// 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.Threading;
using Microsoft.CodeAnalysis.CSharp.Extensions.ContextQuery;
using Microsoft.CodeAnalysis.Shared.Extensions;
 
namespace Microsoft.CodeAnalysis.CSharp.Completion.KeywordRecommenders
{
    internal class DefineKeywordRecommender : AbstractSyntacticSingleKeywordRecommender
    {
        public DefineKeywordRecommender()
            : base(SyntaxKind.DefineKeyword, isValidInPreprocessorContext: true)
        {
        }
 
        protected override bool IsValidContext(int position, CSharpSyntaxContext context, CancellationToken cancellationToken)
            => context.IsPreProcessorKeywordContext &&
               context.SyntaxTree.IsBeforeFirstToken(position, cancellationToken);
    }
}