ethereum/
header.rs

1use ethereum_types::{Bloom, H160, H256, H64, U256};
2use sha3::{Digest, Keccak256};
3
4use crate::Bytes;
5
6/// Ethereum header definition.
7#[derive(Clone, Debug, PartialEq, Eq)]
8#[derive(rlp::RlpEncodable, rlp::RlpDecodable)]
9#[cfg_attr(
10	feature = "with-scale",
11	derive(scale_codec::Encode, scale_codec::Decode, scale_info::TypeInfo)
12)]
13#[cfg_attr(feature = "with-serde", derive(serde::Serialize, serde::Deserialize))]
14pub struct Header {
15	pub parent_hash: H256,
16	pub ommers_hash: H256,
17	pub beneficiary: H160,
18	pub state_root: H256,
19	pub transactions_root: H256,
20	pub receipts_root: H256,
21	pub logs_bloom: Bloom,
22	pub difficulty: U256,
23	pub number: U256,
24	pub gas_limit: U256,
25	pub gas_used: U256,
26	pub timestamp: u64,
27	pub extra_data: Bytes,
28	pub mix_hash: H256,
29	pub nonce: H64,
30}
31
32impl Header {
33	#[must_use]
34	pub fn new(partial_header: PartialHeader, ommers_hash: H256, transactions_root: H256) -> Self {
35		Self {
36			parent_hash: partial_header.parent_hash,
37			ommers_hash,
38			beneficiary: partial_header.beneficiary,
39			state_root: partial_header.state_root,
40			transactions_root,
41			receipts_root: partial_header.receipts_root,
42			logs_bloom: partial_header.logs_bloom,
43			difficulty: partial_header.difficulty,
44			number: partial_header.number,
45			gas_limit: partial_header.gas_limit,
46			gas_used: partial_header.gas_used,
47			timestamp: partial_header.timestamp,
48			extra_data: partial_header.extra_data,
49			mix_hash: partial_header.mix_hash,
50			nonce: partial_header.nonce,
51		}
52	}
53
54	#[must_use]
55	pub fn hash(&self) -> H256 {
56		H256::from_slice(Keccak256::digest(rlp::encode(self)).as_slice())
57	}
58}
59
60/// Partial header definition without ommers hash and transactions root.
61#[derive(Clone, Debug, PartialEq, Eq)]
62pub struct PartialHeader {
63	pub parent_hash: H256,
64	pub beneficiary: H160,
65	pub state_root: H256,
66	pub receipts_root: H256,
67	pub logs_bloom: Bloom,
68	pub difficulty: U256,
69	pub number: U256,
70	pub gas_limit: U256,
71	pub gas_used: U256,
72	pub timestamp: u64,
73	pub extra_data: Bytes,
74	pub mix_hash: H256,
75	pub nonce: H64,
76}
77
78impl From<Header> for PartialHeader {
79	fn from(header: Header) -> PartialHeader {
80		Self {
81			parent_hash: header.parent_hash,
82			beneficiary: header.beneficiary,
83			state_root: header.state_root,
84			receipts_root: header.receipts_root,
85			logs_bloom: header.logs_bloom,
86			difficulty: header.difficulty,
87			number: header.number,
88			gas_limit: header.gas_limit,
89			gas_used: header.gas_used,
90			timestamp: header.timestamp,
91			extra_data: header.extra_data,
92			mix_hash: header.mix_hash,
93			nonce: header.nonce,
94		}
95	}
96}
ethereum/header.rs

ethereum/
header.rs
