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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.Linq;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Shared.Extensions;
namespace Microsoft.CodeAnalysis.CSharp.Extensions;
internal static class StatementSyntaxExtensions
{
public static StatementSyntax WithoutLeadingBlankLinesInTrivia(this StatementSyntax statement)
=> statement.WithLeadingTrivia(statement.GetLeadingTrivia().WithoutLeadingBlankLines());
public static StatementSyntax? GetPreviousStatement(this StatementSyntax? statement)
{
if (statement != null)
{
var previousToken = statement.GetFirstToken().GetPreviousToken();
return previousToken.GetAncestors<StatementSyntax>().FirstOrDefault(s => AreSiblingStatements(s, statement));
}
return null;
}
public static StatementSyntax? GetNextStatement(this StatementSyntax? statement)
{
if (statement != null)
{
var nextToken = statement.GetLastToken().GetNextToken();
return nextToken.GetAncestors<StatementSyntax>().FirstOrDefault(s => AreSiblingStatements(s, statement));
}
return null;
}
private static bool AreSiblingStatements(StatementSyntax first, StatementSyntax second)
{
if (first.Parent.IsKind(SyntaxKind.GlobalStatement))
return second.Parent.IsKind(SyntaxKind.GlobalStatement);
else
return first.Parent == second.Parent;
}
}
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