Optimized Tar parsing in order to fix stack-overflow when loading cache.

20 files changed, 640 insertions, 389 deletions

diff --git a/stdlib/source/format/lux/data/text.lux b/stdlib/source/format/lux/data/text.lux
index d998310ae..e4adae6f7 100644
--- a/stdlib/source/format/lux/data/text.lux
+++ b/stdlib/source/format/lux/data/text.lux
@@ -87,6 +87,26 @@
   [json     json.JSON         (of json.codec encoded)]
   )
 
+(with_template [<suffix> <name>]
+  [(def .public <name>
+     (Format Frac)
+     (|>> ((template.symbol [frac._] [<name>]))
+          frac.int
+          ..int
+          (text.suffix <suffix>)))]
+
+  ["%" percentage]
+
+  ... https://en.wikipedia.org/wiki/Degree_symbol
+  ["°" degree]
+
+  ... https://en.wikipedia.org/wiki/Per_mille
+  ["‰" permille]
+
+  ... https://en.wikipedia.org/wiki/Basis_point
+  ["‱" permyriad]
+  )
+
 (with_template [<type> <format>,<codec>]
   [(`` (with_template [<format> <codec>]
          [(def .public <format>
diff --git a/stdlib/source/library/lux/control/parser.lux b/stdlib/source/library/lux/control/parser.lux
index 207e486de..cd25b8bbf 100644
--- a/stdlib/source/library/lux/control/parser.lux
+++ b/stdlib/source/library/lux/control/parser.lux
@@ -99,31 +99,6 @@
         (Try [state of])))
   (parser input))
 
-(def .public (and left right)
-  (All (_ state left right)
-    (-> (Parser state left) (Parser state right)
-        (Parser state (And left right))))
-  (do [! ..monad]
-    [head left]
-    (of ! each (|>> [head]) right)))
-
-(def .public (or left right)
-  (All (_ state left right)
-    (-> (Parser state left) (Parser state right)
-        (Parser state (Or left right))))
-  (function (_ tokens)
-    (when (left tokens)
-      {try.#Success [tokens' output]}
-      {try.#Success [tokens' {0 #0 output}]}
-      
-      {try.#Failure _}
-      (when (right tokens)
-        {try.#Success [tokens' output]}
-        {try.#Success [tokens' {0 #1 output}]}
-        
-        {try.#Failure error}
-        {try.#Failure error}))))
-
 (def .public (either this that)
   (All (_ state of)
     (-> (Parser state of) (Parser state of)
@@ -136,27 +111,137 @@
       success
       success)))
 
-(def .public (some parser)
-  (All (_ state of)
-    (-> (Parser state of)
-        (Parser state (List of))))
-  (function (_ input)
-    (when (parser input)
-      {try.#Success [input' head]}
-      (..result (of ..monad each (|>> (list.partial head))
-                    (some parser))
-                input')
-
-      {try.#Failure _}
-      {try.#Success [input (list)]})))
-
-(def .public (many parser)
-  (All (_ state of)
-    (-> (Parser state of)
-        (Parser state (List of))))
-  (|> (..some parser)
-      (..and parser)
-      (of ..monad each (|>> {.#Item}))))
+(with_expansions [<failure> {try.#Failure error}
+                  <handle_failure!> (these <failure>
+                                           <failure>)]
+  (def .public (and left right)
+    (All (_ state left right)
+      (-> (Parser state left) (Parser state right)
+          (Parser state (And left right))))
+    (function (_ state)
+      (when (left state)
+        {try.#Success [state left]}
+        (when (right state)
+          {try.#Success [state right]}
+          {try.#Success [state [left right]]}
+          
+
+          <handle_failure!>)
+
+        <handle_failure!>)))
+
+  (def .public (or left right)
+    (All (_ state left right)
+      (-> (Parser state left) (Parser state right)
+          (Parser state (Or left right))))
+    (function (_ tokens)
+      (when (left tokens)
+        {try.#Success [tokens' output]}
+        {try.#Success [tokens' {0 #0 output}]}
+        
+        {try.#Failure _}
+        (when (right tokens)
+          {try.#Success [tokens' output]}
+          {try.#Success [tokens' {0 #1 output}]}
+          
+          <handle_failure!>))))
+
+  (def .public (some it)
+    (All (_ state of)
+      (-> (Parser state of)
+          (Parser state (List of))))
+    (function (_ state)
+      (loop (next [state state
+                   output (list)])
+        (when (it state)
+          {try.#Success [state head]}
+          (next state (list.partial head output))
+
+          {try.#Failure _}
+          {try.#Success [state (list.reversed output)]}))))
+
+  (def .public (many parser)
+    (All (_ state of)
+      (-> (Parser state of)
+          (Parser state (List of))))
+    (function (_ state)
+      (when (parser state)
+        {try.#Success [state head]}
+        (when (..some parser state)
+          {try.#Success [state tail]}
+          {try.#Success [state {.#Item head tail}]}
+
+          <handle_failure!>)
+
+        <handle_failure!>)))
+
+  (def .public (after parameter it)
+    (All (_ state _ of)
+      (-> (Parser state _) (Parser state of)
+          (Parser state of)))
+    (function (_ state)
+      (when (parameter state)
+        {try.#Success [state _]}
+        (when (it state)
+          <handle_failure!>
+
+          success
+          success)
+
+        <handle_failure!>)))
+
+  (def .public (before parameter it)
+    (All (_ state _ of)
+      (-> (Parser state _) (Parser state of)
+          (Parser state of)))
+    (function (_ state)
+      (when (it state)
+        {try.#Success [state it]}
+        (when (parameter state)
+          {try.#Success [state _]}
+          {try.#Success [state it]}
+
+          <handle_failure!>)
+
+        <handle_failure!>)))
+
+  (def .public (of_try operation)
+    (All (_ state of)
+      (-> (Try of)
+          (Parser state of)))
+    (function (_ input)
+      (when operation
+        {try.#Success output}
+        {try.#Success [input output]}
+        
+        <handle_failure!>)))
+
+  (def .public (parses parser)
+    (All (_ state of)
+      (-> (Parser state of)
+          (Parser state Any)))
+    (function (_ input)
+      (when (parser input)
+        {try.#Success [input' _]}
+        {try.#Success [input' []]}
+
+        <handle_failure!>)))
+
+  (def .public (codec codec parser)
+    (All (_ state medium of)
+      (-> (Codec medium of) (Parser state medium)
+          (Parser state of)))
+    (function (_ input)
+      (when (parser input)
+        {try.#Success [input' to_decode]}
+        (when (of codec decoded to_decode)
+          {try.#Success value}
+          {try.#Success [input' value]}
+
+          <handle_failure!>)
+
+        <handle_failure!>)))
+  )
 
 (def .public (exactly amount parser)
   (All (_ state of)
@@ -240,18 +325,6 @@
   (function (_ input)
     {try.#Failure message}))
 
-(def .public (of_try operation)
-  (All (_ state of)
-    (-> (Try of)
-        (Parser state of)))
-  (function (_ input)
-    (when operation
-      {try.#Success output}
-      {try.#Success [input output]}
-      
-      {try.#Failure error}
-      {try.#Failure error})))
-
 (def .public (else value parser)
   (All (_ state of)
     (-> of (Parser state of)
@@ -276,24 +349,8 @@
             (Parser state of))
         (Parser state of)))
   (function (_ inputs)
-    (..result (parser (rec parser)) inputs)))
-
-(def .public (after param subject)
-  (All (_ state _ of)
-    (-> (Parser state _) (Parser state of)
-        (Parser state of)))
-  (do ..monad
-    [_ param]
-    subject))
-
-(def .public (before param subject)
-  (All (_ state _ of)
-    (-> (Parser state _) (Parser state of)
-        (Parser state of)))
-  (do ..monad
-    [output subject
-     _ param]
-    (in output)))
+    (..result (parser (rec parser))
+              inputs)))
 
 (def .public (only test parser)
   (All (_ state of)
@@ -316,18 +373,6 @@
       {try.#Failure error}
       {try.#Success [input false]})))
 
-(def .public (parses parser)
-  (All (_ state of)
-    (-> (Parser state of)
-        (Parser state Any)))
-  (function (_ input)
-    (when (parser input)
-      {try.#Success [input' _]}
-      {try.#Success [input' []]}
-
-      {try.#Failure error}
-      {try.#Failure error})))
-
 (def .public (speculative parser)
   (All (_ state of)
     (-> (Parser state of)
@@ -339,20 +384,3 @@
 
       failure
       failure)))
-
-(def .public (codec codec parser)
-  (All (_ state medium of)
-    (-> (Codec medium of) (Parser state medium)
-        (Parser state of)))
-  (function (_ input)
-    (when (parser input)
-      {try.#Success [input' to_decode]}
-      (when (of codec decoded to_decode)
-        {try.#Success value}
-        {try.#Success [input' value]}
-
-        {try.#Failure error}
-        {try.#Failure error})
-
-      {try.#Failure error}
-      {try.#Failure error})))
diff --git a/stdlib/source/library/lux/data/color/hsb.lux b/stdlib/source/library/lux/data/color/hsb.lux
index 9bf403cf2..87d03137f 100644
--- a/stdlib/source/library/lux/data/color/hsb.lux
+++ b/stdlib/source/library/lux/data/color/hsb.lux
@@ -9,13 +9,19 @@
    [control
     [function
      [predicate (.only Predicate)]]]
+   [data
+    [text
+     ["%" \\format]]]
    [math
     [number
      ["f" frac]
+     ["[0]" nat]
      ["[0]" int]]]
    [meta
     [type
-     ["[0]" nominal]]]]]
+     ["[0]" nominal]]
+    ["[0]" macro
+     ["[1]" local]]]]]
  [//
   ["[0]" rgb (.only RGB)]])
 
@@ -90,7 +96,7 @@
   (def down
     (-> Nat
         Frac)
-    (|>> .int int.frac (f./ rgb_factor)))
+    (|>> nat.frac (f./ rgb_factor)))
 
   (def up
     (-> Frac
@@ -111,37 +117,33 @@
           saturation (if (f.= +0.0 brightness)
                        +0.0
                        (|> chroma (f./ brightness)))]
-      (nominal.abstraction
-       [#hue (cond (f.= +0.0 chroma)
-                   ... Achromatic
-                   +0.0
-                   ... Chromatic
-                   (and (f.= brightness red)
-                        (not (f.= red blue)))
-                   (|> green (f.- blue)
-                       (f./ chroma)
-                       (f.+ +0.0)
-                       (f./ +6.0))
-
-                   (f.= brightness green)
-                   (|> blue (f.- red)
-                       (f./ chroma)
-                       (f.+ +2.0)
-                       (f./ +6.0))
-
-                   ... (f.= brightness blue)
-                   (|> red (f.- green)
-                       (f./ chroma)
-                       (f.+ +4.0)
-                       (f./ +6.0)))
-        #saturation saturation
-        #brightness brightness])))
+      (macro.let [hue_of (template (_ <base> <shift> <adjustment>)
+                           [(|> <base> (f.- <shift>)
+                                (f./ chroma)
+                                <adjustment>
+                                (f./ +6.0))])]
+        (nominal.abstraction
+         [#hue (cond (f.= +0.0 chroma)
+                     ... Achromatic
+                     +0.0
+                     ... Chromatic
+                     (f.= brightness red)
+                     (hue_of green blue (f.mod +6.0))
+
+                     (f.= brightness green)
+                     (hue_of blue red (f.+ +2.0))
+
+                     ... (f.= brightness blue)
+                     (hue_of red green (f.+ +4.0)))
+          #saturation saturation
+          #brightness brightness]))))
 
   (def .public (rgb it)
     (-> HSB
         RGB)
     (let [[hue saturation brightness] (nominal.representation it)
           hue (|> hue (f.* +6.0))
+          
           i (f.floor hue)
           f (|> hue (f.- i))
           p (|> +1.0 (f.- saturation) (f.* brightness))
@@ -156,4 +158,13 @@
       (rgb.rgb (..up red)
                (..up green)
                (..up blue))))
+
+  (def .public (format it)
+    (%.Format HSB)
+    (let [it (nominal.representation it)]
+      (%.format "hsb("
+                (%.nat (f.nat (f.degree (the #hue it))))
+                " " (%.nat (f.nat (f.percentage (the #saturation it)))) "%"
+                " " (%.nat (f.nat (f.percentage (the #brightness it)))) "%"
+                ")")))
   )
diff --git a/stdlib/source/library/lux/data/color/hsl.lux b/stdlib/source/library/lux/data/color/hsl.lux
index a47ef0d2f..07366f0e9 100644
--- a/stdlib/source/library/lux/data/color/hsl.lux
+++ b/stdlib/source/library/lux/data/color/hsl.lux
@@ -10,6 +10,9 @@
    [control
     [function
      [predicate (.only Predicate)]]]
+   [data
+    [text
+     ["%" \\format]]]
    [math
     [number
      ["i" int]
@@ -187,3 +190,11 @@
   (|>> (the #luminance)
        (..hsl +0.0
               +0.0)))
+
+(def .public (format it)
+  (%.Format HSL)
+  (%.format "hsl("
+            (%.nat (f.nat (f.degree (the #hue it))))
+            " " (%.nat (f.nat (f.percentage (the #saturation it)))) "%"
+            " " (%.nat (f.nat (f.percentage (the #luminance it)))) "%"
+            ")"))
diff --git a/stdlib/source/library/lux/data/color/rgb.lux b/stdlib/source/library/lux/data/color/rgb.lux
index c930451af..ace3f6f70 100644
--- a/stdlib/source/library/lux/data/color/rgb.lux
+++ b/stdlib/source/library/lux/data/color/rgb.lux
@@ -13,7 +13,9 @@
     [function
      [predicate (.only Predicate)]]]
    [data
-    ["[0]" product]]
+    ["[0]" product]
+    [text
+     ["%" \\format]]]
    [math
     [number
      ["n" nat]
@@ -161,3 +163,11 @@
   [darker   ..black]
   [brighter ..white]
   )
+
+(def .public (format it)
+  (%.Format RGB)
+  (%.format "rgb("
+            (%.nat (the #red it))
+            "," (%.nat (the #green it))
+            "," (%.nat (the #blue it))
+            ")"))
diff --git a/stdlib/source/library/lux/data/format/tar.lux b/stdlib/source/library/lux/data/format/tar.lux
index 2f3aaa42e..b5627f0b2 100644
--- a/stdlib/source/library/lux/data/format/tar.lux
+++ b/stdlib/source/library/lux/data/format/tar.lux
@@ -35,7 +35,8 @@
      ["[0]" i64]]]
    [meta
     [macro
-     ["^" pattern]]
+     ["^" pattern]
+     ["[0]" template]]
     [type
      ["[0]" nominal (.except def #name)]]]
    [world
@@ -52,7 +53,8 @@
   8)
 
 (def (octal_padding max_size number)
-  (-> Size Text Text)
+  (-> Size Text
+      Text)
   (let [padding_size (n.- (text.size number)
                           max_size)
         padding (|> "0"
@@ -86,13 +88,15 @@
      Nat
 
      (def .public (<in> value)
-       (-> Nat (Try <type>))
+       (-> Nat
+           (Try <type>))
        (if (n.< <limit> value)
          {try.#Success (abstraction value)}
          (exception.except <exception> [value])))
 
      (def .public <out>
-       (-> <type> Nat)
+       (-> <type>
+           Nat)
        (|>> representation))
 
      (def <format>
@@ -107,7 +111,8 @@
               (!binary.segment padded_size))))
 
      (def <coercion>
-       (-> Nat <type>)
+       (-> Nat
+           <type>)
        (|>> (n.% <limit>)
             abstraction))
      )]
@@ -128,50 +133,59 @@
    (list ["Expected" (%.nat expected)]
          ["Actual" (%.nat actual)])))
 
+(def parsed
+  (template (_ <state> <binding> <parser> <body>)
+    [(when (<parser> <state>)
+       {try.#Success [<state> <binding>]}
+       <body>
+
+       {try.#Failure error}
+       {try.#Failure error})]))
+
 (def small_suffix
   (Parser Any)
-  (do <>.monad
-    [pre_end ?binary.bits_8
-     _ (let [expected (`` (char (,, (static ..blank))))]
-         (<>.assertion (exception.error ..wrong_character [expected pre_end])
-                       (n.= expected pre_end)))
-
-     end ?binary.bits_8
-     _ (let [expected (`` (char (,, (static ..null))))]
-         (<>.assertion (exception.error ..wrong_character [expected end])
-                       (n.= expected end)))]
-    (in [])))
+  (<| (function (_ state))
+      (parsed state pre_end ?binary.bits_8)
+      (let [expected (`` (char (,, (static ..blank))))])
+      (if (not (n.= expected pre_end))
+        (exception.except ..wrong_character [expected pre_end]))
+      (parsed state end ?binary.bits_8)
+      (let [expected (`` (char (,, (static ..null))))])
+      (if (not (n.= expected end))
+        (exception.except ..wrong_character [expected end]))
+      {try.#Success [state []]}))
 
 (def small_parser
   (Parser Small)
-  (do <>.monad
-    [digits (?binary.segment ..small_size)
-     digits (<>.of_try (of utf8.codec decoded digits))
-     _ ..small_suffix]
-    (<>.of_try
-     (do [! try.monad]
-       [value (of n.octal decoded digits)]
-       (..small value)))))
+  (<| (function (_ state))
+      (parsed state digits (?binary.segment ..small_size))
+      (parsed state digits (<>.of_try (of utf8.codec decoded digits)))
+      (parsed state _ ..small_suffix)
+      (do [! try.monad]
+        [value (of n.octal decoded digits)
+         value (..small value)]
+        (in [state value]))))
 
 (def big_parser
   (Parser Big)
-  (do <>.monad
-    [digits (?binary.segment ..big_size)
-     digits (<>.of_try (of utf8.codec decoded digits))
-     end ?binary.bits_8
-     _ (let [expected (`` (char (,, (static ..blank))))]
-         (<>.assertion (exception.error ..wrong_character [expected end])
-                       (n.= expected end)))]
-    (<>.of_try
-     (do [! try.monad]
-       [value (of n.octal decoded digits)]
-       (..big value)))))
+  (<| (function (_ state))
+      (parsed state digits (?binary.segment ..big_size))
+      (parsed state digits (<>.of_try (of utf8.codec decoded digits)))
+      (parsed state end ?binary.bits_8)
+      (let [expected (`` (char (,, (static ..blank))))])
+      (if (not (n.= expected end))
+        (exception.except ..wrong_character [expected end]))
+      (do [! try.monad]
+        [value (of n.octal decoded digits)
+         value (..big value)]
+        (in [state value]))))
 
 (nominal.def Checksum
   Text
 
   (def from_checksum
-    (-> Checksum Text)
+    (-> Checksum
+        Text)
     (|>> representation))
 
   (def dummy_checksum
@@ -182,7 +196,8 @@
     (%.format ..blank ..null))
 
   (def checksum
-    (-> Binary Nat)
+    (-> Binary
+        Nat)
     (binary.mix n.+ 0))
 
   (def checksum_checksum
@@ -192,7 +207,8 @@
         ..checksum))
 
   (def checksum_code
-    (-> Binary Checksum)
+    (-> Binary
+        Checksum)
     (|>> ..checksum
          ..as_small
          ..from_small
@@ -211,14 +227,14 @@
 
   (def checksum_parser
     (Parser [Nat Checksum])
-    (do <>.monad
-      [ascii (?binary.segment ..small_size)
-       digits (<>.of_try (of utf8.codec decoded ascii))
-       _ ..small_suffix
-       value (<>.of_try
-              (of n.octal decoded digits))]
-      (in [value
-           (abstraction (%.format digits ..checksum_suffix))])))
+    (<| (function (_ state))
+        (parsed state ascii (?binary.segment ..small_size))
+        (parsed state digits (<>.of_try (of utf8.codec decoded ascii)))
+        (parsed state _ ..small_suffix)
+        (parsed state value (<>.of_try
+                             (of n.octal decoded digits)))
+        {try.#Success [state [value
+                              (abstraction (%.format digits ..checksum_suffix))]]}))
   )
 
 (def last_ascii
@@ -226,7 +242,8 @@
   (number.hex "007F"))
 
 (def ascii?
-  (-> Text Bit)
+  (-> Text
+      Bit)
   (|>> (of utf8.codec encoded)
        (binary.mix (function (_ char verdict)
                      (.and verdict
@@ -242,7 +259,8 @@
 (def .public path_size Size 99)
 
 (def (un_padded string)
-  (-> Binary Binary)
+  (-> Binary
+      Binary)
   (when (binary!.size string)
     0
     string
@@ -271,7 +289,8 @@
               ["Maximum" (%.nat <size>)])))
 
      (def .public (<in> value)
-       (-> <representation> (Try <type>))
+       (-> <representation>
+           (Try <type>))
        (if (..ascii? value)
          (if (|> value
                  (of utf8.codec encoded)
@@ -282,7 +301,8 @@
          (exception.except ..not_ascii [value])))
 
      (def .public <out>
-       (-> <type> <representation>)
+       (-> <type>
+           <representation>)
        (|>> representation))
 
      (def <format>
@@ -296,16 +316,16 @@
 
      (def <parser>
        (Parser <type>)
-       (do <>.monad
-         [string (?binary.segment <size>)
-          end ?binary.bits_8
-          .let [expected (`` (char (,, (static ..null))))]
-          _ (<>.assertion (exception.error ..wrong_character [expected end])
-                          (n.= expected end))]
-         (<>.of_try
-          (do [! try.monad]
-            [text (of utf8.codec decoded (..un_padded string))]
-            (<in> text)))))
+       (<| (function (_ state))
+           (parsed state string (?binary.segment <size>))
+           (parsed state end ?binary.bits_8)
+           (let [expected (`` (char (,, (static ..null))))])
+           (if (not (n.= expected end))
+             (exception.except ..wrong_character [expected end]))
+           (do [! try.monad]
+             [text (of utf8.codec decoded (..un_padded string))
+              it (<in> text)]
+             (in [state it]))))
 
      (def .public <none>
        <type>
@@ -325,7 +345,8 @@
     (abstraction "ustar  "))
 
   (def from_magic
-    (-> Magic Text)
+    (-> Magic
+        Text)
     (|>> representation))
 
   (def magic_format
@@ -338,15 +359,14 @@
 
   (def magic_parser
     (Parser Magic)
-    (do <>.monad
-      [string (?binary.segment ..magic_size)
-       end ?binary.bits_8
-       .let [expected (`` (char (,, (static ..null))))]
-       _ (<>.assertion (exception.error ..wrong_character [expected end])
-                       (n.= expected end))]
-      (<>.of_try
-       (of try.monad each (|>> abstraction)
-           (of utf8.codec decoded string)))))
+    (<| (function (_ state))
+        (parsed state string (?binary.segment ..magic_size))
+        (parsed state end ?binary.bits_8)
+        (let [expected (`` (char (,, (static ..null))))])
+        (if (not (n.= expected end))
+          (exception.except ..wrong_character [expected end]))
+        (of try.monad each (|>> abstraction [state])
+            (of utf8.codec decoded string))))
   )
 
 (def block_size Size 512)
@@ -363,15 +383,18 @@
 (def device_size Size ..small_size)
 
 (def small_number
-  (-> Size Size)
+  (-> Size
+      Size)
   (|>> (all n.+ ..blank_size ..null_size)))
 
 (def big_number
-  (-> Size Size)
+  (-> Size
+      Size)
   (|>> (all n.+ ..blank_size)))
 
 (def string
-  (-> Size Size)
+  (-> Size
+      Size)
   (|>> (all n.+ ..null_size)))
 
 (def header_size
@@ -409,7 +432,8 @@
   Char
 
   (def link_flag
-    (-> Link_Flag Char)
+    (-> Link_Flag
+        Char)
     (|>> representation))
 
   (def link_flag_format
@@ -441,28 +465,30 @@
 
     (def link_flag_parser
       (Parser Link_Flag)
-      (do <>.monad
-        [it ?binary.bits_8]
-        (when (.nat it)
-          (^.with_template [<value> <link_flag>]
-            [<value>
-             (in <link_flag>)])
-          (<options>)
-
-          _
-          (<>.of_try
-           (exception.except ..invalid_link_flag [(.nat it)]))))))
+      (<| (function (_ state))
+          (parsed state it ?binary.bits_8)
+          (when (.nat it)
+            (^.with_template [<value> <link_flag>]
+              [<value>
+               {try.#Success [state <link_flag>]}])
+            (<options>)
+
+            _
+            (exception.except ..invalid_link_flag [(.nat it)]))))
+    )
   )
 
 (nominal.def .public Mode
   Nat
 
   (def .public mode
-    (-> Mode Nat)
+    (-> Mode
+        Nat)
     (|>> representation))
 
   (def .public (and left right)
-    (-> Mode Mode Mode)
+    (-> Mode Mode
+        Mode)
     (abstraction
      (i64.or (representation left)
              (representation right))))
@@ -526,13 +552,14 @@
 
     (def mode_parser
       (Parser Mode)
-      (do [! <>.monad]
-        [value (of ! each ..from_small ..small_parser)]
-        (if (n.> (representation ..maximum_mode)
-                 value)
-          (<>.of_try
-           (exception.except ..invalid_mode [value]))
-          (in (abstraction value))))))
+      (<| (function (_ state))
+          (parsed state value ..small_parser)
+          (let [value (..from_small value)])
+          (if (n.> (representation ..maximum_mode)
+                   value)
+            (exception.except ..invalid_mode [value])
+            {try.#Success [state (abstraction value)]})))
+    )
   )
 
 (def maximum_content_size
@@ -545,18 +572,22 @@
   [Big Binary]
 
   (def .public (content it)
-    (-> Binary (Try Content))
+    (-> Binary
+        (Try Content))
     (do try.monad
       [size (..big (binary!.size it))]
       (in (abstraction [size it]))))
 
   (def from_content
-    (-> Content [Big Binary])
+    (-> Content
+        [Big Binary])
     (|>> representation))
 
   (def .public data
-    (-> Content Binary)
-    (|>> representation product.right))
+    (-> Content
+        Binary)
+    (|>> representation
+         product.right))
   )
 
 (type .public ID
@@ -639,7 +670,8 @@
     (exception.except ..unknown_file [expected])))
 
 (def (blocks size)
-  (-> Big Nat)
+  (-> Big
+      Nat)
   (n.+ (n./ ..block_size
             (..from_big size))
        (when (n.% ..block_size (..from_big size))
@@ -647,7 +679,8 @@
          _ 1)))
 
 (def rounded_content_size
-  (-> Big Nat)
+  (-> Big
+      Nat)
   (|>> ..blocks
        (n.* ..block_size)))
 
@@ -699,14 +732,16 @@
         (!binary.segment ..block_size))))
 
 (def modification_time
-  (-> Instant Big)
+  (-> Instant
+      Big)
   (|>> instant.relative
        (duration.ticks duration.second)
        .nat
        ..as_big))
 
 (def (file_format link_flag)
-  (-> Link_Flag (Format File))
+  (-> Link_Flag
+      (Format File))
   (function (_ [path modification_time mode ownership content])
     (let [[size content] (..from_content content)
           format (all !binary.and
@@ -810,7 +845,8 @@
 ... To correct for this, it is necessary to calculate the checksum of just the checksum field, subtract that, and then
 ... add-in the checksum of the spaces.
 (def (expected_checksum checksum header)
-  (-> Checksum Binary Nat)
+  (-> Checksum Binary
+      Nat)
   (let [|checksum| (|> checksum
                        ..from_checksum
                        (of utf8.codec encoded)
@@ -821,81 +857,105 @@
 
 (def header_parser
   (Parser Header)
-  (do <>.monad
-    [binary_header (<>.speculative (?binary.segment block_size))
-     path ..path_parser
-     mode ..mode_parser
-     user_id ..small_parser
-     group_id ..small_parser
-     size ..big_parser
-     modification_time ..big_parser
-     [actual checksum_code] ..checksum_parser
-     _ (let [expected (expected_checksum checksum_code binary_header)]
-         (<>.of_try
-          (exception.assertion ..wrong_checksum [expected actual]
-                               (n.= expected actual))))
-     link_flag ..link_flag_parser
-     link_name ..path_parser
-     magic ..magic_parser
-     user_name ..name_parser
-     group_name ..name_parser
-     major_device ..small_parser
-     minor_device ..small_parser
-     _ (?binary.segment ..header_padding_size)]
-    (in [#path path
-         #mode mode
-         #user_id user_id
-         #group_id group_id
-         #size size
-         #modification_time modification_time
-         #checksum checksum_code
-         #link_flag link_flag
-         #link_name link_name
-         #magic magic
-         #user_name user_name
-         #group_name group_name
-         #major_device major_device
-         #minor_device minor_device])))
+  (function (_ state)
+    (`` (<| (,, (with_template [<binding> <parser>]
+                  [(parsed state <binding> <parser>)]
+
+                  [binary_header (<>.speculative (?binary.segment block_size))]
+                  [path ..path_parser]
+                  [mode ..mode_parser]
+                  [user_id ..small_parser]
+                  [group_id ..small_parser]
+                  [size ..big_parser]
+                  [modification_time ..big_parser]
+                  [[actual checksum_code] ..checksum_parser]
+                  ))
+            (let [expected (expected_checksum checksum_code binary_header)])
+            (if (not (n.= expected actual))
+              (exception.except ..wrong_checksum [expected actual]))
+            (,, (with_template [<binding> <parser>]
+                  [(parsed state <binding> <parser>)]
+
+                  [link_flag ..link_flag_parser]
+                  [link_name ..path_parser]
+                  [magic ..magic_parser]
+                  [user_name ..name_parser]
+                  [group_name ..name_parser]
+                  [major_device ..small_parser]
+                  [minor_device ..small_parser]
+                  [_ (?binary.segment ..header_padding_size)]
+                  ))
+            {try.#Success [state [#path path
+                                  #mode mode
+                                  #user_id user_id
+                                  #group_id group_id
+                                  #size size
+                                  #modification_time modification_time
+                                  #checksum checksum_code
+                                  #link_flag link_flag
+                                  #link_name link_name
+                                  #magic magic
+                                  #user_name user_name
+                                  #group_name group_name
+                                  #major_device major_device
+                                  #minor_device minor_device]]}))))
 
 (def (file_parser header)
-  (-> Header (Parser File))
-  (do <>.monad
-    [.let [size (the #size header)
-           rounded_size (..rounded_content_size size)]
-     content (?binary.segment (..from_big size))
-     content (<>.of_try (..content content))
-     _ (?binary.segment (n.- (..from_big size) rounded_size))]
-    (in [(the #path header)
-         (|> header
-             (the #modification_time)
-             ..from_big
-             .int
-             duration.of_millis
-             (duration.up (|> duration.second duration.millis .nat))
-             instant.absolute)
-         (the #mode header)
-         [#user [#name (the #user_name header)
-                 #id (the #user_id header)]
-          #group [#name (the #group_name header)
-                  #id (the #group_id header)]]
-         content])))
+  (-> Header
+      (Parser File))
+  (function (_ state)
+    (`` (<| (let [size (the #size header)
+                  rounded_size (..rounded_content_size size)])
+            (,, (with_template [<binding> <parser>]
+                  [(parsed state <binding> <parser>)]
+
+                  [content (?binary.segment (..from_big size))]
+                  [content (<>.of_try (..content content))]
+                  [_ (?binary.segment (n.- (..from_big size) rounded_size))]
+                  ))
+            {try.#Success [state [(the #path header)
+                                  (|> header
+                                      (the #modification_time)
+                                      ..from_big
+                                      .int
+                                      duration.of_millis
+                                      (duration.up (|> duration.second duration.millis .nat))
+                                      instant.absolute)
+                                  (the #mode header)
+                                  [#user [#name (the #user_name header)
+                                          #id (the #user_id header)]
+                                   #group [#name (the #group_name header)
+                                           #id (the #group_id header)]]
+                                  content]]}))))
 
 (def entry_parser
   (Parser Entry)
-  (do [! <>.monad]
-    [header ..header_parser]
-    (cond (same? ..contiguous (the #link_flag header))
-          (of ! each (|>> {..#Contiguous}) (..file_parser header))
-
-          (same? ..symbolic_link (the #link_flag header))
-          (in {..#Symbolic_Link (the #link_name header)})
-          
-          (same? ..directory (the #link_flag header))
-          (in {..#Directory (the #path header)})
-
-          ... (or (same? ..normal (the #link_flag header))
-          ...     (same? ..old_normal (the #link_flag header)))
-          (of ! each (|>> {..#Normal}) (..file_parser header)))))
+  (function (_ state)
+    (when (..header_parser state)
+      {try.#Success [state header]}
+      (template.let [(of_file <tag>)
+                     [(when (..file_parser header state)
+                        {try.#Success [state it]}
+                        {try.#Success [state {<tag> it}]}
+
+                        {try.#Failure error}
+                        {try.#Failure error})]
+                     
+                     (of_other <flag> <tag> <slot>)
+                     [(same? <flag> (the #link_flag header))
+                      {try.#Success [state {<tag> (the <slot> header)}]}]]
+        (`` (cond (or (same? ..normal (the #link_flag header))
+                      (same? ..old_normal (the #link_flag header)))
+                  (,, (of_file ..#Normal))
+
+                  (,, (of_other ..symbolic_link ..#Symbolic_Link #link_name))
+                  (,, (of_other ..directory ..#Directory #path))
+
+                  ... (same? ..contiguous (the #link_flag header))
+                  (,, (of_file ..#Contiguous)))))
+
+      {try.#Failure error}
+      {try.#Failure error})))
 
 ... It's safe to implement the parser this way because the range of values for Nat is 2^64
 ... Whereas the maximum possible value for the checksum of a 512 block is (256 × 512) = 131,072
diff --git a/stdlib/source/library/lux/ffi.lux b/stdlib/source/library/lux/ffi.lux
index f76ab1675..632fc1c3f 100644
--- a/stdlib/source/library/lux/ffi.lux
+++ b/stdlib/source/library/lux/ffi.lux
@@ -216,7 +216,8 @@
 
                  (def .public undefined?
                    (template (undefined? <it>)
-                     [(.as .Bit (.is .Any (undefined?|analysis <it>)))]))
+                     [(.as .Bit
+                           (..undefined?|analysis <it>))]))
 
                  (translation undefined|translation
                    [phase archive state]
@@ -232,7 +233,8 @@
 
                  (def .public undefined
                    (template (_)
-                     [(.is ..Undefined (undefined|analysis))]))
+                     [(.is ..Undefined
+                           (..undefined|analysis))]))
 
                  (def (pairs it)
                    (All (_ a) (-> (List a) (List [a a])))
@@ -298,7 +300,7 @@
                  (def .public object
                    (syntax (_ [it (<>.some <code>.any)])
                      (in (list (` (.as (..Object .Any)
-                                       (object|analysis (,* it))))))))
+                                       (..object|analysis (,* it))))))))
 
                  (translation set|translation
                    [phase archive state]
@@ -334,7 +336,8 @@
                    (syntax (_ [field <code>.any
                                value <code>.any
                                object <code>.any])
-                     (in (list (` (.as .Any (set|analysis (, field) (, value) (, object))))))))
+                     (in (list (` (.as .Any
+                                       (..set|analysis (, field) (, value) (, object))))))))
                  )
      ... else
      (these))
diff --git a/stdlib/source/library/lux/ffi/export.js.lux b/stdlib/source/library/lux/ffi/export.js.lux
index e13051cb4..6b1cff03f 100644
--- a/stdlib/source/library/lux/ffi/export.js.lux
+++ b/stdlib/source/library/lux/ffi/export.js.lux
@@ -21,9 +21,9 @@
     [macro
      [syntax (.only syntax)]
      ["[0]" expansion]]
-    [target
-     ["/" js]]
     [compiler
+     [target
+      ["/" js]]
      [meta
       [cache
        ["[0]" dependency
@@ -56,9 +56,10 @@
                     type.inferring
                     (next archive term))
 
+       lux (declaration.of_analysis meta.compiler_state)
        next declaration.synthesis
        term (declaration.of_synthesis
-             (next archive term))
+             (next lux archive term))
 
        dependencies (declaration.of_translation
                      (dependency.dependencies archive term))
@@ -66,7 +67,7 @@
        next declaration.translation
        [interim_artifacts term] (declaration.of_translation
                                  (translation.with_interim_artifacts archive
-                                   (next archive term)))
+                                   (next lux archive term)))
 
        _ (declaration.of_translation
           (do !
diff --git a/stdlib/source/library/lux/ffi/export.py.lux b/stdlib/source/library/lux/ffi/export.py.lux
index 66b0d1478..d9e729a8a 100644
--- a/stdlib/source/library/lux/ffi/export.py.lux
+++ b/stdlib/source/library/lux/ffi/export.py.lux
@@ -21,9 +21,9 @@
     [macro
      [syntax (.only syntax)]
      ["[0]" expansion]]
-    [target
-     ["/" python]]
     [compiler
+     [target
+      ["/" python]]
      [meta
       [cache
        ["[0]" dependency
@@ -37,7 +37,8 @@
         ["[0]" type]]]]]]]])
 
 (def definition
-  (-> Code (Meta [Text Code]))
+  (-> Code
+      (Meta [Text Code]))
   (|>> (list)
        (<code>.result (<| <code>.form
                           (<>.after (<code>.this_symbol (symbol .def#)))
diff --git a/stdlib/source/library/lux/math/number/frac.lux b/stdlib/source/library/lux/math/number/frac.lux
index 87e4958ab..a2148b973 100644
--- a/stdlib/source/library/lux/math/number/frac.lux
+++ b/stdlib/source/library/lux/math/number/frac.lux
@@ -919,3 +919,19 @@
                  (..< +0.0 remainder)))
       (..+ divisor remainder)
       remainder)))
+
+(with_template [<factor> <name>]
+  [(def .public <name>
+     (-> Frac
+         Frac)
+     (|>> (* <factor>)))]
+
+  [+100.0 percentage]
+  [+360.0 degree]
+
+  ... https://en.wikipedia.org/wiki/Per_mille
+  [+01,000.0 permille]
+
+  ... https://en.wikipedia.org/wiki/Basis_point
+  [+10,000.0 permyriad]
+  )
diff --git a/stdlib/source/library/lux/meta.lux b/stdlib/source/library/lux/meta.lux
index 3a45da32d..87987c272 100644
--- a/stdlib/source/library/lux/meta.lux
+++ b/stdlib/source/library/lux/meta.lux
@@ -26,8 +26,9 @@
   ["[0]" symbol (.use "[1]#[0]" absolute equivalence)]
   ["[0]" code]])
 
-... (.type (Meta a)
-...   (-> Lux (Try [Lux a])))
+... (.type (Meta of)
+...   (-> Lux
+...       (Try [Lux of])))
 
 (def .public functor
   (Functor Meta)
diff --git a/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/js/runtime.lux b/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/js/runtime.lux
index 0d2b79c43..2effaf905 100644
--- a/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/js/runtime.lux
+++ b/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/js/runtime.lux
@@ -558,10 +558,10 @@
           (_.define r00 (ll parameter))
 
           (_.define x00 (_.* l00 r00))
-          (_.define x16 (high_16 x00))
+          (_.define x16 (|> (high_16 x00)
+                            (_.+ (_.* l16 r00))))
           (_.statement (_.set x00 (low_16 x00)))
           
-          (_.statement (_.set x16 (|> x16 (_.+ (_.* l16 r00)))))
           (_.define x32 (high_16 x16))
           (_.statement (_.set x16 (|> x16 low_16 (_.+ (_.* l00 r16)))))
           (_.statement (_.set x32 (|> x32 (_.+ (high_16 x16)))))
diff --git a/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux b/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux
index c18822e3c..b2ecca205 100644
--- a/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux
+++ b/stdlib/source/library/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux
@@ -43,7 +43,6 @@
      ["[1][0]" foreign]]]
    ["/[1]" //
     ["[1][0]" runtime]
-    ["[1][0]" value]
     ["[1][0]" reference]
     [////
      [analysis (.only Environment)]
diff --git a/stdlib/source/test/lux.lux b/stdlib/source/test/lux.lux
index d0620d344..64ac888ac 100644
--- a/stdlib/source/test/lux.lux
+++ b/stdlib/source/test/lux.lux
@@ -1120,7 +1120,11 @@
 (def for_meta
   Test
   (all _.and
-       (_.coverage [/.Mode /.Info]
+       (_.coverage [/.Info
+                    /.#target /.#version /.#mode /.#configuration
+
+                    /.Mode
+                    /.#Build /.#Eval /.#Interpreter]
          (for_meta|Info))
        (_.coverage [/.Module_State
                     /.#Active /.#Compiled /.#Cached]
diff --git a/stdlib/source/test/lux/meta.lux b/stdlib/source/test/lux/meta.lux
index b13f9097c..2fdf791c4 100644
--- a/stdlib/source/test/lux/meta.lux
+++ b/stdlib/source/test/lux/meta.lux
@@ -50,10 +50,7 @@
   ["[1][0]" static]
   ["[1][0]" extension]
   ["[1][0]" global]
-  ["[1][0]" compiler
-   ... ["[1]/[0]" phase]
-   ]
-  ])
+  ["[1][0]" compiler]])
 
 (def !expect
   (template (_ <pattern> <value>)
@@ -1052,6 +1049,5 @@
                    (,, (for @.old (,, (these))
                             (,, (these /extension.test))))
                    /global.test
-
                    /compiler.test
                    )))))
diff --git a/stdlib/source/test/lux/meta/compiler/language/lux/phase.lux b/stdlib/source/test/lux/meta/compiler/language/lux/phase.lux
index 35e683c48..c3b774b5e 100644
--- a/stdlib/source/test/lux/meta/compiler/language/lux/phase.lux
+++ b/stdlib/source/test/lux/meta/compiler/language/lux/phase.lux
@@ -1,44 +1,52 @@
 ... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 ... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
-(.require
- [library
-  [lux (.except)
-   [abstract
-    ["[0]" monad (.only do)
-     ["[1]T" \\test]]
-    ["[0]" functor
-     ["[1]T" \\test (.only Injection Comparison)]]]
-   [control
-    ["[0]" pipe]
-    ["[0]" try (.use "[1]#[0]" functor)]
-    ["[0]" exception]]
-   [data
-    ["[0]" text (.use "[1]#[0]" equivalence)
-     ["%" \\format (.only format)]]]
-   [math
-    ["[0]" random]
-    [number
-     ["n" nat]
-     ["i" int]]]
-   [test
-    ["_" property (.only Test)]]]]
- [\\library
-  ["[0]" / (.only)
-   [////
-    [meta
-     ["[0]" archive]]]]]
- ["[0]" /
-  ["[1][0]" translation
-   ["[1]/[0]" jvm
-    ["[1]/[0]" host]
-    ["[1]/[0]" primitive]
-    ["[1]/[0]" type]
-    ["[1]/[0]" value]
-    ["[1]/[0]" runtime]
-    ["[1]/[0]" complex]
-    ["[1]/[0]" function]
-    ["[1]/[0]" reference]]]])
+(.`` (.`` (.require
+           [library
+            [lux (.except)
+             [abstract
+              ["[0]" monad (.only do)
+               ["[1]T" \\test]]
+              ["[0]" functor
+               ["[1]T" \\test (.only Injection Comparison)]]]
+             [control
+              ["[0]" pipe]
+              ["[0]" try (.use "[1]#[0]" functor)]
+              ["[0]" exception]]
+             [data
+              ["[0]" text (.use "[1]#[0]" equivalence)
+               ["%" \\format (.only format)]]]
+             [math
+              ["[0]" random]
+              [number
+               ["n" nat]
+               ["i" int]]]
+             [meta
+              [compiler
+               ["@" target]]]
+             [test
+              ["_" property (.only Test)]]]]
+           [\\library
+            ["[0]" / (.only)
+             [////
+              [meta
+               ["[0]" archive]]]]]
+           [/
+            [translation
+             (.,, (.for "JVM" (.,, (.these ["[0]" jvm
+                                            ["[1]/[0]" host]
+                                            ["[1]/[0]" primitive]
+                                            ["[1]/[0]" type]
+                                            ["[1]/[0]" value]
+                                            ["[1]/[0]" runtime]
+                                            ["[1]/[0]" complex]
+                                            ["[1]/[0]" function]
+                                            ["[1]/[0]" reference]]))
+                        ... "JavaScript" (.,, (.these ["[1]/[0]" js]))
+                        ... "Lua" (.,, (.these ["[1]/[0]" lua]))
+                        ... "Python" (.,, (.these ["[1]/[0]" python]))
+                        ... "Ruby" (.,, (.these ["[1]/[0]" ruby]))
+                        (.,, (.these))))]])))
 
 (def (injection value)
   (All (_ of)
@@ -215,19 +223,24 @@
 
 (def .public test
   Test
-  (<| (_.covering /._)
-      (all _.and
-           (_.for [/.Operation]
-                  ..test|operation)
-           (_.for [/.Phase]
-                  ..test|phase)
-
-           /translation/jvm/host.test
-           /translation/jvm/primitive.test
-           /translation/jvm/type.test
-           /translation/jvm/value.test
-           /translation/jvm/runtime.test
-           /translation/jvm/complex.test
-           /translation/jvm/function.test
-           /translation/jvm/reference.test
-           )))
+  (`` (`` (<| (_.covering /._)
+              (all _.and
+                   (_.for [/.Operation]
+                          ..test|operation)
+                   (_.for [/.Phase]
+                          ..test|phase)
+
+                   (,, (.for @.jvm (,, (.these jvm/host.test
+                                               jvm/primitive.test
+                                               jvm/type.test
+                                               jvm/value.test
+                                               jvm/runtime.test
+                                               jvm/complex.test
+                                               jvm/function.test
+                                               jvm/reference.test))
+                             ... "JavaScript" (,, (.these ["[1]/[0]" js]))
+                             ... "Lua" (,, (.these ["[1]/[0]" lua]))
+                             ... "Python" (,, (.these ["[1]/[0]" python]))
+                             ... "Ruby" (,, (.these ["[1]/[0]" ruby]))
+                             (,, (.these))))
+                   )))))
diff --git a/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method.lux b/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method.lux
index 3e3ec7a84..b5c3e53bc 100644
--- a/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method.lux
+++ b/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method.lux
@@ -20,7 +20,8 @@
   ["[0]" /]]
  ["[0]" /
   ["[1][0]" implementation]
-  ["[1][0]" reset]])
+  ["[1][0]" reset]
+  ["[1][0]" apply]])
 
 (def (valid_modifier? it)
   (-> (Modifier Method)
@@ -40,4 +41,5 @@
 
            (/implementation.test valid_modifier?)
            /reset.test
+           /apply.test
            )))
diff --git a/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux b/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux
new file mode 100644
index 000000000..b3672ca01
--- /dev/null
+++ b/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/apply.lux
@@ -0,0 +1,75 @@
+... This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+... If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+(.require
+ [library
+  [lux (.except)
+   [abstract
+    [monad (.only do)]]
+   [control
+    ["[0]" io]
+    ["[0]" try (.use "[1]#[0]" functor)]]
+   [math
+    ["[0]" random (.only Random)]
+    [number
+     ["[0]" i64 (.use "[1]#[0]" equivalence)]]]
+   [meta
+    [compiler
+     [meta
+      ["[0]" archive]]]]
+   [test
+    ["_" property (.only Test)]]]]
+ [\\library
+  ["[0]" / (.only)
+   [///
+    ["[0]" // (.only)
+     ["[0]" host]
+     ["[0]" runtime]
+     [///
+      ["[0]" extension]
+      [//
+       ["[0]" phase]
+       ["[0]" synthesis]
+       ["[0]" translation]]]]]]]
+ [////
+  ["[0]T" complex]])
+
+(def .public test
+  Test
+  (<| (_.covering /._)
+      (do [! random.monad]
+        [module (random.lower_cased 1)
+
+         dummy_i64 random.i64
+         expected_i64 (random.only (|>> (i64#= dummy_i64) not)
+                                   random.i64)
+
+         .let [extender (is extension.Extender
+                            (function (_ _)
+                              (undefined)))
+               next (//.translate extender complexT.lux)
+               @ [module 0 0]]])
+      (all _.and
+           (_.coverage [/.method]
+             (|> (do try.monad
+                   [[_ archive] (archive.reserve "" archive.empty)
+                    [_ archive] (archive.reserve module archive)
+                    .let [[_ host] (io.run! host.host)
+                          state (is runtime.State
+                                    (translation.state host module))]]
+                   (<| (phase.result state)
+                       (do phase.monad
+                         [_ (translation.set_buffer translation.empty_buffer)
+                          parameter (next archive (synthesis.i64 @ expected_i64))
+                          actual (next archive (<| (synthesis.function/apply @)
+                                                   [(synthesis.function/abstraction @ [(list) 2 (synthesis.variable/local @ 1)])
+                                                    (list (synthesis.i64 @ expected_i64)
+                                                          (synthesis.i64 @ dummy_i64))]))]
+                         (in (|> actual
+                                 [{.#None}]
+                                 (of host evaluate)
+                                 (try#each (|>> (as I64)
+                                                (i64#= expected_i64)))
+                                 (try.else false))))))
+                 (try.else false)))
+           )))
diff --git a/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/reset.lux b/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/reset.lux
index 105161cd1..8680035f3 100644
--- a/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/reset.lux
+++ b/stdlib/source/test/lux/meta/compiler/language/lux/phase/translation/jvm/function/method/reset.lux
@@ -105,12 +105,12 @@
                                                        ((as (-> I64 I64)
                                                             it)
                                                         expected_i64))))
-                                    (try.else false)
-                                    )
+                                    (try.else false))
 
                                 can_reset!
                                 (|> (do !.monad
-                                      [_ partially_applied_function]
+                                      [_ partially_applied_function
+                                       _ (!.checkcast class)]
                                       (/.call class 2))
                                     [{.#None}]
                                     (of host evaluate)
@@ -120,8 +120,7 @@
                                                             it)
                                                         expected_i64
                                                         expected_i64))))
-                                    (try.else false)
-                                    )]]
+                                    (try.else false))]]
                          (in (and what_happens_when_its_not_reset!
                                   can_reset!)))))
                  (try.else false)))
diff --git a/stdlib/source/test/lux/meta/compiler/meta/cache/dependency/module.lux b/stdlib/source/test/lux/meta/compiler/meta/cache/dependency/module.lux
index 854328124..8644da07e 100644
--- a/stdlib/source/test/lux/meta/compiler/meta/cache/dependency/module.lux
+++ b/stdlib/source/test/lux/meta/compiler/meta/cache/dependency/module.lux
@@ -45,7 +45,8 @@
                                        (set.of_list text.hash))]
                         (set#= expected actual)))
                     ))
-           (<| (_.for [/.Dependency])
+           (<| (_.for [/.Dependency
+                       /.#module /.#imports])
                (all _.and
                     (_.coverage [/.graph]
                       (let [expected (set.of_list text.hash (list module/0 module/1 module/2))