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|
(.module:
[lux (#- Type int char)
[data
["." maybe ("#@." functor)]
["." text
format]
[collection
["." list ("#@." functor)]]]])
(def: array-prefix "[")
(def: binary-void-name "V")
(def: binary-boolean-name "Z")
(def: binary-byte-name "B")
(def: binary-short-name "S")
(def: binary-int-name "I")
(def: binary-long-name "J")
(def: binary-float-name "F")
(def: binary-double-name "D")
(def: binary-char-name "C")
(def: binary-object-prefix "L")
(def: binary-object-suffix ";")
(def: object-class "java.lang.Object")
(type: #export Bound
#Upper
#Lower)
(type: #export Primitive
#Boolean
#Byte
#Short
#Int
#Long
#Float
#Double
#Char)
(type: #export #rec Generic
(#Var Text)
(#Wildcard (Maybe [Bound Generic]))
(#Class Text (List Generic)))
(type: #export Class
[Text (List Generic)])
(type: #export Parameter
[Text Class (List Class)])
(type: #export #rec Type
(#Primitive Primitive)
(#Generic Generic)
(#Array Type))
(type: #export Method
{#args (List Type)
#return (Maybe Type)
#exceptions (List Generic)})
(template [<name> <primitive>]
[(def: #export <name> Type (#Primitive <primitive>))]
[boolean #Boolean]
[byte #Byte]
[short #Short]
[int #Int]
[long #Long]
[float #Float]
[double #Double]
[char #Char]
)
(template: #export (class name params)
(#..Generic (#..Class name params)))
(template: #export (var name)
(#..Generic (#..Var name)))
(template: #export (wildcard bound)
(#..Generic (#..Wildcard bound)))
(def: #export (array depth elemT)
(-> Nat Type Type)
(case depth
0 elemT
_ (#Array (array (dec depth) elemT))))
(def: #export binary-name
(-> Text Text)
(text.replace-all "." "/"))
(def: #export (descriptor type)
(-> Type Text)
(case type
(#Primitive prim)
(case prim
#Boolean ..binary-boolean-name
#Byte ..binary-byte-name
#Short ..binary-short-name
#Int ..binary-int-name
#Long ..binary-long-name
#Float ..binary-float-name
#Double ..binary-double-name
#Char ..binary-char-name)
(#Array sub)
(format ..array-prefix (descriptor sub))
(#Generic generic)
(case generic
(#Class class params)
(format ..binary-object-prefix (binary-name class) ..binary-object-suffix)
(^or (#Var name) (#Wildcard ?bound))
(descriptor (#Generic (#Class ..object-class (list)))))
))
(def: #export (class-name type)
(-> Type (Maybe Text))
(case type
(#Primitive prim)
#.None
(#Array sub)
(#.Some (descriptor type))
(#Generic generic)
(case generic
(#Class class params)
(#.Some class)
(^or (#Var name) (#Wildcard ?bound))
(#.Some ..object-class))
))
(def: #export (signature type)
(-> Type Text)
(case type
(#Primitive prim)
(case prim
#Boolean ..binary-boolean-name
#Byte ..binary-byte-name
#Short ..binary-short-name
#Int ..binary-int-name
#Long ..binary-long-name
#Float ..binary-float-name
#Double ..binary-double-name
#Char ..binary-char-name)
(#Array sub)
(format ..array-prefix (signature sub))
(#Generic generic)
(case generic
(#Class class params)
(let [=params (if (list.empty? params)
""
(format "<"
(|> params
(list@map (|>> #Generic signature))
(text.join-with ""))
">"))]
(format ..binary-object-prefix (binary-name class) =params ..binary-object-suffix))
(#Var name)
(format "T" name ..binary-object-suffix)
(#Wildcard #.None)
"*"
(^template [<tag> <prefix>]
(#Wildcard (#.Some [<tag> bound]))
(format <prefix> (signature (#Generic bound))))
([#Upper "+"]
[#Lower "-"]))
))
(def: #export (method args return exceptions)
(-> (List Type) (Maybe Type) (List Generic) Method)
{#args args #return return #exceptions exceptions})
(def: method-args
(text.enclose ["(" ")"]))
(def: #export (method-descriptor method)
(-> Method Text)
(format (|> (get@ #args method) (list@map descriptor) (text.join-with "") ..method-args)
(case (get@ #return method)
#.None
..binary-void-name
(#.Some return)
(descriptor return))))
(def: #export (method-signature method)
(-> Method Text)
(format (|> (get@ #args method) (list@map signature) (text.join-with "") ..method-args)
(case (get@ #return method)
#.None
..binary-void-name
(#.Some return)
(signature return))
(|> (get@ #exceptions method)
(list@map (|>> #Generic signature (format "^")))
(text.join-with ""))))
|
