// 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.
 
namespace Microsoft.CodeAnalysis.CSharp.Shared.Extensions;
 
internal static class LanguageVersionExtensions
{
    public static bool IsCSharp14OrAbove(this LanguageVersion languageVersion)
        => languageVersion >= LanguageVersion.Preview;
 
    public static bool IsCSharp13OrAbove(this LanguageVersion languageVersion)
        => languageVersion >= LanguageVersion.CSharp13;
 
    public static bool IsCSharp12OrAbove(this LanguageVersion languageVersion)
        => languageVersion >= LanguageVersion.CSharp12;
 
    public static bool IsCSharp11OrAbove(this LanguageVersion languageVersion)
        => languageVersion >= LanguageVersion.CSharp11;
 
    public static bool HasConstantInterpolatedStrings(this LanguageVersion languageVersion)
        => languageVersion >= LanguageVersion.CSharp10;
 
    public static bool SupportsCollectionExpressions(this LanguageVersion languageVersion)
        => languageVersion.IsCSharp12OrAbove();
 
    public static bool SupportsPrimaryConstructors(this LanguageVersion languageVersion)
        => languageVersion.IsCSharp12OrAbove();
 
    /// <remarks>
    /// Corresponds to Microsoft.CodeAnalysis.CSharp.LanguageVersionFacts.CSharpNext.
    /// </remarks>
    internal const LanguageVersion CSharpNext = LanguageVersion.Preview;
}