From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B76BC4361B for ; Fri, 18 Dec 2020 20:55:55 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 0AF7923D69 for ; Fri, 18 Dec 2020 20:55:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0AF7923D69 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56422 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kqMn4-00039q-4P for qemu-devel@archiver.kernel.org; Fri, 18 Dec 2020 15:55:54 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55574) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kqMlX-0000zW-Hs for qemu-devel@nongnu.org; Fri, 18 Dec 2020 15:54:19 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:31819) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kqMlV-0002uP-2a for qemu-devel@nongnu.org; Fri, 18 Dec 2020 15:54:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608324856; 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=iIR5H5b0Fg9hutkcW1H6MLLjU07mQdtHF1VXKSAe6dE=; b=XkAunY+yh75E+Ql6ZQgF0nsgpAysCSmntBvvG7yB4NeYJmfFAEEiy3Ph87SafsiNRxKeB0 bWpDakk7RR0kMUGMjdh4XJUSO3RCfcxcok+SHAIuPDslztlNopdDwxnK8Dt1xh0otEeOhe bmj2JTNQw9/B1WBI3n0JIeX/S4vi7Mg= 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-48-g-yBAbAfOViG5myz2VS1sA-1; Fri, 18 Dec 2020 15:54:14 -0500 X-MC-Unique: g-yBAbAfOViG5myz2VS1sA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 370FF107ACE3 for ; Fri, 18 Dec 2020 20:54:13 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-103.ams2.redhat.com [10.36.112.103]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 8C8475D9E4; Fri, 18 Dec 2020 20:54:09 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id CDFC31141D30; Fri, 18 Dec 2020 21:54:07 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 01/11] qapi/commands: assert arg_type is not None Date: Fri, 18 Dec 2020 21:53:57 +0100 Message-Id: <20201218205407.1326907-2-armbru@redhat.com> In-Reply-To: <20201218205407.1326907-1-armbru@redhat.com> References: <20201218205407.1326907-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=63.128.21.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H4=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: marcandre.lureau@redhat.com, jsnow@redhat.com, ehabkost@redhat.com, crosa@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: John Snow when boxed is true, expr.py asserts that we must have arguments. Ultimately, this should mean that if boxed is True, that arg_type should be defined. Mypy cannot infer this, and does not support 'stateful' type inference, e.g.: ``` if x: assert y is not None ... if x: y.etc() ``` does not work, because mypy does not statefully remember the conditional assertion in the second block. Help mypy out by creating a new local that it can track more easily. Signed-off-by: John Snow Message-Id: <20201217015927.197287-2-jsnow@redhat.com> --- scripts/qapi/commands.py | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/scripts/qapi/commands.py b/scripts/qapi/commands.py index 50978090b4..71744f48a3 100644 --- a/scripts/qapi/commands.py +++ b/scripts/qapi/commands.py @@ -126,6 +126,9 @@ def gen_marshal(name: str, boxed: bool, ret_type: Optional[QAPISchemaType]) -> str: have_args = boxed or (arg_type and not arg_type.is_empty()) + if have_args: + assert arg_type is not None + arg_type_c_name = arg_type.c_name() ret = mcgen(''' @@ -147,7 +150,7 @@ def gen_marshal(name: str, ret += mcgen(''' %(c_name)s arg = {0}; ''', - c_name=arg_type.c_name()) + c_name=arg_type_c_name) ret += mcgen(''' @@ -163,7 +166,7 @@ def gen_marshal(name: str, ok = visit_check_struct(v, errp); } ''', - c_arg_type=arg_type.c_name()) + c_arg_type=arg_type_c_name) else: ret += mcgen(''' ok = visit_check_struct(v, errp); @@ -193,7 +196,7 @@ out: ret += mcgen(''' visit_type_%(c_arg_type)s_members(v, &arg, NULL); ''', - c_arg_type=arg_type.c_name()) + c_arg_type=arg_type_c_name) ret += mcgen(''' visit_end_struct(v, NULL); -- 2.26.2