diff options
Diffstat (limited to 'packages/contracts/src/2.0.0/utils/LibBytes')
-rw-r--r-- | packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol b/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol index c2fff5efb..01d34fa8f 100644 --- a/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol +++ b/packages/contracts/src/2.0.0/utils/LibBytes/LibBytes.sol @@ -16,7 +16,7 @@ */ -pragma solidity ^0.4.24; +pragma solidity 0.4.24; library LibBytes { @@ -115,6 +115,7 @@ library LibBytes { // Copy whole words front to back // Note: the first check is always true, // this could have been a do-while loop. + // solhint-disable-next-line no-empty-blocks for {} lt(source, sEnd) {} { mstore(dest, mload(source)) source := add(source, 32) @@ -145,6 +146,7 @@ library LibBytes { // 2**255, so they can be safely re-interpreted as signed. // Note: the first check is always true, // this could have been a do-while loop. + // solhint-disable-next-line no-empty-blocks for {} slt(dest, dEnd) {} { mstore(dEnd, mload(sEnd)) sEnd := sub(sEnd, 32) @@ -157,13 +159,17 @@ library LibBytes { } } } - + /// @dev Returns a slices from a byte array. /// @param b The byte array to take a slice from. /// @param from The starting index for the slice (inclusive). /// @param to The final index for the slice (exclusive). /// @return result The slice containing bytes at indices [from, to) - function slice(bytes memory b, uint256 from, uint256 to) + function slice( + bytes memory b, + uint256 from, + uint256 to + ) internal pure returns (bytes memory result) @@ -192,7 +198,11 @@ library LibBytes { /// @param to The final index for the slice (exclusive). /// @return result The slice containing bytes at indices [from, to) /// @dev When `from == 0`, the original array will match the slice. In other cases its state will be corrupted. - function sliceDestructive(bytes memory b, uint256 from, uint256 to) + function sliceDestructive( + bytes memory b, + uint256 from, + uint256 to + ) internal pure returns (bytes memory result) @@ -344,7 +354,10 @@ library LibBytes { // 1. Add index to address of bytes array // 2. Load 32-byte word from memory // 3. Apply 12-byte mask to obtain extra bytes occupying word of memory where we'll store the address - let neighbors := and(mload(add(b, index)), 0xffffffffffffffffffffffff0000000000000000000000000000000000000000) + let neighbors := and( + mload(add(b, index)), + 0xffffffffffffffffffffffff0000000000000000000000000000000000000000 + ) // Make sure input address is clean. // (Solidity does not guarantee this) @@ -509,7 +522,7 @@ library LibBytes { // Assert length of <b> is valid, given // length of input require( - b.length >= index + 32 /* 32 bytes to store length */ + input.length, + b.length >= index + 32 + input.length, // 32 bytes to store length "GREATER_OR_EQUAL_TO_NESTED_BYTES_LENGTH_REQUIRED" ); |