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My understanding (it's been well over a decade since I read Brian's paper) was that 3-lisp was the direct inspiration for the CLOS Metaobject Protocol. The sema

My understanding (it's been well over a decade since I read Brian's paper) was that 3-lisp was the direct inspiration for the CLOS Metaobject Protocol. The semantics of CLOS are given in terms of CLOS, and as a reflective object system, you can happily intercede and change those semantics.

gumby 4y ago
With Danny and Jim as authors of the book (with Gregor), that’s likely, though perhaps “direct inspiration” is rather strong. “An inspiration” might be better.
- agumonkey 4y ago
  Do you know any articles about the history of AoMOP or other influences ?
  - gumby 4y ago
    No, but you could look in the proceedings of contemporary POPLs and ACM Lisp and Functional Programming conferences.
doug-moen 4y ago
The goals of CLOS were to support object-oriented programming, inspired by Smalltalk, which was the first reflective object system, and which has its own meta-objects and corresponding protocols. CLOS evolved out of earlier LISP object systems, LOOPS and Flavors, both of which predate Brian's thesis, and both of which have various kinds of meta-objects with protocols. I don't know anything about how 3-Lisp might have influenced CLOS, but I'd like to hear more about that.