Re: [Qemu-devel] [PATCH 5/6] json: Eliminate lexer state IN_ERROR

[Eric Blake <eblake@redhat.com>]

On 08/27/2018 02:00 AM, Markus Armbruster wrote:
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
>   qobject/json-lexer.c      | 9 +++++----
>   qobject/json-parser-int.h | 8 ++++----
>   2 files changed, 9 insertions(+), 8 deletions(-)

> -
>   typedef enum json_token_type {
> -    JSON_MIN = 100,
> -    JSON_LCURLY = JSON_MIN,
> +    JSON_ERROR = 0,             /* must be zero, see json_lexer[] */
> +    /* Gap for lexer states */
> +    JSON_LCURLY = 100,
> +    JSON_MIN = JSON_LCURLY,

In an earlier version of this type of cleanup, you swapped the IN_ and 
JSON_ values and eliminated the gap, to make the overall table more 
compact (no storage wasted on any of the states in the gap between the two).

https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg01178.html

Is it still worth trying to minimize the gap between the two sequences, 
even if you now no longer swap them in order?

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org