From 296d087530cb142efec1dea159770346bb43c3c0 Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Wed, 15 Nov 2017 19:51:33 -0400
Subject: - Heavy refactoring.
---
new-luxc/source/luxc/lang/host.jvm.lux | 185 +++++++++++++++++++++++++++++++++
1 file changed, 185 insertions(+)
create mode 100644 new-luxc/source/luxc/lang/host.jvm.lux
(limited to 'new-luxc/source/luxc/lang/host.jvm.lux')
diff --git a/new-luxc/source/luxc/lang/host.jvm.lux b/new-luxc/source/luxc/lang/host.jvm.lux
new file mode 100644
index 000000000..ae1d29387
--- /dev/null
+++ b/new-luxc/source/luxc/lang/host.jvm.lux
@@ -0,0 +1,185 @@
+(;module:
+ lux
+ (lux (control [monad #+ do]
+ ["ex" exception #+ exception:]
+ pipe)
+ (concurrency ["A" atom])
+ (data ["e" error]
+ [text]
+ text/format
+ (coll [dict]
+ [array]))
+ [meta #+ Monad]
+ [host #+ do-to object]
+ [io])
+ (luxc ["&" lang]
+ (lang [";L" variable #+ Register]
+ (translation [";T" common]))))
+
+(host;import org.objectweb.asm.Label)
+
+(host;import java.lang.reflect.AccessibleObject
+ (setAccessible [boolean] void))
+
+(host;import java.lang.reflect.Method
+ (invoke [Object (Array Object)] #try Object))
+
+(host;import (java.lang.Class a)
+ (getDeclaredMethod [String (Array (Class Object))] #try Method))
+
+(host;import java.lang.Object
+ (getClass [] (Class Object)))
+
+(host;import java.lang.Integer
+ (#static TYPE (Class Integer)))
+
+(host;import java.lang.ClassLoader)
+
+(def: ClassLoader::defineClass
+ Method
+ (case (Class.getDeclaredMethod ["defineClass"
+ (|> (host;array (Class Object) +4)
+ (host;array-write +0 (:! (Class Object) (host;class-for String)))
+ (host;array-write +1 (Object.getClass [] (host;array byte +0)))
+ (host;array-write +2 (:! (Class Object) Integer.TYPE))
+ (host;array-write +3 (:! (Class Object) Integer.TYPE)))]
+ (host;class-for java.lang.ClassLoader))
+ (#e;Success method)
+ (do-to method
+ (AccessibleObject.setAccessible [true]))
+
+ (#e;Error error)
+ (error! error)))
+
+(def: (define-class class-name byte-code loader)
+ (-> Text commonT;Bytecode ClassLoader (e;Error Object))
+ (Method.invoke [loader
+ (array;from-list (list (:! Object class-name)
+ (:! Object byte-code)
+ (:! Object (host;l2i 0))
+ (:! Object (host;l2i (nat-to-int (host;array-length byte-code))))))]
+ ClassLoader::defineClass))
+
+(def: (fetch-byte-code class-name store)
+ (-> Text commonT;Class-Store (Maybe commonT;Bytecode))
+ (|> store A;get io;run (dict;get class-name)))
+
+(def: (memory-class-loader store)
+ (-> commonT;Class-Store ClassLoader)
+ (object ClassLoader []
+ []
+ (ClassLoader (findClass [class-name String]) Class
+ (case (fetch-byte-code class-name store)
+ (#;Some bytecode)
+ (case (define-class class-name bytecode (:! ClassLoader _jvm_this))
+ (#e;Success class)
+ (:!! class)
+
+ (#e;Error error)
+ (error! (format "Class definition error: " class-name "\n"
+ error)))
+
+ #;None
+ (error! (format "Class not found: " class-name))))))
+
+(def: #export init-host
+ (io;IO commonT;Host)
+ (io;io (let [store (: commonT;Class-Store
+ (A;atom (dict;new text;Hash)))]
+ {#commonT;loader (memory-class-loader store)
+ #commonT;store store
+ #commonT;artifacts (dict;new text;Hash)
+ #commonT;context ["" +0]
+ #commonT;anchor #;None})))
+
+(def: #export (with-anchor anchor expr)
+ (All [a] (-> [Label Register] (Meta a) (Meta a)))
+ (;function [compiler]
+ (let [old (:! commonT;Host (get@ #;host compiler))]
+ (case (expr (set@ #;host
+ (:! Void (set@ #commonT;anchor (#;Some anchor) old))
+ compiler))
+ (#e;Success [compiler' output])
+ (#e;Success [(update@ #;host
+ (|>. (:! commonT;Host)
+ (set@ #commonT;anchor (get@ #commonT;anchor old))
+ (:! Void))
+ compiler')
+ output])
+
+ (#e;Error error)
+ (#e;Error error)))))
+
+(exception: #export No-Anchor)
+
+(def: #export anchor
+ (Meta [Label Register])
+ (;function [compiler]
+ (case (|> compiler (get@ #;host) (:! commonT;Host) (get@ #commonT;anchor))
+ (#;Some anchor)
+ (#e;Success [compiler
+ anchor])
+
+ #;None
+ ((&;throw No-Anchor "") compiler))))
+
+(def: #export (with-context name expr)
+ (All [a] (-> Text (Meta a) (Meta a)))
+ (;function [compiler]
+ (let [old (:! commonT;Host (get@ #;host compiler))]
+ (case (expr (set@ #;host
+ (:! Void (set@ #commonT;context [(&;normalize-name name) +0] old))
+ compiler))
+ (#e;Success [compiler' output])
+ (#e;Success [(update@ #;host
+ (|>. (:! commonT;Host)
+ (set@ #commonT;context (get@ #commonT;context old))
+ (:! Void))
+ compiler')
+ output])
+
+ (#e;Error error)
+ (#e;Error error)))))
+
+(def: #export (with-sub-context expr)
+ (All [a] (-> (Meta a) (Meta [Text a])))
+ (;function [compiler]
+ (let [old (:! commonT;Host (get@ #;host compiler))
+ [old-name old-sub] (get@ #commonT;context old)
+ new-name (format old-name "$" (%i (nat-to-int old-sub)))]
+ (case (expr (set@ #;host
+ (:! Void (set@ #commonT;context [new-name +0] old))
+ compiler))
+ (#e;Success [compiler' output])
+ (#e;Success [(update@ #;host
+ (|>. (:! commonT;Host)
+ (set@ #commonT;context [old-name (n.inc old-sub)])
+ (:! Void))
+ compiler')
+ [new-name output]])
+
+ (#e;Error error)
+ (#e;Error error)))))
+
+(def: #export context
+ (Meta Text)
+ (;function [compiler]
+ (#e;Success [compiler
+ (|> (get@ #;host compiler)
+ (:! commonT;Host)
+ (get@ #commonT;context)
+ (let> [name sub]
+ name))])))
+
+(def: #export class-loader
+ (Meta ClassLoader)
+ (function [compiler]
+ (#e;Success [compiler
+ (|> compiler
+ (get@ #;host)
+ (:! commonT;Host)
+ (get@ #commonT;loader))])))
+
+(def: #export runtime-class Text "LuxRuntime")
+(def: #export function-class Text "LuxFunction")
+(def: #export unit Text "\u0000")
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