File: Completion\Providers\AbstractSuggestionModeCompletionProvider.cs
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Project: src\src\Features\Core\Portable\Microsoft.CodeAnalysis.Features.csproj (Microsoft.CodeAnalysis.Features)
// 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.
 
using System.Collections.Immutable;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.CodeAnalysis.Completion.Providers;
 
internal abstract class AbstractSuggestionModeCompletionProvider : LSPCompletionProvider
{
    protected abstract Task<CompletionItem?> GetSuggestionModeItemAsync(Document document, int position, TextSpan span, CompletionTrigger triggerInfo, CancellationToken cancellationToken);
 
    public override async Task ProvideCompletionsAsync(CompletionContext context)
    {
        context.SuggestionModeItem = await GetSuggestionModeItemAsync(
            context.Document, context.Position, context.CompletionListSpan, context.Trigger, context.CancellationToken).ConfigureAwait(false);
    }
 
    protected static CompletionItem CreateEmptySuggestionModeItem()
        => CreateSuggestionModeItem(displayText: null, description: null);
 
    public override ImmutableHashSet<char> TriggerCharacters => [];
}