28 lines
1.1 KiB
Solidity
28 lines
1.1 KiB
Solidity
pragma solidity ^0.5.0;
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/*
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* @dev Provides information about the current execution context, including the
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* sender of the transaction and its data. While these are generally available
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* via msg.sender and msg.data, they should not be accessed in such a direct
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* manner, since when dealing with GSN meta-transactions the account sending and
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* paying for execution may not be the actual sender (as far as an application
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* is concerned).
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*
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* This contract is only required for intermediate, library-like contracts.
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*/
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contract Context {
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// Empty internal constructor, to prevent people from mistakenly deploying
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// an instance of this contract, which should be used via inheritance.
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constructor () internal { }
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// solhint-disable-previous-line no-empty-blocks
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function _msgSender() internal view returns (address) {
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return msg.sender;
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}
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function _msgData() internal view returns (bytes memory) {
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this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
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return msg.data;
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}
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}
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