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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.
#nullable disable
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeActions;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CodeFixesAndRefactorings;
using Microsoft.CodeAnalysis.Editor.Shared.Extensions;
using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using Microsoft.CodeAnalysis.ErrorReporting;
using Microsoft.CodeAnalysis.Extensions;
using Microsoft.CodeAnalysis.Internal.Log;
using Microsoft.CodeAnalysis.Progress;
using Microsoft.CodeAnalysis.Telemetry;
using Microsoft.CodeAnalysis.Text;
using Microsoft.VisualStudio.Core.Imaging;
using Microsoft.VisualStudio.Imaging.Interop;
using Microsoft.VisualStudio.Language.Intellisense;
using Microsoft.VisualStudio.Text;
using Microsoft.VisualStudio.Threading;
using Microsoft.VisualStudio.Utilities;
using Roslyn.Utilities;
namespace Microsoft.CodeAnalysis.Editor.Implementation.Suggestions
{
/// <summary>
/// Base class for all Roslyn light bulb menu items.
/// </summary>
internal abstract partial class SuggestedAction : ISuggestedAction3, IEquatable<ISuggestedAction>
{
protected readonly IThreadingContext ThreadingContext;
protected readonly SuggestedActionsSourceProvider SourceProvider;
protected readonly Workspace Workspace;
protected readonly Solution OriginalSolution;
protected readonly ITextBuffer SubjectBuffer;
protected readonly object Provider;
internal readonly CodeAction CodeAction;
private ICodeActionEditHandlerService EditHandler => SourceProvider.EditHandler;
internal SuggestedAction(
IThreadingContext threadingContext,
SuggestedActionsSourceProvider sourceProvider,
Workspace workspace,
Solution originalSolution,
ITextBuffer subjectBuffer,
object provider,
CodeAction codeAction)
{
Contract.ThrowIfNull(provider);
Contract.ThrowIfNull(codeAction);
ThreadingContext = threadingContext;
SourceProvider = sourceProvider;
Workspace = workspace;
OriginalSolution = originalSolution;
SubjectBuffer = subjectBuffer;
Provider = provider;
CodeAction = codeAction;
}
public virtual bool TryGetTelemetryId(out Guid telemetryId)
{
telemetryId = CodeAction.GetTelemetryId();
return true;
}
protected async Task<ImmutableArray<CodeActionOperation>> GetOperationsAsync(
IProgress<CodeAnalysisProgress> progressTracker, CancellationToken cancellationToken)
{
// Avoid computing the operations on the UI thread
await TaskScheduler.Default;
return await CodeAction.GetOperationsAsync(this.OriginalSolution, progressTracker, cancellationToken).ConfigureAwait(false);
}
protected async Task<IEnumerable<CodeActionOperation>> GetOperationsAsync(
CodeActionWithOptions actionWithOptions, object options, IProgress<CodeAnalysisProgress> progressTracker, CancellationToken cancellationToken)
{
// Avoid computing the operations on the UI thread
await TaskScheduler.Default;
return await actionWithOptions.GetOperationsAsync(this.OriginalSolution, options, progressTracker, cancellationToken).ConfigureAwait(false);
}
protected async Task<ImmutableArray<CodeActionOperation>> GetPreviewOperationsAsync(CancellationToken cancellationToken)
{
// Avoid computing the operations on the UI thread
await TaskScheduler.Default;
return await CodeAction.GetPreviewOperationsAsync(this.OriginalSolution, cancellationToken).ConfigureAwait(false);
}
public void Invoke(CancellationToken cancellationToken)
{
throw new NotImplementedException("Invoke(CancellationToken) is no longer supported. Use Invoke(IUIThreadOperationContext) instead.");
}
public void Invoke(IUIThreadOperationContext context)
{
// we're going to return immediately from Invoke and kick off our own async work to invoke the
// code action. Once this returns, the editor will close the threaded wait dialog it created.
// So we need to take ownership of it and start our own TWD instead to track this.
context.TakeOwnership();
_ = InvokeAsync();
}
private async Task InvokeAsync()
{
try
{
using var _ = TelemetryLogging.LogBlockTimeAggregated(FunctionId.SuggestedAction_Application_Summary, $"Total");
using var token = SourceProvider.OperationListener.BeginAsyncOperation($"{nameof(SuggestedAction)}.{nameof(Invoke)}");
using var context = SourceProvider.UIThreadOperationExecutor.BeginExecute(
EditorFeaturesResources.Execute_Suggested_Action, CodeAction.Title, allowCancellation: true, showProgress: true);
using var scope = context.AddScope(allowCancellation: true, CodeAction.Message);
await this.InnerInvokeAsync(scope.GetCodeAnalysisProgress(), context.UserCancellationToken).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
}
catch (Exception ex) when (FatalError.ReportAndCatch(ex, ErrorSeverity.Critical))
{
}
}
protected virtual async Task InnerInvokeAsync(IProgress<CodeAnalysisProgress> progressTracker, CancellationToken cancellationToken)
{
await this.ThreadingContext.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
using (new CaretPositionRestorer(SubjectBuffer, EditHandler.AssociatedViewService))
{
// ConfigureAwait(true) so that CaretPositionRestorer.Dispose runs on the UI thread.
await Workspace.Services.GetService<IExtensionManager>().PerformActionAsync(
Provider, () => InvokeWorkerAsync(progressTracker, cancellationToken)).ConfigureAwait(true);
}
}
private async Task InvokeWorkerAsync(IProgress<CodeAnalysisProgress> progressTracker, CancellationToken cancellationToken)
{
await this.ThreadingContext.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
IEnumerable<CodeActionOperation> operations = null;
if (CodeAction is CodeActionWithOptions actionWithOptions)
{
var options = actionWithOptions.GetOptions(cancellationToken);
if (options != null)
operations = await GetOperationsAsync(actionWithOptions, options, progressTracker, cancellationToken).ConfigureAwait(true);
}
else
{
operations = await GetOperationsAsync(progressTracker, cancellationToken).ConfigureAwait(true);
}
this.ThreadingContext.ThrowIfNotOnUIThread();
if (operations != null)
{
// Clear the progress we showed while computing the action.
// We'll now show progress as we apply the action.
progressTracker.Report(CodeAnalysisProgress.Clear());
progressTracker.Report(CodeAnalysisProgress.Description(EditorFeaturesResources.Applying_changes));
using (Logger.LogBlock(
FunctionId.CodeFixes_ApplyChanges, KeyValueLogMessage.Create(LogType.UserAction, m => CreateLogProperties(m)), cancellationToken))
{
var document = this.SubjectBuffer.CurrentSnapshot.GetOpenDocumentInCurrentContextWithChanges();
await EditHandler.ApplyAsync(
Workspace,
OriginalSolution,
document,
operations.ToImmutableArray(),
CodeAction.Title,
progressTracker,
cancellationToken).ConfigureAwait(false);
}
}
}
private void CreateLogProperties(Dictionary<string, object> map)
{
// set various correlation info
if (CodeAction is AbstractFixAllCodeFixCodeAction fixSome)
{
// fix all correlation info
map[FixAllLogger.CorrelationId] = fixSome.FixAllState.CorrelationId;
map[FixAllLogger.FixAllScope] = fixSome.FixAllState.Scope.ToString();
}
if (TryGetTelemetryId(out var telemetryId))
{
// Lightbulb correlation info
map["TelemetryId"] = telemetryId.ToString();
}
if (this is ITelemetryDiagnosticID<string> diagnosticId)
{
// save what it is actually fixing
map["DiagnosticId"] = diagnosticId.GetDiagnosticID();
}
}
public string DisplayText
{
get
{
// Underscores will become an accelerator in the VS smart tag. So we double all
// underscores so they actually get represented as an underscore in the UI.
var extensionManager = Workspace.Services.GetService<IExtensionManager>();
var text = extensionManager.PerformFunction(Provider, () => CodeAction.Title, defaultValue: string.Empty);
return text.Replace("_", "__");
}
}
public string DisplayTextSuffix => "";
protected async Task<SolutionPreviewResult> GetPreviewResultAsync(CancellationToken cancellationToken)
{
var operations = await GetPreviewOperationsAsync(cancellationToken).ConfigureAwait(true);
await ThreadingContext.JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
return await EditHandler.GetPreviewsAsync(Workspace, operations, cancellationToken).ConfigureAwait(true);
}
public virtual bool HasPreview => false;
public virtual Task<object> GetPreviewAsync(CancellationToken cancellationToken)
=> SpecializedTasks.Null<object>();
public virtual bool HasActionSets => false;
public virtual Task<IEnumerable<SuggestedActionSet>> GetActionSetsAsync(CancellationToken cancellationToken)
=> SpecializedTasks.EmptyEnumerable<SuggestedActionSet>();
#region not supported
void IDisposable.Dispose()
{
// do nothing
}
// same as display text
string ISuggestedAction.IconAutomationText => DisplayText;
ImageMoniker ISuggestedAction.IconMoniker
{
get
{
var tags = CodeAction.Tags;
if (tags.Length > 0)
{
foreach (var service in SourceProvider.ImageIdServices)
{
if (service.Value.TryGetImageId(tags, out var imageId) && !imageId.Equals(default(ImageId)))
{
// Not using the extension method because it's not available in Cocoa
return new ImageMoniker
{
Guid = imageId.Guid,
Id = imageId.Id
};
}
}
}
return default;
}
}
// no shortcut support
string ISuggestedAction.InputGestureText => null;
#endregion
#region IEquatable<ISuggestedAction>
public bool Equals(ISuggestedAction other)
=> Equals(other as SuggestedAction);
public override bool Equals(object obj)
=> Equals(obj as SuggestedAction);
internal bool Equals(SuggestedAction otherSuggestedAction)
{
if (otherSuggestedAction == null)
{
return false;
}
if (this == otherSuggestedAction)
{
return true;
}
if (Provider != otherSuggestedAction.Provider)
{
return false;
}
var otherCodeAction = otherSuggestedAction.CodeAction;
if (CodeAction.EquivalenceKey == null || otherCodeAction.EquivalenceKey == null)
{
return false;
}
return CodeAction.EquivalenceKey == otherCodeAction.EquivalenceKey;
}
public override int GetHashCode()
{
if (CodeAction.EquivalenceKey == null)
{
return base.GetHashCode();
}
return Hash.Combine(Provider.GetHashCode(), CodeAction.EquivalenceKey.GetHashCode());
}
#endregion
}
}
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