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|
(;module:
lux
(lux (control [monad #+ do])
(concurrency [atom #+ Atom])
(data [text]
text/format
(coll [list "list/" Functor<List>]
[array]
[dict #+ Dict]))
[meta]
(meta [code]
(type ["tc" check]))
[io])
(luxc ["&" base]
(lang ["la" analysis]
(analysis ["&;" common]
[";A" function]
[";A" case]
[";A" type]))))
## [Utils]
(type: #export Proc
(-> &;Analyser &;Eval (List Code) (Meta la;Analysis)))
(type: #export Bundle
(Dict Text (-> Text Proc)))
(def: #export (install name unnamed)
(-> Text (-> Text Proc)
(-> Bundle Bundle))
(dict;put name unnamed))
(def: #export (prefix prefix bundle)
(-> Text Bundle Bundle)
(|> bundle
dict;entries
(list/map (function [[key val]] [(format prefix " " key) val]))
(dict;from-list text;Hash<Text>)))
(def: #export (wrong-arity proc expected actual)
(-> Text Nat Nat Text)
(format "Wrong arity for " (%t proc) "\n"
"Expected: " (|> expected nat-to-int %i) "\n"
" Actual: " (|> actual nat-to-int %i)))
(def: (simple proc input-types output-type)
(-> Text (List Type) Type Proc)
(let [num-expected (list;size input-types)]
(function [analyse eval args]
(let [num-actual (list;size args)]
(if (n.= num-expected num-actual)
(do meta;Monad<Meta>
[argsA (monad;map @
(function [[argT argC]]
(&;with-expected-type argT
(analyse argC)))
(list;zip2 input-types args))
expected meta;expected-type
_ (&;with-type-env
(tc;check expected output-type))]
(wrap (la;procedure proc argsA)))
(&;fail (wrong-arity proc num-expected num-actual)))))))
(def: #export (nullary valueT proc)
(-> Type Text Proc)
(simple proc (list) valueT))
(def: #export (unary inputT outputT proc)
(-> Type Type Text Proc)
(simple proc (list inputT) outputT))
(def: #export (binary subjectT paramT outputT proc)
(-> Type Type Type Text Proc)
(simple proc (list subjectT paramT) outputT))
(def: #export (trinary subjectT param0T param1T outputT proc)
(-> Type Type Type Type Text Proc)
(simple proc (list subjectT param0T param1T) outputT))
## [Analysers]
## "lux is" represents reference/pointer equality.
(def: (lux-is proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
((binary varT varT Bool proc)
analyse eval args)))))
## "lux try" provides a simple way to interact with the host platform's
## error-handling facilities.
(def: (lux-try proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
(case args
(^ (list opC))
(do meta;Monad<Meta>
[opA (&;with-expected-type (type (io;IO varT))
(analyse opC))
outputT (&;with-type-env
(tc;clean var-id (type (Either Text varT))))
expected meta;expected-type
_ (&;with-type-env
(tc;check expected outputT))]
(wrap (la;procedure proc (list opA))))
_
(&;fail (wrong-arity proc +1 (list;size args))))))))
(def: (lux//function proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
(case args
(^ (list [_ (#;Symbol ["" func-name])]
[_ (#;Symbol ["" arg-name])]
body))
(functionA;analyse-function analyse func-name arg-name body)
_
(&;fail (wrong-arity proc +3 (list;size args))))))))
(def: (lux//case proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
(case args
(^ (list input [_ (#;Record branches)]))
(caseA;analyse-case analyse input branches)
_
(&;fail (wrong-arity proc +2 (list;size args))))))))
(do-template [<name> <analyser>]
[(def: (<name> proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
(case args
(^ (list typeC valueC))
(<analyser> analyse eval typeC valueC)
_
(&;fail (wrong-arity proc +2 (list;size args))))))))]
[lux//check typeA;analyse-check]
[lux//coerce typeA;analyse-coerce])
(def: (clean-type inputT)
(-> Type (tc;Check Type))
(case inputT
(#;Primitive name paramsT+)
(do tc;Monad<Check>
[paramsT+' (monad;map @ clean-type paramsT+)]
(wrap (#;Primitive name paramsT+')))
(^or #;Void #;Unit (#;Bound _) (#;Ex _) (#;Named _))
(:: tc;Monad<Check> wrap inputT)
(^template [<tag>]
(<tag> leftT rightT)
(do tc;Monad<Check>
[leftT' (clean-type leftT)
rightT' (clean-type rightT)]
(wrap (<tag> leftT' rightT'))))
([#;Sum] [#;Product] [#;Function] [#;Apply])
(#;Var id)
(do tc;Monad<Check>
[? (tc;concrete? id)]
(if ?
(do @
[actualT (tc;read id)]
(clean-type actualT))
(wrap inputT)))
(^template [<tag>]
(<tag> envT+ unquantifiedT)
(do tc;Monad<Check>
[envT+' (monad;map @ clean-type envT+)]
(wrap (<tag> envT+' unquantifiedT))))
([#;UnivQ] [#;ExQ])
))
(def: (lux//check//type proc)
(-> Text Proc)
(function [analyse eval args]
(case args
(^ (list valueC))
(do meta;Monad<Meta>
[valueA (&;with-expected-type Type
(analyse valueC))
expected meta;expected-type
_ (&;with-type-env
(tc;check expected Type))]
(wrap valueA))
_
(&;fail (wrong-arity proc +1 (list;size args))))))
(def: lux-procs
Bundle
(|> (dict;new text;Hash<Text>)
(install "is" lux-is)
(install "try" lux-try)
(install "function" lux//function)
(install "case" lux//case)
(install "check" lux//check)
(install "coerce" lux//coerce)
(install "check type" lux//check//type)))
(def: io-procs
Bundle
(<| (prefix "io")
(|> (dict;new text;Hash<Text>)
(install "log" (unary Text Unit))
(install "error" (unary Text Bottom))
(install "exit" (unary Nat Bottom))
(install "current-time" (nullary Int)))))
(def: bit-procs
Bundle
(<| (prefix "bit")
(|> (dict;new text;Hash<Text>)
(install "count" (unary Nat Nat))
(install "and" (binary Nat Nat Nat))
(install "or" (binary Nat Nat Nat))
(install "xor" (binary Nat Nat Nat))
(install "shift-left" (binary Nat Nat Nat))
(install "unsigned-shift-right" (binary Nat Nat Nat))
(install "shift-right" (binary Int Nat Int))
)))
(def: nat-procs
Bundle
(<| (prefix "nat")
(|> (dict;new text;Hash<Text>)
(install "+" (binary Nat Nat Nat))
(install "-" (binary Nat Nat Nat))
(install "*" (binary Nat Nat Nat))
(install "/" (binary Nat Nat Nat))
(install "%" (binary Nat Nat Nat))
(install "=" (binary Nat Nat Bool))
(install "<" (binary Nat Nat Bool))
(install "min" (nullary Nat))
(install "max" (nullary Nat))
(install "to-int" (unary Nat Int))
(install "to-text" (unary Nat Text)))))
(def: int-procs
Bundle
(<| (prefix "int")
(|> (dict;new text;Hash<Text>)
(install "+" (binary Int Int Int))
(install "-" (binary Int Int Int))
(install "*" (binary Int Int Int))
(install "/" (binary Int Int Int))
(install "%" (binary Int Int Int))
(install "=" (binary Int Int Bool))
(install "<" (binary Int Int Bool))
(install "min" (nullary Int))
(install "max" (nullary Int))
(install "to-nat" (unary Int Nat))
(install "to-frac" (unary Int Frac)))))
(def: deg-procs
Bundle
(<| (prefix "deg")
(|> (dict;new text;Hash<Text>)
(install "+" (binary Deg Deg Deg))
(install "-" (binary Deg Deg Deg))
(install "*" (binary Deg Deg Deg))
(install "/" (binary Deg Deg Deg))
(install "%" (binary Deg Deg Deg))
(install "=" (binary Deg Deg Bool))
(install "<" (binary Deg Deg Bool))
(install "scale" (binary Deg Nat Deg))
(install "reciprocal" (binary Deg Nat Deg))
(install "min" (nullary Deg))
(install "max" (nullary Deg))
(install "to-frac" (unary Deg Frac)))))
(def: frac-procs
Bundle
(<| (prefix "frac")
(|> (dict;new text;Hash<Text>)
(install "+" (binary Frac Frac Frac))
(install "-" (binary Frac Frac Frac))
(install "*" (binary Frac Frac Frac))
(install "/" (binary Frac Frac Frac))
(install "%" (binary Frac Frac Frac))
(install "=" (binary Frac Frac Bool))
(install "<" (binary Frac Frac Bool))
(install "smallest" (nullary Frac))
(install "min" (nullary Frac))
(install "max" (nullary Frac))
(install "not-a-number" (nullary Frac))
(install "positive-infinity" (nullary Frac))
(install "negative-infinity" (nullary Frac))
(install "to-deg" (unary Frac Deg))
(install "to-int" (unary Frac Int))
(install "encode" (unary Frac Text))
(install "decode" (unary Text (type (Maybe Frac)))))))
(def: text-procs
Bundle
(<| (prefix "text")
(|> (dict;new text;Hash<Text>)
(install "=" (binary Text Text Bool))
(install "<" (binary Text Text Bool))
(install "concat" (binary Text Text Text))
(install "index" (trinary Text Text Nat (type (Maybe Nat))))
(install "size" (unary Text Nat))
(install "hash" (unary Text Nat))
(install "replace-once" (trinary Text Text Text Text))
(install "replace-all" (trinary Text Text Text Text))
(install "char" (binary Text Nat Nat))
(install "clip" (trinary Text Nat Nat Text))
)))
(def: (array-get proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
((binary Nat (type (Array varT)) varT proc)
analyse eval args)))))
(def: (array-put proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
((trinary Nat varT (type (Array varT)) (type (Array varT)) proc)
analyse eval args)))))
(def: (array-remove proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
((binary Nat (type (Array varT)) (type (Array varT)) proc)
analyse eval args)))))
(def: array-procs
Bundle
(<| (prefix "array")
(|> (dict;new text;Hash<Text>)
(install "new" (unary Nat Array))
(install "get" array-get)
(install "put" array-put)
(install "remove" array-remove)
(install "size" (unary (type (Ex [a] (Array a))) Nat))
)))
(def: math-procs
Bundle
(<| (prefix "math")
(|> (dict;new text;Hash<Text>)
(install "cos" (unary Frac Frac))
(install "sin" (unary Frac Frac))
(install "tan" (unary Frac Frac))
(install "acos" (unary Frac Frac))
(install "asin" (unary Frac Frac))
(install "atan" (unary Frac Frac))
(install "cosh" (unary Frac Frac))
(install "sinh" (unary Frac Frac))
(install "tanh" (unary Frac Frac))
(install "exp" (unary Frac Frac))
(install "log" (unary Frac Frac))
(install "root2" (unary Frac Frac))
(install "root3" (unary Frac Frac))
(install "ceil" (unary Frac Frac))
(install "floor" (unary Frac Frac))
(install "round" (unary Frac Frac))
(install "atan2" (binary Frac Frac Frac))
(install "pow" (binary Frac Frac Frac))
)))
(def: (atom-new proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
(case args
(^ (list initC))
(do meta;Monad<Meta>
[initA (&;with-expected-type varT
(analyse initC))
outputT (&;with-type-env
(tc;clean var-id (type (Atom varT))))
expected meta;expected-type
_ (&;with-type-env
(tc;check expected outputT))]
(wrap (la;procedure proc (list initA))))
_
(&;fail (wrong-arity proc +1 (list;size args))))))))
(def: (atom-read proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
((unary (type (Atom varT)) varT proc)
analyse eval args)))))
(def: (atom-compare-and-swap proc)
(-> Text Proc)
(function [analyse eval args]
(&common;with-var
(function [[var-id varT]]
((trinary varT varT (type (Atom varT)) Bool proc)
analyse eval args)))))
(def: atom-procs
Bundle
(<| (prefix "atom")
(|> (dict;new text;Hash<Text>)
(install "new" atom-new)
(install "read" atom-read)
(install "compare-and-swap" atom-compare-and-swap)
)))
(def: process-procs
Bundle
(<| (prefix "process")
(|> (dict;new text;Hash<Text>)
(install "concurrency-level" (nullary Nat))
(install "future" (unary (type (io;IO Top)) Unit))
(install "schedule" (binary Nat (type (io;IO Top)) Unit))
)))
(def: #export procedures
Bundle
(<| (prefix "lux")
(|> (dict;new text;Hash<Text>)
(dict;merge lux-procs)
(dict;merge bit-procs)
(dict;merge nat-procs)
(dict;merge int-procs)
(dict;merge deg-procs)
(dict;merge frac-procs)
(dict;merge text-procs)
(dict;merge array-procs)
(dict;merge math-procs)
(dict;merge atom-procs)
(dict;merge process-procs)
(dict;merge io-procs))))
|