go_type_ptr = obj['tab']['_type']
	elif is_eface(obj):
		go_type_ptr = obj['_type']
	else:
		return

	return go_type_ptr.cast(gdb.lookup_type("struct reflect.rtype").pointer()).dereference()


def iface_dtype(obj):
	"Decode type of the data field of an eface or iface struct."
	# known issue: dtype_name decoded from runtime.rtype is "nested.Foo"
	# but the dwarf table lists it as "full/path/to/nested.Foo"

	if offset == len(bytes) {
		if !setDefaultValue(v, params) {
			err = SyntaxError{"sequence truncated"}
		}
		return
	}

	// Deal with the ANY type.
	if ifaceType := fieldType; ifaceType.Kind() == reflect.Interface && ifaceType.NumMethod() == 0 {
		var t tagAndLength
		t, offset, err = parseTagAndLength(bytes, offset)
		if err != nil {
			return
		}
		if invalidLength(offset, t.length, len(bytes)) {

		DW_CHILDREN_yes,
		[]dwAttrForm{
			{DW_AT_name, DW_FORM_string},
			{DW_AT_byte_size, DW_FORM_udata},
			{DW_AT_go_kind, DW_FORM_data1},
			{DW_AT_go_runtime_type, DW_FORM_addr},
		},
	},

	/* IFACETYPE */
	{
		DW_TAG_typedef,
		DW_CHILDREN_yes,
		[]dwAttrForm{
			{DW_AT_name, DW_FORM_string},
			{DW_AT_type, DW_FORM_ref_addr},
			{DW_AT_go_kind, DW_FORM_data1},
			{DW_AT_go_runtime_type, DW_FORM_addr},