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src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState_SourceGenerators.cs
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| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
|
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| using System.Collections.Generic; | ||
| using System.Collections.Immutable; | ||
| using System.Runtime.CompilerServices; | ||
| using Microsoft.CodeAnalysis.Diagnostics; | ||
| using Microsoft.CodeAnalysis.Shared.Collections; | ||
| using Roslyn.Utilities; | ||
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| namespace Microsoft.CodeAnalysis; | ||
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| using AnalyzerReferencesToSourceGenerators = ConditionalWeakTable<IReadOnlyList<AnalyzerReference>, SolutionCompilationState.SourceGeneratorMap>; | ||
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| internal partial class SolutionCompilationState | ||
| { | ||
| internal sealed record SourceGeneratorMap( | ||
| ImmutableArray<ISourceGenerator> SourceGenerators, | ||
| ImmutableDictionary<ISourceGenerator, AnalyzerReference> SourceGeneratorToAnalyzerReference); | ||
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| /// <summary> | ||
| /// Cached mapping from language (only C#/VB since those are the only languages that support analyzers) to the lists | ||
| /// of analyzer references (see <see cref="ProjectState.AnalyzerReferences"/>) to all the <see | ||
| /// cref="ISourceGenerator"/>s produced by those references. This should only be created and cached on the OOP side | ||
| /// of things so that we don't cause source generators to be loaded (and fixed) within VS (which is .net framework | ||
| /// only). | ||
| /// </summary> | ||
| private static readonly ImmutableArray<(string language, AnalyzerReferencesToSourceGenerators referencesToGenerators, AnalyzerReferencesToSourceGenerators.CreateValueCallback callback)> s_languageToAnalyzerReferencesToSourceGeneratorsMap = | ||
| [ | ||
| (LanguageNames.CSharp, new(), (static rs => ComputeSourceGenerators(rs, LanguageNames.CSharp))), | ||
| (LanguageNames.VisualBasic, new(), (static rs => ComputeSourceGenerators(rs, LanguageNames.VisualBasic))), | ||
| ]; | ||
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| private static SourceGeneratorMap ComputeSourceGenerators(IReadOnlyList<AnalyzerReference> analyzerReferences, string language) | ||
| { | ||
| using var generators = TemporaryArray<ISourceGenerator>.Empty; | ||
| var generatorToAnalyzerReference = ImmutableDictionary.CreateBuilder<ISourceGenerator, AnalyzerReference>(); | ||
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| foreach (var reference in analyzerReferences) | ||
| { | ||
| foreach (var generator in reference.GetGenerators(language).Distinct()) | ||
| { | ||
| generators.Add(generator); | ||
| generatorToAnalyzerReference.Add(generator, reference); | ||
| } | ||
| } | ||
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| return new(generators.ToImmutableAndClear(), generatorToAnalyzerReference.ToImmutable()); | ||
| } | ||
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| private static ImmutableArray<ISourceGenerator> GetSourceGenerators(ProjectState projectState) | ||
| => GetSourceGenerators(projectState.Language, projectState.AnalyzerReferences); | ||
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| private static ImmutableArray<ISourceGenerator> GetSourceGenerators(string language, IReadOnlyList<AnalyzerReference> analyzerReferences) | ||
| { | ||
| var map = GetSourceGeneratorMap(language, analyzerReferences); | ||
| return map is null ? [] : map.SourceGenerators; | ||
| } | ||
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| private static AnalyzerReference GetAnalyzerReference(ProjectState projectState, ISourceGenerator sourceGenerator) | ||
| { | ||
| var map = GetSourceGeneratorMap(projectState.Language, projectState.AnalyzerReferences); | ||
| Contract.ThrowIfNull(map); | ||
| return map.SourceGeneratorToAnalyzerReference[sourceGenerator]; | ||
| } | ||
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| private static SourceGeneratorMap? GetSourceGeneratorMap(string language, IReadOnlyList<AnalyzerReference> analyzerReferences) | ||
| { | ||
| var tupleOpt = s_languageToAnalyzerReferencesToSourceGeneratorsMap.FirstOrNull(static (t, language) => t.language == language, language); | ||
| if (tupleOpt is null) | ||
| return null; | ||
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| var tuple = tupleOpt.Value; | ||
| return tuple.referencesToGenerators.GetValue(analyzerReferences, tuple.callback); | ||
| } | ||
| } |