Re: Re: [PATCH 07/10] qemu-replies-tool: Add validation of known fields in 'query-qmp-schema'

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On Fri, Jan 26, 2024 at 06:40:23 -0800, Andrea Bolognani wrote:
> On Fri, Jan 26, 2024 at 09:33:13AM +0100, Peter Krempa wrote:
> > On Thu, Jan 25, 2024 at 09:47:11 -0800, Andrea Bolognani wrote:
> > > On Tue, Jan 16, 2024 at 05:12:41PM +0100, Peter Krempa wrote:
> > > > +def validate_qmp_schema_check_keys(entry, mandatory, optional):

[...]

> > > > +    for k, t in optional:
> > > > +        if k in keys:
> > > > +            keys.discard(k)
> > > > +
> > > > +            if t is not None:
> > > > +                if not isinstance(entry[k], t):
> > > > +                    raise qmpSchemaException("key '%s' is not of the expected type '%s' in schema '%s'" % (k, t, entry))
> > >
> > > This doesn't cover the case where the value for the key is supposed
> > > to be JSON null. You can either change this to something like
> > >
> > >   if ((t is not None and not isinstance(entry[k], t)) or
> > >       (t is None and entry[k] is not None)):
> > >       raise qmpSchemaException(...)
> > >
> > > or, more simply, drop the check on t being None...
> > >
> > > > +def validate_qmp_schema(schemalist):
> > > > +    for entry in schemalist:
> > > > +        if not isinstance(entry, dict):
> > > > +            raise qmpSchemaException("schema entry '%s' is not a JSON Object (dict)" % (entry))
> > > > +
> > > > +        match entry.get('meta-type', None):
> > > > +            case 'object':
> > > > +                for m in entry.get('members', []):
> > > > +                    validate_qmp_schema_check_keys(m,
> > > > +                                                   mandatory=[('name', str),
> > > > +                                                              ('type', str)],
> > > > +                                                   optional=[('default', None),
> > >
> > > ... and change the second member of the tuple to type(None) here.a

I liked this version in the end.

> > >
> > > >  def process_one(filename, args):
> > > >      try:
> > > >          conv = qemu_replies_load(filename)
> > > >
> > > >          modify_replies(conv)
> > > >
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