[−]Enum frame_support::storage::child::ChildInfo
Information related to a child state.
Variants
This is the one used by default.
Methods
impl ChildInfo
pub fn new_default(storage_key: &[u8]) -> ChildInfo
Instantiates child information for a default child trie
of kind ChildType::ParentKeyId
, using an unprefixed parent
storage key.
pub fn new_default_from_vec(storage_key: Vec<u8>) -> ChildInfo
Same as new_default
but with Vec<u8>
as input.
pub fn try_update(&mut self, other: &ChildInfo) -> bool
Try to update with another instance, return false if both instance are not compatible.
pub fn keyspace(&self) -> &[u8]
Returns byte sequence (keyspace) that can be use by underlying db to isolate keys.
This is a unique id of the child trie. The collision resistance of this value
depends on the type of child info use. For ChildInfo::Default
it is and need to be.
pub fn storage_key(&self) -> &[u8]
Returns a reference to the location in the direct parent of this trie but without the common prefix for this kind of child trie.
pub fn prefixed_storage_key(&self) -> PrefixedStorageKey
Return a the full location in the direct parent of this trie.
pub fn into_prefixed_storage_key(self) -> PrefixedStorageKey
Returns a the full location in the direct parent of this trie.
pub fn child_type(&self) -> ChildType
Returns the type for this child info.
Trait Implementations
impl Clone for ChildInfo
fn clone(&self) -> ChildInfo
fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for ChildInfo
impl Eq for ChildInfo
impl Hash for ChildInfo
fn hash<__H>(&self, state: &mut __H) where
__H: Hasher,
__H: Hasher,
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
impl Ord for ChildInfo
fn cmp(&self, other: &ChildInfo) -> Ordering
#[must_use]fn max(self, other: Self) -> Self
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#[must_use]fn min(self, other: Self) -> Self
1.21.0[src]
#[must_use]fn clamp(self, min: Self, max: Self) -> Self
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impl PartialEq<ChildInfo> for ChildInfo
impl PartialOrd<ChildInfo> for ChildInfo
fn partial_cmp(&self, other: &ChildInfo) -> Option<Ordering>
fn lt(&self, other: &ChildInfo) -> bool
fn le(&self, other: &ChildInfo) -> bool
fn gt(&self, other: &ChildInfo) -> bool
fn ge(&self, other: &ChildInfo) -> bool
impl StructuralEq for ChildInfo
impl StructuralPartialEq for ChildInfo
Auto Trait Implementations
impl RefUnwindSafe for ChildInfo
impl Send for ChildInfo
impl Sync for ChildInfo
impl Unpin for ChildInfo
impl UnwindSafe for ChildInfo
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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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>,
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Self: TryFrom<T>,
fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,
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Self: TryInto<T>,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
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Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
fn from_ref(outer: &Outer) -> &T
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Get a reference to the inner from the outer.
fn from_mut(outer: &mut Outer) -> &mut T
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Get a mutable reference to the inner from the outer.
impl<T> MaybeDebug for T where
T: Debug,
T: Debug,
impl<T> MaybeDebug for T where
T: Debug,
T: Debug,
impl<T> MaybeHash for T where
T: Hash,
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T: Hash,
impl<T> MaybeHash for T where
T: Hash,
T: Hash,
impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> Member for T where
T: 'static + Clone + PartialEq<T> + Eq + Send + Sync + Debug,
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T: 'static + Clone + PartialEq<T> + Eq + Send + Sync + Debug,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> SaturatedConversion for T
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fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,
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Self: UniqueSaturatedFrom<T>,
fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,
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Self: UniqueSaturatedInto<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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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>
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impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
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T: UncheckedFrom<S>,
fn unchecked_into(self) -> T
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impl<T, S> UniqueSaturatedInto<T> for S where
S: TryInto<T>,
T: Bounded,
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S: TryInto<T>,
T: Bounded,
fn unique_saturated_into(self) -> T
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,