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Pause a short while before computing if fixes or refactorings are available at a particular line #73755

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merged 1 commit into from
May 29, 2024
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Pause a short while before computing if fixes or refactorings are available at a particular line #73755

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8 changes: 8 additions & 0 deletions src/EditorFeatures/Core.Wpf/Suggestions/SuggestedActionsSource.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,14 @@ private void OnTextViewClosed(object sender, EventArgs e)
public async Task<ISuggestedActionCategorySet?> GetSuggestedActionCategoriesAsync(
ISuggestedActionCategorySet requestedActionCategories, SnapshotSpan range, CancellationToken cancellationToken)
{
// This function gets called immediately after operations like scrolling. We want to wait just a small
// amount to ensure that we don't immediately start consuming CPU/memory which then impedes the very
// action the user is trying to perform. To accomplish this, we wait 100ms. That's longer than normal
// keyboard repeat rates (usually around 30ms), but short enough that it's not noticeable to the user.
await Task.Delay(100, cancellationToken).NoThrowAwaitable();
if (cancellationToken.IsCancellationRequested)
return null;

using var state = _state.TryAddReference();
if (state is null)
return null;
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