revme/cmd/blockchaintest/
post_block.rs

1use revm::{
2    context::{Block, ContextTr, JournalTr},
3    handler::EvmTr,
4    primitives::{address, hardfork::SpecId, Address, Bytes, ONE_ETHER, ONE_GWEI, U256},
5    statetest_types::blockchain::Withdrawal,
6    Database, DatabaseCommit, SystemCallCommitEvm,
7};
8
9/// Post block transition that includes:
10///   * Block and uncle rewards before the Merge/Paris hardfork.
11///   * Withdrawals (EIP-4895)
12///   * Post-block system calls: EIP-7002 (withdrawal requests) and EIP-7251 (consolidation requests)
13///
14/// # Note
15///
16/// Uncle rewards are not implemented yet.
17#[inline]
18pub fn post_block_transition<
19    'a,
20    DB: Database + DatabaseCommit + 'a,
21    EVM: SystemCallCommitEvm<Error: core::fmt::Debug> + EvmTr<Context: ContextTr<Db = DB>>,
22>(
23    evm: &mut EVM,
24    block: impl Block,
25    withdrawals: &[Withdrawal],
26    spec: SpecId,
27) {
28    // block reward
29    let block_reward = block_reward(spec, 0);
30    if block_reward != 0 {
31        evm.ctx_mut()
32            .journal_mut()
33            .balance_incr(block.beneficiary(), U256::from(block_reward))
34            .expect("Db actions to pass");
35    }
36
37    // withdrawals
38    if spec.is_enabled_in(SpecId::SHANGHAI) {
39        for withdrawal in withdrawals {
40            evm.ctx_mut()
41                .journal_mut()
42                .balance_incr(
43                    withdrawal.address,
44                    withdrawal.amount.saturating_mul(U256::from(ONE_GWEI)),
45                )
46                .expect("Db actions to pass");
47        }
48    }
49
50    evm.commit_inner();
51
52    // EIP-7002: Withdrawal requests system call
53    if spec.is_enabled_in(SpecId::PRAGUE) {
54        system_call_eip7002_withdrawal_request(evm);
55    }
56
57    // EIP-7251: Consolidation requests system call
58    if spec.is_enabled_in(SpecId::PRAGUE) {
59        system_call_eip7251_consolidation_request(evm);
60    }
61}
62
63/// Block reward for a block.
64#[inline]
65pub const fn block_reward(spec: SpecId, ommers: usize) -> u128 {
66    if spec.is_enabled_in(SpecId::MERGE) {
67        return 0;
68    }
69
70    let reward = if spec.is_enabled_in(SpecId::CONSTANTINOPLE) {
71        ONE_ETHER * 2
72    } else if spec.is_enabled_in(SpecId::BYZANTIUM) {
73        ONE_ETHER * 3
74    } else {
75        ONE_ETHER * 5
76    };
77
78    reward + (reward >> 5) * ommers as u128
79}
80
81pub const WITHDRAWAL_REQUEST_ADDRESS: Address =
82    address!("0x00000961Ef480Eb55e80D19ad83579A64c007002");
83
84/// EIP-7002: Withdrawal requests system call
85pub(crate) fn system_call_eip7002_withdrawal_request(
86    evm: &mut impl SystemCallCommitEvm<Error: core::fmt::Debug>,
87) {
88    // empty data is valid for EIP-7002
89    let _ = match evm.system_call_commit(WITHDRAWAL_REQUEST_ADDRESS, Bytes::new()) {
90        Ok(res) => res,
91        Err(e) => {
92            panic!("System call failed: {e:?}");
93        }
94    };
95}
96
97pub const CONSOLIDATION_REQUEST_ADDRESS: Address =
98    address!("0x0000BBdDc7CE488642fb579F8B00f3a590007251");
99
100/// EIP-7251: Consolidation requests system call
101pub(crate) fn system_call_eip7251_consolidation_request(
102    evm: &mut impl SystemCallCommitEvm<Error: core::fmt::Debug>,
103) {
104    let _ = match evm.system_call_commit(CONSOLIDATION_REQUEST_ADDRESS, Bytes::new()) {
105        Ok(res) => res,
106        Err(e) => {
107            panic!("System call failed: {e:?}");
108        }
109    };
110}
revme/cmd/blockchaintest/post_block.rs

revme/cmd/blockchaintest/
post_block.rs
