[r-t] Consultation

Mark Davies mark at snowtiger.net
Sat Apr 8 17:31:41 UTC 2017

I think place notation is more than a "method of description" - it does 
get to the heart of the structure of a method. And structure is usually 
a better guide to similarity between methods than blue line.

I also believe there are very many protocols for designing extensions to 
methods. To my mind, if someone has a protocol that produces 
decent-looking extensions, by all means use it. So if you had something 
that works nicely extending bluelines for a subset of methods, I don't 
have a problem.

It is of course possible to do extension badly. I agree with Roddy that, 
if an extension introduces 3 blows in a place, and the parent method 
didn't have that, you're probably doing something wrong, whether you are 
looking at the place notation, the blue line, or some other description.


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