bunPluginTevm

bunPluginTevm(SolcVersions): BunPlugin

Bun plugin for tevm. Enables Solidity imports in JavaScript. Once enabled the code will transform solidity contract imports into Tevm Contract instances.

Parameters

▪ SolcVersions: object

Which solc version to use

▪ SolcVersions.solc?: SolcVersions= defaultSolc.version

Returns

• A bun plugin

To configure add this plugin to your Bun config and add the ts-plugin to your tsconfig.json

Example

// Configure plugin in a plugin.ts file
import { tevmPluginBun } from '@tevm/bun-plugin'
import { plugin } from 'bun'

plugin(tevmPluginBun())

// Add the plugin.ts to your bunfig.toml

preload = ["./plugins.ts"]

For LSP so your editor recognizes the solidity imports correctly you must also configure tevm/ts-plugin in your tsconfig.json The ts-plugin will provide type hints, code completion, and other features.

Example

{
  "compilerOptions": {
    "plugins": [{ "name": "tevm/ts-plugin" }]
  }
}

Once the esbuild plugin and the ts-plugin are configured, you can import Solidity files in JavaScript. The compiler will turn them into Tevm Contract instances.

Example

// Solidity imports are automaticlaly turned into Tevm Contract objects
import { ERC20 } from '@openzeppelin/contracts/token/ERC20/ERC20.sol'
import { createTevm } from 'tevm'

console.log(ERC20.abi)
console.log(ERC20.humanReadableAbi)
console.log(ERC20.bytecode)

tevm.contract(
  ERC20.withAddress(.read.balanceOf()
)

Under the hood the esbuild plugin is creating a virtual file for ERC20.sol called ERC20.sol.cjs that looks like this

Example

import { createContract } from '@tevm/contract'

export const ERC20 = createContract({
  name: 'ERC20',
  humanReadableAbi: [ 'function balanceOf(address): uint256', ... ],
  bytecode: '0x...',
  deployedBytecode: '0x...',
})

For custom configuration of the Tevm compiler add a tevm.config.json file to your project root.

Example

{
  foundryProject?: boolean | string | undefined,
  libs: ['lib'],
  remappings: {'foo': 'vendored/foo'},
  debug: true,
  cacheDir: '.tevm'
}

See

Tevm esbuild example

Source

bunPluginTevm.js:86

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