Beeple Round 2 Open Edition

0xd92e44ac213b9ebda0178e1523cc0ce177b7fa96 Copy

About

Stats

Public Functions 24

Event Types 5

Code Size 52,496 bytes

Library Use

Uses Counters for Counters.Counter.

Events (5)

Approval Event

Parameters

owner	address
approved	address
tokenId	uint256

ApprovalForAll Event

Parameters

owner	address
operator	address
approved	bool

NiftyCreated Event

Parameters

new_owner	address
_niftyType	uint
_tokenId	uint

NiftyPurchased Event

Parameters

_buyer	address
_amount	uint256
_tokenId	uint

Transfer Event

Parameters

from	address
to	address
tokenId	uint256

Constants (5)

_ERC721_RECEIVED Constant

bytes4

0x150b7a02

_INTERFACE_ID_ERC721 Constant

bytes4

0x80ac58cd

_INTERFACE_ID_ERC165 Constant

bytes4

0x01ffc9a7

_INTERFACE_ID_ERC721_ENUMERABLE Constant

bytes4

0x780e9d63

_INTERFACE_ID_ERC721_METADATA Constant

bytes4

0x5b5e139f

State Variables (27)

numNiftiesCurrentlyInContract Variable

uint

contractId Variable

uint

baseURI Variable

string

nameOfCreator Variable

string

contractOwner Variable

address

masterBuilderContract Variable

address

masterBuilderContract Variable

address

_numNiftyPermitted Variable

mapping(uint => uint)

_niftyPrice Variable

mapping(uint => uint)

_niftyIPFSHashes Variable

mapping(uint => string)

_numNiftyMinted Variable

mapping(uint => Counters.Counter)

Internal Variable

_tokenOwner Variable

mapping(uint256 => address)

Internal Variable

_tokenApprovals Variable

mapping(uint256 => address)

Internal Variable

_ownedTokensCount Variable

mapping(address => Counters.Counter)

Internal Variable

_operatorApprovals Variable

mapping(address => mapping(address => bool))

Internal Variable

_supportedInterfaces Variable

mapping(bytes4 => bool)

Internal Variable

_ownedTokens Variable

mapping(address => uint256[])

Internal Variable

_ownedTokensIndex Variable

mapping(uint256 => uint256)

Internal Variable

_allTokens Variable

uint256[]

Internal Variable

_allTokensIndex Variable

mapping(uint256 => uint256)

Internal Variable

_name Variable

string

Internal Variable

_symbol Variable

string

Internal Variable

_tokenURIs Variable

mapping(uint256 => string)

Internal Variable

_tokenIPFSHashes Variable

mapping(uint256 => string)

Internal Variable

_niftyTypeName Variable

mapping(uint256 => string)

Internal Variable

_niftyTypeIPFSHashes Variable

mapping(uint256 => string)

Internal Variable

_tokenName Variable

mapping(uint256 => string)

Internal Variable

Functions Expand All Collapse All

balanceOf

Parameters

Name	Type
owner	address

Properties

Visibility public

Mutability view

Requirements

owner must not be equal to UNKNOWN VALUE

Source Code

function balanceOf(address owner) public view returns (uint256) {
  require(owner != address(0), "ERC721: balance query for the zero address");

  return _ownedTokensCount[owner].current();
}

ownerOf

Parameters

Name	Type
tokenId	uint256

Properties

Visibility public

Mutability view

Requirements

owner must not be equal to UNKNOWN VALUE

Source Code

function ownerOf(uint256 tokenId) public view returns (address) {
  address owner = _tokenOwner[tokenId];
  require(owner != address(0), "ERC721: owner query for nonexistent token");

  return owner;
}

safeTransferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256

Properties

Visibility public

Mutability transaction

Requirements

null

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

null

Source Code

function safeTransferFrom(
  address from,
  address to,
  uint256 tokenId
) public {
  safeTransferFrom(from, to, tokenId, "");
}

transferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256

Properties

Visibility public

Mutability transaction

Requirements

null

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address from,
  address to,
  uint256 tokenId
) public {
  //solhint-disable-next-line max-line-length
  require(
    _isApprovedOrOwner(_msgSender(), tokenId),
    "ERC721: transfer caller is not owner nor approved"
  );

  _transferFrom(from, to, tokenId);
}

approve

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility public

Mutability transaction

Requirements

to must not be equal to owner

One or more of the following: -null - OR owner must be equal to the result of calling _msgSender

Source Code

function approve(address to, uint256 tokenId) public {
  address owner = ownerOf(tokenId);
  require(to != owner, "ERC721: approval to current owner");

  require(
    _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
    "ERC721: approve caller is not owner nor approved for all"
  );

  _tokenApprovals[tokenId] = to;
  emit Approval(owner, to, tokenId);
}

getApproved

Parameters

Name	Type
tokenId	uint256

Properties

Visibility public

Mutability view

Requirements

null

Source Code

function getApproved(uint256 tokenId) public view returns (address) {
  require(_exists(tokenId), "ERC721: approved query for nonexistent token");

  return _tokenApprovals[tokenId];
}

setApprovalForAll

Parameters

Name	Type
to	address
approved	bool

Properties

Visibility public

Mutability transaction

Requirements

to must not be equal to the result of calling _msgSender

Source Code

function setApprovalForAll(address to, bool approved) public {
  require(to != _msgSender(), "ERC721: approve to caller");

  _operatorApprovals[_msgSender()][to] = approved;
  emit ApprovalForAll(_msgSender(), to, approved);
}

isApprovedForAll

Parameters

Name	Type
owner	address
operator	address

Properties

Visibility public

Mutability view

Source Code

function isApprovedForAll(address owner, address operator)
  public
  view
  returns (bool)
{
  return _operatorApprovals[owner][operator];
}

safeTransferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility public

Mutability transaction

Requirements

null

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

null

Source Code

function safeTransferFrom(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) public {
  require(
    _isApprovedOrOwner(_msgSender(), tokenId),
    "ERC721: transfer caller is not owner nor approved"
  );
  _safeTransferFrom(from, to, tokenId, _data);
}

name

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function name() external view returns (string memory) {
  return _name;
}

symbol

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function symbol() external view returns (string memory) {
  return _symbol;
}

tokenURI

Parameters

Name	Type
tokenId	uint256

Properties

Visibility public

Mutability view

Requirements

null

Source Code

function tokenURI(uint256 tokenId) external view returns (string memory) {
  require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
  return _tokenURIs[tokenId];
}

supportsInterface

Parameters

Name	Type
interfaceId	bytes4

Properties

Visibility public

Mutability view

Source Code

function supportsInterface(bytes4 interfaceId) external view returns (bool) {
  return _supportedInterfaces[interfaceId];
}

tokenIPFSHash

Parameters

Name	Type
tokenId	uint256

Properties

Visibility public

Mutability view

Requirements

null

Source Code

function tokenIPFSHash(uint256 tokenId) external view returns (string memory) {
  require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
  //master for static calls
  BuilderMaster bm = BuilderMaster(masterBuilderContract);
  uint256 nifty_type = bm.getNiftyTypeId(tokenId);
  return _niftyTypeIPFSHashes[nifty_type];
}

tokenName

Parameters

Name	Type
tokenId	uint256

Properties

Visibility public

Mutability view

Requirements

null

Source Code

function tokenName(uint256 tokenId) external view returns (string memory) {
  require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
  //master for static calls
  BuilderMaster bm = BuilderMaster(masterBuilderContract);
  uint256 nifty_type = bm.getNiftyTypeId(tokenId);
  return _niftyTypeName[nifty_type];
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return _allTokens.length;
}

tokenOfOwnerByIndex

Parameters

Name	Type
owner	address
index	uint256

Properties

Visibility public

Mutability view

Requirements

index must be less than the result of calling balanceOf with owner

Source Code

function tokenOfOwnerByIndex(address owner, uint256 index)
  public
  view
  returns (uint256)
{
  require(
    index < balanceOf(owner),
    "ERC721Enumerable: owner index out of bounds"
  );
  return _ownedTokens[owner][index];
}

tokenByIndex

Parameters

Name	Type
index	uint256

Properties

Visibility public

Mutability view

Requirements

index must be less than the result of calling totalSupply

Source Code

function tokenByIndex(uint256 index) public view returns (uint256) {
  require(
    index < totalSupply(),
    "ERC721Enumerable: global index out of bounds"
  );
  return _allTokens[index];
}

setNiftyName

Parameters

Name	Type
niftyType	uint
niftyName	string

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

contractOwner must be equal to the sender's address

Source Code

function setNiftyName(uint256 niftyType, string memory niftyName)
  public
  onlyOwner
{
  //allow owner to change nifty name
  _setNiftyTypeName(niftyType, niftyName);
}

setBaseURI

Parameters

Name	Type
newBaseURI	string

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

contractOwner must be equal to the sender's address

Source Code

function setBaseURI(string memory newBaseURI) public onlyOwner {
  //allow owner to change base URI
  baseURI = newBaseURI;
}

isNiftySoldOut

Parameters

Name	Type
niftyType	uint

Properties

Visibility public

Mutability view

Source Code

function isNiftySoldOut(uint256 niftyType) public view returns (bool) {
  if (niftyType > numNiftiesCurrentlyInContract) {
    return true;
  }
  if (_numNiftyMinted[niftyType].current() > _numNiftyPermitted[niftyType]) {
    return (true);
  } else {
    return (false);
  }
}

giftNifty

Parameters

Name	Type
collector_address	address
niftyType	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

contractOwner must be equal to the sender's address

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function giftNifty(address collector_address, uint256 niftyType)
  public
  onlyOwner
{
  //master for static calls
  BuilderMaster bm = BuilderMaster(masterBuilderContract);
  _numNiftyMinted[niftyType].increment();
  //check if this nifty is sold out
  if (isNiftySoldOut(niftyType) == true) {
    revert("Nifty sold out!");
  }
  //mint a nifty
  uint256 specificTokenId = _numNiftyMinted[niftyType].current();
  uint256 tokenId = bm.encodeTokenId(contractId, niftyType, specificTokenId);
  string memory tokenIdStr = bm.uint2str(tokenId);
  string memory tokenURI = bm.strConcat(baseURI, tokenIdStr);
  //mint token
  _mint(collector_address, tokenId);
  _setTokenURI(tokenId, tokenURI);
  //do events
  emit NiftyCreated(collector_address, niftyType, tokenId);
}

massMintNFTs

Parameters

Name	Type
collector_address	address
numToMint	uint
niftyType	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

contractOwner must be equal to the sender's address

Source Code

function massMintNFTs(
  address collector_address,
  uint256 numToMint,
  uint256 niftyType
) public onlyOwner {
  //loop through array and create nifties
  for (uint256 i = 0; i < numToMint; i++) {
    giftNifty(collector_address, niftyType);
  }
}

closeOpenEdition

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

contractOwner must be equal to the sender's address

Source Code

function closeOpenEdition() public onlyOwner {
  _numNiftyPermitted[1] = _numNiftyMinted[1].current();
  _numNiftyPermitted[2] = _numNiftyMinted[2].current();
  _numNiftyPermitted[3] = _numNiftyMinted[3].current();
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.

internal ERC721._safeTransferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

null

Source Code

function _safeTransferFrom(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) internal {
  _transferFrom(from, to, tokenId);
  require(
    _checkOnERC721Received(from, to, tokenId, _data),
    "ERC721: transfer to non ERC721Receiver implementer"
  );
}

internal ERC721._exists

Parameters

Name	Type
tokenId	uint256

Properties

Visibility internal

Mutability view

Source Code

function _exists(uint256 tokenId) internal view returns (bool) {
  address owner = _tokenOwner[tokenId];
  return owner != address(0);
}

internal ERC721._isApprovedOrOwner

Parameters

Name	Type
spender	address
tokenId	uint256

Properties

Visibility internal

Mutability view

Requirements

null

Source Code

function _isApprovedOrOwner(address spender, uint256 tokenId)
  internal
  view
  returns (bool)
{
  require(_exists(tokenId), "ERC721: operator query for nonexistent token");
  address owner = ownerOf(tokenId);
  return (spender == owner ||
    getApproved(tokenId) == spender ||
    isApprovedForAll(owner, spender));
}

internal ERC721._safeMint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function _safeMint(address to, uint256 tokenId) internal {
  _safeMint(to, tokenId, "");
}

internal ERC721._safeMint

Parameters

Name	Type
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function _safeMint(
  address to,
  uint256 tokenId,
  bytes memory _data
) internal {
  _mint(to, tokenId);
  require(
    _checkOnERC721Received(address(0), to, tokenId, _data),
    "ERC721: transfer to non ERC721Receiver implementer"
  );
}

internal ERC721._mint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

Source Code

function _mint(address to, uint256 tokenId) internal {
  require(to != address(0), "ERC721: mint to the zero address");
  require(!_exists(tokenId), "ERC721: token already minted");

  _tokenOwner[tokenId] = to;
  _ownedTokensCount[to].increment();

  emit Transfer(address(0), to, tokenId);
}

internal ERC721._burn

Parameters

Name	Type
owner	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

owner must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(address owner, uint256 tokenId) internal {
  require(ownerOf(tokenId) == owner, "ERC721: burn of token that is not own");

  _clearApproval(tokenId);

  _ownedTokensCount[owner].decrement();
  _tokenOwner[tokenId] = address(0);

  emit Transfer(owner, address(0), tokenId);
}

internal ERC721._burn

Parameters

Name	Type
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(uint256 tokenId) internal {
  _burn(ownerOf(tokenId), tokenId);
}

internal ERC721._transferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

Source Code

function _transferFrom(
  address from,
  address to,
  uint256 tokenId
) internal {
  require(
    ownerOf(tokenId) == from,
    "ERC721: transfer of token that is not own"
  );
  require(to != address(0), "ERC721: transfer to the zero address");

  _clearApproval(tokenId);

  _ownedTokensCount[from].decrement();
  _ownedTokensCount[to].increment();

  _tokenOwner[tokenId] = to;

  emit Transfer(from, to, tokenId);
}

internal ERC721._checkOnERC721Received

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Source Code

function _checkOnERC721Received(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) internal returns (bool) {
  if (!to.isContract()) {
    return true;
  }

  bytes4 retval = IERC721Receiver(to).onERC721Received(
    _msgSender(),
    from,
    tokenId,
    _data
  );
  return (retval == _ERC721_RECEIVED);
}

internal ERC721._clearApproval

Parameters

Name	Type
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _clearApproval(uint256 tokenId) private {
  if (_tokenApprovals[tokenId] != address(0)) {
    _tokenApprovals[tokenId] = address(0);
  }
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal ERC165.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

constructor() internal {
  // Derived contracts need only register support for their own interfaces,
  // we register support for ERC165 itself here
  _registerInterface(_INTERFACE_ID_ERC165);
}

internal ERC165._registerInterface

Parameters

Name	Type
interfaceId	bytes4

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

function _registerInterface(bytes4 interfaceId) internal {
  require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
  _supportedInterfaces[interfaceId] = true;
}

internal ERC721Enumerable._transferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

Source Code

function _transferFrom(
  address from,
  address to,
  uint256 tokenId
) internal {
  super._transferFrom(from, to, tokenId);

  _removeTokenFromOwnerEnumeration(from, tokenId);

  _addTokenToOwnerEnumeration(to, tokenId);
}

internal ERC721Enumerable._mint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

Source Code

function _mint(address to, uint256 tokenId) internal {
  super._mint(to, tokenId);

  _addTokenToOwnerEnumeration(to, tokenId);

  _addTokenToAllTokensEnumeration(tokenId);
}

internal ERC721Enumerable._burn

Parameters

Name	Type
owner	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(address owner, uint256 tokenId) internal {
  super._burn(owner, tokenId);

  _removeTokenFromOwnerEnumeration(owner, tokenId);
  // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund
  _ownedTokensIndex[tokenId] = 0;

  _removeTokenFromAllTokensEnumeration(tokenId);
}

internal ERC721Enumerable._tokensOfOwner

Parameters

Name	Type
owner	address

Properties

Visibility internal

Mutability view

Source Code

function _tokensOfOwner(address owner)
  internal
  view
  returns (uint256[] storage)
{
  return _ownedTokens[owner];
}

internal ERC721Enumerable._addTokenToOwnerEnumeration

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
  _ownedTokensIndex[tokenId] = _ownedTokens[to].length;
  _ownedTokens[to].push(tokenId);
}

internal ERC721Enumerable._addTokenToAllTokensEnumeration

Parameters

Name	Type
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
  _allTokensIndex[tokenId] = _allTokens.length;
  _allTokens.push(tokenId);
}

internal ERC721Enumerable._removeTokenFromOwnerEnumeration

Parameters

Name	Type
from	address
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId)
  private
{
  // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
  // then delete the last slot (swap and pop).

  uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);
  uint256 tokenIndex = _ownedTokensIndex[tokenId];

  // When the token to delete is the last token, the swap operation is unnecessary
  if (tokenIndex != lastTokenIndex) {
    uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

    _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
    _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
  }

  // This also deletes the contents at the last position of the array
  _ownedTokens[from].length--;

  // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by
  // lastTokenId, or just over the end of the array if the token was the last one).
}

internal ERC721Enumerable._removeTokenFromAllTokensEnumeration

Parameters

Name	Type
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
  // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
  // then delete the last slot (swap and pop).

  uint256 lastTokenIndex = _allTokens.length.sub(1);
  uint256 tokenIndex = _allTokensIndex[tokenId];

  // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
  // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
  // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
  uint256 lastTokenId = _allTokens[lastTokenIndex];

  _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
  _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

  // This also deletes the contents at the last position of the array
  _allTokens.length--;
  _allTokensIndex[tokenId] = 0;
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal ERC165.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

constructor() internal {
  // Derived contracts need only register support for their own interfaces,
  // we register support for ERC165 itself here
  _registerInterface(_INTERFACE_ID_ERC165);
}

internal ERC165._registerInterface

Parameters

Name	Type
interfaceId	bytes4

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

function _registerInterface(bytes4 interfaceId) internal {
  require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
  _supportedInterfaces[interfaceId] = true;
}

internal ERC721._safeTransferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

null

Source Code

function _safeTransferFrom(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) internal {
  _transferFrom(from, to, tokenId);
  require(
    _checkOnERC721Received(from, to, tokenId, _data),
    "ERC721: transfer to non ERC721Receiver implementer"
  );
}

internal ERC721._exists

Parameters

Name	Type
tokenId	uint256

Properties

Visibility internal

Mutability view

Source Code

function _exists(uint256 tokenId) internal view returns (bool) {
  address owner = _tokenOwner[tokenId];
  return owner != address(0);
}

internal ERC721._isApprovedOrOwner

Parameters

Name	Type
spender	address
tokenId	uint256

Properties

Visibility internal

Mutability view

Requirements

null

Source Code

function _isApprovedOrOwner(address spender, uint256 tokenId)
  internal
  view
  returns (bool)
{
  require(_exists(tokenId), "ERC721: operator query for nonexistent token");
  address owner = ownerOf(tokenId);
  return (spender == owner ||
    getApproved(tokenId) == spender ||
    isApprovedForAll(owner, spender));
}

internal ERC721._safeMint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function _safeMint(address to, uint256 tokenId) internal {
  _safeMint(to, tokenId, "");
}

internal ERC721._safeMint

Parameters

Name	Type
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function _safeMint(
  address to,
  uint256 tokenId,
  bytes memory _data
) internal {
  _mint(to, tokenId);
  require(
    _checkOnERC721Received(address(0), to, tokenId, _data),
    "ERC721: transfer to non ERC721Receiver implementer"
  );
}

internal ERC721._mint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

Source Code

function _mint(address to, uint256 tokenId) internal {
  require(to != address(0), "ERC721: mint to the zero address");
  require(!_exists(tokenId), "ERC721: token already minted");

  _tokenOwner[tokenId] = to;
  _ownedTokensCount[to].increment();

  emit Transfer(address(0), to, tokenId);
}

internal ERC721._burn

Parameters

Name	Type
owner	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(address owner, uint256 tokenId) internal {
  require(ownerOf(tokenId) == owner, "ERC721: burn of token that is not own");

  _clearApproval(tokenId);

  _ownedTokensCount[owner].decrement();
  _tokenOwner[tokenId] = address(0);

  emit Transfer(owner, address(0), tokenId);
}

internal ERC721._burn

Parameters

Name	Type
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(uint256 tokenId) internal {
  _burn(ownerOf(tokenId), tokenId);
}

internal ERC721._transferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

Source Code

function _transferFrom(
  address from,
  address to,
  uint256 tokenId
) internal {
  require(
    ownerOf(tokenId) == from,
    "ERC721: transfer of token that is not own"
  );
  require(to != address(0), "ERC721: transfer to the zero address");

  _clearApproval(tokenId);

  _ownedTokensCount[from].decrement();
  _ownedTokensCount[to].increment();

  _tokenOwner[tokenId] = to;

  emit Transfer(from, to, tokenId);
}

internal ERC721._checkOnERC721Received

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Source Code

function _checkOnERC721Received(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) internal returns (bool) {
  if (!to.isContract()) {
    return true;
  }

  bytes4 retval = IERC721Receiver(to).onERC721Received(
    _msgSender(),
    from,
    tokenId,
    _data
  );
  return (retval == _ERC721_RECEIVED);
}

internal ERC721._clearApproval

Parameters

Name	Type
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _clearApproval(uint256 tokenId) private {
  if (_tokenApprovals[tokenId] != address(0)) {
    _tokenApprovals[tokenId] = address(0);
  }
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal ERC165.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

constructor() internal {
  // Derived contracts need only register support for their own interfaces,
  // we register support for ERC165 itself here
  _registerInterface(_INTERFACE_ID_ERC165);
}

internal ERC165._registerInterface

Parameters

Name	Type
interfaceId	bytes4

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

function _registerInterface(bytes4 interfaceId) internal {
  require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
  _supportedInterfaces[interfaceId] = true;
}

internal ERC721Metadata._setTokenURI

Parameters

Name	Type
tokenId	uint256
uri	string

Properties

Visibility internal

Mutability transaction

Requirements

null

Source Code

function _setTokenURI(uint256 tokenId, string memory uri) internal {
  require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
  _tokenURIs[tokenId] = uri;
}

internal ERC721Metadata._setTokenIPFSHash

Parameters

Name	Type
tokenId	uint256
ipfs_hash	string

Properties

Visibility internal

Mutability transaction

Requirements

null

Source Code

function _setTokenIPFSHash(uint256 tokenId, string memory ipfs_hash) internal {
  require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
  _tokenIPFSHashes[tokenId] = ipfs_hash;
}

internal ERC721Metadata._setTokenIPFSHashNiftyType

Parameters

Name	Type
niftyType	uint256
ipfs_hash	string

Properties

Visibility internal

Mutability transaction

Source Code

function _setTokenIPFSHashNiftyType(uint256 niftyType, string memory ipfs_hash)
  internal
{
  //   require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
  _niftyTypeIPFSHashes[niftyType] = ipfs_hash;
}

internal ERC721Metadata._setNiftyTypeName

Parameters

Name	Type
nifty_type	uint256
nifty_type_name	string

Properties

Visibility internal

Mutability transaction

Source Code

function _setNiftyTypeName(uint256 nifty_type, string memory nifty_type_name)
  internal
{
  _niftyTypeName[nifty_type] = nifty_type_name;
}

internal ERC721Metadata._burn

Parameters

Name	Type
owner	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(address owner, uint256 tokenId) internal {
  super._burn(owner, tokenId);

  // Clear metadata (if any)
  if (bytes(_tokenURIs[tokenId]).length != 0) {
    delete _tokenURIs[tokenId];
  }
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal ERC165.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

constructor() internal {
  // Derived contracts need only register support for their own interfaces,
  // we register support for ERC165 itself here
  _registerInterface(_INTERFACE_ID_ERC165);
}

internal ERC165._registerInterface

Parameters

Name	Type
interfaceId	bytes4

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

function _registerInterface(bytes4 interfaceId) internal {
  require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
  _supportedInterfaces[interfaceId] = true;
}

internal ERC721._safeTransferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

null

Source Code

function _safeTransferFrom(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) internal {
  _transferFrom(from, to, tokenId);
  require(
    _checkOnERC721Received(from, to, tokenId, _data),
    "ERC721: transfer to non ERC721Receiver implementer"
  );
}

internal ERC721._exists

Parameters

Name	Type
tokenId	uint256

Properties

Visibility internal

Mutability view

Source Code

function _exists(uint256 tokenId) internal view returns (bool) {
  address owner = _tokenOwner[tokenId];
  return owner != address(0);
}

internal ERC721._isApprovedOrOwner

Parameters

Name	Type
spender	address
tokenId	uint256

Properties

Visibility internal

Mutability view

Requirements

null

Source Code

function _isApprovedOrOwner(address spender, uint256 tokenId)
  internal
  view
  returns (bool)
{
  require(_exists(tokenId), "ERC721: operator query for nonexistent token");
  address owner = ownerOf(tokenId);
  return (spender == owner ||
    getApproved(tokenId) == spender ||
    isApprovedForAll(owner, spender));
}

internal ERC721._safeMint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function _safeMint(address to, uint256 tokenId) internal {
  _safeMint(to, tokenId, "");
}

internal ERC721._safeMint

Parameters

Name	Type
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

null

Source Code

function _safeMint(
  address to,
  uint256 tokenId,
  bytes memory _data
) internal {
  _mint(to, tokenId);
  require(
    _checkOnERC721Received(address(0), to, tokenId, _data),
    "ERC721: transfer to non ERC721Receiver implementer"
  );
}

internal ERC721._mint

Parameters

Name	Type
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

the result of calling _exists with tokenId must not be true

Source Code

function _mint(address to, uint256 tokenId) internal {
  require(to != address(0), "ERC721: mint to the zero address");
  require(!_exists(tokenId), "ERC721: token already minted");

  _tokenOwner[tokenId] = to;
  _ownedTokensCount[to].increment();

  emit Transfer(address(0), to, tokenId);
}

internal ERC721._burn

Parameters

Name	Type
owner	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(address owner, uint256 tokenId) internal {
  require(ownerOf(tokenId) == owner, "ERC721: burn of token that is not own");

  _clearApproval(tokenId);

  _ownedTokensCount[owner].decrement();
  _tokenOwner[tokenId] = address(0);

  emit Transfer(owner, address(0), tokenId);
}

internal ERC721._burn

Parameters

Name	Type
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the result of calling ownerOf with tokenId must be equal to the result of calling ownerOf with tokenId

Source Code

function _burn(uint256 tokenId) internal {
  _burn(ownerOf(tokenId), tokenId);
}

internal ERC721._transferFrom

Parameters

Name	Type
from	address
to	address
tokenId	uint256

Properties

Visibility internal

Mutability transaction

Requirements

from must be equal to the result of calling ownerOf with tokenId

to must not be equal to UNKNOWN VALUE

Source Code

function _transferFrom(
  address from,
  address to,
  uint256 tokenId
) internal {
  require(
    ownerOf(tokenId) == from,
    "ERC721: transfer of token that is not own"
  );
  require(to != address(0), "ERC721: transfer to the zero address");

  _clearApproval(tokenId);

  _ownedTokensCount[from].decrement();
  _ownedTokensCount[to].increment();

  _tokenOwner[tokenId] = to;

  emit Transfer(from, to, tokenId);
}

internal ERC721._checkOnERC721Received

Parameters

Name	Type
from	address
to	address
tokenId	uint256
_data	bytes

Properties

Visibility internal

Mutability transaction

Source Code

function _checkOnERC721Received(
  address from,
  address to,
  uint256 tokenId,
  bytes memory _data
) internal returns (bool) {
  if (!to.isContract()) {
    return true;
  }

  bytes4 retval = IERC721Receiver(to).onERC721Received(
    _msgSender(),
    from,
    tokenId,
    _data
  );
  return (retval == _ERC721_RECEIVED);
}

internal ERC721._clearApproval

Parameters

Name	Type
tokenId	uint256

Properties

Visibility private

Mutability transaction

Source Code

function _clearApproval(uint256 tokenId) private {
  if (_tokenApprovals[tokenId] != address(0)) {
    _tokenApprovals[tokenId] = address(0);
  }
}

internal Context.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {}

internal Context._msgSender

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgSender() internal view returns (address payable) {
  return msg.sender;
}

internal Context._msgData

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _msgData() internal view returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
  return msg.data;
}

internal ERC165.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

constructor() internal {
  // Derived contracts need only register support for their own interfaces,
  // we register support for ERC165 itself here
  _registerInterface(_INTERFACE_ID_ERC165);
}

internal ERC165._registerInterface

Parameters

Name	Type
interfaceId	bytes4

Properties

Visibility internal

Mutability transaction

Requirements

_INTERFACE_ID_ERC165 must not be equal to 0xffffffff

Source Code

function _registerInterface(bytes4 interfaceId) internal {
  require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
  _supportedInterfaces[interfaceId] = true;
}

Beeple Round 2 Open Edition

About

Stats

Library Use

Events (5) keyboard_arrow_up

Approval Event

Parameters help Event parameters list the data that an event contains.

ApprovalForAll Event

Parameters help Event parameters list the data that an event contains.

NiftyCreated Event

Parameters help Event parameters list the data that an event contains.

NiftyPurchased Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

Constants (5) keyboard_arrow_up

_ERC721_RECEIVED Constant

_INTERFACE_ID_ERC721 Constant

_INTERFACE_ID_ERC165 Constant

_INTERFACE_ID_ERC721_ENUMERABLE Constant

_INTERFACE_ID_ERC721_METADATA Constant

State Variables (27) keyboard_arrow_up

numNiftiesCurrentlyInContract Variable

contractId Variable

baseURI Variable

nameOfCreator Variable

contractOwner Variable

masterBuilderContract Variable

masterBuilderContract Variable

_numNiftyPermitted Variable

_niftyPrice Variable

_niftyIPFSHashes Variable

_numNiftyMinted Variable

_tokenOwner Variable

_tokenApprovals Variable

_ownedTokensCount Variable

_operatorApprovals Variable

_supportedInterfaces Variable

_ownedTokens Variable

_ownedTokensIndex Variable

_allTokens Variable

_allTokensIndex Variable

_name Variable

_symbol Variable

_tokenURIs Variable

_tokenIPFSHashes Variable

_niftyTypeName Variable

_niftyTypeIPFSHashes Variable

_tokenName Variable

Functions Expand All Collapse All

balanceOf keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

ownerOf keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

safeTransferFrom keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

transferFrom keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

approve keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

getApproved keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

Events (5)

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (5)

State Variables (27)

balanceOf

Parameters

Requirements

ownerOf

Parameters

Requirements

safeTransferFrom

Parameters

Requirements

transferFrom

Parameters

Requirements

approve

Parameters

Requirements

getApproved

Parameters

Requirements

setApprovalForAll

Parameters

Requirements

isApprovedForAll

Parameters

safeTransferFrom

Parameters

Requirements

name

Parameters

symbol

Parameters

tokenURI

Parameters

Requirements

supportsInterface

Parameters

tokenIPFSHash

Parameters

Requirements

tokenName

Parameters

Requirements

totalSupply

Parameters

tokenOfOwnerByIndex

Parameters

Requirements

tokenByIndex

Parameters

Requirements

setNiftyName

Parameters

Modifiers

setBaseURI

Parameters

Modifiers

isNiftySoldOut

Parameters