public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out ElseClauseSyntax elseClause))
{
return;
}
foreach (Diagnostic diagnostic in context.Diagnostics)
{
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.RemoveUnnecessaryElseClause:
{
CodeAction codeAction = CodeAction.Create(
"Remove else clause",
cancellationToken => RemoveUnnecessaryElseClauseRefactoring.RefactorAsync(context.Document, elseClause, cancellationToken),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
}
}
public static void Analyze(SyntaxNodeAnalysisContext context)
{
var elseClause = (ElseClauseSyntax)context.Node;
if (elseClause.ContainsDiagnostics)
{
return;
}
if (!RemoveUnnecessaryElseClauseRefactoring.IsFixable(elseClause))
{
return;
}
context.ReportDiagnostic(DiagnosticDescriptors.RemoveUnnecessaryElseClause, elseClause.ElseKeyword);
}
