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The contract is functions not members, and Clojure has a way to declare public and private fns, so what's your argument?

When I release a new major version of Foo Lib, and your program refers to private members, your program will break when I remove or rename them.

Immutability won't protect you from that.

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Except if the public api of foo lib is only functions, which is the case for all clojure libs i've worked with.

EDIT: Ha, i just stumbled on this old yegge article, which is quite appropriate i think. With clojure APIs you think in verbs, so nouns are not that important

http://steve-yegge.blogspot.com/2006/03/execution-in-kingdom...

EDIT2 : perfect quote :

"In the remotest regions, beyond the Functional Kingdoms, lies a fabled realm called Lambda the Ultimate. In this place it is said that there are no nouns at all, only verbs!"

here you go ;)

"In the remotest regions, beyond the Functional Kingdoms, lies a fabled realm called Lambda the Ultimate. In this place it is said that there are no nouns at all, only verbs!"

I already live in that Kingdom, so when I say "members", I mean member variables or member functions.

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