UnsafePutVarUint64 writes an unsigned VarUint64 at the given offset without advancing writerIndex. Caller must have called Reserve(16) to ensure capacity (for bulk writes). Returns the number of bytes written (1-9).
(offset int, value uint64)
| 788 | // Caller must have called Reserve(16) to ensure capacity (for bulk writes). |
| 789 | // Returns the number of bytes written (1-9). |
| 790 | func (b *ByteBuffer) UnsafePutVarUint64(offset int, value uint64) int { |
| 791 | if value>>7 == 0 { |
| 792 | b.data[offset] = byte(value) |
| 793 | return 1 |
| 794 | } |
| 795 | if value>>14 == 0 { |
| 796 | encoded := uint16((value&0x7F)|0x80) | uint16(value>>7)<<8 |
| 797 | if isLittleEndian { |
| 798 | *(*uint16)(unsafe.Pointer(&b.data[offset])) = encoded |
| 799 | } else { |
| 800 | b.data[offset] = byte(encoded) |
| 801 | b.data[offset+1] = byte(encoded >> 8) |
| 802 | } |
| 803 | return 2 |
| 804 | } |
| 805 | if value>>21 == 0 { |
| 806 | encoded := uint32((value&0x7F)|0x80) | |
| 807 | uint32(((value>>7)&0x7F)|0x80)<<8 | |
| 808 | uint32(value>>14)<<16 |
| 809 | if isLittleEndian { |
| 810 | *(*uint32)(unsafe.Pointer(&b.data[offset])) = encoded |
| 811 | } else { |
| 812 | b.data[offset] = byte(encoded) |
| 813 | b.data[offset+1] = byte(encoded >> 8) |
| 814 | b.data[offset+2] = byte(encoded >> 16) |
| 815 | } |
| 816 | return 3 |
| 817 | } |
| 818 | if value>>28 == 0 { |
| 819 | encoded := uint32((value&0x7F)|0x80) | |
| 820 | uint32(((value>>7)&0x7F)|0x80)<<8 | |
| 821 | uint32(((value>>14)&0x7F)|0x80)<<16 | |
| 822 | uint32(value>>21)<<24 |
| 823 | if isLittleEndian { |
| 824 | *(*uint32)(unsafe.Pointer(&b.data[offset])) = encoded |
| 825 | } else { |
| 826 | binary.LittleEndian.PutUint32(b.data[offset:], encoded) |
| 827 | } |
| 828 | return 4 |
| 829 | } |
| 830 | if value>>35 == 0 { |
| 831 | encoded := uint64((value&0x7F)|0x80) | |
| 832 | uint64(((value>>7)&0x7F)|0x80)<<8 | |
| 833 | uint64(((value>>14)&0x7F)|0x80)<<16 | |
| 834 | uint64(((value>>21)&0x7F)|0x80)<<24 | |
| 835 | uint64(value>>28)<<32 |
| 836 | if isLittleEndian { |
| 837 | *(*uint64)(unsafe.Pointer(&b.data[offset])) = encoded |
| 838 | } else { |
| 839 | binary.LittleEndian.PutUint64(b.data[offset:], encoded) |
| 840 | } |
| 841 | return 5 |
| 842 | } |
| 843 | if value>>42 == 0 { |
| 844 | encoded := uint64((value&0x7F)|0x80) | |
| 845 | uint64(((value>>7)&0x7F)|0x80)<<8 | |
| 846 | uint64(((value>>14)&0x7F)|0x80)<<16 | |
| 847 | uint64(((value>>21)&0x7F)|0x80)<<24 | |
no test coverage detected