mirror of
https://github.com/Mrs4s/MiraiGo.git
synced 2025-05-04 02:57:40 +08:00
120 lines
2.2 KiB
Go
120 lines
2.2 KiB
Go
package proto
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"math"
|
|
"sort"
|
|
)
|
|
|
|
type DynamicMessage map[uint64]any
|
|
|
|
// zigzag encoding types
|
|
type (
|
|
SInt int
|
|
SInt32 int32
|
|
SInt64 int64
|
|
)
|
|
|
|
type encoder struct {
|
|
buf []byte
|
|
}
|
|
|
|
func (msg DynamicMessage) Encode() []byte {
|
|
en := encoder{}
|
|
|
|
// sort all items
|
|
type pair struct {
|
|
key uint64
|
|
value any
|
|
}
|
|
all := make([]pair, len(msg))
|
|
for k, v := range msg {
|
|
all = append(all, pair{key: k, value: v})
|
|
}
|
|
sort.Slice(all, func(i, j int) bool {
|
|
return all[i].key < all[j].key
|
|
})
|
|
|
|
//nolint:staticcheck
|
|
for _, item := range all {
|
|
key := item.key << 3
|
|
switch v := item.value.(type) {
|
|
case bool:
|
|
en.uvarint(key | 0)
|
|
vi := uint64(0)
|
|
if v {
|
|
vi = 1
|
|
}
|
|
en.uvarint(vi)
|
|
case int:
|
|
en.uvarint(key | 0)
|
|
en.uvarint(uint64(v))
|
|
case uint:
|
|
en.uvarint(key | 0)
|
|
en.uvarint(uint64(v))
|
|
case int32:
|
|
en.uvarint(key | 0)
|
|
en.uvarint(uint64(v))
|
|
case int64:
|
|
en.uvarint(key | 0)
|
|
en.uvarint(uint64(v))
|
|
case uint32:
|
|
en.uvarint(key | 0)
|
|
en.uvarint(uint64(v))
|
|
case uint64:
|
|
en.uvarint(key | 0)
|
|
en.uvarint(v)
|
|
case SInt:
|
|
en.uvarint(key | 0)
|
|
en.svarint(int64(v))
|
|
case SInt32:
|
|
en.uvarint(key | 0)
|
|
en.svarint(int64(v))
|
|
case SInt64:
|
|
en.uvarint(key | 0)
|
|
en.svarint(int64(v))
|
|
case float32:
|
|
en.uvarint(key | 5)
|
|
en.u32(math.Float32bits(v))
|
|
case float64:
|
|
en.uvarint(key | 1)
|
|
en.u64(math.Float64bits(v))
|
|
case string:
|
|
en.uvarint(key | 2)
|
|
en.uvarint(uint64(len(v)))
|
|
en.buf = append(en.buf, v...)
|
|
case []uint64:
|
|
for i := 0; i < len(v); i++ {
|
|
en.uvarint(key | 0)
|
|
en.uvarint(v[i])
|
|
}
|
|
case []byte:
|
|
en.uvarint(key | 2)
|
|
en.uvarint(uint64(len(v)))
|
|
en.buf = append(en.buf, v...)
|
|
case DynamicMessage:
|
|
en.uvarint(key | 2)
|
|
b := v.Encode()
|
|
en.uvarint(uint64(len(b)))
|
|
en.buf = append(en.buf, b...)
|
|
}
|
|
}
|
|
return en.buf
|
|
}
|
|
|
|
func (en *encoder) uvarint(v uint64) {
|
|
en.buf = binary.AppendUvarint(en.buf, v)
|
|
}
|
|
|
|
func (en *encoder) svarint(v int64) {
|
|
en.buf = binary.AppendVarint(en.buf, v)
|
|
}
|
|
|
|
func (en *encoder) u32(v uint32) {
|
|
en.buf = binary.LittleEndian.AppendUint32(en.buf, v)
|
|
}
|
|
|
|
func (en *encoder) u64(v uint64) {
|
|
en.buf = binary.LittleEndian.AppendUint64(en.buf, v)
|
|
}
|