aboutsummaryrefslogtreecommitdiffstats
path: root/packages/contracts/src/2.0.0
diff options
context:
space:
mode:
Diffstat (limited to 'packages/contracts/src/2.0.0')
-rw-r--r--packages/contracts/src/2.0.0/forwarder/MixinAssets.sol17
-rw-r--r--packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol16
-rw-r--r--packages/contracts/src/2.0.0/forwarder/MixinForwarderCore.sol57
-rw-r--r--packages/contracts/src/2.0.0/forwarder/MixinWeth.sol12
-rw-r--r--packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol10
-rw-r--r--packages/contracts/src/2.0.0/forwarder/mixins/MAssets.sol2
-rw-r--r--packages/contracts/src/2.0.0/forwarder/mixins/MExchangeWrapper.sol4
-rw-r--r--packages/contracts/src/2.0.0/forwarder/mixins/MForwarderCore.sol42
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol13
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol17
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol17
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/libs/LibEIP712.sol30
-rw-r--r--packages/contracts/src/2.0.0/protocol/Exchange/libs/LibOrder.sol39
-rw-r--r--packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol1
-rw-r--r--packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol22
15 files changed, 138 insertions, 161 deletions
diff --git a/packages/contracts/src/2.0.0/forwarder/MixinAssets.sol b/packages/contracts/src/2.0.0/forwarder/MixinAssets.sol
index 5cf5f831b..e06f9a8e3 100644
--- a/packages/contracts/src/2.0.0/forwarder/MixinAssets.sol
+++ b/packages/contracts/src/2.0.0/forwarder/MixinAssets.sol
@@ -36,28 +36,25 @@ contract MixinAssets is
bytes4 constant internal ERC20_TRANSFER_SELECTOR = bytes4(keccak256("transfer(address,uint256)"));
- /// @dev Withdraws ERC20 tokens from this contract. The contract requires a ZRX balance in order to
+ /// @dev Withdraws assets from this contract. The contract requires a ZRX balance in order to
/// function optimally, and this function allows the ZRX to be withdrawn by owner. It may also be
- /// used to withdraw tokens that were accidentally sent to this contract.
- /// @param token Address of ERC20 token to withdraw.
+ /// used to withdraw assets that were accidentally sent to this contract.
+ /// @param assetData Byte array encoded for the respective asset proxy.
/// @param amount Amount of ERC20 token to withdraw.
- function withdrawERC20(
- address token,
+ function withdrawAsset(
+ bytes assetData,
uint256 amount
)
external
onlyOwner
{
- require(
- IERC20Token(token).transfer(msg.sender, amount),
- "WITHDRAWAL_FAILED"
- );
+ transferAssetToSender(assetData, amount);
}
/// @dev Transfers given amount of asset to sender.
/// @param assetData Byte array encoded for the respective asset proxy.
/// @param amount Amount of asset to transfer to sender.
- function transferPurchasedAssetToSender(
+ function transferAssetToSender(
bytes memory assetData,
uint256 amount
)
diff --git a/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol b/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol
index f3aa483c5..4584bb840 100644
--- a/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol
+++ b/packages/contracts/src/2.0.0/forwarder/MixinExchangeWrapper.sol
@@ -139,7 +139,7 @@ contract MixinExchangeWrapper is
/// @param makerAssetFillAmount Desired amount of makerAsset to buy.
/// @param signatures Proofs that orders have been signed by makers.
/// @return Amounts filled and fees paid by makers and taker.
- function marketBuyWithWeth(
+ function marketBuyExactAmountWithWeth(
LibOrder.Order[] memory orders,
uint256 makerAssetFillAmount,
bytes[] memory signatures
@@ -180,10 +180,16 @@ contract MixinExchangeWrapper is
addFillResults(totalFillResults, singleFillResults);
// Stop execution if the entire amount of makerAsset has been bought
- if (totalFillResults.makerAssetFilledAmount >= makerAssetFillAmount) {
+ uint256 makerAssetFilledAmount = totalFillResults.makerAssetFilledAmount;
+ if (makerAssetFilledAmount >= makerAssetFillAmount) {
break;
}
}
+
+ require(
+ makerAssetFilledAmount >= makerAssetFillAmount,
+ "COMPLETE_FILL_FAILED"
+ );
return totalFillResults;
}
@@ -196,7 +202,7 @@ contract MixinExchangeWrapper is
/// @param zrxBuyAmount Desired amount of ZRX to buy.
/// @param signatures Proofs that orders have been created by makers.
/// @return totalFillResults Amounts filled and fees paid by maker and taker.
- function marketBuyZrxWithWeth(
+ function marketBuyExactZrxWithWeth(
LibOrder.Order[] memory orders,
uint256 zrxBuyAmount,
bytes[] memory signatures
@@ -248,6 +254,10 @@ contract MixinExchangeWrapper is
}
}
+ require(
+ zrxPurchased >= zrxBuyAmount,
+ "COMPLETE_FILL_FAILED"
+ );
return totalFillResults;
}
}
diff --git a/packages/contracts/src/2.0.0/forwarder/MixinForwarderCore.sol b/packages/contracts/src/2.0.0/forwarder/MixinForwarderCore.sol
index 1164ae919..93cbf79be 100644
--- a/packages/contracts/src/2.0.0/forwarder/MixinForwarderCore.sol
+++ b/packages/contracts/src/2.0.0/forwarder/MixinForwarderCore.sol
@@ -23,7 +23,7 @@ import "./libs/LibConstants.sol";
import "./mixins/MWeth.sol";
import "./mixins/MAssets.sol";
import "./mixins/MExchangeWrapper.sol";
-import "./mixins/MForwarderCore.sol";
+import "./interfaces/IForwarderCore.sol";
import "../utils/LibBytes/LibBytes.sol";
import "../protocol/Exchange/libs/LibOrder.sol";
import "../protocol/Exchange/libs/LibFillResults.sol";
@@ -37,7 +37,7 @@ contract MixinForwarderCore is
MWeth,
MAssets,
MExchangeWrapper,
- MForwarderCore
+ IForwarderCore
{
using LibBytes for bytes;
@@ -117,7 +117,7 @@ contract MixinForwarderCore is
);
// Buy back all ZRX spent on fees.
zrxBuyAmount = orderFillResults.takerFeePaid;
- feeOrderFillResults = marketBuyZrxWithWeth(
+ feeOrderFillResults = marketBuyExactZrxWithWeth(
feeOrders,
zrxBuyAmount,
feeSignatures
@@ -125,13 +125,6 @@ contract MixinForwarderCore is
makerAssetAmountPurchased = orderFillResults.makerAssetFilledAmount;
}
- // Ensure that all ZRX fees have been repurchased and no extra WETH owned by this contract has been sold.
- assertValidFillResults(
- orderFillResults,
- feeOrderFillResults,
- zrxBuyAmount
- );
-
// Transfer feePercentage of total ETH spent on primary orders to feeRecipient.
// Refund remaining ETH to msg.sender.
transferEthFeeAndRefund(
@@ -142,7 +135,7 @@ contract MixinForwarderCore is
);
// Transfer purchased assets to msg.sender.
- transferPurchasedAssetToSender(orders[0].makerAssetData, makerAssetAmountPurchased);
+ transferAssetToSender(orders[0].makerAssetData, makerAssetAmountPurchased);
}
/// @dev Attempt to purchase makerAssetFillAmount of makerAsset by selling ETH provided with transaction.
@@ -180,7 +173,7 @@ contract MixinForwarderCore is
if (orders[0].makerAssetData.equals(ZRX_ASSET_DATA)) {
// If the makerAsset is ZRX, it is not necessary to pay fees out of this
// contracts's ZRX balance because fees are factored into the price of the order.
- orderFillResults = marketBuyZrxWithWeth(
+ orderFillResults = marketBuyExactZrxWithWeth(
orders,
makerAssetFillAmount,
signatures
@@ -190,14 +183,14 @@ contract MixinForwarderCore is
} else {
// Attemp to purchase desired amount of makerAsset.
// ZRX fees are payed with this contract's balance.
- orderFillResults = marketBuyWithWeth(
+ orderFillResults = marketBuyExactAmountWithWeth(
orders,
makerAssetFillAmount,
signatures
);
// Buy back all ZRX spent on fees.
zrxBuyAmount = orderFillResults.takerFeePaid;
- feeOrderFillResults = marketBuyZrxWithWeth(
+ feeOrderFillResults = marketBuyExactZrxWithWeth(
feeOrders,
zrxBuyAmount,
feeSignatures
@@ -205,13 +198,6 @@ contract MixinForwarderCore is
makerAssetAmountPurchased = orderFillResults.makerAssetFilledAmount;
}
- // Ensure that all ZRX fees have been repurchased and no extra WETH owned by this contract has been sold.
- assertValidFillResults(
- orderFillResults,
- feeOrderFillResults,
- zrxBuyAmount
- );
-
// Transfer feePercentage of total ETH spent on primary orders to feeRecipient.
// Refund remaining ETH to msg.sender.
transferEthFeeAndRefund(
@@ -222,33 +208,6 @@ contract MixinForwarderCore is
);
// Transfer purchased assets to msg.sender.
- transferPurchasedAssetToSender(orders[0].makerAssetData, makerAssetAmountPurchased);
- }
-
- /// @dev Ensures that all ZRX fees have been repurchased and no extra WETH owned by this contract has been sold.
- /// @param orderFillResults Amounts filled and fees paid for primary orders.
- /// @param feeOrderFillResults Amounts filled and fees paid for fee orders.
- /// @param zrxBuyAmount The amount of ZRX that needed to be repurchased after filling primary orders.
- function assertValidFillResults(
- FillResults memory orderFillResults,
- FillResults memory feeOrderFillResults,
- uint256 zrxBuyAmount
- )
- internal
- view
- {
- // Ensure that all ZRX spent while filling primary orders has been repurchased.
- uint256 zrxPurchased = safeSub(feeOrderFillResults.makerAssetFilledAmount, feeOrderFillResults.takerFeePaid);
- require(
- zrxPurchased >= zrxBuyAmount,
- "COMPLETE_FILL_FAILED"
- );
-
- // Ensure that no extra WETH owned by this contract has been sold.
- uint256 wethSold = safeAdd(orderFillResults.takerAssetFilledAmount, feeOrderFillResults.takerAssetFilledAmount);
- require(
- wethSold <= msg.value,
- "OVERSOLD_WETH"
- );
+ transferAssetToSender(orders[0].makerAssetData, makerAssetAmountPurchased);
}
}
diff --git a/packages/contracts/src/2.0.0/forwarder/MixinWeth.sol b/packages/contracts/src/2.0.0/forwarder/MixinWeth.sol
index 8ba236e7f..e07940776 100644
--- a/packages/contracts/src/2.0.0/forwarder/MixinWeth.sol
+++ b/packages/contracts/src/2.0.0/forwarder/MixinWeth.sol
@@ -71,12 +71,16 @@ contract MixinWeth is
"FEE_PERCENTAGE_TOO_LARGE"
);
- // Calculate amount of WETH that hasn't been sold.
- uint256 wethRemaining = safeSub(
- msg.value,
- safeAdd(wethSoldExcludingFeeOrders, wethSoldForZrx)
+ // Ensure that no extra WETH owned by this contract has been sold.
+ uint256 wethSold = safeAdd(wethSoldExcludingFeeOrders, wethSoldForZrx);
+ require(
+ wethSold <= msg.value,
+ "OVERSOLD_WETH"
);
+ // Calculate amount of WETH that hasn't been sold.
+ uint256 wethRemaining = safeSub(msg.value, wethSold);
+
// Calculate ETH fee to pay to feeRecipient.
uint256 ethFee = getPartialAmount(
feePercentage,
diff --git a/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol b/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol
index 9b0d995eb..1e034c003 100644
--- a/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol
+++ b/packages/contracts/src/2.0.0/forwarder/interfaces/IAssets.sol
@@ -21,13 +21,13 @@ pragma solidity 0.4.24;
contract IAssets {
- /// @dev Withdraws ERC20 tokens from this contract. The contract requires a ZRX balance in order to
+ /// @dev Withdraws assets from this contract. The contract requires a ZRX balance in order to
/// function optimally, and this function allows the ZRX to be withdrawn by owner. It may also be
- /// used to withdraw tokens that were accidentally sent to this contract.
- /// @param token Address of ERC20 token to withdraw.
+ /// used to withdraw assets that were accidentally sent to this contract.
+ /// @param assetData Byte array encoded for the respective asset proxy.
/// @param amount Amount of ERC20 token to withdraw.
- function withdrawERC20(
- address token,
+ function withdrawAsset(
+ bytes assetData,
uint256 amount
)
external;
diff --git a/packages/contracts/src/2.0.0/forwarder/mixins/MAssets.sol b/packages/contracts/src/2.0.0/forwarder/mixins/MAssets.sol
index 340ee0bcb..83636432a 100644
--- a/packages/contracts/src/2.0.0/forwarder/mixins/MAssets.sol
+++ b/packages/contracts/src/2.0.0/forwarder/mixins/MAssets.sol
@@ -28,7 +28,7 @@ contract MAssets is
/// @dev Transfers given amount of asset to sender.
/// @param assetData Byte array encoded for the respective asset proxy.
/// @param amount Amount of asset to transfer to sender.
- function transferPurchasedAssetToSender(
+ function transferAssetToSender(
bytes memory assetData,
uint256 amount
)
diff --git a/packages/contracts/src/2.0.0/forwarder/mixins/MExchangeWrapper.sol b/packages/contracts/src/2.0.0/forwarder/mixins/MExchangeWrapper.sol
index 5a2def7e5..360dea0e4 100644
--- a/packages/contracts/src/2.0.0/forwarder/mixins/MExchangeWrapper.sol
+++ b/packages/contracts/src/2.0.0/forwarder/mixins/MExchangeWrapper.sol
@@ -60,7 +60,7 @@ contract MExchangeWrapper {
/// @param makerAssetFillAmount Desired amount of makerAsset to buy.
/// @param signatures Proofs that orders have been signed by makers.
/// @return Amounts filled and fees paid by makers and taker.
- function marketBuyWithWeth(
+ function marketBuyExactAmountWithWeth(
LibOrder.Order[] memory orders,
uint256 makerAssetFillAmount,
bytes[] memory signatures
@@ -77,7 +77,7 @@ contract MExchangeWrapper {
/// @param zrxBuyAmount Desired amount of ZRX to buy.
/// @param signatures Proofs that orders have been created by makers.
/// @return totalFillResults Amounts filled and fees paid by maker and taker.
- function marketBuyZrxWithWeth(
+ function marketBuyExactZrxWithWeth(
LibOrder.Order[] memory orders,
uint256 zrxBuyAmount,
bytes[] memory signatures
diff --git a/packages/contracts/src/2.0.0/forwarder/mixins/MForwarderCore.sol b/packages/contracts/src/2.0.0/forwarder/mixins/MForwarderCore.sol
deleted file mode 100644
index 0f5cd9c66..000000000
--- a/packages/contracts/src/2.0.0/forwarder/mixins/MForwarderCore.sol
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
-
- Copyright 2018 ZeroEx Intl.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-
-*/
-
-pragma solidity 0.4.24;
-pragma experimental ABIEncoderV2;
-
-import "../../protocol/Exchange/libs/LibOrder.sol";
-import "../../protocol/Exchange/libs/LibFillResults.sol";
-import "../interfaces/IForwarderCore.sol";
-
-
-contract MForwarderCore is
- IForwarderCore
-{
-
- /// @dev Ensures that all ZRX fees have been repurchased and no extra WETH owned by this contract has been sold.
- /// @param orderFillResults Amounts filled and fees paid for primary orders.
- /// @param feeOrderFillResults Amounts filled and fees paid for fee orders.
- /// @param zrxBuyAmount The amount of ZRX that needed to be repurchased after filling primary orders.
- function assertValidFillResults(
- LibFillResults.FillResults memory orderFillResults,
- LibFillResults.FillResults memory feeOrderFillResults,
- uint256 zrxBuyAmount
- )
- internal
- view;
-}
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 ac7382715..44de54817 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinSignatureValidator.sol
@@ -96,14 +96,15 @@ contract MixinSignatureValidator is
"LENGTH_GREATER_THAN_0_REQUIRED"
);
- // Ensure signature is supported
+ // Pop last byte off of signature byte array.
uint8 signatureTypeRaw = uint8(signature.popLastByte());
+
+ // Ensure signature is supported
require(
signatureTypeRaw < uint8(SignatureType.NSignatureTypes),
"SIGNATURE_UNSUPPORTED"
);
- // Pop last byte off of signature byte array.
SignatureType signatureType = SignatureType(signatureTypeRaw);
// Variables are not scoped in Solidity.
@@ -141,7 +142,12 @@ contract MixinSignatureValidator is
v = uint8(signature[0]);
r = signature.readBytes32(1);
s = signature.readBytes32(33);
- recovered = ecrecover(hash, v, r, s);
+ recovered = ecrecover(
+ hash,
+ v,
+ r,
+ s
+ );
isValid = signerAddress == recovered;
return isValid;
@@ -197,7 +203,6 @@ contract MixinSignatureValidator is
// | 0x14 + x | 1 | Signature type is always "\x06" |
} else if (signatureType == SignatureType.Validator) {
// Pop last 20 bytes off of signature byte array.
-
address validatorAddress = signature.popLast20Bytes();
// Ensure signer has approved validator.
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 88d2da7d7..821d30279 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/MixinTransactions.sol
@@ -123,22 +123,25 @@ contract MixinTransactions is
bytes32 dataHash = keccak256(data);
// Assembly for more efficiently computing:
- // keccak256(abi.encode(
+ // keccak256(abi.encodePacked(
// EIP712_ZEROEX_TRANSACTION_SCHEMA_HASH,
// salt,
- // signerAddress,
+ // bytes32(signerAddress),
// keccak256(data)
// ));
assembly {
+ // Load free memory pointer
let memPtr := mload(64)
- mstore(memPtr, schemaHash)
- mstore(add(memPtr, 32), salt)
- mstore(add(memPtr, 64), and(signerAddress, 0xffffffffffffffffffffffffffffffffffffffff))
- mstore(add(memPtr, 96), dataHash)
+
+ mstore(memPtr, schemaHash) // hash of schema
+ mstore(add(memPtr, 32), salt) // salt
+ mstore(add(memPtr, 64), and(signerAddress, 0xffffffffffffffffffffffffffffffffffffffff)) // signerAddress
+ mstore(add(memPtr, 96), dataHash) // hash of data
+
+ // Compute hash
result := keccak256(memPtr, 128)
}
-
return result;
}
diff --git a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol
index 704c7061c..4aad37709 100644
--- a/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol
+++ b/packages/contracts/src/2.0.0/protocol/Exchange/libs/LibAbiEncoder.sol
@@ -24,20 +24,17 @@ import "./LibOrder.sol";
contract LibAbiEncoder {
- /// @dev ABI encodes calldata for `fillOrder` in memory and returns the address range.
- /// This range can be passed into `call` or `delegatecall` to invoke an external
- /// call to `fillOrder`.
+ /// @dev ABI encodes calldata for `fillOrder`.
/// @param order Order struct containing order specifications.
/// @param takerAssetFillAmount Desired amount of takerAsset to sell.
/// @param signature Proof that order has been created by maker.
- /// @return calldataBegin Memory address of ABI encoded calldata.
- /// @return calldataLength Lenfgth of ABI encoded calldata.
+ /// @return ABI encoded calldata for `fillOrder`.
function abiEncodeFillOrder(
LibOrder.Order memory order,
uint256 takerAssetFillAmount,
bytes memory signature
)
- public
+ internal
pure
returns (bytes memory fillOrderCalldata)
{
@@ -207,10 +204,10 @@ contract LibAbiEncoder {
}
// Set length of calldata
- mstore(
- fillOrderCalldata,
- sub(dataAreaEnd, add(fillOrderCalldata, 0x20))
- )
+ mstore(fillOrderCalldata, sub(dataAreaEnd, add(fillOrderCalldata, 0x20)))
+
+ // Increment free memory pointer
+ mstore(0x40, dataAreaEnd)
}
return fillOrderCalldata;
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 1fc41dafd..b02f7632e 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
@@ -30,7 +30,7 @@ contract LibEIP712 {
string constant internal EIP712_DOMAIN_VERSION = "2";
// Hash of the EIP712 Domain Separator Schema
- bytes32 public constant EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH = keccak256(abi.encodePacked(
+ bytes32 constant internal EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH = keccak256(abi.encodePacked(
"EIP712Domain(",
"string name,",
"string version,",
@@ -45,11 +45,11 @@ contract LibEIP712 {
constructor ()
public
{
- EIP712_DOMAIN_HASH = keccak256(abi.encode(
+ EIP712_DOMAIN_HASH = keccak256(abi.encodePacked(
EIP712_DOMAIN_SEPARATOR_SCHEMA_HASH,
keccak256(bytes(EIP712_DOMAIN_NAME)),
keccak256(bytes(EIP712_DOMAIN_VERSION)),
- address(this)
+ bytes32(address(this))
));
}
@@ -59,8 +59,28 @@ contract LibEIP712 {
function hashEIP712Message(bytes32 hashStruct)
internal
view
- returns (bytes32)
+ returns (bytes32 result)
{
- return keccak256(abi.encodePacked(EIP191_HEADER, EIP712_DOMAIN_HASH, hashStruct));
+ bytes32 eip712DomainHash = EIP712_DOMAIN_HASH;
+
+ // Assembly for more efficient computing:
+ // keccak256(abi.encodePacked(
+ // EIP191_HEADER,
+ // EIP712_DOMAIN_HASH,
+ // hashStruct
+ // ));
+
+ assembly {
+ // Load free memory pointer
+ let memPtr := mload(64)
+
+ mstore(memPtr, 0x1901000000000000000000000000000000000000000000000000000000000000) // EIP191 header
+ mstore(add(memPtr, 2), eip712DomainHash) // EIP712 domain hash
+ mstore(add(memPtr, 34), hashStruct) // Hash of struct
+
+ // Compute hash
+ result := keccak256(memPtr, 66)
+ }
+ return result;
}
}
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 4031ff26b..68f4f5f1b 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
@@ -103,11 +103,12 @@ contract LibOrder is
bytes32 takerAssetDataHash = keccak256(order.takerAssetData);
// Assembly for more efficiently computing:
- // keccak256(abi.encode(
- // order.makerAddress,
- // order.takerAddress,
- // order.feeRecipientAddress,
- // order.senderAddress,
+ // keccak256(abi.encodePacked(
+ // EIP712_ORDER_SCHEMA_HASH,
+ // bytes32(order.makerAddress),
+ // bytes32(order.takerAddress),
+ // bytes32(order.feeRecipientAddress),
+ // bytes32(order.senderAddress),
// order.makerAssetAmount,
// order.takerAssetAmount,
// order.makerFee,
@@ -119,24 +120,26 @@ contract LibOrder is
// ));
assembly {
+ // Calculate memory addresses that will be swapped out before hashing
+ let pos1 := sub(order, 32)
+ let pos2 := add(order, 320)
+ let pos3 := add(order, 352)
+
// 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))
+ let temp1 := mload(pos1)
+ let temp2 := mload(pos2)
+ let temp3 := mload(pos3)
// 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)
+ mstore(pos1, schemaHash)
+ mstore(pos2, makerAssetDataHash)
+ mstore(pos3, takerAssetDataHash)
+ result := keccak256(pos1, 416)
// Restore
- // solhint-disable-next-line space-after-comma
- mstore(sub(order, 32), temp1)
- mstore(add(order, 320), temp2)
- mstore(add(order, 352), temp3)
+ mstore(pos1, temp1)
+ mstore(pos2, temp2)
+ mstore(pos3, temp3)
}
return result;
}
diff --git a/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol b/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol
index 923bac97d..d9cec9edc 100644
--- a/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol
+++ b/packages/contracts/src/2.0.0/test/TestExchangeInternals/TestExchangeInternals.sol
@@ -22,6 +22,7 @@ pragma experimental ABIEncoderV2;
import "../../protocol/Exchange/Exchange.sol";
+// solhint-disable no-empty-blocks
contract TestExchangeInternals is
Exchange
{
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 5a349527b..4a99dd9c1 100644
--- a/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
+++ b/packages/contracts/src/2.0.0/test/TestLibs/TestLibs.sol
@@ -22,13 +22,33 @@ pragma experimental ABIEncoderV2;
import "../../protocol/Exchange/libs/LibMath.sol";
import "../../protocol/Exchange/libs/LibOrder.sol";
import "../../protocol/Exchange/libs/LibFillResults.sol";
+import "../../protocol/Exchange/libs/LibAbiEncoder.sol";
contract TestLibs is
LibMath,
LibOrder,
- LibFillResults
+ LibFillResults,
+ LibAbiEncoder
{
+
+ function publicAbiEncodeFillOrder(
+ Order memory order,
+ uint256 takerAssetFillAmount,
+ bytes memory signature
+ )
+ public
+ pure
+ returns (bytes memory fillOrderCalldata)
+ {
+ fillOrderCalldata = abiEncodeFillOrder(
+ order,
+ takerAssetFillAmount,
+ signature
+ );
+ return fillOrderCalldata;
+ }
+
function publicGetPartialAmount(
uint256 numerator,
uint256 denominator,