Addressing issue #781 #782
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jonpryor
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Context: #9043 Changes: jbevain/cecil@0.11.4...0.11.5 * jbevain/cecil@8c123e1: Bump to 0.11.5 * jbevain/cecil@870ce3e: Fix RVA field alignment (jbevain/cecil#888) * jbevain/cecil@4ad9c0f: Fix that method resolution would consider all function-pointers to be the same (jbevain/cecil#885) * jbevain/cecil@cc48622: Fix a StackOverflowException reading windows runtime assemblies. (jbevain/cecil#879) * jbevain/cecil@341fb14: Treat instance and static methods as different methods during resolution (jbevain/cecil#882) * jbevain/cecil@e052ab5: Address issue #873 (jbevain/cecil#874) * jbevain/cecil@92f32da: Add `MethodImplAttributes.AggressiveOptimization` (jbevain/cecil#855) * jbevain/cecil@c4cfe16: Fix a race condition between certain Has properties and their collection property. (jbevain/cecil#843) * jbevain/cecil@65a2912: Add more style configuration (jbevain/cecil#854) * jbevain/cecil@9eb00e4: ILProcessor should also update custom debug info (jbevain/cecil#867) * jbevain/cecil@7d36386: Fix corrupted debug header directory entry when writing multiple such entries. (jbevain/cecil#869) * jbevain/cecil@6f94613: InvariantCulture for operand to string conversion in Instruction.ToString() (jbevain/cecil#870) * jbevain/cecil@42b9ef1: Add support for generic attributes (jbevain/cecil#871) * jbevain/cecil@49b1c52: Add `Unmanaged` calling convention (jbevain/cecil#852) * jbevain/cecil@2c68927: Fix mixed module ReadSymbols() (jbevain/cecil#851) * jbevain/cecil@f7b64f7: Fix custom attribute with enum on generic type (jbevain/cecil#827) * jbevain/cecil@79b43e8: Fix deterministic MVID and add PdbChecksum (jbevain/cecil#810) * jbevain/cecil@8b593d5: Harden debug scope update logic (jbevain/cecil#824) * jbevain/cecil@a56b5bd: FieldRVA alignment (jbevain/cecil#817) * jbevain/cecil@75372c7: Switch to netcoreapp3.1 for tests (jbevain/cecil#823) * jbevain/cecil@5f69faa: Add support for generating the method and generic method comment signature with nested types (jbevain/cecil#801) * jbevain/cecil@a0a6ce4: Addressing issue #781 (jbevain/cecil#782) * jbevain/cecil@2f1077d: Update the version of Microsoft.NETFramework.ReferenceAssemblies.net40 (jbevain/cecil#787) * jbevain/cecil@ede17f9: Fix handling of empty string constants (jbevain/cecil#776) #9043 stops building API-34 and makes API-35 stable, and in attempting to do so encounters this error when running all of the in-tree Windows smoke tests on CI: D:\a\_work\1\s\bin\Release\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.0-ci.pr.gh9043.6\tools\Xamarin.Android.Bindings.JavaDependencyVerification.targets(22,5): error MSB4062: The "Xamarin.Android.Tasks.GetMicrosoftNuGetPackagesMap" task could not be loaded from the assembly D:\a\_work\1\s\bin\Release\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.0-ci.pr.gh9043.6\tools\Xamarin.Android.Build.Tasks.dll. Could not load file or assembly 'Mono.Cecil, Version=0.11.4.0, Culture=neutral, PublicKeyToken=50cebf1cceb9d05e'. The system cannot find the file specified. Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [D:\a\_work\1\a\TestRelease\07-02_16.40.15\temp\DotNetBuildandroid-armFalseFalseFalse\UnnamedProject.csproj] This appears to be caused by the fact that previously we: 1. Build `Microsoft.Android.Sdk.ILLink.csproj`, which pulls in [Microsoft.NET.ILLink/9.0.0-preview.6.24319.11][0], which pulls in [Microsoft.DotNet.Cecil/0.11.4-alpha.24313.1][1], which contains `Mono.Cecil.dll` versioned as 0.11.5.0. (Yes, it's "odd" that `Microsoft.DotNet.Cecil/0.11.4*` would contain a Cecil versioned as 0.11.5, but that's what it has!) 2. Build the rest of dotnet/android with the [Mono.Cecil/0.11.4][2] package. 3. The Mono.Cecil/0.11.4 package "wins" and ends up in the output directory and the sdk pack. So long as the `ILLink*`-related assemblies don't use any Mono.Cecil/0.11.5 APIs, this works, however it is risky because we don't know exactly what API `ILLink*` uses. #9043 appears to change the build order such that Mono.Cecil/0.11.5 now "wins" and is in the output directory. This causes the above MSB4062 assembly load error. We could try to fix the ordering and make Mono.Cecil/0.11.4 "win", but this leaves us vulnerable to missing some API that `ILLink*` needs. As such, it's better that we update the rest of dotnet/android to use the `0.11.5` version of `Mono.Cecil`. This update breaks the `LinkerTests.FixAbstractMethodsStep_Explicit()` unit test. Specifically, this logic now returns `null` instead of being able to be resolved: new MethodReference (iface_method.Name, void_type, iface) .Resolve (); It feels like this makes sense: a method name and return type doesn't seem like it would be enough to resolve, as parameters are not considered. The fix is simply to use the existing `MethodDefinition` as the `MethodReference`, there is no reason to create a new one. This change fixes the test. [0]: https://dev.azure.com/dnceng/public/_artifacts/feed/dotnet9-transport/NuGet/Microsoft.NET.ILLink/overview/9.0.0-preview.7.24328.10 [1]: https://dev.azure.com/dnceng/public/_artifacts/feed/dotnet9-transport/NuGet/Microsoft.DotNet.Cecil/overview/0.11.4-alpha.24313.1 [2]: https://www.nuget.org/packages/Mono.Cecil/0.11.4
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Fix the previous fix by not returning a default end-of-method value in this case, by making the end-of-method a proper stop. This is possibly slightly bogus even so, but it's an rare edge case from not terribly well formed -- but executable -- input.