Use core compiler on netfx hosts with toolset package#80631
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jjonescz merged 2 commits intodotnet:mainfrom Oct 24, 2025
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Use core compiler on netfx hosts with toolset package#80631jjonescz merged 2 commits intodotnet:mainfrom
jjonescz merged 2 commits intodotnet:mainfrom
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@RikkiGibson @333fred @jaredpar @dotnet/roslyn-compiler for reviews, thanks |
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| Even on netfx hosts we want to use netcore compiler to be consistent with SDK's behavior since .NET 10. | ||
| The opt out is also the same as in SDK - setting RoslynCompilerType=Framework. | ||
| --> | ||
| <_UseRoslynBridgeTask Condition="'$(MSBuildRuntimeType)' != 'Core' and '$(RoslynCompilerType)' != 'Framework'">true</_UseRoslynBridgeTask> |
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Is the user meant to be able to put <RoslynCompilerType>Framework</RoslynCompilerType> in their project, in addition to PackageReference to MS.Net.Compilers.Toolset, and expect the toolset compiler to run on framework?
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Yes. Although one needs to ensure it's put before the package props are imported (so putting inside Directory.Build.props would work; or manually before <Import Sdk> element; or just as /p: command-line arg, etc).
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LGTM, but, my brain starts melting when I try to actually understand msbuild code.
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* upstream/main: (332 commits) Cache lambdas in analyzer driver (dotnet#80759) Add information for NuGet package version 4.14 (dotnet#80870) Add missing search keywords to VB Advanced options page Fix IDE0031 false positive when preprocessor directives are used in if statements (dotnet#80878) Use core compiler on netfx hosts with toolset package (dotnet#80631) Make string concat assert more precise (dotnet#80619) Extensions: address some diagnostic quality issues (dotnet#80827) Add note on traversal order for bound nodes (dotnet#80872) Ensure that locals at the top level of a constructor have the same safe-context as parameters (dotnet#80807) Fix handling of SymbolDisplayCompilerInternalOptions.UseArityForGenericTypes option for non-native symbol implementations (dotnet#80826) Update src/Analyzers/CSharp/Tests/UseCollectionInitializer/UseCollectionInitializerTests.cs Add IsValidContainingStatement check to prevent collection initializers in using declarations Add back old DocumentSpan constructor (dotnet#80864) Add tests verifying pointer types in type parameters require unsafe context (dotnet#80776) Add regression test for Interlocked.Exchange with nullable types (dotnet#80796) Add regression test for ParseAttributeArgumentList with invalid input (fixes dotnet#8699) (dotnet#80705) Add regression test for compiler crash with syntax error in indexer declaration (dotnet#80772) Add runtime NullReferenceException validation to foreach null iteration tests (dotnet#80839) Update MicrosoftBuildTasksCoreVersionForMetrics to 17.11.48 (dotnet#80812) Mark CS4009 error as a "build only" error. (dotnet#80698) ...
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Needed due to dotnet/roslyn#80631.
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…81344) Follow up on #80631. Validation: - Broken here: https://dev.azure.com/devdiv/DevDiv/_git/VS/pullrequest/689538 - With this PR fixed here: https://dev.azure.com/devdiv/DevDiv/_git/VS/pullrequest/689871
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Resolves #80608.
Will need this test change in the SDK: dotnet/sdk#51192