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|
(.module:
[lux (#- Code or and function if cond undefined for comment not int)
[control
[pipe (#+ case>)]]
[data
[number
["." frac]]
["." text
["%" format (#+ format)]]
[collection
["." list ("#@." functor fold)]]]
[macro
["." template]]
[type
abstract]])
(def: argument (text.enclose ["(" ")"]))
(def: element (text.enclose ["[" "]"]))
(abstract: #export (Code brand)
{}
Text
(def: #export code
(-> (Code Any) Text)
(|>> :representation))
(template [<type> <brand> <super>+]
[(abstract: #export (<brand> brand) {} Any)
(`` (type: #export <type> (|> Any <brand> (~~ (template.splice <super>+)))))]
[Expression Expression' [Code]]
[Computation Computation' [Expression' Code]]
[Location Location' [Computation' Expression' Code]]
[Statement Statement' [Code]]
)
(template [<type> <brand> <super>+]
[(abstract: #export <brand> {} Any)
(`` (type: #export <type> (|> <brand> (~~ (template.splice <super>+)))))]
[Var Var' [Location' Computation' Expression' Code]]
[Access Access' [Location' Computation' Expression' Code]]
[Literal Literal' [Computation' Expression' Code]]
[Loop Loop' [Statement' Code]]
[Label Label' [Code]]
)
(template [<name> <literal>]
[(def: #export <name> Literal (:abstraction <literal>))]
[null "null"]
[undefined "undefined"]
)
(def: #export boolean
(-> Bit Literal)
(|>> (case>
#0 "false"
#1 "true")
:abstraction))
(def: #export (number value)
(-> Frac Literal)
(:abstraction
(.cond (frac.not-a-number? value)
"NaN"
(f/= frac.positive-infinity value)
"Infinity"
(f/= frac.negative-infinity value)
"-Infinity"
## else
(|> value %.frac ..argument))))
(def: sanitize
(-> Text Text)
(`` (|>> (~~ (template [<find> <replace>]
[(text.replace-all <find> <replace>)]
["\" "\\"]
[text.tab "\t"]
[text.vertical-tab "\v"]
[text.null "\0"]
[text.back-space "\b"]
[text.form-feed "\f"]
[text.new-line "\n"]
[text.carriage-return "\r"]
[text.double-quote (format "\" text.double-quote)]
))
)))
(def: #export string
(-> Text Literal)
(|>> ..sanitize
(text.enclose [text.double-quote text.double-quote])
:abstraction))
(def: argument-separator ", ")
(def: field-separator ": ")
(def: statement-suffix ";")
(def: #export array
(-> (List Expression) Computation)
(|>> (list@map ..code)
(text.join-with ..argument-separator)
..element
:abstraction))
(def: #export var
(-> Text Var)
(|>> :abstraction))
(def: #export (at index array-or-object)
(-> Expression Expression Access)
(:abstraction (format (:representation array-or-object) (..element (:representation index)))))
(def: #export (the field object)
(-> Text Expression Access)
(:abstraction (format (:representation object) "." field)))
(def: #export (apply/* function inputs)
(-> Expression (List Expression) Computation)
(|> inputs
(list@map ..code)
(text.join-with ..argument-separator)
..argument
(format (:representation function))
:abstraction))
(def: #export (do method inputs object)
(-> Text (List Expression) Expression Computation)
(apply/* (..the method object) inputs))
(def: #export object
(-> (List [Text Expression]) Computation)
(|>> (list@map (.function (_ [key val])
(format (:representation (..string key)) ..field-separator (:representation val))))
(text.join-with ..argument-separator)
(text.enclose ["{" "}"])
..argument
:abstraction))
(def: #export (, pre post)
(-> Expression Expression Computation)
(|> (format (:representation pre) ..argument-separator (:representation post))
..argument
:abstraction))
(def: #export (then pre post)
(-> Statement Statement Statement)
(:abstraction (format (:representation pre)
text.new-line
(:representation post))))
## (def: indent
## (-> Text Text)
## (text.replace-all text.new-line (format text.new-line text.tab)))
(def: block
(-> Statement Text)
(let [close (format text.new-line "}")]
(|>> :representation
(format text.new-line)
## ..indent
(text.enclose ["{"
close]))))
(def: #export (function name inputs body)
(-> Var (List Var) Statement Computation)
(|> body
..block
(format "function " (:representation name)
(|> inputs
(list@map ..code)
(text.join-with ..argument-separator)
..argument)
" ")
..argument
:abstraction))
(def: #export (closure inputs body)
(-> (List Var) Statement Computation)
(|> body
..block
(format "function"
(|> inputs
(list@map ..code)
(text.join-with ..argument-separator)
..argument)
" ")
..argument
:abstraction))
(template [<name> <op>]
[(def: #export (<name> param subject)
(-> Expression Expression Computation)
(|> (format (:representation subject) " " <op> " " (:representation param))
..argument
:abstraction))]
[= "==="]
[< "<"]
[<= "<="]
[> ">"]
[>= ">="]
[+ "+"]
[- "-"]
[* "*"]
[/ "/"]
[% "%"]
[left-shift "<<"]
[arithmetic-right-shift ">>"]
[logic-right-shift ">>>"]
[or "||"]
[and "&&"]
[bit-xor "^"]
[bit-or "|"]
[bit-and "&"]
)
(template [<name> <prefix>]
[(def: #export <name>
(-> Expression Computation)
(|>> :representation (text.prefix <prefix>) ..argument :abstraction))]
[not "!"]
[bit-not "~"]
[negate "-"]
)
(template [<name> <input> <format>]
[(def: #export (<name> value)
{#.doc "A 32-bit integer expression."}
(-> <input> Computation)
(:abstraction (..argument (format (<format> value) "|0"))))]
[to-i32 Expression :representation]
[i32 Int %.int]
)
(def: #export (int value)
(-> Int Literal)
(:abstraction (.if (i/< +0 value)
(%.int value)
(%.nat (.nat value)))))
(def: #export (? test then else)
(-> Expression Expression Expression Computation)
(|> (format (:representation test)
" ? " (:representation then)
" : " (:representation else))
..argument
:abstraction))
(def: #export type-of
(-> Expression Computation)
(|>> :representation
(format "typeof ")
..argument
:abstraction))
(def: #export (new constructor inputs)
(-> Expression (List Expression) Computation)
(|> (format "new " (:representation constructor)
(|> inputs
(list@map ..code)
(text.join-with ..argument-separator)
..argument))
..argument
:abstraction))
(def: #export statement
(-> Expression Statement)
(|>> :representation (text.suffix ..statement-suffix) :abstraction))
(def: #export use-strict
Statement
(:abstraction (format text.double-quote "use strict" text.double-quote ..statement-suffix)))
(def: #export (declare name)
(-> Var Statement)
(:abstraction (format "var " (:representation name) ..statement-suffix)))
(def: #export (define name value)
(-> Var Expression Statement)
(:abstraction (format "var " (:representation name) " = " (:representation value) ..statement-suffix)))
(def: #export (set' name value)
(-> Location Expression Expression)
(:abstraction (..argument (format (:representation name) " = " (:representation value)))))
(def: #export (set name value)
(-> Location Expression Statement)
(:abstraction (format (:representation name) " = " (:representation value) ..statement-suffix)))
(def: #export (throw message)
(-> Expression Statement)
(:abstraction (format "throw " (:representation message) ..statement-suffix)))
(def: #export (return value)
(-> Expression Statement)
(:abstraction (format "return " (:representation value) ..statement-suffix)))
(def: #export (delete' value)
(-> Location Expression)
(:abstraction (format "delete " (:representation value))))
(def: #export (delete value)
(-> Location Statement)
(:abstraction (format (:representation (delete' value)) ..statement-suffix)))
(def: #export (if test then! else!)
(-> Expression Statement Statement Statement)
(:abstraction (format "if(" (:representation test) ") "
(..block then!)
" else "
(..block else!))))
(def: #export (when test then!)
(-> Expression Statement Statement)
(:abstraction (format "if(" (:representation test) ") "
(..block then!))))
(def: #export (while test body)
(-> Expression Statement Loop)
(:abstraction (format "while(" (:representation test) ") "
(..block body))))
(def: #export (do-while test body)
(-> Expression Statement Loop)
(:abstraction (format "do " (..block body)
" while(" (:representation test) ")" ..statement-suffix)))
(def: #export (try body [exception catch])
(-> Statement [Var Statement] Statement)
(:abstraction (format "try "
(..block body)
" catch(" (:representation exception) ") "
(..block catch))))
(def: #export (for var init condition update iteration)
(-> Var Expression Expression Expression Statement Loop)
(:abstraction (format "for(" (:representation (..define var init))
" " (:representation condition)
..statement-suffix " " (:representation update)
")"
(..block iteration))))
(def: #export label
(-> Text Label)
(|>> :abstraction))
(def: #export (with-label label loop)
(-> Label Loop Statement)
(:abstraction (format (:representation label) ": " (:representation loop))))
(template [<keyword> <0> <1>]
[(def: #export <0>
Statement
(:abstraction (format <keyword> ..statement-suffix)))
(def: #export (<1> label)
(-> Label Statement)
(:abstraction (format <keyword> " " (:representation label) ..statement-suffix)))]
["break" break break-at]
["continue" continue continue-at]
)
(template [<name> <js>]
[(def: #export <name>
(-> Location Expression)
(|>> :representation
(text.suffix <js>)
:abstraction))]
[++ "++"]
[-- "--"]
)
(def: #export (comment commentary on)
(All [kind] (-> Text (Code kind) (Code kind)))
(:abstraction (format "/* " commentary " */" " " (:representation on))))
(def: #export (switch input cases default)
(-> Expression (List [(List Literal) Statement]) (Maybe Statement) Statement)
(:abstraction (format "switch (" (:representation input) ")" text.new-line
(|> (format (|> cases
(list@map (.function (_ [when then])
(format (|> when
(list@map (|>> :representation (text.enclose ["case " ":"])))
(text.join-with text.new-line))
text.new-line
(:representation then))))
(text.join-with text.new-line))
text.new-line
(case default
(#.Some default)
(format "default:" text.new-line
(:representation default))
#.None ""))
:abstraction
..block))))
)
(def: #export (cond clauses else!)
(-> (List [Expression Statement]) Statement Statement)
(list@fold (.function (_ [test then!] next!)
(..if test then! next!))
else!
(list.reverse clauses)))
(template [<apply> <arg>+ <type>+ <function>+]
[(`` (def: #export (<apply> function)
(-> Expression (~~ (template.splice <type>+)) Computation)
(.function (_ (~~ (template.splice <arg>+)))
(..apply/* function (list (~~ (template.splice <arg>+)))))))
(`` (template [<definition> <function>]
[(def: #export <definition> (<apply> (..var <function>)))]
(~~ (template.splice <function>+))))]
[apply/1 [_0] [Expression]
[[not-a-number? "isNaN"]]]
[apply/2 [_0 _1] [Expression Expression]
[]]
[apply/3 [_0 _1 _2] [Expression Expression Expression]
[]]
)
|