mirror of
https://github.com/Mrs4s/MiraiGo.git
synced 2025-05-04 11:07:40 +08:00
21ff14fd5c
name old time/op new time/op delta encoder_svarint/short-8 7.12ns ± 2% 6.24ns ± 2% -12.36% (p=0.000 n=10+9) encoder_svarint/medium-8 8.86ns ± 3% 7.82ns ± 2% -11.76% (p=0.000 n=10+10) encoder_svarint/large-8 12.2ns ± 1% 11.4ns ± 2% -5.99% (p=0.000 n=10+10) BTW, (*encoder).u32 and (*encoder).u64 can be inlined with go1.18
89 lines
1.6 KiB
Go
89 lines
1.6 KiB
Go
package binary
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import (
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"bytes"
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"encoding/binary"
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"math"
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)
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type DynamicProtoMessage map[uint64]interface{}
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type encoder struct {
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bytes.Buffer
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}
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func (msg DynamicProtoMessage) Encode() []byte {
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en := &encoder{}
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for id, value := range msg {
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key := id << 3
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switch v := value.(type) {
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case bool:
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en.uvarint(key | 0)
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vi := uint64(0)
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if v {
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vi = 1
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}
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en.uvarint(vi)
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case int:
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en.uvarint(key | 0)
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en.svarint(int64(v))
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case int32:
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en.uvarint(key | 0)
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en.svarint(int64(v))
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case int64:
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en.uvarint(key | 0)
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en.svarint(v)
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case uint32:
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en.uvarint(key | 0)
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en.uvarint(uint64(v))
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case uint64:
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en.uvarint(key | 0)
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en.uvarint(v)
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case float32:
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en.uvarint(key | 5)
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en.u32(math.Float32bits(v))
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case float64:
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en.uvarint(key | 1)
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en.u64(math.Float64bits(v))
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case string:
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en.uvarint(key | 2)
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b := []byte(v)
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en.uvarint(uint64(len(b)))
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_, _ = en.Write(b)
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case []uint64:
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for i := 0; i < len(v); i++ {
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en.uvarint(key | 0)
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en.uvarint(v[i])
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}
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case DynamicProtoMessage:
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en.uvarint(key | 2)
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b := v.Encode()
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en.uvarint(uint64(len(b)))
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_, _ = en.Write(b)
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}
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}
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return en.Bytes()
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}
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func (en *encoder) uvarint(v uint64) {
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var b [binary.MaxVarintLen64]byte
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n := binary.PutUvarint(b[:], v)
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_, _ = en.Write(b[:n])
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}
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func (en *encoder) svarint(v int64) {
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en.uvarint(uint64(v)<<1 ^ uint64(v>>63))
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}
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func (en *encoder) u32(v uint32) {
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var b [8]byte
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binary.LittleEndian.PutUint32(b[:], v)
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_, _ = en.Write(b[:])
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}
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func (en *encoder) u64(v uint64) {
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var b [8]byte
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binary.LittleEndian.PutUint64(b[:], v)
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_, _ = en.Write(b[:])
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}
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