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, info: out info))
{
return(true);
}
// Walk up the syntax tree checking for suppression by any declared symbols encountered
if (location.IsInSource)
{
SemanticModel model = _compilation.GetSemanticModel(location.SourceTree);
bool inImmediatelyContainingSymbol = true;
for (SyntaxNode node = location.SourceTree.GetRoot().FindNode(location.SourceSpan, getInnermostNodeForTie: true);
node != null;
node = node.Parent)
{
ImmutableArray <ISymbol> declaredSymbols = model.GetDeclaredSymbolsForNode(node);
Debug.Assert(declaredSymbols != null);
foreach (ISymbol symbol in declaredSymbols)
{
if (symbol.Kind == SymbolKind.Namespace)
{
// Special case: Only suppress syntax diagnostics in namespace declarations if the namespace is the closest containing symbol.
// In other words, only apply suppression to the immediately containing namespace declaration and not to its children or parents.
return(inImmediatelyContainingSymbol && IsDiagnosticGloballySuppressed(id, symbol, out info));
}
else if (IsDiagnosticLocallySuppressed(id, symbol, out info) || IsDiagnosticGloballySuppressed(id, symbol, out info))
{
return(true);
}
inImmediatelyContainingSymbol = false;
}
}
}
return(false);
}