Re: [Libguestfs] [PATCH v2 5/9] qapi: Generalize struct member policy checking

On Thu, Oct 28, 2021 at 12:25:16PM +0200, Markus Armbruster wrote: > The generated visitor functions call visit_deprecated_accept() and > visit_deprecated() when visiting a struct member with special feature > flag 'deprecated'. This makes the feature flag visible to the actual > visitors. I want to make feature flag 'unstable' visible there as > well, so I can add policy for it. > > To let me make it visible, replace these functions by > visit_policy_reject() and visit_policy_skip(), which take the member's > special features as an argument. Note that the new functions have the > opposite sense, i.e. the return value flips. > > Signed-off-by: Markus Armbruster <armbru(a)redhat.com&gt; > --- > +++ b/qapi/qapi-forward-visitor.c > @@ -246,25 +246,27 @@ static void forward_field_optional(Visitor *v, const char *name, bool *present) > visit_optional(ffv->target, name, present); > } > > -static bool forward_field_deprecated_accept(Visitor *v, const char *name, > - Error **errp) > +static bool forward_field_policy_reject(Visitor *v, const char *name, > + unsigned special_features, > + Error **errp) > { > ForwardFieldVisitor *ffv = to_ffv(v); > > if (!forward_field_translate_name(ffv, &name, errp)) { > return false; Should this return value be flipped? > } > - return visit_deprecated_accept(ffv->target, name, errp); > + return visit_policy_reject(ffv->target, name, special_features, errp); > } > > -static bool forward_field_deprecated(Visitor *v, const char *name) > +static bool forward_field_policy_skip(Visitor *v, const char *name, > + unsigned special_features) > { > ForwardFieldVisitor *ffv = to_ffv(v); > > if (!forward_field_translate_name(ffv, &name, NULL)) { > return false; and here too?

> } > - return visit_deprecated(ffv->target, name); > + return visit_policy_skip(ffv->target, name, special_features); > } > Otherwise, the rest of the logic changes for flipped sense look right.