44 lines
1.8 KiB
Solidity
44 lines
1.8 KiB
Solidity
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/*
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* d888888P dP a88888b. dP
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* 88 88 d8' `88 88
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* 88 .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b. 88 .d8888b. .d8888b. 88d888b.
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* 88 88' `88 88' `88 88' `88 88' `88 88' `88 88' `88 88 88' `88 Y8ooooo. 88' `88
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* 88 88. .88 88 88 88 88. .88 88. .88 88. .88 dP Y8. .88 88. .88 88 88 88
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* dP `88888P' dP dP dP `88888P8 `88888P8 `88888P' 88 Y88888P' `88888P8 `88888P' dP dP
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* ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
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*/
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import { ERC20Tornado, IVerifier, IHasher, IERC20, SafeERC20 } from '../Classic/ERC20Tornado.sol';
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/**
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* @dev Modified by tornadocontrib.eth to make it compatible with tornadoProxyLite contract
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*/
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contract ApprovalTornado is ERC20Tornado {
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using SafeERC20 for IERC20;
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address public immutable tornadoProxyLight;
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constructor(
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IVerifier _verifier,
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IHasher _hasher,
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uint256 _denomination,
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uint32 _merkleTreeHeight,
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IERC20 _token,
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address _tornadoProxyLight
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) ERC20Tornado(_verifier, _hasher, _denomination, _merkleTreeHeight, _token) {
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token = _token;
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tornadoProxyLight = _tornadoProxyLight;
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}
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function _processDeposit() internal virtual override {
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require(msg.value == 0, "ETH value is supposed to be 0 for ERC20 instance");
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if (msg.sender == tornadoProxyLight) {
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token.safeTransferFrom(tx.origin, address(this), denomination);
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return;
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}
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super._processDeposit();
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}
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}
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