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Diffstat (limited to 'contracts/exchange-libs/contracts/src/LibFillResults.sol')
-rw-r--r-- | contracts/exchange-libs/contracts/src/LibFillResults.sol | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/contracts/exchange-libs/contracts/src/LibFillResults.sol b/contracts/exchange-libs/contracts/src/LibFillResults.sol new file mode 100644 index 000000000..08a1649b8 --- /dev/null +++ b/contracts/exchange-libs/contracts/src/LibFillResults.sol @@ -0,0 +1,53 @@ +/* + + 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; + +import "@0x/contracts-utils/contracts/src/SafeMath.sol"; + + +contract LibFillResults is + SafeMath +{ + struct FillResults { + uint256 makerAssetFilledAmount; // Total amount of makerAsset(s) filled. + uint256 takerAssetFilledAmount; // Total amount of takerAsset(s) filled. + uint256 makerFeePaid; // Total amount of ZRX paid by maker(s) to feeRecipient(s). + uint256 takerFeePaid; // Total amount of ZRX paid by taker to feeRecipients(s). + } + + struct MatchedFillResults { + FillResults left; // Amounts filled and fees paid of left order. + FillResults right; // Amounts filled and fees paid of right order. + uint256 leftMakerAssetSpreadAmount; // Spread between price of left and right order, denominated in the left order's makerAsset, paid to taker. + } + + /// @dev Adds properties of both FillResults instances. + /// Modifies the first FillResults instance specified. + /// @param totalFillResults Fill results instance that will be added onto. + /// @param singleFillResults Fill results instance that will be added to totalFillResults. + function addFillResults(FillResults memory totalFillResults, FillResults memory singleFillResults) + internal + pure + { + totalFillResults.makerAssetFilledAmount = safeAdd(totalFillResults.makerAssetFilledAmount, singleFillResults.makerAssetFilledAmount); + totalFillResults.takerAssetFilledAmount = safeAdd(totalFillResults.takerAssetFilledAmount, singleFillResults.takerAssetFilledAmount); + totalFillResults.makerFeePaid = safeAdd(totalFillResults.makerFeePaid, singleFillResults.makerFeePaid); + totalFillResults.takerFeePaid = safeAdd(totalFillResults.takerFeePaid, singleFillResults.takerFeePaid); + } +} |