From nobody Mon Feb 9 04:03:34 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1613443060414588.5954956113985; Mon, 15 Feb 2021 18:37:40 -0800 (PST) Received: from localhost ([::1]:43552 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lBqF9-0002Qb-41 for importer@patchew.org; Mon, 15 Feb 2021 21:37:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:47078) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lBpww-0001sz-Qj for qemu-devel@nongnu.org; Mon, 15 Feb 2021 21:18:51 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:41631) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lBpwk-0003A5-K7 for qemu-devel@nongnu.org; Mon, 15 Feb 2021 21:18:50 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-207-888VQ6F3MYKc59EgNfgVUg-1; Mon, 15 Feb 2021 21:18:35 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8AB52801962; Tue, 16 Feb 2021 02:18:34 +0000 (UTC) Received: from scv.redhat.com (ovpn-112-247.rdu2.redhat.com [10.10.112.247]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8238F10023AF; Tue, 16 Feb 2021 02:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613441917; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2mhAxduW96AZmSO+4SUDhkdACORPz0Iapanao3jJ4ys=; b=cNfqJrEnNifbljakHXxLK5MWDY/U8cCGgEXW1LFPNQk78pdovU01fwN2FGVkzwt6NMMS8H 1+wLvaIAb0yGUpHMxmUQnKb0tcj3oYYEGiKYwmq+hP18JQYtyA1LmkZjp4Ap6b7klLMmJ0 kz24kWyj5FA1A5tnAesvChUmBj6EW3M= X-MC-Unique: 888VQ6F3MYKc59EgNfgVUg-1 From: John Snow To: qemu-devel@nongnu.org, Markus Armbruster Subject: [PATCH v6 17/19] qapi/introspect.py: Type _gen_tree variants as Sequence[str] Date: Mon, 15 Feb 2021 21:18:07 -0500 Message-Id: <20210216021809.134886-18-jsnow@redhat.com> In-Reply-To: <20210216021809.134886-1-jsnow@redhat.com> References: <20210216021809.134886-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jsnow@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michael Roth , John Snow , Eduardo Habkost , Cleber Rosa Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Optional[List] is clunky; an empty sequence can more elegantly convey "no variants". By downgrading "List" to "Sequence", we can also accept tuples; this is useful for the empty tuple specifically, which we may use as a default parameter because it is immutable. Signed-off-by: John Snow --- scripts/qapi/introspect.py | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/scripts/qapi/introspect.py b/scripts/qapi/introspect.py index 649225988d1..e4d31a59503 100644 --- a/scripts/qapi/introspect.py +++ b/scripts/qapi/introspect.py @@ -247,13 +247,13 @@ def _use_type(self, typ: QAPISchemaType) -> str: return self._name(typ.name) =20 @staticmethod - def _gen_features(features: List[QAPISchemaFeature] + def _gen_features(features: Sequence[QAPISchemaFeature] ) -> List[Annotated[str]]: return [Annotated(f.name, f.ifcond) for f in features] =20 def _gen_tree(self, name: str, mtype: str, obj: Dict[str, object], ifcond: Sequence[str], - features: Optional[List[QAPISchemaFeature]]) -> None: + features: Sequence[QAPISchemaFeature] =3D ()) -> None: """ Build and append a SchemaInfo object to self._trees. =20 @@ -261,7 +261,8 @@ def _gen_tree(self, name: str, mtype: str, obj: Dict[st= r, object], :param mtype: The entity's meta-type. :param obj: Additional entity fields, as appropriate for the meta-= type. :param ifcond: Sequence of conditionals that apply to this entity. - :param features: Optional features field for SchemaInfo. + :param features: Optional, The features field for SchemaInfo. + Will be omitted from the output if empty. """ comment: Optional[str] =3D None if mtype not in ('command', 'event', 'builtin', 'array'): @@ -298,7 +299,7 @@ def _gen_variant(self, variant: QAPISchemaVariant =20 def visit_builtin_type(self, name: str, info: Optional[QAPISourceInfo], json_type: str) -> None: - self._gen_tree(name, 'builtin', {'json-type': json_type}, [], None) + self._gen_tree(name, 'builtin', {'json-type': json_type}, []) =20 def visit_enum_type(self, name: str, info: Optional[QAPISourceInfo], ifcond: Sequence[str], @@ -316,7 +317,7 @@ def visit_array_type(self, name: str, info: Optional[QA= PISourceInfo], element_type: QAPISchemaType) -> None: element =3D self._use_type(element_type) self._gen_tree('[' + element + ']', 'array', {'element-type': elem= ent}, - ifcond, None) + ifcond) =20 def visit_object_type_flat(self, name: str, info: Optional[QAPISourceI= nfo], ifcond: Sequence[str], --=20 2.29.2