reinstating them when dropped.

Implementations

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impl<F: FilterStack<T>, T> ClearFilterGuard<F, T>

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pub fn new() -> Self

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

Trait Implementations

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impl<F: FilterStack<T>, T> Drop for ClearFilterGuard<F, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations

impl<F, T> RefUnwindSafe for ClearFilterGuard<F, T> where
T: RefUnwindSafe,
<F as FilterStack<T>>::Stack: RefUnwindSafe,

impl<F, T> Send for ClearFilterGuard<F, T> where
T: Send,
<F as FilterStack<T>>::Stack: Send,

impl<F, T> Sync for ClearFilterGuard<F, T> where
T: Sync,
<F as FilterStack<T>>::Stack: Sync,

impl<F, T> Unpin for ClearFilterGuard<F, T> where
T: Unpin,
<F as FilterStack<T>>::Stack: Unpin,

impl<F, T> UnwindSafe for ClearFilterGuard<F, T> where
T: UnwindSafe,
<F as FilterStack<T>>::Stack: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CheckedConversion for T

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fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

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fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

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impl<T> Downcast for T where
T: Any,

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pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘ
Notable traits for Box<W, Global>
`impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;`

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

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pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

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pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

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pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

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impl<T> DowncastSync for T where
T: Any + Send + Sync,

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pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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