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|
(.module:
lux
(lux (control [monad #+ do]
["ex" exception #+ exception:]
["p" parser])
(data ["e" error]
[text]
text/format
(coll [list "list/" Functor<List>]
(dictionary ["dict" unordered #+ Dict])))
[macro #+ with-gensyms]
(macro [code]
["s" syntax #+ syntax:])
[host])
(luxc ["&" lang]
(lang ["la" analysis]
["ls" synthesis]
(host [lua #+ Lua Expression Statement])))
[///]
(/// [".T" runtime]
[".T" case]
[".T" function]
[".T" loop]))
## [Types]
(type: #export Translator
(-> ls.Synthesis (Meta Expression)))
(type: #export Proc
(-> Translator (List ls.Synthesis) (Meta Expression)))
(type: #export Bundle
(Dict Text Proc))
(syntax: (Vector {size s.nat} elemT)
(wrap (list (` [(~+ (list.repeat size elemT))]))))
(type: #export Nullary (-> (Vector +0 Expression) Expression))
(type: #export Unary (-> (Vector +1 Expression) Expression))
(type: #export Binary (-> (Vector +2 Expression) Expression))
(type: #export Trinary (-> (Vector +3 Expression) Expression))
(type: #export Variadic (-> (List Expression) Expression))
## [Utils]
(def: #export (install name unnamed)
(-> Text (-> Text Proc)
(-> Bundle Bundle))
(dict.put name (unnamed name)))
(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: (wrong-arity proc expected actual)
(-> Text Nat Nat Text)
(format "Wrong number of arguments for " (%t proc) "\n"
"Expected: " (|> expected .int %i) "\n"
" Actual: " (|> actual .int %i)))
(syntax: (arity: {name s.local-symbol} {arity s.nat})
(with-gensyms [g_ g!proc g!name g!translate g!inputs]
(do @
[g!input+ (monad.seq @ (list.repeat arity (macro.gensym "input")))]
(wrap (list (` (def: #export ((~ (code.local-symbol name)) (~ g!proc))
(-> (-> (..Vector (~ (code.nat arity)) Expression) Expression)
(-> Text ..Proc))
(function ((~ g_ ) (~ g!name))
(function ((~ g_ ) (~ g!translate) (~ g!inputs))
(case (~ g!inputs)
(^ (list (~+ g!input+)))
(do macro.Monad<Meta>
[(~+ (|> g!input+
(list/map (function (_ g!input)
(list g!input (` ((~ g!translate) (~ g!input))))))
list.concat))]
((~' wrap) ((~ g!proc) [(~+ g!input+)])))
(~' _)
(macro.fail (wrong-arity (~ g!name) +1 (list.size (~ g!inputs))))))))))))))
(arity: nullary +0)
(arity: unary +1)
(arity: binary +2)
(arity: trinary +3)
(def: #export (variadic proc)
(-> Variadic (-> Text Proc))
(function (_ proc-name)
(function (_ translate inputsS)
(do macro.Monad<Meta>
[inputsI (monad.map @ translate inputsS)]
(wrap (proc inputsI))))))
## [Procedures]
## [[Lux]]
(def: (lux//is [leftO rightO])
Binary
(lua.= leftO rightO))
(def: (lux//if [testO thenO elseO])
Trinary
(caseT.translate-if testO thenO elseO))
(def: (lux//try riskyO)
Unary
(runtimeT.lux//try riskyO))
(exception: #export (Wrong-Syntax {message Text})
message)
(def: #export (wrong-syntax procedure args)
(-> Text (List ls.Synthesis) Text)
(format "Procedure: " procedure "\n"
"Arguments: " (%code (code.tuple args))))
(def: lux//loop
(-> Text Proc)
(function (_ proc-name)
(function (_ translate inputsS)
(case (s.run inputsS ($_ p.seq s.nat (s.tuple (p.many s.any)) s.any))
(#e.Success [offset initsS+ bodyS])
(loopT.translate-loop translate offset initsS+ bodyS)
(#e.Error error)
(&.throw Wrong-Syntax (wrong-syntax proc-name inputsS)))
)))
(def: lux//recur
(-> Text Proc)
(function (_ proc-name)
(function (_ translate inputsS)
(loopT.translate-recur translate inputsS))))
## [[Bits]]
(do-template [<name> <op>]
[(def: (<name> [subjectO paramO])
Binary
(<op> paramO subjectO))]
[bit//and lua.bit-and]
[bit//or lua.bit-or]
[bit//xor lua.bit-xor]
)
(do-template [<name> <op>]
[(def: (<name> [subjectO paramO])
Binary
(<op> paramO subjectO))]
[bit//left-shift lua.bit-shl]
[bit//arithmetic-right-shift lua.bit-shr]
[bit//logical-right-shift runtimeT.bit//logical-right-shift]
)
## [[Arrays]]
(def: (array//new sizeO)
Unary
(runtimeT.array//new sizeO))
(def: (array//get [arrayO idxO])
Binary
(runtimeT.array//get arrayO idxO))
(def: (array//put [arrayO idxO elemO])
Trinary
(runtimeT.array//put arrayO idxO elemO))
(def: (array//remove [arrayO idxO])
Binary
(runtimeT.array//put arrayO idxO runtimeT.unit))
(def: array//size
Unary
lua.length)
## [[Numbers]]
(host.import: java/lang/Double
(#static MIN_VALUE Double)
(#static MAX_VALUE Double)
(#static NaN Double)
(#static POSITIVE_INFINITY Double)
(#static NEGATIVE_INFINITY Double))
(do-template [<name> <const> <encode>]
[(def: (<name> _)
Nullary
(<encode> <const>))]
[frac//smallest Double::MIN_VALUE lua.float]
[frac//min (f/* -1.0 Double::MAX_VALUE) lua.float]
[frac//max Double::MAX_VALUE lua.float]
)
(do-template [<name> <expression>]
[(def: (<name> _)
Nullary
<expression>)]
[int//min "math.mininteger"]
[int//max "math.maxinteger"]
)
(do-template [<name> <op>]
[(def: (<name> [subjectO paramO])
Binary
(<op> paramO subjectO))]
[int//add lua.+]
[int//sub lua.-]
[int//mul lua.*]
[int//div lua.//]
[int//rem lua.%]
)
(do-template [<name> <op>]
[(def: (<name> [subjectO paramO])
Binary
(<op> paramO subjectO))]
[frac//add lua.+]
[frac//sub lua.-]
[frac//mul lua.*]
[frac//div lua./]
[frac//rem lua.%]
[frac//= lua.=]
[frac//< lua.<]
[text//= lua.=]
[text//< lua.<]
)
(do-template [<name> <cmp>]
[(def: (<name> [subjectO paramO])
Binary
(<cmp> paramO subjectO))]
[int//= lua.=]
[int//< lua.<]
)
(def: frac//encode
Unary
(|>> (list) (lua.apply "tostring")))
(def: (frac//decode inputO)
Unary
(lux//try (lua.function (list)
(lua.return! (lua.apply "tonumber" (list inputO))))))
(do-template [<name> <divisor>]
[(def: (<name> inputO)
Unary
(lua./ <divisor> inputO))]
[int//to-frac (lua.float 1.0)]
)
(do-template [<name> <transform>]
[(def: (<name> inputO)
Unary
(|> inputO <transform>))]
[frac//to-int (<| (lua.apply "math.floor") (list))]
[text//hash runtimeT.text//hash]
)
(def: int//char
Unary
(|>> (list) (lua.apply "string.char")))
## [[Text]]
(do-template [<name> <op>]
[(def: <name>
Unary
(|>> (list) (lua.apply <op>)))]
[text//size "string.len"]
)
(def: (text//concat [subjectO paramO])
Binary
(format "(" subjectO " .. " paramO ")"))
(def: (text//char [subjectO paramO])
Binary
(runtimeT.text//char subjectO paramO))
(do-template [<name> <runtime>]
[(def: (<name> [subjectO paramO extraO])
Trinary
(<runtime> subjectO paramO extraO))]
[text//clip runtimeT.text//clip]
[text//index runtimeT.text//index]
)
## [[Math]]
(do-template [<name> <method>]
[(def: (<name> inputO)
Unary
(lua.apply <method> (list inputO)))]
[math//cos "math.cos"]
[math//sin "math.sin"]
[math//tan "math.tan"]
[math//acos "math.acos"]
[math//asin "math.asin"]
[math//atan "math.atan"]
[math//exp "math.exp"]
[math//log "math.log"]
[math//ceil "math.ceil"]
[math//floor "math.floor"]
)
(def: (math//pow [inputO paramO])
Binary
(lua.apply "math.pow" (list inputO paramO)))
## [[IO]]
(def: (io//log messageO)
Unary
(lua.or (lua.apply "print" (list messageO))
runtimeT.unit))
(def: io//error
Unary
lua.error)
(def: io//exit
Unary
(|>> (list) (lua.apply "os.exit")))
(def: (io//current-time [])
Nullary
(|> (lua.apply "os.time" (list))
(lua.* (lua.int 1_000))))
## [[Atoms]]
(def: atom//new
Unary
(|>> [runtimeT.atom//field] (list) lua.table))
(def: atom//read
Unary
(lua.nth (lua.string runtimeT.atom//field)))
(def: (atom//compare-and-swap [atomO oldO newO])
Trinary
(runtimeT.atom//compare-and-swap atomO oldO newO))
## [[Box]]
(def: box//new
Unary
(|>> (list) lua.array))
(def: box//read
Unary
(lua.nth (lua.int 1)))
(def: (box//write [valueO boxO])
Binary
(runtimeT.box//write valueO boxO))
## [[Processes]]
(def: (process//parallelism-level [])
Nullary
(lua.int 1))
(def: (process//schedule [milli-secondsO procedureO])
Binary
(runtimeT.process//schedule milli-secondsO procedureO))
## [Bundles]
(def: lux-procs
Bundle
(|> (dict.new text.Hash<Text>)
(install "is" (binary lux//is))
(install "try" (unary lux//try))
(install "if" (trinary lux//if))
(install "loop" lux//loop)
(install "recur" lux//recur)
))
(def: bit-procs
Bundle
(<| (prefix "bit")
(|> (dict.new text.Hash<Text>)
(install "and" (binary bit//and))
(install "or" (binary bit//or))
(install "xor" (binary bit//xor))
(install "left-shift" (binary bit//left-shift))
(install "logical-right-shift" (binary bit//logical-right-shift))
(install "arithmetic-right-shift" (binary bit//arithmetic-right-shift))
)))
(def: int-procs
Bundle
(<| (prefix "int")
(|> (dict.new text.Hash<Text>)
(install "+" (binary int//add))
(install "-" (binary int//sub))
(install "*" (binary int//mul))
(install "/" (binary int//div))
(install "%" (binary int//rem))
(install "=" (binary int//=))
(install "<" (binary int//<))
(install "min" (nullary int//min))
(install "max" (nullary int//max))
(install "to-frac" (unary int//to-frac))
(install "char" (unary int//char)))))
(def: frac-procs
Bundle
(<| (prefix "frac")
(|> (dict.new text.Hash<Text>)
(install "+" (binary frac//add))
(install "-" (binary frac//sub))
(install "*" (binary frac//mul))
(install "/" (binary frac//div))
(install "%" (binary frac//rem))
(install "=" (binary frac//=))
(install "<" (binary frac//<))
(install "smallest" (nullary frac//smallest))
(install "min" (nullary frac//min))
(install "max" (nullary frac//max))
(install "to-int" (unary frac//to-int))
(install "encode" (unary frac//encode))
(install "decode" (unary frac//decode)))))
(def: text-procs
Bundle
(<| (prefix "text")
(|> (dict.new text.Hash<Text>)
(install "=" (binary text//=))
(install "<" (binary text//<))
(install "concat" (binary text//concat))
(install "index" (trinary text//index))
(install "size" (unary text//size))
(install "hash" (unary text//hash))
(install "char" (binary text//char))
(install "clip" (trinary text//clip))
)))
(def: array-procs
Bundle
(<| (prefix "array")
(|> (dict.new text.Hash<Text>)
(install "new" (unary array//new))
(install "get" (binary array//get))
(install "put" (trinary array//put))
(install "remove" (binary array//remove))
(install "size" (unary array//size))
)))
(def: math-procs
Bundle
(<| (prefix "math")
(|> (dict.new text.Hash<Text>)
(install "cos" (unary math//cos))
(install "sin" (unary math//sin))
(install "tan" (unary math//tan))
(install "acos" (unary math//acos))
(install "asin" (unary math//asin))
(install "atan" (unary math//atan))
(install "exp" (unary math//exp))
(install "log" (unary math//log))
(install "ceil" (unary math//ceil))
(install "floor" (unary math//floor))
(install "pow" (binary math//pow))
)))
(def: io-procs
Bundle
(<| (prefix "io")
(|> (dict.new text.Hash<Text>)
(install "log" (unary io//log))
(install "error" (unary io//error))
(install "exit" (unary io//exit))
(install "current-time" (nullary io//current-time)))))
(def: atom-procs
Bundle
(<| (prefix "atom")
(|> (dict.new text.Hash<Text>)
(install "new" (unary atom//new))
(install "read" (unary atom//read))
(install "compare-and-swap" (trinary atom//compare-and-swap)))))
(def: box-procs
Bundle
(<| (prefix "box")
(|> (dict.new text.Hash<Text>)
(install "new" (unary box//new))
(install "read" (unary box//read))
(install "write" (binary box//write)))))
(def: process-procs
Bundle
(<| (prefix "process")
(|> (dict.new text.Hash<Text>)
(install "parallelism-level" (nullary process//parallelism-level))
(install "schedule" (binary process//schedule))
)))
(def: #export procedures
Bundle
(<| (prefix "lux")
(|> lux-procs
(dict.merge bit-procs)
(dict.merge int-procs)
(dict.merge frac-procs)
(dict.merge text-procs)
(dict.merge array-procs)
(dict.merge math-procs)
(dict.merge io-procs)
(dict.merge atom-procs)
(dict.merge box-procs)
(dict.merge process-procs)
)))
|