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(import java.lang.System)
## (require "./another" as another)
(definterface Function
(: apply (-> [java.lang.Object] java.lang.Object)))
(defclass Tuple0 [])
(defclass Tuple1 [[java.lang.Object _0]])
(defclass Tuple2 [[java.lang.Object _0] [java.lang.Object _1]])
(defclass Variant [[java.lang.String tag] [java.lang.Object value]])
(def (++ xs ys)
(case xs
#Nil
ys
(#Cons x xs*)
(#Cons x (++ xs* ys))))
(def (template elems)
(case elems
#Nil
elems
(#Cons head tail)
(case head
(#Form (#Cons (#Ident "~") (#Cons unquoted #Nil)))
(#Cons unquoted (template tail))
(#Form (#Cons (#Ident "~@") (#Cons spliced #Nil)))
(#Cons (#Ident "++") (#Cons spliced (template tail)))
_
(#Cons head (template tail))
)))
(defmacro (' form)
(case form
(#Cons form* #Nil)
(case form*
(#Form elems)
(#Quote (#Form (template elems)))
_
(#Quote form*)
)))
## Utils
(def (fail* message)
(#Failure message))
(def (return* state value)
(#Ok state value))
(def (fail message)
(lambda [state]
(#Failure message)))
(def (return value)
(lambda [state]
(#Ok state value)))
(def (bind m-value step)
(lambda [state]
(let inputs (m-value state)
(case inputs
(#Ok ?state ?datum)
(step ?datum ?state)
_
inputs))))
## Ideally, this is what I want...
## (exec [yolo lol
## #let [foo (bar 1 2 3)]
## #when true]
## (meme yolo foo))
#( (def (+ x y)
(jvm/i+ x y))
(def inc (+ 1))
(def (fold f init values)
(case values
#Nil
init
(#Cons x xs)
(fold f (f init x) xs)))
(def length (fold inc 0))
(def (mod dividend divisor)
(jvm/imod dividend divisor))
(def (= x y)
(.equals x y))
(def (as-pairs list)
(case list
(#Cons x (#Cons y list*))
(#Cons [x y] (as-pairs list*))
_
#Nil))
(defmacro (exec tokens)
(case tokens
(#Cons (#Tuple steps) (#Cons return #Nil))
(if (= 0 (mod (length steps) 2))
(fold (lambda [inner pair]
(case pair
[label computation]
(` (bind (~ computation)
(lambda [(~ label)] (~ inner))))))
return
(as-pairs steps))
(#Text "Oh no!")))) )#
## Program
(def (main args)
(case (' ((~ "Doing a slight makeover.")))
(#Form (#Cons (#Text text) #Nil))
(:: (:: System out) (println text))
))
#(
(defmacro (::+ pieces)
(case pieces
(#Cons init #Nil)
init
(#Cons init (#Cons access others))
(' (::+ (:: (~ init) (~ access)) (~@ others)))
))
(def (main args)
(if true
(let f (lambda [x] (lambda [y] (x y)))
(let g (lambda [x] x)
(::+ System out (println (f g "WE'VE GOT CLOSURES!")))))
(:: (:: System out) (println "FALSE"))))
(def (main args)
(if true
(case (++ (#Cons "Pattern" #Nil) (#Cons "Matching" #Nil))
(#Cons "Pattern" (#Cons second #Nil))
(do (:: (:: System out) (println "Branch #1"))
(:: (:: System out) (println second)))
(#Cons first (#Cons second #Nil))
(do (:: (:: System out) (println "Branch #2"))
(:: (:: System out) (println first))
(:: (:: System out) (println second))))
(:: (:: System out) (println "FALSE"))))
(def (main args)
(case (template (#Cons (#Cons (#Symbol "~@") (#Cons (#Symbol "Pattern") #Nil)) #Nil)
## (#Cons (#Cons (#Symbol "~") (#Cons (#Symbol "Pattern") #Nil)) #Nil)
)
(#Cons word #Nil)
(do (:: (:: System out) (println "Branch #1"))
(:: (:: System out) (println word)))
(#Cons (#Symbol op) spliced)
(do (:: (:: System out) (println "Branch #2"))
(:: (:: System out) (println op)))
))
(def (main args)
(case (' "YOLO")
(#Text text)
(:: (:: System out) (println text))))
(def (main args)
(case (' ((~ "TROLOLOL")))
(#Form (#Cons (#Text text) #Nil))
(:: (:: System out) (println text))
))
)#
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