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(.module:
[lux #- not or and function]
(lux (control pipe)
(data [text]
text/format
[number]
(coll [list "list/" Functor<List> Fold<List>]))
(type abstract)))
(def: nest
(-> Text Text)
(|>> (format "\n")
(text.replace-all "\n" "\n ")))
(def: (block content)
(-> Text Text)
(format "{" (nest content) "\n" "}"))
(abstract: #export Global {} Unit)
(abstract: #export Var {} Unit)
(abstract: #export Computation {} Unit)
(abstract: #export (Expression' k)
{}
Text
(type: #export Expression (Ex [k] (Expression' k)))
(type: #export GExpression (Expression' Global))
(type: #export VExpression (Expression' Var))
(type: #export CExpression (Expression' Computation))
(def: (self-contained content)
(-> Text CExpression)
(@abstraction (format "(" content ")")))
(def: #export expression (-> Expression Text) (|>> @representation))
(def: arguments
(-> (List Expression) Text)
(|>> (list/map ..expression) (text.join-with ", ")))
(def: #export code (-> Text CExpression) (|>> @abstraction))
(def: #export var
(-> Text VExpression)
(|>> (format "$") @abstraction))
(def: #export global
(-> Text GExpression)
(|>> @abstraction))
(def: #export null
CExpression
(@abstraction "NULL"))
(def: #export bool
(-> Bool CExpression)
(|>> %b @abstraction))
(def: #export int
(-> Int CExpression)
(|>> %i @abstraction))
(def: #export float
(-> Frac CExpression)
(|>> (cond> [(f/= number.positive-infinity)]
[(new> "INF" self-contained)]
[(f/= number.negative-infinity)]
[(new> "-INF" self-contained)]
[(f/= number.not-a-number)]
[(new> "NAN" self-contained)]
## else
[%f @abstraction])))
(def: #export string
(-> Text CExpression)
(|>> %t @abstraction))
(def: #export (apply args func)
(-> (List Expression) Expression CExpression)
(self-contained
(format (@representation func) "(" (..arguments args) ")")))
(do-template [<name> <function>]
[(def: #export <name>
CExpression
(..apply (list) (..global <function>)))]
[func-num-args/0 "func_num_args"]
[func-get-args/0 "func_get_args"]
)
(do-template [<name> <function>]
[(def: #export (<name> values)
(-> (List Expression) CExpression)
(..apply values (..global <function>)))]
[array/* "array"]
)
(do-template [<name> <function>]
[(def: #export (<name> required optionals)
(-> Expression (List Expression) CExpression)
(..apply (list& required optionals) (..global <function>)))]
[array-merge/+ "array_merge"]
)
(def: #export (array/** kvs)
(-> (List [Expression Expression]) CExpression)
(self-contained
(format "array("
(|> kvs
(list/map (.function (_ [key value])
(format (@representation key) " => " (@representation value))))
(text.join-with ", "))
")")))
(do-template [<name> <function>]
[(def: #export (<name> input0)
(-> Expression CExpression)
(..apply (list input0) (..global <function>)))]
[count/1 "count"])
(do-template [<name> <function>]
[(def: #export (<name> input0 input1)
(-> Expression Expression CExpression)
(..apply (list input0 input1) (..global <function>)))]
[call-user-func-array/2 "call_user_func_array"]
[array-slice/2 "array_slice"])
(do-template [<name> <function>]
[(def: #export (<name> input0 input1 input2)
(-> Expression Expression Expression CExpression)
(..apply (list input0 input1 input2) (..global <function>)))]
[array-slice/3 "array_slice"])
## (def: (composite-literal left-delimiter right-delimiter entry-serializer)
## (All [a] (-> Text Text (-> a Text)
## (-> (List a) CExpression)))
## (function (_ entries)
## (@abstraction (format "(" left-delimiter
## (|> entries (list/map entry-serializer) (text.join-with ","))
## right-delimiter ")"))))
## (def: #export (slice from to list)
## (-> CExpression CExpression CExpression CExpression)
## (@abstraction (format "(" (@representation list)
## "[" (@representation from) ":" (@representation to) "]"
## ")")))
## (def: #export (slice-from from list)
## (-> CExpression CExpression CExpression)
## (@abstraction (format "(" (@representation list)
## "[" (@representation from) ":]"
## ")")))
## (def: #export (field name object)
## (-> Text CExpression CExpression)
## (@abstraction (format "(" (@representation object) "." name ")")))
## (def: #export (send args method object)
## (-> (List CExpression) Text CExpression CExpression)
## (|> object (field method) (apply args)))
(def: #export (nth idx array)
(-> Expression Expression CExpression)
(self-contained
(format (@representation array) "[" (@representation idx) "]")))
(def: #export (? test then else)
(-> Expression Expression Expression CExpression)
(self-contained
(format (@representation test) " ? "
(@representation then) " : "
(@representation else))))
(do-template [<name> <op>]
[(def: #export (<name> param subject)
(-> Expression Expression CExpression)
(@abstraction (format "(" (@representation subject)
" " <op> " "
(@representation param) ")")))]
## [is "is"]
[= "=="]
[< "<"]
[<= "<="]
[> ">"]
[>= ">="]
[+ "+"]
[- "-"]
[* "*"]
[/ "/"]
[% "%"]
[** "**"]
## [bit-or "|"]
## [bit-and "&"]
## [bit-xor "^"]
## [bit-shl "<<"]
## [bit-shr ">>"]
)
## (do-template [<name> <op>]
## [(def: #export (<name> param subject)
## (-> CExpression CExpression CExpression)
## (@abstraction (format "(" (@representation param)
## " " <op> " "
## (@representation subject) ")")))]
## [or "or"]
## [and "and"]
## )
## (def: #export (not subject)
## (-> CExpression CExpression)
## (@abstraction (format "(not " (@representation subject) ")")))
)
(abstract: #export Statement
{}
Text
(def: #export statement (-> Statement Text) (|>> @representation))
(def: #export (set! var value)
(-> VExpression Expression Statement)
(@abstraction
(format (..expression var) " = " (..expression value) ";")))
## (def: #export (set-nth! idx value array)
## (-> CExpression CExpression CExpression Statement)
## (@abstraction (format (expression array) "[" (expression idx) "] = " (expression value))))
(def: #export (if! test then! else!)
(-> Expression Statement Statement Statement)
(@abstraction
(format "if (" (..expression test) ")"
(block (@representation then!))
" else "
(block (@representation else!)))))
(def: #export (when! test then!)
(-> Expression Statement Statement)
(@abstraction
(format "if (" (..expression test) ") "
(block (@representation then!)))))
(def: #export (then! post! pre!)
(-> Statement Statement Statement)
(@abstraction
(format (@representation pre!)
"\n"
(@representation post!))))
## (def: #export (while! test body!)
## (-> CExpression Statement Statement)
## (@abstraction
## (format "while " (expression test) ":"
## (nest body!))))
## (def: #export (for-in! variable inputs body!)
## (-> SVariable CExpression Statement Statement)
## (@abstraction
## (format "for " (..name variable) " in " (expression inputs) ":"
## (nest body!))))
## (type: #export Except
## {#classes (List Text)
## #exception SVariable
## #handler Statement})
## (def: #export (try! body! excepts)
## (-> Statement (List Except) Statement)
## (@abstraction
## (format "try:"
## (nest body!)
## (|> excepts
## (list/map (function (_ [classes exception catch!])
## (format "\n" "except (" (text.join-with "," classes)
## ") as " (..name exception) ":"
## (nest catch!))))
## (text.join-with "")))))
(do-template [<name> <keyword>]
[(def: #export (<name> message)
(-> Expression Statement)
(@abstraction
(format <keyword> " " (..expression message) ";")))]
## [raise! "raise"]
[return! "return"]
[echo! "echo"]
)
(def: #export (function! name args body)
(-> GExpression (List VExpression) Statement Statement)
(@abstraction
(format "function " (..expression name) "(" (..arguments args) ") "
(block (@representation body)))))
)
(def: #export (function arguments body)
(-> (List VExpression) Statement CExpression)
(self-contained
(format "function " "(" (..arguments arguments) ") " (block (..statement body)))))
|