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... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
(.require
[library
[lux (.except Definition)
["[0]" ffi (.only import object)]
[abstract
[monad (.only do)]]
[control
["[0]" maybe]
["[0]" try (.only Try)]
["[0]" exception (.only Exception)]
["[0]" io (.only IO io)]
[concurrency
["[0]" atom (.only Atom atom)]]]
[data
["[0]" product]
[binary (.only Binary)
["[0]" \\format]]
["[0]" text (.use "[1]#[0]" hash)
["%" \\format]]
[collection
["[0]" array]
["[0]" dictionary (.only Dictionary)]
["[0]" sequence]]]
[meta
[compiler
[target
[jvm
["_" bytecode (.only Bytecode)]
["[0]" loader (.only Library)]
["[0]" modifier (.only Modifier) (.use "[1]#[0]" monoid)]
["[0]" field (.only Field)]
["[0]" method (.only Method)]
["[0]" version]
["[0]" class (.only Class)]
["[0]" encoding
["[1]/[0]" name]]
["[0]" type (.only)
["[0]" descriptor]]]]]
[compiler
[meta
[archive
["[0]" unit]]]]]]]
["[0]" //
["[1][0]" runtime (.only Definition)]
["[1][0]" type]
["[1][0]" value]])
(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
"[1]::[0]")
(def value::modifier
(all modifier#composite
field.public
field.final
field.static
))
(def init::type
(type.method [(list) (list) type.void (list)]))
(def init::modifier
(all modifier#composite
method.public
method.static
method.strict
))
(exception.def .public (cannot_load [class error])
(Exception [Text Text])
(exception.report
(list ["Class" class]
["Error" error])))
(exception.def .public (invalid_field [class field error])
(Exception [Text Text Text])
(exception.report
(list ["Class" class]
["Field" field]
["Error" error])))
(exception.def .public (invalid_value class)
(Exception Text)
(exception.report
(list ["Class" class])))
(def (class_value class_name class)
(-> Text (java/lang/Class java/lang/Object)
(Try Any))
(when (java/lang/Class::getField (ffi.as_string //value.field) class)
{try.#Success field}
(when (java/lang/reflect/Field::get {.#None} field)
{try.#Success ?value}
(when ?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 (evaluate! library loader eval_class [@it valueG])
(-> Library java/lang/ClassLoader Text [(Maybe unit.ID) (Bytecode Any)]
(Try [Any Definition]))
(let [bytecode_name (text.replaced class_path_separator .module_separator eval_class)
:value: (when @it
{.#Some @it}
(type.class (//runtime.class_name @it) (list))
{.#None}
//type.value)
bytecode (class.class version.v6_0
class.public
(encoding/name.internal bytecode_name)
{.#None}
(encoding/name.internal "java.lang.Object") (list)
(list (field.field ..value::modifier //value.field false :value: (sequence.sequence)))
(list (method.method ..init::modifier "<clinit>"
false ..init::type
(list)
{.#Some
(all _.composite
valueG
(_.putstatic (type.class bytecode_name (list)) //value.field :value:)
_.return)}))
(list))]
(io.run! (do [! (try.with io.monad)]
[bytecode (of ! each (\\format.result class.format)
(io.io bytecode))
_ (loader.store eval_class bytecode library)
class (loader.load eval_class loader)
value (of 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)
(of io.monad each (function (_ library)
(dictionary.key? library class_name)))
(try.lifted io.monad)
(is (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 @it,valueG)
(-> Library java/lang/ClassLoader unit.ID (Maybe Text) [(Maybe unit.ID) (Bytecode Any)]
(Try [Text Any Definition]))
(let [class_name (maybe.else (//runtime.class_name context)
custom)]
(do try.monad
[[value definition] (evaluate! library loader class_name @it,valueG)]
(in [class_name value definition]))))
(def .public host
(IO [java/lang/ClassLoader //runtime.Host])
(io (let [library (loader.new_library [])
loader (loader.memory library)
id (atom.atom 0)]
[loader
(is //runtime.Host
(implementation
(def (evaluate @it,valueG)
(let [[id _] (io.run! (atom.update! ++ id))]
(of try.monad each product.left
(..evaluate! library loader (%.format "E" (%.nat id)) @it,valueG))))
(def execute
(..execute! library loader))
(def define
(..define! library loader))
(def (ingest context bytecode)
[(//runtime.class_name context) bytecode])
(def (re_learn context custom [_ bytecode])
(io.run! (loader.store (maybe.else (//runtime.class_name context) custom) bytecode library)))
(def (re_load context custom [declaration_name bytecode])
(io.run!
(do (try.with io.monad)
[.let [class_name (maybe.else (//runtime.class_name context)
custom)]
_ (loader.store class_name bytecode library)
class (loader.load class_name loader)]
(of io.monad in (..class_value class_name class)))))
))])))
|
