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(ns lux.compiler.jvm
(:refer-clojure :exclude [compile])
(:require (clojure [string :as string]
[set :as set]
[template :refer [do-template]])
clojure.core.match
clojure.core.match.array
(lux [base :as & :refer [|let |do return* return |case]]
[type :as &type]
[reader :as &reader]
[lexer :as &lexer]
[parser :as &parser]
[analyser :as &analyser]
[optimizer :as &optimizer]
[host :as &host])
[lux.host.generics :as &host-generics]
[lux.optimizer :as &o]
[lux.analyser.base :as &a]
[lux.analyser.module :as &a-module]
(lux.compiler [core :as &&core]
[io :as &&io]
[parallel :as &¶llel])
(lux.compiler.jvm [base :as &&]
[cache :as &&cache]
[lux :as &&lux]
[host :as &&host]
[case :as &&case]
[lambda :as &&lambda]))
(:import (org.objectweb.asm Opcodes
Label
ClassWriter
MethodVisitor)))
;; [Resources]
(def ^:private !source->last-line (atom nil))
(defn ^:private compile-expression [$begin syntax]
(|let [[[?type [_file-name _line _]] ?form] syntax]
(|do [^MethodVisitor *writer* &/get-writer
:let [debug-label (new Label)
_ (when (not= _line (get @!source->last-line _file-name))
(doto *writer*
(.visitLabel debug-label)
(.visitLineNumber (int _line) debug-label))
(swap! !source->last-line assoc _file-name _line))]]
(|case ?form
(&o/$bool ?value)
(&&lux/compile-bool ?value)
(&o/$nat ?value)
(&&lux/compile-nat ?value)
(&o/$int ?value)
(&&lux/compile-int ?value)
(&o/$deg ?value)
(&&lux/compile-deg ?value)
(&o/$real ?value)
(&&lux/compile-real ?value)
(&o/$char ?value)
(&&lux/compile-char ?value)
(&o/$text ?value)
(&&lux/compile-text ?value)
(&o/$tuple ?elems)
(&&lux/compile-tuple (partial compile-expression $begin) ?elems)
(&o/$var (&/$Local ?idx))
(&&lux/compile-local (partial compile-expression $begin) ?idx)
(&o/$captured ?scope ?captured-id ?source)
(&&lux/compile-captured (partial compile-expression $begin) ?scope ?captured-id ?source)
(&o/$var (&/$Global ?owner-class ?name))
(&&lux/compile-global (partial compile-expression $begin) ?owner-class ?name)
(&o/$apply ?fn ?args)
(&&lux/compile-apply (partial compile-expression $begin) ?fn ?args)
(&o/$loop _register-offset _inits _body)
(&&lux/compile-loop compile-expression _register-offset _inits _body)
(&o/$iter _register-offset ?args)
(&&lux/compile-iter (partial compile-expression $begin) $begin _register-offset ?args)
(&o/$variant ?tag ?tail ?members)
(&&lux/compile-variant (partial compile-expression $begin) ?tag ?tail ?members)
(&o/$case ?value [?pm ?bodies])
(&&case/compile-case (partial compile-expression $begin) ?value ?pm ?bodies)
(&o/$let _value _register _body)
(&&lux/compile-let (partial compile-expression $begin) _value _register _body)
(&o/$record-get _value _path)
(&&lux/compile-record-get (partial compile-expression $begin) _value _path)
(&o/$if _test _then _else)
(&&lux/compile-if (partial compile-expression $begin) _test _then _else)
(&o/$function _register-offset ?arity ?scope ?env ?body)
(&&lambda/compile-function compile-expression &/$None ?arity ?scope ?env ?body)
(&o/$ann ?value-ex ?type-ex)
(compile-expression $begin ?value-ex)
(&o/$proc [?proc-category ?proc-name] ?args special-args)
(&&host/compile-host (partial compile-expression $begin) ?proc-category ?proc-name ?args special-args)
_
(assert false (prn-str 'compile-expression (&/adt->text syntax)))
))
))
(defn init!
"(-> (List Text) Null)"
[resources-dirs ^String target-dir]
(do (reset! !source->last-line {})
(let [class-loader (ClassLoader/getSystemClassLoader)
addURL (doto (.getDeclaredMethod java.net.URLClassLoader "addURL" (into-array [java.net.URL]))
(.setAccessible true))]
(doseq [^String resources-dir (&/->seq resources-dirs)]
(.invoke addURL class-loader
(to-array [(->> resources-dir (new java.io.File) .toURI .toURL)]))))))
(defn eval! [expr]
(&/with-eval
(|do [module &/get-module-name
id &/gen-id
[file-name _ _] &/cursor
:let [class-name (str (&host/->module-class module) "/" id)
=class (doto (new ClassWriter ClassWriter/COMPUTE_MAXS)
(.visit &host/bytecode-version (+ Opcodes/ACC_PUBLIC Opcodes/ACC_SUPER)
class-name nil "java/lang/Object" nil)
(-> (.visitField (+ Opcodes/ACC_PUBLIC Opcodes/ACC_FINAL Opcodes/ACC_STATIC) &/eval-field "Ljava/lang/Object;" nil nil)
(doto (.visitEnd)))
(.visitSource file-name nil))]
_ (&/with-writer (.visitMethod =class Opcodes/ACC_STATIC "<clinit>" "()V" nil nil)
(|do [^MethodVisitor *writer* &/get-writer
:let [_ (.visitCode *writer*)]
_ (compile-expression nil expr)
:let [_ (doto *writer*
(.visitFieldInsn Opcodes/PUTSTATIC class-name &/eval-field "Ljava/lang/Object;")
(.visitInsn Opcodes/RETURN)
(.visitMaxs 0 0)
(.visitEnd))]]
(return nil)))
:let [bytecode (.toByteArray (doto =class
.visitEnd))]
_ (&&/save-class! (str id) bytecode)
loader &/loader]
(-> (.loadClass ^ClassLoader loader (str (&host-generics/->class-name module) "." id))
(.getField &/eval-field)
(.get nil)
return))))
(def all-compilers
(let [compile-expression* (partial compile-expression nil)]
(&/T [(partial &&lux/compile-def compile-expression)
(partial &&lux/compile-program compile-expression*)
(fn [macro args state] (-> macro (.apply args) (.apply state)))
(partial &&host/compile-jvm-class compile-expression*)
&&host/compile-jvm-interface])))
(let [+field-flags+ (+ Opcodes/ACC_PUBLIC Opcodes/ACC_FINAL Opcodes/ACC_STATIC)
+datum-sig+ "Ljava/lang/Object;"]
(defn compile-module [source-dirs name]
(let [file-name (str name ".lux")]
(|do [file-content (&&io/read-file source-dirs file-name)
:let [file-hash (hash file-content)
compile-module!! (&¶llel/parallel-compilation (partial compile-module source-dirs))]]
(&/|eitherL (&&cache/load name)
(let [compiler-step (&analyser/analyse &optimizer/optimize eval! compile-module!! all-compilers)]
(|do [module-exists? (&a-module/exists? name)]
(if module-exists?
(&/fail-with-loc "[Compiler Error] Can't re-define a module!")
(|do [_ (&&cache/delete name)
_ (&a-module/create-module name file-hash)
_ (&a-module/flag-active-module name)
:let [module-class-name (str (&host/->module-class name) "/_")
=class (doto (new ClassWriter ClassWriter/COMPUTE_MAXS)
(.visit &host/bytecode-version (+ Opcodes/ACC_PUBLIC Opcodes/ACC_SUPER)
module-class-name nil "java/lang/Object" nil)
(-> (.visitField +field-flags+ &/hash-field "I" nil file-hash)
.visitEnd)
(-> (.visitField +field-flags+ &/compiler-field "Ljava/lang/String;" nil &/compiler-version)
.visitEnd)
(.visitSource file-name nil))]
_ (if (= "lux" name)
(|do [_ &&host/compile-Function-class
_ &&host/compile-LuxRT-class]
(return nil))
(return nil))]
(fn [state]
(|case ((&/with-writer =class
(&/exhaust% compiler-step))
(&/set$ &/$source (&reader/from name file-content) state))
(&/$Right ?state _)
(&/run-state (|do [:let [_ (.visitEnd =class)]
_ (&a-module/flag-compiled-module name)
_ (&&/save-class! &/module-class-name (.toByteArray =class))
module-descriptor &&core/generate-module-descriptor
_ (&&core/write-module-descriptor! name module-descriptor)]
(return file-hash))
?state)
(&/$Left ?message)
(&/fail* ?message))))))))
)
)))
(let [define-class (doto (.getDeclaredMethod java.lang.ClassLoader "defineClass" (into-array [String
(class (byte-array []))
Integer/TYPE
Integer/TYPE]))
(.setAccessible true))]
(defn memory-class-loader [store]
(proxy [java.lang.ClassLoader]
[]
(findClass [^String class-name]
(if-let [^bytes bytecode (get @store class-name)]
(.invoke define-class this (to-array [class-name bytecode (int 0) (int (alength bytecode))]))
(throw (IllegalStateException. (str "[Class Loader] Unknown class: " class-name))))))))
(defn jvm-host []
(let [store (atom {})]
(&/T [;; "lux;writer"
&/$None
;; "lux;loader"
(memory-class-loader store)
;; "lux;classes"
store
;; "lux;module-states"
(&/|table)
;; lux;type-env
(&/|table)
;; lux;dummy-mappings
(&/|table)
])))
(let [!err! *err*]
(defn compile-program [mode program-module resources-dir source-dirs target-dir]
(let [m-action (|do [_ (&&cache/pre-load-cache! source-dirs)
_ (compile-module source-dirs "lux")]
(compile-module source-dirs program-module))]
(|case (m-action (&/init-state mode (jvm-host)))
(&/$Right ?state _)
(do (println "Compilation complete!")
(&&cache/clean ?state))
(&/$Left ?message)
(binding [*out* !err!]
(do (println (str "Compilation failed:\n" ?message))
(flush)
(System/exit 1)))))))
|