0034c30224
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27 lines
1.1 KiB
Solidity
27 lines
1.1 KiB
Solidity
// SPDX-License-Identifier: MIT
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// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363Spender.sol)
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pragma solidity ^0.8.20;
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/**
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* @title IERC1363Spender
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* @dev Interface for any contract that wants to support `approveAndCall`
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* from ERC-1363 token contracts.
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*/
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interface IERC1363Spender {
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/**
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* @dev Whenever an ERC-1363 token `owner` approves this contract via `approveAndCall`
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* to spend their tokens, this function is called.
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*
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* NOTE: To accept the approval, this must return
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* `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))`
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* (i.e. 0x7b04a2d0, or its own function selector).
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*
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* @param owner The address which called `approveAndCall` function and previously owned the tokens.
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* @param value The amount of tokens to be spent.
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* @param data Additional data with no specified format.
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* @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))` if approval is allowed unless throwing.
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*/
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function onApprovalReceived(address owner, uint256 value, bytes calldata data) external returns (bytes4);
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}
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