private static void CheckTrivias(SyntaxTriviaList triviaList, SyntaxTreeAnalysisContext c)
{
var pragmaWarnings = triviaList
.Where(t => t.HasStructure)
.Select(t => t.GetStructure())
.OfType <PragmaWarningDirectiveTriviaSyntax>()
.Where(t => t.DisableOrRestoreKeyword.IsKind(SyntaxKind.DisableKeyword));
foreach (var pragmaWarning in pragmaWarnings)
{
var location = Location.Create(pragmaWarning.SyntaxTree,
TextSpan.FromBounds(pragmaWarning.SpanStart, pragmaWarning.DisableOrRestoreKeyword.Span.End));
c.ReportDiagnosticWhenActive(Diagnostic.Create(rule, location));
}
}
private void CheckTokenComments(SyntaxToken token, SyntaxTreeAnalysisContext context)
{
var tokenLine = token.GetLocation().GetLineSpan().StartLinePosition.Line;
var comments = token.TrailingTrivia
.Where(tr => tr.IsKind(SyntaxKind.CommentTrivia));
foreach (var comment in comments)
{
var location = comment.GetLocation();
if (location.GetLineSpan().StartLinePosition.Line == tokenLine &&
!Regex.IsMatch(comment.ToString(), LegalCommentPattern))
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, location));
}
}
}
private static void CheckMultilineComment(SyntaxTreeAnalysisContext context, SyntaxTrivia comment)
{
var triviaContent = GetTriviaContent(comment);
var triviaLines = triviaContent.Split(MetricsBase.LineTerminators, StringSplitOptions.None);
for (var triviaLineNumber = 0; triviaLineNumber < triviaLines.Length; triviaLineNumber++)
{
if (!IsCode(triviaLines[triviaLineNumber]))
{
continue;
}
var triviaStartingLineNumber = comment.GetLocation().GetLineSpan().StartLinePosition.Line;
var lineNumber = triviaStartingLineNumber + triviaLineNumber;
var lineSpan = context.Tree.GetText().Lines[lineNumber].Span;
var commentLineSpan = lineSpan.Intersection(comment.GetLocation().SourceSpan);
var location = Location.Create(context.Tree, commentLineSpan ?? lineSpan);
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, location));
return;
}
}