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Fri, 31 Oct 2025 08:25:42 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGszhu8xvVmUXg56hTW6ajlY+QMIjTgUhutkZIzqxDTkpQi2rFzK5izEHH41Qv5LZJPfze+5w== X-Received: by 2002:a5d:64e7:0:b0:3e7:45c7:828e with SMTP id ffacd0b85a97d-429bd6a4bc8mr3703640f8f.33.1761924342479; Fri, 31 Oct 2025 08:25:42 -0700 (PDT) Received: from [192.168.10.48] ([151.95.110.222]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4773c48ee52sm2283185e9.2.2025.10.31.08.25.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Oct 2025 08:25:41 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: qemu-rust@nongnu.org Subject: [PATCH 0/4] rust: improvements to errors Date: Fri, 31 Oct 2025 16:25:35 +0100 Message-ID: <20251031152540.293293-1-pbonzini@redhat.com> X-Mailer: git-send-email 2.51.1 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: Nx7j2sYTTfedMXYQNdM7igZvs6r_4GGBPTxJoO1_Nes_1761924343 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-rust@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: QEMU Rust-related patches and discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org Sender: qemu-rust-bounces+qemu-rust=archiver.kernel.org@nongnu.org The first three patches are extracted from the serde work; as to the fourth, I was thinking about it for a while - it provides an extension trait for Result that makes it easy to use &error_fatal. The main advantage is to make it clear how errors are handled. Paolo Paolo Bonzini (4): rust/util: add ensure macro rust/util: use anyhow's native chaining capabilities rust/util: replace Error::err_or_unit/err_or_else with Error::with_errp rust: pull error_fatal out of SysbusDeviceMethods::sysbus_realize rust/hw/char/pl011/src/device.rs | 4 +- rust/hw/core/src/sysbus.rs | 13 +- rust/hw/timer/hpet/src/device.rs | 21 ++- rust/hw/timer/hpet/src/fw_cfg.rs | 7 +- rust/util/src/error.rs | 272 ++++++++++++++++++------------- rust/util/src/lib.rs | 2 +- 6 files changed, 183 insertions(+), 136 deletions(-) -- 2.51.1