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Tue, 05 May 2020 08:58:52 -0400 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-374-voh5NsUNPQeQMHMLUaInxg-1; Tue, 05 May 2020 08:58:46 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E11971005510; Tue, 5 May 2020 12:58:45 +0000 (UTC) Received: from localhost (ovpn-113-206.ams2.redhat.com [10.36.113.206]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 81A375C1D3; Tue, 5 May 2020 12:58:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588683530; 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=cQR0M9fWCh4ng08cJMMLE0yhSJzmSpgm/cT233yhunA=; b=Sqw5BT5OPuO5oVsGefNBKN7Fctc8+MoLOXmp3wHPnZkVvVlWPx/lzqgVk4IiGLVB7xbm1X cOzA2rbmm95mj9XkAL0SbQxOnO6+nU+lb2AZri+kvdYTcobJXSJgjJqcpde+JU7yMtY/EY 2V5XWNZIn26UD93h42464obUbeiGzDM= X-MC-Unique: voh5NsUNPQeQMHMLUaInxg-1 From: Max Reitz To: qemu-block@nongnu.org Subject: [PULL 08/24] iotests: touch up log function signature Date: Tue, 5 May 2020 14:58:10 +0200 Message-Id: <20200505125826.1001451-9-mreitz@redhat.com> In-Reply-To: <20200505125826.1001451-1-mreitz@redhat.com> References: <20200505125826.1001451-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 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=205.139.110.120; envelope-from=mreitz@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/05 03:48:16 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] 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_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Kevin Wolf , Peter Maydell , qemu-devel@nongnu.org, Max Reitz 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" From: John Snow Representing nested, recursive data structures in mypy is notoriously difficult; the best we can reliably do right now is denote the leaf types as "Any" while describing the general shape of the data. Regardless, this fully annotates the log() function. Typing notes: TypeVar is a Type variable that can optionally be constrained by a sequence of possible types. This variable is bound to a specific type per-invocation, like a Generic. log() behaves as log() now, where the incoming type informs the signature it expects for any filter arguments passed in. If Msg is a str, then filter should take and return a str. Signed-off-by: John Snow Reviewed-by: Max Reitz Message-Id: <20200331000014.11581-9-jsnow@redhat.com> Reviewed-by: Kevin Wolf Signed-off-by: Max Reitz --- tests/qemu-iotests/iotests.py | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py index 374a8f6077..69f24223d2 100644 --- a/tests/qemu-iotests/iotests.py +++ b/tests/qemu-iotests/iotests.py @@ -28,6 +28,7 @@ import signal import struct import subprocess import sys +from typing import (Any, Callable, Dict, Iterable, List, Optional, TypeVar) import unittest =20 # pylint: disable=3Dimport-error, wrong-import-position @@ -354,9 +355,16 @@ def filter_qmp_imgfmt(qmsg): return value return filter_qmp(qmsg, _filter) =20 -def log(msg, filters=3D(), indent=3DNone): - '''Logs either a string message or a JSON serializable message (like Q= MP). - If indent is provided, JSON serializable messages are pretty-printed.'= '' + +Msg =3D TypeVar('Msg', Dict[str, Any], List[Any], str) + +def log(msg: Msg, + filters: Iterable[Callable[[Msg], Msg]] =3D (), + indent: Optional[int] =3D None) -> None: + """ + Logs either a string message or a JSON serializable message (like QMP). + If indent is provided, JSON serializable messages are pretty-printed. + """ for flt in filters: msg =3D flt(msg) if isinstance(msg, (dict, list)): --=20 2.26.2