private static void DiagnosticConfig(
CompilationAnalysisContext context, ConfigPod pod)
{
Location NewLocation(int row, int col)
{
var path = pod.Path;
if (path is null)
{
return(Location.None);
}
var start = new LinePosition(row, col);
return(Location.Create(
path,
new TextSpan(0, 0),
new LinePositionSpan(start, start)));
}
if (pod.Exception is XmlException xmlException)
{
var row = xmlException.LineNumber - 1;
var col = xmlException.LinePosition - 1;
var diagnostic = Diagnostic.Create(
Rule, NewLocation(row, col), xmlException.Message);
context.ReportDiagnostic(diagnostic);
return;
}
if (pod.Exception is BindException bindException)
{
var info = bindException.LineInfo;
var localtion = info.HasLineInfo()
? NewLocation(info.LineNumber - 1, info.LinePosition - 1)
: NewLocation(0, 0);
var diagnostic = Diagnostic.Create(
Rule, localtion, bindException.Message);
context.ReportDiagnostic(diagnostic);
return;
}
if (!(pod.Exception is null))
{
var diagnostic = Diagnostic.Create(
Rule, NewLocation(0, 0), pod.Exception.ToString());
context.ReportDiagnostic(diagnostic);
return;
}
var errors = pod.RootConfig.Validate()
.Select(e => e.ToTuple());
foreach (var(line, column, message) in errors)
{
var diagnostic = Diagnostic.Create(
Rule,
NewLocation(line - 1, column - 1),
message);
context.ReportDiagnostic(diagnostic);
}
}
private static void AnalyzeSyntaxTree(
SyntaxTreeAnalysisContext context,
ConfigPod pod)
{
var config = pod.RootConfig.LongLine;
var maxLineLength = config.GetMaxLineLength();
bool Over(Location location)
=> location.GetLineSpan()
.StartLinePosition
.Character >= maxLineLength;
var root = context.Tree.GetCompilationUnitRoot(
context.CancellationToken);
var firstTrivia = root.DescendantTrivia()
.FirstOrDefault(t => t.IsKind(SyntaxKind.EndOfLineTrivia) &&
Over(t.GetLocation()));
var firstToken = root.DescendantTokens(descendIntoTrivia: true)
.FirstOrDefault(
t => t.IsKind(SyntaxKind.XmlTextLiteralNewLineToken) &&
Over(t.GetLocation()));
var list = new List <Location>();
if (firstTrivia != default)
{
list.Add(firstTrivia.GetLocation());
}
if (firstToken != default)
{
list.Add(firstToken.GetLocation());
}
if (list.Count == 0)
{
return;
}
list.Sort((location, another)
=> location.SourceSpan.Start - another.SourceSpan.Start);
/* list[0] is safe. */
var first = list[0];
var diagnostic = Diagnostic.Create(
Rule,
first,
maxLineLength);
context.ReportDiagnostic(diagnostic);
}
private static void CheckCustomFiles(
CompilationAnalysisContext context, ConfigPod pod)
{
private void StartAction(
CompilationStartAnalysisContext context, ConfigPod pod)
{
context.RegisterSyntaxTreeAction(
c => AnalyzeSyntaxTree(c, pod));
}
