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|
package msgpack
import (
"reflect"
"sort"
"github.com/vmihailenco/msgpack/codes"
)
func encodeMapValue(e *Encoder, v reflect.Value) error {
if v.IsNil() {
return e.EncodeNil()
}
if err := e.EncodeMapLen(v.Len()); err != nil {
return err
}
for _, key := range v.MapKeys() {
if err := e.EncodeValue(key); err != nil {
return err
}
if err := e.EncodeValue(v.MapIndex(key)); err != nil {
return err
}
}
return nil
}
func encodeMapStringStringValue(e *Encoder, v reflect.Value) error {
if v.IsNil() {
return e.EncodeNil()
}
if err := e.EncodeMapLen(v.Len()); err != nil {
return err
}
m := v.Convert(mapStringStringType).Interface().(map[string]string)
if e.sortMapKeys {
return e.encodeSortedMapStringString(m)
}
for mk, mv := range m {
if err := e.EncodeString(mk); err != nil {
return err
}
if err := e.EncodeString(mv); err != nil {
return err
}
}
return nil
}
func encodeMapStringInterfaceValue(e *Encoder, v reflect.Value) error {
if v.IsNil() {
return e.EncodeNil()
}
if err := e.EncodeMapLen(v.Len()); err != nil {
return err
}
m := v.Convert(mapStringInterfaceType).Interface().(map[string]interface{})
if e.sortMapKeys {
return e.encodeSortedMapStringInterface(m)
}
for mk, mv := range m {
if err := e.EncodeString(mk); err != nil {
return err
}
if err := e.Encode(mv); err != nil {
return err
}
}
return nil
}
func (e *Encoder) encodeSortedMapStringString(m map[string]string) error {
keys := make([]string, 0, len(m))
for k, _ := range m {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
err := e.EncodeString(k)
if err != nil {
return err
}
if err = e.EncodeString(m[k]); err != nil {
return err
}
}
return nil
}
func (e *Encoder) encodeSortedMapStringInterface(m map[string]interface{}) error {
keys := make([]string, 0, len(m))
for k, _ := range m {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
err := e.EncodeString(k)
if err != nil {
return err
}
if err = e.Encode(m[k]); err != nil {
return err
}
}
return nil
}
func (e *Encoder) EncodeMapLen(l int) error {
if l < 16 {
return e.writeCode(codes.FixedMapLow | codes.Code(l))
}
if l < 65536 {
return e.write2(codes.Map16, uint16(l))
}
return e.write4(codes.Map32, uint32(l))
}
func encodeStructValue(e *Encoder, strct reflect.Value) error {
var structFields *fields
if e.useJSONTag {
structFields = jsonStructs.Fields(strct.Type())
} else {
structFields = structs.Fields(strct.Type())
}
if e.structAsArray || structFields.AsArray {
return encodeStructValueAsArray(e, strct, structFields.List)
}
fields := structFields.OmitEmpty(strct)
if err := e.EncodeMapLen(len(fields)); err != nil {
return err
}
for _, f := range fields {
if err := e.EncodeString(f.name); err != nil {
return err
}
if err := f.EncodeValue(e, strct); err != nil {
return err
}
}
return nil
}
func encodeStructValueAsArray(e *Encoder, strct reflect.Value, fields []*field) error {
if err := e.EncodeArrayLen(len(fields)); err != nil {
return err
}
for _, f := range fields {
if err := f.EncodeValue(e, strct); err != nil {
return err
}
}
return nil
}
|
