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29 lines
1.2 KiB
29 lines
1.2 KiB
// SPDX-License-Identifier: MIT
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// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC1363Spender.sol)
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pragma solidity ^0.8.20;
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/**
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* @dev Interface for any contract that wants to support {IERC1363-approveAndCall}
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* from {ERC1363} token contracts.
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*/
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interface IERC1363Spender {
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/*
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* Note: the ERC-165 identifier for this interface is 0x7b04a2d0.
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* 0x7b04a2d0 === bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))
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*/
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/**
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* @notice Handle the approval of ERC1363 tokens
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* @dev Any ERC1363 smart contract calls this function on the recipient
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* after an `approve`. This function MAY throw to revert and reject the
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* approval. Return of other than the magic value MUST result in the
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* transaction being reverted.
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* Note: the token contract address is always the message sender.
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* @param owner address The address which called `approveAndCall` function
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* @param amount uint256 The amount of tokens to be spent
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* @param data bytes Additional data with no specified format
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* @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))`unless throwing
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*/
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function onApprovalReceived(address owner, uint256 amount, bytes memory data) external returns (bytes4);
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}
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