NoBey/openzeppelin-contracts
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Replace error strings with custom errors (#4261)

Browse Source
This commit is contained in:
Francisco Giordano
2023-06-06 01:08:31 -03:00
parent 253bfa68c2
commit 99a4cfca17
133 changed files with 3157 additions and 1204 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
contracts/utils/Strings.sol
View File

@ -13,6 +13,11 @@ library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev The `value` string doesn't fit in the specified `length`.
*/
error StringsInsufficientHexLength(uint256 value, uint256 length);
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
@ -58,14 +63,17 @@ library Strings {
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
uint256 localValue = value;
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
buffer[i] = _SYMBOLS[localValue & 0xf];
localValue >>= 4;
}
if (localValue != 0) {
revert StringsInsufficientHexLength(value, length);
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}