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Marc Schier 0357380335 Source generator: typed NodeSet method signatures and referenced model accessors (#4124)
**Stack 2/5** — base #4123. Part of the #4096 split; see #4096 for the
overall picture.

> Review after #4123. The diff shown against `master` will include #4123
until that merges.

## What this is

Source generator only; no runtime library changes.

## Contents

- **Typed NodeSet method signatures.** A method imported from a NodeSet
now gets a typed signature. Methods that share a declared signature are
grouped onto one generated `MethodType`, named after its owner when the
plain name would collide, so two unrelated `Execute` methods no longer
share a class.
- **An override that keeps the signature it inherits keeps the
declaration it overrides.** Pointing `MethodDeclarationNode` at the
override itself made `MethodDeclarationId` self-referential. OPC 10000-4
lets a caller invoke a method with the NodeId of its declaration in the
ObjectType *or any supertype*, and `MethodState.MethodDeclarationId` is
what the server matches on, so `Call` stopped resolving and returned
`Bad_MethodInvalid` for every alarm subtype. An override that genuinely
changes its signature still becomes its own declaration.
- **`StateNumbers` / `TransitionNumbers` were emitted empty for every
NodeSet-sourced model**, because such children arrive as
`VariableDesign` rather than `PropertyDesign` and were filtered out. Any
companion model built from a NodeSet was writing `StateNumber = 0` on
the wire — a Part 16 defect well beyond the models in this stack. The
ModelDesign path is unchanged.
- **Referenced models can contribute fluent accessors**, carried by a
model dependency payload so a downstream model can extend an upstream
one.

## Notes for the reviewer

- `tests/Opc.Ua.SourceGeneration.Tests` is left at its `master` content
here. Its new vendor-subtype test uses the Robotics NodeSet as its
fixture, so it can only land with the Robotics change at the top of the
stack (5/5).
- `PumpInstanceNodeIdRegressionTests` gains six
`InputArguments`/`OutputArguments` entries for argument-less standard
condition methods. Typed method signatures materialise those properties
from the `ConditionType` declaration even where the method takes none.
That is a real deviation, pinned rather than hidden so it stays visible;
it is worth a follow-up.

## Validation

`dotnet build UA.slnx` — 0 errors.

| Suite | Result |
| --- | --- |
| Opc.Ua.SourceGeneration.Core.Tests | 3739 / 0 |
| Opc.Ua.SourceGeneration.Tests | 81 / 0 |
| Opc.Ua.Di.Tests | 304 / 0 |
| Opc.Ua.History.Tests | 506 / 0 |
| Opc.Ua.Gds.Tests | 1095 / 0 |

History and GDS are listed because they are what the method-declaration
fix above is load-bearing for: without it they fail with 10 and 370
errors respectively.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8cbb8cd0-f0cb-4ab0-bea2-6202fbf69485
2026-08-01 07:55:57 +02:00

197 lines
8.7 KiB
C#

/* ========================================================================
* Copyright (c) 2005-2025 The OPC Foundation, Inc. All rights reserved.
*
* OPC Foundation MIT License 1.00
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
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* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* The complete license agreement can be found here:
* http://opcfoundation.org/License/MIT/1.00/
* ======================================================================*/
using System.Collections.Generic;
using System.Threading;
namespace Opc.Ua.SourceGeneration
{
/// <summary>
/// Generator options
/// </summary>
public sealed class GeneratorOptions
{
/// <summary>
/// Optimize generated code for compile speed.
/// </summary>
public bool OptimizeForCompileSpeed { get; set; }
/// <summary>
/// Exclusions to apply on the input
/// </summary>
public IReadOnlyList<string> Exclusions { get; set; } = [];
/// <summary>
/// Generation should be cancelled
/// </summary>
public CancellationToken Cancellation { get; set; }
/// <summary>
/// Write utf8 string literals when needed
/// </summary>
public bool UseUtf8StringLiterals { get; set; } = true;
/// <summary>
/// When set to <c>true</c>, the
/// <see cref="ObjectTypeProxyGenerator"/> is suppressed and no
/// <c>*TypeClient</c> proxy classes are emitted. Off by default —
/// proxies are emitted for every <c>ObjectType</c> in the model
/// alongside the standard model output.
/// </summary>
public bool OmitObjectTypeProxies { get; set; }
/// <summary>
/// When set to <c>true</c>, the
/// <see cref="StateMachineIdsGenerator"/> is suppressed and no
/// <c>{TypeName}Ids</c> classes (nested <c>StateIds</c> /
/// <c>StateNumbers</c> / <c>TransitionIds</c> /
/// <c>TransitionNumbers</c>) are emitted. Off by default — IDs
/// are emitted for every concrete <c>FiniteStateMachineType</c>
/// subtype declared in the model.
/// </summary>
public bool OmitStateMachineIds { get; set; }
/// <summary>
/// When set to <c>true</c>, suppresses emission of the
/// per-ObjectType <c>IComponentAccessor&lt;TState&gt;</c> /
/// <c>IPropertyAccessor&lt;TState&gt;</c> typed-accessor
/// extension classes by <see cref="FluentBuilderGenerator"/>.
/// Defaults to <c>false</c> — accessors are emitted unless
/// explicitly suppressed. Model-only assemblies that don't
/// reference <c>Opc.Ua.Server</c> must set this to <c>true</c>
/// because the emitted method bodies call into server-side
/// fluent builders even though the
/// <see cref="IComponentAccessor{TState}"/> /
/// <see cref="IPropertyAccessor{TState}"/> marker interfaces
/// themselves now live in <c>Opc.Ua.Types</c>.
/// </summary>
public bool OmitFluentApi { get; set; }
/// <summary>
/// When set to <c>true</c>, generation is limited to the
/// per-ObjectType typed fluent accessor extension classes emitted
/// by <see cref="FluentBuilderGenerator"/>. The target model must
/// already be supplied by a referenced assembly under the same
/// model URI and C# prefix so the emitted accessors can reference
/// that assembly's state types. Its model dependency payload must
/// explicitly declare that the producer omitted fluent accessors;
/// missing capability metadata and producers that already emitted
/// accessors are rejected.
/// </summary>
public bool FluentAccessorsOnly { get; set; }
/// <summary>
/// Optional override for the C# namespace used by classes emitted
/// by the <see cref="ObjectTypeProxyGenerator"/>. When unset,
/// the model's target namespace prefix is used.
/// </summary>
public string ObjectTypeProxyNamespace { get; set; }
/// <summary>
/// When set to <c>true</c>, the <see cref="NodeStateGenerator"/>
/// uses the modelling rules from the referenced type definition
/// unconditionally, rather than the overridden rules on instance
/// definitions, for all structural code generation decisions
/// (child inclusion, optional vs mandatory classification),
/// for factory-method child emission (mandatory list versus
/// on-demand <c>CreateOrReplace*</c> initialisation) and for
/// the emitted runtime <c>ModellingRuleId</c>.
/// <para>
/// Off by default. When off, the generator still enforces OPC UA
/// modelling rule promotion semantics — instances may only
/// <em>promote</em> the type definition's rule:
/// <c>Optional → Mandatory</c>,
/// <c>OptionalPlaceholder → Mandatory | MandatoryPlaceholder</c>,
/// <c>MandatoryPlaceholder → Mandatory</c>.
/// Any demotion is silently rejected and the type definition's
/// rule is used instead.
/// </para>
/// </summary>
public bool UseTypeDefinitionModellingRules { get; set; }
/// <summary>
/// Maps an OPC UA namespace URI (key) to the C# namespace (value)
/// in which the corresponding source-generated <c>*TypeClient</c>
/// proxies live. Used by the
/// <see cref="ObjectTypeProxyGenerator"/> when a generated
/// proxy must derive from a base proxy that is defined in a
/// different (referenced) assembly.
/// </summary>
/// <remarks>
/// The standard mapping
/// <c>http://opcfoundation.org/UA/ -&gt; Opc.Ua.Client</c> is
/// always added by the generator and does not need to be
/// configured explicitly.
/// </remarks>
public IDictionary<string, string> ObjectTypeProxyExternalNamespaces { get; }
= new Dictionary<string, string>();
/// <summary>
/// Optional override for the C# namespace used by classes
/// emitted by the <see cref="EventRecordGenerator"/>. When
/// unset, the model's target namespace prefix is used.
/// </summary>
public string EventRecordNamespace { get; set; }
/// <summary>
/// Suppresses source-generated event record classes.
/// </summary>
public bool OmitEventRecords { get; set; }
/// <summary>
/// Maps an OPC UA namespace URI (key) to the C# namespace
/// (value) in which the corresponding source-generated
/// <c>*Record</c> classes live. Used by the
/// <see cref="EventRecordGenerator"/> when a record must
/// derive from a parent record defined in a different
/// (referenced) assembly.
/// </summary>
/// <remarks>
/// The standard mapping
/// <c>http://opcfoundation.org/UA/ -&gt; Opc.Ua.Client.Alarms</c>
/// is always added by the generator and does not need to be
/// configured explicitly.
/// </remarks>
public IDictionary<string, string> EventRecordExternalNamespaces { get; }
= new Dictionary<string, string>();
/// <summary>
/// When <c>false</c>, suppress the emission of the
/// <c>{prefix}.ModelDependencies.g.cs</c> and
/// <c>{prefix}.ModelSnapshot.g.cs</c> files. The consuming
/// generator decides whether emission is appropriate
/// (typically only for assemblies that will be referenced as
/// libraries). Default <c>true</c> preserves existing
/// behaviour for direct invokers of the Core API (tests, the
/// model-compiler CLI).
/// </summary>
public bool EmitDependencyMetadata { get; set; } = true;
}
}