dataflow / class diagram duality

[atheorist]

Class diagrams in UML (for my purposes) have boxes, two kinds of arrows (isa and hasa) between boxes, and methods, which are essentially strings, inside the boxes. Class diagrams correspond to object-oriented code in that each box probably has a section of code corresponding to it, each method probably has a section of code corresponding to it, and

Comments

[darius]

I'm toying with maybe preparing a talk for Hacker School about functional and OO programming. "The lambda calculus: the first object-oriented language." The link I was thinking of emphasizing was, in LC, the only thing you can do with a function is to call it; while in OO, I mean the really pure version of it like Actors, all you can do with an object is send it a message. For the 'things' in either system, you are what you do

[darius]

P.S. writing that out prodded me to read http://www.cs.utexas.edu/~wcook/Drafts/2009/essay.pdf which turns out to say practically all of what I had in mind, down even to the title (section 5.4 ends "the untyped lambda-calculus was the first object-oriented language.")