Function decodeStruct

docstore/driver/codec.go:673–703

(v reflect.Value, d Decoder)

}

func decodeStruct(v reflect.Value, d Decoder) error {
	fs, err := fieldCache.Fields(v.Type())
	if err != nil {
		return err
	}
	d.DecodeMap(func(key string, d2 Decoder, exactMatch bool) bool {
		if err != nil {
			return false
		}
		var f *fields.Field
		if exactMatch {
			f = fs.MatchExact(key)
		} else {
			f = fs.MatchFold(key)
		}
		if f == nil {
			err = gcerr.Newf(gcerr.InvalidArgument, nil, "no field matching %q in %s", key, v.Type())
			return false
		}
		fv, ok := fieldByIndexCreate(v, f.Index)
		if !ok {
			err = gcerr.Newf(gcerr.InvalidArgument, nil,
				"setting field %q in %s: cannot create embedded pointer field of unexported type",
				key, v.Type())
			return false
		}
		err = decode(fv, d2)
		return err == nil
	})
	return err
}

// fieldByIndexCreate retrieves the the field of v at the given index if present,
// creating embedded struct pointers where necessary.