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Diffstat (limited to 'packages/contracts/src/2.0.0/forwarder/mixins/MFees.sol')
-rw-r--r-- | packages/contracts/src/2.0.0/forwarder/mixins/MFees.sol | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/packages/contracts/src/2.0.0/forwarder/mixins/MFees.sol b/packages/contracts/src/2.0.0/forwarder/mixins/MFees.sol deleted file mode 100644 index f332637ea..000000000 --- a/packages/contracts/src/2.0.0/forwarder/mixins/MFees.sol +++ /dev/null @@ -1,63 +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; - - -contract MFees { - - /// @dev Pays the feeRecipient feeProportion of the total takerEthAmount, denominated in ETH - /// @param takerEthAmount The total amount that was transacted in WETH, fees are calculated from this value. - /// @param feeProportion The proportion of fees - /// @param feeRecipient The recipient of the fees - /// @return ethFeeAmount Amount of ETH paid to feeRecipient as fee. - function payEthFee( - uint256 takerEthAmount, - uint16 feeProportion, - address feeRecipient - ) - internal - returns (uint256 ethFeeAmount); - - /// @dev Withdraws the remaining WETH, deduct and pay fees from this amount based on the takerTokenAmount to the feeRecipient. - /// If a user overpaid ETH initially, the fees are calculated from the amount traded and deducted from withdrawAmount. - /// Any remaining ETH is sent back to the user. - /// @param ethWithdrawAmount The amount to withdraw from the WETH contract. - /// @param wethAmountSold The total amount that was transacted in WETH, fees are calculated from this value. - /// @param feeProportion The proportion of fees - /// @param feeRecipient The recipient of the fees - function withdrawPayAndDeductEthFee( - uint256 ethWithdrawAmount, - uint256 wethAmountSold, - uint16 feeProportion, - address feeRecipient - ) - internal; - - /// @dev Checks whether the amount of tokens sold against the amount of tokens requested - /// is within a certain threshold. This ensures the caller gets a fair deal when - /// performing any token fee abstraction. Threshold is 95%. If fee abstraction costs more than - /// 5% of the total transaction, we return false. - /// @param requestedSellAmount The amount the user requested, or sent in to a payable function - /// @param tokenAmountSold The amount of the token that was sold after fee abstraction - /// @return bool of whether this is within an acceptable threshold - function isAcceptableThreshold(uint256 requestedSellAmount, uint256 tokenAmountSold) - internal - pure - returns (bool); -} |