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Fix ERC777 hook docs, fixes #2256

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Nicolás Venturo
2020-06-01 13:17:15 -03:00
parent df4b317fb3
commit 394987f365
1 changed files with 5 additions and 5 deletions
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10
contracts/token/ERC777/ERC777.sol
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@ -491,13 +491,13 @@ contract ERC777 is Context, IERC777, IERC20 {
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - when `from` is zero, `tokenId` will be minted for `to`.
* - when `to` is zero, ``from``'s `tokenId` will be burned.
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address operator, address from, address to, uint256 tokenId) internal virtual { }
function _beforeTokenTransfer(address operator, address from, address to, uint256 amount) internal virtual { }
}