feat: fallback on unsupported go versions (#358)

* feat: fallback api on unsupported go version

* add compact test

* not support go version <= 1.14

README.md

@@ -3,7 +3,7 @@
 A blazingly fast JSON serializing & deserializing library, accelerated by JIT (just-in-time compiling) and SIMD (single-instruction-multiple-data).
 
 ## Requirement
-- Go 1.15/1.16/1.17/1.18/1.19
+- Go 1.15~1.20
 - Linux/MacOS/Windows
 - Amd64 ARCH
 

ast/api_amd64.go

@@ -1,5 +1,5 @@
-//go:build amd64
-// +build amd64
+// +build amd64,go1.15,!go1.21
+
 
 package ast
 

ast/api_amd64_test.go

@@ -1,5 +1,4 @@
-//go:build amd64
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 package ast
 

ast/api_compat.go

@@ -1,5 +1,4 @@
-//go:build !amd64
-// +build !amd64
+// +build !amd64 go1.21
 
 package ast
 

ast/stubs_go115.go

@@ -1,4 +1,4 @@
-// +build go1.15,!go1.20
+// +build !go1.20
 
 /*
  * Copyright 2021 ByteDance Inc.

compat.go

@@ -1,5 +1,4 @@
-//go:build !amd64
-// +build !amd64
+// +build !amd64 go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.
@@ -120,7 +119,6 @@ func (cfg frozenConfig) Valid(data []byte) bool {
     return json.Valid(data)
 }
 
-
 // Pretouch compiles vt ahead-of-time to avoid JIT compilation on-the-fly, in
 // order to reduce the first-hit latency at **amd64** Arch.
 // Opts are the compile options, for example, "option.WithCompileRecursiveDepth" is

compat_test.go

@@ -1,6 +1,3 @@
-//go:build !amd64
-// +build !amd64
-
 /*
  * Copyright 2022 ByteDance Inc.
  *
@@ -20,12 +17,146 @@
 package sonic
 
 import (
+    `bytes`
+    `encoding/json`
     `reflect`
     `testing`
 
     `github.com/bytedance/sonic/option`
+    `github.com/stretchr/testify/require`
 )
 
+func TestCompatUnmarshalStd(t *testing.T) {
+    var sobj = map[string]interface{}{}
+    var jobj = map[string]interface{}{}
+    var data = []byte(`{"a":1.00000001E-10}`)
+    var str = string(data)
+    serr := ConfigStd.UnmarshalFromString(str, &sobj)
+    jerr := json.Unmarshal(data, &jobj)
+    require.Equal(t, jerr, serr)
+    require.Equal(t, jobj, sobj)
+    data[2] = '0'
+    require.Equal(t, jobj, sobj)
+
+    sobj = map[string]interface{}{}
+    jobj = map[string]interface{}{}
+    data = []byte(`{"a":1}`)
+    cfg := Config{
+        UseNumber: true,
+    }.Froze()
+    serr = cfg.Unmarshal(data, &sobj)
+    dec := json.NewDecoder(bytes.NewBuffer(data))
+    dec.UseNumber()
+    jerr = dec.Decode(&jobj)
+    require.Equal(t, jerr, serr)
+    require.Equal(t, jobj, sobj)
+
+    x := struct{
+        A json.Number
+        B json.Number
+    }{}
+    y := struct{
+        A json.Number
+        B json.Number
+    }{}
+    data = []byte(`{"A":"1", "C":-1, "B":1}`)
+    cfg = Config{
+        DisallowUnknownFields: true,
+    }.Froze()
+    serr = cfg.Unmarshal(data, &x)
+    dec = json.NewDecoder(bytes.NewBuffer(data))
+    dec.UseNumber()
+    dec.DisallowUnknownFields()
+    jerr = dec.Decode(&y)
+    require.Equal(t, jerr, serr)
+    // require.Equal(t, y, x)
+}
+
+func TestCompatMarshalStd(t *testing.T) {
+    t.Parallel()
+    var obj = map[string]interface{}{
+        "c": json.RawMessage(" [ \"<&>\" ] "),
+        "b": json.RawMessage(" [ ] "),
+    }
+    sout, serr := ConfigStd.Marshal(obj)
+    jout, jerr := json.Marshal(obj)
+    require.Equal(t, jerr, serr)
+    require.Equal(t, string(jout), string(sout))
+
+    obj = map[string]interface{}{
+        "a": json.RawMessage(" [} "),
+    }
+    sout, serr = ConfigStd.Marshal(obj)
+    jout, jerr = json.Marshal(obj)
+    require.NotNil(t, jerr)
+    require.NotNil(t, serr)
+    require.Equal(t, string(jout), string(sout))
+
+    obj = map[string]interface{}{
+        "a": json.RawMessage("1"),
+    }
+    sout, serr = ConfigStd.MarshalIndent(obj, "xxxx", "  ")
+    jout, jerr = json.MarshalIndent(obj, "xxxx", "  ")
+    require.Equal(t, jerr, serr)
+    require.Equal(t, string(jout), string(sout))
+}
+
+func TestCompatEncoderStd(t *testing.T) {
+    var o = map[string]interface{}{
+        "a": "<>",
+        "b": json.RawMessage(" [ ] "),
+    }
+    var w1 = bytes.NewBuffer(nil)
+    var w2 = bytes.NewBuffer(nil)
+    var enc1 = json.NewEncoder(w1)
+    var enc2 = ConfigStd.NewEncoder(w2)
+
+    require.Nil(t, enc1.Encode(o))
+    require.Nil(t, enc2.Encode(o))
+    require.Equal(t, w1.String(), w2.String())
+
+    enc1.SetEscapeHTML(true)
+    enc2.SetEscapeHTML(true)
+    enc1.SetIndent("\n", "  ")
+    enc2.SetIndent("\n", "  ")
+    require.Nil(t, enc1.Encode(o))
+    require.Nil(t, enc2.Encode(o))
+    require.Equal(t, w1.String(), w2.String())
+
+    enc1.SetEscapeHTML(false)
+    enc2.SetEscapeHTML(false)
+    enc1.SetIndent("", "")
+    enc2.SetIndent("", "")
+    require.Nil(t, enc1.Encode(o))
+    require.Nil(t, enc2.Encode(o))
+    require.Equal(t, w1.String(), w2.String())
+}
+
+func TestCompatDecoderStd(t *testing.T) {
+    var o1 = map[string]interface{}{}
+    var o2 = map[string]interface{}{}
+    var s = `{"a":"b"} {"1":"2"} a {}`
+    var w1 = bytes.NewBuffer([]byte(s))
+    var w2 = bytes.NewBuffer([]byte(s))
+    var enc1 = json.NewDecoder(w1)
+    var enc2 = ConfigStd.NewDecoder(w2)
+
+    require.Equal(t, enc1.More(), enc2.More())
+    require.Nil(t, enc1.Decode(&o1))
+    require.Nil(t, enc2.Decode(&o2))
+    require.Equal(t, w1.String(), w2.String())
+
+    require.Equal(t, enc1.More(), enc2.More())
+    require.Nil(t, enc1.Decode(&o1))
+    require.Nil(t, enc2.Decode(&o2))
+    require.Equal(t, w1.String(), w2.String())
+
+    require.Equal(t, enc1.More(), enc2.More())
+    require.NotNil(t, enc1.Decode(&o1))
+    require.NotNil(t, enc2.Decode(&o2))
+    require.Equal(t, w1.String(), w2.String())
+}
+
 func TestPretouch(t *testing.T) {
     var v map[string]interface{}
     if err := Pretouch(reflect.TypeOf(v)); err != nil {

decode_float_test.go

@@ -1,4 +1,4 @@
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.

decode_test.go

@@ -1,5 +1,4 @@
-//go:build amd64
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.

encode_test.go

@@ -1,4 +1,4 @@
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.

external_jsonlib_test/unit_test/api_test.go

@@ -82,35 +82,6 @@ func TestCompatMarshalDefault(t *testing.T){
     require.Equal(t, string(jout), string(sout))
 }
 
-func TestCompatMarshalStd(t *testing.T) {
-    t.Parallel()
-    var obj = map[string]interface{}{
-        "c": json.RawMessage(" [ \"<&>\" ] "),
-        "b": json.RawMessage(" [ ] "),
-    }
-    sout, serr := sonic.ConfigStd.Marshal(obj)
-    jout, jerr := json.Marshal(obj)
-    require.Equal(t, jerr, serr)
-    require.Equal(t, string(jout), string(sout))
-
-    obj = map[string]interface{}{
-        "a": json.RawMessage(" [} "),
-    }
-    sout, serr = sonic.ConfigStd.Marshal(obj)
-    jout, jerr = json.Marshal(obj)
-    require.NotNil(t, jerr)
-    require.NotNil(t, serr)
-    require.Equal(t, string(jout), string(sout))
-
-    obj = map[string]interface{}{
-        "a": json.RawMessage("1"),
-    }
-    sout, serr = sonic.ConfigStd.MarshalIndent(obj, "xxxx", "  ")
-    jout, jerr = json.MarshalIndent(obj, "xxxx", "  ")
-    require.Equal(t, jerr, serr)
-    require.Equal(t, string(jout), string(sout))
-}
-
 func TestCompatUnmarshalDefault(t *testing.T) {
     var sobj = map[string]interface{}{}
     var jobj = map[string]interface{}{}
@@ -130,52 +101,6 @@ func TestCompatUnmarshalDefault(t *testing.T) {
     require.Equal(t, y, x)
 }
 
-func TestCompatUnmarshalStd(t *testing.T) {
-    var sobj = map[string]interface{}{}
-    var jobj = map[string]interface{}{}
-    var data = []byte(`{"a":1.00000001E-10}`)
-    var str = string(data)
-    serr := sonic.ConfigStd.UnmarshalFromString(str, &sobj)
-    jerr := json.Unmarshal(data, &jobj)
-    require.Equal(t, jerr, serr)
-    require.Equal(t, jobj, sobj)
-    data[2] = '0'
-    require.Equal(t, jobj, sobj)
-
-    sobj = map[string]interface{}{}
-    jobj = map[string]interface{}{}
-    data = []byte(`{"a":1}`)
-    cfg := sonic.Config{
-        UseNumber: true,
-    }.Froze()
-    serr = cfg.Unmarshal(data, &sobj)
-    dec := json.NewDecoder(bytes.NewBuffer(data))
-    dec.UseNumber()
-    jerr = dec.Decode(&jobj)
-    require.Equal(t, jerr, serr)
-    require.Equal(t, jobj, sobj)
-
-    x := struct{
-        A json.Number
-        B json.Number
-    }{}
-    y := struct{
-        A json.Number
-        B json.Number
-    }{}
-    data = []byte(`{"A":"1", "C":-1, "B":1}`)
-    cfg = sonic.Config{
-        DisallowUnknownFields: true,
-    }.Froze()
-    serr = cfg.Unmarshal(data, &x)
-    dec = json.NewDecoder(bytes.NewBuffer(data))
-    dec.UseNumber()
-    dec.DisallowUnknownFields()
-    jerr = dec.Decode(&y)
-    require.Equal(t, jerr, serr)
-    // require.Equal(t, y, x)
-}
-
 func TestCompatEncoderDefault(t *testing.T) {
     var o = map[string]interface{}{
         "a": "<>",
@@ -207,62 +132,6 @@ func TestCompatEncoderDefault(t *testing.T) {
     require.Equal(t, w1.String(), w2.String())
 }
 
-func TestCompatEncoderStd(t *testing.T) {
-    var o = map[string]interface{}{
-        "a": "<>",
-        "b": json.RawMessage(" [ ] "),
-    }
-    var w1 = bytes.NewBuffer(nil)
-    var w2 = bytes.NewBuffer(nil)
-    var enc1 = json.NewEncoder(w1)
-    var enc2 = sonic.ConfigStd.NewEncoder(w2)
-
-    require.Nil(t, enc1.Encode(o))
-    require.Nil(t, enc2.Encode(o))
-    require.Equal(t, w1.String(), w2.String())
-
-    enc1.SetEscapeHTML(true)
-    enc2.SetEscapeHTML(true)
-    enc1.SetIndent("\n", "  ")
-    enc2.SetIndent("\n", "  ")
-    require.Nil(t, enc1.Encode(o))
-    require.Nil(t, enc2.Encode(o))
-    require.Equal(t, w1.String(), w2.String())
-
-    enc1.SetEscapeHTML(false)
-    enc2.SetEscapeHTML(false)
-    enc1.SetIndent("", "")
-    enc2.SetIndent("", "")
-    require.Nil(t, enc1.Encode(o))
-    require.Nil(t, enc2.Encode(o))
-    require.Equal(t, w1.String(), w2.String())
-}
-
-func TestCompatDecoderStd(t *testing.T) {
-    var o1 = map[string]interface{}{}
-    var o2 = map[string]interface{}{}
-    var s = `{"a":"b"} {"1":"2"} a {}`
-    var w1 = bytes.NewBuffer([]byte(s))
-    var w2 = bytes.NewBuffer([]byte(s))
-    var enc1 = json.NewDecoder(w1)
-    var enc2 = sonic.ConfigStd.NewDecoder(w2)
-
-    require.Equal(t, enc1.More(), enc2.More())
-    require.Nil(t, enc1.Decode(&o1))
-    require.Nil(t, enc2.Decode(&o2))
-    require.Equal(t, w1.String(), w2.String())
-
-    require.Equal(t, enc1.More(), enc2.More())
-    require.Nil(t, enc1.Decode(&o1))
-    require.Nil(t, enc2.Decode(&o2))
-    require.Equal(t, w1.String(), w2.String())
-
-    require.Equal(t, enc1.More(), enc2.More())
-    require.NotNil(t, enc1.Decode(&o1))
-    require.NotNil(t, enc2.Decode(&o2))
-    require.Equal(t, w1.String(), w2.String())
-}
-
 func TestCompatDecoderDefault(t *testing.T) {
     var o1 = map[string]interface{}{}
     var o2 = map[string]interface{}{}

search_test.go

@@ -1,4 +1,4 @@
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.

sonic.go

@@ -1,4 +1,4 @@
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.

use_number_test.go

@@ -1,4 +1,4 @@
-// +build amd64
+// +build amd64,go1.15,!go1.21
 
 /*
  * Copyright 2021 ByteDance Inc.