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package msgpack
import (
"reflect"
"github.com/vmihailenco/msgpack/v4/codes"
)
var sliceStringType = reflect.TypeOf(([]string)(nil))
func encodeStringValue(e *Encoder, v reflect.Value) error {
return e.EncodeString(v.String())
}
func encodeByteSliceValue(e *Encoder, v reflect.Value) error {
return e.EncodeBytes(v.Bytes())
}
func encodeByteArrayValue(e *Encoder, v reflect.Value) error {
if err := e.EncodeBytesLen(v.Len()); err != nil {
return err
}
if v.CanAddr() {
b := v.Slice(0, v.Len()).Bytes()
return e.write(b)
}
e.buf = grow(e.buf, v.Len())
reflect.Copy(reflect.ValueOf(e.buf), v)
return e.write(e.buf)
}
func grow(b []byte, n int) []byte {
if cap(b) >= n {
return b[:n]
}
b = b[:cap(b)]
b = append(b, make([]byte, n-len(b))...)
return b
}
func (e *Encoder) EncodeBytesLen(l int) error {
if l < 256 {
return e.write1(codes.Bin8, uint8(l))
}
if l < 65536 {
return e.write2(codes.Bin16, uint16(l))
}
return e.write4(codes.Bin32, uint32(l))
}
func (e *Encoder) encodeStrLen(l int) error {
if l < 32 {
return e.writeCode(codes.FixedStrLow | codes.Code(l))
}
if l < 256 {
return e.write1(codes.Str8, uint8(l))
}
if l < 65536 {
return e.write2(codes.Str16, uint16(l))
}
return e.write4(codes.Str32, uint32(l))
}
func (e *Encoder) EncodeString(v string) error {
if err := e.encodeStrLen(len(v)); err != nil {
return err
}
return e.writeString(v)
}
func (e *Encoder) EncodeBytes(v []byte) error {
if v == nil {
return e.EncodeNil()
}
if err := e.EncodeBytesLen(len(v)); err != nil {
return err
}
return e.write(v)
}
func (e *Encoder) EncodeArrayLen(l int) error {
if l < 16 {
return e.writeCode(codes.FixedArrayLow | codes.Code(l))
}
if l < 65536 {
return e.write2(codes.Array16, uint16(l))
}
return e.write4(codes.Array32, uint32(l))
}
func encodeStringSliceValue(e *Encoder, v reflect.Value) error {
ss := v.Convert(sliceStringType).Interface().([]string)
return e.encodeStringSlice(ss)
}
func (e *Encoder) encodeStringSlice(s []string) error {
if s == nil {
return e.EncodeNil()
}
if err := e.EncodeArrayLen(len(s)); err != nil {
return err
}
for _, v := range s {
if err := e.EncodeString(v); err != nil {
return err
}
}
return nil
}
func encodeSliceValue(e *Encoder, v reflect.Value) error {
if v.IsNil() {
return e.EncodeNil()
}
return encodeArrayValue(e, v)
}
func encodeArrayValue(e *Encoder, v reflect.Value) error {
l := v.Len()
if err := e.EncodeArrayLen(l); err != nil {
return err
}
for i := 0; i < l; i++ {
if err := e.EncodeValue(v.Index(i)); err != nil {
return err
}
}
return nil
}
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