reflect string

jsoniter_reflect.go

@@ -0,0 +1,53 @@
+package jsoniter
+
+import (
+	"reflect"
+	"errors"
+)
+
+type Decoder interface {
+	decode(iter *Iterator, obj interface{})
+}
+
+type stringDecoder struct {
+}
+
+func (decoder *stringDecoder) decode(iter *Iterator, obj interface{}) {
+	ptr := obj.(*string)
+	*ptr = iter.ReadString()
+}
+
+var DECODER_STRING *stringDecoder
+
+func init() {
+	DECODER_STRING = &stringDecoder{}
+}
+
+func (iter *Iterator) Read(obj interface{}) {
+	type_ := reflect.TypeOf(obj)
+	decoder, err := decoderOfType(type_)
+	if err != nil {
+		iter.Error = err
+		return
+	}
+	decoder.decode(iter, obj)
+}
+
+func decoderOfType(type_ reflect.Type) (Decoder, error) {
+	switch type_.Kind() {
+	case reflect.Ptr:
+		return decoderOfPtr(type_.Elem())
+	default:
+		return nil, errors.New("expect ptr")
+	}
+}
+
+func decoderOfPtr(type_ reflect.Type) (Decoder, error) {
+	switch type_.Kind() {
+	case reflect.String:
+		return DECODER_STRING, nil
+	default:
+		return nil, errors.New("expect string")
+	}
+}
+

jsoniter_reflect_test.go

@@ -0,0 +1,14 @@
+package jsoniter
+
+import (
+	"testing"
+)
+
+func Test_reflect_str(t *testing.T) {
+	iter := ParseString(`"hello"`)
+	str := ""
+	iter.Read(&str)
+	if str != "hello" {
+		t.FailNow()
+	}
+}