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// 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 Microsoft.CodeAnalysis.Completion.Providers;
using Microsoft.CodeAnalysis.CSharp.Extensions.ContextQuery;
namespace Microsoft.CodeAnalysis.CSharp.Completion.KeywordRecommenders;
internal abstract class AbstractNativeIntegerKeywordRecommender : IKeywordRecommender<CSharpSyntaxContext>
{
protected abstract RecommendedKeyword Keyword { get; }
private static bool IsValidContext(CSharpSyntaxContext context)
{
if (context.IsTaskLikeTypeContext ||
context.IsGenericConstraintContext ||
context.IsAttributeNameContext)
{
return false;
}
if (context.IsStatementContext ||
context.IsGlobalStatementContext ||
context.IsPossibleTupleContext ||
context.IsAtStartOfPattern ||
context.IsUsingAliasTypeContext ||
(context.IsTypeContext && !context.IsEnumBaseListContext))
{
return true;
}
return context.IsLocalVariableDeclarationContext;
}
public ImmutableArray<RecommendedKeyword> RecommendKeywords(int position, CSharpSyntaxContext context, CancellationToken cancellationToken)
=> IsValidContext(context) ? [Keyword] : [];
}
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