5dfe7215a9
* Initial migration to Solidity 0.6.x - v3.0 first steps (#2063) * Initial migration, missing GSN, 721, 777 and Crowdsales. * Add _beforeTokenOperation and _afterTokenOperation. * Add documentation for hooks. * Add hooks doc * Add missing drafts * Add back ERC721 with hooks * Bring back ERC777 * Notes on hooks * Bring back GSN * Make functions virtual * Make GSN overrides explicit * Fix ERC20Pausable tests * Remove virtual from some view functions * Update linter * Delete examples * Remove unnecessary virtual * Remove roles from Pausable * Remove roles * Remove users of roles * Adapt ERC20 tests * Fix ERC721 tests * Add all ERC721 hooks * Add ERC777 hooks * Fix remaining tests * Bump compiler version * Move 721BurnableMock into mocks directory * Remove _before hooks * Fix tests * Upgrade linter * Put modifiers last * Remove _beforeTokenApproval and _beforeOperatorApproval hooks
23 lines
753 B
Solidity
23 lines
753 B
Solidity
pragma solidity ^0.6.0;
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/**
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* @dev Interface of the ERC165 standard, as defined in the
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* https://eips.ethereum.org/EIPS/eip-165[EIP].
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*
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* Implementers can declare support of contract interfaces, which can then be
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* queried by others ({ERC165Checker}).
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*
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* For an implementation, see {ERC165}.
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*/
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interface IERC165 {
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/**
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* @dev Returns true if this contract implements the interface defined by
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* `interfaceId`. See the corresponding
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* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
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* to learn more about how these ids are created.
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*
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* This function call must use less than 30 000 gas.
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*/
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function supportsInterface(bytes4 interfaceId) external view returns (bool);
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}
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