public static string?GetSource(this Diagnostic diagnostic, IOpenApiElementRegistry elementRegistry)
{
if (diagnostic == null)
{
throw new ArgumentNullException(nameof(diagnostic));
}
if (elementRegistry == null)
{
throw new ArgumentNullException(nameof(elementRegistry));
}
SyntaxTree?syntaxTree = diagnostic.Location.SourceTree;
if (syntaxTree == null)
{
return(null);
}
CompilationUnitSyntax compilationUnit = syntaxTree.GetCompilationUnitRoot();
return(compilationUnit.GetResourceNameAnnotation()
?? compilationUnit.GetElementAnnotations(elementRegistry).FirstOrDefault()?.ToString());
}