ServiceFeatureOnOffOptions.cs

// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.

using System.Collections.Immutable;
using Microsoft.CodeAnalysis.Options;

namespace Microsoft.CodeAnalysis.Shared.Options
{
    internal static class ServiceFeatureOnOffOptions
    {
        public const string OptionName = "ServiceFeaturesOnOff";

        /// <summary>
        /// this option is solely for performance. don't confused by option name. 
        /// this option doesn't mean we will show all diagnostics that belong to opened files when turned off,
        /// rather it means we will only show diagnostics that are cheap to calculate for small scope such as opened files.
        /// </summary>
        public static readonly PerLanguageOption<bool> ClosedFileDiagnostic = new PerLanguageOption<bool>(
            OptionName, "Closed File Diagnostic", defaultValue: true, perLanguageDefaults: ImmutableDictionary<string, bool>.Empty.Add(LanguageNames.CSharp, false));
    }
}