Allow xml docs to still be created when 'emit metadata only' is on. #57667
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CyrusNajmabadi
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Nov 10, 2021
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@dotnet/roslyn-compiler ptal :) |
…mabadi/roslyn into metadataOnlyEmitXmlDocs
jcouv
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Nov 15, 2021
jcouv
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Nov 15, 2021
jcouv
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jcouv
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jcouv
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| { | ||
| public static void SayHello() | ||
| { | ||
| ConEmitMetadataOnly_XmlDocs_NoDocMode_Successsole.WriteLine(""hello""); |
jcouv
approved these changes
Dec 6, 2021
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@dotnet/roslyn-compiler for second review. Thanks |
RikkiGibson
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Jan 18, 2022
| xmlDocBytes = xmlStream.ToArray(); | ||
| } | ||
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| // This should not fail the emit (as it's a warning). |
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nit: Please remove this comment here and the one below // Even though docs failed, ...
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Feel free to merge/squash once the typo and last comment are addressed/considered. Thanks |
CyrusNajmabadi
commented
Jan 20, 2022
| { | ||
| public static void SayHello() | ||
| { | ||
| ConEmitMetadataOnly_XmlDocs_NoDocMode_Successsole.WriteLine(""hello""); |
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Suggested change
| ConEmitMetadataOnly_XmlDocs_NoDocMode_Successsole.WriteLine(""hello""); | |
| EmitMetadataOnly_XmlDocs_NoDocMode_Success.WriteLine(""hello""); |
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This doesn't look right, aren't we trying to call Console.WriteLine here?
CyrusNajmabadi
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Jan 20, 2022
CyrusNajmabadi
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Jan 20, 2022
CyrusNajmabadi
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Jan 20, 2022
…mabadi/roslyn into metadataOnlyEmitXmlDocs
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Jan 21, 2022
* upstream/main: (1035 commits) Add missing header Mark IVSTypeScriptFormattingServiceImplementation as optional, but require it in the constructor Fix Go To Base for a symbol with a single metadata location (dotnet#58965) [EnC] Store entire spans instead of line deltas (dotnet#58831) Delete CodeAnalysisRules.ruleset (dotnet#58968) Allow xml docs to still be created when 'emit metadata only' is on. (dotnet#57667) Fix ParseVBErrorOrWarning (dotnet#47833) Update parameter nullability to match implementation Ensure CSharpUseParameterNullCheckingDiagnosticAnalyzer works with nullable parameters Add tests for issues fixed by previous PR (dotnet#58764) Update src/Features/CSharp/Portable/Completion/CompletionProviders/ExplicitInterfaceMemberCompletionProvider.CompletionSymbolDisplay.cs Disallow null checking discard parameters (dotnet#58952) Add extension method Escape type arguments Few fixes Update tests. Add Analyzers layer to CODEOWNERS Add formatting analyzer test for param nullchecking (dotnet#58936) Move reading HideAdvancedMembers option up (dotnet#58747) List patterns: Slice value is assumed to be never null (dotnet#57457) ...
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EmitMetadataOnly is a flag that exists for IDE scenarios to allow it to emit dlls cheaply that give hte top-level surface area of a particular compilation. This can then be used in cross-language scenarios to allow things like intellisense/QI/and-lots-more to work in a live fashion. We call these cross-language metadata-only dlls: 'skeleton assemblies'.
The IDE would like to improve our story around skeleton assemblies by being able to cache them to our persistence store so that later launched sessions of VS can reuse them without recomputing them.
This is generally not difficult for us to do except for one small snag. Specifically, one thing we support today with skeletons is being able to expose xml doc comments through the skeleton. This works by having us actually both emit the metadta-only-dll, but also creating a DocumentationProvider that wraps the original language compilation. So, for example, if VB references C#, it will get a dll for the C# metadata, but it will get a doc-provider that forwards along to the C# compilation to answer questions.
If we want to persist the dll (and still have xml-doc-comments work across languages) then we need to persist the xml doc info as well. This PR updates the compiler to support that. Previously, the compiler would completely skip xml doc generation if EmitMetadataOnly was set. With this PR, the compiler will emit xml doc comments as well if the appropriate stream is provided.
Relates to ref assemblies: #18612