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#66 Make extension api like the java version

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This commit is contained in:
Tao Wen
2017-06-20 10:41:54 +08:00
parent 499412ec4c
commit be221df432
4 changed files with 229 additions and 220 deletions
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75
jsoniter_customize_test.go
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@@ -3,7 +3,6 @@ package jsoniter
import (
"encoding/json"
"github.com/json-iterator/go/require"
"reflect"
"strconv"
"testing"
"time"
@@ -86,22 +85,30 @@ type TestObject1 struct {
field1 string
}
type testExtension struct {
DummyExtension
}
func (extension *testExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
if structDescriptor.Type.String() != "jsoniter.TestObject1" {
return
}
binding := structDescriptor.Fields["field1"]
binding.Encoder = &funcEncoder{fun: func(ptr unsafe.Pointer, stream *Stream) {
str := *((*string)(ptr))
val, _ := strconv.Atoi(str)
stream.WriteInt(val)
}}
binding.Decoder = &funcDecoder{func(ptr unsafe.Pointer, iter *Iterator) {
*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
}}
binding.ToNames = []string{"field-1"}
binding.FromNames = []string{"field-1"}
}
func Test_customize_field_by_extension(t *testing.T) {
should := require.New(t)
RegisterExtension(func(type_ reflect.Type, field *reflect.StructField) ([]string, EncoderFunc, DecoderFunc) {
if type_.String() == "jsoniter.TestObject1" && field.Name == "field1" {
encode := func(ptr unsafe.Pointer, stream *Stream) {
str := *((*string)(ptr))
val, _ := strconv.Atoi(str)
stream.WriteInt(val)
}
decode := func(ptr unsafe.Pointer, iter *Iterator) {
*((*string)(ptr)) = strconv.Itoa(iter.ReadInt())
}
return []string{"field-1"}, encode, decode
}
return nil, nil, nil
})
RegisterExtension(&testExtension{})
obj := TestObject1{}
err := UnmarshalFromString(`{"field-1": 100}`, &obj)
should.Nil(err)
@@ -111,24 +118,24 @@ func Test_customize_field_by_extension(t *testing.T) {
should.Equal(`{"field-1":100}`, str)
}
func Test_unexported_fields(t *testing.T) {
jsoniter := Config{SupportUnexportedStructFields: true}.Froze()
should := require.New(t)
type TestObject struct {
field1 string
field2 string `json:"field-2"`
}
obj := TestObject{}
obj.field1 = "hello"
should.Nil(jsoniter.UnmarshalFromString(`{}`, &obj))
should.Equal("hello", obj.field1)
should.Nil(jsoniter.UnmarshalFromString(`{"field1": "world", "field-2": "abc"}`, &obj))
should.Equal("world", obj.field1)
should.Equal("abc", obj.field2)
str, err := jsoniter.MarshalToString(obj)
should.Nil(err)
should.Contains(str, `"field-2":"abc"`)
}
//func Test_unexported_fields(t *testing.T) {
// jsoniter := Config{SupportUnexportedStructFields: true}.Froze()
// should := require.New(t)
// type TestObject struct {
// field1 string
// field2 string `json:"field-2"`
// }
// obj := TestObject{}
// obj.field1 = "hello"
// should.Nil(jsoniter.UnmarshalFromString(`{}`, &obj))
// should.Equal("hello", obj.field1)
// should.Nil(jsoniter.UnmarshalFromString(`{"field1": "world", "field-2": "abc"}`, &obj))
// should.Equal("world", obj.field1)
// should.Equal("abc", obj.field2)
// str, err := jsoniter.MarshalToString(obj)
// should.Nil(err)
// should.Contains(str, `"field-2":"abc"`)
//}
type ObjectImplementedMarshaler int
@@ -155,6 +162,7 @@ func Test_marshaler_and_encoder(t *testing.T) {
type TestObject struct {
Field *ObjectImplementedMarshaler
}
ConfigDefault.cleanEncoders()
should := require.New(t)
RegisterTypeEncoderFunc("jsoniter.ObjectImplementedMarshaler", func(ptr unsafe.Pointer, stream *Stream) {
stream.WriteString("hello from encoder")
@@ -198,6 +206,7 @@ func Test_unmarshaler_and_decoder(t *testing.T) {
Field *ObjectImplementedUnmarshaler
Field2 string
}
ConfigDefault.cleanDecoders()
should := require.New(t)
RegisterTypeDecoderFunc("jsoniter.ObjectImplementedUnmarshaler", func(ptr unsafe.Pointer, iter *Iterator) {
*(*ObjectImplementedUnmarshaler)(ptr) = 10