Paul Bauer pmbauer

collects rare UUIDs, computes @DataDog

ckirkendall / clojure-match.clj

Created June 15, 2012 02:26 — forked from bkyrlach/Expression.fs

Language Compare F#, Ocaml, Scala, Clojure, Ruby and Haskell - Simple AST example

	(use '[clojure.core.match :only [match]])

	(defn evaluate [env [sym x y]]
	(match [sym]
	['Number] x
	['Add] (+ (evaluate env x) (evaluate env y))
	['Multiply] (* (evaluate env x) (evaluate env y))
	['Variable] (env x)))

	(def environment {"a" 3, "b" 4, "c" 5})