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
18 lines
647 B
Solidity
18 lines
647 B
Solidity
pragma solidity ^0.6.0;
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/**
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* @dev Interface for an ERC1820 implementer, as defined in the
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* https://eips.ethereum.org/EIPS/eip-1820#interface-implementation-erc1820implementerinterface[EIP].
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* Used by contracts that will be registered as implementers in the
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* {IERC1820Registry}.
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*/
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interface IERC1820Implementer {
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/**
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* @dev Returns a special value (`ERC1820_ACCEPT_MAGIC`) if this contract
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* implements `interfaceHash` for `account`.
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*
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* See {IERC1820Registry-setInterfaceImplementer}.
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*/
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function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) external view returns (bytes32);
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}
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