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98 changes: 98 additions & 0 deletions
98
src/VisualStudio/Core/Def/ProjectSystem/VisualStudioWorkspaceImpl_SourceGenerators.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| // 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; | ||
| using System.ComponentModel.Composition; | ||
| using System.Linq; | ||
| using Microsoft.CodeAnalysis.Editor; | ||
| using Microsoft.CodeAnalysis.Host; | ||
| using Microsoft.CodeAnalysis.Host.Mef; | ||
| using Microsoft.CodeAnalysis.Text; | ||
| using Microsoft.VisualStudio.Commanding; | ||
| using Microsoft.VisualStudio.Shell; | ||
| using Microsoft.VisualStudio.Shell.Interop; | ||
| using Microsoft.VisualStudio.Text.Editor.Commanding.Commands; | ||
| using Microsoft.VisualStudio.Utilities; | ||
|
|
||
| namespace Microsoft.VisualStudio.LanguageServices.Implementation.ProjectSystem; | ||
|
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| internal abstract partial class VisualStudioWorkspaceImpl | ||
| { | ||
| private bool _isSubscribedToSourceGeneratorImpactingEvents; | ||
|
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| public void SubscribeToSourceGeneratorImpactingEvents() | ||
| { | ||
| _foregroundObject.AssertIsForeground(); | ||
| if (_isSubscribedToSourceGeneratorImpactingEvents) | ||
| return; | ||
|
|
||
| // UIContextImpl requires IVsMonitorSelection service: | ||
| if (ServiceProvider.GlobalProvider.GetService(typeof(IVsMonitorSelection)) == null) | ||
| return; | ||
|
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| _isSubscribedToSourceGeneratorImpactingEvents = true; | ||
|
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| // This pattern ensures that we are called whenever the build starts/completes even if it is already in progress. | ||
| KnownUIContexts.SolutionBuildingContext.WhenActivated(() => | ||
| { | ||
| KnownUIContexts.SolutionBuildingContext.UIContextChanged += (_, e) => | ||
| { | ||
| if (!e.Activated) | ||
| { | ||
| // After a build occurs, transition the solution to a new source generator version. This will | ||
| // ensure that any cached SG documents will be re-generated. | ||
| this.EnqueueUpdateSourceGeneratorVersion(projectId: null, forceRegeneration: false); | ||
| } | ||
| }; | ||
| }); | ||
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|
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| KnownUIContexts.SolutionExistsAndFullyLoadedContext.WhenActivated(() => | ||
| { | ||
| KnownUIContexts.SolutionExistsAndFullyLoadedContext.UIContextChanged += (_, e) => | ||
| { | ||
| if (e.Activated) | ||
| { | ||
| // After the solution fully loads, transition the solution to a new source generator version. This | ||
| // will ensure that we'll now produce correct SG docs with fully knowledge of all the user's state. | ||
| this.EnqueueUpdateSourceGeneratorVersion(projectId: null, forceRegeneration: false); | ||
| } | ||
| }; | ||
| }); | ||
|
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| // Whenever the workspace status changes, go attempt to update generators. | ||
| var workspaceStatusService = this.Services.GetRequiredService<IWorkspaceStatusService>(); | ||
| workspaceStatusService.StatusChanged += (_, _) => EnqueueUpdateSourceGeneratorVersion(projectId: null, forceRegeneration: false); | ||
|
|
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| // Now kick off at least the initial work to run generators. | ||
| this.EnqueueUpdateSourceGeneratorVersion(projectId: null, forceRegeneration: false); | ||
| } | ||
|
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| [Export(typeof(ICommandHandler))] | ||
| [ContentType(ContentTypeNames.RoslynContentType)] | ||
| [ContentType(ContentTypeNames.XamlContentType)] | ||
| [Name(PredefinedCommandHandlerNames.SourceGeneratorSave)] | ||
| [method: ImportingConstructor] | ||
| [method: Obsolete(MefConstruction.ImportingConstructorMessage, error: true)] | ||
| internal sealed class SaveCommandHandler() : IChainedCommandHandler<SaveCommandArgs> | ||
| { | ||
| public string DisplayName => ServicesVSResources.Roslyn_save_command_handler; | ||
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| public CommandState GetCommandState(SaveCommandArgs args, Func<CommandState> nextCommandHandler) | ||
| => nextCommandHandler(); | ||
|
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| public void ExecuteCommand(SaveCommandArgs args, Action nextCommandHandler, CommandExecutionContext executionContext) | ||
| { | ||
| nextCommandHandler(); | ||
|
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| // After a save happens, enqueue a request to run generators on the projects impacted by the save. | ||
| foreach (var projectGroup in args.SubjectBuffer.GetRelatedDocuments().GroupBy(d => d.Project)) | ||
| { | ||
| if (projectGroup.Key.Solution.Workspace is VisualStudioWorkspaceImpl visualStudioWorkspace) | ||
| { | ||
| visualStudioWorkspace.EnqueueUpdateSourceGeneratorVersion(projectGroup.Key.Id, forceRegeneration: false); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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