From 5fb0985b7a33ccfc6c53d65ce00a643f9d8d20ee Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Thu, 23 Feb 2017 18:12:42 -0400
Subject: - Re-designed atomic operations as common procedures. - Implemented
 atomic operations for the JVM. - Basic Lux types no longer rely on JVM
 classes.

---
 stdlib/source/lux.lux                  | 10 +++++-----
 stdlib/source/lux/concurrency/atom.lux | 20 +++++++-------------
 stdlib/source/lux/concurrency/stm.lux  |  1 -
 3 files changed, 12 insertions(+), 19 deletions(-)

(limited to 'stdlib/source')

diff --git a/stdlib/source/lux.lux b/stdlib/source/lux.lux
index 01064b829..7ae8c2847 100644
--- a/stdlib/source/lux.lux
+++ b/stdlib/source/lux.lux
@@ -1,7 +1,7 @@
 ## Basic types
 (_lux_def Bool
   (+12 ["lux" "Bool"]
-       (+0 "java.lang.Boolean" (+0)))
+       (+0 "#Bool" (+0)))
   (+1 [["lux" "type?"] (+0 true)]
       (+1 [["lux" "export?"] (+0 true)]
           (+1 [["lux" "doc"] (+6 "Your standard, run-of-the-mill boolean values.")]
@@ -19,7 +19,7 @@
 
 (_lux_def Int
   (+12 ["lux" "Int"]
-       (+0 "java.lang.Long" (+0)))
+       (+0 "#Int" (+0)))
   (+1 [["lux" "type?"] (+0 true)]
       (+1 [["lux" "export?"] (+0 true)]
           (+1 [["lux" "doc"] (+6 "Your standard, run-of-the-mill integer numbers.")]
@@ -27,7 +27,7 @@
 
 (_lux_def Real
   (+12 ["lux" "Real"]
-       (+0 "java.lang.Double" (+0)))
+       (+0 "#Real" (+0)))
   (+1 [["lux" "type?"] (+0 true)]
       (+1 [["lux" "export?"] (+0 true)]
           (+1 [["lux" "doc"] (+6 "Your standard, run-of-the-mill floating-point numbers.")]
@@ -45,7 +45,7 @@
 
 (_lux_def Char
   (+12 ["lux" "Char"]
-       (+0 "java.lang.Character" (+0)))
+       (+0 "#Char" (+0)))
   (+1 [["lux" "type?"] (+0 true)]
       (+1 [["lux" "export?"] (+0 true)]
           (+1 [["lux" "doc"] (+6 "Your standard, run-of-the-mill character values.")]
@@ -53,7 +53,7 @@
 
 (_lux_def Text
   (+12 ["lux" "Text"]
-       (+0 "java.lang.String" (+0)))
+       (+0 "#Text" (+0)))
   (+1 [["lux" "type?"] (+0 true)]
       (+1 [["lux" "export?"] (+0 true)]
           (+1 [["lux" "doc"] (+6 "Your standard, run-of-the-mill string values.")]
diff --git a/stdlib/source/lux/concurrency/atom.lux b/stdlib/source/lux/concurrency/atom.lux
index 09dd642ed..f2ec8b46c 100644
--- a/stdlib/source/lux/concurrency/atom.lux
+++ b/stdlib/source/lux/concurrency/atom.lux
@@ -1,31 +1,25 @@
 (;module:
   lux
-  (lux [io #- run]
-       host))
-
-(jvm-import (java.util.concurrent.atomic.AtomicReference V)
-  (new [V])
-  (compareAndSet [V V] boolean)
-  (get [] V))
+  (lux [io #- run]))
 
 (type: #export (Atom a)
   {#;doc "Atomic references that are safe to mutate concurrently."}
-  (AtomicReference a))
+  (#;HostT "#Atom" (#;Cons a #;Nil)))
 
 (def: #export (atom value)
   (All [a] (-> a (Atom a)))
-  (AtomicReference.new [value]))
+  (_lux_proc ["atom" "new"] [value]))
 
 (def: #export (get atom)
   (All [a] (-> (Atom a) (IO a)))
-  (io (AtomicReference.get [] atom)))
+  (io (_lux_proc ["atom" "get"] [atom])))
 
 (def: #export (compare-and-swap current new atom)
   {#;doc "Only mutates an atom if you can present it's current value.
 
           That guarantees that atom wasn't updated since you last read from it."}
   (All [a] (-> a a (Atom a) (IO Bool)))
-  (io (AtomicReference.compareAndSet [current new] atom)))
+  (io (_lux_proc ["atom" "compare-and-swap"] [atom current new])))
 
 (def: #export (update f atom)
   {#;doc "Updates an atom by applying a function to its current value.
@@ -34,8 +28,8 @@
 
           The retries will be done with the new values of the atom, as they show up."}
   (All [a] (-> (-> a a) (Atom a) (IO Unit)))
-  (io (let [old (AtomicReference.get [] atom)]
-        (if (AtomicReference.compareAndSet [old (f old)] atom)
+  (io (let [old (_lux_proc ["atom" "get"] [atom])]
+        (if (_lux_proc ["atom" "compare-and-swap"] [atom old (f old)])
           []
           (io;run (update f atom))))))
 
diff --git a/stdlib/source/lux/concurrency/stm.lux b/stdlib/source/lux/concurrency/stm.lux
index 36eb6854e..c1c3153dd 100644
--- a/stdlib/source/lux/concurrency/stm.lux
+++ b/stdlib/source/lux/concurrency/stm.lux
@@ -12,7 +12,6 @@
              maybe
              [number "Nat/" Codec<Text,Nat>]
              text/format)
-       host
        [compiler]
        (macro [ast]
               ["s" syntax #+ syntax: Syntax])
-- 
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