secd

A simple implementation of the SECD abstract machine (https://en.wikipedia.org/wiki/SECD_machine) (by zachallaun)

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better secd alternative or higher similarity.

secd reviews and mentions

Posts with mentions or reviews of secd. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-05.
  • Secd: A silly implementation of the SECD machine
    1 project | /r/hypeurls | 7 May 2023
    4 projects | news.ycombinator.com | 5 May 2023
    Arguably, it's a bit silly, in the same way that the one page Lisp definitions written in Lisp are a bit silly. It's a naive implementation. It basically maps the SECD machine, directly to the underlying Clojure environment, which being Lisp, is very close in semantics. (Since SECD was first intended to implement Lisp.)

    Consider how it evaluates a variable in an environment: https://github.com/zachallaun/secd/blob/master/src/secd/mach... It's the simplest, and worst, solution -- iterate over the linked list from the start until you find the value you want. Performance degrades exponentially the more variables you have. In a more "serious" interpreter or compiler, you'd want to do a transform at some point, and slip in the value directly, if possible. And if not, you want to call out to a fast lookup method, like a hash table or balanced tree.

Stats

Basic secd repo stats
3
118
10.0
about 11 years ago

The primary programming language of secd is Clojure.


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