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76 lines
2.0 KiB
76 lines
2.0 KiB
'use strict'
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import { Transaction as Tx } from '@ethereumjs/tx'
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import { Block } from '@ethereumjs/block'
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import { BN, bufferToHex, Address } from 'ethereumjs-util'
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import { vm as remixlibVM } from '@remix-project/remix-lib'
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import VM from '@ethereumjs/vm'
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import Common from '@ethereumjs/common'
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export function sendTx (vm, from, to, value, data, cb?) {
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cb = cb || (() => {})
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return new Promise ((resolve, reject) => {
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var tx = new Tx({
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nonce: new BN(from.nonce++),
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gasPrice: new BN(1),
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gasLimit: new BN(3000000, 10),
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to: to,
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value: new BN(value, 10),
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data: Buffer.from(data, 'hex')
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})
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tx = tx.sign(from.privateKey)
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var block = Block.fromBlockData({
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header: {
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timestamp: new Date().getTime() / 1000 | 0,
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number: 0
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}
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}) // still using default common
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try {
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vm.runTx({block: block, tx: tx, skipBalance: true, skipNonce: true}).then(function (result) {
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setTimeout(() => {
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const hash = bufferToHex(tx.hash())
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cb(null, { hash, result })
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resolve({ hash, result })
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}, 500)
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}).catch((error) => {
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console.error(error)
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cb(error)
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reject(error)
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})
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} catch (e) {
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console.error(e)
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}
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})
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}
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async function createVm (hardfork) {
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const common = new Common({ chain: 'mainnet', hardfork })
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const vm = new VM({ common })
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await vm.init()
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return { vm, stateManager: vm.stateManager }
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}
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/*
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Init VM / Send Transaction
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*/
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export async function initVM (st, privateKey) {
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var VM = await createVm('berlin')
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const vm = VM.vm
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var address = Address.fromPrivateKey(privateKey)
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try {
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let account = await vm.stateManager.getAccount(address)
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account.balance = new BN('f00000000000000001', 16)
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await vm.stateManager.putAccount(address, account)
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} catch (error) {
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console.log(error)
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}
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var web3Provider = new remixlibVM.Web3VMProvider()
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web3Provider.setVM(vm)
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vm.web3 = web3Provider
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return vm
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}
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