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123 lines
3.8 KiB
123 lines
3.8 KiB
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.20;
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import {IERC165} from "../utils/introspection/IERC165.sol";
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/**
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* @dev Required interface of an ERC-6909 compliant contract, as defined in the
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* https://eips.ethereum.org/EIPS/eip-6909[ERC].
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*/
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interface IERC6909 is IERC165 {
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/**
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* @dev Emitted when the allowance of a `spender` for an `owner` is set for a token of type `id`.
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* The new allowance is `amount`.
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*/
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event Approval(address indexed owner, address indexed spender, uint256 indexed id, uint256 amount);
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/**
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* @dev Emitted when `owner` grants or revokes operator status for a `spender`.
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*/
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event OperatorSet(address indexed owner, address indexed spender, bool approved);
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/**
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* @dev Emitted when `amount` tokens of type `id` are moved from `sender` to `receiver` initiated by `caller`.
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*/
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event Transfer(
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address caller,
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address indexed sender,
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address indexed receiver,
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uint256 indexed id,
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uint256 amount
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);
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/**
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* @dev Returns the amount of tokens of type `id` owned by `owner`.
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*/
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function balanceOf(address owner, uint256 id) external view returns (uint256);
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/**
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* @dev Returns the amount of tokens of type `id` that `spender` is allowed to spend on behalf of `owner`.
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*
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* NOTE: Does not include operator allowances.
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*/
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function allowance(address owner, address spender, uint256 id) external view returns (uint256);
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/**
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* @dev Returns true if `spender` is set as an operator for `owner`.
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*/
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function isOperator(address owner, address spender) external view returns (bool);
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/**
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* @dev Sets an approval to `spender` for `amount` tokens of type `id` from the caller's tokens.
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*
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* Must return true.
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*/
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function approve(address spender, uint256 id, uint256 amount) external returns (bool);
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/**
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* @dev Grants or revokes unlimited transfer permission of any token id to `spender` for the caller's tokens.
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*
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* Must return true.
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*/
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function setOperator(address spender, bool approved) external returns (bool);
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/**
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* @dev Transfers `amount` of token type `id` from the caller's account to `receiver`.
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*
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* Must return true.
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*/
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function transfer(address receiver, uint256 id, uint256 amount) external returns (bool);
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/**
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* @dev Transfers `amount` of token type `id` from `sender` to `receiver`.
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*
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* Must return true.
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*/
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function transferFrom(address sender, address receiver, uint256 id, uint256 amount) external returns (bool);
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}
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/**
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* @dev Optional extension of {IERC6909} that adds metadata functions.
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*/
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interface IERC6909Metadata is IERC6909 {
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/**
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* @dev Returns the name of the token of type `id`.
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*/
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function name(uint256 id) external view returns (string memory);
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/**
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* @dev Returns the ticker symbol of the token of type `id`.
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*/
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function symbol(uint256 id) external view returns (string memory);
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/**
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* @dev Returns the number of decimals for the token of type `id`.
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*/
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function decimals(uint256 id) external view returns (uint8);
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}
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/**
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* @dev Optional extension of {IERC6909} that adds content URI functions.
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*/
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interface IERC6909ContentURI is IERC6909 {
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/**
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* @dev Returns URI for the contract.
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*/
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function contractURI() external view returns (string memory);
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/**
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* @dev Returns the URI for the token of type `id`.
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*/
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function tokenURI(uint256 id) external view returns (string memory);
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}
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/**
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* @dev Optional extension of {IERC6909} that adds a token supply function.
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*/
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interface IERC6909TokenSupply is IERC6909 {
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/**
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* @dev Returns the total supply of the token of type `id`.
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*/
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function totalSupply(uint256 id) external view returns (uint256);
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}
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