From 4fded511066473f2b42fd35945a0e56e4580d83f Mon Sep 17 00:00:00 2001
From: poma <semenov.roma@gmail.com>
Date: Wed, 16 Jun 2021 03:31:31 +0300
Subject: [PATCH] lint, CI, Readme

---
 .github/workflows/build.yml |  30 +++
 .prettierignore             |   4 +
 README.md                   |   9 +
 contracts/TornadoPool.sol   | 129 +++++----
 hardhat.config.js           |   1 -
 package.json                |  15 +-
 scripts/deploy.js           |   2 +-
 src/index.js                |   6 +-
 src/keypair.js              |   4 +-
 src/prover.js               |  12 +-
 src/utxo.js                 |  10 +-
 test/full.test.js           |  24 +-
 yarn.lock                   | 513 ++++++++++++++++++++++++++++++++++--
 13 files changed, 655 insertions(+), 104 deletions(-)
 create mode 100644 .github/workflows/build.yml
 create mode 100644 .prettierignore
 create mode 100644 README.md

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..e94b1aa
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,30 @@
+name: build
+
+on:
+  push:
+    branches: ['*']
+    tags: ['v[0-9]+.[0-9]+.[0-9]+']
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+      - run: yarn install
+      - run: yarn lint
+# build is disabled until it's made non-interactive
+#      - run: yarn build
+#      - run: yarn test
+#      - name: Telegram Failure Notification
+#        uses: appleboy/telegram-action@0.0.7
+#        if: failure()
+#        with:
+#          message: ❗ Build failed for [${{ github.repository }}](https://github.com/${{ github.repository }}/actions) because of ${{ github.actor }}
+#          format: markdown
+#          to: ${{ secrets.TELEGRAM_CHAT_ID }}
+#          token: ${{ secrets.TELEGRAM_BOT_TOKEN }}
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..448f66a
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,4 @@
+.vscode
+.idea
+artifacts
+cache
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..035f2c1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# Tornado Pool [![Build Status](https://github.com/tornadocash/tornado-pool/workflows/build/badge.svg)](https://github.com/tornadocash/tornado-pool/actions)
+
+## Usage
+
+```shell
+yarn
+yarn build
+yarn test
+```
diff --git a/contracts/TornadoPool.sol b/contracts/TornadoPool.sol
index b759789..a3f4596 100644
--- a/contracts/TornadoPool.sol
+++ b/contracts/TornadoPool.sol
@@ -1,14 +1,14 @@
 // SPDX-License-Identifier: MIT
 // https://tornado.cash
 /*
-* d888888P                                           dP              a88888b.                   dP
-*    88                                              88             d8'   `88                   88
-*    88    .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b.    88        .d8888b. .d8888b. 88d888b.
-*    88    88'  `88 88'  `88 88'  `88 88'  `88 88'  `88 88'  `88    88        88'  `88 Y8ooooo. 88'  `88
-*    88    88.  .88 88       88    88 88.  .88 88.  .88 88.  .88 dP Y8.   .88 88.  .88       88 88    88
-*    dP    `88888P' dP       dP    dP `88888P8 `88888P8 `88888P' 88  Y88888P' `88888P8 `88888P' dP    dP
-* ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
-*/
+ * d888888P                                           dP              a88888b.                   dP
+ *    88                                              88             d8'   `88                   88
+ *    88    .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b.    88        .d8888b. .d8888b. 88d888b.
+ *    88    88'  `88 88'  `88 88'  `88 88'  `88 88'  `88 88'  `88    88        88'  `88 Y8ooooo. 88'  `88
+ *    88    88.  .88 88       88    88 88.  .88 88.  .88 88.  .88 dP Y8.   .88 88.  .88       88 88    88
+ *    dP    `88888P' dP       dP    dP `88888P8 `88888P8 `88888P' 88  Y88888P' `88888P8 `88888P' dP    dP
+ * ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
+ */
 
 pragma solidity ^0.6.0;
 pragma experimental ABIEncoderV2;
@@ -16,8 +16,9 @@ pragma experimental ABIEncoderV2;
 import "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; // todo: maybe remove?
 
 interface IVerifier {
-  function verifyProof(bytes memory _proof, uint256[9] memory _input) external returns(bool);
-  function verifyProof(bytes memory _proof, uint256[23] memory _input) external returns(bool);
+  function verifyProof(bytes memory _proof, uint256[9] memory _input) external returns (bool);
+
+  function verifyProof(bytes memory _proof, uint256[23] memory _input) external returns (bool);
 }
 
 contract TornadoPool is ReentrancyGuard {
@@ -26,7 +27,7 @@ contract TornadoPool is ReentrancyGuard {
 
   mapping(bytes32 => bool) public nullifierHashes;
   bytes32 public currentRoot;
-  uint public currentCommitmentIndex;
+  uint256 public currentCommitmentIndex;
   IVerifier public verifier2;
   IVerifier public verifier16;
 
@@ -38,7 +39,7 @@ contract TornadoPool is ReentrancyGuard {
   }
 
   // todo: event Transaction();
-  event NewCommitment(bytes32 commitment, uint index, bytes encryptedOutput);
+  event NewCommitment(bytes32 commitment, uint256 index, bytes encryptedOutput);
   event NewNullifier(bytes32 nullifier);
   event Withdraw(bytes32 indexed nullifier); // todo emit it on withdraw so we can easily find the withdraw tx for user on UI
 
@@ -47,7 +48,11 @@ contract TornadoPool is ReentrancyGuard {
     @param _verifier2 the address of SNARK verifier for this contract
     @param _verifier16 the address of SNARK verifier for this contract
   */
-  constructor(IVerifier _verifier2, IVerifier _verifier16, bytes32 _currentRoot) public {
+  constructor(
+    IVerifier _verifier2,
+    IVerifier _verifier16,
+    bytes32 _currentRoot
+  ) public {
     verifier2 = _verifier2;
     verifier16 = _verifier16;
     currentRoot = _currentRoot;
@@ -63,58 +68,68 @@ contract TornadoPool is ReentrancyGuard {
     uint256 _fee,
     ExtData calldata _extData,
     bytes32 _extDataHash
-  )
-    external payable nonReentrant
-  {
+  ) external payable nonReentrant {
     require(currentRoot == _root, "Invalid merkle root");
-    for(uint256 i = 0; i < _inputNullifiers.length; i++) {
+    for (uint256 i = 0; i < _inputNullifiers.length; i++) {
       require(!isSpent(_inputNullifiers[i]), "Input is already spent");
     }
     require(uint256(_extDataHash) == uint256(keccak256(abi.encode(_extData))) % FIELD_SIZE, "Incorrect external data hash");
     if (_inputNullifiers.length == 2) {
-      require(verifier2.verifyProof(_proof, [
-        uint256(_root),
-        uint256(_newRoot),
-        uint256(_inputNullifiers[0]),
-        uint256(_inputNullifiers[1]),
-        uint256(_outputCommitments[0]),
-        uint256(_outputCommitments[1]),
-        _extAmount,
-        _fee,
-        uint256(_extDataHash)
-      ]), "Invalid transaction proof");
+      require(
+        verifier2.verifyProof(
+          _proof,
+          [
+            uint256(_root),
+            uint256(_newRoot),
+            uint256(_inputNullifiers[0]),
+            uint256(_inputNullifiers[1]),
+            uint256(_outputCommitments[0]),
+            uint256(_outputCommitments[1]),
+            _extAmount,
+            _fee,
+            uint256(_extDataHash)
+          ]
+        ),
+        "Invalid transaction proof"
+      );
     } else if (_inputNullifiers.length == 16) {
-      require(verifier16.verifyProof(_proof, [
-        uint256(_root),
-        uint256(_newRoot),
-        uint256(_inputNullifiers[0]),
-        uint256(_inputNullifiers[1]),
-        uint256(_inputNullifiers[2]),
-        uint256(_inputNullifiers[3]),
-        uint256(_inputNullifiers[4]),
-        uint256(_inputNullifiers[5]),
-        uint256(_inputNullifiers[6]),
-        uint256(_inputNullifiers[7]),
-        uint256(_inputNullifiers[8]),
-        uint256(_inputNullifiers[9]),
-        uint256(_inputNullifiers[10]),
-        uint256(_inputNullifiers[11]),
-        uint256(_inputNullifiers[12]),
-        uint256(_inputNullifiers[13]),
-        uint256(_inputNullifiers[14]),
-        uint256(_inputNullifiers[15]),
-        uint256(_outputCommitments[0]),
-        uint256(_outputCommitments[1]),
-        _extAmount,
-        _fee,
-        uint256(_extDataHash)
-        ]), "Invalid transaction proof");
+      require(
+        verifier16.verifyProof(
+          _proof,
+          [
+            uint256(_root),
+            uint256(_newRoot),
+            uint256(_inputNullifiers[0]),
+            uint256(_inputNullifiers[1]),
+            uint256(_inputNullifiers[2]),
+            uint256(_inputNullifiers[3]),
+            uint256(_inputNullifiers[4]),
+            uint256(_inputNullifiers[5]),
+            uint256(_inputNullifiers[6]),
+            uint256(_inputNullifiers[7]),
+            uint256(_inputNullifiers[8]),
+            uint256(_inputNullifiers[9]),
+            uint256(_inputNullifiers[10]),
+            uint256(_inputNullifiers[11]),
+            uint256(_inputNullifiers[12]),
+            uint256(_inputNullifiers[13]),
+            uint256(_inputNullifiers[14]),
+            uint256(_inputNullifiers[15]),
+            uint256(_outputCommitments[0]),
+            uint256(_outputCommitments[1]),
+            _extAmount,
+            _fee,
+            uint256(_extDataHash)
+          ]
+        ),
+        "Invalid transaction proof"
+      );
     } else {
       revert("unsupported input count");
     }
 
     currentRoot = _newRoot;
-    for(uint256 i = 0; i < _inputNullifiers.length; i++) {
+    for (uint256 i = 0; i < _inputNullifiers.length; i++) {
       nullifierHashes[_inputNullifiers[i]] = true;
     }
 
@@ -136,12 +151,12 @@ contract TornadoPool is ReentrancyGuard {
     // todo enforce currentCommitmentIndex value in snark
     emit NewCommitment(_outputCommitments[0], currentCommitmentIndex++, _extData.encryptedOutput1);
     emit NewCommitment(_outputCommitments[1], currentCommitmentIndex++, _extData.encryptedOutput2);
-    for(uint256 i = 0; i < _inputNullifiers.length; i++) {
+    for (uint256 i = 0; i < _inputNullifiers.length; i++) {
       emit NewNullifier(_inputNullifiers[i]);
     }
   }
 
-  function calculateExternalAmount(uint256 _extAmount) public pure returns(int256) {
+  function calculateExternalAmount(uint256 _extAmount) public pure returns (int256) {
     // -MAX_EXT_AMOUNT < extAmount < MAX_EXT_AMOUNT
     if (_extAmount < MAX_EXT_AMOUNT) {
       return int256(_extAmount);
@@ -154,7 +169,7 @@ contract TornadoPool is ReentrancyGuard {
   }
 
   /** @dev whether a note is already spent */
-  function isSpent(bytes32 _nullifierHash) public view returns(bool) {
+  function isSpent(bytes32 _nullifierHash) public view returns (bool) {
     return nullifierHashes[_nullifierHash];
   }
 }
diff --git a/hardhat.config.js b/hardhat.config.js
index dc4d60d..e2e5c24 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -1,4 +1,3 @@
-/* global task, ethers */
 require('@nomiclabs/hardhat-waffle')
 require('dotenv').config()
 
diff --git a/package.json b/package.json
index db9bdbf..c76ea58 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,11 @@
     "circuit": "./scripts/buildCircuit.sh 2 && ./scripts/buildCircuit.sh 16",
     "compile": "npx hardhat compile",
     "build": "npm run circuit && npm run compile",
-    "test": "npx hardhat test"
+    "test": "npx hardhat test",
+    "eslint": "eslint --ext .js --ignore-path .gitignore .",
+    "prettier:check": "prettier --check . --config .prettierrc",
+    "prettier:fix": "prettier --write . --config .prettierrc",
+    "lint": "yarn eslint && yarn prettier:check"
   },
   "keywords": [],
   "author": "",
@@ -34,5 +38,14 @@
     "hardhat": "^2.3.0",
     "snarkjs": "git+https://github.com/tornadocash/snarkjs.git#c103e3bf10e95e2e9bbf0f7952ed13812f8e39d3",
     "tmp-promise": "^3.0.2"
+  },
+  "devDependencies": {
+    "babel-eslint": "^10.1.0",
+    "eslint": "^7.28.0",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-plugin-prettier": "^3.4.0",
+    "prettier": "^2.3.1",
+    "prettier-plugin-solidity": "^1.0.0-beta.13",
+    "solhint-plugin-prettier": "^0.0.5"
   }
 }
diff --git a/scripts/deploy.js b/scripts/deploy.js
index 92c64a0..be84658 100644
--- a/scripts/deploy.js
+++ b/scripts/deploy.js
@@ -29,7 +29,7 @@ async function main() {
 
   const Pool = await ethers.getContractFactory('TornadoPool')
   const tornado = await Pool.deploy(verifier2.address, verifier16.address, toFixedHex(root))
-  console.log("TornadoPool's address ", tornado.address)
+  console.log(`TornadoPool address: ${tornado.address}`)
 }
 
 main()
diff --git a/src/index.js b/src/index.js
index 5bf7dbf..1df96ab 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,7 +2,7 @@
 const MerkleTree = require('fixed-merkle-tree')
 const { ethers } = require('hardhat')
 const { BigNumber } = ethers
-const { toFixedHex, poseidonHash2, getExtDataHash, FIELD_SIZE, packEncryptedMessage } = require('./utils')
+const { toFixedHex, poseidonHash2, getExtDataHash, FIELD_SIZE } = require('./utils')
 const Utxo = require('./utxo')
 
 const { prove } = require('./prover')
@@ -109,10 +109,10 @@ async function transaction({ tornadoPool, inputs = [], outputs = [], fee = 0, re
   if (inputs.length > 16 || outputs.length > 2) {
     throw new Error('Incorrect inputs/outputs count')
   }
-  while(inputs.length !== 2 && inputs.length < 16) {
+  while (inputs.length !== 2 && inputs.length < 16) {
     inputs.push(new Utxo())
   }
-  while(outputs.length < 2) {
+  while (outputs.length < 2) {
     outputs.push(new Utxo())
   }
 
diff --git a/src/keypair.js b/src/keypair.js
index 2b1a3da..e1ad4cb 100644
--- a/src/keypair.js
+++ b/src/keypair.js
@@ -85,7 +85,9 @@ class Keypair {
    * @returns {string} a hex string with encrypted data
    */
   encrypt(bytes) {
-    return packEncryptedMessage(encrypt(this.encryptionKey, { data: bytes.toString('base64') }, 'x25519-xsalsa20-poly1305'))
+    return packEncryptedMessage(
+      encrypt(this.encryptionKey, { data: bytes.toString('base64') }, 'x25519-xsalsa20-poly1305'),
+    )
   }
 
   /**
diff --git a/src/prover.js b/src/prover.js
index 4c7aa8e..b8d89be 100644
--- a/src/prover.js
+++ b/src/prover.js
@@ -9,8 +9,13 @@ const exec = util.promisify(require('child_process').exec)
 const { toFixedHex } = require('./utils')
 
 async function prove(input, keyBasePath) {
-  const {proof} = await groth16.fullProve(utils.stringifyBigInts(input), `${keyBasePath}.wasm`, `${keyBasePath}.zkey`);
-  return '0x' +
+  const { proof } = await groth16.fullProve(
+    utils.stringifyBigInts(input),
+    `${keyBasePath}.wasm`,
+    `${keyBasePath}.zkey`,
+  )
+  return (
+    '0x' +
     toFixedHex(proof.pi_a[0]).slice(2) +
     toFixedHex(proof.pi_a[1]).slice(2) +
     toFixedHex(proof.pi_b[0][1]).slice(2) +
@@ -19,6 +24,7 @@ async function prove(input, keyBasePath) {
     toFixedHex(proof.pi_b[1][0]).slice(2) +
     toFixedHex(proof.pi_c[0]).slice(2) +
     toFixedHex(proof.pi_c[1]).slice(2)
+  )
 }
 
 function proveZkutil(input, keyBasePath) {
@@ -53,4 +59,4 @@ function proveZkutil(input, keyBasePath) {
   })
 }
 
-module.exports = { prove }
+module.exports = { prove, proveZkutil }
diff --git a/src/utxo.js b/src/utxo.js
index 0d7d564..7bddfa8 100644
--- a/src/utxo.js
+++ b/src/utxo.js
@@ -11,7 +11,7 @@ class Utxo {
    * @param {Keypair} keypair
    * @param {number|null} index UTXO index in the merkle tree
    */
-  constructor({ amount = 0, keypair = new Keypair(), blinding = randomBN(), index = null} = {}) {
+  constructor({ amount = 0, keypair = new Keypair(), blinding = randomBN(), index = null } = {}) {
     this.amount = BigNumber.from(amount)
     this.blinding = BigNumber.from(blinding)
     this.keypair = keypair
@@ -37,7 +37,13 @@ class Utxo {
    */
   getNullifier() {
     if (!this._nullifier) {
-      if (this.amount > 0 && (this.index === undefined || this.keypair.privkey === undefined || this.keypair.privkey === null)) {
+      if (
+        this.amount > 0 &&
+        (this.index === undefined ||
+          this.index === null ||
+          this.keypair.privkey === undefined ||
+          this.keypair.privkey === null)
+      ) {
         throw new Error('Can not compute nullifier without utxo index or private key')
       }
       this._nullifier = poseidonHash([this.getCommitment(), this.index || 0, this.keypair.privkey || 0])
diff --git a/test/full.test.js b/test/full.test.js
index 9690e77..08c8f7a 100644
--- a/test/full.test.js
+++ b/test/full.test.js
@@ -1,14 +1,8 @@
 /* global ethers */
 const { expect, should } = require('chai')
 should()
-const { BigNumber } = ethers
 
-const {
-  poseidonHash2,
-  toFixedHex,
-  takeSnapshot,
-  revertSnapshot,
-} = require('../src/utils')
+const { poseidonHash2, toFixedHex, takeSnapshot, revertSnapshot } = require('../src/utils')
 const Utxo = require('../src/utxo')
 
 const MERKLE_TREE_HEIGHT = 5
@@ -55,13 +49,16 @@ describe('TornadoPool', () => {
     await transaction({ tornadoPool, outputs: [aliceDepositUtxo] })
 
     // Bob gives Alice address to send some eth inside the shielded pool
-    const bobKeypair = new Keypair()
-    const bobAddress = bobKeypair.address()
+    const bobKeypair = new Keypair() // contains private and public keys
+    const bobAddress = bobKeypair.address() // contains only public key
 
     // Alice sends some funds to Bob
     const bobSendAmount = 3e6
     const bobSendUtxo = new Utxo({ amount: bobSendAmount, keypair: Keypair.fromString(bobAddress) })
-    const aliceChangeUtxo = new Utxo({ amount: aliceDepositAmount - bobSendAmount, keypair: aliceDepositUtxo.keypair })
+    const aliceChangeUtxo = new Utxo({
+      amount: aliceDepositAmount - bobSendAmount,
+      keypair: aliceDepositUtxo.keypair,
+    })
     await transaction({ tornadoPool, inputs: [aliceDepositUtxo], outputs: [bobSendUtxo, aliceChangeUtxo] })
 
     // Bob parses chain to detect incoming funds
@@ -75,7 +72,12 @@ describe('TornadoPool', () => {
     const bobWithdrawAmount = 2e6
     const bobEthAddress = '0xDeaD00000000000000000000000000000000BEEf'
     const bobChangeUtxo = new Utxo({ amount: bobSendAmount - bobWithdrawAmount, keypair: bobKeypair })
-    await transaction({ tornadoPool, inputs: [bobReceiveUtxo], outputs: [bobChangeUtxo], recipient: bobEthAddress })
+    await transaction({
+      tornadoPool,
+      inputs: [bobReceiveUtxo],
+      outputs: [bobChangeUtxo],
+      recipient: bobEthAddress,
+    })
 
     const bobBalance = await ethers.provider.getBalance(bobEthAddress)
     expect(bobBalance).to.be.equal(bobWithdrawAmount)
diff --git a/yarn.lock b/yarn.lock
index 582f91f..93273ce 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,13 @@
 # yarn lockfile v1
 
 
+"@babel/code-frame@7.12.11":
+  version "7.12.11"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.12.11.tgz#f4ad435aa263db935b8f10f2c552d23fb716a63f"
+  integrity sha512-Zt1yodBx1UcyiePMSkWnU4hPqhwq7hGi2nFL1LeA3EUl+q2LQx16MISgJ0+z7dnmgvP9QtIleuETGOiOH1RcIw==
+  dependencies:
+    "@babel/highlight" "^7.10.4"
+
 "@babel/code-frame@^7.0.0":
   version "7.12.13"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.12.13.tgz#dcfc826beef65e75c50e21d3837d7d95798dd658"
@@ -9,11 +16,71 @@
   dependencies:
     "@babel/highlight" "^7.12.13"
 
+"@babel/code-frame@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.14.5.tgz#23b08d740e83f49c5e59945fbf1b43e80bbf4edb"
+  integrity sha512-9pzDqyc6OLDaqe+zbACgFkb6fKMNG6CObKpnYXChRsvYGyEdc7CA2BaqeOM+vOtCS5ndmJicPJhKAwYRI6UfFw==
+  dependencies:
+    "@babel/highlight" "^7.14.5"
+
+"@babel/generator@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.14.5.tgz#848d7b9f031caca9d0cd0af01b063f226f52d785"
+  integrity sha512-y3rlP+/G25OIX3mYKKIOlQRcqj7YgrvHxOLbVmyLJ9bPmi5ttvUmpydVjcFjZphOktWuA7ovbx91ECloWTfjIA==
+  dependencies:
+    "@babel/types" "^7.14.5"
+    jsesc "^2.5.1"
+    source-map "^0.5.0"
+
+"@babel/helper-function-name@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.14.5.tgz#89e2c474972f15d8e233b52ee8c480e2cfcd50c4"
+  integrity sha512-Gjna0AsXWfFvrAuX+VKcN/aNNWonizBj39yGwUzVDVTlMYJMK2Wp6xdpy72mfArFq5uK+NOuexfzZlzI1z9+AQ==
+  dependencies:
+    "@babel/helper-get-function-arity" "^7.14.5"
+    "@babel/template" "^7.14.5"
+    "@babel/types" "^7.14.5"
+
+"@babel/helper-get-function-arity@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.14.5.tgz#25fbfa579b0937eee1f3b805ece4ce398c431815"
+  integrity sha512-I1Db4Shst5lewOM4V+ZKJzQ0JGGaZ6VY1jYvMghRjqs6DWgxLCIyFt30GlnKkfUeFLpJt2vzbMVEXVSXlIFYUg==
+  dependencies:
+    "@babel/types" "^7.14.5"
+
+"@babel/helper-hoist-variables@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-hoist-variables/-/helper-hoist-variables-7.14.5.tgz#e0dd27c33a78e577d7c8884916a3e7ef1f7c7f8d"
+  integrity sha512-R1PXiz31Uc0Vxy4OEOm07x0oSjKAdPPCh3tPivn/Eo8cvz6gveAeuyUUPB21Hoiif0uoPQSSdhIPS3352nvdyQ==
+  dependencies:
+    "@babel/types" "^7.14.5"
+
+"@babel/helper-split-export-declaration@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.14.5.tgz#22b23a54ef51c2b7605d851930c1976dd0bc693a"
+  integrity sha512-hprxVPu6e5Kdp2puZUmvOGjaLv9TCe58E/Fl6hRq4YiVQxIcNvuq6uTM2r1mT/oPskuS9CgR+I94sqAYv0NGKA==
+  dependencies:
+    "@babel/types" "^7.14.5"
+
 "@babel/helper-validator-identifier@^7.14.0":
   version "7.14.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.14.0.tgz#d26cad8a47c65286b15df1547319a5d0bcf27288"
   integrity sha512-V3ts7zMSu5lfiwWDVWzRDGIN+lnCEUdaXgtVHJgLb1rGaA6jMrtB9EmE7L18foXJIE8Un/A/h6NJfGQp/e1J4A==
 
+"@babel/helper-validator-identifier@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.14.5.tgz#d0f0e277c512e0c938277faa85a3968c9a44c0e8"
+  integrity sha512-5lsetuxCLilmVGyiLEfoHBRX8UCFD+1m2x3Rj97WrW3V7H3u4RWRXA4evMjImCsin2J2YT0QaVDGf+z8ondbAg==
+
+"@babel/highlight@^7.10.4", "@babel/highlight@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.14.5.tgz#6861a52f03966405001f6aa534a01a24d99e8cd9"
+  integrity sha512-qf9u2WFWVV0MppaL877j2dBtQIDgmidgjGk5VIMw3OadXvYaXn66U1BFlH2t4+t3i+8PhedppRv+i40ABzd+gg==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.14.5"
+    chalk "^2.0.0"
+    js-tokens "^4.0.0"
+
 "@babel/highlight@^7.12.13":
   version "7.14.0"
   resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.14.0.tgz#3197e375711ef6bf834e67d0daec88e4f46113cf"
@@ -23,6 +90,43 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
+"@babel/parser@^7.14.5", "@babel/parser@^7.7.0":
+  version "7.14.6"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.14.6.tgz#d85cc68ca3cac84eae384c06f032921f5227f4b2"
+  integrity sha512-oG0ej7efjEXxb4UgE+klVx+3j4MVo+A2vCzm7OUN4CLo6WhQ+vSOD2yJ8m7B+DghObxtLxt3EfgMWpq+AsWehQ==
+
+"@babel/template@^7.14.5":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.14.5.tgz#a9bc9d8b33354ff6e55a9c60d1109200a68974f4"
+  integrity sha512-6Z3Po85sfxRGachLULUhOmvAaOo7xCvqGQtxINai2mEGPFm6pQ4z5QInFnUrRpfoSV60BnjyF5F3c+15fxFV1g==
+  dependencies:
+    "@babel/code-frame" "^7.14.5"
+    "@babel/parser" "^7.14.5"
+    "@babel/types" "^7.14.5"
+
+"@babel/traverse@^7.7.0":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.14.5.tgz#c111b0f58afab4fea3d3385a406f692748c59870"
+  integrity sha512-G3BiS15vevepdmFqmUc9X+64y0viZYygubAMO8SvBmKARuF6CPSZtH4Ng9vi/lrWlZFGe3FWdXNy835akH8Glg==
+  dependencies:
+    "@babel/code-frame" "^7.14.5"
+    "@babel/generator" "^7.14.5"
+    "@babel/helper-function-name" "^7.14.5"
+    "@babel/helper-hoist-variables" "^7.14.5"
+    "@babel/helper-split-export-declaration" "^7.14.5"
+    "@babel/parser" "^7.14.5"
+    "@babel/types" "^7.14.5"
+    debug "^4.1.0"
+    globals "^11.1.0"
+
+"@babel/types@^7.14.5", "@babel/types@^7.7.0":
+  version "7.14.5"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.14.5.tgz#3bb997ba829a2104cedb20689c4a5b8121d383ff"
+  integrity sha512-M/NzBpEL95I5Hh4dwhin5JlE7EzO5PHMAuzjxss3tiOBD46KfQvVedN/3jEPZvdRvtsK2222XfdHogNIttFgcg==
+  dependencies:
+    "@babel/helper-validator-identifier" "^7.14.5"
+    to-fast-properties "^2.0.0"
+
 "@ensdomains/ens@^0.4.4":
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/@ensdomains/ens/-/ens-0.4.5.tgz#e0aebc005afdc066447c6e22feb4eda89a5edbfc"
@@ -39,6 +143,21 @@
   resolved "https://registry.yarnpkg.com/@ensdomains/resolver/-/resolver-0.2.4.tgz#c10fe28bf5efbf49bff4666d909aed0265efbc89"
   integrity sha512-bvaTH34PMCbv6anRa9I/0zjLJgY4EuznbEMgbV77JBCQ9KNC46rzi0avuxpOfu+xDjPEtSFGqVEOr5GlUSGudA==
 
+"@eslint/eslintrc@^0.4.2":
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-0.4.2.tgz#f63d0ef06f5c0c57d76c4ab5f63d3835c51b0179"
+  integrity sha512-8nmGq/4ycLpIwzvhI4tNDmQztZ8sp+hI7cyG8i1nQDhkAbRzHpXPidRAHlNvCZQpJTKw5ItIpMw9RSToGF00mg==
+  dependencies:
+    ajv "^6.12.4"
+    debug "^4.1.1"
+    espree "^7.3.0"
+    globals "^13.9.0"
+    ignore "^4.0.6"
+    import-fresh "^3.2.1"
+    js-yaml "^3.13.1"
+    minimatch "^3.0.4"
+    strip-json-comments "^3.1.1"
+
 "@ethereum-waffle/chai@^3.3.0":
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/@ethereum-waffle/chai/-/chai-3.3.1.tgz#3f20b810d0fa516f19af93c50c3be1091333fa8e"
@@ -691,6 +810,13 @@
   resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.11.1.tgz#fa840af64840c930f24a9c82c08d4a092a068add"
   integrity sha512-H8BSBoKE8EubJa0ONqecA2TviT3TnHeC4NpgnAHSUiuhZoQBfPB4L2P9bs8R6AoTW10Endvh3vc+fomVMIDIYQ==
 
+"@solidity-parser/parser@^0.13.2":
+  version "0.13.2"
+  resolved "https://registry.yarnpkg.com/@solidity-parser/parser/-/parser-0.13.2.tgz#b6c71d8ca0b382d90a7bbed241f9bc110af65cbe"
+  integrity sha512-RwHnpRnfrnD2MSPveYoPh8nhofEvX7fgjHk1Oq+NNvCcLx4r1js91CO9o+F/F3fBzOCyvm8kKRTriFICX/odWw==
+  dependencies:
+    antlr4ts "^0.5.0-alpha.4"
+
 "@szmarczak/http-timer@^1.1.2":
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/@szmarczak/http-timer/-/http-timer-1.1.2.tgz#b1665e2c461a2cd92f4c1bbf50d5454de0d4b421"
@@ -896,7 +1022,7 @@ accepts@~1.3.7:
     mime-types "~2.1.24"
     negotiator "0.6.2"
 
-acorn-jsx@^5.0.0:
+acorn-jsx@^5.0.0, acorn-jsx@^5.3.1:
   version "5.3.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.3.1.tgz#fc8661e11b7ac1539c47dbfea2e72b3af34d267b"
   integrity sha512-K0Ptm/47OKfQRpNQ2J/oIN/3QYiK6FwW+eJbILhsdxh2WTLdl+30o8aGdTbm5JbffpFFAg/g+zi1E+jvJha5ng==
@@ -906,6 +1032,11 @@ acorn@^6.0.7:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.4.2.tgz#35866fd710528e92de10cf06016498e47e39e1e6"
   integrity sha512-XtGIhXwF8YM8bJhGxG5kXgjkEuNGLTkoYqVE+KMR+aspr4KGYmKYg7yUe3KghyQ9yheNwLnjmzh/7+gfDBmHCQ==
 
+acorn@^7.4.0:
+  version "7.4.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.4.1.tgz#feaed255973d2e77555b83dbc08851a6c63520fa"
+  integrity sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==
+
 adm-zip@^0.4.16:
   version "0.4.16"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.16.tgz#cf4c508fdffab02c269cbc7f471a875f05570365"
@@ -928,7 +1059,7 @@ agent-base@6:
   dependencies:
     debug "4"
 
-ajv@^6.10.2, ajv@^6.12.3, ajv@^6.9.1:
+ajv@^6.10.0, ajv@^6.10.2, ajv@^6.12.3, ajv@^6.12.4, ajv@^6.9.1:
   version "6.12.6"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.6.tgz#baf5a62e802b07d977034586f8c3baf5adf26df4"
   integrity sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==
@@ -938,6 +1069,16 @@ ajv@^6.10.2, ajv@^6.12.3, ajv@^6.9.1:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ajv@^8.0.1:
+  version "8.6.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-8.6.0.tgz#60cc45d9c46a477d80d92c48076d972c342e5720"
+  integrity sha512-cnUG4NSBiM4YFBxgZIj/In3/6KX+rQ2l2YPRVcvAMQGWEPKuXoPIhxzwqh31jA3IPbI4qEOp/5ILI4ynioXsGQ==
+  dependencies:
+    fast-deep-equal "^3.1.1"
+    json-schema-traverse "^1.0.0"
+    require-from-string "^2.0.2"
+    uri-js "^4.2.2"
+
 ansi-colors@3.2.3:
   version "3.2.3"
   resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.3.tgz#57d35b8686e851e2cc04c403f1c00203976a1813"
@@ -999,6 +1140,11 @@ ansi-styles@^4.0.0, ansi-styles@^4.1.0:
   dependencies:
     color-convert "^2.0.1"
 
+antlr4ts@^0.5.0-alpha.4:
+  version "0.5.0-alpha.4"
+  resolved "https://registry.yarnpkg.com/antlr4ts/-/antlr4ts-0.5.0-alpha.4.tgz#71702865a87478ed0b40c0709f422cf14d51652a"
+  integrity sha512-WPQDt1B74OfPv/IMS2ekXAKkTZIHl88uMetg6q3OTqgFxZ/dxDXI0EWLyZid/1Pe6hTftyg5N7gel5wNAGxXyQ==
+
 anymatch@~3.1.1:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.2.tgz#c0557c096af32f106198f4f4e2a383537e378716"
@@ -1095,6 +1241,11 @@ astral-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
   integrity sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==
 
+astral-regex@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-2.0.0.tgz#483143c567aeed4785759c0865786dc77d7d2e31"
+  integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
+
 async-eventemitter@^0.2.2, async-eventemitter@^0.2.4:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/async-eventemitter/-/async-eventemitter-0.2.4.tgz#f5e7c8ca7d3e46aab9ec40a292baf686a0bafaca"
@@ -1190,6 +1341,18 @@ babel-core@^6.0.14, babel-core@^6.26.0:
     slash "^1.0.0"
     source-map "^0.5.7"
 
+babel-eslint@^10.1.0:
+  version "10.1.0"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-10.1.0.tgz#6968e568a910b78fb3779cdd8b6ac2f479943232"
+  integrity sha512-ifWaTHQ0ce+448CYop8AdrQiBsGrnC+bMgfyKFdi6EsPLTAWG+QfyDeM6OH+FmWnKvEq5NnBMLvlBUPKQZoDSg==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/parser" "^7.7.0"
+    "@babel/traverse" "^7.7.0"
+    "@babel/types" "^7.7.0"
+    eslint-visitor-keys "^1.0.0"
+    resolve "^1.12.0"
+
 babel-generator@^6.26.0:
   version "6.26.1"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.1.tgz#1844408d3b8f0d35a404ea7ac180f087a601bd90"
@@ -2570,6 +2733,15 @@ cross-spawn@^6.0.0, cross-spawn@^6.0.5:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+cross-spawn@^7.0.2:
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
+  integrity sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==
+  dependencies:
+    path-key "^3.1.0"
+    shebang-command "^2.0.0"
+    which "^2.0.1"
+
 crypto-browserify@3.12.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
@@ -2616,7 +2788,7 @@ debug@3.2.6:
   dependencies:
     ms "^2.1.1"
 
-debug@4, debug@4.3.1, debug@^4.0.1, debug@^4.1.1:
+debug@4, debug@4.3.1, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.1.tgz#f0d229c505e0c6d8c49ac553d1b13dc183f6b2ee"
   integrity sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==
@@ -2671,7 +2843,7 @@ deep-equal@~1.1.1:
     object-keys "^1.1.1"
     regexp.prototype.flags "^1.2.0"
 
-deep-is@~0.1.3:
+deep-is@^0.1.3, deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
@@ -2864,6 +3036,11 @@ emoji-regex@^8.0.0:
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-8.0.0.tgz#e818fd69ce5ccfcb404594f842963bf53164cc37"
   integrity sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==
 
+emoji-regex@^9.2.2:
+  version "9.2.2"
+  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-9.2.2.tgz#840c8803b0d8047f4ff0cf963176b32d4ef3ed72"
+  integrity sha512-L18DaJsXSUk2+42pv8mLs5jJT2hqFkFE4j21wOmgbUqsZ2hL72NsUU785g9RXgo3s0ZNgVl42TiHp3ZtOv/Vyg==
+
 encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
@@ -2904,7 +3081,7 @@ end-of-stream@^1.1.0:
   dependencies:
     once "^1.4.0"
 
-enquirer@^2.3.0:
+enquirer@^2.3.0, enquirer@^2.3.5:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/enquirer/-/enquirer-2.3.6.tgz#2a7fe5dd634a1e4125a975ec994ff5456dc3734d"
   integrity sha512-yjNnPr315/FjS4zIsUxYguYUPP2e1NK4d7E7ZOLiyYCcbFBiTMyID+2wvm2w6+pZ/odMA7cRkjhsPbltwBOrLg==
@@ -3002,11 +3179,23 @@ escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
   integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
 
-escape-string-regexp@4.0.0:
+escape-string-regexp@4.0.0, escape-string-regexp@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz#14ba83a5d373e3d311e5afca29cf5bfad965bf34"
   integrity sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==
 
+eslint-config-prettier@^8.3.0:
+  version "8.3.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-8.3.0.tgz#f7471b20b6fe8a9a9254cc684454202886a2dd7a"
+  integrity sha512-BgZuLUSeKzvlL/VUjx/Yb787VQ26RU3gGjA3iiFvdsp/2bMfVIWUVP7tjxtjS0e+HP409cPlPvNkQloz8C91ew==
+
+eslint-plugin-prettier@^3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-3.4.0.tgz#cdbad3bf1dbd2b177e9825737fe63b476a08f0c7"
+  integrity sha512-UDK6rJT6INSfcOo545jiaOwB701uAIt2/dR7WnFQoGCVl1/EMqdANBmwUaqqQ45aXprsTGzSa39LI1PyuRBxxw==
+  dependencies:
+    prettier-linter-helpers "^1.0.0"
+
 eslint-scope@^4.0.3:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-4.0.3.tgz#ca03833310f6889a3264781aa82e63eb9cfe7848"
@@ -3015,6 +3204,14 @@ eslint-scope@^4.0.3:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-scope@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-5.1.1.tgz#e786e59a66cb92b3f6c1fb0d508aab174848f48c"
+  integrity sha512-2NxwbF/hZ0KpepYN0cNbo+FN6XoK7GaHlQhgx/hIZl6Va0bF45RQOOwhLIy8lQDbuCiadSLCBnH2CFYquit5bw==
+  dependencies:
+    esrecurse "^4.3.0"
+    estraverse "^4.1.1"
+
 eslint-utils@^1.3.1:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.4.3.tgz#74fec7c54d0776b6f67e0251040b5806564e981f"
@@ -3022,11 +3219,23 @@ eslint-utils@^1.3.1:
   dependencies:
     eslint-visitor-keys "^1.1.0"
 
-eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0:
+eslint-utils@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-2.1.0.tgz#d2de5e03424e707dc10c74068ddedae708741b27"
+  integrity sha512-w94dQYoauyvlDc43XnGB8lU3Zt713vNChgt4EWwhXAP2XkBvndfxF0AgIqKOOasjPIPzj9JqgwkwbCYD0/V3Zg==
+  dependencies:
+    eslint-visitor-keys "^1.1.0"
+
+eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0, eslint-visitor-keys@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.3.0.tgz#30ebd1ef7c2fdff01c3a4f151044af25fab0523e"
   integrity sha512-6J72N8UNa462wa/KFODt/PJ3IU60SDpC3QXC1Hjc1BXXpfL2C9R5+AU7jhe0F6GREqVMh4Juu+NY7xn+6dipUQ==
 
+eslint-visitor-keys@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-2.1.0.tgz#f65328259305927392c938ed44eb0a5c9b2bd303"
+  integrity sha512-0rSmRBzXgDzIsD6mGdJgevzgezI534Cer5L/vyMX0kHzT/jiB43jRhd9YUlMGYLQy2zprNmoT8qasCGtY+QaKw==
+
 eslint@^5.16.0:
   version "5.16.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.16.0.tgz#a1e3ac1aae4a3fbd8296fcf8f7ab7314cbb6abea"
@@ -3069,6 +3278,51 @@ eslint@^5.16.0:
     table "^5.2.3"
     text-table "^0.2.0"
 
+eslint@^7.28.0:
+  version "7.28.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.28.0.tgz#435aa17a0b82c13bb2be9d51408b617e49c1e820"
+  integrity sha512-UMfH0VSjP0G4p3EWirscJEQ/cHqnT/iuH6oNZOB94nBjWbMnhGEPxsZm1eyIW0C/9jLI0Fow4W5DXLjEI7mn1g==
+  dependencies:
+    "@babel/code-frame" "7.12.11"
+    "@eslint/eslintrc" "^0.4.2"
+    ajv "^6.10.0"
+    chalk "^4.0.0"
+    cross-spawn "^7.0.2"
+    debug "^4.0.1"
+    doctrine "^3.0.0"
+    enquirer "^2.3.5"
+    escape-string-regexp "^4.0.0"
+    eslint-scope "^5.1.1"
+    eslint-utils "^2.1.0"
+    eslint-visitor-keys "^2.0.0"
+    espree "^7.3.1"
+    esquery "^1.4.0"
+    esutils "^2.0.2"
+    fast-deep-equal "^3.1.3"
+    file-entry-cache "^6.0.1"
+    functional-red-black-tree "^1.0.1"
+    glob-parent "^5.1.2"
+    globals "^13.6.0"
+    ignore "^4.0.6"
+    import-fresh "^3.0.0"
+    imurmurhash "^0.1.4"
+    is-glob "^4.0.0"
+    js-yaml "^3.13.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
+    levn "^0.4.1"
+    lodash.merge "^4.6.2"
+    minimatch "^3.0.4"
+    natural-compare "^1.4.0"
+    optionator "^0.9.1"
+    progress "^2.0.0"
+    regexpp "^3.1.0"
+    semver "^7.2.1"
+    strip-ansi "^6.0.0"
+    strip-json-comments "^3.1.0"
+    table "^6.0.9"
+    text-table "^0.2.0"
+    v8-compile-cache "^2.0.3"
+
 espree@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/espree/-/espree-5.0.1.tgz#5d6526fa4fc7f0788a5cf75b15f30323e2f81f7a"
@@ -3078,19 +3332,28 @@ espree@^5.0.1:
     acorn-jsx "^5.0.0"
     eslint-visitor-keys "^1.0.0"
 
+espree@^7.3.0, espree@^7.3.1:
+  version "7.3.1"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-7.3.1.tgz#f2df330b752c6f55019f8bd89b7660039c1bbbb6"
+  integrity sha512-v3JCNCE64umkFpmkFGqzVKsOT0tN1Zr+ueqLZfpV1Ob8e+CEgPWa+OxCoGH3tnhimMKIaBm4m/vaRpJ/krRz2g==
+  dependencies:
+    acorn "^7.4.0"
+    acorn-jsx "^5.3.1"
+    eslint-visitor-keys "^1.3.0"
+
 esprima@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
   integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
 
-esquery@^1.0.1:
+esquery@^1.0.1, esquery@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.4.0.tgz#2148ffc38b82e8c7057dfed48425b3e61f0f24a5"
   integrity sha512-cCDispWt5vHHtwMY2YrAQ4ibFkAL8RbH5YGBnZBc90MolvvfkkQcJro/aZiAQUlQ3qgrYS6D6v8Gc5G5CQsc9w==
   dependencies:
     estraverse "^5.1.0"
 
-esrecurse@^4.1.0:
+esrecurse@^4.1.0, esrecurse@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.3.0.tgz#7ad7964d679abb28bee72cec63758b1c5d2c9921"
   integrity sha512-KmfKL3b6G+RXvP8N1vr3Tq1kL/oCFgn2NYXEtqP8/L3pKapUA4G8cFVaoF3SU323CD4XypR/ffioHmkti6/Tag==
@@ -3727,17 +3990,22 @@ fake-merkle-patricia-tree@^1.0.1:
   dependencies:
     checkpoint-store "^1.1.0"
 
-fast-deep-equal@^3.1.1:
+fast-deep-equal@^3.1.1, fast-deep-equal@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
   integrity sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==
 
+fast-diff@^1.1.2:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.2.0.tgz#73ee11982d86caaf7959828d519cfe927fac5f03"
+  integrity sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==
+
 fast-json-stable-stringify@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz#874bf69c6f404c2b5d99c481341399fd55892633"
   integrity sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw==
 
-fast-levenshtein@~2.0.6:
+fast-levenshtein@^2.0.6, fast-levenshtein@~2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
   integrity sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=
@@ -3852,6 +4120,13 @@ file-entry-cache@^5.0.1:
   dependencies:
     flat-cache "^2.0.1"
 
+file-entry-cache@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-6.0.1.tgz#211b2dd9659cb0394b073e7323ac3c933d522027"
+  integrity sha512-7Gps/XWymbLk2QLYK4NzpMOrYjMhdIxXuIvy2QBsLE6ljuodKvdkWs/cpyJJ3CVIVpH0Oi1Hvg1ovbMzLdFBBg==
+  dependencies:
+    flat-cache "^3.0.4"
+
 file-uri-to-path@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
@@ -3972,6 +4247,14 @@ flat-cache@^2.0.1:
     rimraf "2.6.3"
     write "1.0.3"
 
+flat-cache@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-3.0.4.tgz#61b0338302b2fe9f957dcc32fc2a87f1c3048b11"
+  integrity sha512-dm9s5Pw7Jc0GvMYbshN6zchCA9RgQlzzEZX3vylR9IqFfS8XciblUXOKfW6SiuJ0e13eDYZoZV5wdrev7P3Nwg==
+  dependencies:
+    flatted "^3.1.0"
+    rimraf "^3.0.2"
+
 flat@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/flat/-/flat-4.1.1.tgz#a392059cc382881ff98642f5da4dde0a959f309b"
@@ -3989,6 +4272,11 @@ flatted@^2.0.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.2.tgz#4575b21e2bcee7434aa9be662f4b7b5f9c2b5138"
   integrity sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==
 
+flatted@^3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.1.1.tgz#c4b489e80096d9df1dfc97c79871aea7c617c469"
+  integrity sha512-zAoAQiudy+r5SvnSw3KJy5os/oRJYHzrzja/tBDqrZtNhUw8bt6y8OBzMWcjWr+8liV8Eb6yOhw8WZ7VFZ5ZzA==
+
 flow-stoplight@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/flow-stoplight/-/flow-stoplight-1.0.0.tgz#4a292c5bcff8b39fa6cc0cb1a853d86f27eeff7b"
@@ -4224,7 +4512,7 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
-glob-parent@~5.1.0:
+glob-parent@^5.1.2, glob-parent@~5.1.0:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-5.1.2.tgz#869832c58034fe68a4093c17dc15e8340d8401c4"
   integrity sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==
@@ -4275,11 +4563,18 @@ global@~4.4.0:
     min-document "^2.19.0"
     process "^0.11.10"
 
-globals@^11.7.0:
+globals@^11.1.0, globals@^11.7.0:
   version "11.12.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
   integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
 
+globals@^13.6.0, globals@^13.9.0:
+  version "13.9.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-13.9.0.tgz#4bf2bf635b334a173fb1daf7c5e6b218ecdc06cb"
+  integrity sha512-74/FduwI/JaIrr1H8e71UbDE+5x7pIPs1C2rrwC52SszOo043CsWOZEMW7o2Y58xwm9b+0RBKDxY5n2sUpEFxA==
+  dependencies:
+    type-fest "^0.20.2"
+
 globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
@@ -4617,7 +4912,7 @@ immutable@^4.0.0-rc.12:
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.0.0-rc.12.tgz#ca59a7e4c19ae8d9bf74a97bdf0f6e2f2a5d0217"
   integrity sha512-0M2XxkZLx/mi3t8NVwIm1g8nHoEmM9p9UBl/G9k4+hm0kBgOVdMV/B3CY5dQ8qG8qc80NN4gDV4HQv6FTJ5q7A==
 
-import-fresh@^3.0.0:
+import-fresh@^3.0.0, import-fresh@^3.2.1:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-3.3.0.tgz#37162c25fcb9ebaa2e6e53d5b4d88ce17d9e0c2b"
   integrity sha512-veYYhQa+D1QBKznvhUHxb8faxlrwUnxseDAbAp457E0wLNio2bOSKnjYDhMj+YiAq61xrMGhQk9iXVk5FzgQMw==
@@ -4866,7 +5161,7 @@ is-generator-function@^1.0.7:
   resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.9.tgz#e5f82c2323673e7fcad3d12858c83c4039f6399c"
   integrity sha512-ZJ34p1uvIfptHCN7sFTjGibB9/oBg17sHqzDLfuwhvmN/qLVvIQXRQ8licZQ35WJ8KuEQt/etnnzQFI9C9Ue/A==
 
-is-glob@^4.0.1, is-glob@~4.0.1:
+is-glob@^4.0.0, is-glob@^4.0.1, is-glob@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.1.tgz#7567dbe9f2f5e2467bc77ab83c4a29482407a5dc"
   integrity sha512-5G0tKtBTFImOqDnLB2hG6Bp2qcKEFduo4tZu9MT/H6NQv/ghhy30o55ufafxJ/LdH79LLs2Kfrn85TLKyA7BUg==
@@ -5082,7 +5377,7 @@ js-yaml@4.0.0:
   dependencies:
     argparse "^2.0.1"
 
-js-yaml@^3.13.0:
+js-yaml@^3.13.0, js-yaml@^3.13.1:
   version "3.14.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
   integrity sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==
@@ -5100,6 +5395,11 @@ jsesc@^1.3.0:
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
   integrity sha1-RsP+yMGJKxKwgz25vHYiF226s0s=
 
+jsesc@^2.5.1:
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.2.tgz#80564d2e483dacf6e8ef209650a67df3f0c283a4"
+  integrity sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==
+
 jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
@@ -5139,6 +5439,11 @@ json-schema-traverse@^0.4.1:
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
   integrity sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==
 
+json-schema-traverse@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz#ae7bcb3656ab77a73ba5c49bf654f38e6b6860e2"
+  integrity sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==
+
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
@@ -5477,6 +5782,14 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+levn@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/levn/-/levn-0.4.1.tgz#ae4562c007473b932a6200d403268dd2fffc6ade"
+  integrity sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ==
+  dependencies:
+    prelude-ls "^1.2.1"
+    type-check "~0.4.0"
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -5523,6 +5836,21 @@ lodash.assign@^4.0.3, lodash.assign@^4.0.6:
   resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
   integrity sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=
 
+lodash.clonedeep@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
+  integrity sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8=
+
+lodash.merge@^4.6.2:
+  version "4.6.2"
+  resolved "https://registry.yarnpkg.com/lodash.merge/-/lodash.merge-4.6.2.tgz#558aa53b43b661e1925a0afdfa36a9a1085fe57a"
+  integrity sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==
+
+lodash.truncate@^4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/lodash.truncate/-/lodash.truncate-4.4.2.tgz#5a350da0b1113b837ecfffd5812cbe58d6eae193"
+  integrity sha1-WjUNoLERO4N+z//VgSy+WNbq4ZM=
+
 lodash@4.17.20:
   version "4.17.20"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
@@ -5593,6 +5921,13 @@ lru-cache@^3.2.0:
   dependencies:
     pseudomap "^1.0.1"
 
+lru-cache@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
+  integrity sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==
+  dependencies:
+    yallist "^4.0.0"
+
 lru_map@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/lru_map/-/lru_map-0.3.3.tgz#b5c8351b9464cbd750335a79650a0ec0e56118dd"
@@ -6305,6 +6640,18 @@ optionator@^0.8.2:
     type-check "~0.3.2"
     word-wrap "~1.2.3"
 
+optionator@^0.9.1:
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.9.1.tgz#4f236a6373dae0566a6d43e1326674f50c291499"
+  integrity sha512-74RlY5FCnhq4jRxVUPKDaRwrVNXMqsGsiW6AJw4XK8hmtm10wC0ypZBLw5IIp85NZMr91+qd1RvvENwg7jjRFw==
+  dependencies:
+    deep-is "^0.1.3"
+    fast-levenshtein "^2.0.6"
+    levn "^0.4.1"
+    prelude-ls "^1.2.1"
+    type-check "^0.4.0"
+    word-wrap "^1.2.3"
+
 os-homedir@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
@@ -6536,6 +6883,11 @@ path-key@^2.0.0, path-key@^2.0.1:
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
+path-key@^3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/path-key/-/path-key-3.1.1.tgz#581f6ade658cbba65a0d3380de7753295054f375"
+  integrity sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==
+
 path-parse@^1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.7.tgz#fbc114b60ca42b30d9daf5858e4bd68bbedb6735"
@@ -6613,6 +6965,11 @@ precond@0.2:
   resolved "https://registry.yarnpkg.com/precond/-/precond-0.2.3.tgz#aa9591bcaa24923f1e0f4849d240f47efc1075ac"
   integrity sha1-qpWRvKokkj8eD0hJ0kD0fvwQdaw=
 
+prelude-ls@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
+  integrity sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -6628,11 +6985,35 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
+prettier-linter-helpers@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/prettier-linter-helpers/-/prettier-linter-helpers-1.0.0.tgz#d23d41fe1375646de2d0104d3454a3008802cf7b"
+  integrity sha512-GbK2cP9nraSSUF9N2XwUwqfzlAFlMNYYl+ShE/V+H8a9uNl/oUqB1w2EL54Jh0OlyRSd8RfWYJ3coVS4TROP2w==
+  dependencies:
+    fast-diff "^1.1.2"
+
+prettier-plugin-solidity@^1.0.0-beta.13:
+  version "1.0.0-beta.13"
+  resolved "https://registry.yarnpkg.com/prettier-plugin-solidity/-/prettier-plugin-solidity-1.0.0-beta.13.tgz#2e31c5a5e2df3239e5e93704f9bcafe09a5f8190"
+  integrity sha512-AWMDRSabpNQMX7EqdDKgx/UVtQY6e3/Iu4gSPYDGvgiWl+OY8kYhAMll2NZHK/X+F0YYpPHYpebkDh7MGxbB1g==
+  dependencies:
+    "@solidity-parser/parser" "^0.13.2"
+    emoji-regex "^9.2.2"
+    escape-string-regexp "^4.0.0"
+    semver "^7.3.5"
+    solidity-comments-extractor "^0.0.7"
+    string-width "^4.2.2"
+
 prettier@^2.1.2:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.3.0.tgz#b6a5bf1284026ae640f17f7ff5658a7567fc0d18"
   integrity sha512-kXtO4s0Lz/DW/IJ9QdWhAf7/NmPWQXkFr/r/WkR3vyI+0v8amTDxiaQSLzs8NBlytfLWX/7uQUMIW677yLKl4w==
 
+prettier@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.3.1.tgz#76903c3f8c4449bc9ac597acefa24dc5ad4cbea6"
+  integrity sha512-p+vNbgpLjif/+D+DwAZAbndtRrR0md0MwfmOVN9N+2RgyACMT+7tfaRnT+WDPkqnuVwleyuBIG2XBxKDme3hPA==
+
 printj@~1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/printj/-/printj-1.1.2.tgz#d90deb2975a8b9f600fb3a1c94e3f4c53c78a222"
@@ -6980,6 +7361,11 @@ regexpp@^2.0.1:
   resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-2.0.1.tgz#8d19d31cf632482b589049f8281f93dbcba4d07f"
   integrity sha512-lv0M6+TkDVniA3aD1Eg0DVpfU/booSu7Eev3TDO/mZKHBfVjgCGTV4t4buppESEYDtkArYFOxTJWv6S5C+iaNw==
 
+regexpp@^3.1.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-3.2.0.tgz#0425a2768d8f23bad70ca4b90461fa2f1213e1b2"
+  integrity sha512-pq2bWo9mVD43nbts2wGv17XLiNLya+GklZ8kaDLV2Z08gDCsGpnKn9BFMepvWuHCbyVvY7J5o5+BVvoQbmlJLg==
+
 regexpu-core@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-2.0.0.tgz#49d038837b8dcf8bfa5b9a42139938e6ea2ae240"
@@ -7054,7 +7440,7 @@ require-from-string@^1.1.0:
   resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-1.2.1.tgz#529c9ccef27380adfec9a2f965b649bbee636418"
   integrity sha1-UpyczvJzgK3+yaL5ZbZJu+5jZBg=
 
-require-from-string@^2.0.0:
+require-from-string@^2.0.0, require-from-string@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.2.tgz#89a7fdd938261267318eafe14f9c32e598c36909"
   integrity sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==
@@ -7086,7 +7472,7 @@ resolve@1.17.0, resolve@~1.17.0:
   dependencies:
     path-parse "^1.0.6"
 
-resolve@^1.10.0, resolve@^1.8.1:
+resolve@^1.10.0, resolve@^1.12.0, resolve@^1.8.1:
   version "1.20.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.20.0.tgz#629a013fb3f70755d6f0b7935cc1c2c5378b1975"
   integrity sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==
@@ -7135,7 +7521,7 @@ rimraf@^2.2.8, rimraf@^2.6.3:
   dependencies:
     glob "^7.1.3"
 
-rimraf@^3.0.0:
+rimraf@^3.0.0, rimraf@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-3.0.2.tgz#f1a5402ba6220ad52cc1282bac1ae3aa49fd061a"
   integrity sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==
@@ -7249,6 +7635,13 @@ semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
+semver@^7.2.1, semver@^7.3.5:
+  version "7.3.5"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
+  integrity sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==
+  dependencies:
+    lru-cache "^6.0.0"
+
 semver@~5.4.1:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
@@ -7346,11 +7739,23 @@ shebang-command@^1.2.0:
   dependencies:
     shebang-regex "^1.0.0"
 
+shebang-command@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-2.0.0.tgz#ccd0af4f8835fbdc265b82461aaf0c36663f34ea"
+  integrity sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==
+  dependencies:
+    shebang-regex "^3.0.0"
+
 shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
   integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
+shebang-regex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-3.0.0.tgz#ae16f1644d873ecad843b0307b143362d4c42172"
+  integrity sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==
+
 side-channel@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/side-channel/-/side-channel-1.0.4.tgz#efce5c8fdc104ee751b25c58d4290011fa5ea2cf"
@@ -7403,6 +7808,15 @@ slice-ansi@^2.1.0:
     astral-regex "^1.0.0"
     is-fullwidth-code-point "^2.0.0"
 
+slice-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-4.0.0.tgz#500e8dd0fd55b05815086255b3195adf2a45fe6b"
+  integrity sha512-qMCMfhY040cVHT43K9BFygqYbUPFZKHOg7K73mtTWJRb8pyP3fzf4Ixd5SzdEJQ6MRUg/WBnOLxghZtKKurENQ==
+  dependencies:
+    ansi-styles "^4.0.0"
+    astral-regex "^2.0.0"
+    is-fullwidth-code-point "^3.0.0"
+
 snapdragon-node@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
@@ -7499,6 +7913,18 @@ solc@^0.6.3:
     semver "^5.5.0"
     tmp "0.0.33"
 
+solhint-plugin-prettier@^0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/solhint-plugin-prettier/-/solhint-plugin-prettier-0.0.5.tgz#e3b22800ba435cd640a9eca805a7f8bc3e3e6a6b"
+  integrity sha512-7jmWcnVshIrO2FFinIvDQmhQpfpS2rRRn3RejiYgnjIE68xO2bvrYvjqVNfrio4xH9ghOqn83tKuTzLjEbmGIA==
+  dependencies:
+    prettier-linter-helpers "^1.0.0"
+
+solidity-comments-extractor@^0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/solidity-comments-extractor/-/solidity-comments-extractor-0.0.7.tgz#99d8f1361438f84019795d928b931f4e5c39ca19"
+  integrity sha512-wciNMLg/Irp8OKGrh3S2tfvZiZ0NEyILfcRCXCD4mp7SgK/i9gzLfhY2hY7VMCQJ3kH9UB9BzNdibIVMchzyYw==
+
 source-map-resolve@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.3.tgz#190866bece7553e1f8f267a2ee82c606b5509a1a"
@@ -7538,7 +7964,7 @@ source-map-url@^0.4.0:
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.1.tgz#0af66605a745a5a2f91cf1bbf8a7afbc283dec56"
   integrity sha512-cPiFOTLUKvJFIg4SKVScy4ilPPW6rFgMgfuZJPNoDuMs3nC1HbMUycBoJw77xFIp6z1UJQJOfx6C9GMH80DiTw==
 
-source-map@^0.5.6, source-map@^0.5.7:
+source-map@^0.5.0, source-map@^0.5.6, source-map@^0.5.7:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
   integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
@@ -7660,7 +8086,7 @@ string-width@^3.0.0, string-width@^3.1.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^5.1.0"
 
-string-width@^4.1.0, string-width@^4.2.0:
+string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.2:
   version "4.2.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.2.tgz#dafd4f9559a7585cfba529c6a0a4f73488ebd4c5"
   integrity sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==
@@ -7765,7 +8191,7 @@ strip-json-comments@2.0.1, strip-json-comments@^2.0.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
-strip-json-comments@3.1.1:
+strip-json-comments@3.1.1, strip-json-comments@^3.1.0, strip-json-comments@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-3.1.1.tgz#31f1281b3832630434831c310c01cccda8cbe006"
   integrity sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==
@@ -7830,6 +8256,18 @@ table@^5.2.3:
     slice-ansi "^2.1.0"
     string-width "^3.0.0"
 
+table@^6.0.9:
+  version "6.7.1"
+  resolved "https://registry.yarnpkg.com/table/-/table-6.7.1.tgz#ee05592b7143831a8c94f3cee6aae4c1ccef33e2"
+  integrity sha512-ZGum47Yi6KOOFDE8m223td53ath2enHcYLgOCjGr5ngu8bdIARQk6mN/wRMv4yMRcHnCSnHbCEha4sobQx5yWg==
+  dependencies:
+    ajv "^8.0.1"
+    lodash.clonedeep "^4.5.0"
+    lodash.truncate "^4.4.2"
+    slice-ansi "^4.0.0"
+    string-width "^4.2.0"
+    strip-ansi "^6.0.0"
+
 tape@^4.6.3:
   version "4.13.3"
   resolved "https://registry.yarnpkg.com/tape/-/tape-4.13.3.tgz#51b3d91c83668c7a45b1a594b607dee0a0b46278"
@@ -7940,6 +8378,11 @@ to-fast-properties@^1.0.3:
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
   integrity sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=
 
+to-fast-properties@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+  integrity sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=
+
 to-object-path@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
@@ -8057,6 +8500,13 @@ tweetnacl@^1.0.0, tweetnacl@^1.0.3:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
   integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
 
+type-check@^0.4.0, type-check@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.4.0.tgz#07b8203bfa7056c0657050e3ccd2c37730bab8f1"
+  integrity sha512-XleUoc9uwGXqjWwXaUTZAmzMcFZ5858QA2vvx1Ur5xIcixXIP+8LnFDgRplU30us6teqdlskFfu+ae4K79Ooew==
+  dependencies:
+    prelude-ls "^1.2.1"
+
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
@@ -8069,6 +8519,11 @@ type-detect@4.0.8, type-detect@^4.0.0, type-detect@^4.0.5:
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
   integrity sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==
 
+type-fest@^0.20.2:
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.20.2.tgz#1bf207f4b28f91583666cb5fbd327887301cd5f4"
+  integrity sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==
+
 type-fest@^0.21.3:
   version "0.21.3"
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.21.3.tgz#d260a24b0198436e133fa26a524a6d65fa3b2e37"
@@ -8306,6 +8761,11 @@ uuid@^3.3.2:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.4.0.tgz#b23e4358afa8a202fe7a100af1f5f883f02007ee"
   integrity sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==
 
+v8-compile-cache@^2.0.3:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/v8-compile-cache/-/v8-compile-cache-2.3.0.tgz#2de19618c66dc247dcfb6f99338035d8245a2cee"
+  integrity sha512-l8lCEmLcLYZh4nbunNZvQCJc5pv7+RCwa8q/LdUx8u7lsWvPDKmpodJAJNwkAhJC//dFY48KuIEmjtd4RViDrA==
+
 validate-npm-package-license@^3.0.1:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz#fc91f6b9c7ba15c857f4cb2c5defeec39d4f410a"
@@ -8944,7 +9404,7 @@ which@1.3.1, which@^1.2.9:
   dependencies:
     isexe "^2.0.0"
 
-which@2.0.2:
+which@2.0.2, which@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/which/-/which-2.0.2.tgz#7c6a8dd0a636a0327e10b59c9286eee93f3f51b1"
   integrity sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==
@@ -8963,7 +9423,7 @@ window-size@^0.2.0:
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.2.0.tgz#b4315bb4214a3d7058ebeee892e13fa24d98b075"
   integrity sha1-tDFbtCFKPXBY6+7okuE/ok2YsHU=
 
-word-wrap@~1.2.3:
+word-wrap@^1.2.3, word-wrap@~1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
@@ -9120,6 +9580,11 @@ yallist@^3.0.0, yallist@^3.0.2, yallist@^3.0.3:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
   integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
+
 yargs-parser@13.1.2, yargs-parser@^13.1.2:
   version "13.1.2"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.2.tgz#130f09702ebaeef2650d54ce6e3e5706f7a4fb38"