| 434 | } |
| 435 | |
| 436 | void ByteString::RemoveSuffix(size_t n) { |
| 437 | ABSL_DCHECK_LE(n, size()); |
| 438 | if (n == 0) { |
| 439 | return; |
| 440 | } |
| 441 | switch (GetKind()) { |
| 442 | case ByteStringKind::kSmall: |
| 443 | rep_.small.size -= n; |
| 444 | break; |
| 445 | case ByteStringKind::kMedium: |
| 446 | rep_.medium.size -= n; |
| 447 | if (rep_.medium.size <= kSmallByteStringCapacity) { |
| 448 | const auto* refcount = GetMediumReferenceCount(); |
| 449 | SetSmall(GetMediumArena(), GetMedium()); |
| 450 | StrongUnref(refcount); |
| 451 | } |
| 452 | break; |
| 453 | case ByteStringKind::kLarge: { |
| 454 | auto& large = GetLarge(); |
| 455 | const auto large_size = large.size(); |
| 456 | const auto new_large_pos = 0; |
| 457 | const auto new_large_size = large_size - n; |
| 458 | large = large.Subcord(new_large_pos, new_large_size); |
| 459 | if (new_large_size <= kSmallByteStringCapacity) { |
| 460 | auto large_copy = std::move(large); |
| 461 | DestroyLarge(); |
| 462 | SetSmall(nullptr, large_copy); |
| 463 | } |
| 464 | } break; |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | void ByteString::CopyToArray(char* absl_nonnull out) const { |
| 469 | ABSL_DCHECK(out != nullptr); |