Struct frame_system::BlockHash[][src]

pub struct BlockHash<T: Trait>(_);

Map of block numbers to block hashes.

Trait Implementations

impl<T: Trait> StorageMap<<T as Trait>::BlockNumber, <T as Trait>::Hash> for BlockHash<T>[src]

type Query = T::Hash

The type that get/take returns.

type Hasher = Twox64Concat

Hasher. Used for generating final key.

impl<T: Trait> StoragePrefixedMap<<T as Trait>::Hash> for BlockHash<T>[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for BlockHash<T> where
    T: RefUnwindSafe

impl<T> Send for BlockHash<T> where
    T: Send

impl<T> Sync for BlockHash<T> where
    T: Sync

impl<T> Unpin for BlockHash<T> where
    T: Unpin

impl<T> UnwindSafe for BlockHash<T> where
    T: UnwindSafe

Blanket Implementations

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

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

impl<T> Instrument for T[src]

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

impl<T, Outer> IsWrappedBy<Outer> for T where
    T: From<Outer>,
    Outer: AsRef<T> + AsMut<T> + From<T>, 
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pub fn from_ref(outer: &Outer) -> &T[src]

Get a reference to the inner from the outer.

pub 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
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impl<T> Pointable for T[src]

type Init = T

The type for initializers.

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

type Output = T

Should always be Self

impl<T> SaturatedConversion for T[src]

impl<K, V, G> StorageMap<K, V> for G where
    K: FullEncode,
    V: FullCodec,
    G: StorageMap<K, V>, 
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type Query = <G as StorageMap<K, V>>::Query

The type that get/take return.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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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>, 
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impl<T, S> UniqueSaturatedInto<T> for S where
    T: Bounded,
    S: TryInto<T>, 
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impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 
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