[smock] dev: Use latest smock codebase (#429)

* dev: Use latest smock codebase

* Update package.json

packages/smock/package.json

 {
   "name": "@eth-optimism/smock",
-  "version": "1.0.0-alpha.3",
+  "version": "1.0.0-alpha.7",
   "main": "dist/src/index",
   "types": "dist/src/index",
   "files": [

packages/smock/src/smoddit/binding.ts

-/* External Imports */
-import { toHexString, fromHexString } from '@eth-optimism/core-utils'
-import { HardhatNetworkProvider } from 'hardhat/internal/hardhat-network/provider/provider'
-
-/* Internal Imports */
-import { ModifiableContract } from './types'
-
-/**
- * Checks to see if smoddit has been initialized already.
- * @param provider Base hardhat network provider to check.
- * @return Whether or not the provider has already been modified to support smoddit.
- */
-const isSmodInitialized = (provider: HardhatNetworkProvider): boolean => {
-  return (provider as any)._node._vm._smod !== undefined
-}
-
-/**
- * Initializes smodding functionality.
- * @param provider Base hardhat network provider to modify.
- */
-const initializeSmod = (provider: HardhatNetworkProvider): void => {
-  if (isSmodInitialized(provider)) {
-    return
-  }
-
-  // Will need to reference these things.
-  const node = (provider as any)._node
-  const vm = node._vm
-  const pStateManager = vm.pStateManager
-
-  vm._smod = {
-    contracts: {},
-  }
-
-  const originalGetStorageFn = pStateManager.getContractStorage.bind(
-    pStateManager
-  )
-  pStateManager.getContractStorage = async (
-    addressBuf: Buffer,
-    keyBuf: Buffer
-  ): Promise<Buffer> => {
-    const originalReturnValue = await originalGetStorageFn(addressBuf, keyBuf)
-
-    const address = toHexString(addressBuf).toLowerCase()
-    const key = toHexString(keyBuf).toLowerCase()
-
-    if (!(address in vm._smod.contracts)) {
-      return originalReturnValue
-    }
-
-    const contract: ModifiableContract = vm._smod.contracts[address]
-    if (!(key in contract._smodded)) {
-      return originalReturnValue
-    }
-
-    return fromHexString(contract._smodded[key])
-  }
-
-  const originalPutStorageFn = pStateManager.putContractStorage.bind(
-    pStateManager
-  )
-  pStateManager.putContractStorage = async (
-    addressBuf: Buffer,
-    keyBuf: Buffer,
-    valBuf: Buffer
-  ): Promise<void> => {
-    await originalPutStorageFn(addressBuf, keyBuf, valBuf)
-
-    const address = toHexString(addressBuf).toLowerCase()
-    const key = toHexString(keyBuf).toLowerCase()
-
-    if (!(address in vm._smod.contracts)) {
-      return
-    }
-
-    const contract: ModifiableContract = vm._smod.contracts[address]
-    if (!(key in contract._smodded)) {
-      return
-    }
-
-    delete contract._smodded[key]
-  }
-}
-
-/**
- * Binds the smodded contract to the VM.
- * @param contract Contract to bind.
- */
-export const bindSmod = (
-  contract: ModifiableContract,
-  provider: HardhatNetworkProvider
-): void => {
-  if (!isSmodInitialized(provider)) {
-    initializeSmod(provider)
-  }
-
-  const vm = (provider as any)._node._vm
-
-  // Add mock to our list of mocks currently attached to the VM.
-  vm._smod.contracts[contract.address.toLowerCase()] = contract
-}