func getInterface()

in go/pkg/amqp/unmarshal.go [535:605]
68 lines of code
25 McCabe index (conditional complexity)

func getInterface(data *C.pn_data_t, vp *interface{}) {
	pnType := C.pn_data_type(data)
	switch pnType {
	case C.PN_BOOL:
		*vp = bool(C.pn_data_get_bool(data))
	case C.PN_UBYTE:
		*vp = uint8(C.pn_data_get_ubyte(data))
	case C.PN_BYTE:
		*vp = int8(C.pn_data_get_byte(data))
	case C.PN_USHORT:
		*vp = uint16(C.pn_data_get_ushort(data))
	case C.PN_SHORT:
		*vp = int16(C.pn_data_get_short(data))
	case C.PN_UINT:
		*vp = uint32(C.pn_data_get_uint(data))
	case C.PN_INT:
		*vp = int32(C.pn_data_get_int(data))
	case C.PN_CHAR:
		*vp = Char(C.pn_data_get_char(data))
	case C.PN_ULONG:
		*vp = uint64(C.pn_data_get_ulong(data))
	case C.PN_LONG:
		*vp = int64(C.pn_data_get_long(data))
	case C.PN_FLOAT:
		*vp = float32(C.pn_data_get_float(data))
	case C.PN_DOUBLE:
		*vp = float64(C.pn_data_get_double(data))
	case C.PN_BINARY:
		*vp = Binary(goBytes(C.pn_data_get_binary(data)))
	case C.PN_STRING:
		*vp = goString(C.pn_data_get_string(data))
	case C.PN_SYMBOL:
		*vp = Symbol(goString(C.pn_data_get_symbol(data)))
	case C.PN_TIMESTAMP:
		*vp = goTime(C.pn_data_get_timestamp(data))
	case C.PN_UUID:
		var u UUID
		unmarshal(&u, data)
		*vp = u
	case C.PN_MAP:
		// We will try to unmarshal as a Map first, if that fails try AnyMap
		m := make(Map, int(C.pn_data_get_map(data))/2)
		if err := recoverUnmarshal(&m, data); err == nil {
			*vp = m
		} else {
			am := make(AnyMap, int(C.pn_data_get_map(data))/2)
			unmarshal(&am, data)
			*vp = am
		}
	case C.PN_LIST:
		l := List{}
		unmarshal(&l, data)
		*vp = l
	case C.PN_ARRAY:
		sp := getArrayStore(data) // interface{} containing T* for suitable T
		unmarshal(sp, data)
		*vp = reflect.ValueOf(sp).Elem().Interface()
	case C.PN_DESCRIBED:
		d := Described{}
		unmarshal(&d, data)
		*vp = d
	case C.PN_NULL:
		*vp = nil
	case C.PN_INVALID:
		// Allow decoding from an empty data object to an interface, treat it like NULL.
		// This happens when optional values or properties are omitted from a message.
		*vp = nil
	default: // Don't know how to handle this
		panic(newUnmarshalError(pnType, vp))
	}
}