Re: [PATCH v4 02/11] pack-objects: turn type and in_pack_type to bitfields

> An extra field type_valid is added to carry the equivalent of OBJ_BAD
> in the original "type" field. in_pack_type always contains a valid
> type so we only need 3 bits for it.
> ...
> @@ -1570,7 +1576,7 @@ static void drop_reused_delta(struct object_entry *entry)
>  	entry->depth = 0;
>  
>  	oi.sizep = &entry->size;
> -	oi.typep = &entry->type;
> +	oi.typep = &type;
>  	if (packed_object_info(entry->in_pack, entry->in_pack_offset, &oi) < 0) {
>  		/*
>  		 * We failed to get the info from this pack for some reason;
> @@ -1578,8 +1584,10 @@ static void drop_reused_delta(struct object_entry *entry)
>  		 * And if that fails, the error will be recorded in entry->type

>  		 * and dealt with in prepare_pack().
>  		 */
> -		entry->type = sha1_object_info(entry->idx.oid.hash,
> -					       &entry->size);
> +		oe_set_type(entry, sha1_object_info(entry->idx.oid.hash,
> +						    &entry->size));
> +	} else {
> +		oe_set_type(entry, type);
>  	}
>  }