revm_primitives/
lib.rs

1//! # revm-primitives
2//!
3//! Core primitive types and constants for the Ethereum Virtual Machine (EVM) implementation.
4//!
5//! This crate provides:
6//! - EVM constants and limits (gas, stack, code size)
7//! - Ethereum hard fork management and version control
8//! - EIP-specific constants and configuration values
9//! - Cross-platform synchronization primitives
10//! - Type aliases for common EVM concepts (storage keys/values)
11//! - Re-exports of alloy primitive types for convenience
12#![cfg_attr(not(test), warn(unused_crate_dependencies))]
13#![cfg_attr(not(feature = "std"), no_std)]
14
15#[cfg(not(feature = "std"))]
16extern crate alloc as std;
17
18pub mod constants;
19pub mod eip170;
20pub mod eip3860;
21pub mod eip4844;
22pub mod eip7702;
23pub mod eip7823;
24pub mod eip7825;
25pub mod eip7907;
26pub mod hardfork;
27mod once_lock;
28
29pub use constants::*;
30pub use once_lock::OnceLock;
31
32// Reexport alloy primitives.
33
34pub use alloy_primitives::map::{self, hash_map, hash_set, HashMap, HashSet};
35pub use alloy_primitives::{
36    self, address, b256, bytes, fixed_bytes, hex, hex_literal, keccak256, ruint, uint, Address,
37    Bytes, FixedBytes, Log, LogData, TxKind, B256, I128, I256, U128, U256,
38};
39
40/// Type alias for EVM storage keys (256-bit unsigned integers).
41/// Used to identify storage slots within smart contract storage.
42pub type StorageKey = U256;
43
44/// Type alias for EVM storage values (256-bit unsigned integers).
45/// Used to store data values in smart contract storage slots.
46pub type StorageValue = U256;
47
48/// Optimize short address access.
49pub const SHORT_ADDRESS_CAP: usize = 300;
50
51/// Returns the short address from Address.
52///
53/// Short address is considered address that has 18 leading zeros
54/// and last two bytes are less than [`SHORT_ADDRESS_CAP`].
55#[inline]
56pub fn short_address(address: &Address) -> Option<usize> {
57    if address.0[..18].iter().all(|b| *b == 0) {
58        let short_address = u16::from_be_bytes([address.0[18], address.0[19]]) as usize;
59        if short_address < SHORT_ADDRESS_CAP {
60            return Some(short_address);
61        }
62    }
63    None
64}
65
66/// 1 ether = 10^18 wei
67pub const ONE_ETHER: u128 = 1_000_000_000_000_000_000;
68
69/// 1 gwei = 10^9 wei
70pub const ONE_GWEI: u128 = 1_000_000_000;
revm_primitives/lib.rs

revm_primitives/
lib.rs
