AsmResolver.DotNet.PortablePdbs

[Windows10CE]

Some information for my future self:
The documented custom debug records are incomplete, Roslyn at least implements more than listed.
Official: https://github.com/dotnet/runtime/blob/main/docs/design/specs/PortablePdb-Metadata.md#language-specific-custom-debug-information-records
Roslyn kinds: https://github.com/dotnet/roslyn/blob/main/src/Dependencies/CodeAnalysis.Debugging/PortableCustomDebugInfoKinds.cs
Diff: name, kind, parent type, blob format, usage

• PrimaryConstructorInformationBlob, 9D40ACE1-C703-4D0E-BF41-7243060A8FB5, Method, no blob, used to identity a method as a primary constructor
• TupleElementNames, ED9FDF71-8879-4747-8ED3-FE5EDE3CE710, LocalVariable (more?), series of null terminated utf8 strings, contains the names of tuple elements
• AsyncMethodSteppingInformationBlob, 54FD2AC5-E925-401A-9C2A-F94F171072F8, Method, catch handler offset and a series of yield/resume offsets, presumably used to help step over awaits in non-runtime async methods
• EncStateMachineStateMap, 8B78CD68-2EDE-420B-980B-E15884B8AAA3, Method, series of syntax offsets for state machine states, presumably used to handle something about state machines in EnC scenarios

F# probably also has kinds not listed here, look into those F# has no additional kinds it only uses like 3 of the ones that Roslyn also uses

[github-actions]

Test Results

	Total	Skipped	Passed	Failed
Unique	2123	5 💤	2121 ✅	2 ❌
Total	4246	34 💤	4208 ✅	4 ❌

Failing runs

❌ AsmResolver.DotNet.Tests.Builder.TokenMappingTest.NewStandaloneSignature

Class Name: AsmResolver.DotNet.Tests.Builder.TokenMappingTest | Method Name: NewStandaloneSignature | This test is always failing.

Failures present in

• test-results/test-results-ubuntu-24.04-x64/test/AsmResolver.DotNet.Tests/TestResults/_runnervmh13bl_2026-01-06_06_36_33.trx
• test-results/test-results-windows-2025-x64/test/AsmResolver.DotNet.Tests/TestResults/runneradmin_runnervm2nm03_2026-01-06_06_36_33.trx

❌ test-results/test-results-windows-2025-x64/test/AsmResolver.DotNet.Tests/TestResults/runneradmin_runnervm2nm03_2026-01-06_06_36_33.trx AsmResolver.DotNet.Tests.Builder.TokenMappingTest.NewStandaloneSignature

Took 00:00:00.0015518

Failure also present in

• test-results/test-results-ubuntu-24.04-x64/test/AsmResolver.DotNet.Tests/TestResults/_runnervmh13bl_2026-01-06_06_36_33.trx

Exception message:

System.InvalidOperationException : Operation is not valid due to the current state of the object.

Stack trace:

   at System.Exception.CanSetRemoteStackTrace()
   at AsmResolver.DiagnosticBag.RegisterException(Exception exception) in /_/src/AsmResolver/DiagnosticBag.cs:line 46
   at AsmResolver.DotNet.Builder.ManagedPEImageBuilder.CreateImage(ModuleDefinition module) in /_/src/AsmResolver.DotNet/Builder/ManagedPEImageBuilder.cs:line 139
   at AsmResolver.DotNet.Tests.Builder.TokenMappingTest.NewStandaloneSignature() in /_/test/AsmResolver.DotNet.Tests/Builder/TokenMappingTest.cs:line 228
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

❌ AsmResolver.DotNet.Tests.Builder.TokenPreservation.TypeDefTokenPreservationTest.PreserveTypeDefsAfterInsertingNewModuleTypeShouldThrow

Class Name: AsmResolver.DotNet.Tests.Builder.TokenPreservation.TypeDefTokenPreservationTest | Method Name: PreserveTypeDefsAfterInsertingNewModuleTypeShouldThrow | This test is always failing.

Failures present in

• test-results/test-results-ubuntu-24.04-x64/test/AsmResolver.DotNet.Tests/TestResults/_runnervmh13bl_2026-01-06_06_36_33.trx
• test-results/test-results-windows-2025-x64/test/AsmResolver.DotNet.Tests/TestResults/runneradmin_runnervm2nm03_2026-01-06_06_36_33.trx

❌ test-results/test-results-windows-2025-x64/test/AsmResolver.DotNet.Tests/TestResults/runneradmin_runnervm2nm03_2026-01-06_06_36_33.trx AsmResolver.DotNet.Tests.Builder.TokenPreservation.TypeDefTokenPreservationTest.PreserveTypeDefsAfterInsertingNewModuleTypeShouldThrow

Took 00:00:00.0033109

Failure also present in

• test-results/test-results-ubuntu-24.04-x64/test/AsmResolver.DotNet.Tests/TestResults/_runnervmh13bl_2026-01-06_06_36_33.trx

Exception message:

Assert.Throws() Failure: Exception type was not an exact match
Expected: typeof(System.AggregateException)
Actual:   typeof(System.InvalidOperationException)
---- System.InvalidOperationException : Operation is not valid due to the current state of the object.

Stack trace:

   at AsmResolver.DotNet.Tests.Builder.TokenPreservation.TypeDefTokenPreservationTest.PreserveTypeDefsAfterInsertingNewModuleTypeShouldThrow() in /_/test/AsmResolver.DotNet.Tests/Builder/TokenPreservation/TypeDefTokenPreservationTest.cs:line 94
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
----- Inner Stack Trace -----
   at System.Exception.CanSetRemoteStackTrace()
   at AsmResolver.DiagnosticBag.RegisterException(Exception exception) in /_/src/AsmResolver/DiagnosticBag.cs:line 46
   at AsmResolver.DotNet.Builder.ManagedPEImageBuilder.CreateImage(ModuleDefinition module) in /_/src/AsmResolver.DotNet/Builder/ManagedPEImageBuilder.cs:line 139
   at AsmResolver.DotNet.Tests.Builder.TokenPreservation.TokenPreservationTestBase.RebuildAndReloadModule(ModuleDefinition module, MetadataBuilderFlags builderFlags, DiagnosticBag bag) in /_/test/AsmResolver.DotNet.Tests/Builder/TokenPreservation/TokenPreservationTestBase.cs:line 42
   at AsmResolver.DotNet.Tests.Builder.TokenPreservation.TokenPreservationTestBase.RebuildAndReloadModule(ModuleDefinition module, MetadataBuilderFlags builderFlags) in /_/test/AsmResolver.DotNet.Tests/Builder/TokenPreservation/TokenPreservationTestBase.cs:line 35
   at AsmResolver.DotNet.Tests.Builder.TokenPreservation.TypeDefTokenPreservationTest.<>c__DisplayClass4_0.<PreserveTypeDefsAfterInsertingNewModuleTypeShouldThrow>b__0() in /_/test/AsmResolver.DotNet.Tests/Builder/TokenPreservation/TypeDefTokenPreservationTest.cs:line 94