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feat(host): F8b RoslynVirtualTagEvaluator — production virtual-tag eval

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RoslynVirtualTagEvaluator wraps Core.Scripting.ScriptEvaluator + Core
.VirtualTags.VirtualTagContext into a single-tag IVirtualTagEvaluator
adapter. Caches the compiled ScriptEvaluator per unique expression so
the second-and-onwards Evaluate is an in-process method call against the
dependency dictionary. Compile/sandbox/runtime errors all surface as
VirtualTagEvalResult.Failure rather than propagating exceptions through
the VirtualTagActor message loop.

Single-tag scope: cross-tag ctx.SetVirtualTag writes are dropped + logged
because fan-out between actors is owned by DependencyMuxActor. Cycle
detection + cascade ordering stay in Core.VirtualTags.VirtualTagEngine
where they belong (loaded fleet-wide); this adapter keeps the actor
message handler simple.

Host adds Core.Scripting + Core.VirtualTags project refs, plus a
TargetWarningsAsErrors NU1608 suppression — Microsoft.CodeAnalysis.CSharp
.Scripting 4.12.0 pins Common to 4.12.0 but ASP.NET Core transitively
brings Microsoft.CodeAnalysis.Common 5.0.0; the surface we use is stable
across the drift (verified by Core.Scripting.Tests).

Program.cs binds RoslynVirtualTagEvaluator → IVirtualTagEvaluator on
driver-role hosts, replacing the F8-default NullVirtualTagEvaluator so
VirtualTagActor evaluates real user scripts at runtime.

6 new adapter tests cover: simple expression sums, cache reuse across
calls, compile-error denial, runtime-throw denial, empty-expression
denial, post-dispose denial. Host.IntegrationTests now 10/10 green.

Closes #79. F9b + #107 next.
This commit is contained in:
Joseph Doherty
2026-05-26 10:55:56 -04:00
parent 607dc51dec
commit 219d10a22d
4 changed files with 225 additions and 0 deletions
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8
src/Server/ZB.MOM.WW.OtOpcUa.Host/ZB.MOM.WW.OtOpcUa.Host.csproj
View File

@@ -5,6 +5,12 @@
<AssemblyName>OtOpcUa.Host</AssemblyName>
<UserSecretsId>zb-mom-ww-otopcua-host</UserSecretsId>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<!-- Microsoft.CodeAnalysis.CSharp.Scripting (4.12.0, pulled in via Core.Scripting for F8b
user-script compilation) requires CodeAnalysis.Common 4.12.0 exactly, but ASP.NET
Core's transitive Microsoft.CodeAnalysis.CSharp 5.0.0 wins resolution. Suppress
NU1608 — the surface we use from Scripting (ScriptEvaluator + RoslynScriptHost) is
stable across the version drift; verified by Core.Scripting.Tests. -->
<NoWarn>$(NoWarn);NU1608</NoWarn>
</PropertyGroup>
<ItemGroup>
@@ -24,6 +30,8 @@
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Cluster\ZB.MOM.WW.OtOpcUa.Cluster.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Configuration\ZB.MOM.WW.OtOpcUa.Configuration.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core\ZB.MOM.WW.OtOpcUa.Core.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.Scripting\ZB.MOM.WW.OtOpcUa.Core.Scripting.csproj"/>
<ProjectReference Include="..\..\Core\ZB.MOM.WW.OtOpcUa.Core.VirtualTags\ZB.MOM.WW.OtOpcUa.Core.VirtualTags.csproj"/>
<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.Security\ZB.MOM.WW.OtOpcUa.Security.csproj"/>
<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.ControlPlane\ZB.MOM.WW.OtOpcUa.ControlPlane.csproj"/>
<ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.Runtime\ZB.MOM.WW.OtOpcUa.Runtime.csproj"/>