A quick way to 'protect' your code (or Howto crash Reflector .NET)
.method static object Foo(object obj)
{
ldarg.0
dup
brtrue.s L1
ret
L1:
callvirt instance class [mscorlib]System.Type [mscorlib]System.Object::GetType()
ret
}
While there is no way* you can write this in C#, it is still valid and verifiable IL.
I picked this up when writing an accessor for chained properties to do null checks without having to store and load from locals (which is a 'tad' more complex than the example shown above).
