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Re: [Qemu-devel] [PATCH v2 01/54] qapi: fix type_seen key error
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v2 01/54] qapi: fix type_seen key error |
Date: |
Tue, 22 Aug 2017 18:40:15 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Marc-André Lureau <address@hidden> writes:
> Hi
>
> ----- Original Message -----
>> Marc-André Lureau <address@hidden> writes:
>>
>> > The type_seen member can be of a different type than the 'qtype' being
>> > checked, since a string create several conflicts. Lookup the real
>> > conflicting type in the conflict set, that one must be present in
>> > type_seen.
>> >
>> > This fixes the following error, reproducible with the modified test:
>> >
>> > Traceback (most recent call last):
>> > File "/home/elmarco/src/qq/tests/qapi-schema/test-qapi.py", line 56, in
>> > <module>
>> > schema = QAPISchema(sys.argv[1])
>> > File "/home/elmarco/src/qq/scripts/qapi.py", line 1470, in __init__
>> > self.exprs = check_exprs(parser.exprs)
>> > File "/home/elmarco/src/qq/scripts/qapi.py", line 959, in check_exprs
>> > check_alternate(expr, info)
>> > File "/home/elmarco/src/qq/scripts/qapi.py", line 831, in check_alternate
>> > % (name, key, types_seen[qtype]))
>> > KeyError: 'QTYPE_QSTRING'
>> >
>> > Signed-off-by: Marc-André Lureau <address@hidden>
>> > ---
>> > scripts/qapi.py | 6 ++++--
>> > tests/qapi-schema/alternate-conflict-string.json | 4 ++--
>> > 2 files changed, 6 insertions(+), 4 deletions(-)
>> >
>> > diff --git a/scripts/qapi.py b/scripts/qapi.py
>> > index 8aa2775f12..a3ac799535 100644
>> > --- a/scripts/qapi.py
>> > +++ b/scripts/qapi.py
>> > @@ -825,10 +825,12 @@ def check_alternate(expr, info):
>> > else:
>> > conflicting.add('QTYPE_QNUM')
>> > conflicting.add('QTYPE_QBOOL')
>> > - if conflicting & set(types_seen):
>> > + conflict = conflicting & set(types_seen)
>> > + if conflict:
>> > + conflict_qtype = list(conflict)[0]
>>
>> Converting from set to list just to extract an element is clumsly.
>> Let's use conflict.pop(), and eliminate the variable. Can do on commit.
>
> I didn't realize that. thanks
I didn't know about .pop() either, but I went "there's *got* to be a
better way!" and searched the docs for it :)
[...]
[Qemu-devel] [PATCH v2 07/54] tpm: simplify driver registration & lookup, Marc-André Lureau, 2017/08/22
[Qemu-devel] [PATCH v2 26/54] qapi-types: refactor variants handling, Marc-André Lureau, 2017/08/22
[Qemu-devel] [PATCH v2 15/54] qapi: add 'if' to top-level expressions, Marc-André Lureau, 2017/08/22
[Qemu-devel] [PATCH v2 36/54] qapi: add #if conditions to generated variants, Marc-André Lureau, 2017/08/22
[Qemu-devel] [PATCH v2 28/54] qapi: do not define enumeration value explicitely, Marc-André Lureau, 2017/08/22