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InMemoryTrieDB

Struct InMemoryTrieDB 

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pub struct InMemoryTrieDB { /* private fields */ }
Expand description

InMemory implementation for the TrieDB trait, with get and put operations.

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impl InMemoryTrieDB

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pub const fn new(map: NodeMap) -> Self

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pub const fn new_with_prefix(map: NodeMap, prefix: Nibbles) -> Self

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pub fn new_empty() -> Self

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pub fn inner(&self) -> NodeMap

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impl InMemoryTrieDB

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pub fn from_nodes( root_hash: H256, state_nodes: &BTreeMap<H256, Node>, ) -> Result<Self, TrieError>

Trait Implementations§

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impl Default for InMemoryTrieDB

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl TrieDB for InMemoryTrieDB

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fn get(&self, key: Nibbles) -> Result<Option<Vec<u8>>, TrieError>

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fn put_batch( &self, key_values: Vec<(Nibbles, Vec<u8>)>, ) -> Result<(), TrieError>

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fn multi_get(&self, keys: &[Nibbles]) -> Vec<Result<Option<Vec<u8>>, TrieError>>

Retrieves multiple values by key. Returns results in the same order as the input keys. Backends that support batched reads should override this for better throughput. Default impl is equivalent to N independent get calls.
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fn put_batch_no_alloc( &self, key_values: &[(Nibbles, Node)], ) -> Result<(), TrieError>

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fn put(&self, key: Nibbles, value: Vec<u8>) -> Result<(), TrieError>

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fn commit(&self) -> Result<(), TrieError>

Commits any pending changes to the underlying storage For read-only or in-memory implementations, this is a no-op
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fn flatkeyvalue_computed(&self, _key: Nibbles) -> bool

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T, U> ExactFrom<T> for U
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fn exact_from(value: T) -> U

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impl<T, U> ExactInto<U> for T
where U: ExactFrom<T>,

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fn exact_into(self) -> U

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impl<T> From<T> for T

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Returns the argument unchanged.

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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Returns the layout of the type.
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impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
where T: SharedNiching<N1, N2>, N1: Niching<T>, N2: Niching<T>,

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unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool

Returns whether the given value has been niched. Read more
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fn resolve_niched(out: Place<NichedOption<T, N1>>)

Writes data to out indicating that a T is niched.
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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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type Metadata = ()

The metadata type for pointers and references to this type.
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