From e1a46ec687d5da858912cf3ee32e61a8d3bfc985 Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Sun, 13 May 2018 01:35:12 -0400
Subject: - "lux/data/coll/bits" now uses I64 instead of Nat.

---
 stdlib/source/lux/data/coll/bits.lux | 44 ++++++++++++++++++++----------------
 1 file changed, 24 insertions(+), 20 deletions(-)

diff --git a/stdlib/source/lux/data/coll/bits.lux b/stdlib/source/lux/data/coll/bits.lux
index 84e536676..950aadd0f 100644
--- a/stdlib/source/lux/data/coll/bits.lux
+++ b/stdlib/source/lux/data/coll/bits.lux
@@ -7,14 +7,14 @@
              (coll [array "array/" Fold<Array>])
              text/format)))
 
-(type: #export Chunk Nat)
+(type: #export Chunk I64)
 
 (def: #export chunk-size bit.width)
 
 (type: #export Bits
   (Array Chunk))
 
-(def: empty-chunk Chunk +0)
+(def: empty-chunk Chunk (.i64 +0))
 
 (def: #export empty
   Bits
@@ -23,7 +23,7 @@
 (def: #export (size bits)
   (-> Bits Nat)
   (array/fold (function (_ chunk total)
-                (n/+ total (bit.count chunk)))
+                (|> chunk bit.count (n/+ total)))
               +0
               bits))
 
@@ -31,9 +31,9 @@
   (-> Bits Nat)
   (|> bits array.size (n/* chunk-size)))
 
-(def: #export (empty? bits)
+(def: #export empty?
   (-> Bits Bool)
-  (n/= +0 (size bits)))
+  (|>> size (n/= +0)))
 
 (def: #export (get index bits)
   (-> Nat Bits Bool)
@@ -58,12 +58,13 @@
               output ..empty]
          (let [idx|output (dec size|output)]
            (if (n/> +0 size|output)
-             (case (|> (chunk idx|output input)
+             (case (|> (..chunk idx|output input)
                        (cond> [(new> (n/= chunk-index idx|output))]
                               [(<op> bit-index)]
 
                               ## else
-                              []))
+                              [])
+                       .nat)
                +0
                ## TODO: Remove 'no-op' once new-luxc is the official compiler.
                (let [no-op (recur (dec size|output) output)]
@@ -73,7 +74,7 @@
                (|> (if (is? ..empty output)
                      (: Bits (array.new size|output))
                      output)
-                   (array.write idx|output chunk)
+                   (array.write idx|output (.i64 chunk))
                    (recur (dec size|output))))
              output)))))]
 
@@ -88,9 +89,9 @@
                       (array.size sample))]
     (loop [idx +0]
       (if (n/< chunks idx)
-        (.or (|> (chunk idx sample)
-                 (bit.and (chunk idx reference))
-                 (n/= empty-chunk)
+        (.or (|> (..chunk idx sample)
+                 (bit.and (..chunk idx reference))
+                 ("lux i64 =" empty-chunk)
                  .not)
              (recur (inc idx)))
         false))))
@@ -105,7 +106,7 @@
     (loop [size|output size|output
            output ..empty]
       (let [idx (dec size|output)]
-        (case (bit.not (chunk idx input))
+        (case (|> input (..chunk idx) bit.not .nat)
           +0
           (recur (dec size|output) output)
 
@@ -114,7 +115,7 @@
             (|> (if (is? ..empty output)
                   (: Bits (array.new size|output))
                   output)
-                (array.write idx chunk)
+                (array.write idx (.i64 chunk))
                 (recur (dec size|output)))
             output))))))
 
@@ -131,7 +132,9 @@
               output ..empty]
          (let [idx (dec size|output)]
            (if (n/> +0 size|output)
-             (case (<op> (chunk idx param) (chunk idx subject))
+             (case (|> (..chunk idx subject)
+                       (<op> (..chunk idx param))
+                       .nat)
                +0
                (recur (dec size|output) output)
 
@@ -139,7 +142,7 @@
                (|> (if (is? ..empty output)
                      (: Bits (array.new size|output))
                      output)
-                   (array.write idx chunk)
+                   (array.write idx (.i64 chunk))
                    (recur (dec size|output))))
              output)))))]
 
@@ -150,11 +153,12 @@
 
 (struct: #export _ (Eq Bits)
   (def: (= reference sample)
-    (let [size|= (n/max (array.size reference)
-                        (array.size sample))]
+    (let [size (n/max (array.size reference)
+                      (array.size sample))]
       (loop [idx +0]
-        (if (n/< size|= idx)
-          (.and (n/= (chunk idx reference)
-                     (chunk idx sample))
+        (if (n/< size idx)
+          (.and ("lux i64 ="
+                 (..chunk idx reference)
+                 (..chunk idx sample))
                 (recur (inc idx)))
           true)))))
-- 
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