Merge pull request #824 from protofire/v2-prototype-solhint

Add and apply solidity linter (V2, updated)

63 files changed, 334 insertions, 10 deletions

diff --git a/packages/contracts/.solhint.json b/packages/contracts/.solhint.json
new file mode 100644
index 000000000..7e3b4dca2
--- /dev/null
+++ b/packages/contracts/.solhint.json
@@ -0,0 +1,17 @@
+{
+    "extends": "default",
+    "rules": {
+        "bracket-align": "warn",
+        "code-complexity": "warn",
+        "const-name-snakecase": "warn",
+        "expression-indent": "warn",
+        "function-max-lines": "warn",
+        "statement-indent": "warn",
+        "indent": ["warn", 4],
+        "quotes": ["error", "double"],
+        "max-line-length": ["warn", 120],
+        "separate-by-one-line-in-contract": "warn",
+        "space-after-comma": "error",
+        "func-order": "warn"
+    }
+}
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 448871c23..a1abd1059 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -31,7 +31,8 @@
         "coverage:report:html": "istanbul report html && open coverage/index.html",
         "profiler:report:html": "istanbul report html && open coverage/index.html",
         "coverage:report:lcov": "istanbul report lcov",
-        "test:circleci": "yarn test"
+        "test:circleci": "yarn test",
+        "lint-contracts": "solhint src/2.0.0/**/*.sol"
     },
     "config": {
         "abis":
@@ -68,6 +69,7 @@
         "npm-run-all": "^4.1.2",
         "shx": "^0.2.2",
         "solc": "^0.4.24",
+        "solhint": "^1.2.1",
         "tslint": "5.8.0",
         "typescript": "2.7.1",
         "yargs": "^10.0.3"
diff --git a/packages/contracts/src/2.0.0/multisig/MultiSigWallet.sol b/packages/contracts/src/2.0.0/multisig/MultiSigWallet.sol
index 79fd92029..1ceecd907 100644
--- a/packages/contracts/src/2.0.0/multisig/MultiSigWallet.sol
+++ b/packages/contracts/src/2.0.0/multisig/MultiSigWallet.sol
@@ -1,5 +1,7 @@
 pragma solidity ^0.4.10;
 
+// solhint-disable
+
 /// @title Multisignature wallet - Allows multiple parties to agree on transactions before execution.
 /// @author Stefan George - <stefan.george@consensys.net>
 contract MultiSigWallet {
diff --git a/packages/contracts/src/2.0.0/multisig/MultiSigWalletWithTimeLock.sol b/packages/contracts/src/2.0.0/multisig/MultiSigWalletWithTimeLock.sol
index 9766c2158..d714b661d 100644
--- a/packages/contracts/src/2.0.0/multisig/MultiSigWalletWithTimeLock.sol
+++ b/packages/contracts/src/2.0.0/multisig/MultiSigWalletWithTimeLock.sol
@@ -20,6 +20,8 @@ pragma solidity ^0.4.10;
 
 import "./MultiSigWallet.sol";
 
+// solhint-disable
+
 /// @title Multisignature wallet with time lock- Allows multiple parties to execute a transaction after a time lock has passed.
 /// @author Amir Bandeali - <amir@0xProject.com>
 contract MultiSigWalletWithTimeLock is MultiSigWallet {
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol
index 3b9584a44..5bc5f3a47 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/MixinAuthorizable.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../../utils/Ownable/Ownable.sol";
 import "./mixins/MAuthorizable.sol";
 
+
 contract MixinAuthorizable is
     Ownable,
     MAuthorizable
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetData.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetData.sol
index 7ebd6acf0..b4ff2d900 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetData.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetData.sol
@@ -18,15 +18,18 @@
 
 pragma solidity ^0.4.23;
 
+
 // @dev Interface of the asset proxy's assetData.
 // The asset proxies take an ABI encoded `bytes assetData` as argument.
 // This argument is ABI encoded as one of the methods of this interface.
 interface IAssetData {
-    
+
+    // solhint-disable-next-line func-name-mixedcase
     function ERC20Token(address tokenContract)
         external
         pure;
     
+    // solhint-disable-next-line func-name-mixedcase
     function ERC721Token(
         address tokenContract,
         uint256 tokenId,
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetProxy.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetProxy.sol
index eacd5a412..0ef1ed2e0 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetProxy.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAssetProxy.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "./IAuthorizable.sol";
 
+
 contract IAssetProxy is
     IAuthorizable
 {
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAuthorizable.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAuthorizable.sol
index cedd1744c..286db74aa 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAuthorizable.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/interfaces/IAuthorizable.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "../../../utils/Ownable/IOwnable.sol";
 
+
 contract IAuthorizable is
     IOwnable
 {
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/libs/LibAssetProxyErrors.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/libs/LibAssetProxyErrors.sol
index 338cb12e2..4b460ea9a 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxy/libs/LibAssetProxyErrors.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/libs/LibAssetProxyErrors.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 /// @dev This contract documents the revert reasons used in the AssetProxy contracts.
 /// This contract is intended to serve as a reference, but is not actually used for efficiency reasons.
 contract LibAssetProxyErrors {
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxy/mixins/MAuthorizable.sol b/packages/contracts/src/2.0.0/protocol/AssetProxy/mixins/MAuthorizable.sol
index 6f35bd7ec..66c259a23 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxy/mixins/MAuthorizable.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxy/mixins/MAuthorizable.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "../interfaces/IAuthorizable.sol";
 
+
 contract MAuthorizable is
     IAuthorizable
 {
diff --git a/packages/contracts/src/2.0.0/protocol/AssetProxyOwner/AssetProxyOwner.sol b/packages/contracts/src/2.0.0/protocol/AssetProxyOwner/AssetProxyOwner.sol
index eb58b3374..232155a6b 100644
--- a/packages/contracts/src/2.0.0/protocol/AssetProxyOwner/AssetProxyOwner.sol
+++ b/packages/contracts/src/2.0.0/protocol/AssetProxyOwner/AssetProxyOwner.sol
@@ -21,6 +21,7 @@ pragma solidity ^0.4.10;
 import "../../multisig/MultiSigWalletWithTimeLock.sol";
 import "../../utils/LibBytes/LibBytes.sol";
 
+
 contract AssetProxyOwner is
     MultiSigWalletWithTimeLock
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/Exchange.sol b/packages/contracts/src/2.0.0/protocol/Exchange/Exchange.sol
index d36e9633e..effff82e0 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/Exchange.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/Exchange.sol
@@ -27,6 +27,7 @@ import "./MixinAssetProxyDispatcher.sol";
 import "./MixinTransactions.sol";
 import "./MixinMatchOrders.sol";
 
+
 contract Exchange is
     MixinExchangeCore,
     MixinMatchOrders,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol
index 9e9d88ce7..dcfe9e1de 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinAssetProxyDispatcher.sol
@@ -23,6 +23,7 @@ import "../../utils/LibBytes/LibBytes.sol";
 import "./mixins/MAssetProxyDispatcher.sol";
 import "../AssetProxy/interfaces/IAssetProxy.sol";
 
+
 contract MixinAssetProxyDispatcher is
     Ownable,
     MAssetProxyDispatcher
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol
index c0ed023ac..5ab7aa63f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinExchangeCore.sol
@@ -28,6 +28,7 @@ import "./mixins/MSignatureValidator.sol";
 import "./mixins/MTransactions.sol";
 import "./mixins/MAssetProxyDispatcher.sol";
 
+
 contract MixinExchangeCore is
     LibConstants,
     LibMath,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol
index 1a43eec79..bfe838837 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinMatchOrders.sol
@@ -23,6 +23,7 @@ import "./mixins/MMatchOrders.sol";
 import "./mixins/MTransactions.sol";
 import "./mixins/MAssetProxyDispatcher.sol";
 
+
 contract MixinMatchOrders is
     LibConstants,
     LibMath,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
index 29172057a..78f13286f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
@@ -24,6 +24,7 @@ import "./mixins/MTransactions.sol";
 import "./interfaces/IWallet.sol";
 import "./interfaces/IValidator.sol";
 
+
 contract MixinSignatureValidator is
     MSignatureValidator,
     MTransactions
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
index 31f7f2847..3b18ac733 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
@@ -22,6 +22,7 @@ import "./mixins/MSignatureValidator.sol";
 import "./mixins/MTransactions.sol";
 import "./libs/LibEIP712.sol";
 
+
 contract MixinTransactions is
     LibEIP712,
     MSignatureValidator,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
index 00668ca43..678d0252a 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinWrapperFunctions.sol
@@ -24,6 +24,7 @@ import "./libs/LibOrder.sol";
 import "./libs/LibFillResults.sol";
 import "./mixins/MExchangeCore.sol";
 
+
 contract MixinWrapperFunctions is
     LibMath,
     LibFillResults,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol
index 66f3b5796..b73881c07 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IAssetProxyDispatcher.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 contract IAssetProxyDispatcher {
 
     /// @dev Registers an asset proxy to its asset proxy id.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchange.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchange.sol
index 9f21c18d7..05e5dedf4 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchange.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchange.sol
@@ -26,6 +26,7 @@ import "./ITransactions.sol";
 import "./IAssetProxyDispatcher.sol";
 import "./IWrapperFunctions.sol";
 
+
 contract IExchange is
     IExchangeCore,
     IMatchOrders,
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchangeCore.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchangeCore.sol
index 98222f33f..2b573eb1a 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchangeCore.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IExchangeCore.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../libs/LibOrder.sol";
 import "../libs/LibFillResults.sol";
 
+
 contract IExchangeCore {
 
     /// @dev Cancels all orders created by makerAddress with a salt less than or equal to the targetOrderEpoch
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IMatchOrders.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IMatchOrders.sol
index df009d063..d44116474 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IMatchOrders.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IMatchOrders.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 import "../libs/LibOrder.sol";
 import "../libs/LibFillResults.sol";
 
+
 contract IMatchOrders {
 
     /// @dev Match two complementary orders that have a profitable spread.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol
index 511463309..c5a4a57e1 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ISignatureValidator.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 contract ISignatureValidator {
 
     /// @dev Approves a hash on-chain using any valid signature type.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ITransactions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ITransactions.sol
index a7cab8f55..aaaee389f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ITransactions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/ITransactions.sol
@@ -17,6 +17,7 @@
 */
 pragma solidity ^0.4.24;
 
+
 contract ITransactions {
 
     /// @dev Executes an exchange method call in the context of signer.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IValidator.sol
index 0b1796a66..2c0a5dbe2 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IValidator.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.23;
 
+
 contract IValidator {
 
     /// @dev Verifies that a signature is valid.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWallet.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWallet.sol
index c86a2c057..c2db4a5b1 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWallet.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWallet.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 contract IWallet {
 
     /// @dev Verifies that a signature is valid.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWrapperFunctions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWrapperFunctions.sol
index 84bb683bc..04257b883 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWrapperFunctions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/interfaces/IWrapperFunctions.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../libs/LibOrder.sol";
 import "../libs/LibFillResults.sol";
 
+
 contract IWrapperFunctions {
     /// @dev Fills the input order. Reverts if exact takerAssetFillAmount not filled.
     /// @param order LibOrder.Order struct containing order specifications.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibConstants.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibConstants.sol
index 488ca956c..76200ec44 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibConstants.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibConstants.sol
@@ -18,11 +18,13 @@
 
 pragma solidity ^0.4.24;
 
+
 contract LibConstants {
    
     // Asset data for ZRX token. Used for fee transfers.
     // @TODO: Hardcode constant when we deploy. Currently 
     //        not constant to make testing easier.
+    // solhint-disable-next-line var-name-mixedcase
     bytes public ZRX_ASSET_DATA;
 
     // @TODO: Remove when we deploy.
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol
index b983347a4..2bd7b60d4 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 contract LibEIP712 {
     // EIP191 header for EIP712 prefix
     string constant EIP191_HEADER = "\x19\x01";
@@ -38,6 +39,7 @@ contract LibEIP712 {
     ));
 
     // Hash of the EIP712 Domain Separator data
+    // solhint-disable-next-line var-name-mixedcase
     bytes32 public EIP712_DOMAIN_HASH;
 
     constructor ()
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibExchangeErrors.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibExchangeErrors.sol
index 01aa78a1d..99f683e1a 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibExchangeErrors.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibExchangeErrors.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 /// @dev This contract documents the revert reasons used in the Exchange contract.
 /// This contract is intended to serve as a reference, but is not actually used for efficiency reasons.
 contract LibExchangeErrors {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibFillResults.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibFillResults.sol
index 63f1b8c87..35fa9ac0f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibFillResults.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibFillResults.sol
@@ -20,6 +20,7 @@ pragma solidity ^0.4.24;
 
 import "../../../utils/SafeMath/SafeMath.sol";
 
+
 contract LibFillResults is
     SafeMath
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol
index bfe2fd33f..9da784854 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibMath.sol
@@ -20,6 +20,7 @@ pragma solidity ^0.4.24;
 
 import "../../../utils/SafeMath/SafeMath.sol";
 
+
 contract LibMath is
     SafeMath
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibOrder.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibOrder.sol
index 954f94f76..dda581d9f 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibOrder.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibOrder.sol
@@ -20,6 +20,7 @@ pragma solidity ^0.4.24;
 
 import "./LibEIP712.sol";
 
+
 contract LibOrder is
     LibEIP712
 {
@@ -115,17 +116,20 @@ contract LibOrder is
         //   ));
         assembly {
             // Backup
+            // solhint-disable-next-line space-after-comma
             let temp1 := mload(sub(order,  32))
             let temp2 := mload(add(order, 320))
             let temp3 := mload(add(order, 352))
             
             // Hash in place
+            // solhint-disable-next-line space-after-comma
             mstore(sub(order,  32), schemaHash)
             mstore(add(order, 320), makerAssetDataHash)
             mstore(add(order, 352), takerAssetDataHash)
             result := keccak256(sub(order, 32), 416)
             
             // Restore
+            // solhint-disable-next-line space-after-comma
             mstore(sub(order,  32), temp1)
             mstore(add(order, 320), temp2)
             mstore(add(order, 352), temp3)
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MAssetProxyDispatcher.sol
index 5bf59c6ce..367b37e80 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MAssetProxyDispatcher.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MAssetProxyDispatcher.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "../interfaces/IAssetProxyDispatcher.sol";
 
+
 contract MAssetProxyDispatcher is
     IAssetProxyDispatcher
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol
index 6e406e1c4..e28d9d25b 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MExchangeCore.sol
@@ -23,6 +23,7 @@ import "../libs/LibOrder.sol";
 import "../libs/LibFillResults.sol";
 import "../interfaces/IExchangeCore.sol";
 
+
 contract MExchangeCore is
     IExchangeCore
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MMatchOrders.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MMatchOrders.sol
index abe7c3596..289514b24 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MMatchOrders.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MMatchOrders.sol
@@ -22,6 +22,7 @@ import "../libs/LibOrder.sol";
 import "../libs/LibFillResults.sol";
 import "../interfaces/IMatchOrders.sol";
 
+
 contract MMatchOrders is
     IMatchOrders
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol
index 6cc1d7a10..83650b4aa 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MSignatureValidator.sol
@@ -20,6 +20,7 @@ pragma solidity ^0.4.24;
 
 import "../interfaces/ISignatureValidator.sol";
 
+
 contract MSignatureValidator is
     ISignatureValidator
 {
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MTransactions.sol b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MTransactions.sol
index e2f89de01..a9fa6d4e2 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MTransactions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/mixins/MTransactions.sol
@@ -19,6 +19,7 @@ pragma solidity ^0.4.24;
 
 import "../interfaces/ITransactions.sol";
 
+
 contract MTransactions is
     ITransactions
 {
diff --git a/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyERC20Token.sol b/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyERC20Token.sol
index b2fe2df06..7a2702449 100644
--- a/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyERC20Token.sol
+++ b/packages/contracts/src/2.0.0/test/DummyERC20Token/DummyERC20Token.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../Mintable/Mintable.sol";
 import "../../utils/Ownable/Ownable.sol";
 
+
 contract DummyERC20Token is Mintable, Ownable {
     string public name;
     string public symbol;
diff --git a/packages/contracts/src/2.0.0/test/DummyERC721Receiver/DummyERC721Receiver.sol b/packages/contracts/src/2.0.0/test/DummyERC721Receiver/DummyERC721Receiver.sol
index c584d0b54..b027ac960 100644
--- a/packages/contracts/src/2.0.0/test/DummyERC721Receiver/DummyERC721Receiver.sol
+++ b/packages/contracts/src/2.0.0/test/DummyERC721Receiver/DummyERC721Receiver.sol
@@ -27,6 +27,7 @@ pragma solidity ^0.4.24;
 
 import "../../tokens/ERC721Token/IERC721Receiver.sol";
 
+
 contract DummyERC721Receiver is
     IERC721Receiver
 {
diff --git a/packages/contracts/src/2.0.0/test/DummyERC721Token/DummyERC721Token.sol b/packages/contracts/src/2.0.0/test/DummyERC721Token/DummyERC721Token.sol
index 78ea96447..de76f10c5 100644
--- a/packages/contracts/src/2.0.0/test/DummyERC721Token/DummyERC721Token.sol
+++ b/packages/contracts/src/2.0.0/test/DummyERC721Token/DummyERC721Token.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../../tokens/ERC721Token/ERC721Token.sol";
 import "../../utils/Ownable/Ownable.sol";
 
+
 contract DummyERC721Token is
     Ownable,
     ERC721Token
diff --git a/packages/contracts/src/2.0.0/test/ExchangeWrapper/ExchangeWrapper.sol b/packages/contracts/src/2.0.0/test/ExchangeWrapper/ExchangeWrapper.sol
index 5baaf6e5a..f20e2a944 100644
--- a/packages/contracts/src/2.0.0/test/ExchangeWrapper/ExchangeWrapper.sol
+++ b/packages/contracts/src/2.0.0/test/ExchangeWrapper/ExchangeWrapper.sol
@@ -22,9 +22,11 @@ pragma experimental ABIEncoderV2;
 import "../../protocol/Exchange/interfaces/IExchange.sol";
 import "../../protocol/Exchange/libs/LibOrder.sol";
 
+
 contract ExchangeWrapper {
 
     // Exchange contract.
+    // solhint-disable-next-line var-name-mixedcase
     IExchange EXCHANGE;
 
     constructor (address _exchange)
diff --git a/packages/contracts/src/2.0.0/test/Mintable/Mintable.sol b/packages/contracts/src/2.0.0/test/Mintable/Mintable.sol
index a91bfee9e..bccb74ce8 100644
--- a/packages/contracts/src/2.0.0/test/Mintable/Mintable.sol
+++ b/packages/contracts/src/2.0.0/test/Mintable/Mintable.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../../tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol";
 import "../../utils/SafeMath/SafeMath.sol";
 
+
 /*
  * Mintable
  * Base contract that creates a mintable UnlimitedAllowanceToken
diff --git a/packages/contracts/src/2.0.0/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol b/packages/contracts/src/2.0.0/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol
index 2ae69e0ef..be7fea7d3 100644
--- a/packages/contracts/src/2.0.0/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol
+++ b/packages/contracts/src/2.0.0/test/TestAssetProxyDispatcher/TestAssetProxyDispatcher.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "../../protocol/Exchange/MixinAssetProxyDispatcher.sol";
 
+
 contract TestAssetProxyDispatcher is MixinAssetProxyDispatcher {
     function publicDispatchTransferFrom(
         bytes memory assetData,
diff --git a/packages/contracts/src/2.0.0/test/TestAssetProxyOwner/TestAssetProxyOwner.sol b/packages/contracts/src/2.0.0/test/TestAssetProxyOwner/TestAssetProxyOwner.sol
index 2abcd17a0..ddcc62f35 100644
--- a/packages/contracts/src/2.0.0/test/TestAssetProxyOwner/TestAssetProxyOwner.sol
+++ b/packages/contracts/src/2.0.0/test/TestAssetProxyOwner/TestAssetProxyOwner.sol
@@ -20,6 +20,7 @@ pragma solidity ^0.4.24;
 
 import "../../protocol/AssetProxyOwner/AssetProxyOwner.sol";
 
+
 contract TestAssetProxyOwner is
     AssetProxyOwner
 {
diff --git a/packages/contracts/src/2.0.0/test/TestLibBytes/TestLibBytes.sol b/packages/contracts/src/2.0.0/test/TestLibBytes/TestLibBytes.sol
index f45faaf36..f52f635e1 100644
--- a/packages/contracts/src/2.0.0/test/TestLibBytes/TestLibBytes.sol
+++ b/packages/contracts/src/2.0.0/test/TestLibBytes/TestLibBytes.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "../../utils/LibBytes/LibBytes.sol";
 
+
 contract TestLibBytes {
     
     using LibBytes for bytes;
diff --git a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
index 010080703..df8eb55ce 100644
--- a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
+++ b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
@@ -23,6 +23,7 @@ import "../../protocol/Exchange/libs/LibMath.sol";
 import "../../protocol/Exchange/libs/LibOrder.sol";
 import "../../protocol/Exchange/libs/LibFillResults.sol";
 
+
 contract TestLibs is 
     LibMath,
     LibOrder,
diff --git a/packages/contracts/src/2.0.0/test/TestSignatureValidator/TestSignatureValidator.sol b/packages/contracts/src/2.0.0/test/TestSignatureValidator/TestSignatureValidator.sol
index 0f84678cf..591ae3378 100644
--- a/packages/contracts/src/2.0.0/test/TestSignatureValidator/TestSignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/test/TestSignatureValidator/TestSignatureValidator.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
 import "../../protocol/Exchange/MixinSignatureValidator.sol";
 import "../../protocol/Exchange/MixinTransactions.sol";
 
+
 contract TestSignatureValidator is
     MixinSignatureValidator,
     MixinTransactions
diff --git a/packages/contracts/src/2.0.0/test/TestValidator/TestValidator.sol b/packages/contracts/src/2.0.0/test/TestValidator/TestValidator.sol
index f9271bf7a..5076dedc9 100644
--- a/packages/contracts/src/2.0.0/test/TestValidator/TestValidator.sol
+++ b/packages/contracts/src/2.0.0/test/TestValidator/TestValidator.sol
@@ -20,11 +20,13 @@ pragma solidity ^0.4.24;
 
 import "../../protocol/Exchange/interfaces/IValidator.sol";
 
+
 contract TestValidator is 
     IValidator
 {
 
     // The single valid signer for this wallet.
+    // solhint-disable-next-line var-name-mixedcase
     address VALID_SIGNER;
 
     /// @dev constructs a new `TestValidator` with a single valid signer.
diff --git a/packages/contracts/src/2.0.0/test/TestWallet/TestWallet.sol b/packages/contracts/src/2.0.0/test/TestWallet/TestWallet.sol
index 17dee9e9c..07dfac588 100644
--- a/packages/contracts/src/2.0.0/test/TestWallet/TestWallet.sol
+++ b/packages/contracts/src/2.0.0/test/TestWallet/TestWallet.sol
@@ -21,6 +21,7 @@ pragma solidity ^0.4.24;
 import "../../protocol/Exchange/interfaces/IWallet.sol";
 import "../../utils/LibBytes/LibBytes.sol";
 
+
 contract TestWallet is 
     IWallet
 {
@@ -29,6 +30,7 @@ contract TestWallet is
     string constant LENGTH_65_REQUIRED = "LENGTH_65_REQUIRED";
 
     // The owner of this wallet.
+    // solhint-disable-next-line var-name-mixedcase
     address WALLET_OWNER;
 
     /// @dev constructs a new `TestWallet` with a single owner.
diff --git a/packages/contracts/src/2.0.0/test/Whitelist/Whitelist.sol b/packages/contracts/src/2.0.0/test/Whitelist/Whitelist.sol
index 8b52858b1..07bd7d531 100644
--- a/packages/contracts/src/2.0.0/test/Whitelist/Whitelist.sol
+++ b/packages/contracts/src/2.0.0/test/Whitelist/Whitelist.sol
@@ -23,6 +23,7 @@ import "../../protocol/Exchange/interfaces/IExchange.sol";
 import "../../protocol/Exchange/libs/LibOrder.sol";
 import "../../utils/Ownable/Ownable.sol";
 
+
 contract Whitelist is
     Ownable
 {
@@ -35,15 +36,19 @@ contract Whitelist is
     mapping (address => bool) public isWhitelisted;
 
     // Exchange contract.
+    // solhint-disable-next-line var-name-mixedcase
     IExchange EXCHANGE;
 
     byte constant VALIDATOR_SIGNATURE_BYTE = "\x06";
+    // solhint-disable-next-line var-name-mixedcase
     bytes TX_ORIGIN_SIGNATURE;
 
     constructor (address _exchange)
         public
     {
+        // solhint-disable-next-line var-name-mixedcase
         EXCHANGE = IExchange(_exchange);
+        // solhint-disable-next-line var-name-mixedcase
         TX_ORIGIN_SIGNATURE = abi.encodePacked(address(this), VALIDATOR_SIGNATURE_BYTE);
     }
 
diff --git a/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol b/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol
index b6961a6ec..59dc7d7bf 100644
--- a/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol
+++ b/packages/contracts/src/2.0.0/tokens/ERC20Token/ERC20Token.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "./IERC20Token.sol";
 
+
 contract ERC20Token is IERC20Token {
 
     string constant INSUFFICIENT_BALANCE = "ERC20_INSUFFICIENT_BALANCE";
diff --git a/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol b/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol
index eb879b6a8..de4ed2af9 100644
--- a/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol
+++ b/packages/contracts/src/2.0.0/tokens/ERC20Token/IERC20Token.sol
@@ -19,6 +19,7 @@
 pragma solidity ^0.4.24;
 pragma experimental ABIEncoderV2;
 
+
 contract IERC20Token {
 
     /// @notice send `value` token to `to` from `msg.sender`
diff --git a/packages/contracts/src/2.0.0/tokens/ERC721Token/ERC721Token.sol b/packages/contracts/src/2.0.0/tokens/ERC721Token/ERC721Token.sol
index 41ba149e3..defb506a8 100644
--- a/packages/contracts/src/2.0.0/tokens/ERC721Token/ERC721Token.sol
+++ b/packages/contracts/src/2.0.0/tokens/ERC721Token/ERC721Token.sol
@@ -29,6 +29,7 @@ import "./IERC721Token.sol";
 import "./IERC721Receiver.sol";
 import "../../utils/SafeMath/SafeMath.sol";
 
+
 /**
  * @title ERC721 Non-Fungible Token Standard basic implementation
  * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
diff --git a/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Receiver.sol b/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Receiver.sol
index b0fff3c90..f72c75638 100644
--- a/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Receiver.sol
+++ b/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Receiver.sol
@@ -25,6 +25,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 pragma solidity ^0.4.24;
 
+
 /**
  * @title ERC721 token receiver interface
  * @dev Interface for any contract that wants to support safeTransfers
diff --git a/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Token.sol b/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Token.sol
index 345712d67..0d64ee861 100644
--- a/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Token.sol
+++ b/packages/contracts/src/2.0.0/tokens/ERC721Token/IERC721Token.sol
@@ -25,6 +25,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 pragma solidity ^0.4.24;
 
+
 /**
  * @title ERC721 Non-Fungible Token Standard basic interface
  * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
diff --git a/packages/contracts/src/2.0.0/tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol b/packages/contracts/src/2.0.0/tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol
index f62602ab3..845324e4e 100644
--- a/packages/contracts/src/2.0.0/tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol
+++ b/packages/contracts/src/2.0.0/tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol
@@ -21,6 +21,7 @@ pragma experimental ABIEncoderV2;
 
 import "../ERC20Token/ERC20Token.sol";
 
+
 contract UnlimitedAllowanceToken is ERC20Token {
 
     uint256 constant MAX_UINT = 2**256 - 1;
diff --git a/packages/contracts/src/2.0.0/tokens/WETH9/WETH9.sol b/packages/contracts/src/2.0.0/tokens/WETH9/WETH9.sol
index 733ca414b..378a507b9 100644
--- a/packages/contracts/src/2.0.0/tokens/WETH9/WETH9.sol
+++ b/packages/contracts/src/2.0.0/tokens/WETH9/WETH9.sol
@@ -15,6 +15,7 @@
 
 pragma solidity ^0.4.18;
 
+
 contract WETH9 {
     string public name     = "Wrapped Ether";
     string public symbol   = "WETH";
diff --git a/packages/contracts/src/2.0.0/tokens/ZRXToken/ZRXToken.sol b/packages/contracts/src/2.0.0/tokens/ZRXToken/ZRXToken.sol
index 2e5b61e0b..ed0670072 100644
--- a/packages/contracts/src/2.0.0/tokens/ZRXToken/ZRXToken.sol
+++ b/packages/contracts/src/2.0.0/tokens/ZRXToken/ZRXToken.sol
@@ -20,6 +20,8 @@ pragma solidity ^0.4.11;
 
 import { UnlimitedAllowanceToken_v1 as UnlimitedAllowanceToken } from "../../../1.0.0/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol";
 
+
+
 contract ZRXToken is UnlimitedAllowanceToken {
 
     uint8 constant public decimals = 18;
diff --git a/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol b/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol
index 78b1ddf7c..c2fff5efb 100644
--- a/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol
+++ b/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol
@@ -18,6 +18,7 @@
 
 pragma solidity ^0.4.24;
 
+
 library LibBytes {
 
     using LibBytes for bytes;
diff --git a/packages/contracts/src/2.0.0/utils/Ownable/Ownable.sol b/packages/contracts/src/2.0.0/utils/Ownable/Ownable.sol
index 6f5761cc7..489793a95 100644
--- a/packages/contracts/src/2.0.0/utils/Ownable/Ownable.sol
+++ b/packages/contracts/src/2.0.0/utils/Ownable/Ownable.sol
@@ -10,6 +10,7 @@ pragma experimental ABIEncoderV2;
 
 import "./IOwnable.sol";
 
+
 contract Ownable is IOwnable {
     address public owner;
 
diff --git a/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol b/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol
index e137f6ca5..ec0a3fe76 100644
--- a/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol
+++ b/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol
@@ -1,6 +1,7 @@
 pragma solidity ^0.4.24;
 pragma experimental ABIEncoderV2;
 
+
 contract SafeMath {
     function safeMul(uint a, uint b)
         internal
diff --git a/yarn.lock b/yarn.lock
index 079223ca4..aebbdacaf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -557,6 +557,16 @@ acorn-dynamic-import@^2.0.0:
   dependencies:
     acorn "^4.0.3"
 
+acorn-jsx@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  dependencies:
+    acorn "^3.0.4"
+
+acorn@^3.0.4:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+
 acorn@^4.0.3:
   version "4.0.13"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
@@ -565,6 +575,10 @@ acorn@^5.0.0:
   version "5.5.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
 
+acorn@^5.5.0:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
+
 add-stream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/add-stream/-/add-stream-1.0.0.tgz#6a7990437ca736d5e1288db92bd3266d5f5cb2aa"
@@ -577,6 +591,10 @@ aes-js@^0.2.3:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/aes-js/-/aes-js-0.2.4.tgz#94b881ab717286d015fa219e08fb66709dda5a3d"
 
+ajv-keywords@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
+
 ajv-keywords@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
@@ -588,7 +606,7 @@ ajv@^4.9.1:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^5.1.0:
+ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   dependencies:
@@ -676,6 +694,10 @@ ansi-wrap@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/ansi-wrap/-/ansi-wrap-0.1.0.tgz#a82250ddb0015e9a27ca82e82ea603bbfa45efaf"
 
+antlr4@4.7.0:
+  version "4.7.0"
+  resolved "https://registry.yarnpkg.com/antlr4/-/antlr4-4.7.0.tgz#297f956ddc06f83397fc0990ecf2e0cf20bfbbee"
+
 any-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.2.0.tgz#c67870058003579009083f54ac0abafb5c33d242"
@@ -2181,6 +2203,16 @@ call-me-maybe@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/call-me-maybe/-/call-me-maybe-1.0.1.tgz#26d208ea89e37b5cbde60250a15f031c16a4d66b"
 
+caller-path@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
+  dependencies:
+    callsites "^0.2.0"
+
+callsites@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
+
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -2374,6 +2406,10 @@ circular-json@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.1.tgz#be8b36aefccde8b3ca7aa2d6afc07a37242c0d2d"
 
+circular-json@^0.3.1:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
+
 clap@^1.0.9:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/clap/-/clap-1.2.3.tgz#4f36745b32008492557f46412d66d50cb99bce51"
@@ -2686,7 +2722,7 @@ concat-stream@^1.4.10, concat-stream@^1.5.0:
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
-concat-stream@^1.5.1:
+concat-stream@^1.5.1, concat-stream@^1.6.0:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   dependencies:
@@ -3480,6 +3516,18 @@ defined@^1.0.0, defined@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
 
+del@^2.0.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
+  dependencies:
+    globby "^5.0.0"
+    is-path-cwd "^1.0.0"
+    is-path-in-cwd "^1.0.0"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    rimraf "^2.2.8"
+
 del@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
@@ -3623,6 +3671,12 @@ doctrine@^0.7.2:
     esutils "^1.1.6"
     isarray "0.0.1"
 
+doctrine@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
+  dependencies:
+    esutils "^2.0.2"
+
 dom-helpers@^3.2.0:
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.3.1.tgz#fc1a4e15ffdf60ddde03a480a9c0fece821dd4a6"
@@ -3971,6 +4025,67 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-scope@^3.7.1:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
+eslint-visitor-keys@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
+
+eslint@^4.19.1:
+  version "4.19.1"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.19.1.tgz#32d1d653e1d90408854bfb296f076ec7e186a300"
+  dependencies:
+    ajv "^5.3.0"
+    babel-code-frame "^6.22.0"
+    chalk "^2.1.0"
+    concat-stream "^1.6.0"
+    cross-spawn "^5.1.0"
+    debug "^3.1.0"
+    doctrine "^2.1.0"
+    eslint-scope "^3.7.1"
+    eslint-visitor-keys "^1.0.0"
+    espree "^3.5.4"
+    esquery "^1.0.0"
+    esutils "^2.0.2"
+    file-entry-cache "^2.0.0"
+    functional-red-black-tree "^1.0.1"
+    glob "^7.1.2"
+    globals "^11.0.1"
+    ignore "^3.3.3"
+    imurmurhash "^0.1.4"
+    inquirer "^3.0.6"
+    is-resolvable "^1.0.0"
+    js-yaml "^3.9.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
+    levn "^0.3.0"
+    lodash "^4.17.4"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    optionator "^0.8.2"
+    path-is-inside "^1.0.2"
+    pluralize "^7.0.0"
+    progress "^2.0.0"
+    regexpp "^1.0.1"
+    require-uncached "^1.0.3"
+    semver "^5.3.0"
+    strip-ansi "^4.0.0"
+    strip-json-comments "~2.0.1"
+    table "4.0.2"
+    text-table "~0.2.0"
+
+espree@^3.5.4:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
+  dependencies:
+    acorn "^5.5.0"
+    acorn-jsx "^3.0.0"
+
 esprima@2.7.x, esprima@^2.6.0, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
@@ -3979,6 +4094,12 @@ esprima@^4.0.0, esprima@~4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
+esquery@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
+  dependencies:
+    estraverse "^4.0.0"
+
 esrecurse@^4.1.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
@@ -3989,7 +4110,7 @@ estraverse@^1.9.1:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
 
-estraverse@^4.1.0, estraverse@^4.1.1:
+estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
 
@@ -4630,6 +4751,13 @@ figures@^2.0.0:
   dependencies:
     escape-string-regexp "^1.0.5"
 
+file-entry-cache@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-2.0.0.tgz#c392990c3e684783d838b8c84a45d8a048458361"
+  dependencies:
+    flat-cache "^1.2.1"
+    object-assign "^4.0.1"
+
 file-type@3.9.0, file-type@^3.6.0, file-type@^3.8.0:
   version "3.9.0"
   resolved "https://registry.yarnpkg.com/file-type/-/file-type-3.9.0.tgz#257a078384d1db8087bc449d107d52a52672b9e9"
@@ -4760,6 +4888,15 @@ flagged-respawn@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/flagged-respawn/-/flagged-respawn-1.0.0.tgz#4e79ae9b2eb38bf86b3bb56bf3e0a56aa5fcabd7"
 
+flat-cache@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
+  dependencies:
+    circular-json "^0.3.1"
+    del "^2.0.2"
+    graceful-fs "^4.1.2"
+    write "^0.2.1"
+
 flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
@@ -5266,10 +5403,25 @@ global@~4.3.0:
     min-document "^2.19.0"
     process "~0.5.1"
 
+globals@^11.0.1:
+  version "11.7.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.7.0.tgz#a583faa43055b1aca771914bf68258e2fc125673"
+
 globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
 
+globby@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
+  dependencies:
+    array-union "^1.0.1"
+    arrify "^1.0.0"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
 globby@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
@@ -5851,6 +6003,10 @@ ignore-by-default@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ignore-by-default/-/ignore-by-default-1.0.1.tgz#48ca6d72f6c6a3af00a9ad4ae6876be3889e2b09"
 
+ignore@^3.3.3, ignore@^3.3.7:
+  version "3.3.10"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
+
 ignore@^3.3.5:
   version "3.3.7"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
@@ -5950,7 +6106,7 @@ inquirer@^0.8.2:
     rx "^2.4.3"
     through "^2.3.6"
 
-inquirer@^3.2.2:
+inquirer@^3.0.6, inquirer@^3.2.2:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
   dependencies:
@@ -6328,6 +6484,10 @@ is-relative@^1.0.0:
   dependencies:
     is-unc-path "^1.0.0"
 
+is-resolvable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
+
 is-retry-allowed@^1.0.0, is-retry-allowed@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
@@ -6555,6 +6715,13 @@ js-yaml@3.x, js-yaml@^3.4.2, js-yaml@^3.6.1, js-yaml@^3.7.0:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@^3.9.1:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
 js-yaml@~3.7.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.7.0.tgz#5c967ddd837a9bfdca5f2de84253abe8a1c03b80"
@@ -6654,6 +6821,10 @@ json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
 
+json-stable-stringify-without-jsonify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+
 json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
@@ -6950,7 +7121,7 @@ levelup@~0.19.0:
     semver "~5.1.0"
     xtend "~3.0.0"
 
-levn@~0.3.0:
+levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
   dependencies:
@@ -7890,6 +8061,10 @@ natives@^1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/natives/-/natives-1.1.3.tgz#44a579be64507ea2d6ed1ca04a9415915cf75558"
 
+natural-compare@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+
 ncp@1.0.x:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ncp/-/ncp-1.0.1.tgz#d15367e5cb87432ba117d2bf80fdf45aecfb4246"
@@ -8374,7 +8549,7 @@ optimist@^0.6.1:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
 
-optionator@^0.8.1:
+optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
   dependencies:
@@ -8640,7 +8815,7 @@ path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
-path-is-inside@^1.0.1:
+path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
@@ -8768,6 +8943,10 @@ plur@^2.1.2:
   dependencies:
     irregular-plurals "^1.0.0"
 
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
+
 polished@^1.9.2:
   version "1.9.2"
   resolved "https://registry.npmjs.org/polished/-/polished-1.9.2.tgz#d705cac66f3a3ed1bd38aad863e2c1e269baf6b6"
@@ -9954,6 +10133,10 @@ regex-not@^1.0.0, regex-not@^1.0.2:
     extend-shallow "^3.0.2"
     safe-regex "^1.1.0"
 
+regexpp@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-1.1.0.tgz#0e3516dd0b7904f413d2d4193dce4618c3a689ab"
+
 regexpu-core@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-1.0.0.tgz#86a763f58ee4d7c2f6b102e4764050de7ed90c6b"
@@ -10132,6 +10315,13 @@ require-package-name@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/require-package-name/-/require-package-name-2.0.1.tgz#c11e97276b65b8e2923f75dabf5fb2ef0c3841b9"
 
+require-uncached@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
+  dependencies:
+    caller-path "^0.1.0"
+    resolve-from "^1.0.0"
+
 requires-port@1.0.x, requires-port@1.x.x, requires-port@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
@@ -10153,6 +10343,10 @@ resolve-from@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
 
+resolve-from@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
+
 resolve-from@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-2.0.0.tgz#9480ab20e94ffa1d9e80a804c7ea147611966b57"
@@ -10683,6 +10877,12 @@ slice-ansi@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
 
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+
 slide@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/slide/-/slide-1.1.6.tgz#56eb027d65b4d2dce6cb2e2d32c4d4afc9e1d707"
@@ -10774,6 +10974,17 @@ solc@^0.4.23:
     semver "^5.3.0"
     yargs "^4.7.1"
 
+solhint@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/solhint/-/solhint-1.2.1.tgz#59a1416cef94da38d587f768a73536d6e3403dd3"
+  dependencies:
+    antlr4 "4.7.0"
+    commander "2.11.0"
+    eslint "^4.19.1"
+    glob "7.1.2"
+    ignore "^3.3.7"
+    lodash "^4.17.10"
+
 solidity-parser-antlr@^0.2.12:
   version "0.2.12"
   resolved "https://registry.yarnpkg.com/solidity-parser-antlr/-/solidity-parser-antlr-0.2.12.tgz#1154f183d5cdda2c7677549ee584dbdb7fb2269c"
@@ -11339,6 +11550,17 @@ symbol@~0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/symbol/-/symbol-0.3.1.tgz#b6f9a900d496a57f02408f22198c109dda063041"
 
+table@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
+  dependencies:
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
+
 tapable@^0.2.5, tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
@@ -11478,7 +11700,7 @@ text-extensions@^1.0.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
 
-text-table@^0.2.0:
+text-table@^0.2.0, text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
 
@@ -13004,6 +13226,12 @@ write-pkg@^3.1.0:
     sort-keys "^2.0.0"
     write-json-file "^2.2.0"
 
+write@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
+  dependencies:
+    mkdirp "^0.5.1"
+
 ws@^3.0.0:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"