forked from DecentralizedClimateFoundation/DCIPs
57 lines
1.4 KiB
Solidity
57 lines
1.4 KiB
Solidity
/*
|
|
IERC1155Holder
|
|
|
|
SPDX-License-Identifier: CC0-1.0
|
|
*/
|
|
|
|
import "@openzeppelin/contracts/interfaces/IERC165.sol";
|
|
|
|
pragma solidity ^0.8.0;
|
|
|
|
/**
|
|
* @notice the ERC1155 holder standard provides a common interface to query
|
|
* token balance information
|
|
*/
|
|
interface IERC1155Holder is IERC165 {
|
|
/**
|
|
* @notice emitted when the token is transferred to the contract
|
|
* @param owner functional token owner
|
|
* @param tokenAddress held token address
|
|
* @param tokenId held token ID
|
|
* @param tokenAmount held token amount
|
|
*/
|
|
event Hold(
|
|
address indexed owner,
|
|
address indexed tokenAddress,
|
|
uint256 indexed tokenId,
|
|
uint256 tokenAmount
|
|
);
|
|
|
|
/**
|
|
* @notice emitted when the token is released back to the user
|
|
* @param owner functional token owner
|
|
* @param tokenAddress held token address
|
|
* @param tokenId held token ID
|
|
* @param tokenAmount held token amount
|
|
*/
|
|
event Release(
|
|
address indexed owner,
|
|
address indexed tokenAddress,
|
|
uint256 indexed tokenId,
|
|
uint256 tokenAmount
|
|
);
|
|
|
|
/**
|
|
* @notice get the held balance of the token owner
|
|
* @param tokenAddress held token address
|
|
* @param owner functional token owner
|
|
* @param tokenId held token ID
|
|
* @return held token balance
|
|
*/
|
|
function heldBalanceOf(
|
|
address tokenAddress,
|
|
address owner,
|
|
uint256 tokenId
|
|
) external view returns (uint256);
|
|
}
|