Use directory-scoped ALCs to load analyzers in .NET Core #55098

RikkiGibson · 2021-07-23T23:26:39Z

Resolves #52177

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

…AssemblyLoader.Core.cs

AraHaan · 2021-07-27T23:18:38Z

So when this gets merged will this by chance make it in .NET 6 in time?

RikkiGibson · 2021-07-27T23:22:37Z

Yes but probably not till RC1.

AraHaan · 2021-07-27T23:31:27Z

Alright, I get the daily RC1 builds so hopefully it lands on those soon.

jaredpar

The loader should only be loading analyzer assemblies that are explicitly passed to the compiler.

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

src/Compilers/Test/Resources/Core/TestResources.cs

Co-authored-by: Jared Parsons <jaredpparsons@gmail.com>

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

src/Compilers/Core/CodeAnalysisTest/Analyzers/AnalyzerFileReferenceTests.cs

src/Compilers/Test/Core/AssemblyLoadTestFixture.cs

src/Compilers/Core/CodeAnalysisTest/AssemblyUtilitiesTests.cs

src/Compilers/Core/Portable/DiagnosticAnalyzer/AnalyzerAssemblyLoader.cs

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

Co-authored-by: Jared Parsons <jaredpparsons@gmail.com>

src/Compilers/Core/Portable/DiagnosticAnalyzer/AnalyzerAssemblyLoader.cs

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

src/Compilers/Core/Portable/DiagnosticAnalyzer/AnalyzerAssemblyLoader.cs

src/VisualStudio/Core/Test.Next/Remote/SnapshotSerializationTests.cs

src/Compilers/Test/Core/AssemblyLoadTestFixture.cs

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

src/Compilers/Core/CodeAnalysisTest/DefaultAnalyzerAssemblyLoaderTests.cs

jaredpar · 2021-08-18T23:54:53Z

src/Compilers/Core/CodeAnalysisTest/DefaultAnalyzerAssemblyLoaderTests.cs

+            analyzer.GetType().GetMethod("Method")!.Invoke(analyzer, new object[] { sb });
+            Assert.Equal(ExecutionConditionUtil.IsCoreClr ? "1" : "42", sb.ToString());
+        }
+


One test I think is missing is firing up two different DefaultAnalyzerAssemblyLoader and verifying they can load different assemblies that have the same simple name. That is effectively what the compiler server is going to be doing.

Does this comment describe a different scenario than what is covered in AssemblyLoading_MultipleVersions (where 'Delta1' and 'Delta2' have the same simple name)?

Yes. In that test you're creating one DefaultAnalyzerAssemblyLoader and loading two different versions of Delta into it and verifying that one fails. I'm saying create two DefaultAnalyzerAssemblyLoader instances and load Delta1 into the first and Delta2 into the second. That is effectively how long lived hosts on .NET Core will work (new loader per compilation) and want to verify that it's working and that the correct Assembly is loaded into each context

Actually one other test you need is loading Delta1 and Delta2 into the same DefaultAnalyzerAssemblyLoader but from different directories. That should work just fine now. That is essentially our core analyzers with conflicting dependencies case.

We have AssemblyLoading_MultipleVersions to test loading different versions of the same assembly into one loader. I added a test AssemblyLoading_MultipleVersions_MultipleLoaders to do the same but with each version in a different loader.

…AssemblyLoader.Core.cs Co-authored-by: Jared Parsons <jaredpparsons@gmail.com>

jaredpar

Minor feedback.

jaredpar · 2021-08-20T16:18:38Z

src/Compilers/Core/CodeAnalysisTest/DefaultAnalyzerAssemblyLoaderTests.cs

+            analyzer.GetType().GetMethod("Method")!.Invoke(analyzer, new object[] { sb });
+            Assert.Equal(ExecutionConditionUtil.IsCoreClr ? "1" : "42", sb.ToString());
+        }
+


Yes. In that test you're creating one DefaultAnalyzerAssemblyLoader and loading two different versions of Delta into it and verifying that one fails. I'm saying create two DefaultAnalyzerAssemblyLoader instances and load Delta1 into the first and Delta2 into the second. That is effectively how long lived hosts on .NET Core will work (new loader per compilation) and want to verify that it's working and that the correct Assembly is loaded into each context

jaredpar · 2021-08-20T16:21:11Z

src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzerAssemblyLoader.Core.cs

+            return loadContext.LoadFromAssemblyName(name);
+        }
+
+        internal static class TestAccessor


Why did you opt to have a TestAccessor here vs. just adding an internal method on DefaultAnalyzerAssemblyLoader?

I wanted people to feel bad about ever accessing this in the implementation. I was attempting to imitate TestAccessor patterns in ChangedText.cs, SegmentedArray`1.cs, etc.

src/Compilers/Core/Portable/DiagnosticAnalyzer/AnalyzerAssemblyLoader.cs

chsienki · 2021-08-23T17:32:23Z

src/Compilers/Test/Core/AssemblyLoadTestFixture.cs

+
+namespace Microsoft.CodeAnalysis.Test.Utilities
+{
+    public sealed class AssemblyLoadTestFixture : IDisposable


This is a really nice change!

chsienki

Couple nits, but otherwise looks great!

AraHaan · 2021-08-23T22:45:21Z

So basically this did not make it in time for the .NET 6 rc.1 daily builds?

jaredpar · 2021-08-24T03:52:38Z

So basically this did not make it in time for the .NET 6 rc.1 daily builds?

This will make 17.0 Preview 4 which should be in the .NET 6 SDK RC1 builds.

Use directory-scoped ALCs to load analyzers in .NET Core

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RikkiGibson requested a review from a team as a code owner July 23, 2021 23:26

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…AssemblyLoader.Core.cs

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Analyzer host process fails to load analyzers correctly when building in parallel #52177

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RikkiGibson and others added 4 commits August 2, 2021 17:06

Compile assembly load test resources during test run

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Add AnalyzerAssemblyLoader.ShouldLoad

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Use new test harness

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Apply suggestions from code review

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Co-authored-by: Jared Parsons <jaredpparsons@gmail.com>

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RikkiGibson and others added 2 commits August 5, 2021 11:27

Update src/Compilers/Test/Core/AssemblyLoadTestFixture.cs

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Co-authored-by: Jared Parsons <jaredpparsons@gmail.com>

Fix shadow copy loader

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RikkiGibson requested a review from a team as a code owner August 5, 2021 18:27

RikkiGibson added 3 commits August 5, 2021 12:02

Fix formatting

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Perform shadow copy on load

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_testResources -> _testFixture

7e83c50

genlu mentioned this pull request Aug 9, 2021

ArgumentException when running diagnostic service on .net core #46687

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genlu mentioned this pull request Aug 10, 2021

Try to fix the analyzer path when loading in OOP #55520

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RikkiGibson added 2 commits August 11, 2021 14:44

simplify

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simplify

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RikkiGibson added 4 commits August 18, 2021 11:53

Merge branch 'main' of github.com:dotnet/roslyn into alc

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Fix tests

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sort simple names

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Move AnalyzerWithDependency to fixture

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jaredpar reviewed Aug 18, 2021

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RikkiGibson and others added 7 commits August 18, 2021 16:57

Don't worry about warnings

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Update src/Compilers/Core/Portable/DiagnosticAnalyzer/DefaultAnalyzer…

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…AssemblyLoader.Core.cs Co-authored-by: Jared Parsons <jaredpparsons@gmail.com>

more

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Fix test

703a261

Check ALCs content in test

365ff28

Check more accurate assembly data

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Only test native dependency in windows coreclr

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Add suggested test

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Doc comment feedback

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RikkiGibson enabled auto-merge (squash) August 23, 2021 18:36

RikkiGibson merged commit 99f45b7 into dotnet:main Aug 23, 2021

ghost added this to the Next milestone Aug 23, 2021

RikkiGibson deleted the alc branch August 23, 2021 19:04

CyrusNajmabadi pushed a commit to CyrusNajmabadi/roslyn that referenced this pull request Aug 24, 2021

Use directory-scoped ALCs to load analyzers in .NET Core (dotnet#55098)

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dibarbet modified the milestones: Next, 17.0.P4 Aug 31, 2021

JoeRobich mentioned this pull request Sep 11, 2021

Update the vnext branch OmniSharp/omnisharp-roslyn#2223

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PathogenDavid mentioned this pull request Sep 22, 2021

RC1 regression: dependencies no longer work correctly in source generators across <ProjectReference> #56442

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andrei-epure-sonarsource mentioned this pull request Nov 3, 2021

Calling the compiler with analyzers which reference different versions of the same assembly results in FileLoadException #41421

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Use directory-scoped ALCs to load analyzers in .NET Core #55098

Use directory-scoped ALCs to load analyzers in .NET Core #55098

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Use directory-scoped ALCs to load analyzers in .NET Core #55098

Use directory-scoped ALCs to load analyzers in .NET Core #55098

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