hashBytes function

HashResult hashBytes(List<int> bytes, { bool? isBinary, })

Computes hash values for the given bytes.

If isBinary is true, or if isBinary is null and isBinaryContent detects a NUL byte, it falls back to raw hashing only where the normalized hash matches the raw hash.

Otherwise, it attempts to decode the bytes as UTF-8. If decoding succeeds, it normalizes the line endings (CRLF and lone CR to LF) and computes the normalized hash. If decoding fails, it returns InvalidUtf8Result.

Implementation

HashResult hashBytes(List<int> bytes, {bool? isBinary}) {
  final bool binary = isBinary ?? isBinaryContent(bytes);
  final String rawHash = computeRawHash(bytes);

  if (binary) {
    return SuccessfulHash(
      rawHash: rawHash,
      normalizedHash: rawHash,
      isBinary: true,
    );
  }

  try {
    final String decoded = utf8.decode(bytes);
    final String normalized = normalizeLineEndings(decoded);
    final String normalizedHash = computeRawHash(utf8.encode(normalized));
    return SuccessfulHash(
      rawHash: rawHash,
      normalizedHash: normalizedHash,
      isBinary: false,
    );
  } on FormatException catch (e) {
    return InvalidUtf8Result(message: e.message, bytes: bytes);
  }
}