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|
(.module:
[lux (#- Type int char)
[abstract
[equivalence (#+ Equivalence)]]
[data
["." maybe]
["." text]
[number
["n" nat]]
[collection
["." list ("#@." functor)]]]
[type
abstract]]
["." // #_
[encoding
["#." name (#+ External)]]]
["." / #_
[category (#+ Void Value Return Method Primitive Object Class Array Var Parameter)]
["#." signature (#+ Signature)]
["#." descriptor (#+ Descriptor)]
["#." reflection (#+ Reflection)]])
(abstract: #export (Type category)
{}
[(Signature category) (Descriptor category) (Reflection category)]
(type: #export Argument
[Text (Type Value)])
(type: #export (Typed a)
[(Type Value) a])
(type: #export Constraint
{#name Text
#super-class (Type Class)
#super-interfaces (List (Type Class))})
(template [<name> <style>]
[(def: #export (<name> type)
(All [category] (-> (Type category) (<style> category)))
(let [[signature descriptor reflection] (:representation type)]
<name>))]
[signature Signature]
[descriptor Descriptor]
[reflection Reflection]
)
(template [<category> <name> <signature> <descriptor> <reflection>]
[(def: #export <name>
(Type <category>)
(:abstraction [<signature> <descriptor> <reflection>]))]
[Void void /signature.void /descriptor.void /reflection.void]
[Primitive boolean /signature.boolean /descriptor.boolean /reflection.boolean]
[Primitive byte /signature.byte /descriptor.byte /reflection.byte]
[Primitive short /signature.short /descriptor.short /reflection.short]
[Primitive int /signature.int /descriptor.int /reflection.int]
[Primitive long /signature.long /descriptor.long /reflection.long]
[Primitive float /signature.float /descriptor.float /reflection.float]
[Primitive double /signature.double /descriptor.double /reflection.double]
[Primitive char /signature.char /descriptor.char /reflection.char]
)
(def: #export (array type)
(-> (Type Value) (Type Array))
(:abstraction
[(/signature.array (..signature type))
(/descriptor.array (..descriptor type))
(/reflection.array (..reflection type))]))
(def: #export (class name parameters)
(-> External (List (Type Parameter)) (Type Class))
(:abstraction
[(/signature.class name (list@map ..signature parameters))
(/descriptor.class name)
(/reflection.class name)]))
(def: #export wildcard
(Type Parameter)
(:abstraction
[/signature.wildcard
/descriptor.wildcard
/reflection.wildcard]))
(def: #export (var name)
(-> Text (Type Var))
(:abstraction
[(/signature.var name)
/descriptor.var
/reflection.var]))
(def: #export (lower bound)
(-> (Type Class) (Type Parameter))
(:abstraction
[(/signature.lower (..signature bound))
(/descriptor.lower (..descriptor bound))
(/reflection.lower (..reflection bound))]))
(def: #export (upper bound)
(-> (Type Class) (Type Parameter))
(:abstraction
[(/signature.upper (..signature bound))
(/descriptor.upper (..descriptor bound))
(/reflection.upper (..reflection bound))]))
(def: #export (method [inputs output exceptions])
(-> [(List (Type Value))
(Type Return)
(List (Type Class))]
[(Signature Method)
(Descriptor Method)])
[(/signature.method [(list@map ..signature inputs)
(..signature output)
(list@map ..signature exceptions)])
(/descriptor.method [(list@map ..descriptor inputs)
(..descriptor output)])])
(structure: #export equivalence
(All [category] (Equivalence (Type category)))
(def: (= parameter subject)
(:: /signature.equivalence =
(..signature parameter)
(..signature subject))))
(def: #export (primitive? type)
(-> (Type Value) (Either (Type Object)
(Type Primitive)))
(if (`` (or (~~ (template [<type>]
[(:: ..equivalence = (: (Type Value) <type>) type)]
[..boolean]
[..byte]
[..short]
[..int]
[..long]
[..float]
[..double]
[..char]))))
(|> type (:coerce (Type Primitive)) #.Right)
(|> type (:coerce (Type Object)) #.Left)))
(def: #export (void? type)
(-> (Type Return) (Either (Type Value)
(Type Void)))
(if (`` (or (~~ (template [<type>]
[(:: ..equivalence = (: (Type Return) <type>) type)]
[..void]))))
(|> type (:coerce (Type Void)) #.Right)
(|> type (:coerce (Type Value)) #.Left)))
)
(def: #export (class? type)
(-> (Type Value) (Maybe External))
(let [repr (|> type ..descriptor /descriptor.descriptor)]
(if (and (text.starts-with? /descriptor.class-prefix repr)
(text.ends-with? /descriptor.class-suffix repr))
(|> repr
(text.clip (text.size /descriptor.class-prefix)
(n.- (text.size /descriptor.class-suffix)
(text.size repr)))
(:: maybe.monad map (|>> //name.internal //name.external)))
#.None)))
|
