1 files changed, 37 insertions, 1 deletions
diff --git a/new-luxc/source/luxc/lang/translation/procedure/common.jvm.lux b/new-luxc/source/luxc/lang/translation/procedure/common.jvm.lux
index 336293dc4..84c42244e 100644
--- a/new-luxc/source/luxc/lang/translation/procedure/common.jvm.lux
+++ b/new-luxc/source/luxc/lang/translation/procedure/common.jvm.lux
@@ -141,6 +141,8 @@
            ($i.label @end)
            )))
 
+(def: unitI $.Inst ($i.string hostL.unit))
+
 ## [Procedures]
 ## [[Lux]]
 (def: (lux//is [leftI rightI])
@@ -513,7 +515,7 @@
        messageI
        ($i.CHECKCAST "java.lang.String")
        ($i.INVOKEVIRTUAL "java.io.PrintStream" "println" string-method false)
-       ($i.string hostL.unit)))
+       unitI))
 
 (def: (io//error messageI)
   Unary
@@ -559,6 +561,31 @@
        ($i.INVOKEVIRTUAL atom-class "compareAndSet" ($t.method (list $Object $Object) (#.Some $t.boolean) (list)) false)
        ($i.wrap #$.Boolean)))
 
+## [[Box]]
+(def: empty-boxI
+  $.Inst
+  (|>> ($i.int 1) ($i.ANEWARRAY ($t.binary-name "java.lang.Object"))))
+
+(def: check-boxI
+  $.Inst
+  ($i.CHECKCAST ($t.descriptor $Object-Array)))
+
+(def: (box//new initI)
+  Unary
+  (|>> empty-boxI
+       $i.DUP ($i.int 0) initI $i.AASTORE))
+
+(def: (box//read boxI)
+  Unary
+  (|>> boxI check-boxI
+       ($i.int 0) $i.AALOAD))
+
+(def: (box//write [valueI boxI])
+  Binary
+  (|>> boxI check-boxI
+       ($i.int 0) valueI $i.AASTORE
+       unitI))
+
 ## [[Processes]]
 (def: (process//concurrency-level [])
   Nullary
@@ -745,6 +772,14 @@
           (install "read" (unary atom//read))
           (install "compare-and-swap" (trinary atom//compare-and-swap)))))
 
+(def: box-procs
+  Bundle
+  (<| (prefix "box")
+      (|> (dict.new text.Hash<Text>)
+          (install "new" (unary box//new))
+          (install "read" (unary box//read))
+          (install "write" (binary box//write)))))
+
 (def: process-procs
   Bundle
   (<| (prefix "process")
@@ -769,5 +804,6 @@
           (dict.merge math-procs)
           (dict.merge io-procs)
           (dict.merge atom-procs)
+          (dict.merge box-procs)
           (dict.merge process-procs)
           )))