2 Commits

Author	SHA1	Message	Date
romanett	9b034f8291	Enable nullable reference types centrally; migrate all unset and annotations-only projects (#4700) ... # Description Nullable reference types are now enabled once, in `common.props`, and every project in the repository builds warning-clean with them. **Configuration** - `<Nullable>enable</Nullable>` lives in `common.props`. All per-project `<Nullable>` settings are removed: 178 project files (enable, annotations, and the `disable` in the three Aot test projects). - 419 per-file `#nullable enable`/`restore` directives and the 4 `#nullable disable` directives are removed. - Kept on purpose: - The 5 `<auto-generated>` schema files (`UANodeSet.cs`, `UA Type Dictionary.cs`, `OPCBinarySchema.cs`, `SecuredApplication.cs`, `PInvokeHelper.cs`) keep `#nullable enable`. The compiler ignores the project setting in generated code, so the directive is required there. - `tests/Opc.Ua.Interop.LegacyPeer` keeps `disable`. It builds against the 1.5.378 packages and does not import the repository props. - `docs/DeveloperGuide.md` and `.github/copilot-instructions.md` now describe the central setting. **Migration** (the 43 unset and 13 annotations-only projects, roughly 10k diagnostics) - **Production code: annotated at the declarations.** Covers `tools/Opc.Ua.SourceGeneration.Core`, `src/Opc.Ua.Lds.Server` and the LDS sample. - Members, parameters and returns are nullable where null actually flows. - Null-check helpers carry `[NotNullWhen]` (`IsNull`, `IsValidXmlName`, `IsMethodTypeDesign`). - `CoreUtils.Format`, `Utils.Format`, `ITemplateWriter.WriteLine` take `params object?[]`. `Template.AddReplacement` takes `string?` (rendering already skips null replacements). - `IRegisteredServerStore.RegisterAsync` returns `Task<RegistrationEntry?>`: it returns null when a registration is removed. - Dereferences backed by an invariant (for example, the validated model) use `!`, so runtime behaviour is unchanged. - **Behavioural changes in production code** (small, deliberate): - `NodeSetToModelDesign` throws `InvalidOperationException` when the file is not a NodeSet. Before, it threw a NullReferenceException on the next line. - `ModelDesignValidator` starts its lookup tables empty instead of null. A redundant `if (m_nodes == null) return;` guard is gone. - **Test code: minimal annotations.** - `?` on values that can be null, `!` where the test asserts non-null. - `= null!` for fixture members assigned in SetUp. - `TryGetStructure<T>(out T? x)` where the inferred `T?` broke the `IEncodeable` constraint. - A few redundant `== null` checks on structs (`NodeId`, `ArrayOf<T>`) folded into the adjacent `IsNull`/`Count` checks. **Notes for reviewers** - The diff is large (~1,500 files) but almost entirely mechanical: `?`, `!` and directive removal. The non-annotation changes are listed above. - Known follow-up, not done here: `IModelDesign.Namespaces/TargetNamespace/NamespaceUris` stay non-nullable even though the validator returns null before it loads a dictionary. Making them nullable would ripple through every generator call site. ## Related Issues - Fixes #4439 ## Checklist - [ ] I have signed the [CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf) and read the [CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md) doc. - [ ] I have added tests that prove my fix is effective or that my feature works and increased code coverage. - [x] I have added all necessary documentation. - [x] I have verified that my changes do not introduce (new) build or analyzer warnings. - [ ] I ran **all** tests locally using the **UA.slnx** solution against at least .net **framework** and .net **10**, and all passed. - [ ] I fixed **all** failing and flaky tests in the CI pipelines and **all** CodeQL warnings. - [ ] I have addressed **all** PR feedback received. The "no new warnings" box covers net10.0 and net48: full non-incremental builds of `UA.slnx`, `tools/SourceGeneration.slnx`, `tools/MigrationAnalyzer.slnx` and the Aot test projects finished with 0 warnings and 0 errors under the repository's warnings-as-errors settings. net9.0 and net8.0 also had no nullable diagnostics, but they were not rebuilt after the final fixes. Tests have not been run locally yet. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-08 08:48:13 +02:00
Klaus Landsdorf	01d6b5d26c	Machinery: the OPC 40001 companion SDK with Jobs, Result Transfer, Process Values and Energy (#4578) ... > Tracking issue #4576. #4577 is merged, so this branch is rebased onto > `master` and contains only the Machinery commits. ## Summary Second of four stacked PRs. Adds the OPC UA for Machinery series as model packages plus a server and a client SDK, following the companion pattern of DI and Robotics, and the two models it depends on that the repository does not carry yet. | Package | Content | |---|---| | `Opc.Ua.IA` | OPC 10000-200 IA 1.01.4, **moved out of `Opc.Ua.Robotics`** (see below) | | `Opc.Ua.ECM` | OPC 34100 Energy Consumption Management 1.0.1 | | `Opc.Ua.PADIM` | OPC 30081 PA-DIM 1.02.0 with the IRDI dictionary | | `Opc.Ua.Machinery` | OPC 40001-1 Basic Building Blocks 1.04.1 | | `Opc.Ua.Machinery.ProcessValues` | OPC 40001-2 Process Values 1.00.0 | | `Opc.Ua.Machinery.Jobs` | OPC 40001-3 Job Management 1.0.1 | | `Opc.Ua.Machinery.Energy` | OPC 40001-4 Energy 1.00 | | `Opc.Ua.Machinery.Result` | OPC 40001-101 Result Transfer 1.01.0 | | `Opc.Ua.Machinery.Server` | `AddMachinery()` / `ConfigureMachinery(...)`, fluent machine builder, server-driven state machines, process values, job management over the shared ISA-95 V2 binder, energy, result management incl. `GenerateFileForRead` | | `Opc.Ua.Machinery.Client` | machine discovery, identification, state observation, process values, job and result access | OPC 40001-101 `ResultTransferType` redeclares `GenerateFileForRead` with its own arguments; the generator fix for such overrides, merged with #4577, is what makes it appear on the `ResultTransfer` instances. All NodeSets are byte-identical to `UA-Nodeset/latest`. Each model carries a pinned `Model/*.NodeIds.csv` the generator validates, next to the unmodified upstream table; `tools/nodesets/derive-identifier-table.py` derives the former from the latter. ## Changes to existing code - **IA moves out of Robotics.** Machinery needs IA as well (OPC 40001-1 types `Stacklight` with `BasicStacklightType`), and two assemblies generating the same model under the same prefix collide at any consumer referencing both. The NodeSet moves verbatim, so no generated type changes; the prefix stays `Opc.Ua.IA`. Source-compatible, but IA types now live in `Opc.Ua.IA.dll` rather than `Opc.Ua.Robotics.dll` — binary-breaking for consumers of the Robotics package. - **`samples/OpenUsd/GeneratorServer`** drops its hand-reduced Machinery NodeSet copy and the script that produced it (a workaround for the generator defect fixed by #4577) and references `Opc.Ua.Machinery` instead. - `README.md` and `docs/README.md` list the new models; the README also corrects the Industrial Automation entry (Part 200, not OPC 40001-1). ## Review follow-ups Separate commits after the docs/samples commit, so the reviewed state stays comparable. Each fix comes with a test that fails without it. - Copilot review: a transition is committed only while the state machine is still in its source state; optional Jobs/Result namespaces the server does not load are reported as absent, as documented; resources of registered machines (result transfer, job-management change pumps) are released with the node manager (`DisposeMachineryResourcesAsync` for a custom DI manager); `NodeId`/`LocalizedText` use their null sentinels instead of `Nullable<T>`. - Own review with the rubric in `.github/copilot-instructions.md`: a failed browse call propagates from the client instead of reading as "no children"; the predefined result metadata compares `CreationTime` against the `DateTimeUtc` sentinels (the `DateTime` conversion shifted `DateTime.MaxValue` by the host's UTC offset); process values below `Monitoring` are found; a second metering point named `Main` is rejected; the zero-point event is reported when the handler throws; smaller state-sharing and documentation corrections. ## Testing - `tests/Opc.Ua.Machinery.Tests`: 162 tests on net8 and net10 and with the netstandard2.1 libraries; the integration tests connect a real client session over `opc.tcp` to a hosted server. - With IA extracted: Robotics 636, OpenUsd 921, DI 433 and SourceGeneration 263 tests pass. - `UA.slnx` builds for net472, net48, netstandard2.0/2.1 and net8/9/10 with SDK 10.0.401 and no warnings. - Changed-line coverage of this layer (`check-coverage.ps1`): 91.68 % (6059 of 6609 changed lines, against `master`). - Fork CI, full PR matrix incl. macOS, on the current master: green, all 184 jobs ([run 36582685653](https://github.com/biancode/UA-.NETStandard/actions/runs/36582685653)). CodeQL: green ([run 36582689589](https://github.com/biancode/UA-.NETStandard/actions/runs/36582689589)). - Beyond the in-repo tests the implementation has been validated end to end against a separate, non-public OPC UA client and server. ## Reviewing Commits are ordered so each builds: IA extraction → identifier-table tool → ECM/PA-DIM → Machinery models → server → client → tests → docs/samples → GeneratorServer sample → review follow-ups. The model commits are large only because of the NodeSets and identifier tables; the hand-written code starts at the server commit. --------- Co-authored-by: Marc Schier <marcschier@users.noreply.github.com>	2026-09-29 19:59:34 +02:00