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());
}
}
