Added an easy way to export Lux functionality to host programs (in JVM).

12 files changed, 439 insertions, 176 deletions

diff --git a/changelog.md b/changelog.md
index 688793326..ddfd14d9a 100644
--- a/changelog.md
+++ b/changelog.md
@@ -4,9 +4,11 @@
 ### Added
 * Inline functions.
 * Can pass configuration parameters from the build description to the compiler.
-* Can select code based on configuration parameters.
-* Can select code based on compiler version.
+* Code selection based on configuration parameters.
+* Code selection based on compiler version.
+* Extensible meta-compiler.
 ### Changed
+* JVM compilation no longer relies on the ASM library.
 ### Removed
 ### Fixed
 ### Deprecated
diff --git a/lux-mode/lux-mode.el b/lux-mode/lux-mode.el
index ee5050d47..016c0170c 100644
--- a/lux-mode/lux-mode.el
+++ b/lux-mode/lux-mode.el
@@ -393,7 +393,7 @@ Called by `imenu--generic-function'."
 							(code//template (altRE "template" "template:"))
 							;; Miscellaneous
 							(actor (altRE "actor:" "message:" "actor"))
-							(jvm-host (altRE "class:" "interface:" "import:" "object" "do_to" "synchronized" "class_for"))
+							(jvm-host (altRE "import:" "export:" "class:" "interface:" "object" "do_to" "synchronized" "class_for"))
 							(alternative-format (altRE "char" "bin" "oct" "hex"))
 							(documentation (altRE "comment" "documentation:"))
 							(function-application (altRE "|>" "<|" "_\\$" "\\$_"))
diff --git a/stdlib/source/library/lux/ffi.jvm.lux b/stdlib/source/library/lux/ffi.jvm.lux
index f5f804fee..a93701270 100644
--- a/stdlib/source/library/lux/ffi.jvm.lux
+++ b/stdlib/source/library/lux/ffi.jvm.lux
@@ -1,6 +1,6 @@
 (.using
  [library
-  ["[0]" lux {"-" Primitive Type type int char :as}
+  ["[0]" lux {"-" Primitive Type type int char :as function}
    ["[0]" meta]
    [abstract
     ["[0]" monad {"+" Monad do}]
@@ -230,7 +230,7 @@
 (type: FieldDecl
   (Variant
    {#ConstantField (Type Value) Code}
-   {#VariableField State (Type Value)}))
+   {#VariableField [State Bit (Type Value)]}))
 
 (type: MethodDecl
   (Record
@@ -624,7 +624,7 @@
 (def: (parameter^ type_vars)
   (-> (List (Type Var)) (Parser (Type Parameter)))
   (<>.rec
-   (function (_ _)
+   (.function (_ _)
      (let [class^ (..class^' parameter^ type_vars)]
        ($_ <>.either
            (..type_variable type_vars)
@@ -663,7 +663,7 @@
 (def: (type^ type_vars)
   (-> (List (Type Var)) (Parser (Type Value)))
   (<>.rec
-   (function (_ type^)
+   (.function (_ type^)
      ($_ <>.either
          ..primitive^
          (..parameter^ type_vars)
@@ -764,10 +764,11 @@
              (<code>.form (do <>.monad
                             [pm privacy_modifier^
                              sm state_modifier^
+                             static? (<>.parses? (<code>.this! (' "static")))
                              name <code>.local_symbol
                              anns ..annotations^
                              type (..type^ type_vars)]
-                            (in [[name pm anns] {#VariableField [sm type]}])))))
+                            (in [[name pm anns] {#VariableField [sm static? type]}])))))
 
 (def: (argument^ type_vars)
   (-> (List (Type Var)) (Parser Argument))
@@ -790,7 +791,7 @@
   (-> (List (Type Var)) (Parser [Member_Declaration Method_Definition]))
   (<code>.form (do <>.monad
                  [pm privacy_modifier^
-                  strict_fp? (<>.parses? (<code>.this! (' "strict")))
+                  strict_fp? (<>.parses? (<code>.text! "strict"))
                   method_vars (<>.else (list) ..vars^)
                   .let [total_vars (list#composite class_vars method_vars)]
                   [_ self_name arguments] (<code>.form ($_ <>.and
@@ -1057,9 +1058,9 @@
         [(~+ (list#each value$ #method_inputs))]
         (~ (return$ #method_output))))))
 
-(def: (state_modifier$ sm)
+(def: (state_modifier$ it)
   (-> State Code)
-  (case sm
+  (case it
     {#VolatileS} (' "volatile")
     {#FinalS}    (' "final")
     {#DefaultS}  (' "default")))
@@ -1074,10 +1075,13 @@
         (~ value)
         ))
 
-    {#VariableField sm class}
+    {#VariableField [state static? class]}
     (` ("variable" (~ (code.text name))
         (~ (privacy_modifier$ pm))
-        (~ (state_modifier$ sm))
+        (~ (state_modifier$ state))
+        (~+ (if static?
+              (list (' "static"))
+              (list)))
         [(~+ (list#each annotation$ anns))]
         (~ (value$ class))
         ))
@@ -1293,7 +1297,7 @@
 
         {.#None}
         (in (list (` (: (-> (.Primitive "java.lang.Object") (~ check_type))
-                        (function ((~ g!_) (~ g!unchecked))
+                        (.function ((~ g!_) (~ g!unchecked))
                           (~ check_code))))))
         ))))
 
@@ -1345,13 +1349,13 @@
       (do [! meta.monad]
         [arg_inputs (monad.each !
                                 (: (-> [Bit (Type Value)] (Meta [Bit Code]))
-                                   (function (_ [maybe? _])
+                                   (.function (_ [maybe? _])
                                      (with_symbols [arg_name]
                                        (in [maybe? arg_name]))))
                                 #import_member_args)
          .let [input_jvm_types (list#each product.right #import_member_args)
                arg_types (list#each (: (-> [Bit (Type Value)] Code)
-                                       (function (_ [maybe? arg])
+                                       (.function (_ [maybe? arg])
                                          (let [arg_type (value_type (value@ #import_member_mode commons) arg)]
                                            (if maybe?
                                              (` (Maybe (~ arg_type)))
@@ -1444,6 +1448,7 @@
     [type.short (list (` (.:as (.Primitive (~ (code.text box.short)))))) []]
     [type.int (list (` (.: (.Primitive (~ (code.text box.int)))))) []]
     [type.long (list (` (.:as (.Primitive (~ (code.text box.long)))))) []]
+    [type.char (list (` (.:as (.Primitive (~ (code.text box.char)))))) []]
     [type.float (list (` (.:as (.Primitive (~ (code.text box.float)))))) []]
     [type.double (list (` (.:as (.Primitive (~ (code.text box.double)))))) []]]]
   [#0 with_automatic_output_conversion ..box
@@ -1452,6 +1457,7 @@
     [type.short (list) [(` (.: (.Primitive (~ (code.text box.short)))))]]
     [type.int (list) [(` (.: (.Primitive (~ (code.text box.int)))))]]
     [type.long (list) [(` (.: (.Primitive (~ (code.text box.long)))))]]
+    [type.char (list) [(` (.: (.Primitive (~ (code.text box.char)))))]]
     [type.float (list) [(` (.: (.Primitive (~ (code.text box.float)))))]]
     [type.double (list) [(` (.: (.Primitive (~ (code.text box.double)))))]]]]
   )
@@ -1464,7 +1470,7 @@
   (-> Primitive_Mode (List (Type Value)) (List [Bit Code]) (List Code))
   (|> inputs
       (list.zipped/2 classes)
-      (list#each (function (_ [class [maybe? input]])
+      (list#each (.function (_ [class [maybe? input]])
                    (|> (if maybe?
                          (` (: (.Primitive (~ (code.text (..reflection class))))
                                ((~! !!!) (~ (..un_quoted input)))))
@@ -1480,7 +1486,7 @@
 
 (def: syntax_inputs
   (-> (List Code) (List Code))
-  (|>> (list#each (function (_ name)
+  (|>> (list#each (.function (_ name)
                     (list name (` (~! <code>.any)))))
        list#conjoint))
 
@@ -1501,7 +1507,7 @@
                                   (` (All ((~ g!_) (~+ =class_tvars))
                                        (.Primitive (~ (code.text full_name)) [(~+ =class_tvars)]))))))
                  getter_interop (: (-> Text Code)
-                                   (function (_ name)
+                                   (.function (_ name)
                                      (let [getter_name (code.symbol ["" (..import_name import_format method_prefix name)])]
                                        (` (def: (~ getter_name)
                                             (~ enum_type)
@@ -1668,7 +1674,7 @@
   (do [! meta.monad]
     [kind (class_kind declaration)
      =members (|> bundles
-                  (list#each (function (_ [import_format members])
+                  (list#each (.function (_ [import_format members])
                                (list#each (|>> [import_format]) members)))
                   list.together
                   (monad.each ! (member_import$ class_type_vars kind declaration)))]
@@ -1767,7 +1773,7 @@
                   (# meta.monad each (type.class name)
                      (: (Meta (List (Type Parameter)))
                         (monad.each meta.monad
-                                    (function (_ paramLT)
+                                    (.function (_ paramLT)
                                       (do meta.monad
                                         [paramJT (lux_type->jvm_type context paramLT)]
                                         (case (parser.parameter? paramJT)
@@ -1961,3 +1967,96 @@
   [as_char .Int ..long_to_char ..Long ..char_to_long ..Character of_char]
   [as_float .Frac ..double_to_float ..Double ..float_to_double ..Float of_float]
   )
+
+(type: (API of)
+  (Record
+   [#interface of
+    #type Code
+    #term Code]))
+
+(def: (api of)
+  (All (_ of) (-> (Parser of) (Parser (API of))))
+  (<code>.form
+   ($_ <>.and
+       of
+       <code>.any
+       <code>.any
+       )))
+
+(type: Constant
+  Text)
+
+(def: constant
+  (Parser Constant)
+  <code>.local_symbol)
+
+(type: Function
+  (Record
+   [#variables (List Text)
+    #name Text
+    #requirements (List [Text Code])]))
+
+(def: function
+  (Parser Function)
+  (<code>.form
+   ($_ <>.and
+       (<>.else (list) (<code>.tuple (<>.some <code>.local_symbol)))
+       <code>.local_symbol
+       (<code>.tuple (<>.some ($_ <>.and
+                                  <code>.local_symbol
+                                  <code>.any
+                                  )))
+       )))
+
+(type: Export
+  (Variant
+   {#Constant (API Constant)}
+   {#Function (API Function)}))
+
+(def: export
+  (Parser Export)
+  ($_ <>.or
+      (..api ..constant)
+      (..api ..function)
+      ))
+
+(syntax: .public (export: [api <code>.local_symbol
+                           exports (<>.many ..export)])
+  (let [initialization (: (List (API Constant))
+                          (list.all (.function (_ it)
+                                      (case it
+                                        {#Constant it}
+                                        {.#Some it}
+                                        
+                                        _
+                                        {.#None}))
+                                    exports))]
+    (in (list (` (..class: "final" (~ (code.local_symbol api))
+                   (~+ (list#each (.function (_ it)
+                                    (case it
+                                      {#Constant [name type term]}
+                                      (` ("public" "final" "static" (~ (code.local_symbol name)) (~ type)))
+                                      
+                                      {#Function [[variables name requirements] type term]}
+                                      (` ("public" "strict" "static"
+                                          [(~+ (list#each code.local_symbol variables))]
+                                          ((~ (code.local_symbol name))
+                                           [(~+ (|> requirements
+                                                    (list#each (.function (_ [name type])
+                                                                 (list (code.local_symbol name)
+                                                                       type)))
+                                                    list#conjoint))])
+                                          (~ type)
+                                          (~ term)))))
+                                  exports))
+                   ... Useless constructor
+                   ("private" [] ((~' new) (~' self) []) [] [])
+                   ("public" "strict" "static" [] ((~' <clinit>) [])
+                    (~' void)
+                    [(~+ (list#each (.function (_ [name type term])
+                                      (` ("jvm member put static"
+                                          (~ (code.text api))
+                                          (~ (code.text name))
+                                          ("jvm object cast" (~ term)))))
+                                    initialization))])
+                   ))))))
diff --git a/stdlib/source/library/lux/static.lux b/stdlib/source/library/lux/static.lux
index 9bb38bd1d..6de030bee 100644
--- a/stdlib/source/library/lux/static.lux
+++ b/stdlib/source/library/lux/static.lux
@@ -23,6 +23,7 @@
         (|>> (:as <type>) <format> list)
         (meta.eval <type> expression)))]
 
+  [bit .Bit code.bit]
   [nat .Nat code.nat]
   [int .Int code.int]
   [rev .Rev code.rev]
@@ -64,6 +65,7 @@
                                         <random>)]]
        (in (list (<format> result)))))]
 
+  [random_bit random.bit code.bit]
   [random_nat random.nat code.nat]
   [random_int random.int code.int]
   [random_rev random.rev code.rev]
diff --git a/stdlib/source/library/lux/target/jvm/bytecode.lux b/stdlib/source/library/lux/target/jvm/bytecode.lux
index 4cdd42299..55e9fa71f 100644
--- a/stdlib/source/library/lux/target/jvm/bytecode.lux
+++ b/stdlib/source/library/lux/target/jvm/bytecode.lux
@@ -1102,9 +1102,24 @@
          (..bytecode <consumption> $1 @_ <1> [index]))))]
 
   [$0 getstatic _.getstatic/1 _.getstatic/2]
-  [$1 putstatic _.putstatic/1 _.putstatic/2]
   [$1 getfield  _.getfield/1  _.getfield/2]
-  [$2 putfield  _.putfield/1  _.putfield/2]
+  )
+
+(template [<name> <consumption/1> <1> <consumption/2> <2>]
+  [(def: .public (<name> class field type)
+     (-> (Type Class) Text (Type Value) (Bytecode Any))
+     (do [! ..monad]
+       [index (<| ..lifted
+                  (//constant/pool.field (..reflection class))
+                  [//constant/pool.#name field
+                   //constant/pool.#descriptor (type.descriptor type)])]
+       (if (or (same? type.long type)
+               (same? type.double type))
+         (..bytecode <consumption/2> $0 @_ <2> [index])
+         (..bytecode <consumption/1> $0 @_ <1> [index]))))]
+
+  [putstatic $1 _.putstatic/1 $2 _.putstatic/2]
+  [putfield  $2 _.putfield/1  $3 _.putfield/2]
   )
 
 (exception: .public (invalid_range_for_try [start Address
diff --git a/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/analysis/jvm.lux b/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/analysis/jvm.lux
index 8e12692c9..ea13344ed 100644
--- a/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/analysis/jvm.lux
+++ b/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/analysis/jvm.lux
@@ -917,7 +917,7 @@
                 (function (_ superJT)
                   (do !
                     [superJT (phase.lifted (reflection!.type superJT))
-                     .let [super_name (|> superJT ..reflection)]
+                     .let [super_name (..reflection superJT)]
                      super_class (phase.lifted (reflection!.load class_loader super_name))
                      superT (reflection_type mapping superJT)]
                     (in [[super_name superT] (java/lang/Class::isAssignableFrom super_class target_class)])))
@@ -1042,7 +1042,7 @@
         (in (<| {/////analysis.#Extension extension_name}
                 (list (/////analysis.text class)
                       (/////analysis.text field)
-                      (/////analysis.text (|> fieldJT ..reflection)))))))]))
+                      (/////analysis.text (..signature fieldJT)))))))]))
 
 (def: (put::static class_loader)
   (-> java/lang/ClassLoader Handler)
@@ -1058,14 +1058,15 @@
                                          (reflection!.static_field field class)))
          _ (phase.assertion ..deprecated_field [class field]
                             (not deprecated?))
-         _ (phase.assertion ..cannot_set_a_final_field [class field]
-                            (not final?))
+         ... _ (phase.assertion ..cannot_set_a_final_field [class field]
+         ...                    (not final?))
          fieldT (reflection_type luxT.fresh fieldJT)
          valueA (<| (typeA.expecting fieldT)
                     (analyse archive valueC))]
         (in (<| {/////analysis.#Extension extension_name}
                 (list (/////analysis.text class)
                       (/////analysis.text field)
+                      (/////analysis.text (..signature fieldJT))
                       valueA)))))]))
 
 (def: (get::virtual class_loader)
@@ -1090,7 +1091,7 @@
         (in (<| {/////analysis.#Extension extension_name}
                 (list (/////analysis.text class)
                       (/////analysis.text field)
-                      (/////analysis.text (..reflection fieldJT))
+                      (/////analysis.text (..signature fieldJT))
                       objectA)))))]))
 
 (def: (put::virtual class_loader)
@@ -1119,7 +1120,7 @@
         (in (<| {/////analysis.#Extension extension_name}
                 (list (/////analysis.text class)
                       (/////analysis.text field)
-                      (/////analysis.text (..reflection fieldJT))
+                      (/////analysis.text (..signature fieldJT))
                       valueA
                       objectA)))))]))
 
@@ -1775,6 +1776,14 @@
 (type: Exception
   (Type Class))
 
+(def: .public parameter_types
+  (-> (List (Type Var)) (Check (List [(Type Var) .Type])))
+  (monad.each check.monad
+              (function (_ parameterJ)
+                (do check.monad
+                  [[_ parameterT] check.existential]
+                  (in [parameterJ parameterT])))))
+
 (type: .public (Abstract_Method a)
   [Text
    Visibility
@@ -1799,11 +1808,24 @@
           ..return
           (<code>.tuple (<>.some ..class)))))
 
+(def: (method_mapping of_class parameters)
+  (-> Mapping (List (Type Var)) (Check Mapping))
+  (|> parameters
+      ..parameter_types
+      (check#each (list#mix (function (_ [parameterJ parameterT] mapping)
+                              (dictionary.has (parser.name parameterJ) parameterT mapping))
+                            of_class))))
+
+(def: class_mapping
+  (-> (List (Type Var)) (Check Mapping))
+  (..method_mapping luxT.fresh))
+
 (def: .public (analyse_abstract_method analyse archive method)
   (-> Phase Archive (Abstract_Method Code) (Operation Analysis))
   (let [[method_name visibility annotations vars arguments return exceptions] method]
     (do [! phase.monad]
-      [annotationsA (monad.each ! (function (_ [name parameters])
+      [mapping (typeA.check (method_mapping luxT.fresh vars))
+       annotationsA (monad.each ! (function (_ [name parameters])
                                     (do !
                                       [parametersA (monad.each ! (function (_ [name value])
                                                                    (do !
@@ -1856,7 +1878,8 @@
          annotations vars exceptions
          self_name arguments super_arguments body] method]
     (do [! phase.monad]
-      [annotationsA (monad.each ! (function (_ [name parameters])
+      [mapping (typeA.check (method_mapping mapping vars))
+       annotationsA (monad.each ! (function (_ [name parameters])
                                     (do !
                                       [parametersA (monad.each ! (function (_ [name value])
                                                                    (do !
@@ -1959,7 +1982,8 @@
          self_name arguments return exceptions
          body] method]
     (do [! phase.monad]
-      [annotationsA (monad.each ! (function (_ [name parameters])
+      [mapping (typeA.check (method_mapping mapping vars))
+       annotationsA (monad.each ! (function (_ [name parameters])
                                     (do !
                                       [parametersA (monad.each ! (function (_ [name value])
                                                                    (do !
@@ -1968,7 +1992,7 @@
                                                                parameters)]
                                       (in [name parametersA])))
                                 annotations)
-       returnT (reflection_return mapping return)
+       :return: (boxed_reflection_return mapping return)
        arguments' (monad.each !
                               (function (_ [name jvmT])
                                 (do !
@@ -1979,7 +2003,7 @@
                          {.#Item [self_name selfT]}
                          list.reversed
                          (list#mix scope.with_local (analyse archive body))
-                         (typeA.expecting returnT)
+                         (typeA.expecting :return:)
                          scope.with)]
       (in (/////analysis.tuple (list (/////analysis.text ..virtual_tag)
                                      (/////analysis.text method_name)
@@ -2033,7 +2057,8 @@
          arguments return exceptions
          body] method]
     (do [! phase.monad]
-      [annotationsA (monad.each ! (function (_ [name parameters])
+      [mapping (typeA.check (method_mapping mapping vars))
+       annotationsA (monad.each ! (function (_ [name parameters])
                                     (do !
                                       [parametersA (monad.each ! (function (_ [name value])
                                                                    (do !
@@ -2042,7 +2067,7 @@
                                                                parameters)]
                                       (in [name parametersA])))
                                 annotations)
-       returnT (reflection_return mapping return)
+       :return: (boxed_reflection_return mapping return)
        arguments' (monad.each !
                               (function (_ [name jvmT])
                                 (do !
@@ -2052,7 +2077,7 @@
        [scope bodyA] (|> arguments'
                          list.reversed
                          (list#mix scope.with_local (analyse archive body))
-                         (typeA.expecting returnT)
+                         (typeA.expecting :return:)
                          scope.with)]
       (in (/////analysis.tuple (list (/////analysis.text ..static_tag)
                                      (/////analysis.text method_name)
@@ -2141,19 +2166,6 @@
       {.#None}
       (phase.lifted (exception.except ..unknown_super [parent_name supers])))))
 
-(def: .public (with_fresh_type_vars vars mapping)
-  (-> (List (Type Var)) Mapping (Operation Mapping))
-  (do [! phase.monad]
-    [pairings (monad.each ! (function (_ var)
-                              (do !
-                                [[_ exT] (typeA.check check.existential)]
-                                (in [var exT])))
-                          vars)]
-    (in (list#mix (function (_ [varJ :var:] mapping)
-                    (dictionary.has (parser.name varJ) :var: mapping))
-                  mapping
-                  pairings))))
-
 (def: .public (with_override_mapping supers parent_type mapping)
   (-> (List (Type Class)) (Type Class) Mapping (Operation Mapping))
   (do phase.monad
@@ -2203,7 +2215,7 @@
          body] method]
     (do [! phase.monad]
       [mapping (..with_override_mapping supers parent_type mapping)
-       mapping (..with_fresh_type_vars vars mapping)
+       mapping (typeA.check (method_mapping mapping vars))
        annotationsA (monad.each ! (function (_ [name parameters])
                                     (do !
                                       [parametersA (monad.each ! (function (_ [name value])
@@ -2219,12 +2231,12 @@
                                   [luxT (boxed_reflection_type mapping jvmT)]
                                   (in [name luxT])))
                               arguments)
-       returnT (boxed_reflection_return mapping return)
+       :return: (boxed_reflection_return mapping return)
        [scope bodyA] (|> arguments'
                          {.#Item [self_name selfT]}
                          list.reversed
                          (list#mix scope.with_local (analyse archive body))
-                         (typeA.expecting returnT)
+                         (typeA.expecting :return:)
                          scope.with)]
       (in (/////analysis.tuple (list (/////analysis.text ..overriden_tag)
                                      (class_analysis parent_type)
@@ -2243,14 +2255,6 @@
                                       (..hidden_method_body (list.size arguments) bodyA)}
                                      ))))))
 
-(def: .public parameter_types
-  (-> (List (Type Var)) (Check (List [(Type Var) .Type])))
-  (monad.each check.monad
-              (function (_ parameterJ)
-                (do check.monad
-                  [[_ parameterT] check.existential]
-                  (in [parameterJ parameterT])))))
-
 (def: (matched? [sub sub_method subJT] [super super_method superJT])
   (-> [(Type Class) Text (Type Method)] [(Type Class) Text (Type Method)] Bit)
   (and (# descriptor.equivalence = (jvm.descriptor super) (jvm.descriptor sub))
@@ -2445,10 +2449,10 @@
           ... jvm.boolean jvm.byte jvm.short jvm.int jvm.char
           _.iconst_0)))
 
-(def: (mock_return returnT)
+(def: (mock_return :return:)
   (-> (Type Return) (Bytecode Any))
-  (case (jvm.void? returnT)
-    {.#Right returnT}
+  (case (jvm.void? :return:)
+    {.#Right :return:}
     _.return
 
     {.#Left valueT}
@@ -2591,14 +2595,8 @@
                           (list#each (|>> {#Overriden_Method}) methods)))
          ... Necessary for reflection to work properly during analysis.
          _ (phase.lifted (# host execute mock))
-         
-         parameters (typeA.check (..parameter_types parameters))
-         .let [mapping (list#mix (function (_ [parameterJ parameterT] mapping)
-                                   (dictionary.has (parser.name parameterJ)
-                                                   parameterT
-                                                   mapping))
-                                 luxT.fresh
-                                 parameters)]
+
+         mapping (typeA.check (..class_mapping parameters))
          super_classT (typeA.check (luxT.check (luxT.class mapping) (..signature super_class)))
          super_interfaceT+ (typeA.check (monad.each check.monad
                                                     (|>> ..signature (luxT.check (luxT.class mapping)))
diff --git a/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/directive/jvm.lux b/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/directive/jvm.lux
index 27b3cf9d2..3374c4ba4 100644
--- a/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/directive/jvm.lux
+++ b/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/directive/jvm.lux
@@ -167,7 +167,7 @@
           )))
 
 (type: Variable
-  [Text (Modifier field.Field) (Modifier field.Field) (List Annotation) (Type Value)])
+  [Text (Modifier field.Field) (Modifier field.Field) Bit (List Annotation) (Type Value)])
 
 (def: variable
   (Parser Variable)
@@ -177,6 +177,7 @@
           <code>.text
           ..visibility
           ..state
+          (<>.parses? (<code>.text! jvm.static_tag))
           (<code>.tuple (<>.some ..annotation))
           ..field_type
           )))
@@ -250,8 +251,13 @@
       (undefined))
 
     ... TODO: Handle annotations.
-    {#Variable [name visibility state annotations type]}
-    (field.field (modifier#composite visibility state)
+    {#Variable [name visibility state static? annotations type]}
+    (field.field ($_ modifier#composite
+                     (if static?
+                       field.static
+                       modifier.empty)
+                     visibility
+                     state)
                  name #1 type sequence.empty)))
 
 (def: annotation_parameter_synthesis
diff --git a/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/generation/jvm/host.lux b/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/generation/jvm/host.lux
index cb078ad43..4fbc7e603 100644
--- a/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/generation/jvm/host.lux
+++ b/stdlib/source/library/lux/tool/compiler/language/lux/phase/extension/generation/jvm/host.lux
@@ -351,9 +351,19 @@
   [return Return parser.return]
   )
 
+(def: reflection
+  (All (_ category)
+    (-> (Type (<| Return' Value' category)) Text))
+  (|>> type.reflection reflection.reflection))
+
+(def: signature
+  (All (_ category)
+    (-> (Type category) Text))
+  (|>> type.signature signature.signature))
+
 (exception: .public (not_an_object_array [arrayJT (Type Array)])
   (exception.report
-   ["JVM Type" (|> arrayJT type.signature signature.signature)]))
+   ["JVM Type" (..signature arrayJT)]))
 
 (def: .public object_array
   (Parser (Type Object))
@@ -589,11 +599,6 @@
                 (_.instanceof (type.class class (list)))
                 (///value.wrap type.boolean)))))]))
 
-(def: reflection
-  (All (_ category)
-    (-> (Type (<| Return' Value' category)) Text))
-  (|>> type.reflection reflection.reflection))
-
 (def: object::cast
   Handler
   (..custom
@@ -601,32 +606,27 @@
     (function (_ extension_name generate archive [from to valueS])
       (do //////.monad
         [valueG (generate archive valueS)]
-        (in (`` (cond (~~ (template [<object> <type> <unwrap>]
-                            [(and (text#= (..reflection <type>)
-                                          from)
-                                  (text#= <object>
-                                          to))
-                             (let [$<object> (type.class <object> (list))]
-                               ($_ _.composite
-                                   valueG
-                                   (///value.wrap <type>)))
-
-                             (and (text#= <object>
-                                          from)
-                                  (text#= (..reflection <type>)
-                                          to))
+        (in (`` (cond (~~ (template [<object> <type>]
+                            [(and (text#= (..reflection <type>) from)
+                                  (text#= <object> to))
+                             ($_ _.composite
+                                 valueG
+                                 (///value.wrap <type>))
+
+                             (and (text#= <object> from)
+                                  (text#= (..reflection <type>) to))
                              ($_ _.composite
                                  valueG
                                  (///value.unwrap <type>))]
                             
-                            [box.boolean type.boolean "booleanValue"]
-                            [box.byte    type.byte    "byteValue"]
-                            [box.short   type.short   "shortValue"]
-                            [box.int     type.int     "intValue"]
-                            [box.long    type.long    "longValue"]
-                            [box.float   type.float   "floatValue"]
-                            [box.double  type.double  "doubleValue"]
-                            [box.char    type.char    "charValue"]))
+                            [box.boolean type.boolean]
+                            [box.byte    type.byte]
+                            [box.short   type.short]
+                            [box.int     type.int]
+                            [box.long    type.long]
+                            [box.char    type.char]
+                            [box.float   type.float]
+                            [box.double  type.double]))
                       ... else
                       valueG)))))]))
 
@@ -643,96 +643,68 @@
           (/////bundle.install "cast" object::cast)
           )))
 
-(def: primitives
-  (Dictionary Text (Type Primitive))
-  (|> (list [(reflection.reflection reflection.boolean) type.boolean]
-            [(reflection.reflection reflection.byte) type.byte]
-            [(reflection.reflection reflection.short) type.short]
-            [(reflection.reflection reflection.int) type.int]
-            [(reflection.reflection reflection.long) type.long]
-            [(reflection.reflection reflection.float) type.float]
-            [(reflection.reflection reflection.double) type.double]
-            [(reflection.reflection reflection.char) type.char])
-      (dictionary.of_list text.hash)))
-
 (def: get::static
   Handler
   (..custom
-   [($_ <>.and <synthesis>.text <synthesis>.text <synthesis>.text)
-    (function (_ extension_name generate archive [class field unboxed])
-      (do //////.monad
-        [.let [$class (type.class class (list))]]
-        (case (dictionary.value unboxed ..primitives)
-          {.#Some primitive}
-          (in (_.getstatic $class field primitive))
-          
-          {.#None}
-          (in (_.getstatic $class field (type.class unboxed (list)))))))]))
+   [($_ <>.and <synthesis>.text <synthesis>.text ..value)
+    (function (_ extension_name generate archive [class field :unboxed:])
+      (# //////.monad in (_.getstatic (type.class class (list)) field :unboxed:)))]))
 
-(def: unitG (_.string //////synthesis.unit))
+(def: unitG
+  (_.string //////synthesis.unit))
 
 (def: put::static
   Handler
   (..custom
-   [($_ <>.and <synthesis>.text <synthesis>.text <synthesis>.text <synthesis>.any)
-    (function (_ extension_name generate archive [class field unboxed valueS])
+   [($_ <>.and <synthesis>.text <synthesis>.text ..value <synthesis>.any)
+    (function (_ extension_name generate archive [class field :unboxed: valueS])
       (do //////.monad
-        [valueG (generate archive valueS)
-         .let [$class (type.class class (list))]]
-        (case (dictionary.value unboxed ..primitives)
-          {.#Some primitive}
-          (in ($_ _.composite
-                  valueG
-                  (_.putstatic $class field primitive)
-                  ..unitG))
-          
-          {.#None}
-          (in ($_ _.composite
-                  valueG
-                  (_.checkcast $class)
-                  (_.putstatic $class field $class)
-                  ..unitG)))))]))
+        [valueG (generate archive valueS)]
+        (in ($_ _.composite
+                valueG
+                (case (parser.object? :unboxed:)
+                  {.#Some :unboxed:}
+                  (_.checkcast :unboxed:)
+                  
+                  {.#None}
+                  (_#in []))
+                (_.putstatic (type.class class (list)) field :unboxed:)
+                ..unitG))))]))
 
 (def: get::virtual
   Handler
   (..custom
-   [($_ <>.and <synthesis>.text <synthesis>.text <synthesis>.text <synthesis>.any)
-    (function (_ extension_name generate archive [class field unboxed objectS])
+   [($_ <>.and <synthesis>.text <synthesis>.text ..value <synthesis>.any)
+    (function (_ extension_name generate archive [class field :unboxed: objectS])
       (do //////.monad
         [objectG (generate archive objectS)
-         .let [$class (type.class class (list))
-               getG (case (dictionary.value unboxed ..primitives)
-                      {.#Some primitive}
-                      (_.getfield $class field primitive)
-                      
-                      {.#None}
-                      (_.getfield $class field (type.class unboxed (list))))]]
+         .let [:class: (type.class class (list))
+               getG (_.getfield :class: field :unboxed:)]]
         (in ($_ _.composite
                 objectG
-                (_.checkcast $class)
+                (_.checkcast :class:)
                 getG))))]))
 
 (def: put::virtual
   Handler
   (..custom
-   [($_ <>.and <synthesis>.text <synthesis>.text <synthesis>.text <synthesis>.any <synthesis>.any)
-    (function (_ extension_name generate archive [class field unboxed valueS objectS])
+   [($_ <>.and <synthesis>.text <synthesis>.text ..value <synthesis>.any <synthesis>.any)
+    (function (_ extension_name generate archive [class field :unboxed: valueS objectS])
       (do //////.monad
         [valueG (generate archive valueS)
          objectG (generate archive objectS)
-         .let [$class (type.class class (list))
-               putG (case (dictionary.value unboxed ..primitives)
-                      {.#Some primitive}
-                      (_.putfield $class field primitive)
+         .let [:class: (type.class class (list))
+               putG (case (parser.object? :unboxed:)
+                      {.#Some :unboxed:}
+                      ($_ _.composite
+                          (_.checkcast :unboxed:)
+                          (_.putfield :class: field :unboxed:))
                       
                       {.#None}
-                      (let [$unboxed (type.class unboxed (list))]
-                        ($_ _.composite
-                            (_.checkcast $unboxed)
-                            (_.putfield $class field $unboxed))))]]
+                      (_.putfield :class: field :unboxed:))]]
         (in ($_ _.composite
                 objectG
-                (_.checkcast $class)
+                (_.checkcast :class:)
                 _.dup
                 valueG
                 putG))))]))
@@ -764,7 +736,7 @@
     ..unitG
     
     {.#Left outputT}
-    (# _.monad in [])))
+    (_#in [])))
 
 (def: invoke::static
   Handler
diff --git a/stdlib/source/library/lux/tool/compiler/meta/packager.lux b/stdlib/source/library/lux/tool/compiler/meta/packager.lux
index 51f9069d0..5b0bd0438 100644
--- a/stdlib/source/library/lux/tool/compiler/meta/packager.lux
+++ b/stdlib/source/library/lux/tool/compiler/meta/packager.lux
@@ -26,7 +26,7 @@
 (type: .public Packager
   (-> (Dictionary file.Path Binary)
       Archive
-      unit.ID
+      (Maybe unit.ID)
       (Try (Either Binary
                    (List [Text Binary])))))
 
diff --git a/stdlib/source/library/lux/tool/compiler/meta/packager/jvm.lux b/stdlib/source/library/lux/tool/compiler/meta/packager/jvm.lux
index 9b84fa64d..99c9a316b 100644
--- a/stdlib/source/library/lux/tool/compiler/meta/packager/jvm.lux
+++ b/stdlib/source/library/lux/tool/compiler/meta/packager/jvm.lux
@@ -131,11 +131,18 @@
   "1.0")
 
 (def: (manifest program)
-  (-> unit.ID java/util/jar/Manifest)
-  (let [manifest (java/util/jar/Manifest::new)]
-    (exec (do_to (java/util/jar/Manifest::getMainAttributes manifest)
-            (java/util/jar/Attributes::put (java/util/jar/Attributes$Name::MAIN_CLASS) (|> program runtime.class_name name.internal name.external))
-            (java/util/jar/Attributes::put (java/util/jar/Attributes$Name::MANIFEST_VERSION) ..manifest_version))
+  (-> (Maybe unit.ID) java/util/jar/Manifest)
+  (let [manifest (java/util/jar/Manifest::new)
+        attrs (do_to (java/util/jar/Manifest::getMainAttributes manifest)
+                (java/util/jar/Attributes::put (java/util/jar/Attributes$Name::MANIFEST_VERSION) ..manifest_version))]
+    (exec
+      (case program
+        {.#Some program}
+        (do_to attrs
+          (java/util/jar/Attributes::put (java/util/jar/Attributes$Name::MAIN_CLASS) (|> program runtime.class_name name.internal name.external)))
+        
+        {.#None}
+        attrs)
       manifest)))
 
 (def: (write_class static module artifact custom content sink)
diff --git a/stdlib/source/program/compositor.lux b/stdlib/source/program/compositor.lux
index c835643dd..082ad0db9 100644
--- a/stdlib/source/program/compositor.lux
+++ b/stdlib/source/program/compositor.lux
@@ -94,7 +94,7 @@
     (in output)))
 
 (def: (package! fs host_dependencies [packager package] archive context)
-  (-> (file.System Async) (Dictionary file.Path Binary) [Packager file.Path] Archive unit.ID (Async (Try Any)))
+  (-> (file.System Async) (Dictionary file.Path Binary) [Packager file.Path] Archive (Maybe unit.ID) (Async (Try Any)))
   (case (packager host_dependencies archive context)
     {try.#Success content}
     (case content
@@ -173,7 +173,6 @@
                                          (Async (Try [Archive (directive.State+ <parameters>)]))
                                          (:expected (platform.compile lux_compiler phase_wrapper import file_context expander platform compilation [archive state])))
                _ (cache.cache! (value@ platform.#&file_system platform) file_context archive)
-               program_context (async#in ($/program.context archive))
                host_dependencies (..load_host_dependencies (value@ platform.#&file_system platform) compilation_host_dependencies)
                _ (..package! (for [@.old (file.async file.default)
                                    @.jvm (file.async file.default)
@@ -183,7 +182,7 @@
                              host_dependencies
                              packager,package
                              archive
-                             program_context)]
+                             (try.maybe ($/program.context archive)))]
               (in (debug.log! "Compilation complete!"))))
 
         {cli.#Export export}
diff --git a/stdlib/source/test/lux/ffi.jvm.lux b/stdlib/source/test/lux/ffi.jvm.lux
index 14f3d201a..9eb52d393 100644
--- a/stdlib/source/test/lux/ffi.jvm.lux
+++ b/stdlib/source/test/lux/ffi.jvm.lux
@@ -5,6 +5,7 @@
    ["[0]" type ("[1]#[0]" equivalence)]
    ["[0]" meta]
    ["[0]" debug]
+   ["[0]" static]
    [abstract
     [monad {"+" do}]]
    [control
@@ -24,8 +25,9 @@
     ["[0]" code]
     ["[0]" template]]
    [math
-    ["[0]" random {"+" Random}]
-    [number
+    ["[0]" random {"+" Random} ("[1]#[0]" monad)]
+    [number {"+" hex}
+     ["[0]" i64]
      ["n" nat]
      ["i" int ("[1]#[0]" equivalence)]
      ["f" frac ("[1]#[0]" equivalence)]]]
@@ -652,6 +654,166 @@
                                    false)))))
         )))
 
+(def: expected_boolean (/.as_boolean (static.random_bit)))
+(def: expected_byte (/.as_byte (static.random_int)))
+(def: expected_short (/.as_short (static.random_int)))
+(def: expected_int (/.as_int (static.random_int)))
+(def: expected_long (/.as_long (static.random_int)))
+(def: expected_char (/.as_char (static.random_int)))
+(def: expected_float (/.as_float (static.random_frac)))
+(def: expected_double (/.as_double (static.random_frac)))
+(def: expected_string (/.as_string (static.random code.text (random.ascii/lower 2))))
+
+(`` (`` (/.export: Primitives
+          ... Constants
+          (actual_boolean boolean ..expected_boolean)
+          (actual_byte byte ..expected_byte)
+          (actual_short short ..expected_short)
+          (actual_int int ..expected_int)
+          (actual_long long ..expected_long)
+          (actual_char char ..expected_char)
+          (actual_float float ..expected_float)
+          (actual_double double ..expected_double)
+
+          ... Methods
+          (~~ (template [<type> <+>]
+                [(((~~ (template.symbol [<type> "_method"]))
+                   [left <type>
+                    right <type>])
+                  <type>
+                  ((~~ (template.symbol [/._] ["as_" <type>]))
+                   (<+> ((~~ (template.symbol [/._] ["of_" <type>])) left)
+                        ((~~ (template.symbol [/._] ["of_" <type>])) right))))]
+
+                [boolean and]
+                [byte i.+]
+                [short i.+]
+                [int i.+]
+                [long i.+]
+                [char i.+]
+                [float f.+]
+                [double f.+]
+                ))
+          )))
+
+(`` (`` (/.import: Primitives
+          ["[1]::[0]"
+           ("static" actual_boolean boolean)
+           ("static" actual_byte byte)
+           ("static" actual_short short)
+           ("static" actual_int int)
+           ("static" actual_long long)
+           ("static" actual_char char)
+           ("static" actual_float float)
+           ("static" actual_double double)
+
+           (~~ (template [<type>]
+                 [("static" (~~ (template.symbol [<type> "_method"])) [<type> <type>] <type>)]
+
+                 [boolean]
+                 [byte]
+                 [short]
+                 [int]
+                 [long]
+                 [char]
+                 [float]
+                 [double]
+                 ))
+           ])))
+
+(/.export: Objects
+  (actual_string java/lang/String ..expected_string)
+
+  ((string_method [left java/lang/String right java/lang/String])
+   java/lang/String
+   (/.as_string (%.format (/.of_string left) (/.of_string right))))
+
+  (([a] left [left a right a]) a left)
+  (([a] right [left a right a]) a right))
+
+(/.import: Objects
+  ["[1]::[0]"
+   ("static" actual_string java/lang/String)
+
+   ("static" string_method [java/lang/String java/lang/String] java/lang/String)
+   
+   ("static" [a] left [a a] a)
+   ("static" [a] right [a a] a)])
+
+(def: tiny_int
+  (Random Int)
+  (random#each (|>> (i64.and (hex "F")) .int)
+               random.nat))
+
+(def: tiny_frac
+  (Random Frac)
+  (random#each (|>> (i64.and (hex "FFFF"))
+                    .int
+                    i.frac)
+               random.nat))
+
+(`` (`` (def: test|export
+          Test
+          (do [! random.monad]
+            [(~~ (template [<type> <as> <random>]
+                   [(~~ (template.symbol [left_ <type>])) (# ! each (|>> <as>) <random>)
+                    (~~ (template.symbol [right_ <type>])) (# ! each (|>> <as>) <random>)]
+
+                   [boolean /.as_boolean random.bit]
+                   [byte /.as_byte ..tiny_int]
+                   [short /.as_short ..tiny_int]
+                   [int /.as_int ..tiny_int]
+                   [long /.as_long ..tiny_int]
+                   [char /.as_char ..tiny_int]
+                   [float /.as_float ..tiny_frac]
+                   [double /.as_double ..tiny_frac]
+                   [string /.as_string (random.ascii/lower 1)]
+                   ))]
+            ($_ _.and
+                (_.cover [/.export:]
+                         (and (bit#= (/.of_boolean ..expected_boolean) (/.of_boolean (Primitives::actual_boolean)))
+                              (i#= (/.of_byte ..expected_byte) (/.of_byte (Primitives::actual_byte)))
+                              (i#= (/.of_short ..expected_short) (/.of_short (Primitives::actual_short)))
+                              (i#= (/.of_int ..expected_int) (/.of_int (Primitives::actual_int)))
+                              (i#= (/.of_long ..expected_long) (/.of_long (Primitives::actual_long)))
+                              (i#= (/.of_char ..expected_char) (/.of_char (Primitives::actual_char)))
+                              (f#= (/.of_float ..expected_float) (/.of_float (Primitives::actual_float)))
+                              (f#= (/.of_double ..expected_double) (/.of_double (Primitives::actual_double)))
+
+                              (~~ (template [<=> <+> <type>]
+                                    [(with_expansions [<left> (template.symbol ["left_" <type>])
+                                                       <right> (template.symbol ["right_" <type>])
+                                                       <of> (template.symbol [/._] ["of_" <type>])
+                                                       <method> (template.symbol ["Primitives::" <type> "_method"])]
+                                       (<=> (<+> (<of> <left>) (<of> <right>))
+                                            (<of> (<method> <left> <right>))))]
+
+                                    [bit#= and boolean]
+                                    [i#= i.+ byte]
+                                    [i#= i.+ short]
+                                    [i#= i.+ int]
+                                    [i#= i.+ long]
+                                    [i#= i.+ char]
+                                    [f#= f.+ float]
+                                    [f#= f.+ double]
+                                    ))
+
+                              (text#= (/.of_string ..expected_string) (/.of_string (Objects::actual_string)))
+                              
+                              (text#= (%.format (/.of_string left_string) (/.of_string right_string))
+                                      (/.of_string (Objects::string_method left_string right_string)))
+
+                              (text#= (/.of_string left_string)
+                                      (/.of_string (Objects::left left_string right_string)))
+                              (text#= (/.of_string right_string)
+                                      (/.of_string (Objects::right left_string right_string)))
+                              (i#= (/.of_long left_long)
+                                   (/.of_long (Objects::left left_long right_long)))
+                              (i#= (/.of_long right_long)
+                                   (/.of_long (Objects::right left_long right_long)))
+                              ))
+                )))))
+
 (def: .public test
   (<| (_.covering /._)
       ($_ _.and
@@ -661,4 +823,5 @@
           ..for_interface
           ..for_class
           ..for_exception
+          ..test|export
           )))