75 lines
1.9 KiB
Rust
75 lines
1.9 KiB
Rust
pub mod impls;
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pub mod merkleize;
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pub const BYTES_PER_CHUNK: usize = 32;
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pub const HASHSIZE: usize = 32;
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pub const MERKLE_HASH_CHUNK: usize = 2 * BYTES_PER_CHUNK;
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#[derive(Debug, PartialEq, Clone)]
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pub enum TreeHashType {
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Basic,
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Vector,
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List,
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Container,
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}
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pub trait TreeHash {
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fn tree_hash_type() -> TreeHashType;
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fn tree_hash_packed_encoding(&self) -> Vec<u8>;
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fn tree_hash_packing_factor() -> usize;
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fn tree_hash_root(&self) -> Vec<u8>;
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}
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pub trait SignedRoot: TreeHash {
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fn signed_root(&self) -> Vec<u8>;
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}
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#[macro_export]
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macro_rules! tree_hash_ssz_encoding_as_vector {
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($type: ident) => {
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impl tree_hash::TreeHash for $type {
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fn tree_hash_type() -> tree_hash::TreeHashType {
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tree_hash::TreeHashType::Vector
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}
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fn tree_hash_packed_encoding(&self) -> Vec<u8> {
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unreachable!("Vector should never be packed.")
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}
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fn tree_hash_packing_factor() -> usize {
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unreachable!("Vector should never be packed.")
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}
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fn tree_hash_root(&self) -> Vec<u8> {
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tree_hash::merkleize::merkle_root(&ssz::ssz_encode(self))
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}
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}
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};
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}
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#[macro_export]
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macro_rules! tree_hash_ssz_encoding_as_list {
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($type: ident) => {
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impl tree_hash::TreeHash for $type {
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fn tree_hash_type() -> tree_hash::TreeHashType {
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tree_hash::TreeHashType::List
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}
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fn tree_hash_packed_encoding(&self) -> Vec<u8> {
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unreachable!("List should never be packed.")
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}
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fn tree_hash_packing_factor() -> usize {
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unreachable!("List should never be packed.")
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}
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fn tree_hash_root(&self) -> Vec<u8> {
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ssz::ssz_encode(self).tree_hash_root()
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}
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}
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};
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}
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