| 666 | } |
| 667 | |
| 668 | inline void Variant::swap(Variant& other) noexcept { |
| 669 | if (is_empty()) { |
| 670 | if (other.IsInlineValue()) { |
| 671 | value_.ResetMemory(); |
| 672 | value_.inline_value = std::move(other.value_.inline_value); |
| 673 | other.value_.ResetMemory(); |
| 674 | other.value_.heap_value = HeapValue(); |
| 675 | is_inline_ = true; |
| 676 | other.is_inline_ = false; |
| 677 | } else { |
| 678 | value_.ResetMemory(); |
| 679 | value_.heap_value = std::move(other.value_.heap_value); |
| 680 | other.value_.ResetMemory(); |
| 681 | other.value_.heap_value = HeapValue(); |
| 682 | is_inline_ = false; |
| 683 | other.is_inline_ = false; |
| 684 | } |
| 685 | } else if (other.is_empty()) { |
| 686 | if (IsInlineValue()) { |
| 687 | other.value_.ResetMemory(); |
| 688 | other.value_.inline_value = std::move(value_.inline_value); |
| 689 | value_.ResetMemory(); |
| 690 | value_.heap_value = HeapValue(); |
| 691 | other.is_inline_ = true; |
| 692 | is_inline_ = false; |
| 693 | } else { |
| 694 | other.value_.ResetMemory(); |
| 695 | other.value_.heap_value = std::move(value_.heap_value); |
| 696 | value_.ResetMemory(); |
| 697 | value_.heap_value = HeapValue(); |
| 698 | other.is_inline_ = false; |
| 699 | is_inline_ = false; |
| 700 | } |
| 701 | } else { // Both Variants have values. |
| 702 | if (other.IsInlineValue() && IsInlineValue()) { |
| 703 | std::swap(value_.inline_value, other.value_.inline_value); |
| 704 | } else if (!other.IsInlineValue() && !IsInlineValue()) { |
| 705 | std::swap(value_.heap_value, other.value_.heap_value); |
| 706 | } else if (other.IsInlineValue() && !IsInlineValue()) { |
| 707 | HeapValue v = std::move(value_.heap_value); |
| 708 | value_.ResetMemory(); |
| 709 | value_.inline_value = std::move(other.value_.inline_value); |
| 710 | other.value_.ResetMemory(); |
| 711 | other.value_.heap_value = std::move(v); |
| 712 | is_inline_ = true; |
| 713 | other.is_inline_ = false; |
| 714 | } else { // !other.IsInlineValue() && IsInlineValue() |
| 715 | HeapValue v = std::move(other.value_.heap_value); |
| 716 | other.value_.ResetMemory(); |
| 717 | other.value_.inline_value = std::move(value_.inline_value); |
| 718 | value_.ResetMemory(); |
| 719 | value_.heap_value = std::move(v); |
| 720 | is_inline_ = false; |
| 721 | other.is_inline_ = true; |
| 722 | } |
| 723 | } |
| 724 | } |
| 725 | |