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Wolfgang Colsman 716858aa7d Source generator: option to emit exactly the nodes of a NodeSet2 (#4797)
# Description

For a NodeSet2 input the generator built the predefined nodes from the
merged instance hierarchy. A subtype therefore got a copy of every
Mandatory InstanceDeclaration of its supertypes as a new child node,
with
a NodeId the NodeSet2 never assigned (the supertype's numeric identifier
in the subtype's namespace, or a string identifier derived from the path
when the supertype comes from a referenced assembly). A DeviceType
subtype got eight such children from DI's DeviceType, so the address
space
a server loads from the generated code differs from the NodeSet2 it was
generated from.

ModelSourceGeneratorEmitNodeSetNodesOnly (GeneratorOptions
.EmitNodeSetNodesOnly), off by default, makes the predefined nodes of a
NodeSet2 input exactly the nodes the NodeSet2 declares: a child the
generator derives from a supertype or type definition is not added to a
predefined node. The typed state classes are unchanged and still reach
inherited members through the state classes of their supertypes, and the
CreateInstanceOf* factories still create every Mandatory child of the
type. ModelDesign inputs are not affected. IModelDesign.IsSourceNodeSet
tells the generator whether the target model was read from a NodeSet2.

A test in Opc.Ua.Di.Tests generates a DI-style NodeSet2 with the option
on, exports the generated predefined nodes as a NodeSet2 and compares it
with the input, node for node and reference for reference.

## Related Issues

None.

## Checklist

- [x] 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.
- [x] 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.
- [x] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [x] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Marc Schier <marcschier@users.noreply.github.com>
2026-10-16 12:38:19 +02:00

233 lines
10 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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* 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.
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* 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:
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* ======================================================================*/
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>
/// Emits only typed variable accessors and placeholder enumerators over client proxies
/// supplied by a referenced model assembly. Disabled by default.
/// </summary>
public bool ClientAccessorsOnly { get; set; }
/// <summary>
/// Overrides the namespace of client accessor extensions. Defaults to the model prefix plus Client.
/// </summary>
public string? ClientAccessorNamespace { get; set; }
/// <summary>
/// Overrides the partial extension class name. Defaults to the model name plus ClientMembers.
/// </summary>
public string? ClientAccessorClassName { 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>
/// When set to <c>true</c>, the predefined nodes generated for a
/// NodeSet2 input are exactly the nodes the NodeSet2 declares. A
/// subtype in the NodeSet2 does not get copies of the Mandatory
/// InstanceDeclarations of its supertypes, and an instance does not
/// get children its NodeSet2 does not declare or references to them,
/// so the address space holds no node with an identifier the NodeSet2
/// does not assign.
/// <para>
/// The typed state classes and the <c>CreateInstanceOf*</c> factories
/// are not affected: inherited members still resolve through the
/// state classes of the supertypes, and an instance created at run
/// time still gets every Mandatory descendant of its type.
/// </para>
/// <para>
/// Off by default. A ModelDesign input is not affected.
/// </para>
/// </summary>
public bool EmitNodeSetNodesOnly { 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;
}
}