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meta expansion size constant #22

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Merged
thedavidmeister merged 1 commit into from
Jun 9, 2024
Merged

meta expansion size constant #22

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3 changes: 3 additions & 0 deletions src/lib/parse/LibParseMeta.sol
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Expand Up @@ -16,6 +16,9 @@ uint256 constant META_ITEM_SIZE = 4;
/// collision resistance only improves, so this is still safe.
uint256 constant FINGERPRINT_MASK = 0xFFFFFF;

/// @dev 33 = 32 bytes for expansion + 1 byte for seed
uint256 constant META_EXPANSION_SIZE = 0x21;

library LibParseMeta {
function wordBitmapped(uint256 seed, bytes32 word) internal pure returns (uint256 bitmap, uint256 hashed) {
assembly ("memory-safe") {
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