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(.module:
[library
[lux {"-" Module Definition}
["[0]" ffi {"+" import: do_to object}]
[abstract
[monad {"+" do}]]
[control
pipe
["[0]" maybe]
["[0]" try {"+" Try}]
["[0]" exception {"+" exception:}]
["[0]" io {"+" IO io}]
[concurrency
["[0]" atom {"+" Atom atom}]]]
[data
[binary {"+" Binary}]
["[0]" product]
["[0]" text ("[1]@[0]" hash)
["%" format {"+" format}]]
[collection
["[0]" array]
["[0]" dictionary {"+" Dictionary}]]]
[target
[jvm
["[0]" loader {"+" Library}]
["[0]" type
["[0]" descriptor]]]]
[tool
[compiler
[language
[lux
["[0]" version]
["[0]" generation]]]
[meta
[io {"+" lux_context}]
[archive
[descriptor {"+" Module}]
["[0]" artifact]]]]]]]
[///
[host
["[0]" jvm {"+" Inst Definition Host State}
["[0]" def]
["[0]" inst]]]]
)
(import: java/lang/reflect/Field
["[1]::[0]"
(get ["?" java/lang/Object] "try" "?" java/lang/Object)])
(import: (java/lang/Class a)
["[1]::[0]"
(getField [java/lang/String] "try" java/lang/reflect/Field)])
(import: java/lang/Object
["[1]::[0]"
(getClass [] (java/lang/Class java/lang/Object))])
(import: java/lang/ClassLoader)
(type: .public ByteCode Binary)
(def: .public value_field Text "_value")
(def: .public $Value (type.class "java.lang.Object" (list)))
(exception: .public (cannot_load [class Text
error Text])
(exception.report
["Class" class]
["Error" error]))
(exception: .public (invalid_field [class Text
field Text
error Text])
(exception.report
["Class" class]
["Field" field]
["Error" error]))
(exception: .public (invalid_value [class Text])
(exception.report
["Class" class]))
(def: (class_value class_name class)
(-> Text (java/lang/Class java/lang/Object) (Try Any))
(case (java/lang/Class::getField ..value_field class)
{try.#Success field}
(case (java/lang/reflect/Field::get {.#None} field)
{try.#Success ?value}
(case ?value
{.#Some value}
{try.#Success value}
{.#None}
(exception.except ..invalid_value class_name))
{try.#Failure error}
(exception.except ..cannot_load [class_name error]))
{try.#Failure error}
(exception.except ..invalid_field [class_name ..value_field error])))
(def: class_path_separator ".")
(def: .public bytecode_name
(-> Text Text)
(text.replaced ..class_path_separator .module_separator))
(def: .public (class_name [module_id artifact_id])
(-> generation.Context Text)
(format lux_context
..class_path_separator (%.nat version.version)
..class_path_separator (%.nat module_id)
..class_path_separator (%.nat artifact_id)))
(def: (evaluate! library loader context valueI)
(-> Library java/lang/ClassLoader generation.Context Inst (Try [Any Definition]))
(let [eval_class (..class_name context)
bytecode_name (..bytecode_name eval_class)
bytecode (def.class {jvm.#V1_6}
{jvm.#Public} jvm.noneC
bytecode_name
(list) $Value
(list)
(|>> (def.field {jvm.#Public} ($_ jvm.++F jvm.finalF jvm.staticF)
..value_field ..$Value)
(def.method {jvm.#Public} ($_ jvm.++M jvm.staticM jvm.strictM)
"<clinit>"
(type.method [(list) (list) type.void (list)])
(|>> valueI
(inst.PUTSTATIC (type.class bytecode_name (list)) ..value_field ..$Value)
inst.RETURN))))]
(io.run! (do (try.with io.monad)
[_ (loader.store eval_class bytecode library)
class (loader.load eval_class loader)
value (# io.monad in (..class_value eval_class class))]
(in [value
[eval_class bytecode]])))))
(def: (execute! library loader [class_name class_bytecode])
(-> Library java/lang/ClassLoader Definition (Try Any))
(io.run! (do (try.with io.monad)
[existing_class? (|> (atom.read! library)
(# io.monad each (function (_ library)
(dictionary.key? library class_name)))
(try.lifted io.monad)
(: (IO (Try Bit))))
_ (if existing_class?
(in [])
(loader.store class_name class_bytecode library))]
(loader.load class_name loader))))
(def: (define! library loader context custom valueI)
(-> Library java/lang/ClassLoader generation.Context (Maybe Text) Inst (Try [Text Any Definition]))
(do try.monad
[[value definition] (evaluate! library loader context valueI)]
(in [(maybe.else (..class_name context)
custom)
value definition])))
(def: .public host
(IO [java/lang/ClassLoader Host])
(io (let [library (loader.new_library [])
loader (loader.memory library)]
[loader
(: Host
(implementation
(def: (evaluate! context valueI)
(# try.monad each product.left
(..evaluate! library loader context valueI)))
(def: execute!
(..execute! library loader))
(def: define!
(..define! library loader))
(def: (ingest context bytecode)
[(..class_name context) bytecode])
(def: (re_learn context custom [_ bytecode])
(io.run!
(loader.store (maybe.else (..class_name context) custom) bytecode library)))
(def: (re_load context custom [directive_name bytecode])
(io.run!
(do (try.with io.monad)
[.let [class_name (maybe.else (..class_name context)
custom)]
_ (loader.store class_name bytecode library)
class (loader.load class_name loader)]
(# io.monad in (..class_value class_name class)))))))])))
(def: .public $Variant
(type.array ..$Value))
(def: .public $Tuple
(type.array ..$Value))
(def: .public $Runtime
(type.class (..class_name [0 0]) (list)))
(def: .public $Function
(type.class (..class_name [0 1]) (list)))
|
