pub struct CurrentEra;

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impl CurrentEra

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pub fn get() -> EraIndex

Returns the value of this parameter type.

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impl CurrentEra

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pub fn set(t: EraIndex)

Set the internal value.

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pub fn mutate<R, F: FnOnce(&mut EraIndex) -> R>(mutate: F) -> R

Mutate the internal value in place.

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pub fn take() -> EraIndex

Get current value and replace with initial value of the parameter type.

Trait Implementations§

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impl<_I: From<EraIndex>> Get<_I> for CurrentEra

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fn get() -> _I

Return the current value.
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impl TypedGet for CurrentEra

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type Type = u32

The type which is returned.
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fn get() -> EraIndex

Return the current value.

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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fn checked_from<T>(t: T) -> Option<Self>where Self: TryFrom<T>,

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Returns the argument unchanged.

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Calls U::from(self).

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Cast reference.
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Cast reference.
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Cast mutable reference.
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Cast mutable reference.
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Get a mutable reference to the inner from the outer.

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const ALIGN: usize = mem::align_of::<T>()

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type Init = T

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type Output = T

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impl<SS, SP> SupersetOf<SS> for SPwhere SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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Checks if self is actually part of its subset T (and can be converted to it).
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Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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type Error = Infallible

The type returned in the event of a conversion error.
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The counterpart to unchecked_from.
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