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Always skip unexported fields when encoding

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Skip creating encoders for unexported fields. They are not participating
in JSON marshaling anyway. This allows using unexported fields of
non-marshalable types in structs.

As a side-effect of this change it's no longer possible to marshal
unexported JSON fields by adding a custom type extenstion. It seems this
is desired behavior since it matches standard library and jsoniter
already disallows `json:"-"` fields from participating in custom
extensions.

Fixes #174.
This commit is contained in:
Oleg Shaldybin
2017-09-18 10:52:01 -07:00
parent 6ed27152e0
commit 1f58120d43
3 changed files with 60 additions and 4 deletions
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9
jsoniter_customize_test.go
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@ -2,11 +2,12 @@ package jsoniter
import (
"encoding/json"
"github.com/stretchr/testify/require"
"strconv"
"testing"
"time"
"unsafe"
"github.com/stretchr/testify/require"
)
func Test_customize_type_decoder(t *testing.T) {
@ -82,7 +83,7 @@ func Test_customize_field_decoder(t *testing.T) {
}
type TestObject1 struct {
field1 string
Field1 string
}
type testExtension struct {
@ -93,7 +94,7 @@ func (extension *testExtension) UpdateStructDescriptor(structDescriptor *StructD
if structDescriptor.Type.String() != "jsoniter.TestObject1" {
return
}
binding := structDescriptor.GetField("field1")
binding := structDescriptor.GetField("Field1")
binding.Encoder = &funcEncoder{fun: func(ptr unsafe.Pointer, stream *Stream) {
str := *((*string)(ptr))
val, _ := strconv.Atoi(str)
@ -112,7 +113,7 @@ func Test_customize_field_by_extension(t *testing.T) {
obj := TestObject1{}
err := UnmarshalFromString(`{"field-1": 100}`, &obj)
should.Nil(err)
should.Equal("100", obj.field1)
should.Equal("100", obj.Field1)
str, err := MarshalToString(obj)
should.Nil(err)
should.Equal(`{"field-1":100}`, str)