private void CheckNewModifier(Symbol symbol, bool isNew, DiagnosticBag diagnostics)
{
// for error cases
if ((object)this.BaseTypeNoUseSiteDiagnostics == null)
{
return;
}
// Do not give warnings about missing 'new' modifier for implicitly declared members,
// e.g. backing fields for auto-properties
if (symbol.IsImplicitlyDeclared)
{
return;
}
int symbolArity = symbol.GetMemberArity();
Location symbolLocation = symbol.Locations.FirstOrDefault();
bool unused = false;
NamedTypeSymbol currType = this.BaseTypeNoUseSiteDiagnostics;
while ((object)currType != null)
{
foreach (var hiddenMember in currType.GetMembers(symbol.Name))
{
if (hiddenMember.Kind == SymbolKind.Method && !((MethodSymbol)hiddenMember).CanBeHiddenByMemberKind(symbol.Kind))
{
continue;
}
HashSet<DiagnosticInfo> useSiteDiagnostics = null;
bool isAccessible = AccessCheck.IsSymbolAccessible(hiddenMember, this, ref useSiteDiagnostics);
diagnostics.Add(symbolLocation, useSiteDiagnostics);
if (isAccessible && hiddenMember.GetMemberArity() == symbolArity)
{
if (!isNew)
{
diagnostics.Add(ErrorCode.WRN_NewRequired, symbolLocation, symbol, hiddenMember);
}
AddHidingAbstractDiagnostic(symbol, symbolLocation, hiddenMember, diagnostics, ref unused);
return;
}
}
currType = currType.BaseTypeNoUseSiteDiagnostics;
}
if (isNew)
{
diagnostics.Add(ErrorCode.WRN_NewNotRequired, symbolLocation, symbol);
}
}