internal static bool IsOrInheritsFrom(Type Derived, Type Base)
{
if (Derived == Base)
{
return(true);
}
if (Derived.IsGenericParameter)
{
if (Symbols.IsClass(Base) && (uint)(Derived.GenericParameterAttributes & GenericParameterAttributes.NotNullableValueTypeConstraint) > 0U && Symbols.IsOrInheritsFrom(typeof(ValueType), Base))
{
return(true);
}
Type[] parameterConstraints = Derived.GetGenericParameterConstraints();
int index = 0;
while (index < parameterConstraints.Length)
{
if (Symbols.IsOrInheritsFrom(parameterConstraints[index], Base))
{
return(true);
}
checked { ++index; }
}
}
else if (Symbols.IsInterface(Derived))
{
if (Symbols.IsInterface(Base))
{
Type[] interfaces = Derived.GetInterfaces();
int index = 0;
while (index < interfaces.Length)
{
if (interfaces[index] == Base)
{
return(true);
}
checked { ++index; }
}
}
}
else if (Symbols.IsClass(Base) && Symbols.IsClassOrValueType(Derived))
{
return(Derived.IsSubclassOf(Base));
}
return(false);
}
internal static bool IsReferenceType(Type Type)
{
return(Symbols.IsClass(Type) || Symbols.IsInterface(Type));
}
internal static bool IsClassOrValueType(Type Type)
{
return(Symbols.IsValueType(Type) || Symbols.IsClass(Type));
}
