Ethereum Virtual Machine implementation

Artem Vorotnikov

Last update: Dec 9, 2022

Related tags

Virtualization evmodin

Overview

evmodin

Fast EVM implementation with full async support. Port of evmone to Rust.

Usage

use evmodin::{*, host::*, util::*, tracing::*};
use ethereum_types::*;
use hex_literal::hex;

let my_code = Bytecode::new()
    .mstore8_value(0, b'h')
    .mstore8_value(1, b'e')
    .mstore8_value(2, b'l')
    .mstore8_value(3, b'l')
    .mstore8_value(4, b'o')
    .ret(0, 5)
    .build();

let message = Message {
    kind: CallKind::Call,
    is_static: true,
    depth: 0,
    gas: 200,
    destination: Address::zero(),
    sender: Address::zero(),
    input_data: vec![].into(),
    value: U256::zero(),
};

assert_eq!(
    AnalyzedCode::analyze(my_code)
        .execute(&mut DummyHost, &mut NoopTracer, message, Revision::London)
        .await,
    Output {
        status_code: StatusCode::Success,
        gas_left: 146,
        output_data: b"hello".to_vec().into(),
        create_address: None,
    }
)

License: Apache-2.0

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Comments

Fixes a compilation error for wasm targets.

Without this fix, the build fails when targetting wasm. Repro steps:

$ wasm-pack build --target web
[INFO]: 🎯  Checking for the Wasm target...
[INFO]: 🌀  Compiling to Wasm...
   Compiling getrandom v0.2.3
error: the wasm32-unknown-unknown target is not supported by default, you may need to enable the "js" feature. For more information see: https://docs.rs/getrandom/#webassembly-support
   --> /*******/.cargo/registry/src/github.com-1ecc6299db9ec823/getrandom-0.2.3/src/lib.rs:219:9
    |
219 | /         compile_error!("the wasm32-unknown-unknown target is not supported by \
220 | |                         default, you may need to enable the \"js\" feature. \
221 | |                         For more information see: \
222 | |                         https://docs.rs/getrandom/#webassembly-support");
    | |_________________________________________________________________________^

error[E0433]: failed to resolve: use of undeclared crate or module `imp`
   --> /********/.cargo/registry/src/github.com-1ecc6299db9ec823/getrandom-0.2.3/src/lib.rs:246:5
    |
246 |     imp::getrandom_inner(dest)
    |     ^^^ use of undeclared crate or module `imp`

For more information about this error, try `rustc --explain E0433`.
error: could not compile `getrandom` due to 2 previous errors
Error: Compiling your crate to WebAssembly failed
Caused by: failed to execute `cargo build`: exited with exit status: 101
  full command: "cargo" "build" "--lib" "--release" "--target" "wasm32-unknown-unknown"

After applying this fix the compilation succeeds:

$ wasm-pack build --target web
[INFO]: 🎯  Checking for the Wasm target...
[INFO]: 🌀  Compiling to Wasm...
    Finished release [optimized] target(s) in 0.13s
[INFO]: ⬇️  Installing wasm-bindgen...
[INFO]: Optimizing wasm binaries with `wasm-opt`...
[INFO]: Optional fields missing from Cargo.toml: 'description', 'repository'. These are not necessary, but recommended
[INFO]: ✨   Done in 0.71s
[INFO]: 📦   Your wasm pkg is ready to publish at /*****/evmodin/pkg.

opened by karim-agha 4

Adding String to Enum conversion for hardfork names.

I needed to translate hardfork names from string to a typed enum multiple times so far when reading config, exposing JS api through N-API, etc. I think that if we keep this here, we can guarantee that this conversion will always be in sync with new hardforks that become supported by evmodin.

opened by karim-agha 0
Adding String to Enum conversion for hardfork names.

I needed to translate hardfork names from string to a typed enum multiple times so far when reading config, exposing JS api through N-API, etc. I think that if we keep this here, we can guarantee that this conversion will always be in sync with new hardforks that become supported by evmodin.

opened by karim-agha 0