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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Data/HashMap/Base.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE BangPatterns, CPP, DeriveDataTypeable, MagicHash #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE ScopedTypeVariables #-}</span>
<a name="line-3"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 708</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE TypeFamilies #-}</span>
<a name="line-5"></a><span class='hs-cpp'>#endif</span>
<a name="line-6"></a><span class='hs-comment'>{-# OPTIONS_GHC -fno-full-laziness -funbox-strict-fields #-}</span>
<a name="line-7"></a>
<a name="line-8"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>HashMap</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span>
<a name="line-9"></a>    <span class='hs-layout'>(</span>
<a name="line-10"></a>      <span class='hs-conid'>HashMap</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-11"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>Leaf</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-12"></a>
<a name="line-13"></a>      <span class='hs-comment'>-- * Construction</span>
<a name="line-14"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>empty</span>
<a name="line-15"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>singleton</span>
<a name="line-16"></a>
<a name="line-17"></a>      <span class='hs-comment'>-- * Basic interface</span>
<a name="line-18"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>null</span>
<a name="line-19"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>size</span>
<a name="line-20"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>member</span>
<a name="line-21"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>lookup</span>
<a name="line-22"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>lookupDefault</span>
<a name="line-23"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>!</span><span class='hs-layout'>)</span>
<a name="line-24"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>insert</span>
<a name="line-25"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>insertWith</span>
<a name="line-26"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>unsafeInsert</span>
<a name="line-27"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>delete</span>
<a name="line-28"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>adjust</span>
<a name="line-29"></a>
<a name="line-30"></a>      <span class='hs-comment'>-- * Combine</span>
<a name="line-31"></a>      <span class='hs-comment'>-- ** Union</span>
<a name="line-32"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>union</span>
<a name="line-33"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>unionWith</span>
<a name="line-34"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>unions</span>
<a name="line-35"></a>
<a name="line-36"></a>      <span class='hs-comment'>-- * Transformations</span>
<a name="line-37"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>map</span>
<a name="line-38"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>mapWithKey</span>
<a name="line-39"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>traverseWithKey</span>
<a name="line-40"></a>
<a name="line-41"></a>      <span class='hs-comment'>-- * Difference and intersection</span>
<a name="line-42"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>difference</span>
<a name="line-43"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>intersection</span>
<a name="line-44"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>intersectionWith</span>
<a name="line-45"></a>
<a name="line-46"></a>      <span class='hs-comment'>-- * Folds</span>
<a name="line-47"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>foldl'</span>
<a name="line-48"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>foldlWithKey'</span>
<a name="line-49"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>foldr</span>
<a name="line-50"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>foldrWithKey</span>
<a name="line-51"></a>
<a name="line-52"></a>      <span class='hs-comment'>-- * Filter</span>
<a name="line-53"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>filter</span>
<a name="line-54"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>filterWithKey</span>
<a name="line-55"></a>
<a name="line-56"></a>      <span class='hs-comment'>-- * Conversions</span>
<a name="line-57"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>keys</span>
<a name="line-58"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>elems</span>
<a name="line-59"></a>
<a name="line-60"></a>      <span class='hs-comment'>-- ** Lists</span>
<a name="line-61"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>toList</span>
<a name="line-62"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>fromList</span>
<a name="line-63"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>fromListWith</span>
<a name="line-64"></a>
<a name="line-65"></a>      <span class='hs-comment'>-- Internals used by the strict version</span>
<a name="line-66"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>Hash</span>
<a name="line-67"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>Bitmap</span>
<a name="line-68"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>bitmapIndexedOrFull</span>
<a name="line-69"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>collision</span>
<a name="line-70"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>hash</span>
<a name="line-71"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>mask</span>
<a name="line-72"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>index</span>
<a name="line-73"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>bitsPerSubkey</span>
<a name="line-74"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>fullNodeMask</span>
<a name="line-75"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>sparseIndex</span>
<a name="line-76"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>two</span>
<a name="line-77"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>unionArrayBy</span>
<a name="line-78"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>update16</span>
<a name="line-79"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>update16M</span>
<a name="line-80"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>update16With'</span>
<a name="line-81"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>updateOrConcatWith</span>
<a name="line-82"></a>    <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-83"></a>
<a name="line-84"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>&lt;$&gt;</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Applicative</span><span class='hs-layout'>(</span><span class='hs-varid'>pure</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-85"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>DeepSeq</span> <span class='hs-layout'>(</span><span class='hs-conid'>NFData</span><span class='hs-layout'>(</span><span class='hs-varid'>rnf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-86"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>ST</span> <span class='hs-layout'>(</span><span class='hs-conid'>ST</span><span class='hs-layout'>)</span>
<a name="line-87"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Bits</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>.&amp;.</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>.|.</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>complement</span><span class='hs-layout'>)</span>
<a name="line-88"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-89"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Foldable</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Foldable</span>
<a name="line-90"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>L</span>
<a name="line-91"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Monoid</span> <span class='hs-layout'>(</span><span class='hs-conid'>Monoid</span><span class='hs-layout'>(</span><span class='hs-varid'>mempty</span><span class='hs-layout'>,</span> <span class='hs-varid'>mappend</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-92"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Traversable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-93"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span> <span class='hs-layout'>(</span><span class='hs-conid'>Word</span><span class='hs-layout'>)</span>
<a name="line-94"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==#</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>build</span><span class='hs-layout'>,</span> <span class='hs-varid'>reallyUnsafePtrEquality</span><span class='hs-cpp'>#</span><span class='hs-layout'>)</span>
<a name="line-95"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>filter</span><span class='hs-layout'>,</span> <span class='hs-varid'>foldr</span><span class='hs-layout'>,</span> <span class='hs-varid'>lookup</span><span class='hs-layout'>,</span> <span class='hs-varid'>map</span><span class='hs-layout'>,</span> <span class='hs-varid'>null</span><span class='hs-layout'>,</span> <span class='hs-varid'>pred</span><span class='hs-layout'>)</span>
<a name="line-96"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Read</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>step</span><span class='hs-layout'>)</span>
<a name="line-97"></a>
<a name="line-98"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>HashMap</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>A</span>
<a name="line-99"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashable</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>H</span>
<a name="line-100"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hashable</span><span class='hs-layout'>)</span>
<a name="line-101"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>HashMap</span><span class='hs-varop'>.</span><span class='hs-conid'>PopCount</span> <span class='hs-layout'>(</span><span class='hs-varid'>popCount</span><span class='hs-layout'>)</span>
<a name="line-102"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>HashMap</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span><span class='hs-varid'>runST</span><span class='hs-layout'>)</span>
<a name="line-103"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>HashMap</span><span class='hs-varop'>.</span><span class='hs-conid'>UnsafeShift</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeShiftL</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeShiftR</span><span class='hs-layout'>)</span>
<a name="line-104"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-105"></a>
<a name="line-106"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 707</span>
<a name="line-107"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span> <span class='hs-layout'>(</span><span class='hs-varid'>isTrue</span><span class='hs-cpp'>#</span><span class='hs-layout'>)</span>
<a name="line-108"></a><span class='hs-cpp'>#endif</span>
<a name="line-109"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 708</span>
<a name="line-110"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Exts</span>
<a name="line-111"></a><span class='hs-cpp'>#endif</span>
<a name="line-112"></a>
<a name="line-113"></a>
<a name="line-114"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="hash"></a><span class='hs-comment'>-- | Convenience function.  Compute a hash value for the given value.</span>
<a name="line-117"></a><span class='hs-definition'>hash</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>H</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashable</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Hash</span>
<a name="line-118"></a><span class='hs-definition'>hash</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-conid'>H</span><span class='hs-varop'>.</span><span class='hs-varid'>hash</span>
<a name="line-119"></a>
<a name="line-120"></a><a name="Leaf"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-121"></a>  <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>)</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="instance%20NFData%20(Leaf%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>NFData</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>NFData</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>NFData</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-124"></a>    <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>k</span> <span class='hs-varop'>`seq`</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>v</span>
<a name="line-125"></a>
<a name="line-126"></a><span class='hs-comment'>-- Invariant: The length of the 1st argument to 'Full' is</span>
<a name="line-127"></a><span class='hs-comment'>-- 2^bitsPerSubkey</span>
<a name="line-128"></a>
<a name="line-129"></a><a name="HashMap"></a><span class='hs-comment'>-- | A map from keys to values.  A map cannot contain duplicate keys;</span>
<a name="line-130"></a><a name="HashMap"></a><span class='hs-comment'>-- each key can map to at most one value.</span>
<a name="line-131"></a><a name="HashMap"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-132"></a>    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-133"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bitmap</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-134"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Leaf</span> <span class='hs-varop'>!</span><span class='hs-conid'>Hash</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-135"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Full</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-136"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Collision</span> <span class='hs-varop'>!</span><span class='hs-conid'>Hash</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-137"></a>      <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-138"></a>
<a name="line-139"></a><a name="instance%20NFData%20(HashMap%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>NFData</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>NFData</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>NFData</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-140"></a>    <span class='hs-varid'>rnf</span> <span class='hs-conid'>Empty</span>                 <span class='hs-keyglyph'>=</span> <span class='hs-conid'>()</span>
<a name="line-141"></a>    <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>ary</span>
<a name="line-142"></a>    <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>            <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>l</span>
<a name="line-143"></a>    <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>            <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>ary</span>
<a name="line-144"></a>    <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>ary</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="instance%20Functor%20(HashMap%20k)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Functor</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-147"></a>    <span class='hs-varid'>fmap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="instance%20Foldable.Foldable%20(HashMap%20k)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Foldable</span><span class='hs-varop'>.</span><span class='hs-conid'>Foldable</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-150"></a>    <span class='hs-varid'>foldr</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldrWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-151"></a>
<a name="line-152"></a><a name="instance%20Monoid%20(HashMap%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Monoid</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-153"></a>  <span class='hs-varid'>mempty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>empty</span>
<a name="line-154"></a>  <span class='hs-comment'>{-# INLINE mempty #-}</span>
<a name="line-155"></a>  <span class='hs-varid'>mappend</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>union</span>
<a name="line-156"></a>  <span class='hs-comment'>{-# INLINE mappend #-}</span>
<a name="line-157"></a>
<a name="line-158"></a><a name="instance%20Data%20(HashMap%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Data</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span> <span class='hs-varid'>v</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Data</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-159"></a>    <span class='hs-varid'>gfoldl</span> <span class='hs-varid'>f</span> <span class='hs-varid'>z</span> <span class='hs-varid'>m</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>z</span> <span class='hs-varid'>fromList</span> <span class='hs-varop'>`f`</span> <span class='hs-varid'>toList</span> <span class='hs-varid'>m</span>
<a name="line-160"></a>    <span class='hs-varid'>toConstr</span> <span class='hs-keyword'>_</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromListConstr</span>
<a name="line-161"></a>    <span class='hs-varid'>gunfold</span> <span class='hs-varid'>k</span> <span class='hs-varid'>z</span> <span class='hs-varid'>c</span>  <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>constrIndex</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>of</span>
<a name="line-162"></a>        <span class='hs-num'>1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>z</span> <span class='hs-varid'>fromList</span><span class='hs-layout'>)</span>
<a name="line-163"></a>        <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>error</span> <span class='hs-str'>"gunfold"</span>
<a name="line-164"></a>    <span class='hs-varid'>dataTypeOf</span> <span class='hs-keyword'>_</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hashMapDataType</span>
<a name="line-165"></a>    <span class='hs-varid'>dataCast2</span> <span class='hs-varid'>f</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gcast2</span> <span class='hs-varid'>f</span>
<a name="line-166"></a>
<a name="line-167"></a><a name="fromListConstr"></a><span class='hs-definition'>fromListConstr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Constr</span>
<a name="line-168"></a><span class='hs-definition'>fromListConstr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkConstr</span> <span class='hs-varid'>hashMapDataType</span> <span class='hs-str'>"fromList"</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>Prefix</span>
<a name="line-169"></a>
<a name="line-170"></a><a name="hashMapDataType"></a><span class='hs-definition'>hashMapDataType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DataType</span>
<a name="line-171"></a><span class='hs-definition'>hashMapDataType</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkDataType</span> <span class='hs-str'>"Data.HashMap.Base.HashMap"</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>fromListConstr</span><span class='hs-keyglyph'>]</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="Hash"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Hash</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Word</span>
<a name="line-174"></a><a name="Bitmap"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Word</span>
<a name="line-175"></a><a name="Shift"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Shift</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Int</span>
<a name="line-176"></a>
<a name="line-177"></a><a name="instance%20Read%20(HashMap%20k%20e)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Read</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-178"></a>    <span class='hs-varid'>readPrec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parens</span> <span class='hs-varop'>$</span> <span class='hs-varid'>prec</span> <span class='hs-num'>10</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-179"></a>      <span class='hs-conid'>Ident</span> <span class='hs-str'>"fromList"</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>lexP</span>
<a name="line-180"></a>      <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>readPrec</span>
<a name="line-181"></a>      <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromList</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-182"></a>
<a name="line-183"></a>    <span class='hs-varid'>readListPrec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readListPrecDefault</span>
<a name="line-184"></a>
<a name="line-185"></a><a name="instance%20Show%20(HashMap%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-186"></a>    <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>d</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showParen</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>10</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-187"></a>      <span class='hs-varid'>showString</span> <span class='hs-str'>"fromList "</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shows</span> <span class='hs-layout'>(</span><span class='hs-varid'>toList</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-188"></a>
<a name="line-189"></a><a name="instance%20Traversable%20(HashMap%20k)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Traversable</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-190"></a>    <span class='hs-varid'>traverse</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>traverseWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-191"></a>
<a name="line-192"></a><a name="instance%20Eq%20(HashMap%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Eq</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-193"></a>    <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>equal</span>
<a name="line-194"></a>
<a name="line-195"></a><a name="equal"></a><span class='hs-definition'>equal</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-196"></a><span class='hs-definition'>equal</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>toList'</span> <span class='hs-varid'>t1</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toList'</span> <span class='hs-varid'>t2</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-197"></a>  <span class='hs-keyword'>where</span>
<a name="line-198"></a>    <span class='hs-comment'>-- If the two trees are the same, then their lists of 'Leaf's and</span>
<a name="line-199"></a>    <span class='hs-comment'>-- 'Collision's read from left to right should be the same (modulo the</span>
<a name="line-200"></a>    <span class='hs-comment'>-- order of elements in 'Collision').</span>
<a name="line-201"></a>
<a name="line-202"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>l1</span> <span class='hs-conop'>:</span> <span class='hs-varid'>tl1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>l2</span> <span class='hs-conop'>:</span> <span class='hs-varid'>tl2</span><span class='hs-layout'>)</span>
<a name="line-203"></a>      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>k1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k2</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>l1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>l2</span>
<a name="line-204"></a>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>tl1</span> <span class='hs-varid'>tl2</span>
<a name="line-205"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>ary1</span> <span class='hs-conop'>:</span> <span class='hs-varid'>tl1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>ary2</span> <span class='hs-conop'>:</span> <span class='hs-varid'>tl2</span><span class='hs-layout'>)</span>
<a name="line-206"></a>      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>k1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k2</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary1</span> <span class='hs-varop'>==</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary2</span> <span class='hs-varop'>&amp;&amp;</span>
<a name="line-207"></a>        <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>ary1</span> <span class='hs-conid'>L</span><span class='hs-varop'>.\\</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span>
<a name="line-208"></a>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>tl1</span> <span class='hs-varid'>tl2</span>
<a name="line-209"></a>    <span class='hs-varid'>go</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-210"></a>    <span class='hs-varid'>go</span> <span class='hs-keyword'>_</span>  <span class='hs-keyword'>_</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-211"></a>
<a name="line-212"></a>    <span class='hs-varid'>toList'</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-varid'>toList'</span> <span class='hs-varid'>a</span> <span class='hs-varid'>ary</span>
<a name="line-213"></a>    <span class='hs-varid'>toList'</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>            <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-varid'>toList'</span> <span class='hs-varid'>a</span> <span class='hs-varid'>ary</span>
<a name="line-214"></a>    <span class='hs-varid'>toList'</span> <span class='hs-varid'>l</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>          <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>l</span> <span class='hs-conop'>:</span> <span class='hs-varid'>a</span>
<a name="line-215"></a>    <span class='hs-varid'>toList'</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>     <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span> <span class='hs-conop'>:</span> <span class='hs-varid'>a</span>
<a name="line-216"></a>    <span class='hs-varid'>toList'</span> <span class='hs-conid'>Empty</span>                 <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span>
<a name="line-217"></a>
<a name="line-218"></a><a name="isLeafOrCollision"></a><span class='hs-comment'>-- Helper function to detect 'Leaf's and 'Collision's.</span>
<a name="line-219"></a><span class='hs-definition'>isLeafOrCollision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-220"></a><span class='hs-definition'>isLeafOrCollision</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-221"></a><span class='hs-definition'>isLeafOrCollision</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-222"></a><span class='hs-definition'>isLeafOrCollision</span> <span class='hs-keyword'>_</span>               <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-223"></a>
<a name="line-224"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-225"></a><span class='hs-comment'>-- * Construction</span>
<a name="line-226"></a>
<a name="line-227"></a><a name="empty"></a><span class='hs-comment'>-- | /O(1)/ Construct an empty map.</span>
<a name="line-228"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-229"></a><span class='hs-definition'>empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-230"></a>
<a name="line-231"></a><a name="singleton"></a><span class='hs-comment'>-- | /O(1)/ Construct a map with a single element.</span>
<a name="line-232"></a><span class='hs-definition'>singleton</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-233"></a><span class='hs-definition'>singleton</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Leaf</span> <span class='hs-layout'>(</span><span class='hs-varid'>hash</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-234"></a>
<a name="line-235"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-236"></a><span class='hs-comment'>-- * Basic interface</span>
<a name="line-237"></a>
<a name="line-238"></a><a name="null"></a><span class='hs-comment'>-- | /O(1)/ Return 'True' if this map is empty, 'False' otherwise.</span>
<a name="line-239"></a><span class='hs-definition'>null</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-240"></a><span class='hs-definition'>null</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-241"></a><span class='hs-definition'>null</span> <span class='hs-keyword'>_</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-242"></a>
<a name="line-243"></a><a name="size"></a><span class='hs-comment'>-- | /O(n)/ Return the number of key-value mappings in this map.</span>
<a name="line-244"></a><span class='hs-definition'>size</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-245"></a><span class='hs-definition'>size</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>t</span> <span class='hs-num'>0</span>
<a name="line-246"></a>  <span class='hs-keyword'>where</span>
<a name="line-247"></a>    <span class='hs-varid'>go</span> <span class='hs-conid'>Empty</span>                <span class='hs-varop'>!</span><span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span>
<a name="line-248"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>            <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span>
<a name="line-249"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>go</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ary</span>
<a name="line-250"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>            <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>go</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ary</span>
<a name="line-251"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>     <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary</span>
<a name="line-252"></a>
<a name="line-253"></a><a name="member"></a><span class='hs-comment'>-- | /O(log n)/ Return 'True' if the specified key is present in the</span>
<a name="line-254"></a><span class='hs-comment'>-- map, 'False' otherwise.</span>
<a name="line-255"></a><span class='hs-definition'>member</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-256"></a><span class='hs-definition'>member</span> <span class='hs-varid'>k</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>k</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>of</span>
<a name="line-257"></a>    <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>False</span>
<a name="line-258"></a>    <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span>  <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span>
<a name="line-259"></a><span class='hs-comment'>{-# INLINABLE member #-}</span>
<a name="line-260"></a>
<a name="line-261"></a><a name="lookup"></a><span class='hs-comment'>-- | /O(log n)/ Return the value to which the specified key is mapped,</span>
<a name="line-262"></a><span class='hs-comment'>-- or 'Nothing' if this map contains no mapping for the key.</span>
<a name="line-263"></a><span class='hs-definition'>lookup</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>v</span>
<a name="line-264"></a><span class='hs-definition'>lookup</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span>
<a name="line-265"></a>  <span class='hs-keyword'>where</span>
<a name="line-266"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-267"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-268"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hx</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>kx</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-269"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hx</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>k</span> <span class='hs-varop'>==</span> <span class='hs-varid'>kx</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>x</span>  <span class='hs-comment'>-- TODO: Split test in two</span>
<a name="line-270"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>          <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-271"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-272"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-273"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>v</span> <span class='hs-layout'>(</span><span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-274"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-275"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>v</span> <span class='hs-layout'>(</span><span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-276"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hx</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-277"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hx</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lookupInArray</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-278"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-279"></a><span class='hs-comment'>{-# INLINABLE lookup #-}</span>
<a name="line-280"></a>
<a name="line-281"></a><a name="lookupDefault"></a><span class='hs-comment'>-- | /O(log n)/ Return the value to which the specified key is mapped,</span>
<a name="line-282"></a><span class='hs-comment'>-- or the default value if this map contains no mapping for the key.</span>
<a name="line-283"></a><span class='hs-definition'>lookupDefault</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-284"></a>              <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>v</span>          <span class='hs-comment'>-- ^ Default value to return.</span>
<a name="line-285"></a>              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span>
<a name="line-286"></a><span class='hs-definition'>lookupDefault</span> <span class='hs-varid'>def</span> <span class='hs-varid'>k</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>k</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-287"></a>    <span class='hs-conid'>Just</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span>
<a name="line-288"></a>    <span class='hs-keyword'>_</span>      <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>def</span>
<a name="line-289"></a><span class='hs-comment'>{-# INLINABLE lookupDefault #-}</span>
<a name="line-290"></a>
<a name="line-291"></a><a name="!"></a><span class='hs-comment'>-- | /O(log n)/ Return the value to which the specified key is mapped.</span>
<a name="line-292"></a><span class='hs-comment'>-- Calls 'error' if this map contains no mapping for the key.</span>
<a name="line-293"></a><span class='hs-layout'>(</span><span class='hs-varop'>!</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span>
<a name="line-294"></a><span class='hs-layout'>(</span><span class='hs-varop'>!</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>k</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>of</span>
<a name="line-295"></a>    <span class='hs-conid'>Just</span> <span class='hs-varid'>v</span>  <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span>
<a name="line-296"></a>    <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Data.HashMap.Base.(!): key not found"</span>
<a name="line-297"></a><span class='hs-comment'>{-# INLINABLE (!) #-}</span>
<a name="line-298"></a>
<a name="line-299"></a><span class='hs-keyword'>infixl</span> <span class='hs-num'>9</span> <span class='hs-varop'>!</span>
<a name="line-300"></a>
<a name="line-301"></a><a name="collision"></a><span class='hs-comment'>-- | Create a 'Collision' value with two 'Leaf' values.</span>
<a name="line-302"></a><span class='hs-definition'>collision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Hash</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-303"></a><span class='hs-definition'>collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>e1</span> <span class='hs-varid'>e2</span> <span class='hs-keyglyph'>=</span>
<a name="line-304"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>run</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new</span> <span class='hs-num'>2</span> <span class='hs-varid'>e1</span>
<a name="line-305"></a>                       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>1</span> <span class='hs-varid'>e2</span>
<a name="line-306"></a>                       <span class='hs-varid'>return</span> <span class='hs-varid'>mary</span>
<a name="line-307"></a>    <span class='hs-keyword'>in</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>v</span>
<a name="line-308"></a><span class='hs-comment'>{-# INLINE collision #-}</span>
<a name="line-309"></a>
<a name="line-310"></a><a name="bitmapIndexedOrFull"></a><span class='hs-comment'>-- | Create a 'BitmapIndexed' or 'Full' node.</span>
<a name="line-311"></a><span class='hs-definition'>bitmapIndexedOrFull</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-312"></a><span class='hs-definition'>bitmapIndexedOrFull</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span>
<a name="line-313"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>==</span> <span class='hs-varid'>fullNodeMask</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span>
<a name="line-314"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>         <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span>
<a name="line-315"></a><span class='hs-comment'>{-# INLINE bitmapIndexedOrFull #-}</span>
<a name="line-316"></a>
<a name="line-317"></a><a name="insert"></a><span class='hs-comment'>-- | /O(log n)/ Associate the specified value with the specified</span>
<a name="line-318"></a><span class='hs-comment'>-- key in this map.  If this map previously contained a mapping for</span>
<a name="line-319"></a><span class='hs-comment'>-- the key, the old value is replaced.</span>
<a name="line-320"></a><span class='hs-definition'>insert</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-321"></a><span class='hs-definition'>insert</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span>
<a name="line-322"></a>  <span class='hs-keyword'>where</span>
<a name="line-323"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-324"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>h</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-325"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>l</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-326"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>hy</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ky</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k</span>
<a name="line-327"></a>                    <span class='hs-keyword'>then</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`ptrEq`</span> <span class='hs-varid'>y</span>
<a name="line-328"></a>                         <span class='hs-keyword'>then</span> <span class='hs-varid'>t</span>
<a name="line-329"></a>                         <span class='hs-keyword'>else</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-330"></a>                    <span class='hs-keyword'>else</span> <span class='hs-varid'>collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-331"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runST</span> <span class='hs-layout'>(</span><span class='hs-varid'>two</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-332"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>
<a name="line-333"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span>
<a name="line-334"></a>            <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-335"></a>            <span class='hs-keyword'>in</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary'</span>
<a name="line-336"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-337"></a>            <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>st</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-338"></a>                <span class='hs-varop'>!</span><span class='hs-varid'>st'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-339"></a>            <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>st'</span> <span class='hs-varop'>`ptrEq`</span> <span class='hs-varid'>st</span>
<a name="line-340"></a>               <span class='hs-keyword'>then</span> <span class='hs-varid'>t</span>
<a name="line-341"></a>               <span class='hs-keyword'>else</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span><span class='hs-layout'>)</span>
<a name="line-342"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-343"></a>            <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span>
<a name="line-344"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-345"></a>        <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>st</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-346"></a>            <span class='hs-varop'>!</span><span class='hs-varid'>st'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-347"></a>        <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>st'</span> <span class='hs-varop'>`ptrEq`</span> <span class='hs-varid'>st</span>
<a name="line-348"></a>            <span class='hs-keyword'>then</span> <span class='hs-varid'>t</span>
<a name="line-349"></a>            <span class='hs-keyword'>else</span> <span class='hs-conid'>Full</span> <span class='hs-layout'>(</span><span class='hs-varid'>update16</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span><span class='hs-layout'>)</span>
<a name="line-350"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-351"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-352"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hy</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrSnocWith</span> <span class='hs-varid'>const</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-353"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>mask</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-354"></a><span class='hs-comment'>{-# INLINABLE insert #-}</span>
<a name="line-355"></a>
<a name="line-356"></a><a name="unsafeInsert"></a><span class='hs-comment'>-- | In-place update version of insert</span>
<a name="line-357"></a><span class='hs-definition'>unsafeInsert</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-358"></a><span class='hs-definition'>unsafeInsert</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runST</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span><span class='hs-layout'>)</span>
<a name="line-359"></a>  <span class='hs-keyword'>where</span>
<a name="line-360"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-361"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>h</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-362"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>l</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-363"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>hy</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ky</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k</span>
<a name="line-364"></a>                    <span class='hs-keyword'>then</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`ptrEq`</span> <span class='hs-varid'>y</span>
<a name="line-365"></a>                         <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varid'>t</span>
<a name="line-366"></a>                         <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-367"></a>                    <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-368"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>two</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span>
<a name="line-369"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>
<a name="line-370"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-371"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>insertM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-372"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary'</span>
<a name="line-373"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-374"></a>            <span class='hs-varid'>st</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-375"></a>            <span class='hs-varid'>st'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-376"></a>            <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeUpdateM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span>
<a name="line-377"></a>            <span class='hs-varid'>return</span> <span class='hs-varid'>t</span>
<a name="line-378"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-379"></a>            <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span>
<a name="line-380"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-381"></a>        <span class='hs-varid'>st</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-382"></a>        <span class='hs-varid'>st'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-383"></a>        <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeUpdateM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span>
<a name="line-384"></a>        <span class='hs-varid'>return</span> <span class='hs-varid'>t</span>
<a name="line-385"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-386"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-387"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hy</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrSnocWith</span> <span class='hs-varid'>const</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-388"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>mask</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-389"></a><span class='hs-comment'>{-# INLINABLE unsafeInsert #-}</span>
<a name="line-390"></a>
<a name="line-391"></a><a name="two"></a><span class='hs-comment'>-- | Create a map from two key-value pairs which hashes don't collide.</span>
<a name="line-392"></a><span class='hs-definition'>two</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Shift</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Hash</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Hash</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-393"></a><span class='hs-definition'>two</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span>
<a name="line-394"></a>  <span class='hs-keyword'>where</span>
<a name="line-395"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>v1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>v2</span>
<a name="line-396"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>bp1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>bp2</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-397"></a>            <span class='hs-varid'>st</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>v1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>v2</span>
<a name="line-398"></a>            <span class='hs-varid'>ary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>singletonM</span> <span class='hs-varid'>st</span>
<a name="line-399"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>bp1</span> <span class='hs-varid'>ary</span>
<a name="line-400"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>  <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-401"></a>            <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new</span> <span class='hs-num'>2</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h1</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>v1</span><span class='hs-layout'>)</span>
<a name="line-402"></a>            <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>idx2</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h2</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span>
<a name="line-403"></a>            <span class='hs-varid'>ary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeFreeze</span> <span class='hs-varid'>mary</span>
<a name="line-404"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>bp1</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>bp2</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary</span>
<a name="line-405"></a>      <span class='hs-keyword'>where</span>
<a name="line-406"></a>        <span class='hs-varid'>bp1</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>s</span>
<a name="line-407"></a>        <span class='hs-varid'>bp2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>s</span>
<a name="line-408"></a>        <span class='hs-varid'>idx2</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>s</span> <span class='hs-varop'>&lt;</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-409"></a>             <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>               <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-410"></a><span class='hs-comment'>{-# INLINE two #-}</span>
<a name="line-411"></a>
<a name="line-412"></a><a name="insertWith"></a><span class='hs-comment'>-- | /O(log n)/ Associate the value with the key in this map.  If</span>
<a name="line-413"></a><span class='hs-comment'>-- this map previously contained a mapping for the key, the old value</span>
<a name="line-414"></a><span class='hs-comment'>-- is replaced by the result of applying the given function to the new</span>
<a name="line-415"></a><span class='hs-comment'>-- and old value.  Example:</span>
<a name="line-416"></a><span class='hs-comment'>--</span>
<a name="line-417"></a><span class='hs-comment'>-- &gt; insertWith f k v map</span>
<a name="line-418"></a><span class='hs-comment'>-- &gt;   where f new old = new + old</span>
<a name="line-419"></a><span class='hs-definition'>insertWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-420"></a>            <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-421"></a><span class='hs-definition'>insertWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span>
<a name="line-422"></a>  <span class='hs-keyword'>where</span>
<a name="line-423"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-424"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>h</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-425"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>l</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-426"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>hy</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ky</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k</span>
<a name="line-427"></a>                    <span class='hs-keyword'>then</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-428"></a>                    <span class='hs-keyword'>else</span> <span class='hs-varid'>collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-429"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runST</span> <span class='hs-layout'>(</span><span class='hs-varid'>two</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-430"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>
<a name="line-431"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span>
<a name="line-432"></a>            <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-433"></a>            <span class='hs-keyword'>in</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary'</span>
<a name="line-434"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-435"></a>            <span class='hs-keyword'>let</span> <span class='hs-varid'>st</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-436"></a>                <span class='hs-varid'>st'</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-437"></a>                <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>st'</span>
<a name="line-438"></a>            <span class='hs-keyword'>in</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary'</span>
<a name="line-439"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-440"></a>            <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span>
<a name="line-441"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-442"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>st</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-443"></a>            <span class='hs-varid'>st'</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-444"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>update16</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>st'</span>
<a name="line-445"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-446"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-447"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-448"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hy</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrSnocWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-449"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>mask</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-450"></a><span class='hs-comment'>{-# INLINABLE insertWith #-}</span>
<a name="line-451"></a>
<a name="line-452"></a><a name="unsafeInsertWith"></a><span class='hs-comment'>-- | In-place update version of insertWith</span>
<a name="line-453"></a><span class='hs-definition'>unsafeInsertWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyword'>forall</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-454"></a>                 <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-455"></a>                 <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-456"></a><span class='hs-definition'>unsafeInsertWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runST</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span><span class='hs-layout'>)</span>
<a name="line-457"></a>  <span class='hs-keyword'>where</span>
<a name="line-458"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-459"></a>    <span class='hs-varid'>go</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Hash</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Shift</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-460"></a>       <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-461"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>h</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-462"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>l</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-463"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>hy</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ky</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k</span>
<a name="line-464"></a>                    <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-465"></a>                    <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-466"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>two</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span>
<a name="line-467"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>
<a name="line-468"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-469"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>insertM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-470"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary'</span>
<a name="line-471"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-472"></a>            <span class='hs-varid'>st</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-473"></a>            <span class='hs-varid'>st'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-474"></a>            <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeUpdateM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span>
<a name="line-475"></a>            <span class='hs-varid'>return</span> <span class='hs-varid'>t</span>
<a name="line-476"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-477"></a>            <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span>
<a name="line-478"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-479"></a>        <span class='hs-varid'>st</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-480"></a>        <span class='hs-varid'>st'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-481"></a>        <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeUpdateM</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span>
<a name="line-482"></a>        <span class='hs-varid'>return</span> <span class='hs-varid'>t</span>
<a name="line-483"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-484"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-485"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hy</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrSnocWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-486"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>mask</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-487"></a><span class='hs-comment'>{-# INLINABLE unsafeInsertWith #-}</span>
<a name="line-488"></a>
<a name="line-489"></a><a name="delete"></a><span class='hs-comment'>-- | /O(log n)/ Remove the mapping for the specified key from this map</span>
<a name="line-490"></a><span class='hs-comment'>-- if present.</span>
<a name="line-491"></a><span class='hs-definition'>delete</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-492"></a><span class='hs-definition'>delete</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span>
<a name="line-493"></a>  <span class='hs-keyword'>where</span>
<a name="line-494"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-495"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-496"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hy</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>ky</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-497"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>hy</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>ky</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-498"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>          <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-499"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>
<a name="line-500"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-501"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-502"></a>            <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>st</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-503"></a>                <span class='hs-varop'>!</span><span class='hs-varid'>st'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-504"></a>            <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>st'</span> <span class='hs-varop'>`ptrEq`</span> <span class='hs-varid'>st</span>
<a name="line-505"></a>                <span class='hs-keyword'>then</span> <span class='hs-varid'>t</span>
<a name="line-506"></a>                <span class='hs-keyword'>else</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>st'</span> <span class='hs-keyword'>of</span>
<a name="line-507"></a>                <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Empty</span>
<a name="line-508"></a>                      <span class='hs-keyglyph'>|</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary</span> <span class='hs-varop'>==</span> <span class='hs-num'>2</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-509"></a>                          <span class='hs-keyword'>case</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-510"></a>                          <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isLeafOrCollision</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>l</span>
<a name="line-511"></a>                          <span class='hs-layout'>(</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-varid'>l</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isLeafOrCollision</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>l</span>
<a name="line-512"></a>                          <span class='hs-keyword'>_</span>                               <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>bIndexed</span>
<a name="line-513"></a>                      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>bIndexed</span>
<a name="line-514"></a>                    <span class='hs-keyword'>where</span>
<a name="line-515"></a>                      <span class='hs-varid'>bIndexed</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>complement</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-516"></a>                <span class='hs-varid'>l</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isLeafOrCollision</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary</span> <span class='hs-varop'>==</span> <span class='hs-num'>1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>l</span>
<a name="line-517"></a>                <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span><span class='hs-layout'>)</span>
<a name="line-518"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-519"></a>            <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span>
<a name="line-520"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-521"></a>        <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>st</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-522"></a>            <span class='hs-varop'>!</span><span class='hs-varid'>st'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-523"></a>        <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>st'</span> <span class='hs-varop'>`ptrEq`</span> <span class='hs-varid'>st</span>
<a name="line-524"></a>            <span class='hs-keyword'>then</span> <span class='hs-varid'>t</span>
<a name="line-525"></a>            <span class='hs-keyword'>else</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>st'</span> <span class='hs-keyword'>of</span>
<a name="line-526"></a>            <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-527"></a>                <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-528"></a>                    <span class='hs-varid'>bm</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fullNodeMask</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>complement</span> <span class='hs-layout'>(</span><span class='hs-num'>1</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-529"></a>                <span class='hs-keyword'>in</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>bm</span> <span class='hs-varid'>ary'</span>
<a name="line-530"></a>            <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Full</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varid'>st'</span><span class='hs-layout'>)</span>
<a name="line-531"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-532"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-533"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hy</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>indexOf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyword'>of</span>
<a name="line-534"></a>            <span class='hs-conid'>Just</span> <span class='hs-varid'>i</span>
<a name="line-535"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>v</span> <span class='hs-varop'>==</span> <span class='hs-num'>2</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-536"></a>                    <span class='hs-keyword'>if</span> <span class='hs-varid'>i</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>
<a name="line-537"></a>                    <span class='hs-keyword'>then</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>v</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-538"></a>                    <span class='hs-keyword'>else</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>v</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-539"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>v</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span>
<a name="line-540"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>t</span>
<a name="line-541"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-542"></a><span class='hs-comment'>{-# INLINABLE delete #-}</span>
<a name="line-543"></a>
<a name="line-544"></a><a name="adjust"></a><span class='hs-comment'>-- | /O(log n)/ Adjust the value tied to a given key in this map only</span>
<a name="line-545"></a><span class='hs-comment'>-- if it is present. Otherwise, leave the map alone.</span>
<a name="line-546"></a><span class='hs-definition'>adjust</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-547"></a><span class='hs-definition'>adjust</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>m0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h0</span> <span class='hs-varid'>k0</span> <span class='hs-num'>0</span> <span class='hs-varid'>m0</span>
<a name="line-548"></a>  <span class='hs-keyword'>where</span>
<a name="line-549"></a>    <span class='hs-varid'>h0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hash</span> <span class='hs-varid'>k0</span>
<a name="line-550"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-551"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>hy</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>ky</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-552"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>hy</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>ky</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-553"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>          <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-554"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>
<a name="line-555"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-556"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>st</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-557"></a>                          <span class='hs-varid'>st'</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-558"></a>                          <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>st'</span>
<a name="line-559"></a>                      <span class='hs-keyword'>in</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary'</span>
<a name="line-560"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-561"></a>            <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span>
<a name="line-562"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-563"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>i</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span>
<a name="line-564"></a>            <span class='hs-varid'>st</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-565"></a>            <span class='hs-varid'>st'</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st</span>
<a name="line-566"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>update16</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>st'</span>
<a name="line-567"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-568"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>h</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>hy</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-569"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h</span> <span class='hs-varop'>==</span> <span class='hs-varid'>hy</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-570"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-571"></a><span class='hs-comment'>{-# INLINABLE adjust #-}</span>
<a name="line-572"></a>
<a name="line-573"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-574"></a><span class='hs-comment'>-- * Combine</span>
<a name="line-575"></a>
<a name="line-576"></a><a name="union"></a><span class='hs-comment'>-- | /O(n+m)/ The union of two maps. If a key occurs in both maps, the</span>
<a name="line-577"></a><span class='hs-comment'>-- mapping from the first will be the mapping in the result.</span>
<a name="line-578"></a><span class='hs-definition'>union</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-579"></a><span class='hs-definition'>union</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unionWith</span> <span class='hs-varid'>const</span>
<a name="line-580"></a><span class='hs-comment'>{-# INLINABLE union #-}</span>
<a name="line-581"></a>
<a name="line-582"></a><a name="unionWith"></a><span class='hs-comment'>-- | /O(n+m)/ The union of two maps.  If a key occurs in both maps,</span>
<a name="line-583"></a><span class='hs-comment'>-- the provided function (first argument) will be used to compute the</span>
<a name="line-584"></a><span class='hs-comment'>-- result.</span>
<a name="line-585"></a><span class='hs-definition'>unionWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-586"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-587"></a><span class='hs-definition'>unionWith</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-num'>0</span>
<a name="line-588"></a>  <span class='hs-keyword'>where</span>
<a name="line-589"></a>    <span class='hs-comment'>-- empty vs. anything</span>
<a name="line-590"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-keyword'>_</span> <span class='hs-varid'>t1</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t1</span>
<a name="line-591"></a>    <span class='hs-varid'>go</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>Empty</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t2</span>
<a name="line-592"></a>    <span class='hs-comment'>-- leaf vs. leaf</span>
<a name="line-593"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>l1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>v1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>l2</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-594"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>k1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>k2</span>
<a name="line-595"></a>                      <span class='hs-keyword'>then</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h1</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k1</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>v1</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-596"></a>                      <span class='hs-keyword'>else</span> <span class='hs-varid'>collision</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>l1</span> <span class='hs-varid'>l2</span>
<a name="line-597"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>goDifferentHash</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span>
<a name="line-598"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h1</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>v1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>ls2</span><span class='hs-layout'>)</span>
<a name="line-599"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h1</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrSnocWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k1</span> <span class='hs-varid'>v1</span> <span class='hs-varid'>ls2</span><span class='hs-layout'>)</span>
<a name="line-600"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>goDifferentHash</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span>
<a name="line-601"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>ls1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h2</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-602"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h1</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrSnocWith</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varid'>k2</span> <span class='hs-varid'>v2</span> <span class='hs-varid'>ls1</span><span class='hs-layout'>)</span>
<a name="line-603"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>goDifferentHash</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span>
<a name="line-604"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t1</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>ls1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>ls2</span><span class='hs-layout'>)</span>
<a name="line-605"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>h1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>h2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h1</span> <span class='hs-layout'>(</span><span class='hs-varid'>updateOrConcatWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ls1</span> <span class='hs-varid'>ls2</span><span class='hs-layout'>)</span>
<a name="line-606"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>goDifferentHash</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span>
<a name="line-607"></a>    <span class='hs-comment'>-- branch vs. branch</span>
<a name="line-608"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-609"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>b'</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>b2</span>
<a name="line-610"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unionArrayBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>ary2</span>
<a name="line-611"></a>        <span class='hs-keyword'>in</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-varid'>b'</span> <span class='hs-varid'>ary'</span>
<a name="line-612"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-613"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unionArrayBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>fullNodeMask</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>ary2</span>
<a name="line-614"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-615"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-616"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unionArrayBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>fullNodeMask</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>ary2</span>
<a name="line-617"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-618"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-619"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unionArrayBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>fullNodeMask</span> <span class='hs-varid'>fullNodeMask</span>
<a name="line-620"></a>                   <span class='hs-varid'>ary1</span> <span class='hs-varid'>ary2</span>
<a name="line-621"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-622"></a>    <span class='hs-comment'>-- leaf vs. branch</span>
<a name="line-623"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span>
<a name="line-624"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m2</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>i</span> <span class='hs-varid'>t2</span>
<a name="line-625"></a>                               <span class='hs-varid'>b'</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m2</span>
<a name="line-626"></a>                           <span class='hs-keyword'>in</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-varid'>b'</span> <span class='hs-varid'>ary'</span>
<a name="line-627"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>      <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>updateWith'</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>st1</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-628"></a>                                   <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st1</span> <span class='hs-varid'>t2</span>
<a name="line-629"></a>                           <span class='hs-keyword'>in</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>ary'</span>
<a name="line-630"></a>        <span class='hs-keyword'>where</span>
<a name="line-631"></a>          <span class='hs-varid'>h2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leafHashCode</span> <span class='hs-varid'>t2</span>
<a name="line-632"></a>          <span class='hs-varid'>m2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>s</span>
<a name="line-633"></a>          <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>m2</span>
<a name="line-634"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t1</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span>
<a name="line-635"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b2</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m1</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>t1</span>
<a name="line-636"></a>                               <span class='hs-varid'>b'</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b2</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m1</span>
<a name="line-637"></a>                           <span class='hs-keyword'>in</span> <span class='hs-varid'>bitmapIndexedOrFull</span> <span class='hs-varid'>b'</span> <span class='hs-varid'>ary'</span>
<a name="line-638"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>      <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>updateWith'</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>st2</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-639"></a>                                   <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>st2</span>
<a name="line-640"></a>                           <span class='hs-keyword'>in</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary'</span>
<a name="line-641"></a>      <span class='hs-keyword'>where</span>
<a name="line-642"></a>        <span class='hs-varid'>h1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leafHashCode</span> <span class='hs-varid'>t1</span>
<a name="line-643"></a>        <span class='hs-varid'>m1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>s</span>
<a name="line-644"></a>        <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sparseIndex</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>m1</span>
<a name="line-645"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-varid'>t2</span> <span class='hs-keyglyph'>=</span>
<a name="line-646"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>h2</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leafHashCode</span> <span class='hs-varid'>t2</span>
<a name="line-647"></a>            <span class='hs-varid'>i</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>s</span>
<a name="line-648"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>update16With'</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>st1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>st1</span> <span class='hs-varid'>t2</span>
<a name="line-649"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-650"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t1</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-651"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>h1</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>leafHashCode</span> <span class='hs-varid'>t1</span>
<a name="line-652"></a>            <span class='hs-varid'>i</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>index</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>s</span>
<a name="line-653"></a>            <span class='hs-varid'>ary'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>update16With'</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>st2</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>st2</span>
<a name="line-654"></a>        <span class='hs-keyword'>in</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary'</span>
<a name="line-655"></a>
<a name="line-656"></a>    <span class='hs-varid'>leafHashCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>h</span>
<a name="line-657"></a>    <span class='hs-varid'>leafHashCode</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>h</span>
<a name="line-658"></a>    <span class='hs-varid'>leafHashCode</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"leafHashCode"</span>
<a name="line-659"></a>
<a name="line-660"></a>    <span class='hs-varid'>goDifferentHash</span> <span class='hs-varid'>s</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span>
<a name="line-661"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>m1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>m2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>m1</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-varop'>+</span><span class='hs-varid'>bitsPerSubkey</span><span class='hs-layout'>)</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span>
<a name="line-662"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>m1</span> <span class='hs-varop'>&lt;</span>  <span class='hs-varid'>m2</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>m1</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>pair</span> <span class='hs-varid'>t1</span> <span class='hs-varid'>t2</span><span class='hs-layout'>)</span>
<a name="line-663"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-layout'>(</span><span class='hs-varid'>m1</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>m2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>pair</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>t1</span><span class='hs-layout'>)</span>
<a name="line-664"></a>      <span class='hs-keyword'>where</span>
<a name="line-665"></a>        <span class='hs-varid'>m1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h1</span> <span class='hs-varid'>s</span>
<a name="line-666"></a>        <span class='hs-varid'>m2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mask</span> <span class='hs-varid'>h2</span> <span class='hs-varid'>s</span>
<a name="line-667"></a><span class='hs-comment'>{-# INLINE unionWith #-}</span>
<a name="line-668"></a>
<a name="line-669"></a><a name="unionArrayBy"></a><span class='hs-comment'>-- | Strict in the result of @f@.</span>
<a name="line-670"></a><span class='hs-definition'>unionArrayBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>a</span>
<a name="line-671"></a>             <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>a</span>
<a name="line-672"></a><span class='hs-definition'>unionArrayBy</span> <span class='hs-varid'>f</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>ary2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>run</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-673"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>b'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>b2</span>
<a name="line-674"></a>    <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-layout'>(</span><span class='hs-varid'>popCount</span> <span class='hs-varid'>b'</span><span class='hs-layout'>)</span>
<a name="line-675"></a>    <span class='hs-comment'>-- iterate over nonzero bits of b1 .|. b2</span>
<a name="line-676"></a>    <span class='hs-comment'>-- it would be nice if we could shift m by more than 1 each time</span>
<a name="line-677"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>ba</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>b2</span>
<a name="line-678"></a>        <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>i1</span> <span class='hs-varop'>!</span><span class='hs-varid'>i2</span> <span class='hs-varop'>!</span><span class='hs-varid'>m</span>
<a name="line-679"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>m</span> <span class='hs-varop'>&gt;</span> <span class='hs-varid'>b'</span>        <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-680"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b'</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>i</span> <span class='hs-varid'>i1</span> <span class='hs-varid'>i2</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-681"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ba</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>/=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-682"></a>                <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>i1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i2</span><span class='hs-layout'>)</span>
<a name="line-683"></a>                <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i1</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i2</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-684"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>m</span> <span class='hs-varop'>/=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-685"></a>                <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>i1</span>
<a name="line-686"></a>                <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i1</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i2</span>  <span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-687"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>     <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-688"></a>                <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i2</span>
<a name="line-689"></a>                <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i1</span>  <span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i2</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-690"></a>    <span class='hs-varid'>go</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>b'</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>negate</span> <span class='hs-varid'>b'</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- XXX: b' must be non-zero</span>
<a name="line-691"></a>    <span class='hs-varid'>return</span> <span class='hs-varid'>mary</span>
<a name="line-692"></a>    <span class='hs-comment'>-- TODO: For the case where b1 .&amp;. b2 == b1, i.e. when one is a</span>
<a name="line-693"></a>    <span class='hs-comment'>-- subset of the other, we could use a slightly simpler algorithm,</span>
<a name="line-694"></a>    <span class='hs-comment'>-- where we copy one array, and then update.</span>
<a name="line-695"></a><span class='hs-comment'>{-# INLINE unionArrayBy #-}</span>
<a name="line-696"></a>
<a name="line-697"></a><span class='hs-comment'>-- TODO: Figure out the time complexity of 'unions'.</span>
<a name="line-698"></a>
<a name="line-699"></a><a name="unions"></a><span class='hs-comment'>-- | Construct a set containing all elements from a list of sets.</span>
<a name="line-700"></a><span class='hs-definition'>unions</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-701"></a><span class='hs-definition'>unions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-varid'>union</span> <span class='hs-varid'>empty</span>
<a name="line-702"></a><span class='hs-comment'>{-# INLINE unions #-}</span>
<a name="line-703"></a>
<a name="line-704"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-705"></a><span class='hs-comment'>-- * Transformations</span>
<a name="line-706"></a>
<a name="line-707"></a><a name="mapWithKey"></a><span class='hs-comment'>-- | /O(n)/ Transform this map by applying a function to every value.</span>
<a name="line-708"></a><span class='hs-definition'>mapWithKey</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v2</span>
<a name="line-709"></a><span class='hs-definition'>mapWithKey</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span>
<a name="line-710"></a>  <span class='hs-keyword'>where</span>
<a name="line-711"></a>    <span class='hs-varid'>go</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-712"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-varop'>$</span> <span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-713"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varop'>$</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>map'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>ary</span>
<a name="line-714"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Full</span> <span class='hs-varop'>$</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>map'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>ary</span>
<a name="line-715"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varop'>$</span>
<a name="line-716"></a>                           <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>map'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary</span>
<a name="line-717"></a><span class='hs-comment'>{-# INLINE mapWithKey #-}</span>
<a name="line-718"></a>
<a name="line-719"></a><a name="map"></a><span class='hs-comment'>-- | /O(n)/ Transform this map by applying a function to every value.</span>
<a name="line-720"></a><span class='hs-definition'>map</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>v1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v2</span>
<a name="line-721"></a><span class='hs-definition'>map</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-722"></a><span class='hs-comment'>{-# INLINE map #-}</span>
<a name="line-723"></a>
<a name="line-724"></a><span class='hs-comment'>-- TODO: We should be able to use mutation to create the new</span>
<a name="line-725"></a><span class='hs-comment'>-- 'HashMap'.</span>
<a name="line-726"></a>
<a name="line-727"></a><a name="traverseWithKey"></a><span class='hs-comment'>-- | /O(n)/ Transform this map by accumulating an Applicative result</span>
<a name="line-728"></a><span class='hs-comment'>-- from every value.</span>
<a name="line-729"></a><span class='hs-definition'>traverseWithKey</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Applicative</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>f</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v1</span>
<a name="line-730"></a>                <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span>
<a name="line-731"></a><span class='hs-definition'>traverseWithKey</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span>
<a name="line-732"></a>  <span class='hs-keyword'>where</span>
<a name="line-733"></a>    <span class='hs-varid'>go</span> <span class='hs-conid'>Empty</span>                 <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pure</span> <span class='hs-conid'>Empty</span>
<a name="line-734"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-varop'>.</span> <span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-735"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>traverse</span> <span class='hs-varid'>go</span> <span class='hs-varid'>ary</span>
<a name="line-736"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Full</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>traverse</span> <span class='hs-varid'>go</span> <span class='hs-varid'>ary</span>
<a name="line-737"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>     <span class='hs-keyglyph'>=</span>
<a name="line-738"></a>        <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>traverse</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary</span>
<a name="line-739"></a><span class='hs-comment'>{-# INLINE traverseWithKey #-}</span>
<a name="line-740"></a>
<a name="line-741"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-742"></a><span class='hs-comment'>-- * Difference and intersection</span>
<a name="line-743"></a>
<a name="line-744"></a><a name="difference"></a><span class='hs-comment'>-- | /O(n*log m)/ Difference of two maps. Return elements of the first map</span>
<a name="line-745"></a><span class='hs-comment'>-- not existing in the second.</span>
<a name="line-746"></a><span class='hs-definition'>difference</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-747"></a><span class='hs-definition'>difference</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldlWithKey'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>empty</span> <span class='hs-varid'>a</span>
<a name="line-748"></a>  <span class='hs-keyword'>where</span>
<a name="line-749"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>m</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>k</span> <span class='hs-varid'>b</span> <span class='hs-keyword'>of</span>
<a name="line-750"></a>                 <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>insert</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>m</span>
<a name="line-751"></a>                 <span class='hs-keyword'>_</span>       <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span>
<a name="line-752"></a><span class='hs-comment'>{-# INLINABLE difference #-}</span>
<a name="line-753"></a>
<a name="line-754"></a><a name="intersection"></a><span class='hs-comment'>-- | /O(n*log m)/ Intersection of two maps. Return elements of the first</span>
<a name="line-755"></a><span class='hs-comment'>-- map for keys existing in the second.</span>
<a name="line-756"></a><span class='hs-definition'>intersection</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-757"></a><span class='hs-definition'>intersection</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldlWithKey'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>empty</span> <span class='hs-varid'>a</span>
<a name="line-758"></a>  <span class='hs-keyword'>where</span>
<a name="line-759"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>m</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>k</span> <span class='hs-varid'>b</span> <span class='hs-keyword'>of</span>
<a name="line-760"></a>                 <span class='hs-conid'>Just</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>insert</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>m</span>
<a name="line-761"></a>                 <span class='hs-keyword'>_</span>      <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span>
<a name="line-762"></a><span class='hs-comment'>{-# INLINABLE intersection #-}</span>
<a name="line-763"></a>
<a name="line-764"></a><a name="intersectionWith"></a><span class='hs-comment'>-- | /O(n+m)/ Intersection of two maps. If a key occurs in both maps</span>
<a name="line-765"></a><span class='hs-comment'>-- the provided function is used to combine the values from the two</span>
<a name="line-766"></a><span class='hs-comment'>-- maps.</span>
<a name="line-767"></a><span class='hs-definition'>intersectionWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v2</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v3</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v1</span>
<a name="line-768"></a>                 <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v2</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v3</span>
<a name="line-769"></a><span class='hs-definition'>intersectionWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldlWithKey'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>empty</span> <span class='hs-varid'>a</span>
<a name="line-770"></a>  <span class='hs-keyword'>where</span>
<a name="line-771"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>m</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>k</span> <span class='hs-varid'>b</span> <span class='hs-keyword'>of</span>
<a name="line-772"></a>                 <span class='hs-conid'>Just</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>insert</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>v</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span>
<a name="line-773"></a>                 <span class='hs-keyword'>_</span>      <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span>
<a name="line-774"></a><span class='hs-comment'>{-# INLINABLE intersectionWith #-}</span>
<a name="line-775"></a>
<a name="line-776"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-777"></a><span class='hs-comment'>-- * Folds</span>
<a name="line-778"></a>
<a name="line-779"></a><a name="foldl'"></a><span class='hs-comment'>-- | /O(n)/ Reduce this map by applying a binary operator to all</span>
<a name="line-780"></a><span class='hs-comment'>-- elements, using the given starting value (typically the</span>
<a name="line-781"></a><span class='hs-comment'>-- left-identity of the operator).  Each application of the operator</span>
<a name="line-782"></a><span class='hs-comment'>-- is evaluated before before using the result in the next</span>
<a name="line-783"></a><span class='hs-comment'>-- application.  This function is strict in the starting value.</span>
<a name="line-784"></a><span class='hs-definition'>foldl'</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span>
<a name="line-785"></a><span class='hs-definition'>foldl'</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldlWithKey'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>z</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>f</span> <span class='hs-varid'>z</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-786"></a><span class='hs-comment'>{-# INLINE foldl' #-}</span>
<a name="line-787"></a>
<a name="line-788"></a><a name="foldlWithKey'"></a><span class='hs-comment'>-- | /O(n)/ Reduce this map by applying a binary operator to all</span>
<a name="line-789"></a><span class='hs-comment'>-- elements, using the given starting value (typically the</span>
<a name="line-790"></a><span class='hs-comment'>-- left-identity of the operator).  Each application of the operator</span>
<a name="line-791"></a><span class='hs-comment'>-- is evaluated before before using the result in the next</span>
<a name="line-792"></a><span class='hs-comment'>-- application.  This function is strict in the starting value.</span>
<a name="line-793"></a><span class='hs-definition'>foldlWithKey'</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span>
<a name="line-794"></a><span class='hs-definition'>foldlWithKey'</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span>
<a name="line-795"></a>  <span class='hs-keyword'>where</span>
<a name="line-796"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>z</span> <span class='hs-conid'>Empty</span>                <span class='hs-keyglyph'>=</span> <span class='hs-varid'>z</span>
<a name="line-797"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>z</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-798"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-varid'>ary</span>
<a name="line-799"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-varid'>ary</span>
<a name="line-800"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>     <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>z'</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>f</span> <span class='hs-varid'>z'</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span> <span class='hs-varid'>ary</span>
<a name="line-801"></a><span class='hs-comment'>{-# INLINE foldlWithKey' #-}</span>
<a name="line-802"></a>
<a name="line-803"></a><a name="foldr"></a><span class='hs-comment'>-- | /O(n)/ Reduce this map by applying a binary operator to all</span>
<a name="line-804"></a><span class='hs-comment'>-- elements, using the given starting value (typically the</span>
<a name="line-805"></a><span class='hs-comment'>-- right-identity of the operator).</span>
<a name="line-806"></a><span class='hs-definition'>foldr</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span>
<a name="line-807"></a><span class='hs-definition'>foldr</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldrWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-808"></a><span class='hs-comment'>{-# INLINE foldr #-}</span>
<a name="line-809"></a>
<a name="line-810"></a><a name="foldrWithKey"></a><span class='hs-comment'>-- | /O(n)/ Reduce this map by applying a binary operator to all</span>
<a name="line-811"></a><span class='hs-comment'>-- elements, using the given starting value (typically the</span>
<a name="line-812"></a><span class='hs-comment'>-- right-identity of the operator).</span>
<a name="line-813"></a><span class='hs-definition'>foldrWithKey</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span>
<a name="line-814"></a><span class='hs-definition'>foldrWithKey</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span>
<a name="line-815"></a>  <span class='hs-keyword'>where</span>
<a name="line-816"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-conid'>Empty</span>                 <span class='hs-keyglyph'>=</span> <span class='hs-varid'>z</span>
<a name="line-817"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>z</span>
<a name="line-818"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>go</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span> <span class='hs-varid'>ary</span>
<a name="line-819"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>go</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span> <span class='hs-varid'>ary</span>
<a name="line-820"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>z</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span>     <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-varid'>z'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>z'</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span> <span class='hs-varid'>ary</span>
<a name="line-821"></a><span class='hs-comment'>{-# INLINE foldrWithKey #-}</span>
<a name="line-822"></a>
<a name="line-823"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-824"></a><span class='hs-comment'>-- * Filter</span>
<a name="line-825"></a>
<a name="line-826"></a><a name="trim"></a><span class='hs-comment'>-- | Create a new array of the @n@ first elements of @mary@.</span>
<a name="line-827"></a><span class='hs-definition'>trim</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>MArray</span> <span class='hs-varid'>s</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-828"></a><span class='hs-definition'>trim</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-829"></a>    <span class='hs-varid'>mary2</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-varid'>n</span>
<a name="line-830"></a>    <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>copyM</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span> <span class='hs-varid'>mary2</span> <span class='hs-num'>0</span> <span class='hs-varid'>n</span>
<a name="line-831"></a>    <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeFreeze</span> <span class='hs-varid'>mary2</span>
<a name="line-832"></a><span class='hs-comment'>{-# INLINE trim #-}</span>
<a name="line-833"></a>
<a name="line-834"></a><a name="filterWithKey"></a><span class='hs-comment'>-- | /O(n)/ Filter this map by retaining only elements satisfying a</span>
<a name="line-835"></a><span class='hs-comment'>-- predicate.</span>
<a name="line-836"></a><span class='hs-definition'>filterWithKey</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyword'>forall</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-837"></a><span class='hs-definition'>filterWithKey</span> <span class='hs-varid'>pred</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span>
<a name="line-838"></a>  <span class='hs-keyword'>where</span>
<a name="line-839"></a>    <span class='hs-varid'>go</span> <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-840"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-841"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pred</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-842"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Empty</span>
<a name="line-843"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filterA</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>b</span>
<a name="line-844"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Full</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filterA</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>fullNodeMask</span>
<a name="line-845"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>ary</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filterC</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>h</span>
<a name="line-846"></a>
<a name="line-847"></a>    <span class='hs-varid'>filterA</span> <span class='hs-varid'>ary0</span> <span class='hs-varid'>b0</span> <span class='hs-keyglyph'>=</span>
<a name="line-848"></a>        <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary0</span>
<a name="line-849"></a>        <span class='hs-keyword'>in</span> <span class='hs-varid'>runST</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-850"></a>            <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-varid'>n</span>
<a name="line-851"></a>            <span class='hs-varid'>step</span> <span class='hs-varid'>ary0</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>b0</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-num'>1</span> <span class='hs-varid'>n</span>
<a name="line-852"></a>      <span class='hs-keyword'>where</span>
<a name="line-853"></a>        <span class='hs-varid'>step</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>MArray</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-854"></a>             <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-855"></a>             <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-856"></a>        <span class='hs-varid'>step</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary</span> <span class='hs-varop'>!</span><span class='hs-varid'>mary</span> <span class='hs-varop'>!</span><span class='hs-varid'>b</span> <span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>j</span> <span class='hs-varop'>!</span><span class='hs-varid'>bi</span> <span class='hs-varid'>n</span>
<a name="line-857"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>j</span> <span class='hs-keyword'>of</span>
<a name="line-858"></a>                <span class='hs-num'>0</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Empty</span>
<a name="line-859"></a>                <span class='hs-num'>1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-860"></a>                    <span class='hs-varid'>ch</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>read</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span>
<a name="line-861"></a>                    <span class='hs-keyword'>case</span> <span class='hs-varid'>ch</span> <span class='hs-keyword'>of</span>
<a name="line-862"></a>                      <span class='hs-varid'>t</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isLeafOrCollision</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varid'>t</span>
<a name="line-863"></a>                      <span class='hs-keyword'>_</span>                       <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>trim</span> <span class='hs-varid'>mary</span> <span class='hs-num'>1</span>
<a name="line-864"></a>                <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-865"></a>                    <span class='hs-varid'>ary2</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>trim</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>j</span>
<a name="line-866"></a>                    <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>j</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxChildren</span>
<a name="line-867"></a>                              <span class='hs-keyword'>then</span> <span class='hs-conid'>Full</span> <span class='hs-varid'>ary2</span>
<a name="line-868"></a>                              <span class='hs-keyword'>else</span> <span class='hs-conid'>BitmapIndexed</span> <span class='hs-varid'>b</span> <span class='hs-varid'>ary2</span>
<a name="line-869"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>bi</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>b</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>step</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>b</span> <span class='hs-varid'>i</span> <span class='hs-varid'>j</span> <span class='hs-layout'>(</span><span class='hs-varid'>bi</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-870"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-871"></a>                <span class='hs-conid'>Empty</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>step</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>mary</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>complement</span> <span class='hs-varid'>bi</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>j</span>
<a name="line-872"></a>                         <span class='hs-layout'>(</span><span class='hs-varid'>bi</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-873"></a>                <span class='hs-varid'>t</span>     <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>j</span> <span class='hs-varid'>t</span>
<a name="line-874"></a>                            <span class='hs-varid'>step</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>b</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>j</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>bi</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-875"></a>
<a name="line-876"></a>    <span class='hs-varid'>filterC</span> <span class='hs-varid'>ary0</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span>
<a name="line-877"></a>        <span class='hs-keyword'>let</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary0</span>
<a name="line-878"></a>        <span class='hs-keyword'>in</span> <span class='hs-varid'>runST</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-879"></a>            <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-varid'>n</span>
<a name="line-880"></a>            <span class='hs-varid'>step</span> <span class='hs-varid'>ary0</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-varid'>n</span>
<a name="line-881"></a>      <span class='hs-keyword'>where</span>
<a name="line-882"></a>        <span class='hs-varid'>step</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>MArray</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-883"></a>             <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-884"></a>             <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-885"></a>        <span class='hs-varid'>step</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary</span> <span class='hs-varop'>!</span><span class='hs-varid'>mary</span> <span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>j</span> <span class='hs-varid'>n</span>
<a name="line-886"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n</span>    <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>j</span> <span class='hs-keyword'>of</span>
<a name="line-887"></a>                <span class='hs-num'>0</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Empty</span>
<a name="line-888"></a>                <span class='hs-num'>1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>read</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span>
<a name="line-889"></a>                        <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Leaf</span> <span class='hs-varid'>h</span> <span class='hs-varid'>l</span>
<a name="line-890"></a>                <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>==</span> <span class='hs-varid'>j</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ary2</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeFreeze</span> <span class='hs-varid'>mary</span>
<a name="line-891"></a>                                 <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>ary2</span>
<a name="line-892"></a>                  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ary2</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>trim</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>j</span>
<a name="line-893"></a>                                    <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>Collision</span> <span class='hs-varid'>h</span> <span class='hs-varid'>ary2</span>
<a name="line-894"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>pred</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>j</span> <span class='hs-varid'>el</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>step</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>mary</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>j</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-895"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>step</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>mary</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>j</span> <span class='hs-varid'>n</span>
<a name="line-896"></a>          <span class='hs-keyword'>where</span> <span class='hs-varid'>el</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span>
<a name="line-897"></a><span class='hs-comment'>{-# INLINE filterWithKey #-}</span>
<a name="line-898"></a>
<a name="line-899"></a><a name="filter"></a><span class='hs-comment'>-- | /O(n)/ Filter this map by retaining only elements which values</span>
<a name="line-900"></a><span class='hs-comment'>-- satisfy a predicate.</span>
<a name="line-901"></a><span class='hs-definition'>filter</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-902"></a><span class='hs-definition'>filter</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filterWithKey</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>p</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-903"></a><span class='hs-comment'>{-# INLINE filter #-}</span>
<a name="line-904"></a>
<a name="line-905"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-906"></a><span class='hs-comment'>-- * Conversions</span>
<a name="line-907"></a>
<a name="line-908"></a><span class='hs-comment'>-- TODO: Improve fusion rules by modelled them after the Prelude ones</span>
<a name="line-909"></a><span class='hs-comment'>-- on lists.</span>
<a name="line-910"></a>
<a name="line-911"></a><a name="keys"></a><span class='hs-comment'>-- | /O(n)/ Return a list of this map's keys.  The list is produced</span>
<a name="line-912"></a><span class='hs-comment'>-- lazily.</span>
<a name="line-913"></a><span class='hs-definition'>keys</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>k</span><span class='hs-keyglyph'>]</span>
<a name="line-914"></a><span class='hs-definition'>keys</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toList</span>
<a name="line-915"></a><span class='hs-comment'>{-# INLINE keys #-}</span>
<a name="line-916"></a>
<a name="line-917"></a><a name="elems"></a><span class='hs-comment'>-- | /O(n)/ Return a list of this map's values.  The list is produced</span>
<a name="line-918"></a><span class='hs-comment'>-- lazily.</span>
<a name="line-919"></a><span class='hs-definition'>elems</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>v</span><span class='hs-keyglyph'>]</span>
<a name="line-920"></a><span class='hs-definition'>elems</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toList</span>
<a name="line-921"></a><span class='hs-comment'>{-# INLINE elems #-}</span>
<a name="line-922"></a>
<a name="line-923"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-924"></a><span class='hs-comment'>-- ** Lists</span>
<a name="line-925"></a>
<a name="line-926"></a><a name="toList"></a><span class='hs-comment'>-- | /O(n)/ Return a list of this map's elements.  The list is</span>
<a name="line-927"></a><span class='hs-comment'>-- produced lazily.</span>
<a name="line-928"></a><span class='hs-definition'>toList</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-929"></a><span class='hs-definition'>toList</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>build</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>c</span> <span class='hs-varid'>z</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>foldrWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>curry</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varid'>z</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-930"></a><span class='hs-comment'>{-# INLINE toList #-}</span>
<a name="line-931"></a>
<a name="line-932"></a><a name="fromList"></a><span class='hs-comment'>-- | /O(n)/ Construct a map with the supplied mappings.  If the list</span>
<a name="line-933"></a><span class='hs-comment'>-- contains duplicate mappings, the later mappings take precedence.</span>
<a name="line-934"></a><span class='hs-definition'>fromList</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-935"></a><span class='hs-definition'>fromList</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>unsafeInsert</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>empty</span>
<a name="line-936"></a><span class='hs-comment'>{-# INLINABLE fromList #-}</span>
<a name="line-937"></a>
<a name="line-938"></a><a name="fromListWith"></a><span class='hs-comment'>-- | /O(n*log n)/ Construct a map from a list of elements.  Uses</span>
<a name="line-939"></a><span class='hs-comment'>-- the provided function to merge duplicate entries.</span>
<a name="line-940"></a><span class='hs-definition'>fromListWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span>
<a name="line-941"></a><span class='hs-definition'>fromListWith</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>unsafeInsertWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-varid'>empty</span>
<a name="line-942"></a><span class='hs-comment'>{-# INLINE fromListWith #-}</span>
<a name="line-943"></a>
<a name="line-944"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-945"></a><span class='hs-comment'>-- Array operations</span>
<a name="line-946"></a>
<a name="line-947"></a><a name="lookupInArray"></a><span class='hs-comment'>-- | /O(n)/ Lookup the value associated with the given key in this</span>
<a name="line-948"></a><span class='hs-comment'>-- array.  Returns 'Nothing' if the key wasn't found.</span>
<a name="line-949"></a><span class='hs-definition'>lookupInArray</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>v</span>
<a name="line-950"></a><span class='hs-definition'>lookupInArray</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>ary0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>ary0</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary0</span><span class='hs-layout'>)</span>
<a name="line-951"></a>  <span class='hs-keyword'>where</span>
<a name="line-952"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary</span> <span class='hs-varop'>!</span><span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span>
<a name="line-953"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n</span>    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-954"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>of</span>
<a name="line-955"></a>            <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>kx</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-956"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-varid'>k</span> <span class='hs-varop'>==</span> <span class='hs-varid'>kx</span>   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>v</span>
<a name="line-957"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k</span> <span class='hs-varid'>ary</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-958"></a><span class='hs-comment'>{-# INLINABLE lookupInArray #-}</span>
<a name="line-959"></a>
<a name="line-960"></a><a name="indexOf"></a><span class='hs-comment'>-- | /O(n)/ Lookup the value associated with the given key in this</span>
<a name="line-961"></a><span class='hs-comment'>-- array.  Returns 'Nothing' if the key wasn't found.</span>
<a name="line-962"></a><span class='hs-definition'>indexOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Int</span>
<a name="line-963"></a><span class='hs-definition'>indexOf</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>ary0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>ary0</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary0</span><span class='hs-layout'>)</span>
<a name="line-964"></a>  <span class='hs-keyword'>where</span>
<a name="line-965"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary</span> <span class='hs-varop'>!</span><span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span>
<a name="line-966"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n</span>    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-967"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>of</span>
<a name="line-968"></a>            <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>kx</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span>
<a name="line-969"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-varid'>k</span> <span class='hs-varop'>==</span> <span class='hs-varid'>kx</span>   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>i</span>
<a name="line-970"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k</span> <span class='hs-varid'>ary</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-971"></a><span class='hs-comment'>{-# INLINABLE indexOf #-}</span>
<a name="line-972"></a>
<a name="line-973"></a><a name="updateWith"></a><span class='hs-definition'>updateWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-974"></a><span class='hs-definition'>updateWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>ary0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>ary0</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary0</span><span class='hs-layout'>)</span>
<a name="line-975"></a>  <span class='hs-keyword'>where</span>
<a name="line-976"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary</span> <span class='hs-varop'>!</span><span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span>
<a name="line-977"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ary</span>
<a name="line-978"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>of</span>
<a name="line-979"></a>            <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>kx</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>k</span> <span class='hs-varop'>==</span> <span class='hs-varid'>kx</span>   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-980"></a>                     <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k</span> <span class='hs-varid'>ary</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-981"></a><span class='hs-comment'>{-# INLINABLE updateWith #-}</span>
<a name="line-982"></a>
<a name="line-983"></a><a name="updateOrSnocWith"></a><span class='hs-definition'>updateOrSnocWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-984"></a>                 <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-985"></a><span class='hs-definition'>updateOrSnocWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-varid'>ary0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k0</span> <span class='hs-varid'>v0</span> <span class='hs-varid'>ary0</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary0</span><span class='hs-layout'>)</span>
<a name="line-986"></a>  <span class='hs-keyword'>where</span>
<a name="line-987"></a>    <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varop'>!</span><span class='hs-varid'>ary</span> <span class='hs-varop'>!</span><span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span>
<a name="line-988"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>run</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-989"></a>            <span class='hs-comment'>-- Not found, append to the end.</span>
<a name="line-990"></a>            <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-991"></a>            <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>copy</span> <span class='hs-varid'>ary</span> <span class='hs-num'>0</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span> <span class='hs-varid'>n</span>
<a name="line-992"></a>            <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-993"></a>            <span class='hs-varid'>return</span> <span class='hs-varid'>mary</span>
<a name="line-994"></a>        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-keyword'>of</span>
<a name="line-995"></a>            <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>kx</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>k</span> <span class='hs-varop'>==</span> <span class='hs-varid'>kx</span>   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>update</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>i</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>v</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-996"></a>                     <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>go</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-varid'>ary</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-997"></a><span class='hs-comment'>{-# INLINABLE updateOrSnocWith #-}</span>
<a name="line-998"></a>
<a name="line-999"></a><a name="updateOrConcatWith"></a><span class='hs-definition'>updateOrConcatWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-layout'>(</span><span class='hs-conid'>Leaf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-1000"></a><span class='hs-definition'>updateOrConcatWith</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>ary2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>run</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-1001"></a>    <span class='hs-comment'>-- first: look up the position of each element of ary2 in ary1</span>
<a name="line-1002"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>indices</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>indexOf</span> <span class='hs-varid'>k</span> <span class='hs-varid'>ary1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ary2</span>
<a name="line-1003"></a>    <span class='hs-comment'>-- that tells us how large the overlap is:</span>
<a name="line-1004"></a>    <span class='hs-comment'>-- count number of Nothing constructors</span>
<a name="line-1005"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>nOnly2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-varid'>indices</span>
<a name="line-1006"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>n1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary1</span>
<a name="line-1007"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>n2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>ary2</span>
<a name="line-1008"></a>    <span class='hs-comment'>-- copy over all elements from ary1</span>
<a name="line-1009"></a>    <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-layout'>(</span><span class='hs-varid'>n1</span> <span class='hs-varop'>+</span> <span class='hs-varid'>nOnly2</span><span class='hs-layout'>)</span>
<a name="line-1010"></a>    <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>copy</span> <span class='hs-varid'>ary1</span> <span class='hs-num'>0</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span> <span class='hs-varid'>n1</span>
<a name="line-1011"></a>    <span class='hs-comment'>-- append or update all elements from ary2</span>
<a name="line-1012"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>iEnd</span> <span class='hs-varop'>!</span><span class='hs-varid'>i2</span>
<a name="line-1013"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i2</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>n2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-1014"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>indices</span> <span class='hs-varid'>i2</span> <span class='hs-keyword'>of</span>
<a name="line-1015"></a>               <span class='hs-conid'>Just</span> <span class='hs-varid'>i1</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- key occurs in both arrays, store combination in position i1</span>
<a name="line-1016"></a>                             <span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v1</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary1</span> <span class='hs-varid'>i1</span>
<a name="line-1017"></a>                             <span class='hs-conid'>L</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>v2</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i2</span>
<a name="line-1018"></a>                             <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>i1</span> <span class='hs-layout'>(</span><span class='hs-conid'>L</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>v1</span> <span class='hs-varid'>v2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1019"></a>                             <span class='hs-varid'>go</span> <span class='hs-varid'>iEnd</span> <span class='hs-layout'>(</span><span class='hs-varid'>i2</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-1020"></a>               <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span> <span class='hs-comment'>-- key is only in ary2, append to end</span>
<a name="line-1021"></a>                             <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>iEnd</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary2</span> <span class='hs-varid'>i2</span>
<a name="line-1022"></a>                             <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>iEnd</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i2</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-1023"></a>    <span class='hs-varid'>go</span> <span class='hs-varid'>n1</span> <span class='hs-num'>0</span>
<a name="line-1024"></a>    <span class='hs-varid'>return</span> <span class='hs-varid'>mary</span>
<a name="line-1025"></a><span class='hs-comment'>{-# INLINABLE updateOrConcatWith #-}</span>
<a name="line-1026"></a>
<a name="line-1027"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-1028"></a><span class='hs-comment'>-- Manually unrolled loops</span>
<a name="line-1029"></a>
<a name="line-1030"></a><a name="update16"></a><span class='hs-comment'>-- | /O(n)/ Update the element at the given position in this array.</span>
<a name="line-1031"></a><span class='hs-definition'>update16</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span>
<a name="line-1032"></a><span class='hs-definition'>update16</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runST</span> <span class='hs-layout'>(</span><span class='hs-varid'>update16M</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-1033"></a><span class='hs-comment'>{-# INLINE update16 #-}</span>
<a name="line-1034"></a>
<a name="line-1035"></a><a name="update16M"></a><span class='hs-comment'>-- | /O(n)/ Update the element at the given position in this array.</span>
<a name="line-1036"></a><span class='hs-definition'>update16M</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-1037"></a><span class='hs-definition'>update16M</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1038"></a>    <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>clone16</span> <span class='hs-varid'>ary</span>
<a name="line-1039"></a>    <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>b</span>
<a name="line-1040"></a>    <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeFreeze</span> <span class='hs-varid'>mary</span>
<a name="line-1041"></a><span class='hs-comment'>{-# INLINE update16M #-}</span>
<a name="line-1042"></a>
<a name="line-1043"></a><a name="update16With'"></a><span class='hs-comment'>-- | /O(n)/ Update the element at the given position in this array, by applying a function to it.</span>
<a name="line-1044"></a><span class='hs-definition'>update16With'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span>
<a name="line-1045"></a><span class='hs-definition'>update16With'</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>update16</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>idx</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>ary</span> <span class='hs-varid'>idx</span><span class='hs-layout'>)</span>
<a name="line-1046"></a><span class='hs-comment'>{-# INLINE update16With' #-}</span>
<a name="line-1047"></a>
<a name="line-1048"></a><a name="clone16"></a><span class='hs-comment'>-- | Unsafely clone an array of 16 elements.  The length of the input</span>
<a name="line-1049"></a><span class='hs-comment'>-- array is not checked.</span>
<a name="line-1050"></a><span class='hs-definition'>clone16</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ST</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>MArray</span> <span class='hs-varid'>s</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-1051"></a><span class='hs-definition'>clone16</span> <span class='hs-varid'>ary</span> <span class='hs-keyglyph'>=</span>
<a name="line-1052"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 702</span>
<a name="line-1053"></a>    <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>thaw</span> <span class='hs-varid'>ary</span> <span class='hs-num'>0</span> <span class='hs-num'>16</span>
<a name="line-1054"></a><span class='hs-cpp'>#else</span>
<a name="line-1055"></a>    <span class='hs-keyword'>do</span> <span class='hs-varid'>mary</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new_</span> <span class='hs-num'>16</span>
<a name="line-1056"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>0</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>0</span>
<a name="line-1057"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>1</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>1</span>
<a name="line-1058"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>2</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>2</span>
<a name="line-1059"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>3</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>3</span>
<a name="line-1060"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>4</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>4</span>
<a name="line-1061"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>5</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>5</span>
<a name="line-1062"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>6</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>6</span>
<a name="line-1063"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>7</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>7</span>
<a name="line-1064"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>8</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>8</span>
<a name="line-1065"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>9</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>9</span>
<a name="line-1066"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>10</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>10</span>
<a name="line-1067"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>11</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>11</span>
<a name="line-1068"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>12</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>12</span>
<a name="line-1069"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>13</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>13</span>
<a name="line-1070"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>14</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>14</span>
<a name="line-1071"></a>       <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>indexM</span> <span class='hs-varid'>ary</span> <span class='hs-num'>15</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>write</span> <span class='hs-varid'>mary</span> <span class='hs-num'>15</span>
<a name="line-1072"></a>       <span class='hs-varid'>return</span> <span class='hs-varid'>mary</span>
<a name="line-1073"></a><span class='hs-cpp'>#endif</span>
<a name="line-1074"></a>
<a name="line-1075"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-1076"></a><span class='hs-comment'>-- Bit twiddling</span>
<a name="line-1077"></a>
<a name="line-1078"></a><a name="bitsPerSubkey"></a><span class='hs-definition'>bitsPerSubkey</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-1079"></a><span class='hs-definition'>bitsPerSubkey</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>4</span>
<a name="line-1080"></a>
<a name="line-1081"></a><a name="maxChildren"></a><span class='hs-definition'>maxChildren</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-1082"></a><span class='hs-definition'>maxChildren</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span> <span class='hs-num'>1</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-varid'>bitsPerSubkey</span>
<a name="line-1083"></a>
<a name="line-1084"></a><a name="subkeyMask"></a><span class='hs-definition'>subkeyMask</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bitmap</span>
<a name="line-1085"></a><span class='hs-definition'>subkeyMask</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-varid'>bitsPerSubkey</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span>
<a name="line-1086"></a>
<a name="line-1087"></a><a name="sparseIndex"></a><span class='hs-definition'>sparseIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bitmap</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-1088"></a><span class='hs-definition'>sparseIndex</span> <span class='hs-varid'>b</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>popCount</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1089"></a>
<a name="line-1090"></a><a name="mask"></a><span class='hs-definition'>mask</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Shift</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bitmap</span>
<a name="line-1091"></a><span class='hs-definition'>mask</span> <span class='hs-varid'>w</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-varid'>index</span> <span class='hs-varid'>w</span> <span class='hs-varid'>s</span>
<a name="line-1092"></a><span class='hs-comment'>{-# INLINE mask #-}</span>
<a name="line-1093"></a>
<a name="line-1094"></a><a name="index"></a><span class='hs-comment'>-- | Mask out the 'bitsPerSubkey' bits used for indexing at this level</span>
<a name="line-1095"></a><span class='hs-comment'>-- of the tree.</span>
<a name="line-1096"></a><span class='hs-definition'>index</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Hash</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Shift</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-1097"></a><span class='hs-definition'>index</span> <span class='hs-varid'>w</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeShiftR</span> <span class='hs-varid'>w</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-varid'>subkeyMask</span>
<a name="line-1098"></a><span class='hs-comment'>{-# INLINE index #-}</span>
<a name="line-1099"></a>
<a name="line-1100"></a><a name="fullNodeMask"></a><span class='hs-comment'>-- | A bitmask with the 'bitsPerSubkey' least significant bits set.</span>
<a name="line-1101"></a><span class='hs-definition'>fullNodeMask</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bitmap</span>
<a name="line-1102"></a><span class='hs-definition'>fullNodeMask</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>complement</span> <span class='hs-layout'>(</span><span class='hs-varid'>complement</span> <span class='hs-num'>0</span> <span class='hs-varop'>`unsafeShiftL`</span> <span class='hs-varid'>maxChildren</span><span class='hs-layout'>)</span>
<a name="line-1103"></a><span class='hs-comment'>{-# INLINE fullNodeMask #-}</span>
<a name="line-1104"></a>
<a name="line-1105"></a><a name="ptrEq"></a><span class='hs-comment'>-- | Check if two the two arguments are the same value.  N.B. This</span>
<a name="line-1106"></a><span class='hs-comment'>-- function might give false negatives (due to GC moving objects.)</span>
<a name="line-1107"></a><span class='hs-definition'>ptrEq</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-1108"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &lt; 707</span>
<a name="line-1109"></a><span class='hs-definition'>ptrEq</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reallyUnsafePtrEquality</span><span class='hs-cpp'>#</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varop'>==#</span> <span class='hs-num'>1</span><span class='hs-cpp'>#</span>
<a name="line-1110"></a><span class='hs-cpp'>#else</span>
<a name="line-1111"></a><span class='hs-definition'>ptrEq</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isTrue</span><span class='hs-cpp'>#</span> <span class='hs-layout'>(</span><span class='hs-varid'>reallyUnsafePtrEquality</span><span class='hs-cpp'>#</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varop'>==#</span> <span class='hs-num'>1</span><span class='hs-cpp'>#</span><span class='hs-layout'>)</span>
<a name="line-1112"></a><span class='hs-cpp'>#endif</span>
<a name="line-1113"></a><span class='hs-comment'>{-# INLINE ptrEq #-}</span>
<a name="line-1114"></a>
<a name="line-1115"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 708</span>
<a name="line-1116"></a><a name="instance%20Exts.IsList%20(HashMap%20k%20v)"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-1117"></a><a name="instance%20Exts.IsList%20(HashMap%20k%20v)"></a><span class='hs-comment'>-- IsList instance</span>
<a name="line-1118"></a><a name="instance%20Exts.IsList%20(HashMap%20k%20v)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span> <span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hashable</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>IsList</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1119"></a>    <span class='hs-keyword'>type</span> <span class='hs-conid'>Item</span> <span class='hs-layout'>(</span><span class='hs-conid'>HashMap</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-1120"></a>    <span class='hs-varid'>fromList</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromList</span>
<a name="line-1121"></a>    <span class='hs-varid'>toList</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toList</span>
<a name="line-1122"></a><span class='hs-cpp'>#endif</span>
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