Cubane

Next-gen Ethereum library for TypeScript

npm i @hazae41/cubane

Node Package 📦

Features

Goals

• 100% TypeScript and ESM
• Minimal dependencies
• Rust-like patterns
• Human-readable code
• Bottom-up abstractions
• Bring your own algorithms
• Zero-copy bytes encoding
• Compile-time codegen

Implemented

• ABI / ABIv2 (except fixed)
• Function parsing (e.g. f(uint256))
• Recursive-Length Prefix (RLP) coding
• TypedData (EIP-712) hashing
• ENS (e.g. namehash)

Coming soon

• JSON-ABI parsing
• Return type of functions
• Signatures and transactions

Benchmark

Encoding various types with preparsed ABI

Cubane can encode both to hexadecimal string and to Uint8Array, this benchmark aims to check the speed difference between both engines and between other libraries

• @hazae41/cubane@0.1.14
• viem@2.4.1
• ethers@6.10.0

Running on Node 20.3.1 on Apple M1 Max

┌────────────────┬──────────────────┬─────────────┬─────────────┐
│    (index)     │     average      │   minimum   │   maximum   │
├────────────────┼──────────────────┼─────────────┼─────────────┤
│ cubane (bytes) │  '4.10 μs/iter'  │  '3.08 μs'  │ '129.37 μs' │
│  cubane (hex)  │  '4.47 μs/iter'  │  '3.83 μs'  │ '76.13 μs'  │
│      viem      │ '18.77 μs/iter'  │ '16.58 μs'  │ '184.83 μs' │
│     ethers     │ '211.55 μs/iter' │ '194.08 μs' │ '586.21 μs' │
└────────────────┴──────────────────┴─────────────┴─────────────┘
Summary
- cubane (hex) is 4.20x faster than viem
- cubane (hex) is 47.28x faster than ethers
Summary
- cubane (bytes) is 4.58x faster than viem
- cubane (bytes) is 51.59x faster than ethers

Setup

Symbol.dispose

You may need to polyfill Symbol.dispose

import "@hazae41/symbol-dispose-polyfill"

See https://github.com/hazae41/symbol-dispose-polyfill for more

Algorithms

You can bring your own implementation for some algorithms

Keccak256 (mandatory)

Morax includes a fast WebAssembly port of Keccak256

npm i @hazae41/morax

keccak256.ts

import { Keccak256 } from "@hazae41/keccak256"

Keccak256.set(await Keccak256.fromMorax())

See https://github.com/hazae41/keccak256 for more

Base16 (optional)

Alocer includes a fast WebAssembly port of Base16

npm i @hazae41/alocer

base16.ts

import { Base16 } from "@hazae41/base16"

Base16.set(await Base16.fromBufferOrAlocer())

See https://github.com/hazae41/base16 for more

Usage

Abi to Hex (runtime)

Parse the function from its signature

import { Abi } from "@hazae41/cubane"

const f = Abi.FunctionSignature.parseOrThrow("f(bool,uint256,string)")

Encode the function selector and its arguments (it will return a 0x-prefixed hex string)

const hex = f.from(true, 123456789n, "hello world").encodeOrThrow()
// c4b71e130000000000000000000000000000000000000000000000000000000000000001...

Abi to Hex (macro)

Cubane provides Saumon macros to generate typed ABI functions

f.abi.macro.ts

import "@hazae41/symbol-dispose-polyfill"
import { Abi } from "@hazae41/cubane"

/**
 * Your Keccak256 adapter code
 */
import "./keccak256.js"

export const f = Abi.FunctionSignature.$parse$("f(bool,uint256,string)")

saumon build ./f.abi.macro.ts

main.ts

import { f } from "./f.abi.ts"

/**
 * f is fully typed as (bool,uint256,string)
 */
const hex = f.from(true, 123456789n, "hello world").encodeOrThrow()
// c4b71e130000000000000000000000000000000000000000000000000000000000000001...

Abi to Hex (manual)

You can generate the function from its signature

> import { Abi } from "@hazae41/cubane"
> console.log(Abi.FunctionSignature.parseOrThrow("f(bool,uint256,string)").codegen())

Paste it in a file f.abi.ts

export const f = /*generated code*/

Encode the function selector and its arguments (it will return a 0x-prefixed hex string)

import { f } from "./f.abi.ts"

/**
 * f is fully typed as (bool,uint256,string)
 */
const hex = f.from(true, 123456789n, "hello world").encodeOrThrow()
// c4b71e130000000000000000000000000000000000000000000000000000000000000001...

Rlp to Bytes

import { RlpString, RlpList } from "@hazae41/cubane"
import { Writable } from "@hazae41/binary"

const cat = RlpString.from(Bytes.fromUtf8("cat"))
const dog = RlpString.from(Bytes.fromUtf8("dog"))
const catAndDog = RlpList.from([cat, dog])

const bytes = Writable.writeToBytesOrThrow(catAndDog)

Rlp to Hex

import { RlpString, RlpList } from "@hazae41/cubane"
import { Writable } from "@hazae41/binary"

const cat = RlpString.from(Bytes.fromUtf8("cat"))
const dog = RlpString.from(Bytes.fromUtf8("dog"))
const catAndDog = RlpList.from([cat, dog])

const bytes = Writable.writeToBytesOrThrow(catAndDog)
const hex = "0x" + Base16.get().encodeOrThrow(bytes)