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From: Markus Armbruster <armbru@redhat.com>
To: John Snow <jsnow@redhat.com>
Cc: michael.roth@amd.com, qemu-devel@nongnu.org, marcandre.lureau@redhat.com
Subject: Re: [PATCH 06/28] tests/qapi-schema: Tweak to demonstrate buggy member name check
Date: Tue, 23 Mar 2021 16:44:15 +0100	[thread overview]
Message-ID: <87im5hq3hs.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <f72dbb52-059e-f773-63ad-385b9c9d9e6c@redhat.com> (John Snow's message of "Tue, 23 Mar 2021 09:20:04 -0400")

John Snow <jsnow@redhat.com> writes:

> On 3/23/21 5:40 AM, Markus Armbruster wrote:
>> Member name 'u' and names starting with 'has-' or 'has_' are reserved
>> for the generator.  check_type() enforces this, covered by tests
>> reserved-member-u and reserved-member-has.
>> These tests neglect to cover optional members, where the name starts
>> with '*'.  Tweak reserved-member-u to fix that.
>> This demonstrates the reserved member name check is broken for
>> optional members.  The next commit will fix it.
>> 
>
> The test without an optional member goes away. Do we lose coverage?
> (Do we care?)

Up to a point :)  We do try to cover all failure modes, just not in all
contexts.

The test is about this error:

         if c_name(key, False) == 'u' or c_name(key, False).startswith('has_'):
             raise QAPISemError(info, "%s uses reserved name" % key_source)

Full matrix: (is "u", starts with "has_") x (optional, not optional).

Instead of covering all four cases, we cover two: non-optional "u"
(reserved-member-u) and non-optional "has-" (reserved-member-has).

The patch flips the former to optional.  The latter still covers
non-optional.

Good enough, I think.

Do you feel I should point to reserved-member-has in the commit message?



  reply	other threads:[~2021-03-23 15:46 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-23  9:39 [PATCH 00/28] qapi: Enforce naming rules Markus Armbruster
2021-03-23  9:39 ` [PATCH 01/28] qapi/pragma: Tidy up after removal of deprecated commands Markus Armbruster
2021-03-23 12:50   ` John Snow
2021-03-23  9:39 ` [PATCH 02/28] tests/qapi-schema: Drop redundant flat-union-inline test Markus Armbruster
2021-03-23 12:54   ` John Snow
2021-03-23  9:40 ` [PATCH 03/28] tests/qapi-schema: Rework comments on longhand member definitions Markus Armbruster
2021-03-23 13:00   ` John Snow
2021-03-23 13:58     ` Eric Blake
2021-03-23 14:25       ` John Snow
2021-03-23 13:59   ` Eric Blake
2021-03-23 14:27   ` John Snow
2021-03-23  9:40 ` [PATCH 04/28] tests/qapi-schema: Belatedly update comment on alternate clash Markus Armbruster
2021-03-23 13:12   ` John Snow
2021-03-23  9:40 ` [PATCH 05/28] tests/qapi-schema: Drop TODO comment on simple unions Markus Armbruster
2021-03-23 13:16   ` John Snow
2021-03-23  9:40 ` [PATCH 06/28] tests/qapi-schema: Tweak to demonstrate buggy member name check Markus Armbruster
2021-03-23 13:20   ` John Snow
2021-03-23 15:44     ` Markus Armbruster [this message]
2021-03-23 17:09       ` John Snow
2021-03-23 20:42         ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 07/28] qapi: Fix to reject optional members with reserved names Markus Armbruster
2021-03-23 13:27   ` John Snow
2021-03-23 15:50     ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 08/28] qapi: Support flat unions tag values with leading digit Markus Armbruster
2021-03-23 14:11   ` Eric Blake
2021-03-23 14:49   ` John Snow
2021-03-23 16:18     ` Markus Armbruster
2021-03-23 21:07       ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 09/28] qapi: Lift enum-specific code out of check_name_str() Markus Armbruster
2021-03-23 14:13   ` Eric Blake
2021-03-23 21:44   ` John Snow
2021-03-23 22:11   ` John Snow
2021-03-24  5:55     ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 10/28] qapi: Rework name checking in preparation of stricter checking Markus Armbruster
2021-03-23 14:20   ` Eric Blake
2021-03-23 14:30     ` John Snow
2021-03-23 14:40       ` Eric Blake
2021-03-23 16:25     ` Markus Armbruster
2021-03-23 21:14       ` Markus Armbruster
2021-03-23 22:15   ` John Snow
2021-03-24  5:57     ` Markus Armbruster
2021-03-24 20:11       ` John Snow
2021-03-25  6:18         ` Markus Armbruster
2021-03-25 17:48           ` John Snow
2021-03-26  5:25             ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 11/28] qapi: Move uppercase rejection to check_name_lower() Markus Armbruster
2021-03-23 14:29   ` Eric Blake
2021-03-23 22:21   ` John Snow
2021-03-23  9:40 ` [PATCH 12/28] qapi: Consistently permit any case in downstream prefixes Markus Armbruster
2021-03-23 14:30   ` Eric Blake
2021-03-23 22:26   ` John Snow
2021-03-23  9:40 ` [PATCH 13/28] qapi: Enforce event naming rules Markus Armbruster
2021-03-23 14:32   ` Eric Blake
2021-03-23 22:31   ` John Snow
2021-03-24  6:22     ` Markus Armbruster
2021-03-24 20:07       ` John Snow
2021-03-25  6:22         ` Markus Armbruster
2021-03-25 17:50           ` John Snow
2021-03-23  9:40 ` [PATCH 14/28] qapi: Enforce type " Markus Armbruster
2021-03-23 14:50   ` Eric Blake
2021-03-23 16:27     ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 15/28] tests/qapi-schema: Rename redefined-builtin to redefined-predefined Markus Armbruster
2021-03-23 14:55   ` Eric Blake
2021-03-23  9:40 ` [PATCH 16/28] qapi: Factor out QAPISchemaParser._check_pragma_list_of_str() Markus Armbruster
2021-03-23 15:01   ` Eric Blake
2021-03-23  9:40 ` [PATCH 17/28] tests/qapi-schema: Rename pragma-*-crap to pragma-value-not-* Markus Armbruster
2021-03-23 15:02   ` Eric Blake
2021-03-23  9:40 ` [PATCH 18/28] tests/qapi-schema: Rename returns-whitelist to returns-bad-type Markus Armbruster
2021-03-23 15:06   ` Eric Blake
2021-03-23  9:40 ` [PATCH 19/28] qapi: Rename pragma *-whitelist to *-exceptions Markus Armbruster
2021-03-23 15:09   ` Eric Blake
2021-03-23 16:35     ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 20/28] qapi/pragma: Streamline comments on member-name-exceptions Markus Armbruster
2021-03-23 15:10   ` Eric Blake
2021-03-23  9:40 ` [PATCH 21/28] tests-qmp-cmds: Drop unused and incorrect qmp_TestIfCmd() Markus Armbruster
2021-03-23 15:11   ` Eric Blake
2021-03-23  9:40 ` [PATCH 22/28] qapi: Prepare for rejecting underscore in command and member names Markus Armbruster
2021-03-23 15:15   ` Eric Blake
2021-03-23  9:40 ` [PATCH 23/28] qapi: Enforce feature naming rules Markus Armbruster
2021-03-23 15:16   ` Eric Blake
2021-03-23  9:40 ` [PATCH 24/28] qapi: Enforce command " Markus Armbruster
2021-03-23 15:23   ` Eric Blake
2021-03-23 21:19     ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 25/28] tests/qapi-schema: Switch member name clash test to struct Markus Armbruster
2021-03-23 15:42   ` Eric Blake
2021-03-23  9:40 ` [PATCH 26/28] qapi: Enforce struct member naming rules Markus Armbruster
2021-03-23 15:46   ` Eric Blake
2021-03-23 21:23     ` Markus Armbruster
2021-03-23  9:40 ` [PATCH 27/28] qapi: Enforce enum " Markus Armbruster
2021-03-23 15:47   ` Eric Blake
2021-03-23  9:40 ` [PATCH 28/28] qapi: Enforce union and alternate branch " Markus Armbruster
2021-03-23 16:05   ` Eric Blake
2021-03-23 21:24     ` Markus Armbruster

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