reth_chainspec/
api.rs

1use crate::{ChainSpec, DepositContract};
2use alloc::{boxed::Box, vec::Vec};
3use alloy_chains::Chain;
4use alloy_eips::{eip1559::BaseFeeParams, eip7840::BlobParams};
5use alloy_genesis::Genesis;
6use alloy_primitives::{B256, U256};
7use core::fmt::{Debug, Display};
8use reth_ethereum_forks::EthereumHardforks;
9use reth_network_peers::NodeRecord;
10use reth_primitives_traits::{AlloyBlockHeader, BlockHeader};
11
12/// Trait representing type configuring a chain spec.
13#[auto_impl::auto_impl(&, Arc)]
14pub trait EthChainSpec: Send + Sync + Unpin + Debug {
15    /// The header type of the network.
16    type Header: BlockHeader;
17
18    /// Returns the [`Chain`] object this spec targets.
19    fn chain(&self) -> Chain;
20
21    /// Returns the chain id number
22    fn chain_id(&self) -> u64 {
23        self.chain().id()
24    }
25
26    /// Get the [`BaseFeeParams`] for the chain at the given timestamp.
27    fn base_fee_params_at_timestamp(&self, timestamp: u64) -> BaseFeeParams;
28
29    /// Get the [`BlobParams`] for the given timestamp
30    fn blob_params_at_timestamp(&self, timestamp: u64) -> Option<BlobParams>;
31
32    /// Returns the deposit contract data for the chain, if it's present
33    fn deposit_contract(&self) -> Option<&DepositContract>;
34
35    /// The genesis hash.
36    fn genesis_hash(&self) -> B256;
37
38    /// The delete limit for pruner, per run.
39    fn prune_delete_limit(&self) -> usize;
40
41    /// Returns a string representation of the hardforks.
42    fn display_hardforks(&self) -> Box<dyn Display>;
43
44    /// The genesis header.
45    fn genesis_header(&self) -> &Self::Header;
46
47    /// The genesis block specification.
48    fn genesis(&self) -> &Genesis;
49
50    /// The bootnodes for the chain, if any.
51    fn bootnodes(&self) -> Option<Vec<NodeRecord>>;
52
53    /// Returns `true` if this chain contains Optimism configuration.
54    fn is_optimism(&self) -> bool {
55        self.chain().is_optimism()
56    }
57
58    /// Returns `true` if this chain contains Ethereum configuration.
59    fn is_ethereum(&self) -> bool {
60        self.chain().is_ethereum()
61    }
62
63    /// Returns the final total difficulty if the Paris hardfork is known.
64    fn final_paris_total_difficulty(&self) -> Option<U256>;
65
66    /// See [`AlloyBlockHeader::next_block_base_fee`].
67    fn next_block_base_fee(&self, parent: &Self::Header, target_timestamp: u64) -> Option<u64> {
68        parent.next_block_base_fee(self.base_fee_params_at_timestamp(target_timestamp))
69    }
70}
71
72impl<H: BlockHeader> EthChainSpec for ChainSpec<H> {
73    type Header = H;
74
75    fn chain(&self) -> Chain {
76        self.chain
77    }
78
79    fn base_fee_params_at_timestamp(&self, timestamp: u64) -> BaseFeeParams {
80        self.base_fee_params_at_timestamp(timestamp)
81    }
82
83    fn blob_params_at_timestamp(&self, timestamp: u64) -> Option<BlobParams> {
84        if let Some(blob_param) = self.blob_params.active_scheduled_params_at_timestamp(timestamp) {
85            Some(*blob_param)
86        } else if self.is_osaka_active_at_timestamp(timestamp) {
87            Some(self.blob_params.osaka)
88        } else if self.is_prague_active_at_timestamp(timestamp) {
89            Some(self.blob_params.prague)
90        } else if self.is_cancun_active_at_timestamp(timestamp) {
91            Some(self.blob_params.cancun)
92        } else {
93            None
94        }
95    }
96
97    fn deposit_contract(&self) -> Option<&DepositContract> {
98        self.deposit_contract.as_ref()
99    }
100
101    fn genesis_hash(&self) -> B256 {
102        self.genesis_hash()
103    }
104
105    fn prune_delete_limit(&self) -> usize {
106        self.prune_delete_limit
107    }
108
109    fn display_hardforks(&self) -> Box<dyn Display> {
110        Box::new(Self::display_hardforks(self))
111    }
112
113    fn genesis_header(&self) -> &Self::Header {
114        self.genesis_header()
115    }
116
117    fn genesis(&self) -> &Genesis {
118        self.genesis()
119    }
120
121    fn bootnodes(&self) -> Option<Vec<NodeRecord>> {
122        self.bootnodes()
123    }
124
125    fn is_optimism(&self) -> bool {
126        false
127    }
128
129    fn final_paris_total_difficulty(&self) -> Option<U256> {
130        self.get_final_paris_total_difficulty()
131    }
132}
reth_chainspec/api.rs

reth_chainspec/
api.rs
