public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context) { SyntaxNode root = await context.Document.GetSyntaxRootAsync(context.CancellationToken).ConfigureAwait(false); DoStatementSyntax doStatement = root .FindNode(context.Span, getInnermostNodeForTie: true)? .FirstAncestorOrSelf <DoStatementSyntax>(); if (doStatement == null) { return; } TextSpan span = TextSpan.FromBounds( doStatement.Statement.Span.End, doStatement.Span.End); if (root .DescendantTrivia(span) .All(f => f.IsWhitespaceOrEndOfLine())) { CodeAction codeAction = CodeAction.Create( "Use while statement to create an infinite loop", cancellationToken => { return(DoStatementRefactoring.ConvertToWhileStatementAsync( context.Document, doStatement, cancellationToken)); }, DiagnosticIdentifiers.AvoidUsageOfDoStatementToCreateInfiniteLoop + EquivalenceKeySuffix); context.RegisterCodeFix(codeAction, context.Diagnostics); } }
private void AnalyzeDoStatement(SyntaxNodeAnalysisContext context) { if (GeneratedCodeAnalyzer?.IsGeneratedCode(context) == true) { return; } var doStatement = (DoStatementSyntax)context.Node; if (DoStatementRefactoring.CanConvertToWhileStatement(doStatement)) { context.ReportDiagnostic( DiagnosticDescriptors.AvoidUsageOfDoStatementToCreateInfiniteLoop, doStatement.DoKeyword.GetLocation()); } }