diff options
Diffstat (limited to 'packages/contracts/src/contracts/current/protocol/Exchange/MixinSettlement.sol')
| -rw-r--r-- | packages/contracts/src/contracts/current/protocol/Exchange/MixinSettlement.sol | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/packages/contracts/src/contracts/current/protocol/Exchange/MixinSettlement.sol b/packages/contracts/src/contracts/current/protocol/Exchange/MixinSettlement.sol deleted file mode 100644 index 29a9c87bd..000000000 --- a/packages/contracts/src/contracts/current/protocol/Exchange/MixinSettlement.sol +++ /dev/null @@ -1,182 +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 "../../utils/LibBytes/LibBytes.sol"; -import "./libs/LibMath.sol"; -import "./libs/LibFillResults.sol"; -import "./libs/LibOrder.sol"; -import "./libs/LibExchangeErrors.sol"; -import "./mixins/MMatchOrders.sol"; -import "./mixins/MSettlement.sol"; -import "./mixins/MAssetProxyDispatcher.sol"; - -contract MixinSettlement is - LibBytes, - LibMath, - LibExchangeErrors, - MMatchOrders, - MSettlement, - MAssetProxyDispatcher -{ - // ZRX address encoded as a byte array. - // This will be constant throughout the life of the Exchange contract, - // since ZRX will always be transferred via the ERC20 AssetProxy. - bytes internal ZRX_ASSET_DATA; - uint8 constant ZRX_PROXY_ID = 1; - - /// TODO: _zrxAssetData should be a constant in production. - /// @dev Constructor sets the metadata that will be used for paying ZRX fees. - /// @param _zrxAssetData Byte array containing ERC20 proxy id concatenated with address of ZRX. - constructor (bytes memory _zrxAssetData) - public - { - ZRX_ASSET_DATA = _zrxAssetData; - } - - /// @dev Settles an order by transferring assets between counterparties. - /// @param order Order struct containing order specifications. - /// @param takerAddress Address selling takerAsset and buying makerAsset. - /// @param fillResults Amounts to be filled and fees paid by maker and taker. - function settleOrder( - LibOrder.Order memory order, - address takerAddress, - LibFillResults.FillResults memory fillResults - ) - internal - { - uint8 makerAssetProxyId = uint8(popLastByte(order.makerAssetData)); - uint8 takerAssetProxyId = uint8(popLastByte(order.takerAssetData)); - bytes memory zrxAssetData = ZRX_ASSET_DATA; - dispatchTransferFrom( - order.makerAssetData, - makerAssetProxyId, - order.makerAddress, - takerAddress, - fillResults.makerAssetFilledAmount - ); - dispatchTransferFrom( - order.takerAssetData, - takerAssetProxyId, - takerAddress, - order.makerAddress, - fillResults.takerAssetFilledAmount - ); - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - order.makerAddress, - order.feeRecipientAddress, - fillResults.makerFeePaid - ); - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - takerAddress, - order.feeRecipientAddress, - fillResults.takerFeePaid - ); - } - - /// @dev Settles matched order by transferring appropriate funds between order makers, taker, and fee recipient. - /// @param leftOrder First matched order. - /// @param rightOrder Second matched order. - /// @param takerAddress Address that matched the orders. The taker receives the spread between orders as profit. - /// @param matchedFillResults Struct holding amounts to transfer between makers, taker, and fee recipients. - function settleMatchedOrders( - LibOrder.Order memory leftOrder, - LibOrder.Order memory rightOrder, - address takerAddress, - LibFillResults.MatchedFillResults memory matchedFillResults - ) - internal - { - uint8 leftMakerAssetProxyId = uint8(popLastByte(leftOrder.makerAssetData)); - uint8 rightMakerAssetProxyId = uint8(popLastByte(rightOrder.makerAssetData)); - bytes memory zrxAssetData = ZRX_ASSET_DATA; - // Order makers and taker - dispatchTransferFrom( - leftOrder.makerAssetData, - leftMakerAssetProxyId, - leftOrder.makerAddress, - rightOrder.makerAddress, - matchedFillResults.right.takerAssetFilledAmount - ); - dispatchTransferFrom( - rightOrder.makerAssetData, - rightMakerAssetProxyId, - rightOrder.makerAddress, - leftOrder.makerAddress, - matchedFillResults.left.takerAssetFilledAmount - ); - dispatchTransferFrom( - leftOrder.makerAssetData, - leftMakerAssetProxyId, - leftOrder.makerAddress, - takerAddress, - matchedFillResults.leftMakerAssetSpreadAmount - ); - - // Maker fees - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - leftOrder.makerAddress, - leftOrder.feeRecipientAddress, - matchedFillResults.left.makerFeePaid - ); - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - rightOrder.makerAddress, - rightOrder.feeRecipientAddress, - matchedFillResults.right.makerFeePaid - ); - - // Taker fees - if (leftOrder.feeRecipientAddress == rightOrder.feeRecipientAddress) { - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - takerAddress, - leftOrder.feeRecipientAddress, - safeAdd( - matchedFillResults.left.takerFeePaid, - matchedFillResults.right.takerFeePaid - ) - ); - } else { - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - takerAddress, - leftOrder.feeRecipientAddress, - matchedFillResults.left.takerFeePaid - ); - dispatchTransferFrom( - zrxAssetData, - ZRX_PROXY_ID, - takerAddress, - rightOrder.feeRecipientAddress, - matchedFillResults.right.takerFeePaid - ); - } - } -} |