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:xref-IERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#IERC721-setApprovalForAll-address-bool- :xref-IERC721-getApproved-uint256-: xref:token/ERC721.adoc#IERC721-getApproved-uint256- :xref-IERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#IERC721-isApprovedForAll-address-address- :xref-IERC165-supportsInterface-bytes4-: xref:utils.adoc#IERC165-supportsInterface-bytes4- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :IERC721Receiver-onERC721Received: pass:normal[xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`IERC721Receiver.onERC721Received`]] :IERC721Receiver-onERC721Received: pass:normal[xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`IERC721Receiver.onERC721Received`]] :xref-IERC721Metadata-name--: xref:token/ERC721.adoc#IERC721Metadata-name-- :xref-IERC721Metadata-symbol--: xref:token/ERC721.adoc#IERC721Metadata-symbol-- :xref-IERC721Metadata-tokenURI-uint256-: xref:token/ERC721.adoc#IERC721Metadata-tokenURI-uint256- :xref-IERC721-balanceOf-address-: xref:token/ERC721.adoc#IERC721-balanceOf-address- :xref-IERC721-ownerOf-uint256-: xref:token/ERC721.adoc#IERC721-ownerOf-uint256- :xref-IERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#IERC721-safeTransferFrom-address-address-uint256-bytes- :xref-IERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#IERC721-safeTransferFrom-address-address-uint256- :xref-IERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#IERC721-transferFrom-address-address-uint256- :xref-IERC721-approve-address-uint256-: 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:xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: 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xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :xref-IERC721Receiver-onERC721Received-address-address-uint256-bytes-: xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes- :IERC721: pass:normal[xref:token/ERC721.adoc#IERC721[`IERC721`]] :IERC721-safeTransferFrom: pass:normal[xref:token/ERC721.adoc#IERC721-safeTransferFrom-address-address-uint256-[`IERC721.safeTransferFrom`]] :Pausable-_pause: pass:normal[xref:utils.adoc#Pausable-_pause--[`Pausable._pause`]] :Pausable-_unpause: pass:normal[xref:utils.adoc#Pausable-_unpause--[`Pausable._unpause`]] :AccessControl: pass:normal[xref:access.adoc#AccessControl[`AccessControl`]] :Ownable: pass:normal[xref:access.adoc#Ownable[`Ownable`]] :xref-ERC721Pausable-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721Pausable-_update-address-uint256-address- :xref-Pausable-paused--: xref:utils.adoc#Pausable-paused-- :xref-Pausable-_requireNotPaused--: xref:utils.adoc#Pausable-_requireNotPaused-- :xref-Pausable-_requirePaused--: xref:utils.adoc#Pausable-_requirePaused-- :xref-Pausable-_pause--: xref:utils.adoc#Pausable-_pause-- :xref-Pausable-_unpause--: xref:utils.adoc#Pausable-_unpause-- :xref-ERC721-supportsInterface-bytes4-: xref:token/ERC721.adoc#ERC721-supportsInterface-bytes4- :xref-ERC721-balanceOf-address-: xref:token/ERC721.adoc#ERC721-balanceOf-address- :xref-ERC721-ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-ownerOf-uint256- :xref-ERC721-name--: xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-tokenURI-uint256-: xref:token/ERC721.adoc#ERC721-tokenURI-uint256- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-_ownerOf-uint256- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-Pausable-Paused-address-: xref:utils.adoc#Pausable-Paused-address- :xref-Pausable-Unpaused-address-: xref:utils.adoc#Pausable-Unpaused-address- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-Pausable-EnforcedPause--: xref:utils.adoc#Pausable-EnforcedPause-- :xref-Pausable-ExpectedPause--: xref:utils.adoc#Pausable-ExpectedPause-- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :ERC721-_update: pass:normal[xref:token/ERC721.adoc#ERC721-_update-address-uint256-address-[`ERC721._update`]] :xref-ERC721Burnable-burn-uint256-: xref:token/ERC721.adoc#ERC721Burnable-burn-uint256- :xref-ERC721-supportsInterface-bytes4-: xref:token/ERC721.adoc#ERC721-supportsInterface-bytes4- :xref-ERC721-balanceOf-address-: xref:token/ERC721.adoc#ERC721-balanceOf-address- :xref-ERC721-ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-ownerOf-uint256- :xref-ERC721-name--: xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-tokenURI-uint256-: xref:token/ERC721.adoc#ERC721-tokenURI-uint256- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-_ownerOf-uint256- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128- :xref-ERC721-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_update-address-uint256-address- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :ERC721-_burn: pass:normal[xref:token/ERC721.adoc#ERC721-_burn-uint256-[`ERC721._burn`]] :xref-ERC721Consecutive-_maxBatchSize--: xref:token/ERC721.adoc#ERC721Consecutive-_maxBatchSize-- :xref-ERC721Consecutive-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721Consecutive-_ownerOf-uint256- :xref-ERC721Consecutive-_mintConsecutive-address-uint96-: xref:token/ERC721.adoc#ERC721Consecutive-_mintConsecutive-address-uint96- :xref-ERC721Consecutive-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721Consecutive-_update-address-uint256-address- :xref-ERC721Consecutive-_firstConsecutiveId--: xref:token/ERC721.adoc#ERC721Consecutive-_firstConsecutiveId-- :xref-ERC721-supportsInterface-bytes4-: xref:token/ERC721.adoc#ERC721-supportsInterface-bytes4- :xref-ERC721-balanceOf-address-: xref:token/ERC721.adoc#ERC721-balanceOf-address- :xref-ERC721-ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-ownerOf-uint256- :xref-ERC721-name--: xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-tokenURI-uint256-: xref:token/ERC721.adoc#ERC721-tokenURI-uint256- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-IERC2309-ConsecutiveTransfer-uint256-uint256-address-address-: xref:interfaces.adoc#IERC2309-ConsecutiveTransfer-uint256-uint256-address-address- :xref-ERC721Consecutive-ERC721ForbiddenBatchMint--: xref:token/ERC721.adoc#ERC721Consecutive-ERC721ForbiddenBatchMint-- :xref-ERC721Consecutive-ERC721ExceededMaxBatchMint-uint256-uint256-: xref:token/ERC721.adoc#ERC721Consecutive-ERC721ExceededMaxBatchMint-uint256-uint256- :xref-ERC721Consecutive-ERC721ForbiddenMint--: xref:token/ERC721.adoc#ERC721Consecutive-ERC721ForbiddenMint-- :xref-ERC721Consecutive-ERC721ForbiddenBatchBurn--: xref:token/ERC721.adoc#ERC721Consecutive-ERC721ForbiddenBatchBurn-- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :ERC721-_ownerOf: pass:normal[xref:token/ERC721.adoc#ERC721-_ownerOf-uint256-[`ERC721._ownerOf`]] 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xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-_ownerOf-uint256- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128- :xref-ERC721-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_update-address-uint256-address- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-IERC4906-MetadataUpdate-uint256-: xref:interfaces.adoc#IERC4906-MetadataUpdate-uint256- :xref-IERC4906-BatchMetadataUpdate-uint256-uint256-: xref:interfaces.adoc#IERC4906-BatchMetadataUpdate-uint256-uint256- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :IERC4906-MetadataUpdate: pass:normal[xref:interfaces.adoc#IERC4906-MetadataUpdate-uint256-[`IERC4906.MetadataUpdate`]] :Votes: pass:normal[xref:governance.adoc#Votes[`Votes`]] :xref-ERC721Votes-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721Votes-_update-address-uint256-address- :xref-ERC721Votes-_getVotingUnits-address-: xref:token/ERC721.adoc#ERC721Votes-_getVotingUnits-address- :xref-ERC721Votes-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721Votes-_increaseBalance-address-uint128- :xref-Votes-clock--: xref:governance.adoc#Votes-clock-- :xref-Votes-CLOCK_MODE--: xref:governance.adoc#Votes-CLOCK_MODE-- :xref-Votes-_validateTimepoint-uint256-: xref:governance.adoc#Votes-_validateTimepoint-uint256- :xref-Votes-getVotes-address-: xref:governance.adoc#Votes-getVotes-address- :xref-Votes-getPastVotes-address-uint256-: xref:governance.adoc#Votes-getPastVotes-address-uint256- :xref-Votes-getPastTotalSupply-uint256-: xref:governance.adoc#Votes-getPastTotalSupply-uint256- :xref-Votes-_getTotalSupply--: xref:governance.adoc#Votes-_getTotalSupply-- :xref-Votes-delegates-address-: xref:governance.adoc#Votes-delegates-address- :xref-Votes-delegate-address-: xref:governance.adoc#Votes-delegate-address- :xref-Votes-delegateBySig-address-uint256-uint256-uint8-bytes32-bytes32-: xref:governance.adoc#Votes-delegateBySig-address-uint256-uint256-uint8-bytes32-bytes32- :xref-Votes-_delegate-address-address-: xref:governance.adoc#Votes-_delegate-address-address- :xref-Votes-_transferVotingUnits-address-address-uint256-: xref:governance.adoc#Votes-_transferVotingUnits-address-address-uint256- :xref-Votes-_moveDelegateVotes-address-address-uint256-: xref:governance.adoc#Votes-_moveDelegateVotes-address-address-uint256- :xref-Votes-_numCheckpoints-address-: xref:governance.adoc#Votes-_numCheckpoints-address- :xref-Votes-_checkpoints-address-uint32-: xref:governance.adoc#Votes-_checkpoints-address-uint32- :xref-Nonces-nonces-address-: xref:utils.adoc#Nonces-nonces-address- :xref-Nonces-_useNonce-address-: xref:utils.adoc#Nonces-_useNonce-address- :xref-Nonces-_useCheckedNonce-address-uint256-: xref:utils.adoc#Nonces-_useCheckedNonce-address-uint256- :xref-EIP712-_domainSeparatorV4--: xref:utils/cryptography.adoc#EIP712-_domainSeparatorV4-- :xref-EIP712-_hashTypedDataV4-bytes32-: xref:utils/cryptography.adoc#EIP712-_hashTypedDataV4-bytes32- :xref-EIP712-eip712Domain--: xref:utils/cryptography.adoc#EIP712-eip712Domain-- :xref-EIP712-_EIP712Name--: xref:utils/cryptography.adoc#EIP712-_EIP712Name-- :xref-EIP712-_EIP712Version--: xref:utils/cryptography.adoc#EIP712-_EIP712Version-- :xref-ERC721-supportsInterface-bytes4-: xref:token/ERC721.adoc#ERC721-supportsInterface-bytes4- :xref-ERC721-balanceOf-address-: xref:token/ERC721.adoc#ERC721-balanceOf-address- :xref-ERC721-ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-ownerOf-uint256- :xref-ERC721-name--: xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-tokenURI-uint256-: xref:token/ERC721.adoc#ERC721-tokenURI-uint256- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-_ownerOf-uint256- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-IVotes-DelegateChanged-address-address-address-: xref:governance.adoc#IVotes-DelegateChanged-address-address-address- :xref-IVotes-DelegateVotesChanged-address-uint256-uint256-: xref:governance.adoc#IVotes-DelegateVotesChanged-address-uint256-uint256- :xref-IERC5267-EIP712DomainChanged--: xref:interfaces.adoc#IERC5267-EIP712DomainChanged-- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-Votes-ERC6372InconsistentClock--: xref:governance.adoc#Votes-ERC6372InconsistentClock-- :xref-Votes-ERC5805FutureLookup-uint256-uint48-: xref:governance.adoc#Votes-ERC5805FutureLookup-uint256-uint48- :xref-IVotes-VotesExpiredSignature-uint256-: xref:governance.adoc#IVotes-VotesExpiredSignature-uint256- :xref-Nonces-InvalidAccountNonce-address-uint256-: xref:utils.adoc#Nonces-InvalidAccountNonce-address-uint256- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :ERC721-_update: pass:normal[xref:token/ERC721.adoc#ERC721-_update-address-uint256-address-[`ERC721._update`]] :IVotes-DelegateVotesChanged: pass:normal[xref:governance.adoc#IVotes-DelegateVotesChanged-address-uint256-uint256-[`IVotes.DelegateVotesChanged`]] :ERC721-_increaseBalance: pass:normal[xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128-[`ERC721._increaseBalance`]] :ERC2981-_setDefaultRoyalty: pass:normal[xref:token/common.adoc#ERC2981-_setDefaultRoyalty-address-uint96-[`ERC2981._setDefaultRoyalty`]] :ERC2981-_setTokenRoyalty: pass:normal[xref:token/common.adoc#ERC2981-_setTokenRoyalty-uint256-address-uint96-[`ERC2981._setTokenRoyalty`]] :xref-ERC721Royalty-supportsInterface-bytes4-: xref:token/ERC721.adoc#ERC721Royalty-supportsInterface-bytes4- :xref-ERC721-balanceOf-address-: xref:token/ERC721.adoc#ERC721-balanceOf-address- :xref-ERC721-ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-ownerOf-uint256- :xref-ERC721-name--: xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-tokenURI-uint256-: xref:token/ERC721.adoc#ERC721-tokenURI-uint256- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-_ownerOf-uint256- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128- :xref-ERC721-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_update-address-uint256-address- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-ERC2981-royaltyInfo-uint256-uint256-: xref:token/common.adoc#ERC2981-royaltyInfo-uint256-uint256- :xref-ERC2981-_feeDenominator--: xref:token/common.adoc#ERC2981-_feeDenominator-- :xref-ERC2981-_setDefaultRoyalty-address-uint96-: xref:token/common.adoc#ERC2981-_setDefaultRoyalty-address-uint96- :xref-ERC2981-_deleteDefaultRoyalty--: xref:token/common.adoc#ERC2981-_deleteDefaultRoyalty-- :xref-ERC2981-_setTokenRoyalty-uint256-address-uint96-: xref:token/common.adoc#ERC2981-_setTokenRoyalty-uint256-address-uint96- :xref-ERC2981-_resetTokenRoyalty-uint256-: xref:token/common.adoc#ERC2981-_resetTokenRoyalty-uint256- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :xref-ERC2981-ERC2981InvalidDefaultRoyalty-uint256-uint256-: xref:token/common.adoc#ERC2981-ERC2981InvalidDefaultRoyalty-uint256-uint256- :xref-ERC2981-ERC2981InvalidDefaultRoyaltyReceiver-address-: xref:token/common.adoc#ERC2981-ERC2981InvalidDefaultRoyaltyReceiver-address- :xref-ERC2981-ERC2981InvalidTokenRoyalty-uint256-uint256-uint256-: xref:token/common.adoc#ERC2981-ERC2981InvalidTokenRoyalty-uint256-uint256-uint256- :xref-ERC2981-ERC2981InvalidTokenRoyaltyReceiver-uint256-address-: xref:token/common.adoc#ERC2981-ERC2981InvalidTokenRoyaltyReceiver-uint256-address- :ERC721Votes: pass:normal[xref:token/ERC721.adoc#ERC721Votes[`ERC721Votes`]] :xref-ERC721Wrapper-constructor-contract-IERC721-: xref:token/ERC721.adoc#ERC721Wrapper-constructor-contract-IERC721- :xref-ERC721Wrapper-depositFor-address-uint256---: xref:token/ERC721.adoc#ERC721Wrapper-depositFor-address-uint256--- :xref-ERC721Wrapper-withdrawTo-address-uint256---: xref:token/ERC721.adoc#ERC721Wrapper-withdrawTo-address-uint256--- :xref-ERC721Wrapper-onERC721Received-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721Wrapper-onERC721Received-address-address-uint256-bytes- :xref-ERC721Wrapper-_recover-address-uint256-: xref:token/ERC721.adoc#ERC721Wrapper-_recover-address-uint256- :xref-ERC721Wrapper-underlying--: xref:token/ERC721.adoc#ERC721Wrapper-underlying-- :xref-ERC721-supportsInterface-bytes4-: xref:token/ERC721.adoc#ERC721-supportsInterface-bytes4- :xref-ERC721-balanceOf-address-: xref:token/ERC721.adoc#ERC721-balanceOf-address- :xref-ERC721-ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-ownerOf-uint256- :xref-ERC721-name--: xref:token/ERC721.adoc#ERC721-name-- :xref-ERC721-symbol--: xref:token/ERC721.adoc#ERC721-symbol-- :xref-ERC721-tokenURI-uint256-: xref:token/ERC721.adoc#ERC721-tokenURI-uint256- :xref-ERC721-_baseURI--: xref:token/ERC721.adoc#ERC721-_baseURI-- :xref-ERC721-approve-address-uint256-: xref:token/ERC721.adoc#ERC721-approve-address-uint256- :xref-ERC721-getApproved-uint256-: xref:token/ERC721.adoc#ERC721-getApproved-uint256- :xref-ERC721-setApprovalForAll-address-bool-: xref:token/ERC721.adoc#ERC721-setApprovalForAll-address-bool- :xref-ERC721-isApprovedForAll-address-address-: xref:token/ERC721.adoc#ERC721-isApprovedForAll-address-address- :xref-ERC721-transferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-transferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256- :xref-ERC721-safeTransferFrom-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-safeTransferFrom-address-address-uint256-bytes- :xref-ERC721-_ownerOf-uint256-: xref:token/ERC721.adoc#ERC721-_ownerOf-uint256- :xref-ERC721-_getApproved-uint256-: xref:token/ERC721.adoc#ERC721-_getApproved-uint256- :xref-ERC721-_isAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_isAuthorized-address-address-uint256- :xref-ERC721-_checkAuthorized-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_checkAuthorized-address-address-uint256- :xref-ERC721-_increaseBalance-address-uint128-: xref:token/ERC721.adoc#ERC721-_increaseBalance-address-uint128- :xref-ERC721-_update-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_update-address-uint256-address- :xref-ERC721-_mint-address-uint256-: xref:token/ERC721.adoc#ERC721-_mint-address-uint256- :xref-ERC721-_safeMint-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256- :xref-ERC721-_safeMint-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeMint-address-uint256-bytes- :xref-ERC721-_burn-uint256-: xref:token/ERC721.adoc#ERC721-_burn-uint256- :xref-ERC721-_transfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_transfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256- :xref-ERC721-_safeTransfer-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721-_safeTransfer-address-address-uint256-bytes- :xref-ERC721-_approve-address-uint256-address-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address- :xref-ERC721-_approve-address-uint256-address-bool-: xref:token/ERC721.adoc#ERC721-_approve-address-uint256-address-bool- :xref-ERC721-_setApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#ERC721-_setApprovalForAll-address-address-bool- :xref-ERC721-_requireOwned-uint256-: xref:token/ERC721.adoc#ERC721-_requireOwned-uint256- :xref-IERC721-Transfer-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Transfer-address-address-uint256- :xref-IERC721-Approval-address-address-uint256-: xref:token/ERC721.adoc#IERC721-Approval-address-address-uint256- :xref-IERC721-ApprovalForAll-address-address-bool-: xref:token/ERC721.adoc#IERC721-ApprovalForAll-address-address-bool- :xref-ERC721Wrapper-ERC721UnsupportedToken-address-: xref:token/ERC721.adoc#ERC721Wrapper-ERC721UnsupportedToken-address- :xref-IERC721Errors-ERC721InvalidOwner-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOwner-address- :xref-IERC721Errors-ERC721NonexistentToken-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721NonexistentToken-uint256- :xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-: xref:interfaces.adoc#IERC721Errors-ERC721IncorrectOwner-address-uint256-address- :xref-IERC721Errors-ERC721InvalidSender-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidSender-address- :xref-IERC721Errors-ERC721InvalidReceiver-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidReceiver-address- :xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-: xref:interfaces.adoc#IERC721Errors-ERC721InsufficientApproval-address-uint256- :xref-IERC721Errors-ERC721InvalidApprover-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidApprover-address- :xref-IERC721Errors-ERC721InvalidOperator-address-: xref:interfaces.adoc#IERC721Errors-ERC721InvalidOperator-address- :IERC721Receiver-onERC721Received: pass:normal[xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`IERC721Receiver.onERC721Received`]] :IERC721-transferFrom: pass:normal[xref:token/ERC721.adoc#IERC721-transferFrom-address-address-uint256-[`IERC721.transferFrom`]] :ERC721Wrapper-_recover: pass:normal[xref:token/ERC721.adoc#ERC721Wrapper-_recover-address-uint256-[`ERC721Wrapper._recover`]] :IERC721Receiver: pass:normal[xref:token/ERC721.adoc#IERC721Receiver[`IERC721Receiver`]] :IERC721-safeTransferFrom: pass:normal[xref:token/ERC721.adoc#IERC721-safeTransferFrom-address-address-uint256-[`IERC721.safeTransferFrom`]] :IERC721-approve: pass:normal[xref:token/ERC721.adoc#IERC721-approve-address-uint256-[`IERC721.approve`]] :IERC721-setApprovalForAll: pass:normal[xref:token/ERC721.adoc#IERC721-setApprovalForAll-address-bool-[`IERC721.setApprovalForAll`]] :xref-ERC721Holder-onERC721Received-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721Holder-onERC721Received-address-address-uint256-bytes- :IERC721Receiver-onERC721Received: pass:normal[xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`IERC721Receiver.onERC721Received`]] :xref-ERC721Utils-checkOnERC721Received-address-address-address-uint256-bytes-: xref:token/ERC721.adoc#ERC721Utils-checkOnERC721Received-address-address-address-uint256-bytes- :IERC721Receiver-onERC721Received: pass:normal[xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`IERC721Receiver.onERC721Received`]] :IERC721Receiver-onERC721Received: pass:normal[xref:token/ERC721.adoc#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`IERC721Receiver.onERC721Received`]] = ERC-721 [.readme-notice] NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/token/erc721 This set of interfaces, contracts, and utilities is all related to the https://eips.ethereum.org/EIPS/eip-721[ERC-721 Non-Fungible Token Standard]. TIP: For a walk through on how to create an ERC-721 token read our xref:ROOT:erc721.adoc[ERC-721 guide]. The ERC specifies four interfaces: * {IERC721}: Core functionality required in all compliant implementation. * {IERC721Metadata}: Optional extension that adds name, symbol, and token URI, almost always included. * {IERC721Enumerable}: Optional extension that allows enumerating the tokens on chain, often not included since it requires large gas overhead. * {IERC721Receiver}: An interface that must be implemented by contracts if they want to accept tokens through `safeTransferFrom`. OpenZeppelin Contracts provides implementations of all four interfaces: * {ERC721}: The core and metadata extensions, with a base URI mechanism. * {ERC721Enumerable}: The enumerable extension. * {ERC721Holder}: A bare bones implementation of the receiver interface. Additionally there are a few of other extensions: * {ERC721Consecutive}: An implementation of https://eips.ethereum.org/EIPS/eip-2309[ERC-2309] for minting batches of tokens during construction, in accordance with ERC-721. * {ERC721URIStorage}: A more flexible but more expensive way of storing metadata. * {ERC721Votes}: Support for voting and vote delegation. * {ERC721Royalty}: A way to signal royalty information following ERC-2981. * {ERC721Pausable}: A primitive to pause contract operation. * {ERC721Burnable}: A way for token holders to burn their own tokens. * {ERC721Wrapper}: Wrapper to create an ERC-721 backed by another ERC-721, with deposit and withdraw methods. Useful in conjunction with {ERC721Votes}. NOTE: This core set of contracts is designed to be unopinionated, allowing developers to access the internal functions in ERC-721 (such as <>) and expose them as external functions in the way they prefer. == Core :Transfer: pass:normal[xref:#IERC721-Transfer-address-address-uint256-[`++Transfer++`]] :Approval: pass:normal[xref:#IERC721-Approval-address-address-uint256-[`++Approval++`]] :ApprovalForAll: pass:normal[xref:#IERC721-ApprovalForAll-address-address-bool-[`++ApprovalForAll++`]] :balanceOf: pass:normal[xref:#IERC721-balanceOf-address-[`++balanceOf++`]] :ownerOf: pass:normal[xref:#IERC721-ownerOf-uint256-[`++ownerOf++`]] :safeTransferFrom: pass:normal[xref:#IERC721-safeTransferFrom-address-address-uint256-bytes-[`++safeTransferFrom++`]] :safeTransferFrom: pass:normal[xref:#IERC721-safeTransferFrom-address-address-uint256-[`++safeTransferFrom++`]] :transferFrom: pass:normal[xref:#IERC721-transferFrom-address-address-uint256-[`++transferFrom++`]] :approve: pass:normal[xref:#IERC721-approve-address-uint256-[`++approve++`]] :setApprovalForAll: pass:normal[xref:#IERC721-setApprovalForAll-address-bool-[`++setApprovalForAll++`]] :getApproved: pass:normal[xref:#IERC721-getApproved-uint256-[`++getApproved++`]] :isApprovedForAll: pass:normal[xref:#IERC721-isApprovedForAll-address-address-[`++isApprovedForAll++`]] :balanceOf-address: pass:normal[xref:#IERC721-balanceOf-address-[`++balanceOf++`]] :ownerOf-uint256: pass:normal[xref:#IERC721-ownerOf-uint256-[`++ownerOf++`]] :safeTransferFrom-address-address-uint256-bytes: pass:normal[xref:#IERC721-safeTransferFrom-address-address-uint256-bytes-[`++safeTransferFrom++`]] :safeTransferFrom-address-address-uint256: pass:normal[xref:#IERC721-safeTransferFrom-address-address-uint256-[`++safeTransferFrom++`]] :transferFrom-address-address-uint256: pass:normal[xref:#IERC721-transferFrom-address-address-uint256-[`++transferFrom++`]] :approve-address-uint256: pass:normal[xref:#IERC721-approve-address-uint256-[`++approve++`]] :setApprovalForAll-address-bool: pass:normal[xref:#IERC721-setApprovalForAll-address-bool-[`++setApprovalForAll++`]] :getApproved-uint256: pass:normal[xref:#IERC721-getApproved-uint256-[`++getApproved++`]] :isApprovedForAll-address-address: pass:normal[xref:#IERC721-isApprovedForAll-address-address-[`++isApprovedForAll++`]] [.contract] [[IERC721]] === `++IERC721++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/IERC721.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; ``` Required interface of an ERC-721 compliant contract. [.contract-index] .Functions -- * {xref-IERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-IERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-IERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-IERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-IERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-IERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-IERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-IERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-IERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] [.contract-subindex-inherited] .IERC165 * {xref-IERC165-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] -- [.contract-index] .Events -- * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[IERC721-balanceOf-address-]] ==== `[.contract-item-name]#++balanceOf++#++(address owner) → uint256 balance++` [.item-kind]#external# Returns the number of tokens in ``owner``'s account. [.contract-item] [[IERC721-ownerOf-uint256-]] ==== `[.contract-item-name]#++ownerOf++#++(uint256 tokenId) → address owner++` [.item-kind]#external# Returns the owner of the `tokenId` token. Requirements: - `tokenId` must exist. [.contract-item] [[IERC721-safeTransferFrom-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++safeTransferFrom++#++(address from, address to, uint256 tokenId, bytes data)++` [.item-kind]#external# Safely transfers `tokenId` token from `from` to `to`. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event. [.contract-item] [[IERC721-safeTransferFrom-address-address-uint256-]] ==== `[.contract-item-name]#++safeTransferFrom++#++(address from, address to, uint256 tokenId)++` [.item-kind]#external# Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients are aware of the ERC-721 protocol to prevent tokens from being forever locked. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event. [.contract-item] [[IERC721-transferFrom-address-address-uint256-]] ==== `[.contract-item-name]#++transferFrom++#++(address from, address to, uint256 tokenId)++` [.item-kind]#external# Transfers `tokenId` token from `from` to `to`. WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721 or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must understand this adds an external call which potentially creates a reentrancy vulnerability. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. Emits a {Transfer} event. [.contract-item] [[IERC721-approve-address-uint256-]] ==== `[.contract-item-name]#++approve++#++(address to, uint256 tokenId)++` [.item-kind]#external# Gives permission to `to` to transfer `tokenId` token to another account. The approval is cleared when the token is transferred. Only a single account can be approved at a time, so approving the zero address clears previous approvals. Requirements: - The caller must own the token or be an approved operator. - `tokenId` must exist. Emits an {Approval} event. [.contract-item] [[IERC721-setApprovalForAll-address-bool-]] ==== `[.contract-item-name]#++setApprovalForAll++#++(address operator, bool approved)++` [.item-kind]#external# Approve or remove `operator` as an operator for the caller. Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. Requirements: - The `operator` cannot be the address zero. Emits an {ApprovalForAll} event. [.contract-item] [[IERC721-getApproved-uint256-]] ==== `[.contract-item-name]#++getApproved++#++(uint256 tokenId) → address operator++` [.item-kind]#external# Returns the account approved for `tokenId` token. Requirements: - `tokenId` must exist. [.contract-item] [[IERC721-isApprovedForAll-address-address-]] ==== `[.contract-item-name]#++isApprovedForAll++#++(address owner, address operator) → bool++` [.item-kind]#external# Returns if the `operator` is allowed to manage all of the assets of `owner`. See {setApprovalForAll} [.contract-item] [[IERC721-Transfer-address-address-uint256-]] ==== `[.contract-item-name]#++Transfer++#++(address indexed from, address indexed to, uint256 indexed tokenId)++` [.item-kind]#event# Emitted when `tokenId` token is transferred from `from` to `to`. [.contract-item] [[IERC721-Approval-address-address-uint256-]] ==== `[.contract-item-name]#++Approval++#++(address indexed owner, address indexed approved, uint256 indexed tokenId)++` [.item-kind]#event# Emitted when `owner` enables `approved` to manage the `tokenId` token. [.contract-item] [[IERC721-ApprovalForAll-address-address-bool-]] ==== `[.contract-item-name]#++ApprovalForAll++#++(address indexed owner, address indexed operator, bool approved)++` [.item-kind]#event# Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. :name: pass:normal[xref:#IERC721Metadata-name--[`++name++`]] :symbol: pass:normal[xref:#IERC721Metadata-symbol--[`++symbol++`]] :tokenURI: pass:normal[xref:#IERC721Metadata-tokenURI-uint256-[`++tokenURI++`]] :name-: pass:normal[xref:#IERC721Metadata-name--[`++name++`]] :symbol-: pass:normal[xref:#IERC721Metadata-symbol--[`++symbol++`]] :tokenURI-uint256: pass:normal[xref:#IERC721Metadata-tokenURI-uint256-[`++tokenURI++`]] [.contract] [[IERC721Metadata]] === `++IERC721Metadata++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/IERC721Metadata.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol"; ``` See https://eips.ethereum.org/EIPS/eip-721 [.contract-index] .Functions -- * {xref-IERC721Metadata-name--}[`++name()++`] * {xref-IERC721Metadata-symbol--}[`++symbol()++`] * {xref-IERC721Metadata-tokenURI-uint256-}[`++tokenURI(tokenId)++`] [.contract-subindex-inherited] .IERC721 * {xref-IERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-IERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-IERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-IERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-IERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-IERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-IERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-IERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-IERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] [.contract-subindex-inherited] .IERC165 * {xref-IERC165-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] -- [.contract-index] .Events -- [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[IERC721Metadata-name--]] ==== `[.contract-item-name]#++name++#++() → string++` [.item-kind]#external# Returns the token collection name. [.contract-item] [[IERC721Metadata-symbol--]] ==== `[.contract-item-name]#++symbol++#++() → string++` [.item-kind]#external# Returns the token collection symbol. [.contract-item] [[IERC721Metadata-tokenURI-uint256-]] ==== `[.contract-item-name]#++tokenURI++#++(uint256 tokenId) → string++` [.item-kind]#external# Returns the Uniform Resource Identifier (URI) for `tokenId` token. :totalSupply: pass:normal[xref:#IERC721Enumerable-totalSupply--[`++totalSupply++`]] :tokenOfOwnerByIndex: pass:normal[xref:#IERC721Enumerable-tokenOfOwnerByIndex-address-uint256-[`++tokenOfOwnerByIndex++`]] :tokenByIndex: pass:normal[xref:#IERC721Enumerable-tokenByIndex-uint256-[`++tokenByIndex++`]] :totalSupply-: pass:normal[xref:#IERC721Enumerable-totalSupply--[`++totalSupply++`]] :tokenOfOwnerByIndex-address-uint256: pass:normal[xref:#IERC721Enumerable-tokenOfOwnerByIndex-address-uint256-[`++tokenOfOwnerByIndex++`]] :tokenByIndex-uint256: pass:normal[xref:#IERC721Enumerable-tokenByIndex-uint256-[`++tokenByIndex++`]] [.contract] [[IERC721Enumerable]] === `++IERC721Enumerable++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/IERC721Enumerable.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol"; ``` See https://eips.ethereum.org/EIPS/eip-721 [.contract-index] .Functions -- * {xref-IERC721Enumerable-totalSupply--}[`++totalSupply()++`] * {xref-IERC721Enumerable-tokenOfOwnerByIndex-address-uint256-}[`++tokenOfOwnerByIndex(owner, index)++`] * {xref-IERC721Enumerable-tokenByIndex-uint256-}[`++tokenByIndex(index)++`] [.contract-subindex-inherited] .IERC721 * {xref-IERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-IERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-IERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-IERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-IERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-IERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-IERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-IERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-IERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] [.contract-subindex-inherited] .IERC165 * {xref-IERC165-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] -- [.contract-index] .Events -- [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[IERC721Enumerable-totalSupply--]] ==== `[.contract-item-name]#++totalSupply++#++() → uint256++` [.item-kind]#external# Returns the total amount of tokens stored by the contract. [.contract-item] [[IERC721Enumerable-tokenOfOwnerByIndex-address-uint256-]] ==== `[.contract-item-name]#++tokenOfOwnerByIndex++#++(address owner, uint256 index) → uint256++` [.item-kind]#external# Returns a token ID owned by `owner` at a given `index` of its token list. Use along with {balanceOf} to enumerate all of ``owner``'s tokens. [.contract-item] [[IERC721Enumerable-tokenByIndex-uint256-]] ==== `[.contract-item-name]#++tokenByIndex++#++(uint256 index) → uint256++` [.item-kind]#external# Returns a token ID at a given `index` of all the tokens stored by the contract. Use along with {totalSupply} to enumerate all tokens. :constructor: pass:normal[xref:#ERC721-constructor-string-string-[`++constructor++`]] :supportsInterface: pass:normal[xref:#ERC721-supportsInterface-bytes4-[`++supportsInterface++`]] :balanceOf: pass:normal[xref:#ERC721-balanceOf-address-[`++balanceOf++`]] :ownerOf: pass:normal[xref:#ERC721-ownerOf-uint256-[`++ownerOf++`]] :name: pass:normal[xref:#ERC721-name--[`++name++`]] :symbol: pass:normal[xref:#ERC721-symbol--[`++symbol++`]] :tokenURI: pass:normal[xref:#ERC721-tokenURI-uint256-[`++tokenURI++`]] :_baseURI: pass:normal[xref:#ERC721-_baseURI--[`++_baseURI++`]] :approve: pass:normal[xref:#ERC721-approve-address-uint256-[`++approve++`]] :getApproved: pass:normal[xref:#ERC721-getApproved-uint256-[`++getApproved++`]] :setApprovalForAll: pass:normal[xref:#ERC721-setApprovalForAll-address-bool-[`++setApprovalForAll++`]] :isApprovedForAll: pass:normal[xref:#ERC721-isApprovedForAll-address-address-[`++isApprovedForAll++`]] :transferFrom: pass:normal[xref:#ERC721-transferFrom-address-address-uint256-[`++transferFrom++`]] :safeTransferFrom: pass:normal[xref:#ERC721-safeTransferFrom-address-address-uint256-[`++safeTransferFrom++`]] :safeTransferFrom: pass:normal[xref:#ERC721-safeTransferFrom-address-address-uint256-bytes-[`++safeTransferFrom++`]] :_ownerOf: pass:normal[xref:#ERC721-_ownerOf-uint256-[`++_ownerOf++`]] :_getApproved: pass:normal[xref:#ERC721-_getApproved-uint256-[`++_getApproved++`]] :_isAuthorized: pass:normal[xref:#ERC721-_isAuthorized-address-address-uint256-[`++_isAuthorized++`]] :_checkAuthorized: pass:normal[xref:#ERC721-_checkAuthorized-address-address-uint256-[`++_checkAuthorized++`]] :_increaseBalance: pass:normal[xref:#ERC721-_increaseBalance-address-uint128-[`++_increaseBalance++`]] :_update: pass:normal[xref:#ERC721-_update-address-uint256-address-[`++_update++`]] :_mint: pass:normal[xref:#ERC721-_mint-address-uint256-[`++_mint++`]] :_safeMint: pass:normal[xref:#ERC721-_safeMint-address-uint256-[`++_safeMint++`]] :_safeMint: pass:normal[xref:#ERC721-_safeMint-address-uint256-bytes-[`++_safeMint++`]] :_burn: pass:normal[xref:#ERC721-_burn-uint256-[`++_burn++`]] :_transfer: pass:normal[xref:#ERC721-_transfer-address-address-uint256-[`++_transfer++`]] :_safeTransfer: pass:normal[xref:#ERC721-_safeTransfer-address-address-uint256-[`++_safeTransfer++`]] :_safeTransfer: pass:normal[xref:#ERC721-_safeTransfer-address-address-uint256-bytes-[`++_safeTransfer++`]] :_approve: pass:normal[xref:#ERC721-_approve-address-uint256-address-[`++_approve++`]] :_approve: pass:normal[xref:#ERC721-_approve-address-uint256-address-bool-[`++_approve++`]] :_setApprovalForAll: pass:normal[xref:#ERC721-_setApprovalForAll-address-address-bool-[`++_setApprovalForAll++`]] :_requireOwned: pass:normal[xref:#ERC721-_requireOwned-uint256-[`++_requireOwned++`]] :constructor-string-string: pass:normal[xref:#ERC721-constructor-string-string-[`++constructor++`]] :supportsInterface-bytes4: pass:normal[xref:#ERC721-supportsInterface-bytes4-[`++supportsInterface++`]] :balanceOf-address: pass:normal[xref:#ERC721-balanceOf-address-[`++balanceOf++`]] :ownerOf-uint256: pass:normal[xref:#ERC721-ownerOf-uint256-[`++ownerOf++`]] :name-: pass:normal[xref:#ERC721-name--[`++name++`]] :symbol-: pass:normal[xref:#ERC721-symbol--[`++symbol++`]] :tokenURI-uint256: pass:normal[xref:#ERC721-tokenURI-uint256-[`++tokenURI++`]] :_baseURI-: pass:normal[xref:#ERC721-_baseURI--[`++_baseURI++`]] :approve-address-uint256: pass:normal[xref:#ERC721-approve-address-uint256-[`++approve++`]] :getApproved-uint256: pass:normal[xref:#ERC721-getApproved-uint256-[`++getApproved++`]] :setApprovalForAll-address-bool: pass:normal[xref:#ERC721-setApprovalForAll-address-bool-[`++setApprovalForAll++`]] :isApprovedForAll-address-address: pass:normal[xref:#ERC721-isApprovedForAll-address-address-[`++isApprovedForAll++`]] :transferFrom-address-address-uint256: pass:normal[xref:#ERC721-transferFrom-address-address-uint256-[`++transferFrom++`]] :safeTransferFrom-address-address-uint256: pass:normal[xref:#ERC721-safeTransferFrom-address-address-uint256-[`++safeTransferFrom++`]] :safeTransferFrom-address-address-uint256-bytes: pass:normal[xref:#ERC721-safeTransferFrom-address-address-uint256-bytes-[`++safeTransferFrom++`]] :_ownerOf-uint256: pass:normal[xref:#ERC721-_ownerOf-uint256-[`++_ownerOf++`]] :_getApproved-uint256: pass:normal[xref:#ERC721-_getApproved-uint256-[`++_getApproved++`]] :_isAuthorized-address-address-uint256: pass:normal[xref:#ERC721-_isAuthorized-address-address-uint256-[`++_isAuthorized++`]] :_checkAuthorized-address-address-uint256: pass:normal[xref:#ERC721-_checkAuthorized-address-address-uint256-[`++_checkAuthorized++`]] :_increaseBalance-address-uint128: pass:normal[xref:#ERC721-_increaseBalance-address-uint128-[`++_increaseBalance++`]] :_update-address-uint256-address: pass:normal[xref:#ERC721-_update-address-uint256-address-[`++_update++`]] :_mint-address-uint256: pass:normal[xref:#ERC721-_mint-address-uint256-[`++_mint++`]] :_safeMint-address-uint256: pass:normal[xref:#ERC721-_safeMint-address-uint256-[`++_safeMint++`]] :_safeMint-address-uint256-bytes: pass:normal[xref:#ERC721-_safeMint-address-uint256-bytes-[`++_safeMint++`]] :_burn-uint256: pass:normal[xref:#ERC721-_burn-uint256-[`++_burn++`]] :_transfer-address-address-uint256: pass:normal[xref:#ERC721-_transfer-address-address-uint256-[`++_transfer++`]] :_safeTransfer-address-address-uint256: pass:normal[xref:#ERC721-_safeTransfer-address-address-uint256-[`++_safeTransfer++`]] :_safeTransfer-address-address-uint256-bytes: pass:normal[xref:#ERC721-_safeTransfer-address-address-uint256-bytes-[`++_safeTransfer++`]] :_approve-address-uint256-address: pass:normal[xref:#ERC721-_approve-address-uint256-address-[`++_approve++`]] :_approve-address-uint256-address-bool: pass:normal[xref:#ERC721-_approve-address-uint256-address-bool-[`++_approve++`]] :_setApprovalForAll-address-address-bool: pass:normal[xref:#ERC721-_setApprovalForAll-address-address-bool-[`++_setApprovalForAll++`]] :_requireOwned-uint256: pass:normal[xref:#ERC721-_requireOwned-uint256-[`++_requireOwned++`]] [.contract] [[ERC721]] === `++ERC721++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/ERC721.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; ``` Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC-721] Non-Fungible Token Standard, including the Metadata extension, but not including the Enumerable extension, which is available separately as {ERC721Enumerable}. [.contract-index] .Functions -- * {xref-ERC721-constructor-string-string-}[`++constructor(name_, symbol_)++`] * {xref-ERC721-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721-constructor-string-string-]] ==== `[.contract-item-name]#++constructor++#++(string name_, string symbol_)++` [.item-kind]#internal# Initializes the contract by setting a `name` and a `symbol` to the token collection. [.contract-item] [[ERC721-supportsInterface-bytes4-]] ==== `[.contract-item-name]#++supportsInterface++#++(bytes4 interfaceId) → bool++` [.item-kind]#public# Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section] to learn more about how these ids are created. This function call must use less than 30 000 gas. [.contract-item] [[ERC721-balanceOf-address-]] ==== `[.contract-item-name]#++balanceOf++#++(address owner) → uint256++` [.item-kind]#public# Returns the number of tokens in ``owner``'s account. [.contract-item] [[ERC721-ownerOf-uint256-]] ==== `[.contract-item-name]#++ownerOf++#++(uint256 tokenId) → address++` [.item-kind]#public# Returns the owner of the `tokenId` token. Requirements: - `tokenId` must exist. [.contract-item] [[ERC721-name--]] ==== `[.contract-item-name]#++name++#++() → string++` [.item-kind]#public# Returns the token collection name. [.contract-item] [[ERC721-symbol--]] ==== `[.contract-item-name]#++symbol++#++() → string++` [.item-kind]#public# Returns the token collection symbol. [.contract-item] [[ERC721-tokenURI-uint256-]] ==== `[.contract-item-name]#++tokenURI++#++(uint256 tokenId) → string++` [.item-kind]#public# Returns the Uniform Resource Identifier (URI) for `tokenId` token. [.contract-item] [[ERC721-_baseURI--]] ==== `[.contract-item-name]#++_baseURI++#++() → string++` [.item-kind]#internal# Base URI for computing {tokenURI}. If set, the resulting URI for each token will be the concatenation of the `baseURI` and the `tokenId`. Empty by default, can be overridden in child contracts. [.contract-item] [[ERC721-approve-address-uint256-]] ==== `[.contract-item-name]#++approve++#++(address to, uint256 tokenId)++` [.item-kind]#public# Gives permission to `to` to transfer `tokenId` token to another account. The approval is cleared when the token is transferred. Only a single account can be approved at a time, so approving the zero address clears previous approvals. Requirements: - The caller must own the token or be an approved operator. - `tokenId` must exist. Emits an {Approval} event. [.contract-item] [[ERC721-getApproved-uint256-]] ==== `[.contract-item-name]#++getApproved++#++(uint256 tokenId) → address++` [.item-kind]#public# Returns the account approved for `tokenId` token. Requirements: - `tokenId` must exist. [.contract-item] [[ERC721-setApprovalForAll-address-bool-]] ==== `[.contract-item-name]#++setApprovalForAll++#++(address operator, bool approved)++` [.item-kind]#public# Approve or remove `operator` as an operator for the caller. Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. Requirements: - The `operator` cannot be the address zero. Emits an {ApprovalForAll} event. [.contract-item] [[ERC721-isApprovedForAll-address-address-]] ==== `[.contract-item-name]#++isApprovedForAll++#++(address owner, address operator) → bool++` [.item-kind]#public# Returns if the `operator` is allowed to manage all of the assets of `owner`. See {setApprovalForAll} [.contract-item] [[ERC721-transferFrom-address-address-uint256-]] ==== `[.contract-item-name]#++transferFrom++#++(address from, address to, uint256 tokenId)++` [.item-kind]#public# Transfers `tokenId` token from `from` to `to`. WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC-721 or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must understand this adds an external call which potentially creates a reentrancy vulnerability. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. Emits a {Transfer} event. [.contract-item] [[ERC721-safeTransferFrom-address-address-uint256-]] ==== `[.contract-item-name]#++safeTransferFrom++#++(address from, address to, uint256 tokenId)++` [.item-kind]#public# Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients are aware of the ERC-721 protocol to prevent tokens from being forever locked. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event. [.contract-item] [[ERC721-safeTransferFrom-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++safeTransferFrom++#++(address from, address to, uint256 tokenId, bytes data)++` [.item-kind]#public# Safely transfers `tokenId` token from `from` to `to`. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event. [.contract-item] [[ERC721-_ownerOf-uint256-]] ==== `[.contract-item-name]#++_ownerOf++#++(uint256 tokenId) → address++` [.item-kind]#internal# Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the core ERC-721 logic MUST be matched with the use of {_increaseBalance} to keep balances consistent with ownership. The invariant to preserve is that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such that `_ownerOf(tokenId)` is `a`. [.contract-item] [[ERC721-_getApproved-uint256-]] ==== `[.contract-item-name]#++_getApproved++#++(uint256 tokenId) → address++` [.item-kind]#internal# Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted. [.contract-item] [[ERC721-_isAuthorized-address-address-uint256-]] ==== `[.contract-item-name]#++_isAuthorized++#++(address owner, address spender, uint256 tokenId) → bool++` [.item-kind]#internal# Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in particular (ignoring whether it is owned by `owner`). WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this assumption. [.contract-item] [[ERC721-_checkAuthorized-address-address-uint256-]] ==== `[.contract-item-name]#++_checkAuthorized++#++(address owner, address spender, uint256 tokenId)++` [.item-kind]#internal# Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner. Reverts if: - `spender` does not have approval from `owner` for `tokenId`. - `spender` does not have approval to manage all of `owner`'s assets. WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this assumption. [.contract-item] [[ERC721-_increaseBalance-address-uint128-]] ==== `[.contract-item-name]#++_increaseBalance++#++(address account, uint128 value)++` [.item-kind]#internal# Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that a uint256 would ever overflow from increments when these increments are bounded to uint128 values. WARNING: Increasing an account's balance using this function tends to be paired with an override of the {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership remain consistent with one another. [.contract-item] [[ERC721-_update-address-uint256-address-]] ==== `[.contract-item-name]#++_update++#++(address to, uint256 tokenId, address auth) → address++` [.item-kind]#internal# Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner (or `to`) is the zero address. Returns the owner of the `tokenId` before the update. The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is either the owner of the token, or approved to operate on the token (by the owner). Emits a {Transfer} event. NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}. [.contract-item] [[ERC721-_mint-address-uint256-]] ==== `[.contract-item-name]#++_mint++#++(address to, uint256 tokenId)++` [.item-kind]#internal# Mints `tokenId` and transfers it to `to`. WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible Requirements: - `tokenId` must not exist. - `to` cannot be the zero address. Emits a {Transfer} event. [.contract-item] [[ERC721-_safeMint-address-uint256-]] ==== `[.contract-item-name]#++_safeMint++#++(address to, uint256 tokenId)++` [.item-kind]#internal# Mints `tokenId`, transfers it to `to` and checks for `to` acceptance. Requirements: - `tokenId` must not exist. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event. [.contract-item] [[ERC721-_safeMint-address-uint256-bytes-]] ==== `[.contract-item-name]#++_safeMint++#++(address to, uint256 tokenId, bytes data)++` [.item-kind]#internal# Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is forwarded in {IERC721Receiver-onERC721Received} to contract recipients. [.contract-item] [[ERC721-_burn-uint256-]] ==== `[.contract-item-name]#++_burn++#++(uint256 tokenId)++` [.item-kind]#internal# Destroys `tokenId`. The approval is cleared when the token is burned. This is an internal function that does not check if the sender is authorized to operate on the token. Requirements: - `tokenId` must exist. Emits a {Transfer} event. [.contract-item] [[ERC721-_transfer-address-address-uint256-]] ==== `[.contract-item-name]#++_transfer++#++(address from, address to, uint256 tokenId)++` [.item-kind]#internal# Transfers `tokenId` from `from` to `to`. As opposed to {transferFrom}, this imposes no restrictions on msg.sender. Requirements: - `to` cannot be the zero address. - `tokenId` token must be owned by `from`. Emits a {Transfer} event. [.contract-item] [[ERC721-_safeTransfer-address-address-uint256-]] ==== `[.contract-item-name]#++_safeTransfer++#++(address from, address to, uint256 tokenId)++` [.item-kind]#internal# Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients are aware of the ERC-721 standard to prevent tokens from being forever locked. `data` is additional data, it has no specified format and it is sent in call to `to`. This internal function is like {safeTransferFrom} in the sense that it invokes {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g. implement alternative mechanisms to perform token transfer, such as signature-based. Requirements: - `tokenId` token must exist and be owned by `from`. - `to` cannot be the zero address. - `from` cannot be the zero address. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event. [.contract-item] [[ERC721-_safeTransfer-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++_safeTransfer++#++(address from, address to, uint256 tokenId, bytes data)++` [.item-kind]#internal# Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is forwarded in {IERC721Receiver-onERC721Received} to contract recipients. [.contract-item] [[ERC721-_approve-address-uint256-address-]] ==== `[.contract-item-name]#++_approve++#++(address to, uint256 tokenId, address auth)++` [.item-kind]#internal# Approve `to` to operate on `tokenId` The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is either the owner of the token, or approved to operate on all tokens held by this owner. Emits an {Approval} event. Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. [.contract-item] [[ERC721-_approve-address-uint256-address-bool-]] ==== `[.contract-item-name]#++_approve++#++(address to, uint256 tokenId, address auth, bool emitEvent)++` [.item-kind]#internal# Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not emitted in the context of transfers. [.contract-item] [[ERC721-_setApprovalForAll-address-address-bool-]] ==== `[.contract-item-name]#++_setApprovalForAll++#++(address owner, address operator, bool approved)++` [.item-kind]#internal# Approve `operator` to operate on all of `owner` tokens Requirements: - operator can't be the address zero. Emits an {ApprovalForAll} event. [.contract-item] [[ERC721-_requireOwned-uint256-]] ==== `[.contract-item-name]#++_requireOwned++#++(uint256 tokenId) → address++` [.item-kind]#internal# Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned). Returns the owner. Overrides to ownership logic should be done to {_ownerOf}. :ERC721OutOfBoundsIndex: pass:normal[xref:#ERC721Enumerable-ERC721OutOfBoundsIndex-address-uint256-[`++ERC721OutOfBoundsIndex++`]] :ERC721EnumerableForbiddenBatchMint: pass:normal[xref:#ERC721Enumerable-ERC721EnumerableForbiddenBatchMint--[`++ERC721EnumerableForbiddenBatchMint++`]] :supportsInterface: pass:normal[xref:#ERC721Enumerable-supportsInterface-bytes4-[`++supportsInterface++`]] :tokenOfOwnerByIndex: pass:normal[xref:#ERC721Enumerable-tokenOfOwnerByIndex-address-uint256-[`++tokenOfOwnerByIndex++`]] :totalSupply: pass:normal[xref:#ERC721Enumerable-totalSupply--[`++totalSupply++`]] :tokenByIndex: pass:normal[xref:#ERC721Enumerable-tokenByIndex-uint256-[`++tokenByIndex++`]] :_update: pass:normal[xref:#ERC721Enumerable-_update-address-uint256-address-[`++_update++`]] :_increaseBalance: pass:normal[xref:#ERC721Enumerable-_increaseBalance-address-uint128-[`++_increaseBalance++`]] :supportsInterface-bytes4: pass:normal[xref:#ERC721Enumerable-supportsInterface-bytes4-[`++supportsInterface++`]] :tokenOfOwnerByIndex-address-uint256: pass:normal[xref:#ERC721Enumerable-tokenOfOwnerByIndex-address-uint256-[`++tokenOfOwnerByIndex++`]] :totalSupply-: pass:normal[xref:#ERC721Enumerable-totalSupply--[`++totalSupply++`]] :tokenByIndex-uint256: pass:normal[xref:#ERC721Enumerable-tokenByIndex-uint256-[`++tokenByIndex++`]] :_update-address-uint256-address: pass:normal[xref:#ERC721Enumerable-_update-address-uint256-address-[`++_update++`]] :_increaseBalance-address-uint128: pass:normal[xref:#ERC721Enumerable-_increaseBalance-address-uint128-[`++_increaseBalance++`]] [.contract] [[ERC721Enumerable]] === `++ERC721Enumerable++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Enumerable.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; ``` This implements an optional extension of {ERC721} defined in the ERC that adds enumerability of all the token ids in the contract as well as all token ids owned by each account. CAUTION: {ERC721} extensions that implement custom `balanceOf` logic, such as {ERC721Consecutive}, interfere with enumerability and should not be used together with {ERC721Enumerable}. [.contract-index] .Functions -- * {xref-ERC721Enumerable-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721Enumerable-tokenOfOwnerByIndex-address-uint256-}[`++tokenOfOwnerByIndex(owner, index)++`] * {xref-ERC721Enumerable-totalSupply--}[`++totalSupply()++`] * {xref-ERC721Enumerable-tokenByIndex-uint256-}[`++tokenByIndex(index)++`] * {xref-ERC721Enumerable-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721Enumerable-_increaseBalance-address-uint128-}[`++_increaseBalance(account, amount)++`] [.contract-subindex-inherited] .IERC721Enumerable [.contract-subindex-inherited] .ERC721 * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .IERC721Enumerable [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- * {xref-ERC721Enumerable-ERC721OutOfBoundsIndex-address-uint256-}[`++ERC721OutOfBoundsIndex(owner, index)++`] * {xref-ERC721Enumerable-ERC721EnumerableForbiddenBatchMint--}[`++ERC721EnumerableForbiddenBatchMint()++`] [.contract-subindex-inherited] .IERC721Enumerable [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721Enumerable-supportsInterface-bytes4-]] ==== `[.contract-item-name]#++supportsInterface++#++(bytes4 interfaceId) → bool++` [.item-kind]#public# Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section] to learn more about how these ids are created. This function call must use less than 30 000 gas. [.contract-item] [[ERC721Enumerable-tokenOfOwnerByIndex-address-uint256-]] ==== `[.contract-item-name]#++tokenOfOwnerByIndex++#++(address owner, uint256 index) → uint256++` [.item-kind]#public# Returns a token ID owned by `owner` at a given `index` of its token list. Use along with {balanceOf} to enumerate all of ``owner``'s tokens. [.contract-item] [[ERC721Enumerable-totalSupply--]] ==== `[.contract-item-name]#++totalSupply++#++() → uint256++` [.item-kind]#public# Returns the total amount of tokens stored by the contract. [.contract-item] [[ERC721Enumerable-tokenByIndex-uint256-]] ==== `[.contract-item-name]#++tokenByIndex++#++(uint256 index) → uint256++` [.item-kind]#public# Returns a token ID at a given `index` of all the tokens stored by the contract. Use along with {totalSupply} to enumerate all tokens. [.contract-item] [[ERC721Enumerable-_update-address-uint256-address-]] ==== `[.contract-item-name]#++_update++#++(address to, uint256 tokenId, address auth) → address++` [.item-kind]#internal# Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner (or `to`) is the zero address. Returns the owner of the `tokenId` before the update. The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is either the owner of the token, or approved to operate on the token (by the owner). Emits a {Transfer} event. NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}. [.contract-item] [[ERC721Enumerable-_increaseBalance-address-uint128-]] ==== `[.contract-item-name]#++_increaseBalance++#++(address account, uint128 amount)++` [.item-kind]#internal# [.contract-item] [[ERC721Enumerable-ERC721OutOfBoundsIndex-address-uint256-]] ==== `[.contract-item-name]#++ERC721OutOfBoundsIndex++#++(address owner, uint256 index)++` [.item-kind]#error# An `owner`'s token query was out of bounds for `index`. NOTE: The owner being `address(0)` indicates a global out of bounds index. [.contract-item] [[ERC721Enumerable-ERC721EnumerableForbiddenBatchMint--]] ==== `[.contract-item-name]#++ERC721EnumerableForbiddenBatchMint++#++()++` [.item-kind]#error# Batch mint is not allowed. :onERC721Received: pass:normal[xref:#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`++onERC721Received++`]] :onERC721Received-address-address-uint256-bytes: pass:normal[xref:#IERC721Receiver-onERC721Received-address-address-uint256-bytes-[`++onERC721Received++`]] [.contract] [[IERC721Receiver]] === `++IERC721Receiver++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/IERC721Receiver.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol"; ``` Interface for any contract that wants to support safeTransfers from ERC-721 asset contracts. [.contract-index] .Functions -- * {xref-IERC721Receiver-onERC721Received-address-address-uint256-bytes-}[`++onERC721Received(operator, from, tokenId, data)++`] -- [.contract-item] [[IERC721Receiver-onERC721Received-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++onERC721Received++#++(address operator, address from, uint256 tokenId, bytes data) → bytes4++` [.item-kind]#external# Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} by `operator` from `from`, this function is called. It must return its Solidity selector to confirm the token transfer. If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. == Extensions :_update: pass:normal[xref:#ERC721Pausable-_update-address-uint256-address-[`++_update++`]] :_update-address-uint256-address: pass:normal[xref:#ERC721Pausable-_update-address-uint256-address-[`++_update++`]] [.contract] [[ERC721Pausable]] === `++ERC721Pausable++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Pausable.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Pausable.sol"; ``` ERC-721 token with pausable token transfers, minting and burning. Useful for scenarios such as preventing trades until the end of an evaluation period, or having an emergency switch for freezing all token transfers in the event of a large bug. IMPORTANT: This contract does not include public pause and unpause functions. In addition to inheriting this contract, you must define both functions, invoking the {Pausable-_pause} and {Pausable-_unpause} internal functions, with appropriate access control, e.g. using {AccessControl} or {Ownable}. Not doing so will make the contract pause mechanism of the contract unreachable, and thus unusable. [.contract-index] .Functions -- * {xref-ERC721Pausable-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] [.contract-subindex-inherited] .Pausable * {xref-Pausable-paused--}[`++paused()++`] * {xref-Pausable-_requireNotPaused--}[`++_requireNotPaused()++`] * {xref-Pausable-_requirePaused--}[`++_requirePaused()++`] * {xref-Pausable-_pause--}[`++_pause()++`] * {xref-Pausable-_unpause--}[`++_unpause()++`] [.contract-subindex-inherited] .ERC721 * {xref-ERC721-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .Pausable * {xref-Pausable-Paused-address-}[`++Paused(account)++`] * {xref-Pausable-Unpaused-address-}[`++Unpaused(account)++`] [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- [.contract-subindex-inherited] .Pausable * {xref-Pausable-EnforcedPause--}[`++EnforcedPause()++`] * {xref-Pausable-ExpectedPause--}[`++ExpectedPause()++`] [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721Pausable-_update-address-uint256-address-]] ==== `[.contract-item-name]#++_update++#++(address to, uint256 tokenId, address auth) → address++` [.item-kind]#internal# See {ERC721-_update}. Requirements: - the contract must not be paused. :burn: pass:normal[xref:#ERC721Burnable-burn-uint256-[`++burn++`]] :burn-uint256: pass:normal[xref:#ERC721Burnable-burn-uint256-[`++burn++`]] [.contract] [[ERC721Burnable]] === `++ERC721Burnable++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Burnable.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol"; ``` ERC-721 Token that can be burned (destroyed). [.contract-index] .Functions -- * {xref-ERC721Burnable-burn-uint256-}[`++burn(tokenId)++`] [.contract-subindex-inherited] .ERC721 * {xref-ERC721-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721Burnable-burn-uint256-]] ==== `[.contract-item-name]#++burn++#++(uint256 tokenId)++` [.item-kind]#public# Burns `tokenId`. See {ERC721-_burn}. Requirements: - The caller must own `tokenId` or be an approved operator. :ERC721ForbiddenBatchMint: pass:normal[xref:#ERC721Consecutive-ERC721ForbiddenBatchMint--[`++ERC721ForbiddenBatchMint++`]] :ERC721ExceededMaxBatchMint: pass:normal[xref:#ERC721Consecutive-ERC721ExceededMaxBatchMint-uint256-uint256-[`++ERC721ExceededMaxBatchMint++`]] :ERC721ForbiddenMint: pass:normal[xref:#ERC721Consecutive-ERC721ForbiddenMint--[`++ERC721ForbiddenMint++`]] :ERC721ForbiddenBatchBurn: pass:normal[xref:#ERC721Consecutive-ERC721ForbiddenBatchBurn--[`++ERC721ForbiddenBatchBurn++`]] :_maxBatchSize: pass:normal[xref:#ERC721Consecutive-_maxBatchSize--[`++_maxBatchSize++`]] :_ownerOf: pass:normal[xref:#ERC721Consecutive-_ownerOf-uint256-[`++_ownerOf++`]] :_mintConsecutive: pass:normal[xref:#ERC721Consecutive-_mintConsecutive-address-uint96-[`++_mintConsecutive++`]] :_update: pass:normal[xref:#ERC721Consecutive-_update-address-uint256-address-[`++_update++`]] :_firstConsecutiveId: pass:normal[xref:#ERC721Consecutive-_firstConsecutiveId--[`++_firstConsecutiveId++`]] :_maxBatchSize-: pass:normal[xref:#ERC721Consecutive-_maxBatchSize--[`++_maxBatchSize++`]] :_ownerOf-uint256: pass:normal[xref:#ERC721Consecutive-_ownerOf-uint256-[`++_ownerOf++`]] :_mintConsecutive-address-uint96: pass:normal[xref:#ERC721Consecutive-_mintConsecutive-address-uint96-[`++_mintConsecutive++`]] :_update-address-uint256-address: pass:normal[xref:#ERC721Consecutive-_update-address-uint256-address-[`++_update++`]] :_firstConsecutiveId-: pass:normal[xref:#ERC721Consecutive-_firstConsecutiveId--[`++_firstConsecutiveId++`]] [.contract] [[ERC721Consecutive]] === `++ERC721Consecutive++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Consecutive.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Consecutive.sol"; ``` Implementation of the ERC-2309 "Consecutive Transfer Extension" as defined in https://eips.ethereum.org/EIPS/eip-2309[ERC-2309]. This extension allows the minting of large batches of tokens, during contract construction only. For upgradeable contracts this implies that batch minting is only available during proxy deployment, and not in subsequent upgrades. These batches are limited to 5000 tokens at a time by default to accommodate off-chain indexers. Using this extension removes the ability to mint single tokens during contract construction. This ability is regained after construction. During construction, only batch minting is allowed. IMPORTANT: This extension does not call the {_update} function for tokens minted in batch. Any logic added to this function through overrides will not be triggered when token are minted in batch. You may want to also override {_increaseBalance} or {_mintConsecutive} to account for these mints. IMPORTANT: When overriding {_mintConsecutive}, be careful about call ordering. {ownerOf} may return invalid values during the {_mintConsecutive} execution if the super call is not called first. To be safe, execute the super call before your custom logic. [.contract-index] .Functions -- * {xref-ERC721Consecutive-_maxBatchSize--}[`++_maxBatchSize()++`] * {xref-ERC721Consecutive-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721Consecutive-_mintConsecutive-address-uint96-}[`++_mintConsecutive(to, batchSize)++`] * {xref-ERC721Consecutive-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721Consecutive-_firstConsecutiveId--}[`++_firstConsecutiveId()++`] [.contract-subindex-inherited] .ERC721 * {xref-ERC721-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 [.contract-subindex-inherited] .IERC2309 -- [.contract-index] .Events -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 [.contract-subindex-inherited] .IERC2309 * {xref-IERC2309-ConsecutiveTransfer-uint256-uint256-address-address-}[`++ConsecutiveTransfer(fromTokenId, toTokenId, fromAddress, toAddress)++`] -- [.contract-index] .Errors -- * {xref-ERC721Consecutive-ERC721ForbiddenBatchMint--}[`++ERC721ForbiddenBatchMint()++`] * {xref-ERC721Consecutive-ERC721ExceededMaxBatchMint-uint256-uint256-}[`++ERC721ExceededMaxBatchMint(batchSize, maxBatch)++`] * {xref-ERC721Consecutive-ERC721ForbiddenMint--}[`++ERC721ForbiddenMint()++`] * {xref-ERC721Consecutive-ERC721ForbiddenBatchBurn--}[`++ERC721ForbiddenBatchBurn()++`] [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 [.contract-subindex-inherited] .IERC2309 -- [.contract-item] [[ERC721Consecutive-_maxBatchSize--]] ==== `[.contract-item-name]#++_maxBatchSize++#++() → uint96++` [.item-kind]#internal# Maximum size of a batch of consecutive tokens. This is designed to limit stress on off-chain indexing services that have to record one entry per token, and have protections against "unreasonably large" batches of tokens. NOTE: Overriding the default value of 5000 will not cause on-chain issues, but may result in the asset not being correctly supported by off-chain indexing services (including marketplaces). [.contract-item] [[ERC721Consecutive-_ownerOf-uint256-]] ==== `[.contract-item-name]#++_ownerOf++#++(uint256 tokenId) → address++` [.item-kind]#internal# See {ERC721-_ownerOf}. Override that checks the sequential ownership structure for tokens that have been minted as part of a batch, and not yet transferred. [.contract-item] [[ERC721Consecutive-_mintConsecutive-address-uint96-]] ==== `[.contract-item-name]#++_mintConsecutive++#++(address to, uint96 batchSize) → uint96++` [.item-kind]#internal# Mint a batch of tokens of length `batchSize` for `to`. Returns the token id of the first token minted in the batch; if `batchSize` is 0, returns the number of consecutive ids minted so far. Requirements: - `batchSize` must not be greater than {_maxBatchSize}. - The function is called in the constructor of the contract (directly or indirectly). CAUTION: Does not emit a `Transfer` event. This is ERC-721 compliant as long as it is done inside of the constructor, which is enforced by this function. CAUTION: Does not invoke `onERC721Received` on the receiver. Emits a {IERC2309-ConsecutiveTransfer} event. [.contract-item] [[ERC721Consecutive-_update-address-uint256-address-]] ==== `[.contract-item-name]#++_update++#++(address to, uint256 tokenId, address auth) → address++` [.item-kind]#internal# See {ERC721-_update}. Override version that restricts normal minting to after construction. WARNING: Using {ERC721Consecutive} prevents minting during construction in favor of {_mintConsecutive}. After construction, {_mintConsecutive} is no longer available and minting through {_update} becomes available. [.contract-item] [[ERC721Consecutive-_firstConsecutiveId--]] ==== `[.contract-item-name]#++_firstConsecutiveId++#++() → uint96++` [.item-kind]#internal# Used to offset the first token id in `_nextConsecutiveId` [.contract-item] [[ERC721Consecutive-ERC721ForbiddenBatchMint--]] ==== `[.contract-item-name]#++ERC721ForbiddenBatchMint++#++()++` [.item-kind]#error# Batch mint is restricted to the constructor. Any batch mint not emitting the {IERC721-Transfer} event outside of the constructor is non ERC-721 compliant. [.contract-item] [[ERC721Consecutive-ERC721ExceededMaxBatchMint-uint256-uint256-]] ==== `[.contract-item-name]#++ERC721ExceededMaxBatchMint++#++(uint256 batchSize, uint256 maxBatch)++` [.item-kind]#error# Exceeds the max amount of mints per batch. [.contract-item] [[ERC721Consecutive-ERC721ForbiddenMint--]] ==== `[.contract-item-name]#++ERC721ForbiddenMint++#++()++` [.item-kind]#error# Individual minting is not allowed. [.contract-item] [[ERC721Consecutive-ERC721ForbiddenBatchBurn--]] ==== `[.contract-item-name]#++ERC721ForbiddenBatchBurn++#++()++` [.item-kind]#error# Batch burn is not supported. :supportsInterface: pass:normal[xref:#ERC721URIStorage-supportsInterface-bytes4-[`++supportsInterface++`]] :tokenURI: pass:normal[xref:#ERC721URIStorage-tokenURI-uint256-[`++tokenURI++`]] :_setTokenURI: pass:normal[xref:#ERC721URIStorage-_setTokenURI-uint256-string-[`++_setTokenURI++`]] :supportsInterface-bytes4: pass:normal[xref:#ERC721URIStorage-supportsInterface-bytes4-[`++supportsInterface++`]] :tokenURI-uint256: pass:normal[xref:#ERC721URIStorage-tokenURI-uint256-[`++tokenURI++`]] :_setTokenURI-uint256-string: pass:normal[xref:#ERC721URIStorage-_setTokenURI-uint256-string-[`++_setTokenURI++`]] [.contract] [[ERC721URIStorage]] === `++ERC721URIStorage++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721URIStorage.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; ``` ERC-721 token with storage based token URI management. [.contract-index] .Functions -- * {xref-ERC721URIStorage-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721URIStorage-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721URIStorage-_setTokenURI-uint256-string-}[`++_setTokenURI(tokenId, _tokenURI)++`] [.contract-subindex-inherited] .ERC721 * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC4906 [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC4906 * {xref-IERC4906-MetadataUpdate-uint256-}[`++MetadataUpdate(_tokenId)++`] * {xref-IERC4906-BatchMetadataUpdate-uint256-uint256-}[`++BatchMetadataUpdate(_fromTokenId, _toTokenId)++`] [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC4906 [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721URIStorage-supportsInterface-bytes4-]] ==== `[.contract-item-name]#++supportsInterface++#++(bytes4 interfaceId) → bool++` [.item-kind]#public# Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section] to learn more about how these ids are created. This function call must use less than 30 000 gas. [.contract-item] [[ERC721URIStorage-tokenURI-uint256-]] ==== `[.contract-item-name]#++tokenURI++#++(uint256 tokenId) → string++` [.item-kind]#public# [.contract-item] [[ERC721URIStorage-_setTokenURI-uint256-string-]] ==== `[.contract-item-name]#++_setTokenURI++#++(uint256 tokenId, string _tokenURI)++` [.item-kind]#internal# Sets `_tokenURI` as the tokenURI of `tokenId`. Emits {IERC4906-MetadataUpdate}. :_update: pass:normal[xref:#ERC721Votes-_update-address-uint256-address-[`++_update++`]] :_getVotingUnits: pass:normal[xref:#ERC721Votes-_getVotingUnits-address-[`++_getVotingUnits++`]] :_increaseBalance: pass:normal[xref:#ERC721Votes-_increaseBalance-address-uint128-[`++_increaseBalance++`]] :_update-address-uint256-address: pass:normal[xref:#ERC721Votes-_update-address-uint256-address-[`++_update++`]] :_getVotingUnits-address: pass:normal[xref:#ERC721Votes-_getVotingUnits-address-[`++_getVotingUnits++`]] :_increaseBalance-address-uint128: pass:normal[xref:#ERC721Votes-_increaseBalance-address-uint128-[`++_increaseBalance++`]] [.contract] [[ERC721Votes]] === `++ERC721Votes++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Votes.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Votes.sol"; ``` Extension of ERC-721 to support voting and delegation as implemented by {Votes}, where each individual NFT counts as 1 vote unit. Tokens do not count as votes until they are delegated, because votes must be tracked which incurs an additional cost on every transfer. Token holders can either delegate to a trusted representative who will decide how to make use of the votes in governance decisions, or they can delegate to themselves to be their own representative. [.contract-index] .Functions -- * {xref-ERC721Votes-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721Votes-_getVotingUnits-address-}[`++_getVotingUnits(account)++`] * {xref-ERC721Votes-_increaseBalance-address-uint128-}[`++_increaseBalance(account, amount)++`] [.contract-subindex-inherited] .Votes * {xref-Votes-clock--}[`++clock()++`] * {xref-Votes-CLOCK_MODE--}[`++CLOCK_MODE()++`] * {xref-Votes-_validateTimepoint-uint256-}[`++_validateTimepoint(timepoint)++`] * {xref-Votes-getVotes-address-}[`++getVotes(account)++`] * {xref-Votes-getPastVotes-address-uint256-}[`++getPastVotes(account, timepoint)++`] * {xref-Votes-getPastTotalSupply-uint256-}[`++getPastTotalSupply(timepoint)++`] * {xref-Votes-_getTotalSupply--}[`++_getTotalSupply()++`] * {xref-Votes-delegates-address-}[`++delegates(account)++`] * {xref-Votes-delegate-address-}[`++delegate(delegatee)++`] * {xref-Votes-delegateBySig-address-uint256-uint256-uint8-bytes32-bytes32-}[`++delegateBySig(delegatee, nonce, expiry, v, r, s)++`] * {xref-Votes-_delegate-address-address-}[`++_delegate(account, delegatee)++`] * {xref-Votes-_transferVotingUnits-address-address-uint256-}[`++_transferVotingUnits(from, to, amount)++`] * {xref-Votes-_moveDelegateVotes-address-address-uint256-}[`++_moveDelegateVotes(from, to, amount)++`] * {xref-Votes-_numCheckpoints-address-}[`++_numCheckpoints(account)++`] * {xref-Votes-_checkpoints-address-uint32-}[`++_checkpoints(account, pos)++`] [.contract-subindex-inherited] .IERC5805 [.contract-subindex-inherited] .IVotes [.contract-subindex-inherited] .IERC6372 [.contract-subindex-inherited] .Nonces * {xref-Nonces-nonces-address-}[`++nonces(owner)++`] * {xref-Nonces-_useNonce-address-}[`++_useNonce(owner)++`] * {xref-Nonces-_useCheckedNonce-address-uint256-}[`++_useCheckedNonce(owner, nonce)++`] [.contract-subindex-inherited] .EIP712 * {xref-EIP712-_domainSeparatorV4--}[`++_domainSeparatorV4()++`] * {xref-EIP712-_hashTypedDataV4-bytes32-}[`++_hashTypedDataV4(structHash)++`] * {xref-EIP712-eip712Domain--}[`++eip712Domain()++`] * {xref-EIP712-_EIP712Name--}[`++_EIP712Name()++`] * {xref-EIP712-_EIP712Version--}[`++_EIP712Version()++`] [.contract-subindex-inherited] .IERC5267 [.contract-subindex-inherited] .ERC721 * {xref-ERC721-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .Votes [.contract-subindex-inherited] .IERC5805 [.contract-subindex-inherited] .IVotes * {xref-IVotes-DelegateChanged-address-address-address-}[`++DelegateChanged(delegator, fromDelegate, toDelegate)++`] * {xref-IVotes-DelegateVotesChanged-address-uint256-uint256-}[`++DelegateVotesChanged(delegate, previousVotes, newVotes)++`] [.contract-subindex-inherited] .IERC6372 [.contract-subindex-inherited] .Nonces [.contract-subindex-inherited] .EIP712 [.contract-subindex-inherited] .IERC5267 * {xref-IERC5267-EIP712DomainChanged--}[`++EIP712DomainChanged()++`] [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- [.contract-subindex-inherited] .Votes * {xref-Votes-ERC6372InconsistentClock--}[`++ERC6372InconsistentClock()++`] * {xref-Votes-ERC5805FutureLookup-uint256-uint48-}[`++ERC5805FutureLookup(timepoint, clock)++`] [.contract-subindex-inherited] .IERC5805 [.contract-subindex-inherited] .IVotes * {xref-IVotes-VotesExpiredSignature-uint256-}[`++VotesExpiredSignature(expiry)++`] [.contract-subindex-inherited] .IERC6372 [.contract-subindex-inherited] .Nonces * {xref-Nonces-InvalidAccountNonce-address-uint256-}[`++InvalidAccountNonce(account, currentNonce)++`] [.contract-subindex-inherited] .EIP712 [.contract-subindex-inherited] .IERC5267 [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721Votes-_update-address-uint256-address-]] ==== `[.contract-item-name]#++_update++#++(address to, uint256 tokenId, address auth) → address++` [.item-kind]#internal# See {ERC721-_update}. Adjusts votes when tokens are transferred. Emits a {IVotes-DelegateVotesChanged} event. [.contract-item] [[ERC721Votes-_getVotingUnits-address-]] ==== `[.contract-item-name]#++_getVotingUnits++#++(address account) → uint256++` [.item-kind]#internal# Returns the balance of `account`. WARNING: Overriding this function will likely result in incorrect vote tracking. [.contract-item] [[ERC721Votes-_increaseBalance-address-uint128-]] ==== `[.contract-item-name]#++_increaseBalance++#++(address account, uint128 amount)++` [.item-kind]#internal# See {ERC721-_increaseBalance}. We need that to account tokens that were minted in batch. :supportsInterface: pass:normal[xref:#ERC721Royalty-supportsInterface-bytes4-[`++supportsInterface++`]] :supportsInterface-bytes4: pass:normal[xref:#ERC721Royalty-supportsInterface-bytes4-[`++supportsInterface++`]] [.contract] [[ERC721Royalty]] === `++ERC721Royalty++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Royalty.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Royalty.sol"; ``` Extension of ERC-721 with the ERC-2981 NFT Royalty Standard, a standardized way to retrieve royalty payment information. Royalty information can be specified globally for all token ids via {ERC2981-_setDefaultRoyalty}, and/or individually for specific token ids via {ERC2981-_setTokenRoyalty}. The latter takes precedence over the first. IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the ERC. Marketplaces are expected to voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. [.contract-index] .Functions -- * {xref-ERC721Royalty-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] [.contract-subindex-inherited] .ERC721 * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC2981 * {xref-ERC2981-royaltyInfo-uint256-uint256-}[`++royaltyInfo(tokenId, salePrice)++`] * {xref-ERC2981-_feeDenominator--}[`++_feeDenominator()++`] * {xref-ERC2981-_setDefaultRoyalty-address-uint96-}[`++_setDefaultRoyalty(receiver, feeNumerator)++`] * {xref-ERC2981-_deleteDefaultRoyalty--}[`++_deleteDefaultRoyalty()++`] * {xref-ERC2981-_setTokenRoyalty-uint256-address-uint96-}[`++_setTokenRoyalty(tokenId, receiver, feeNumerator)++`] * {xref-ERC2981-_resetTokenRoyalty-uint256-}[`++_resetTokenRoyalty(tokenId)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC2981 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC2981 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC2981 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC2981 * {xref-ERC2981-ERC2981InvalidDefaultRoyalty-uint256-uint256-}[`++ERC2981InvalidDefaultRoyalty(numerator, denominator)++`] * {xref-ERC2981-ERC2981InvalidDefaultRoyaltyReceiver-address-}[`++ERC2981InvalidDefaultRoyaltyReceiver(receiver)++`] * {xref-ERC2981-ERC2981InvalidTokenRoyalty-uint256-uint256-uint256-}[`++ERC2981InvalidTokenRoyalty(tokenId, numerator, denominator)++`] * {xref-ERC2981-ERC2981InvalidTokenRoyaltyReceiver-uint256-address-}[`++ERC2981InvalidTokenRoyaltyReceiver(tokenId, receiver)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC2981 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721Royalty-supportsInterface-bytes4-]] ==== `[.contract-item-name]#++supportsInterface++#++(bytes4 interfaceId) → bool++` [.item-kind]#public# :ERC721UnsupportedToken: pass:normal[xref:#ERC721Wrapper-ERC721UnsupportedToken-address-[`++ERC721UnsupportedToken++`]] :constructor: pass:normal[xref:#ERC721Wrapper-constructor-contract-IERC721-[`++constructor++`]] :depositFor: pass:normal[xref:#ERC721Wrapper-depositFor-address-uint256---[`++depositFor++`]] :withdrawTo: pass:normal[xref:#ERC721Wrapper-withdrawTo-address-uint256---[`++withdrawTo++`]] :onERC721Received: pass:normal[xref:#ERC721Wrapper-onERC721Received-address-address-uint256-bytes-[`++onERC721Received++`]] :_recover: pass:normal[xref:#ERC721Wrapper-_recover-address-uint256-[`++_recover++`]] :underlying: pass:normal[xref:#ERC721Wrapper-underlying--[`++underlying++`]] :constructor-contract-IERC721: pass:normal[xref:#ERC721Wrapper-constructor-contract-IERC721-[`++constructor++`]] :depositFor-address-uint256--: pass:normal[xref:#ERC721Wrapper-depositFor-address-uint256---[`++depositFor++`]] :withdrawTo-address-uint256--: pass:normal[xref:#ERC721Wrapper-withdrawTo-address-uint256---[`++withdrawTo++`]] :onERC721Received-address-address-uint256-bytes: pass:normal[xref:#ERC721Wrapper-onERC721Received-address-address-uint256-bytes-[`++onERC721Received++`]] :_recover-address-uint256: pass:normal[xref:#ERC721Wrapper-_recover-address-uint256-[`++_recover++`]] :underlying-: pass:normal[xref:#ERC721Wrapper-underlying--[`++underlying++`]] [.contract] [[ERC721Wrapper]] === `++ERC721Wrapper++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/extensions/ERC721Wrapper.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Wrapper.sol"; ``` Extension of the ERC-721 token contract to support token wrapping. Users can deposit and withdraw an "underlying token" and receive a "wrapped token" with a matching tokenId. This is useful in conjunction with other modules. For example, combining this wrapping mechanism with {ERC721Votes} will allow the wrapping of an existing "basic" ERC-721 into a governance token. [.contract-index] .Functions -- * {xref-ERC721Wrapper-constructor-contract-IERC721-}[`++constructor(underlyingToken)++`] * {xref-ERC721Wrapper-depositFor-address-uint256---}[`++depositFor(account, tokenIds)++`] * {xref-ERC721Wrapper-withdrawTo-address-uint256---}[`++withdrawTo(account, tokenIds)++`] * {xref-ERC721Wrapper-onERC721Received-address-address-uint256-bytes-}[`++onERC721Received(, from, tokenId, )++`] * {xref-ERC721Wrapper-_recover-address-uint256-}[`++_recover(account, tokenId)++`] * {xref-ERC721Wrapper-underlying--}[`++underlying()++`] [.contract-subindex-inherited] .IERC721Receiver [.contract-subindex-inherited] .ERC721 * {xref-ERC721-supportsInterface-bytes4-}[`++supportsInterface(interfaceId)++`] * {xref-ERC721-balanceOf-address-}[`++balanceOf(owner)++`] * {xref-ERC721-ownerOf-uint256-}[`++ownerOf(tokenId)++`] * {xref-ERC721-name--}[`++name()++`] * {xref-ERC721-symbol--}[`++symbol()++`] * {xref-ERC721-tokenURI-uint256-}[`++tokenURI(tokenId)++`] * {xref-ERC721-_baseURI--}[`++_baseURI()++`] * {xref-ERC721-approve-address-uint256-}[`++approve(to, tokenId)++`] * {xref-ERC721-getApproved-uint256-}[`++getApproved(tokenId)++`] * {xref-ERC721-setApprovalForAll-address-bool-}[`++setApprovalForAll(operator, approved)++`] * {xref-ERC721-isApprovedForAll-address-address-}[`++isApprovedForAll(owner, operator)++`] * {xref-ERC721-transferFrom-address-address-uint256-}[`++transferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-}[`++safeTransferFrom(from, to, tokenId)++`] * {xref-ERC721-safeTransferFrom-address-address-uint256-bytes-}[`++safeTransferFrom(from, to, tokenId, data)++`] * {xref-ERC721-_ownerOf-uint256-}[`++_ownerOf(tokenId)++`] * {xref-ERC721-_getApproved-uint256-}[`++_getApproved(tokenId)++`] * {xref-ERC721-_isAuthorized-address-address-uint256-}[`++_isAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_checkAuthorized-address-address-uint256-}[`++_checkAuthorized(owner, spender, tokenId)++`] * {xref-ERC721-_increaseBalance-address-uint128-}[`++_increaseBalance(account, value)++`] * {xref-ERC721-_update-address-uint256-address-}[`++_update(to, tokenId, auth)++`] * {xref-ERC721-_mint-address-uint256-}[`++_mint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-}[`++_safeMint(to, tokenId)++`] * {xref-ERC721-_safeMint-address-uint256-bytes-}[`++_safeMint(to, tokenId, data)++`] * {xref-ERC721-_burn-uint256-}[`++_burn(tokenId)++`] * {xref-ERC721-_transfer-address-address-uint256-}[`++_transfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-}[`++_safeTransfer(from, to, tokenId)++`] * {xref-ERC721-_safeTransfer-address-address-uint256-bytes-}[`++_safeTransfer(from, to, tokenId, data)++`] * {xref-ERC721-_approve-address-uint256-address-}[`++_approve(to, tokenId, auth)++`] * {xref-ERC721-_approve-address-uint256-address-bool-}[`++_approve(to, tokenId, auth, emitEvent)++`] * {xref-ERC721-_setApprovalForAll-address-address-bool-}[`++_setApprovalForAll(owner, operator, approved)++`] * {xref-ERC721-_requireOwned-uint256-}[`++_requireOwned(tokenId)++`] [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Events -- [.contract-subindex-inherited] .IERC721Receiver [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 * {xref-IERC721-Transfer-address-address-uint256-}[`++Transfer(from, to, tokenId)++`] * {xref-IERC721-Approval-address-address-uint256-}[`++Approval(owner, approved, tokenId)++`] * {xref-IERC721-ApprovalForAll-address-address-bool-}[`++ApprovalForAll(owner, operator, approved)++`] [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-index] .Errors -- * {xref-ERC721Wrapper-ERC721UnsupportedToken-address-}[`++ERC721UnsupportedToken(token)++`] [.contract-subindex-inherited] .IERC721Receiver [.contract-subindex-inherited] .ERC721 [.contract-subindex-inherited] .IERC721Errors * {xref-IERC721Errors-ERC721InvalidOwner-address-}[`++ERC721InvalidOwner(owner)++`] * {xref-IERC721Errors-ERC721NonexistentToken-uint256-}[`++ERC721NonexistentToken(tokenId)++`] * {xref-IERC721Errors-ERC721IncorrectOwner-address-uint256-address-}[`++ERC721IncorrectOwner(sender, tokenId, owner)++`] * {xref-IERC721Errors-ERC721InvalidSender-address-}[`++ERC721InvalidSender(sender)++`] * {xref-IERC721Errors-ERC721InvalidReceiver-address-}[`++ERC721InvalidReceiver(receiver)++`] * {xref-IERC721Errors-ERC721InsufficientApproval-address-uint256-}[`++ERC721InsufficientApproval(operator, tokenId)++`] * {xref-IERC721Errors-ERC721InvalidApprover-address-}[`++ERC721InvalidApprover(approver)++`] * {xref-IERC721Errors-ERC721InvalidOperator-address-}[`++ERC721InvalidOperator(operator)++`] [.contract-subindex-inherited] .IERC721Metadata [.contract-subindex-inherited] .IERC721 [.contract-subindex-inherited] .ERC165 [.contract-subindex-inherited] .IERC165 -- [.contract-item] [[ERC721Wrapper-constructor-contract-IERC721-]] ==== `[.contract-item-name]#++constructor++#++(contract IERC721 underlyingToken)++` [.item-kind]#internal# [.contract-item] [[ERC721Wrapper-depositFor-address-uint256---]] ==== `[.contract-item-name]#++depositFor++#++(address account, uint256[] tokenIds) → bool++` [.item-kind]#public# Allow a user to deposit underlying tokens and mint the corresponding tokenIds. [.contract-item] [[ERC721Wrapper-withdrawTo-address-uint256---]] ==== `[.contract-item-name]#++withdrawTo++#++(address account, uint256[] tokenIds) → bool++` [.item-kind]#public# Allow a user to burn wrapped tokens and withdraw the corresponding tokenIds of the underlying tokens. [.contract-item] [[ERC721Wrapper-onERC721Received-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++onERC721Received++#++(address, address from, uint256 tokenId, bytes) → bytes4++` [.item-kind]#public# Overrides {IERC721Receiver-onERC721Received} to allow minting on direct ERC-721 transfers to this contract. In case there's data attached, it validates that the operator is this contract, so only trusted data is accepted from {depositFor}. WARNING: Doesn't work with unsafe transfers (eg. {IERC721-transferFrom}). Use {ERC721Wrapper-_recover} for recovering in that scenario. [.contract-item] [[ERC721Wrapper-_recover-address-uint256-]] ==== `[.contract-item-name]#++_recover++#++(address account, uint256 tokenId) → uint256++` [.item-kind]#internal# Mint a wrapped token to cover any underlyingToken that would have been transferred by mistake. Internal function that can be exposed with access control if desired. [.contract-item] [[ERC721Wrapper-underlying--]] ==== `[.contract-item-name]#++underlying++#++() → contract IERC721++` [.item-kind]#public# Returns the underlying token. [.contract-item] [[ERC721Wrapper-ERC721UnsupportedToken-address-]] ==== `[.contract-item-name]#++ERC721UnsupportedToken++#++(address token)++` [.item-kind]#error# The received ERC-721 token couldn't be wrapped. == Utilities :onERC721Received: pass:normal[xref:#ERC721Holder-onERC721Received-address-address-uint256-bytes-[`++onERC721Received++`]] :onERC721Received-address-address-uint256-bytes: pass:normal[xref:#ERC721Holder-onERC721Received-address-address-uint256-bytes-[`++onERC721Received++`]] [.contract] [[ERC721Holder]] === `++ERC721Holder++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/utils/ERC721Holder.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; ``` Implementation of the {IERC721Receiver} interface. Accepts all token transfers. Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}. [.contract-index] .Functions -- * {xref-ERC721Holder-onERC721Received-address-address-uint256-bytes-}[`++onERC721Received(, , , )++`] [.contract-subindex-inherited] .IERC721Receiver -- [.contract-item] [[ERC721Holder-onERC721Received-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++onERC721Received++#++(address, address, uint256, bytes) → bytes4++` [.item-kind]#public# See {IERC721Receiver-onERC721Received}. Always returns `IERC721Receiver.onERC721Received.selector`. :checkOnERC721Received: pass:normal[xref:#ERC721Utils-checkOnERC721Received-address-address-address-uint256-bytes-[`++checkOnERC721Received++`]] :checkOnERC721Received-address-address-address-uint256-bytes: pass:normal[xref:#ERC721Utils-checkOnERC721Received-address-address-address-uint256-bytes-[`++checkOnERC721Received++`]] [.contract] [[ERC721Utils]] === `++ERC721Utils++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.4.0/contracts/token/ERC721/utils/ERC721Utils.sol[{github-icon},role=heading-link] [.hljs-theme-light.nopadding] ```solidity import "@openzeppelin/contracts/token/ERC721/utils/ERC721Utils.sol"; ``` Library that provide common ERC-721 utility functions. See https://eips.ethereum.org/EIPS/eip-721[ERC-721]. _Available since v5.1._ [.contract-index] .Functions -- * {xref-ERC721Utils-checkOnERC721Received-address-address-address-uint256-bytes-}[`++checkOnERC721Received(operator, from, to, tokenId, data)++`] -- [.contract-item] [[ERC721Utils-checkOnERC721Received-address-address-address-uint256-bytes-]] ==== `[.contract-item-name]#++checkOnERC721Received++#++(address operator, address from, address to, uint256 tokenId, bytes data)++` [.item-kind]#internal# Performs an acceptance check for the provided `operator` by calling {IERC721Receiver-onERC721Received} on the `to` address. The `operator` is generally the address that initiated the token transfer (i.e. `msg.sender`). The acceptance call is not executed and treated as a no-op if the target address doesn't contain code (i.e. an EOA). Otherwise, the recipient must implement {IERC721Receiver-onERC721Received} and return the acceptance magic value to accept the transfer.