private bool IsDiagnosticSuppressed(string id, Location location, out SuppressMessageInfo info)
{
Debug.Assert(id != null);
Debug.Assert(location != null);
info = default(SuppressMessageInfo);
if (IsDiagnosticGloballySuppressed(id, symbolOpt: null, isImmediatelyContainingSymbol: false, info: out info))
{
return(true);
}
// Walk up the syntax tree checking for suppression by any declared symbols encountered
if (location.IsInSource)
{
var model = _compilation.GetSemanticModel(location.SourceTree);
bool inImmediatelyContainingSymbol = true;
for (var node = location.SourceTree.GetRoot().FindNode(location.SourceSpan, getInnermostNodeForTie: true);
node != null;
node = node.Parent)
{
var declaredSymbols = model.GetDeclaredSymbolsForNode(node);
Debug.Assert(declaredSymbols != null);
foreach (var symbol in declaredSymbols)
{
if (symbol.Kind == SymbolKind.Namespace)
{
return(hasNamespaceSuppression((INamespaceSymbol)symbol, inImmediatelyContainingSymbol));
}
else if (IsDiagnosticLocallySuppressed(id, symbol, out info) || IsDiagnosticGloballySuppressed(id, symbol, inImmediatelyContainingSymbol, out info))
{
return(true);
}
}
if (!declaredSymbols.IsEmpty)
{
inImmediatelyContainingSymbol = false;
}
}
}
return(false);
bool hasNamespaceSuppression(INamespaceSymbol namespaceSymbol, bool inImmediatelyContainingSymbol)
{
do
{
if (IsDiagnosticGloballySuppressed(id, namespaceSymbol, inImmediatelyContainingSymbol, out _))
{
return(true);
}
namespaceSymbol = namespaceSymbol.ContainingNamespace;
inImmediatelyContainingSymbol = false;
}while (namespaceSymbol != null);
return(false);
}
}
private bool IsDiagnosticSuppressed(Diagnostic diagnostic, out SuppressMessageInfo info) => IsDiagnosticSuppressed(diagnostic.Id, diagnostic.Location, out info);
