From patchwork Fri Mar 15 15:22:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 13593661 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 95025C54E58 for ; Fri, 15 Mar 2024 15:26:47 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rl9P5-0007kM-S5; Fri, 15 Mar 2024 11:23:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rl9P3-0007ij-8h for qemu-devel@nongnu.org; Fri, 15 Mar 2024 11:23:25 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rl9On-0001zg-IY for qemu-devel@nongnu.org; Fri, 15 Mar 2024 11:23:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1710516189; 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=99xpQP3dRXGRzaZ4BSuLJQSah/GSEKGmhJqf2/Q2Rrs=; b=EDh+3++b413tQ+wsEb5AGA76cADk7nU+8SOOnDeSoiHibZlfJdVvYUQkYMteb1F8TfJRHT 5dGnln/dEa3J8DfHZGcL8od8qOl2RmI/IFYEKbrg3Ixdithj016rY573sBHVPOerZWIbAT WoKzXpNZvkYZkksiwgq+LIRYUR/6jVs= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-518-Y1tilC4XO6697LypnGE2wg-1; Fri, 15 Mar 2024 11:23:06 -0400 X-MC-Unique: Y1tilC4XO6697LypnGE2wg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 41E4C1C00D2A; Fri, 15 Mar 2024 15:23:06 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.138]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 21E042166AE5; Fri, 15 Mar 2024 15:23:06 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id F1FDF21E6827; Fri, 15 Mar 2024 16:23:01 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Cc: jsnow@redhat.com, peter.maydell@linaro.org, michael.roth@amd.com Subject: [PATCH v5 11/25] qapi/schema: assert resolve_type has 'info' and 'what' args on error Date: Fri, 15 Mar 2024 16:22:47 +0100 Message-ID: <20240315152301.3621858-12-armbru@redhat.com> In-Reply-To: <20240315152301.3621858-1-armbru@redhat.com> References: <20240315152301.3621858-1-armbru@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.933, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: John Snow resolve_type() is generally used to resolve configuration-provided type names into type objects, and generally requires valid 'info' and 'what' parameters. In some cases, such as with QAPISchemaArrayType.check(), resolve_type may be used to resolve built-in types and as such will not have an 'info' argument, but also must not fail in this scenario. Use an assertion to sate mypy that we will indeed have 'info' and 'what' parameters for the error pathway in resolve_type. Note: there are only three callsites to resolve_type at present where "info" is perceived by mypy to be possibly None: 1) QAPISchemaArrayType.check() 2) QAPISchemaObjectTypeMember.check() 3) QAPISchemaEvent.check() Of those three, only the first actually ever passes None; the other two are limited by their base class initializers which accept info=None, but neither subclass actually use a None value in practice, currently. Signed-off-by: John Snow Reviewed-by: Markus Armbruster Signed-off-by: Markus Armbruster --- scripts/qapi/schema.py | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py index 1034825415..0ef9b3398a 100644 --- a/scripts/qapi/schema.py +++ b/scripts/qapi/schema.py @@ -996,6 +996,7 @@ def lookup_type(self, name): def resolve_type(self, name, info, what): typ = self.lookup_type(name) if not typ: + assert info and what # built-in types must not fail lookup if callable(what): what = what(info) raise QAPISemError(