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(.module:
[lux #*
["." host (#+ import: do-to)]
[data
["." binary (#+ Binary)]
["." text]
[number
["n" nat]]
[collection
["." row]
["." list ("#@." fold)]]]
[target
[jvm
[encoding
["." name]]]]
[tool
[compiler
[phase
[generation (#+ Buffer Output)]]
[meta
[archive
[descriptor (#+ Module)]]]]]]
[//
[host
[jvm (#+ Definition)]]])
(import: #long java/lang/Object)
(import: #long java/lang/String)
(import: #long java/util/jar/Attributes
(put [java/lang/Object java/lang/Object] #? java/lang/Object))
(import: #long java/util/jar/Attributes$Name
(#static MAIN_CLASS java/util/jar/Attributes$Name)
(#static MANIFEST_VERSION java/util/jar/Attributes$Name))
(import: #long java/util/jar/Manifest
(new [])
(getMainAttributes [] java/util/jar/Attributes))
(import: #long java/io/Flushable
(flush [] void))
(import: #long java/io/Closeable
(close [] void))
(import: #long java/io/OutputStream)
(import: #long java/io/ByteArrayOutputStream
(new [int])
(toByteArray [] [byte]))
(import: #long java/util/zip/ZipEntry)
(import: #long java/util/zip/ZipOutputStream
(write [[byte] int int] void)
(closeEntry [] void))
(import: #long java/util/jar/JarEntry
(new [java/lang/String]))
(import: #long java/util/jar/JarOutputStream
(new [java/io/OutputStream java/util/jar/Manifest])
(putNextEntry [java/util/zip/ZipEntry] void))
(def: byte 1)
(def: kilo-byte (n.* 1,000 byte))
(def: mega-byte (n.* 1,000 kilo-byte))
(def: manifest-version "1.0")
(def: class-name
(-> Module Text)
(text.suffix ".class"))
(def: main "_")
(def: (manifest module)
(-> Module java/util/jar/Manifest)
(let [manifest (java/util/jar/Manifest::new)]
(exec (do-to (java/util/jar/Manifest::getMainAttributes manifest)
(java/util/jar/Attributes::put (java/util/jar/Attributes$Name::MAIN_CLASS) ..main)
(java/util/jar/Attributes::put (java/util/jar/Attributes$Name::MANIFEST_VERSION) ..manifest-version))
manifest)))
(def: (write-class [def-name [class-name bytecode]] sink)
(-> [Name Definition] java/util/jar/JarOutputStream java/util/jar/JarOutputStream)
(let [class-name (|> class-name name.internal name.read ..class-name)]
(do-to sink
(java/util/jar/JarOutputStream::putNextEntry (java/util/jar/JarEntry::new class-name))
(java/util/zip/ZipOutputStream::write bytecode +0 (.int (binary.size bytecode)))
(java/io/Flushable::flush)
(java/util/zip/ZipOutputStream::closeEntry))))
(def: (write-module [module classes] sink)
(-> [Module (Buffer Definition)] java/util/jar/JarOutputStream java/util/jar/JarOutputStream)
(|> classes
row.to-list
(list@fold ..write-class sink)))
(def: #export (package module outputs)
(-> Module (Output Definition) Binary)
(let [buffer (java/io/ByteArrayOutputStream::new (.int mega-byte))
sink (java/util/jar/JarOutputStream::new buffer (manifest module))]
(exec (|> outputs
row.to-list
(list@fold ..write-module sink))
(do-to sink
(java/io/Flushable::flush)
(java/io/Closeable::close))
(java/io/ByteArrayOutputStream::toByteArray buffer))))
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