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(;module:
lux
(lux (control monad)
(concurrency ["A" atom]
["P" promise])
(data ["R" result]
[text "T/" Hash<Text>]
text/format
(coll ["D" dict]
[array #+ Array]))
[macro #+ Monad<Lux>]
host
[io])
(luxc ["&" base]
["&;" io]
["&;" module]
["&;" parser]
(compiler ["&&;" runtime]
["&&;" statement]
["&&;" common])
))
(def: (compile ast)
(-> Code (Lux Unit))
(case ast
(^ [_ (#;Form (list [_ (#;Symbol ["" "_lux_def"])]
[_ (#;Symbol ["" def-name])]
def-value
def-meta))])
(&&statement;compile-def def-name def-value def-meta)
(^ [_ (#;Form (list [_ (#;Symbol ["" "_lux_program"])]
[_ (#;Symbol ["" prog-args])]
prog-body))])
(&&statement;compile-program prog-args prog-body)
_
(&;fail (format "Unrecognized statement: " (%code ast)))))
(def: (exhaust action)
(All [a] (-> (Lux a) (Lux Unit)))
(do Monad<Lux>
[result action]
(exhaust action)))
(def: (ensure-new-module! file-hash module-name)
(-> Nat Text (Lux Unit))
(do Monad<Lux>
[module-exists? (macro;module-exists? module-name)
_ (: (Lux Unit)
(if module-exists?
(&;fail (format "Cannot re-define a module: " module-name))
(wrap [])))
_ (&module;create file-hash module-name)]
(wrap [])))
(def: prelude Text "lux")
(def: (with-active-compilation [module-name file-name source-code] action)
(All [a] (-> [Text Text Text] (Lux a) (Lux a)))
(do Monad<Lux>
[_ (ensure-new-module! (T/hash source-code) module-name)
#let [init-cursor [file-name +0 +0]]
output (&;with-source-code [init-cursor source-code]
action)
_ (&module;flag-compiled! module-name)]
(wrap output)))
(def: parse
(Lux Code)
(function [compiler]
(case (&parser;parse (get@ #;source compiler))
(#R;Error error)
(#R;Error error)
(#R;Success [source' output])
(#R;Success [(set@ #;source source' compiler)
output]))))
(def: (compile-module source-dirs module-name compiler)
(-> (List &;Path) Text Compiler (P;Promise (R;Result Compiler)))
(do P;Monad<Promise>
[?input (&io;read-module source-dirs module-name)]
(case ?input
(#R;Success [file-name file-content])
(let [compilation (do Monad<Lux>
[_ (with-active-compilation [module-name
file-name
file-content]
(exhaust
(do @
[ast parse]
(compile ast))))]
(wrap [])
## (&module;generate-descriptor module-name)
)]
(case (macro;run' compiler compilation)
(#R;Success [compiler module-descriptor])
(do @
[## _ (&io;write-module module-name module-descriptor)
]
(wrap (#R;Success compiler)))
(#R;Error error)
(wrap (#R;Error error))))
(#R;Error error)
(wrap (#R;Error error)))))
(jvm-import org.objectweb.asm.MethodVisitor)
(jvm-import java.lang.reflect.AccessibleObject
(setAccessible [boolean] void))
(jvm-import java.lang.reflect.Method
(invoke [Object (Array Object)] #try Object))
(jvm-import (java.lang.Class a)
(getDeclaredMethod [String (Array (Class Object))] #try Method))
(jvm-import java.lang.Object
(getClass [] (Class Object)))
(jvm-import java.lang.Integer
(#static TYPE (Class Integer)))
(jvm-import java.lang.ClassLoader)
(def: ClassLoader::defineClass
Method
(case (Class.getDeclaredMethod ["defineClass"
(|> (array (Class Object) +4)
(array-store +0 (:! (Class Object) (class-for String)))
(array-store +1 (Object.getClass [] (array byte +0)))
(array-store +2 (:! (Class Object) Integer.TYPE))
(array-store +3 (:! (Class Object) Integer.TYPE)))]
(class-for java.lang.ClassLoader))
(#R;Success method)
(do-to method
(AccessibleObject.setAccessible [true]))
(#R;Error error)
(error! error)))
(def: (memory-class-loader store)
(-> &&common;Class-Store ClassLoader)
(object ClassLoader []
[]
(ClassLoader (findClass [class-name String]) void
(case (|> store A;get io;run (D;get class-name))
(#;Some bytecode)
(case (Method.invoke [(:! Object _jvm_this)
(array;from-list (list (:! Object class-name)
(:! Object bytecode)
(:! Object (l2i 0))
(:! Object (l2i (nat-to-int (array-length bytecode))))))]
ClassLoader::defineClass)
(#R;Success output)
[]
(#R;Error error)
(error! error))
_
(error! (format "Unknown class: " class-name))))))
(def: (init-host _)
(-> Top &&common;Host)
(let [store (: &&common;Class-Store
(A;atom (D;new text;Hash<Text>)))]
{#&&common;visitor #;None
#&&common;loader (memory-class-loader store)
#&&common;store store}))
(def: init-cursor Cursor ["" +0 +0])
(def: init-type-context
Type-Context
{#;ex-counter +0
#;var-counter +0
#;var-bindings (list)})
(def: compiler-version Text "0.6.0")
(def: init-compiler-info
Compiler-Info
{#;compiler-version compiler-version
#;compiler-mode #;Build})
(def: (init-compiler host)
(-> &&common;Host Compiler)
{#;info init-compiler-info
#;source [init-cursor ""]
#;cursor init-cursor
#;modules (list)
#;scopes (list)
#;type-context init-type-context
#;expected #;None
#;seed +0
#;scope-type-vars (list)
#;host (:! Void host)})
(def: (or-crash! action)
(All [a] (-> (P;Promise (R;Result a)) (P;Promise a)))
(do P;Monad<Promise>
[?output action]
(case ?output
(#R;Error error)
(error! error)
(#R;Success output)
(wrap output))))
(def: #export (compile-program program target sources)
(-> &;Path &;Path (List &;Path) (P;Promise Unit))
(do P;Monad<Promise>
[#let [compiler (init-compiler (init-host []))]
compiler (or-crash! (&&runtime;compile-runtime compiler))
compiler (or-crash! (compile-module sources prelude compiler))
compiler (or-crash! (compile-module sources program compiler))
#let [_ (log! "Compilation complete!")]]
(wrap [])))
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