Enum fabric_support::storage::child::ChildType[]

#[repr(u32)]pub enum ChildType {
    ParentKeyId,
}

Type of child. It does not strictly define different child type, it can also be related to technical consideration or api variant.

Variants

ParentKeyId

If runtime module ensures that the child key is a unique id that will only be used once, its parent key is used as a child trie unique id.

Implementations

impl ChildType

pub fn new(repr: u32) -> Option<ChildType>

Try to get a child type from its u32 representation.

pub fn from_prefixed_key(
    storage_key: &'a PrefixedStorageKey
) -> Option<(ChildType, &'a [u8])>

Transform a prefixed key into a tuple of the child type and the unprefixed representation of the key.

pub fn parent_prefix(&self) -> &'static [u8]

Notable traits for &'_ [u8]

impl<'_> Read for &'_ [u8]impl<'_> Write for &'_ mut [u8]

Returns the location reserved for this child trie in their parent trie if there is one.

Trait Implementations

impl Clone for ChildType

impl Copy for ChildType

impl Debug for ChildType

impl PartialEq<ChildType> for ChildType

impl StructuralPartialEq for ChildType

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
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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.

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type Owned = T

The resulting type after obtaining ownership.

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The type returned in the event of a conversion error.

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

The type returned in the event of a conversion error.

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