func (d *Decoder) query(q *queryResult) error {
q.nextKey()
if q.key == "" {
v, err := d.DecodeInterface()
if err != nil {
return err
}
q.values = append(q.values, v)
return nil
}
code, err := d.PeekCode()
if err != nil {
return err
}
switch {
case code == codes.Map16 || code == codes.Map32 || codes.IsFixedMap(code):
err = d.queryMapKey(q)
case code == codes.Array16 || code == codes.Array32 || codes.IsFixedArray(code):
err = d.queryArrayIndex(q)
default:
err = fmt.Errorf("msgpack: unsupported code=%x decoding key=%q", code, q.key)
}
return err
}
// Decodes value into interface. Possible value types are:
// - nil,
// - int64,
// - uint64,
// - bool,
// - float32 and float64,
// - string,
// - slices of any of the above,
// - maps of any of the above.
func (d *Decoder) DecodeInterface() (interface{}, error) {
c, err := d.r.ReadByte()
if err != nil {
return nil, err
}
if codes.IsFixedNum(c) {
if c >= 0 {
return d.uint(c)
}
return d.int(c)
}
if codes.IsFixedMap(c) {
d.r.UnreadByte()
return d.DecodeMap()
}
if codes.IsFixedArray(c) {
d.r.UnreadByte()
return d.DecodeSlice()
}
if codes.IsFixedString(c) {
return d.string(c)
}
switch c {
case codes.Nil:
return nil, nil
case codes.False, codes.True:
return d.bool(c)
case codes.Float:
return d.float32(c)
case codes.Double:
return d.float64(c)
case codes.Uint8, codes.Uint16, codes.Uint32, codes.Uint64:
return d.uint(c)
case codes.Int8, codes.Int16, codes.Int32, codes.Int64:
return d.int(c)
case codes.Bin8, codes.Bin16, codes.Bin32:
return d.bytes(c)
case codes.Str8, codes.Str16, codes.Str32:
return d.string(c)
case codes.Array16, codes.Array32:
d.r.UnreadByte()
return d.DecodeSlice()
case codes.Map16, codes.Map32:
d.r.UnreadByte()
return d.DecodeMap()
case codes.FixExt1, codes.FixExt2, codes.FixExt4, codes.FixExt8, codes.FixExt16, codes.Ext8, codes.Ext16, codes.Ext32:
return d.ext(c)
}
return 0, fmt.Errorf("msgpack: unknown code %x decoding interface{}", c)
}
// Decodes value into interface. Possible value types are:
// - nil,
// - int64,
// - uint64,
// - bool,
// - float32 and float64,
// - string,
// - slices of any of the above,
// - maps of any of the above.
func (d *Decoder) DecodeInterface() (interface{}, error) {
c, err := d.peekCode()
if err != nil {
return nil, err
}
if codes.IsFixedNum(c) {
return d.DecodeInt64()
} else if codes.IsFixedMap(c) {
return d.DecodeMap()
} else if codes.IsFixedArray(c) {
return d.DecodeSlice()
} else if codes.IsFixedString(c) {
return d.DecodeString()
}
switch c {
case codes.Nil:
_, err := d.r.ReadByte()
return nil, err
case codes.False, codes.True:
return d.DecodeBool()
case codes.Float:
return d.DecodeFloat32()
case codes.Double:
return d.DecodeFloat64()
case codes.Uint8, codes.Uint16, codes.Uint32, codes.Uint64:
return d.DecodeUint64()
case codes.Int8, codes.Int16, codes.Int32, codes.Int64:
return d.DecodeInt64()
case codes.Bin8, codes.Bin16, codes.Bin32:
return d.DecodeBytes()
case codes.Str8, codes.Str16, codes.Str32:
return d.DecodeString()
case codes.Array16, codes.Array32:
return d.DecodeSlice()
case codes.Map16, codes.Map32:
return d.DecodeMap()
case codes.FixExt1, codes.FixExt2, codes.FixExt4, codes.FixExt8, codes.FixExt16, codes.Ext8, codes.Ext16, codes.Ext32:
return d.decodeExt()
}
return 0, fmt.Errorf("msgpack: invalid code %x decoding interface{}", c)
}
// Skip skips next value.
func (d *Decoder) Skip() error {
c, err := d.r.ReadByte()
if err != nil {
return err
}
if codes.IsFixedNum(c) {
return nil
} else if codes.IsFixedMap(c) {
return d.skipMap(c)
} else if codes.IsFixedArray(c) {
return d.skipSlice(c)
} else if codes.IsFixedString(c) {
return d.skipBytes(c)
}
switch c {
case codes.Nil, codes.False, codes.True:
return nil
case codes.Uint8, codes.Int8:
return d.skipN(1)
case codes.Uint16, codes.Int16:
return d.skipN(2)
case codes.Uint32, codes.Int32, codes.Float:
return d.skipN(4)
case codes.Uint64, codes.Int64, codes.Double:
return d.skipN(8)
case codes.Bin8, codes.Bin16, codes.Bin32:
return d.skipBytes(c)
case codes.Str8, codes.Str16, codes.Str32:
return d.skipBytes(c)
case codes.Array16, codes.Array32:
return d.skipSlice(c)
case codes.Map16, codes.Map32:
return d.skipMap(c)
case codes.FixExt1, codes.FixExt2, codes.FixExt4, codes.FixExt8, codes.FixExt16, codes.Ext8, codes.Ext16, codes.Ext32:
return d.skipExt(c)
}
return fmt.Errorf("msgpack: unknown code %x", c)
}