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69 lines
1.8 KiB
69 lines
1.8 KiB
pragma solidity ^0.4.24;
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import "../../introspection/IERC165.sol";
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/**
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* https://github.com/ethereum/EIPs/blob/master/EIPS/eip-214.md#specification
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* > Any attempts to make state-changing operations inside an execution instance with STATIC set to true will instead throw an exception.
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* > These operations include [...], LOG0, LOG1, LOG2, [...]
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*
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* therefore, because this contract is staticcall'd we need to not emit events (which is how solidity-coverage works)
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* solidity-coverage ignores the /mocks folder, so we duplicate its implementation here to avoid instrumenting it
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*/
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contract SupportsInterfaceWithLookupMock is IERC165 {
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bytes4 public constant InterfaceId_ERC165 = 0x01ffc9a7;
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/**
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* 0x01ffc9a7 ===
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* bytes4(keccak256('supportsInterface(bytes4)'))
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*/
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/**
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* @dev a mapping of interface id to whether or not it's supported
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*/
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mapping(bytes4 => bool) internal supportedInterfaces;
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/**
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* @dev A contract implementing SupportsInterfaceWithLookup
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* implement ERC165 itself
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*/
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constructor()
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public
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{
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_registerInterface(InterfaceId_ERC165);
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}
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/**
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* @dev implement supportsInterface(bytes4) using a lookup table
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*/
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function supportsInterface(bytes4 interfaceId)
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external
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view
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returns (bool)
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{
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return supportedInterfaces[interfaceId];
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}
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/**
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* @dev private method for registering an interface
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*/
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function _registerInterface(bytes4 interfaceId)
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internal
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{
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require(interfaceId != 0xffffffff);
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supportedInterfaces[interfaceId] = true;
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}
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}
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contract ERC165InterfacesSupported is SupportsInterfaceWithLookupMock {
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constructor (bytes4[] interfaceIds)
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public
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{
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for (uint256 i = 0; i < interfaceIds.length; i++) {
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_registerInterface(interfaceIds[i]);
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}
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}
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}
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