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deque-blog/dsl_arithmetic_1_eval_test.hs

Created January 17, 2017 17:23
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dsl_arithmetic_1_eval_test.hs
> let e = add [ cst(1)
, cst(2)
, mul [cst(0), var("x"), var("y")]
, mul [cst(1), var("y"), cst(2)]
, add [cst(0), var("x") ]]
> let env = Map.fromList [("x", 1), ("y", 2)]
> prn e
"(+ 1 2 (* 0 x y) (* 1 y 2) (+ 0 x))"
> eval env e
8
-- (+ 1 2 (* 0 1 2) (* 1 2 2) (+ 0 1))
-- (+ 3 4 1)
-- 8
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