[−][src]Struct frame_system::BlockHash
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.
fn module_prefix() -> &'static [u8][src]
fn storage_prefix() -> &'static [u8][src]
fn from_optional_value_to_query(v: Option<T::Hash>) -> Self::Query[src]
fn from_query_to_optional_value(v: Self::Query) -> Option<T::Hash>[src]
fn prefix_hash() -> Vec<u8>[src]
fn storage_map_final_key<KeyArg>(key: KeyArg) -> Vec<u8> where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
impl<T: Trait> StoragePrefixedMap<<T as Trait>::Hash> for BlockHash<T>[src]
fn module_prefix() -> &'static [u8][src]
fn storage_prefix() -> &'static [u8][src]
fn final_prefix() -> [u8; 32][src]
fn remove_all()[src]
fn iter_values() -> PrefixIterator<Value>[src]
fn translate_values<OldValue, TV>(translate_val: TV) -> Result<(), u32> where
OldValue: Decode,
TV: Fn(OldValue) -> Value, [src]
OldValue: Decode,
TV: Fn(OldValue) -> Value,
Auto Trait Implementations
impl<T> RefUnwindSafe for BlockHash<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> Send for BlockHash<T> where
T: Send,
T: Send,
impl<T> Sync for BlockHash<T> where
T: Sync,
T: Sync,
impl<T> Unpin for BlockHash<T> where
T: Unpin,
T: Unpin,
impl<T> UnwindSafe for BlockHash<T> where
T: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> CheckedConversion for T[src]
fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>, [src]
Self: TryFrom<T>,
fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>, [src]
Self: TryInto<T>,
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> IsType<T> for T[src]
fn from_ref(t: &T) -> &T[src]
fn into_ref(&self) -> &T[src]
fn from_mut(t: &mut T) -> &mut T[src]
fn into_mut(&mut self) -> &mut T[src]
impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>, [src]
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
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<K, V, G> IterableStorageMap<K, V> for G where
G: StorageMap<K, V>,
K: FullCodec,
V: FullCodec,
<G as StorageMap<K, V>>::Hasher: ReversibleStorageHasher, [src]
G: StorageMap<K, V>,
K: FullCodec,
V: FullCodec,
<G as StorageMap<K, V>>::Hasher: ReversibleStorageHasher,
type Iterator = StorageMapIterator<K, V, <G as StorageMap<K, V>>::Hasher>
The type that iterates over all (key, value).
fn iter() -> <G as IterableStorageMap<K, V>>::Iterator[src]
Enumerate all elements in the map.
fn drain() -> <G as IterableStorageMap<K, V>>::Iterator[src]
Enumerate all elements in the map.
fn translate<O, F>(f: F) where
F: Fn(K, O) -> Option<V>,
O: Decode, [src]
F: Fn(K, O) -> Option<V>,
O: Decode,
impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe, [src]
T: RefUnwindSafe,
impl<T> Same<T> for T[src]
type Output = T
Should always be Self
impl<T> SaturatedConversion for T[src]
fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>, [src]
Self: UniqueSaturatedFrom<T>,
fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>, [src]
Self: UniqueSaturatedInto<T>,
impl<K, V, G> StorageMap<K, V> for G where
G: StorageMap<K, V>,
K: FullEncode,
V: FullCodec, [src]
G: StorageMap<K, V>,
K: FullEncode,
V: FullCodec,
type Query = <G as StorageMap<K, V>>::Query
The type that get/take return.
fn hashed_key_for<KeyArg>(key: KeyArg) -> Vec<u8> where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
fn swap<KeyArg1, KeyArg2>(key1: KeyArg1, key2: KeyArg2) where
KeyArg1: EncodeLike<K>,
KeyArg2: EncodeLike<K>, [src]
KeyArg1: EncodeLike<K>,
KeyArg2: EncodeLike<K>,
fn contains_key<KeyArg>(key: KeyArg) -> bool where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
fn get<KeyArg>(key: KeyArg) -> <G as StorageMap<K, V>>::Query where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
fn insert<KeyArg, ValArg>(key: KeyArg, val: ValArg) where
KeyArg: EncodeLike<K>,
ValArg: EncodeLike<V>, [src]
KeyArg: EncodeLike<K>,
ValArg: EncodeLike<V>,
fn remove<KeyArg>(key: KeyArg) where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
fn mutate<KeyArg, R, F>(key: KeyArg, f: F) -> R where
F: FnOnce(&mut <G as StorageMap<K, V>>::Query) -> R,
KeyArg: EncodeLike<K>, [src]
F: FnOnce(&mut <G as StorageMap<K, V>>::Query) -> R,
KeyArg: EncodeLike<K>,
fn mutate_exists<KeyArg, R, F>(key: KeyArg, f: F) -> R where
F: FnOnce(&mut Option<V>) -> R,
KeyArg: EncodeLike<K>, [src]
F: FnOnce(&mut Option<V>) -> R,
KeyArg: EncodeLike<K>,
fn try_mutate<KeyArg, R, E, F>(key: KeyArg, f: F) -> Result<R, E> where
F: FnOnce(&mut <G as StorageMap<K, V>>::Query) -> Result<R, E>,
KeyArg: EncodeLike<K>, [src]
F: FnOnce(&mut <G as StorageMap<K, V>>::Query) -> Result<R, E>,
KeyArg: EncodeLike<K>,
fn try_mutate_exists<KeyArg, R, E, F>(key: KeyArg, f: F) -> Result<R, E> where
F: FnOnce(&mut Option<V>) -> Result<R, E>,
KeyArg: EncodeLike<K>, [src]
F: FnOnce(&mut Option<V>) -> Result<R, E>,
KeyArg: EncodeLike<K>,
fn take<KeyArg>(key: KeyArg) -> <G as StorageMap<K, V>>::Query where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
fn append<Item, EncodeLikeItem, EncodeLikeKey>(
key: EncodeLikeKey,
item: EncodeLikeItem
) where
EncodeLikeItem: EncodeLike<Item>,
EncodeLikeKey: EncodeLike<K>,
Item: Encode,
V: StorageAppend<Item>, [src]
key: EncodeLikeKey,
item: EncodeLikeItem
) where
EncodeLikeItem: EncodeLike<Item>,
EncodeLikeKey: EncodeLike<K>,
Item: Encode,
V: StorageAppend<Item>,
fn migrate_key<OldHasher, KeyArg>(key: KeyArg) -> Option<V> where
KeyArg: EncodeLike<K>,
OldHasher: StorageHasher, [src]
KeyArg: EncodeLike<K>,
OldHasher: StorageHasher,
fn decode_len<KeyArg>(key: KeyArg) -> Option<usize> where
KeyArg: EncodeLike<K>,
V: StorageDecodeLength, [src]
KeyArg: EncodeLike<K>,
V: StorageDecodeLength,
fn migrate_key_from_blake<KeyArg>(key: KeyArg) -> Option<V> where
KeyArg: EncodeLike<K>, [src]
KeyArg: EncodeLike<K>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>, [src]
T: UncheckedFrom<S>,
fn unchecked_into(self) -> T[src]
impl<T, S> UniqueSaturatedInto<T> for S where
S: TryInto<T>,
T: Bounded, [src]
S: TryInto<T>,
T: Bounded,
fn unique_saturated_into(self) -> T[src]
impl<V, T> VZip<V> for T where
V: MultiLane<T>, [src]
V: MultiLane<T>,