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一个速度奇快的 JSON 序列化/反序列化库,由 JIT (即时编译)和 SIMD (单指令流多数据流)加速。
--ldflags="-checklinkname=0" 详见 go.dev
对于所有大小的 json 和所有使用场景, Sonic 表现均为最佳。
goversion: 1.17.1
goos: darwin
goarch: amd64
cpu: Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
BenchmarkEncoder_Generic_Sonic-16 32393 ns/op 402.40 MB/s 11965 B/op 4 allocs/op
BenchmarkEncoder_Generic_Sonic_Fast-16 21668 ns/op 601.57 MB/s 10940 B/op 4 allocs/op
BenchmarkEncoder_Generic_JsonIter-16 42168 ns/op 309.12 MB/s 14345 B/op 115 allocs/op
BenchmarkEncoder_Generic_GoJson-16 65189 ns/op 199.96 MB/s 23261 B/op 16 allocs/op
BenchmarkEncoder_Generic_StdLib-16 106322 ns/op 122.60 MB/s 49136 B/op 789 allocs/op
BenchmarkEncoder_Binding_Sonic-16 6269 ns/op 2079.26 MB/s 14173 B/op 4 allocs/op
BenchmarkEncoder_Binding_Sonic_Fast-16 5281 ns/op 2468.16 MB/s 12322 B/op 4 allocs/op
BenchmarkEncoder_Binding_JsonIter-16 20056 ns/op 649.93 MB/s 9488 B/op 2 allocs/op
BenchmarkEncoder_Binding_GoJson-16 8311 ns/op 1568.32 MB/s 9481 B/op 1 allocs/op
BenchmarkEncoder_Binding_StdLib-16 16448 ns/op 792.52 MB/s 9479 B/op 1 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic-16 6681 ns/op 1950.93 MB/s 12738 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_Sonic_Fast-16 4179 ns/op 3118.99 MB/s 10757 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Generic_JsonIter-16 9861 ns/op 1321.84 MB/s 14362 B/op 115 allocs/op
BenchmarkEncoder_Parallel_Generic_GoJson-16 18850 ns/op 691.52 MB/s 23278 B/op 16 allocs/op
BenchmarkEncoder_Parallel_Generic_StdLib-16 45902 ns/op 283.97 MB/s 49174 B/op 789 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic-16 1480 ns/op 8810.09 MB/s 13049 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_Sonic_Fast-16 1209 ns/op 10785.23 MB/s 11546 B/op 4 allocs/op
BenchmarkEncoder_Parallel_Binding_JsonIter-16 6170 ns/op 2112.58 MB/s 9504 B/op 2 allocs/op
BenchmarkEncoder_Parallel_Binding_GoJson-16 3321 ns/op 3925.52 MB/s 9496 B/op 1 allocs/op
BenchmarkEncoder_Parallel_Binding_StdLib-16 3739 ns/op 3486.49 MB/s 9480 B/op 1 allocs/op
BenchmarkDecoder_Generic_Sonic-16 66812 ns/op 195.10 MB/s 57602 B/op 723 allocs/op
BenchmarkDecoder_Generic_Sonic_Fast-16 54523 ns/op 239.07 MB/s 49786 B/op 313 allocs/op
BenchmarkDecoder_Generic_StdLib-16 124260 ns/op 104.90 MB/s 50869 B/op 772 allocs/op
BenchmarkDecoder_Generic_JsonIter-16 91274 ns/op 142.81 MB/s 55782 B/op 1068 allocs/op
BenchmarkDecoder_Generic_GoJson-16 88569 ns/op 147.17 MB/s 66367 B/op 973 allocs/op
BenchmarkDecoder_Binding_Sonic-16 32557 ns/op 400.38 MB/s 28302 B/op 137 allocs/op
BenchmarkDecoder_Binding_Sonic_Fast-16 28649 ns/op 455.00 MB/s 24999 B/op 34 allocs/op
BenchmarkDecoder_Binding_StdLib-16 111437 ns/op 116.97 MB/s 10576 B/op 208 allocs/op
BenchmarkDecoder_Binding_JsonIter-16 35090 ns/op 371.48 MB/s 14673 B/op 385 allocs/op
BenchmarkDecoder_Binding_GoJson-16 28738 ns/op 453.59 MB/s 22039 B/op 49 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic-16 12321 ns/op 1057.91 MB/s 57233 B/op 723 allocs/op
BenchmarkDecoder_Parallel_Generic_Sonic_Fast-16 10644 ns/op 1224.64 MB/s 49362 B/op 313 allocs/op
BenchmarkDecoder_Parallel_Generic_StdLib-16 57587 ns/op 226.35 MB/s 50874 B/op 772 allocs/op
BenchmarkDecoder_Parallel_Generic_JsonIter-16 38666 ns/op 337.12 MB/s 55789 B/op 1068 allocs/op
BenchmarkDecoder_Parallel_Generic_GoJson-16 30259 ns/op 430.79 MB/s 66370 B/op 974 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic-16 5965 ns/op 2185.28 MB/s 27747 B/op 137 allocs/op
BenchmarkDecoder_Parallel_Binding_Sonic_Fast-16 5170 ns/op 2521.31 MB/s 24715 B/op 34 allocs/op
BenchmarkDecoder_Parallel_Binding_StdLib-16 27582 ns/op 472.58 MB/s 10576 B/op 208 allocs/op
BenchmarkDecoder_Parallel_Binding_JsonIter-16 13571 ns/op 960.51 MB/s 14685 B/op 385 allocs/op
BenchmarkDecoder_Parallel_Binding_GoJson-16 10031 ns/op 1299.51 MB/s 22111 B/op 49 allocs/op
BenchmarkGetOne_Sonic-16 3276 ns/op 3975.78 MB/s 24 B/op 1 allocs/op
BenchmarkGetOne_Gjson-16 9431 ns/op 1380.81 MB/s 0 B/op 0 allocs/op
BenchmarkGetOne_Jsoniter-16 51178 ns/op 254.46 MB/s 27936 B/op 647 allocs/op
BenchmarkGetOne_Parallel_Sonic-16 216.7 ns/op 60098.95 MB/s 24 B/op 1 allocs/op
BenchmarkGetOne_Parallel_Gjson-16 1076 ns/op 12098.62 MB/s 0 B/op 0 allocs/op
BenchmarkGetOne_Parallel_Jsoniter-16 17741 ns/op 734.06 MB/s 27945 B/op 647 allocs/op
BenchmarkSetOne_Sonic-16 9571 ns/op 1360.61 MB/s 1584 B/op 17 allocs/op
BenchmarkSetOne_Sjson-16 36456 ns/op 357.22 MB/s 52180 B/op 9 allocs/op
BenchmarkSetOne_Jsoniter-16 79475 ns/op 163.86 MB/s 45862 B/op 964 allocs/op
BenchmarkSetOne_Parallel_Sonic-16 850.9 ns/op 15305.31 MB/s 1584 B/op 17 allocs/op
BenchmarkSetOne_Parallel_Sjson-16 18194 ns/op 715.77 MB/s 52247 B/op 9 allocs/op
BenchmarkSetOne_Parallel_Jsoniter-16 33560 ns/op 388.05 MB/s 45892 B/op 964 allocs/op
BenchmarkLoadNode/LoadAll()-16 11384 ns/op 1143.93 MB/s 6307 B/op 25 allocs/op
BenchmarkLoadNode_Parallel/LoadAll()-16 5493 ns/op 2370.68 MB/s 7145 B/op 25 allocs/op
BenchmarkLoadNode/Interface()-16 17722 ns/op 734.85 MB/s 13323 B/op 88 allocs/op
BenchmarkLoadNode_Parallel/Interface()-16 10330 ns/op 1260.70 MB/s 15178 B/op 88 allocs/op
要查看基准测试代码,请参阅 bench.sh 。
默认的行为基本上与 encoding/json 相一致,除了 HTML 转义形式(参见 Escape HTML) 和 SortKeys 功能(参见 Sort Keys)没有遵循 RFC8259 。
```go import "github.com/bytedance/sonic"
var data YourSchema // Marshal output, err := sonic.Marshal(&data) // Unmarshal err := sonic.Unmarshal(output, &data) ```
Sonic 支持解码 io.Reader 中输入的 json,或将对象编码为 json 后输出至 io.Writer,以处理多个值并减少内存消耗。
var o1 = map[string]interface{}{
"a": "b",
}
var o2 = 1
var w = bytes.NewBuffer(nil)
var enc = sonic.ConfigDefault.NewEncoder(w)
enc.Encode(o1)
enc.Encode(o2)
fmt.Println(w.String())
// Output:
// {"a":"b"}
// 1
var o = map[string]interface{}{}
var r = strings.NewReader(`{"a":"b"}{"1":"2"}`)
var dec = sonic.ConfigDefault.NewDecoder(r)
dec.Decode(&o)
dec.Decode(&o)
fmt.Printf("%+v", o)
// Output:
// map[1:2 a:b]
Number / int64import "github.com/bytedance/sonic/decoder"
var input = `1`
var data interface{}
// default float64
dc := decoder.NewDecoder(input)
dc.Decode(&data) // data == float64(1)
// use json.Number
dc = decoder.NewDecoder(input)
dc.UseNumber()
dc.Decode(&data) // data == json.Number("1")
// use int64
dc = decoder.NewDecoder(input)
dc.UseInt64()
dc.Decode(&data) // data == int64(1)
root, err := sonic.GetFromString(input)
// Get json.Number
jn := root.Number()
jm := root.InterfaceUseNumber().(json.Number) // jn == jm
// Get float64
fn := root.Float64()
fm := root.Interface().(float64) // jn == jm
```
### 对键排序
考虑到排序带来的性能损失(约 10% ), sonic 默认不会启用这个功能。如果你的组件依赖这个行为(如 [zstd](https://github.com/facebook/zstd)) ,可以仿照下面的例子:
```go
import "github.com/bytedance/sonic"
import "github.com/bytedance/sonic/encoder"
// Binding map only
m := map[string]interface{}{}
v, err := encoder.Encode(m, encoder.SortMapKeys)
// Or ast.Node.SortKeys() before marshal
var root := sonic.Get(JSON)
err := root.SortKeys()
考虑到性能损失(约15%), sonic 默认不会启用这个功能。你可以使用 encoder.EscapeHTML 选项来开启(与 encoding/json.HTMLEscape 行为一致)。
import "github.com/bytedance/sonic"
v := map[string]string{"&&":"<>"}
ret, err := Encode(v, EscapeHTML) // ret == `{"\u0026\u0026":{"X":"\u003c\u003e"}}`
Sonic 默认将基本类型( struct , map 等)编码为紧凑格式的 JSON ,除非使用 json.RawMessage or json.Marshaler 进行编码: sonic 确保输出的 JSON 合法,但出于性能考虑,不会加工成紧凑格式。我们提供选项 encoder.CompactMarshaler 来添加此过程,
如果输入的 JSON 存在无效的语法,sonic 将返回 decoder.SyntaxError,该错误支持错误位置的美化输出。
import "github.com/bytedance/sonic"
import "github.com/bytedance/sonic/decoder"
var data interface{}
err := sonic.UnmarshalString("[[[}]]", &data)
if err != nil {
/* One line by default */
println(e.Error()) // "Syntax error at index 3: invalid char\n\n\t[[[}]]\n\t...^..\n"
/* Pretty print */
if e, ok := err.(decoder.SyntaxError); ok {
/*Syntax error at index 3: invalid char
[[[}]]
...^..
*/
print(e.Description())
} else if me, ok := err.(*decoder.MismatchTypeError); ok {
// decoder.MismatchTypeError is new to Sonic v1.6.0
print(me.Description())
}
}
如果给定键中存在类型不匹配的值, sonic 会抛出 decoder.MismatchTypeError (如果有多个,只会报告最后一个),但仍会跳过错误的值并解码下一个 JSON 。
import "github.com/bytedance/sonic"
import "github.com/bytedance/sonic/decoder"
var data = struct{
A int
B int
}{}
err := UnmarshalString(`{"A":"1","B":1}`, &data)
println(err.Error()) // Mismatch type int with value string "at index 5: mismatched type with value\n\n\t{\"A\":\"1\",\"B\":1}\n\t.....^.........\n"
fmt.Printf("%+v", data) // {A:0 B:1}
Ast.NodeSonic/ast.Node 是完全独立的 JSON 抽象语法树库。它实现了序列化和反序列化,并提供了获取和修改JSON数据的鲁棒的 API。
通过给定的路径搜索 JSON 片段,路径必须为非负整数,字符串或 nil 。
import "github.com/bytedance/sonic"
input := []byte(`{"key1":[{},{"key2":{"key3":[1,2,3]}}]}`)
// no path, returns entire json
root, err := sonic.Get(input)
raw := root.Raw() // == string(input)
// multiple paths
root, err := sonic.Get(input, "key1", 1, "key2")
sub := root.Get("key3").Index(2).Int64() // == 3
注意:由于 Index() 使用偏移量来定位数据,比使用扫描的 Get() 要快的多,建议尽可能的使用 Index 。 Sonic 也提供了另一个 API, IndexOrGet() ,以偏移量为基础并且也确保键的匹配。
ast.Searcher提供了一些选项,以满足用户的不同需求:
opts := ast.SearchOption{CopyReturn: true…}
val, err := sonic.GetWithOptions(JSON, opts, "key")
ast.Node使用Lazy-Load设计,默认不支持并发读取。如果您想同时读取,请指定它。使用 Set() / Unset() 修改 json 的内容
import "github.com/bytedance/sonic"
// Set
exist, err := root.Set("key4", NewBool(true)) // exist == false
alias1 := root.Get("key4")
println(alias1.Valid()) // true
alias2 := root.Index(1)
println(alias1 == alias2) // true
// Unset
exist, err := root.UnsetByIndex(1) // exist == true
println(root.Get("key4").Check()) // "value not exist"
要将 ast.Node 编码为 json ,使用 MarshalJson() 或者 json.Marshal() (必须传递指向节点的指针)
import (
"encoding/json"
"github.com/bytedance/sonic"
)
buf, err := root.MarshalJson()
println(string(buf)) // {"key1":[{},{"key2":{"key3":[1,2,3]}}]}
exp, err := json.Marshal(&root) // WARN: use pointer
println(string(buf) == string(exp)) // true
Check(), Error(), Valid(), Exist()Index(), Get(), IndexPair(), IndexOrGet(), GetByPath()Int64(), Float64(), String(), Number(), Bool(), Map[UseNumber|UseNode](), Array[UseNumber|UseNode](), Interface[UseNumber|UseNode]()NewRaw(), NewNumber(), NewNull(), `NewBool()$ claude mcp add sonic \
-- python -m otcore.mcp_server <graph>