Method ReadTaggedUint64

go/fory/buffer.go:1137–1166

ReadTaggedUint64 reads uint64 using tagged encoding. If bit 0 is 0, return value >> 1. Otherwise, skip flag byte and read 8 bytes as uint64.

(err *Error)

// If bit 0 is 0, return value >> 1.
// Otherwise, skip flag byte and read 8 bytes as uint64.
func (b *ByteBuffer) ReadTaggedUint64(err *Error) uint64 {
	if b.readerIndex+4 > len(b.data) {
		if !b.fill(4, err) {
			return 0
		}
	}
	var i uint32
	if isLittleEndian {
		i = *(*uint32)(unsafe.Pointer(&b.data[b.readerIndex]))
	} else {
		i = binary.LittleEndian.Uint32(b.data[b.readerIndex:])
	}
	if (i & 0b1) != 0b1 {
		b.readerIndex += 4
		return uint64(i >> 1)
	}
	if b.readerIndex+9 > len(b.data) {
		if !b.fill(9, err) {
			return 0
		}
	}
	var value uint64
	if isLittleEndian {
		value = *(*uint64)(unsafe.Pointer(&b.data[b.readerIndex+1]))
	} else {
		value = binary.LittleEndian.Uint64(b.data[b.readerIndex+1:])
	}
	b.readerIndex += 9
	return value
}

// ReadVarUint64 reads unsigned varint
func (b *ByteBuffer) ReadVarUint64(err *Error) uint64 {