[Mono-dev] Faster

[Steve Lessard]

I think Sebastian already touched on this issue, but I wanted to shine a
little more light on it.  If the Something class were defined as below and x
was not null wouldn't the Foo method throw an exception incorrectly stating
that x was null?


class Something 
{
    public Something()
    {
    }

    public void DoSomething()
    {
        throw new NullReferenceException();
    }
}

void Foo (Something x) 
{ 
    try { 
        x.DoSomething (); 
    } catch (NullReferenceException e){ 
        if (x == null) 
             throw new ArgumentNullException ("x"); 
        else 
              throw; 
    } 
    x.AndThenMore (); 
} 











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