33 lines
1.3 KiB
Solidity
33 lines
1.3 KiB
Solidity
// SPDX-License-Identifier: MIT
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// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363Receiver.sol)
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pragma solidity ^0.8.20;
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/**
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* @title IERC1363Receiver
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* @dev Interface for any contract that wants to support `transferAndCall` or `transferFromAndCall`
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* from ERC-1363 token contracts.
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*/
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interface IERC1363Receiver {
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/**
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* @dev Whenever ERC-1363 tokens are transferred to this contract via `transferAndCall` or `transferFromAndCall`
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* by `operator` from `from`, this function is called.
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*
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* NOTE: To accept the transfer, this must return
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* `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))`
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* (i.e. 0x88a7ca5c, or its own function selector).
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*
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* @param operator The address which called `transferAndCall` or `transferFromAndCall` function.
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* @param from The address which the tokens are transferred from.
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* @param value The amount of tokens transferred.
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* @param data Additional data with no specified format.
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* @return `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))` if transfer is allowed unless throwing.
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*/
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function onTransferReceived(
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address operator,
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address from,
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uint256 value,
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bytes calldata data
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) external returns (bytes4);
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}
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