Enum frame_metadata::v14::StorageHasher

pub enum StorageHasher {
    Blake2_128,
    Blake2_256,
    Blake2_128Concat,
    Twox128,
    Twox256,
    Twox64Concat,
    Identity,
}

Hasher used by storage maps

Variants

Blake2_128

128-bit Blake2 hash.

Blake2_256

256-bit Blake2 hash.

Blake2_128Concat

Multiple 128-bit Blake2 hashes concatenated.

Twox128

128-bit XX hash.

Twox256

256-bit XX hash.

Twox64Concat

Multiple 64-bit XX hashes concatenated.

Identity

Identity hashing (no hashing).

Trait Implementations

impl Clone for StorageHasher

fn clone(&self) -> StorageHasher

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StorageHasher

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Decode for StorageHasher

fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>(
    input: &mut I,
    dst: &mut MaybeUninit<Self>
) -> Result<DecodeFinished, Error>where
    I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>where
    I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for StorageHasher

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
    &self,
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> Rwhere
    F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl PartialEq<StorageHasher> for StorageHasher

fn eq(&self, other: &StorageHasher) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for StorageHasher

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where
    __S: Serializer,

Serialize this value into the given Serde serializer.

impl EncodeLike<StorageHasher> for StorageHasher

impl Eq for StorageHasher

impl StructuralEq for StorageHasher

impl StructuralPartialEq for StorageHasher