treat arrays as fixed length

codec_test.go

@@ -149,21 +149,11 @@ func TestBasicSlice(t *testing.T) {
  b: hexMustDecode("05000000 11 22 33 44 55"),
  name: "byte slice",
  },
- {
- v: [6]byte{0x11, 0x22, 0x33, 0x44, 0x55},
- b: hexMustDecode("06000000 11 22 33 44 55 00"),
- name: "byte array",
- },
  {
  v: []uint16{0x11, 0x22},
  b: hexMustDecode("02000000 1100 2200"),
  name: "uint16 slice",
  },
- {
- v: [3]uint16{0x11, 0x22},
- b: hexMustDecode("03000000 1100 2200 0000"),
- name: "uint16 array",
- },
  {
  v: "ሰማይ አይታረስ ንጉሥ አይከሰስ።",
  b: hexMustDecode("36000000E188B0E1889BE18BAD20E18AA0E18BADE189B3E188A8E188B520E18A95E18C89E188A520E18AA0E18BADE18AA8E188B0E188B5E18DA2"),
@@ -296,6 +286,21 @@ func TestStructWithFixedLenMember(t *testing.T) {
  })
 }
 
+func TestArray(t *testing.T) {
+ runTest(t, []*testCase{
+ {
+ v: [4]byte{0x11, 0x22, 0x33, 0x44},
+ b: hexMustDecode("11223344"),
+ name: "byte array",
+ },
+ {
+ v: [2]uint32{0x11, 0x22},
+ b: hexMustDecode("11000000 22000000"),
+ name: "uint32 array",
+ },
+ })
+}
+
 func TestRecursiveStruct(t *testing.T) {
  type StructTag struct {
  Address []byte

decode.go

@@ -170,6 +170,9 @@ func (d *Decoder) decodeArray(rv reflect.Value, enumVariants map[int32]reflect.T
  if !rv.CanSet() {
  return errors.New("array cannot set")
  }
+ if rv.Kind() == reflect.Array {
+ fixedLen = rv.Len()
+ }
  if rv.Type().Elem() == reflect.TypeOf(byte(0)) {
  var b []byte
  if b, err = d.decodeByteSlice(fixedLen); err != nil {

encode.go

@@ -58,7 +58,9 @@ func (e *Encoder) encode(rv reflect.Value, enumVariants map[reflect.Type]int32,
 }
 
 func (e *Encoder) encodeSlice(rv reflect.Value, enumVariants map[reflect.Type]int32, fixedLen int) (err error) {
- if fixedLen == 0 {
+ if rv.Kind() == reflect.Array {
+ // ignore fixedLen
+ } else if fixedLen == 0 {
  if err = binary.Write(e.w, binary.LittleEndian, uint32(rv.Len())); err != nil {
  return err
  }