[][src]Enum sp_storage::ChildInfo

pub enum ChildInfo {

Information related to a child state.



This is the one used by default.


impl ChildInfo[src]

pub fn new_default(storage_key: &[u8]) -> Self[src]

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>) -> Self[src]

Same as new_default but with Vec<u8> as input.

pub fn try_update(&mut self, other: &ChildInfo) -> bool[src]

Try to update with another instance, return false if both instance are not compatible.

pub fn keyspace(&self) -> &[u8][src]

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][src]

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[src]

Return a the full location in the direct parent of this trie.

pub fn into_prefixed_storage_key(self) -> PrefixedStorageKey[src]

Returns a the full location in the direct parent of this trie.

pub fn child_type(&self) -> ChildType[src]

Returns the type for this child info.

Trait Implementations

impl Clone for ChildInfo[src]

impl Debug for ChildInfo[src]

impl Eq for ChildInfo[src]

impl Hash for ChildInfo[src]

impl Ord for ChildInfo[src]

impl PartialEq<ChildInfo> for ChildInfo[src]

impl PartialOrd<ChildInfo> for ChildInfo[src]

impl StructuralEq for ChildInfo[src]

impl StructuralPartialEq for ChildInfo[src]

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

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

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

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

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.