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length) internal pure {\n // Copy word-length chunks while possible\n uint toPtr = pointer(self) + toOffset;\n uint fromPtr = pointer(from) + fromOffset;\n for (; length >= 32; length -= 32) {\n assembly {\n mstore(toPtr, mload(fromPtr))\n }\n toPtr += 32;\n fromPtr += 32;\n }\n\n // Copy remaining bytes\n uint mask = 256 ** (32 - length) - 1;\n assembly {\n let fromPart := and(mload(fromPtr), not(mask))\n let toPart := and(mload(toPtr), mask)\n mstore(toPtr, or(toPart, fromPart))\n }\n }\n}", "sourcePath": "/Users/yoonjae/SolidityProjects/tokenboost-solidity/contracts/utils/ByteUtils.sol", "ast": { "absolutePath": "/Users/yoonjae/SolidityProjects/tokenboost-solidity/contracts/utils/ByteUtils.sol", "exportedSymbols": { "ByteUtils": [ 2385 ] }, "id": 2386, "nodeType": "SourceUnit", "nodes": [ { "id": 2315, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:24:20" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", 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