Trait HashableMetadata 

pub trait HashableMetadata<E: ExternalMemory>: AsMetadata<E>
where
    <Self as AsMetadata<E>>::TypeRegistry: HashableRegistry<E>,
{
    // Required method
    fn types_merkle_root(
        &self,
        ext_memory: &mut E,
    ) -> Result<[u8; 32], MetaCutError<E, Self>>;

    // Provided method
    fn digest_with_short_specs(
        &self,
        short_specs: &ShortSpecs,
        ext_memory: &mut E,
    ) -> Result<[u8; 32], MetaCutError<E, Self>> { ... }
}

AsMetadata with registry implementing HashableRegistry.

Required Methods

fn types_merkle_root( &self, ext_memory: &mut E, ) -> Result<[u8; 32], MetaCutError<E, Self>>

Calculate Merkle tree root hash for original complete types data.

This root hash must be identical both for shortened and full metadata. Note that for any shortened metadata in addition to known types data, serialized Merkle proof data would be required.

Provided Methods

fn digest_with_short_specs( &self, short_specs: &ShortSpecs, ext_memory: &mut E, ) -> Result<[u8; 32], MetaCutError<E, Self>>

Calculate full digest with additionally provided chain ShortSpecs.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<E: ExternalMemory> HashableMetadata<E> for RuntimeMetadataV15

Available on crate features merkle-standard only.

fn types_merkle_root( &self, _ext_memory: &mut E, ) -> Result<[u8; 32], MetaCutError<E, RuntimeMetadataV15>>

Implementors

impl<E, L> HashableMetadata<E> for ShortMetadata<L, E>

where L: Leaf<LEN, E>, E: ExternalMemory,

Available on crate features merkle-lean only.