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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>src/Control/Lens/Internal/PrismTH.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-2"></a><span class='hs-cpp'>#ifdef TRUSTWORTHY</span>
<a name="line-3"></a><span class='hs-cpp'># if MIN_VERSION_template_haskell(2,12,0)</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE Safe #-}</span>
<a name="line-5"></a><span class='hs-cpp'># else</span>
<a name="line-6"></a><span class='hs-comment'>{-# LANGUAGE Trustworthy #-}</span>
<a name="line-7"></a><span class='hs-cpp'># endif</span>
<a name="line-8"></a><span class='hs-cpp'>#endif</span>
<a name="line-9"></a>
<a name="line-10"></a><span class='hs-cpp'>#ifndef MIN_VERSION_template_haskell</span>
<a name="line-11"></a><span class='hs-cpp'>#define MIN_VERSION_template_haskell(x,y,z) 1</span>
<a name="line-12"></a><span class='hs-cpp'>#endif</span>
<a name="line-13"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-14"></a><span class='hs-comment'>-- |</span>
<a name="line-15"></a><span class='hs-comment'>-- Module      :  Control.Lens.Internal.PrismTH</span>
<a name="line-16"></a><span class='hs-comment'>-- Copyright   :  (C) 2014-2016 Edward Kmett and Eric Mertens</span>
<a name="line-17"></a><span class='hs-comment'>-- License     :  BSD-style (see the file LICENSE)</span>
<a name="line-18"></a><span class='hs-comment'>-- Maintainer  :  Edward Kmett &lt;ekmett@gmail.com&gt;</span>
<a name="line-19"></a><span class='hs-comment'>-- Stability   :  experimental</span>
<a name="line-20"></a><span class='hs-comment'>-- Portability :  non-portable</span>
<a name="line-21"></a><span class='hs-comment'>--</span>
<a name="line-22"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>PrismTH</span>
<a name="line-25"></a>  <span class='hs-layout'>(</span> <span class='hs-varid'>makePrisms</span>
<a name="line-26"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>makeClassyPrisms</span>
<a name="line-27"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>makeDecPrisms</span>
<a name="line-28"></a>  <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-29"></a>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span><span class='hs-varop'>.</span><span class='hs-conid'>Fold</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span><span class='hs-varop'>.</span><span class='hs-conid'>Getter</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span><span class='hs-varop'>.</span><span class='hs-conid'>Setter</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>isUpper</span><span class='hs-layout'>)</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Traversable</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span><span class='hs-varop'>.</span><span class='hs-conid'>Datatype</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>D</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span>
<a name="line-44"></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'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-45"></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'>Set</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Set</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span>
<a name="line-47"></a>
<a name="line-48"></a><a name="makePrisms"></a><span class='hs-comment'>-- | Generate a 'Prism' for each constructor of a data type.</span>
<a name="line-49"></a><span class='hs-comment'>-- Isos generated when possible.</span>
<a name="line-50"></a><span class='hs-comment'>-- Reviews are created for constructors with existentially</span>
<a name="line-51"></a><span class='hs-comment'>-- quantified constructors and GADTs.</span>
<a name="line-52"></a><span class='hs-comment'>--</span>
<a name="line-53"></a><span class='hs-comment'>-- /e.g./</span>
<a name="line-54"></a><span class='hs-comment'>--</span>
<a name="line-55"></a><span class='hs-comment'>-- @</span>
<a name="line-56"></a><span class='hs-comment'>-- data FooBarBaz a</span>
<a name="line-57"></a><span class='hs-comment'>--   = Foo Int</span>
<a name="line-58"></a><span class='hs-comment'>--   | Bar a</span>
<a name="line-59"></a><span class='hs-comment'>--   | Baz Int Char</span>
<a name="line-60"></a><span class='hs-comment'>-- makePrisms ''FooBarBaz</span>
<a name="line-61"></a><span class='hs-comment'>-- @</span>
<a name="line-62"></a><span class='hs-comment'>--</span>
<a name="line-63"></a><span class='hs-comment'>-- will create</span>
<a name="line-64"></a><span class='hs-comment'>--</span>
<a name="line-65"></a><span class='hs-comment'>-- @</span>
<a name="line-66"></a><span class='hs-comment'>-- _Foo :: Prism' (FooBarBaz a) Int</span>
<a name="line-67"></a><span class='hs-comment'>-- _Bar :: Prism (FooBarBaz a) (FooBarBaz b) a b</span>
<a name="line-68"></a><span class='hs-comment'>-- _Baz :: Prism' (FooBarBaz a) (Int, Char)</span>
<a name="line-69"></a><span class='hs-comment'>-- @</span>
<a name="line-70"></a><span class='hs-definition'>makePrisms</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-comment'>{- ^ Type constructor name -}</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecsQ</span>
<a name="line-71"></a><span class='hs-definition'>makePrisms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makePrisms'</span> <span class='hs-conid'>True</span>
<a name="line-72"></a>
<a name="line-73"></a>
<a name="line-74"></a><a name="makeClassyPrisms"></a><span class='hs-comment'>-- | Generate a 'Prism' for each constructor of a data type</span>
<a name="line-75"></a><span class='hs-comment'>-- and combine them into a single class. No Isos are created.</span>
<a name="line-76"></a><span class='hs-comment'>-- Reviews are created for constructors with existentially</span>
<a name="line-77"></a><span class='hs-comment'>-- quantified constructors and GADTs.</span>
<a name="line-78"></a><span class='hs-comment'>--</span>
<a name="line-79"></a><span class='hs-comment'>-- /e.g./</span>
<a name="line-80"></a><span class='hs-comment'>--</span>
<a name="line-81"></a><span class='hs-comment'>-- @</span>
<a name="line-82"></a><span class='hs-comment'>-- data FooBarBaz a</span>
<a name="line-83"></a><span class='hs-comment'>--   = Foo Int</span>
<a name="line-84"></a><span class='hs-comment'>--   | Bar a</span>
<a name="line-85"></a><span class='hs-comment'>--   | Baz Int Char</span>
<a name="line-86"></a><span class='hs-comment'>-- makeClassyPrisms ''FooBarBaz</span>
<a name="line-87"></a><span class='hs-comment'>-- @</span>
<a name="line-88"></a><span class='hs-comment'>--</span>
<a name="line-89"></a><span class='hs-comment'>-- will create</span>
<a name="line-90"></a><span class='hs-comment'>--</span>
<a name="line-91"></a><span class='hs-comment'>-- @</span>
<a name="line-92"></a><span class='hs-comment'>-- class AsFooBarBaz s a | s -&gt; a where</span>
<a name="line-93"></a><span class='hs-comment'>--   _FooBarBaz :: Prism' s (FooBarBaz a)</span>
<a name="line-94"></a><span class='hs-comment'>--   _Foo :: Prism' s Int</span>
<a name="line-95"></a><span class='hs-comment'>--   _Bar :: Prism' s a</span>
<a name="line-96"></a><span class='hs-comment'>--   _Baz :: Prism' s (Int,Char)</span>
<a name="line-97"></a><span class='hs-comment'>--</span>
<a name="line-98"></a><span class='hs-comment'>--   _Foo = _FooBarBaz . _Foo</span>
<a name="line-99"></a><span class='hs-comment'>--   _Bar = _FooBarBaz . _Bar</span>
<a name="line-100"></a><span class='hs-comment'>--   _Baz = _FooBarBaz . _Baz</span>
<a name="line-101"></a><span class='hs-comment'>--</span>
<a name="line-102"></a><span class='hs-comment'>-- instance AsFooBarBaz (FooBarBaz a) a</span>
<a name="line-103"></a><span class='hs-comment'>-- @</span>
<a name="line-104"></a><span class='hs-comment'>--</span>
<a name="line-105"></a><span class='hs-comment'>-- Generate an "As" class of prisms. Names are selected by prefixing the constructor</span>
<a name="line-106"></a><span class='hs-comment'>-- name with an underscore.  Constructors with multiple fields will</span>
<a name="line-107"></a><span class='hs-comment'>-- construct Prisms to tuples of those fields.</span>
<a name="line-108"></a><span class='hs-definition'>makeClassyPrisms</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-comment'>{- ^ Type constructor name -}</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecsQ</span>
<a name="line-109"></a><span class='hs-definition'>makeClassyPrisms</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makePrisms'</span> <span class='hs-conid'>False</span>
<a name="line-110"></a>
<a name="line-111"></a>
<a name="line-112"></a><a name="makePrisms'"></a><span class='hs-comment'>-- | Main entry point into Prism generation for a given type constructor name.</span>
<a name="line-113"></a><span class='hs-definition'>makePrisms'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecsQ</span>
<a name="line-114"></a><span class='hs-definition'>makePrisms'</span> <span class='hs-varid'>normal</span> <span class='hs-varid'>typeName</span> <span class='hs-keyglyph'>=</span>
<a name="line-115"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>info</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>reifyDatatype</span> <span class='hs-varid'>typeName</span>
<a name="line-116"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>cls</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>normal</span>    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-117"></a>             <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>datatypeName</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span>
<a name="line-118"></a>         <span class='hs-varid'>cons</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>datatypeCons</span> <span class='hs-varid'>info</span>
<a name="line-119"></a>     <span class='hs-varid'>makeConsPrisms</span> <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>datatypeType</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>normalizeCon</span> <span class='hs-varid'>cons</span><span class='hs-layout'>)</span> <span class='hs-varid'>cls</span>
<a name="line-120"></a>
<a name="line-121"></a>
<a name="line-122"></a><a name="makeDecPrisms"></a><span class='hs-comment'>-- | Generate prisms for the given 'Dec'</span>
<a name="line-123"></a><span class='hs-definition'>makeDecPrisms</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>{- ^ generate top-level definitions -}</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Dec</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecsQ</span>
<a name="line-124"></a><span class='hs-definition'>makeDecPrisms</span> <span class='hs-varid'>normal</span> <span class='hs-varid'>dec</span> <span class='hs-keyglyph'>=</span>
<a name="line-125"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>info</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>normalizeDec</span> <span class='hs-varid'>dec</span>
<a name="line-126"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>cls</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>normal</span>    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-127"></a>             <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>datatypeName</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span>
<a name="line-128"></a>         <span class='hs-varid'>cons</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>datatypeCons</span> <span class='hs-varid'>info</span>
<a name="line-129"></a>     <span class='hs-varid'>makeConsPrisms</span> <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>datatypeType</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>normalizeCon</span> <span class='hs-varid'>cons</span><span class='hs-layout'>)</span> <span class='hs-varid'>cls</span>
<a name="line-130"></a>
<a name="line-131"></a>
<a name="line-132"></a><a name="makeConsPrisms"></a><span class='hs-comment'>-- | Generate prisms for the given type, normalized constructors, and</span>
<a name="line-133"></a><span class='hs-comment'>-- an optional name to be used for generating a prism class.</span>
<a name="line-134"></a><span class='hs-comment'>-- This function dispatches between Iso generation, normal top-level</span>
<a name="line-135"></a><span class='hs-comment'>-- prisms, and classy prisms.</span>
<a name="line-136"></a><span class='hs-definition'>makeConsPrisms</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecsQ</span>
<a name="line-137"></a>
<a name="line-138"></a><span class='hs-comment'>-- special case: single constructor, not classy -&gt; make iso</span>
<a name="line-139"></a><span class='hs-definition'>makeConsPrisms</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>con</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>NCon</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeConIso</span> <span class='hs-varid'>t</span> <span class='hs-varid'>con</span>
<a name="line-140"></a>
<a name="line-141"></a><span class='hs-comment'>-- top-level definitions</span>
<a name="line-142"></a><span class='hs-definition'>makeConsPrisms</span> <span class='hs-varid'>t</span> <span class='hs-varid'>cons</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span>
<a name="line-143"></a>  <span class='hs-varid'>fmap</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>$</span> <span class='hs-varid'>for</span> <span class='hs-varid'>cons</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>con</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-144"></a>    <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>conName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span>
<a name="line-145"></a>       <span class='hs-varid'>stab</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>computeOpticType</span> <span class='hs-varid'>t</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span>
<a name="line-146"></a>       <span class='hs-keyword'>let</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prismName</span> <span class='hs-varid'>conName</span>
<a name="line-147"></a>       <span class='hs-varid'>sequenceA</span>
<a name="line-148"></a>         <span class='hs-keyglyph'>[</span> <span class='hs-varid'>sigD</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-varid'>close</span> <span class='hs-layout'>(</span><span class='hs-varid'>stabToType</span> <span class='hs-varid'>stab</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-149"></a>         <span class='hs-layout'>,</span> <span class='hs-varid'>valD</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeConOpticExp</span> <span class='hs-varid'>stab</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-150"></a>         <span class='hs-keyglyph'>]</span>
<a name="line-151"></a>
<a name="line-152"></a>
<a name="line-153"></a><span class='hs-comment'>-- classy prism class and instance</span>
<a name="line-154"></a><span class='hs-definition'>makeConsPrisms</span> <span class='hs-varid'>t</span> <span class='hs-varid'>cons</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>typeName</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-155"></a>  <span class='hs-varid'>sequenceA</span>
<a name="line-156"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-varid'>makeClassyPrismClass</span> <span class='hs-varid'>t</span> <span class='hs-varid'>className</span> <span class='hs-varid'>methodName</span> <span class='hs-varid'>cons</span>
<a name="line-157"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>makeClassyPrismInstance</span> <span class='hs-varid'>t</span> <span class='hs-varid'>className</span> <span class='hs-varid'>methodName</span> <span class='hs-varid'>cons</span>
<a name="line-158"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-159"></a>  <span class='hs-keyword'>where</span>
<a name="line-160"></a>  <span class='hs-varid'>className</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkName</span> <span class='hs-layout'>(</span><span class='hs-str'>"As"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>nameBase</span> <span class='hs-varid'>typeName</span><span class='hs-layout'>)</span>
<a name="line-161"></a>  <span class='hs-varid'>methodName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prismName</span> <span class='hs-varid'>typeName</span>
<a name="line-162"></a>
<a name="line-163"></a>
<a name="line-164"></a><a name="OpticType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>OpticType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PrismType</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ReviewType</span>
<a name="line-165"></a><a name="Stab"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Stab</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stab</span> <span class='hs-conid'>Cxt</span> <span class='hs-conid'>OpticType</span> <span class='hs-conid'>Type</span> <span class='hs-conid'>Type</span> <span class='hs-conid'>Type</span> <span class='hs-conid'>Type</span>
<a name="line-166"></a>
<a name="line-167"></a><a name="simplifyStab"></a><span class='hs-definition'>simplifyStab</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Stab</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Stab</span>
<a name="line-168"></a><span class='hs-definition'>simplifyStab</span> <span class='hs-layout'>(</span><span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>ty</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>ty</span> <span class='hs-varid'>t</span> <span class='hs-varid'>t</span> <span class='hs-varid'>b</span> <span class='hs-varid'>b</span>
<a name="line-169"></a>  <span class='hs-comment'>-- simplification uses t and b because those types</span>
<a name="line-170"></a>  <span class='hs-comment'>-- are interesting in the Review case</span>
<a name="line-171"></a>
<a name="line-172"></a><a name="stabSimple"></a><span class='hs-definition'>stabSimple</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Stab</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-173"></a><span class='hs-definition'>stabSimple</span> <span class='hs-layout'>(</span><span class='hs-conid'>Stab</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-varop'>==</span> <span class='hs-varid'>t</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>b</span>
<a name="line-174"></a>
<a name="line-175"></a><a name="stabToType"></a><span class='hs-definition'>stabToType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Stab</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Type</span>
<a name="line-176"></a><span class='hs-definition'>stabToType</span> <span class='hs-varid'>stab</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>ty</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ForallT</span> <span class='hs-varid'>vs</span> <span class='hs-varid'>cx</span> <span class='hs-varop'>$</span>
<a name="line-177"></a>  <span class='hs-keyword'>case</span> <span class='hs-varid'>ty</span> <span class='hs-keyword'>of</span>
<a name="line-178"></a>    <span class='hs-conid'>PrismType</span>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>stabSimple</span> <span class='hs-varid'>stab</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>prism'TypeName</span>  <span class='hs-varop'>`conAppsT`</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-179"></a>               <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>       <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>prismTypeName</span>   <span class='hs-varop'>`conAppsT`</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-180"></a>    <span class='hs-conid'>ReviewType</span>                   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>reviewTypeName</span>  <span class='hs-varop'>`conAppsT`</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-181"></a>
<a name="line-182"></a>  <span class='hs-keyword'>where</span>
<a name="line-183"></a>  <span class='hs-varid'>vs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-conid'>PlainTV</span>
<a name="line-184"></a>     <span class='hs-varop'>$</span> <span class='hs-varid'>nub</span> <span class='hs-comment'>-- stable order</span>
<a name="line-185"></a>     <span class='hs-varop'>$</span> <span class='hs-varid'>toListOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>cx</span>
<a name="line-186"></a>
<a name="line-187"></a><a name="stabType"></a><span class='hs-definition'>stabType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Stab</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>OpticType</span>
<a name="line-188"></a><span class='hs-definition'>stabType</span> <span class='hs-layout'>(</span><span class='hs-conid'>Stab</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>o</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>o</span>
<a name="line-189"></a>
<a name="line-190"></a><a name="computeOpticType"></a><span class='hs-definition'>computeOpticType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Q</span> <span class='hs-conid'>Stab</span>
<a name="line-191"></a><span class='hs-definition'>computeOpticType</span> <span class='hs-varid'>t</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span>
<a name="line-192"></a>  <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>cons'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delete</span> <span class='hs-varid'>con</span> <span class='hs-varid'>cons</span>
<a name="line-193"></a>     <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-sel'>_nconVars</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span>
<a name="line-194"></a>         <span class='hs-keyword'>then</span> <span class='hs-varid'>computePrismType</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconCxt</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span> <span class='hs-varid'>cons'</span> <span class='hs-varid'>con</span>
<a name="line-195"></a>         <span class='hs-keyword'>else</span> <span class='hs-varid'>computeReviewType</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconCxt</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconTypes</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span>
<a name="line-196"></a>
<a name="line-197"></a>
<a name="line-198"></a><a name="computeReviewType"></a><span class='hs-definition'>computeReviewType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Cxt</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Type</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Q</span> <span class='hs-conid'>Stab</span>
<a name="line-199"></a><span class='hs-definition'>computeReviewType</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>tys</span> <span class='hs-keyglyph'>=</span>
<a name="line-200"></a>  <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s'</span>
<a name="line-201"></a>     <span class='hs-varid'>s</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>fmap</span> <span class='hs-conid'>VarT</span> <span class='hs-layout'>(</span><span class='hs-varid'>newName</span> <span class='hs-str'>"s"</span><span class='hs-layout'>)</span>
<a name="line-202"></a>     <span class='hs-varid'>a</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>fmap</span> <span class='hs-conid'>VarT</span> <span class='hs-layout'>(</span><span class='hs-varid'>newName</span> <span class='hs-str'>"a"</span><span class='hs-layout'>)</span>
<a name="line-203"></a>     <span class='hs-varid'>b</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>toTupleT</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>return</span> <span class='hs-varid'>tys</span><span class='hs-layout'>)</span>
<a name="line-204"></a>     <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-conid'>ReviewType</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-205"></a>
<a name="line-206"></a>
<a name="line-207"></a><a name="computePrismType"></a><span class='hs-comment'>-- | Compute the full type-changing Prism type given an outer type,</span>
<a name="line-208"></a><span class='hs-comment'>-- list of constructors, and target constructor name. Additionally</span>
<a name="line-209"></a><span class='hs-comment'>-- return 'True' if the resulting type is a "simple" prism.</span>
<a name="line-210"></a><span class='hs-definition'>computePrismType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Cxt</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Q</span> <span class='hs-conid'>Stab</span>
<a name="line-211"></a><span class='hs-definition'>computePrismType</span> <span class='hs-varid'>t</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span>
<a name="line-212"></a>  <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ts</span>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconTypes</span> <span class='hs-varid'>con</span>
<a name="line-213"></a>         <span class='hs-varid'>unbound</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>setOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>t</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.\\</span> <span class='hs-varid'>setOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>cons</span>
<a name="line-214"></a>     <span class='hs-varid'>sub</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>sequenceA</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>newName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>nameBase</span><span class='hs-layout'>)</span> <span class='hs-varid'>unbound</span><span class='hs-layout'>)</span>
<a name="line-215"></a>     <span class='hs-varid'>b</span>   <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>toTupleT</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>return</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-216"></a>     <span class='hs-varid'>a</span>   <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>toTupleT</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>substTypeVars</span> <span class='hs-varid'>sub</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-217"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>substTypeVars</span> <span class='hs-varid'>sub</span> <span class='hs-varid'>t</span>
<a name="line-218"></a>     <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-conid'>PrismType</span> <span class='hs-varid'>s</span> <span class='hs-varid'>t</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-219"></a>
<a name="line-220"></a>
<a name="line-221"></a><a name="computeIsoType"></a><span class='hs-definition'>computeIsoType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Type</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>TypeQ</span>
<a name="line-222"></a><span class='hs-definition'>computeIsoType</span> <span class='hs-varid'>t'</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>=</span>
<a name="line-223"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>sub</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>sequenceA</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>newName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>nameBase</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>setOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>t'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-224"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span>                    <span class='hs-varid'>t'</span>
<a name="line-225"></a>         <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>substTypeVars</span> <span class='hs-varid'>sub</span> <span class='hs-varid'>t'</span><span class='hs-layout'>)</span>
<a name="line-226"></a>         <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toTupleT</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>return</span>                    <span class='hs-varid'>fields</span><span class='hs-layout'>)</span>
<a name="line-227"></a>         <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toTupleT</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>substTypeVars</span> <span class='hs-varid'>sub</span> <span class='hs-varid'>fields</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-228"></a>
<a name="line-229"></a><span class='hs-cpp'>#ifndef HLINT</span>
<a name="line-230"></a>         <span class='hs-varid'>ty</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>sub</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appsT</span> <span class='hs-layout'>(</span><span class='hs-varid'>conT</span> <span class='hs-varid'>iso'TypeName</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-231"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appsT</span> <span class='hs-layout'>(</span><span class='hs-varid'>conT</span> <span class='hs-varid'>isoTypeName</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-232"></a><span class='hs-cpp'>#endif</span>
<a name="line-233"></a>
<a name="line-234"></a>     <span class='hs-varid'>close</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>ty</span>
<a name="line-235"></a>
<a name="line-236"></a>
<a name="line-237"></a>
<a name="line-238"></a><a name="makeConOpticExp"></a><span class='hs-comment'>-- | Construct either a Review or Prism as appropriate</span>
<a name="line-239"></a><span class='hs-definition'>makeConOpticExp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Stab</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-240"></a><span class='hs-definition'>makeConOpticExp</span> <span class='hs-varid'>stab</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span>
<a name="line-241"></a>  <span class='hs-keyword'>case</span> <span class='hs-varid'>stabType</span> <span class='hs-varid'>stab</span> <span class='hs-keyword'>of</span>
<a name="line-242"></a>    <span class='hs-conid'>PrismType</span>  <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>makeConPrismExp</span> <span class='hs-varid'>stab</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span>
<a name="line-243"></a>    <span class='hs-conid'>ReviewType</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>makeConReviewExp</span> <span class='hs-varid'>con</span>
<a name="line-244"></a>
<a name="line-245"></a>
<a name="line-246"></a><a name="makeConIso"></a><span class='hs-comment'>-- | Construct an iso declaration</span>
<a name="line-247"></a><span class='hs-definition'>makeConIso</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecsQ</span>
<a name="line-248"></a><span class='hs-definition'>makeConIso</span> <span class='hs-varid'>s</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span>
<a name="line-249"></a>  <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>ty</span>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>computeIsoType</span> <span class='hs-varid'>s</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconTypes</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span>
<a name="line-250"></a>         <span class='hs-varid'>defName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prismName</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span>
<a name="line-251"></a>     <span class='hs-varid'>sequenceA</span>
<a name="line-252"></a>       <span class='hs-keyglyph'>[</span> <span class='hs-varid'>sigD</span>       <span class='hs-varid'>defName</span>  <span class='hs-varid'>ty</span>
<a name="line-253"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>valD</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-varid'>defName</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeConIsoExp</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-254"></a>       <span class='hs-keyglyph'>]</span>
<a name="line-255"></a>
<a name="line-256"></a>
<a name="line-257"></a><a name="makeConPrismExp"></a><span class='hs-comment'>-- | Construct prism expression</span>
<a name="line-258"></a><span class='hs-comment'>--</span>
<a name="line-259"></a><span class='hs-comment'>-- prism &lt;&lt;reviewer&gt;&gt; &lt;&lt;remitter&gt;&gt;</span>
<a name="line-260"></a><span class='hs-definition'>makeConPrismExp</span> <span class='hs-keyglyph'>::</span>
<a name="line-261"></a>  <span class='hs-conid'>Stab</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-262"></a>  <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>{- ^ constructors       -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-263"></a>  <span class='hs-conid'>NCon</span>   <span class='hs-comment'>{- ^ target constructor -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-264"></a>  <span class='hs-conid'>ExpQ</span>
<a name="line-265"></a><span class='hs-definition'>makeConPrismExp</span> <span class='hs-varid'>stab</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appsE</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>varE</span> <span class='hs-varid'>prismValName</span><span class='hs-layout'>,</span> <span class='hs-varid'>reviewer</span><span class='hs-layout'>,</span> <span class='hs-varid'>remitter</span><span class='hs-keyglyph'>]</span>
<a name="line-266"></a>  <span class='hs-keyword'>where</span>
<a name="line-267"></a>  <span class='hs-varid'>ts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconTypes</span> <span class='hs-varid'>con</span>
<a name="line-268"></a>  <span class='hs-varid'>fields</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>ts</span>
<a name="line-269"></a>  <span class='hs-varid'>conName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span>
<a name="line-270"></a>
<a name="line-271"></a>  <span class='hs-varid'>reviewer</span>                   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeReviewer</span>       <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span>
<a name="line-272"></a>  <span class='hs-varid'>remitter</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>stabSimple</span> <span class='hs-varid'>stab</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeSimpleRemitter</span> <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</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'>makeFullRemitter</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>conName</span>
<a name="line-274"></a>
<a name="line-275"></a>
<a name="line-276"></a><a name="makeConIsoExp"></a><span class='hs-comment'>-- | Construct an Iso expression</span>
<a name="line-277"></a><span class='hs-comment'>--</span>
<a name="line-278"></a><span class='hs-comment'>-- iso &lt;&lt;reviewer&gt;&gt; &lt;&lt;remitter&gt;&gt;</span>
<a name="line-279"></a><span class='hs-definition'>makeConIsoExp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-280"></a><span class='hs-definition'>makeConIsoExp</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appsE</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>varE</span> <span class='hs-varid'>isoValName</span><span class='hs-layout'>,</span> <span class='hs-varid'>remitter</span><span class='hs-layout'>,</span> <span class='hs-varid'>reviewer</span><span class='hs-keyglyph'>]</span>
<a name="line-281"></a>  <span class='hs-keyword'>where</span>
<a name="line-282"></a>  <span class='hs-varid'>conName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span>
<a name="line-283"></a>  <span class='hs-varid'>fields</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconTypes</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span>
<a name="line-284"></a>
<a name="line-285"></a>  <span class='hs-varid'>reviewer</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeReviewer</span>    <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span>
<a name="line-286"></a>  <span class='hs-varid'>remitter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeIsoRemitter</span> <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span>
<a name="line-287"></a>
<a name="line-288"></a>
<a name="line-289"></a><a name="makeConReviewExp"></a><span class='hs-comment'>-- | Construct a Review expression</span>
<a name="line-290"></a><span class='hs-comment'>--</span>
<a name="line-291"></a><span class='hs-comment'>-- unto (\(x,y,z) -&gt; Con x y z)</span>
<a name="line-292"></a><span class='hs-definition'>makeConReviewExp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-293"></a><span class='hs-definition'>makeConReviewExp</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appE</span> <span class='hs-layout'>(</span><span class='hs-varid'>varE</span> <span class='hs-varid'>untoValName</span><span class='hs-layout'>)</span> <span class='hs-varid'>reviewer</span>
<a name="line-294"></a>  <span class='hs-keyword'>where</span>
<a name="line-295"></a>  <span class='hs-varid'>conName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span>
<a name="line-296"></a>  <span class='hs-varid'>fields</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-layout'>(</span><span class='hs-varid'>view</span> <span class='hs-varid'>nconTypes</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span>
<a name="line-297"></a>
<a name="line-298"></a>  <span class='hs-varid'>reviewer</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeReviewer</span> <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span>
<a name="line-299"></a>
<a name="line-300"></a>
<a name="line-301"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-302"></a><span class='hs-comment'>-- Prism and Iso component builders</span>
<a name="line-303"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-304"></a>
<a name="line-305"></a>
<a name="line-306"></a><a name="makeReviewer"></a><span class='hs-comment'>-- | Construct the review portion of a prism.</span>
<a name="line-307"></a><span class='hs-comment'>--</span>
<a name="line-308"></a><span class='hs-comment'>-- (\(x,y,z) -&gt; Con x y z) :: b -&gt; t</span>
<a name="line-309"></a><span class='hs-definition'>makeReviewer</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-310"></a><span class='hs-definition'>makeReviewer</span> <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>=</span>
<a name="line-311"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newNames</span> <span class='hs-str'>"x"</span> <span class='hs-varid'>fields</span>
<a name="line-312"></a>     <span class='hs-varid'>lam1E</span> <span class='hs-layout'>(</span><span class='hs-varid'>toTupleP</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varP</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-313"></a>           <span class='hs-layout'>(</span><span class='hs-varid'>conE</span> <span class='hs-varid'>conName</span> <span class='hs-varop'>`appsE1`</span> <span class='hs-varid'>map</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-314"></a>
<a name="line-315"></a>
<a name="line-316"></a><a name="makeSimpleRemitter"></a><span class='hs-comment'>-- | Construct the remit portion of a prism.</span>
<a name="line-317"></a><span class='hs-comment'>-- Pattern match only target constructor, no type changing</span>
<a name="line-318"></a><span class='hs-comment'>--</span>
<a name="line-319"></a><span class='hs-comment'>-- (\x -&gt; case s of</span>
<a name="line-320"></a><span class='hs-comment'>--          Con x y z -&gt; Right (x,y,z)</span>
<a name="line-321"></a><span class='hs-comment'>--          _         -&gt; Left x</span>
<a name="line-322"></a><span class='hs-comment'>-- ) :: s -&gt; Either s a</span>
<a name="line-323"></a><span class='hs-definition'>makeSimpleRemitter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-324"></a><span class='hs-definition'>makeSimpleRemitter</span> <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>=</span>
<a name="line-325"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>x</span>  <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newName</span> <span class='hs-str'>"x"</span>
<a name="line-326"></a>     <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newNames</span> <span class='hs-str'>"y"</span> <span class='hs-varid'>fields</span>
<a name="line-327"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>matches</span> <span class='hs-keyglyph'>=</span>
<a name="line-328"></a>           <span class='hs-keyglyph'>[</span> <span class='hs-varid'>match</span> <span class='hs-layout'>(</span><span class='hs-varid'>conP</span> <span class='hs-varid'>conName</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varP</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-329"></a>                   <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-layout'>(</span><span class='hs-varid'>appE</span> <span class='hs-layout'>(</span><span class='hs-varid'>conE</span> <span class='hs-varid'>rightDataName</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toTupleE</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-330"></a>                   <span class='hs-conid'>[]</span>
<a name="line-331"></a>           <span class='hs-layout'>,</span> <span class='hs-varid'>match</span> <span class='hs-varid'>wildP</span> <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-layout'>(</span><span class='hs-varid'>appE</span> <span class='hs-layout'>(</span><span class='hs-varid'>conE</span> <span class='hs-varid'>leftDataName</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>varE</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-332"></a>           <span class='hs-keyglyph'>]</span>
<a name="line-333"></a>     <span class='hs-varid'>lam1E</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>caseE</span> <span class='hs-layout'>(</span><span class='hs-varid'>varE</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>matches</span><span class='hs-layout'>)</span>
<a name="line-334"></a>
<a name="line-335"></a>
<a name="line-336"></a><a name="makeFullRemitter"></a><span class='hs-comment'>-- | Pattern match all constructors to enable type-changing</span>
<a name="line-337"></a><span class='hs-comment'>--</span>
<a name="line-338"></a><span class='hs-comment'>-- (\x -&gt; case s of</span>
<a name="line-339"></a><span class='hs-comment'>--          Con x y z -&gt; Right (x,y,z)</span>
<a name="line-340"></a><span class='hs-comment'>--          Other_n w   -&gt; Left (Other_n w)</span>
<a name="line-341"></a><span class='hs-comment'>-- ) :: s -&gt; Either t a</span>
<a name="line-342"></a><span class='hs-definition'>makeFullRemitter</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-343"></a><span class='hs-definition'>makeFullRemitter</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>target</span> <span class='hs-keyglyph'>=</span>
<a name="line-344"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newName</span> <span class='hs-str'>"x"</span>
<a name="line-345"></a>     <span class='hs-varid'>lam1E</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>caseE</span> <span class='hs-layout'>(</span><span class='hs-varid'>varE</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>mkMatch</span> <span class='hs-varid'>cons</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-346"></a>  <span class='hs-keyword'>where</span>
<a name="line-347"></a>  <span class='hs-varid'>mkMatch</span> <span class='hs-layout'>(</span><span class='hs-conid'>NCon</span> <span class='hs-varid'>conName</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-348"></a>    <span class='hs-keyword'>do</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newNames</span> <span class='hs-str'>"y"</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-349"></a>       <span class='hs-varid'>match</span> <span class='hs-layout'>(</span><span class='hs-varid'>conP</span> <span class='hs-varid'>conName</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varP</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-350"></a>             <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span>
<a name="line-351"></a>               <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>conName</span> <span class='hs-varop'>==</span> <span class='hs-varid'>target</span>
<a name="line-352"></a>                  <span class='hs-keyword'>then</span> <span class='hs-varid'>appE</span> <span class='hs-layout'>(</span><span class='hs-varid'>conE</span> <span class='hs-varid'>rightDataName</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toTupleE</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-353"></a>                  <span class='hs-keyword'>else</span> <span class='hs-varid'>appE</span> <span class='hs-layout'>(</span><span class='hs-varid'>conE</span> <span class='hs-varid'>leftDataName</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>conE</span> <span class='hs-varid'>conName</span> <span class='hs-varop'>`appsE1`</span> <span class='hs-varid'>map</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-354"></a>             <span class='hs-conid'>[]</span>
<a name="line-355"></a>
<a name="line-356"></a>
<a name="line-357"></a><a name="makeIsoRemitter"></a><span class='hs-comment'>-- | Construct the remitter suitable for use in an 'Iso'</span>
<a name="line-358"></a><span class='hs-comment'>--</span>
<a name="line-359"></a><span class='hs-comment'>-- (\(Con x y z) -&gt; (x,y,z)) :: s -&gt; a</span>
<a name="line-360"></a><span class='hs-definition'>makeIsoRemitter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ExpQ</span>
<a name="line-361"></a><span class='hs-definition'>makeIsoRemitter</span> <span class='hs-varid'>conName</span> <span class='hs-varid'>fields</span> <span class='hs-keyglyph'>=</span>
<a name="line-362"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newNames</span> <span class='hs-str'>"x"</span> <span class='hs-varid'>fields</span>
<a name="line-363"></a>     <span class='hs-varid'>lam1E</span> <span class='hs-layout'>(</span><span class='hs-varid'>conP</span> <span class='hs-varid'>conName</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varP</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-364"></a>           <span class='hs-layout'>(</span><span class='hs-varid'>toTupleE</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-365"></a>
<a name="line-366"></a>
<a name="line-367"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-368"></a><span class='hs-comment'>-- Classy prisms</span>
<a name="line-369"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-370"></a>
<a name="line-371"></a>
<a name="line-372"></a><a name="makeClassyPrismClass"></a><span class='hs-comment'>-- | Construct the classy prisms class for a given type and constructors.</span>
<a name="line-373"></a><span class='hs-comment'>--</span>
<a name="line-374"></a><span class='hs-comment'>-- class ClassName r &lt;&lt;vars in type&gt;&gt; | r -&gt; &lt;&lt;vars in Type&gt;&gt; where</span>
<a name="line-375"></a><span class='hs-comment'>--   topMethodName   :: Prism' r Type</span>
<a name="line-376"></a><span class='hs-comment'>--   conMethodName_n :: Prism' r conTypes_n</span>
<a name="line-377"></a><span class='hs-comment'>--   conMethodName_n = topMethodName . conMethodName_n</span>
<a name="line-378"></a><span class='hs-definition'>makeClassyPrismClass</span> <span class='hs-keyglyph'>::</span>
<a name="line-379"></a>  <span class='hs-conid'>Type</span>   <span class='hs-comment'>{- Outer type      -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-380"></a>  <span class='hs-conid'>Name</span>   <span class='hs-comment'>{- Class name      -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-381"></a>  <span class='hs-conid'>Name</span>   <span class='hs-comment'>{- Top method name -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-382"></a>  <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>{- Constructors    -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-383"></a>  <span class='hs-conid'>DecQ</span>
<a name="line-384"></a><span class='hs-definition'>makeClassyPrismClass</span> <span class='hs-varid'>t</span> <span class='hs-varid'>className</span> <span class='hs-varid'>methodName</span> <span class='hs-varid'>cons</span> <span class='hs-keyglyph'>=</span>
<a name="line-385"></a>  <span class='hs-keyword'>do</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newName</span> <span class='hs-str'>"r"</span>
<a name="line-386"></a><span class='hs-cpp'>#ifndef HLINT</span>
<a name="line-387"></a>     <span class='hs-keyword'>let</span> <span class='hs-varid'>methodType</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appsT</span> <span class='hs-layout'>(</span><span class='hs-varid'>conT</span> <span class='hs-varid'>prism'TypeName</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>varT</span> <span class='hs-varid'>r</span><span class='hs-layout'>,</span><span class='hs-varid'>return</span> <span class='hs-varid'>t</span><span class='hs-keyglyph'>]</span>
<a name="line-388"></a><span class='hs-cpp'>#endif</span>
<a name="line-389"></a>     <span class='hs-varid'>methodss</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>traverse</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkMethod</span> <span class='hs-layout'>(</span><span class='hs-conid'>VarT</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>cons'</span>
<a name="line-390"></a>     <span class='hs-varid'>classD</span> <span class='hs-layout'>(</span><span class='hs-varid'>cxt</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varid'>className</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-conid'>PlainTV</span> <span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-conop'>:</span> <span class='hs-varid'>vs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fds</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-391"></a>       <span class='hs-layout'>(</span> <span class='hs-varid'>sigD</span> <span class='hs-varid'>methodName</span> <span class='hs-varid'>methodType</span>
<a name="line-392"></a>       <span class='hs-conop'>:</span> <span class='hs-varid'>map</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>concat</span> <span class='hs-varid'>methodss</span><span class='hs-layout'>)</span>
<a name="line-393"></a>       <span class='hs-layout'>)</span>
<a name="line-394"></a>
<a name="line-395"></a>  <span class='hs-keyword'>where</span>
<a name="line-396"></a>  <span class='hs-varid'>mkMethod</span> <span class='hs-varid'>r</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>=</span>
<a name="line-397"></a>    <span class='hs-keyword'>do</span> <span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>o</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>computeOpticType</span> <span class='hs-varid'>t</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span>
<a name="line-398"></a>       <span class='hs-keyword'>let</span> <span class='hs-varid'>stab'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stab</span> <span class='hs-varid'>cx</span> <span class='hs-varid'>o</span> <span class='hs-varid'>r</span> <span class='hs-varid'>r</span> <span class='hs-varid'>b</span> <span class='hs-varid'>b</span>
<a name="line-399"></a>           <span class='hs-varid'>defName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span>
<a name="line-400"></a>           <span class='hs-varid'>body</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>appsE</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>varE</span> <span class='hs-varid'>composeValName</span><span class='hs-layout'>,</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>methodName</span><span class='hs-layout'>,</span> <span class='hs-varid'>varE</span> <span class='hs-varid'>defName</span><span class='hs-keyglyph'>]</span>
<a name="line-401"></a>       <span class='hs-varid'>sequenceA</span>
<a name="line-402"></a>         <span class='hs-keyglyph'>[</span> <span class='hs-varid'>sigD</span> <span class='hs-varid'>defName</span>        <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>stabToType</span> <span class='hs-varid'>stab'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-403"></a>         <span class='hs-layout'>,</span> <span class='hs-varid'>valD</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-varid'>defName</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-varid'>body</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-404"></a>         <span class='hs-keyglyph'>]</span>
<a name="line-405"></a>
<a name="line-406"></a>  <span class='hs-varid'>cons'</span>         <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>over</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>prismName</span><span class='hs-layout'>)</span> <span class='hs-varid'>cons</span>
<a name="line-407"></a>  <span class='hs-varid'>vs</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-layout'>(</span><span class='hs-varid'>setOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-408"></a>  <span class='hs-varid'>fds</span> <span class='hs-varid'>r</span>
<a name="line-409"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>null</span> <span class='hs-varid'>vs</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-410"></a>    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FunDep</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>r</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>vs</span><span class='hs-keyglyph'>]</span>
<a name="line-411"></a>
<a name="line-412"></a>
<a name="line-413"></a>
<a name="line-414"></a><a name="makeClassyPrismInstance"></a><span class='hs-comment'>-- | Construct the classy prisms instance for a given type and constructors.</span>
<a name="line-415"></a><span class='hs-comment'>--</span>
<a name="line-416"></a><span class='hs-comment'>-- instance Classname OuterType where</span>
<a name="line-417"></a><span class='hs-comment'>--   topMethodName = id</span>
<a name="line-418"></a><span class='hs-comment'>--   conMethodName_n = &lt;&lt;prism&gt;&gt;</span>
<a name="line-419"></a><span class='hs-definition'>makeClassyPrismInstance</span> <span class='hs-keyglyph'>::</span>
<a name="line-420"></a>  <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-421"></a>  <span class='hs-conid'>Name</span>     <span class='hs-comment'>{- Class name      -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-422"></a>  <span class='hs-conid'>Name</span>     <span class='hs-comment'>{- Top method name -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-423"></a>  <span class='hs-keyglyph'>[</span><span class='hs-conid'>NCon</span><span class='hs-keyglyph'>]</span> <span class='hs-comment'>{- Constructors    -}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-424"></a>  <span class='hs-conid'>DecQ</span>
<a name="line-425"></a><span class='hs-definition'>makeClassyPrismInstance</span> <span class='hs-varid'>s</span> <span class='hs-varid'>className</span> <span class='hs-varid'>methodName</span> <span class='hs-varid'>cons</span> <span class='hs-keyglyph'>=</span>
<a name="line-426"></a>  <span class='hs-keyword'>do</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>vs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-layout'>(</span><span class='hs-varid'>setOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-427"></a>         <span class='hs-varid'>cls</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>className</span> <span class='hs-varop'>`conAppsT`</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-conop'>:</span> <span class='hs-varid'>map</span> <span class='hs-conid'>VarT</span> <span class='hs-varid'>vs</span><span class='hs-layout'>)</span>
<a name="line-428"></a>
<a name="line-429"></a>     <span class='hs-varid'>instanceD</span> <span class='hs-layout'>(</span><span class='hs-varid'>cxt</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>cls</span><span class='hs-layout'>)</span>
<a name="line-430"></a>       <span class='hs-layout'>(</span>   <span class='hs-varid'>valD</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-varid'>methodName</span><span class='hs-layout'>)</span>
<a name="line-431"></a>                <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-layout'>(</span><span class='hs-varid'>varE</span> <span class='hs-varid'>idValName</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-432"></a>       <span class='hs-conop'>:</span> <span class='hs-keyglyph'>[</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>stab</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>computeOpticType</span> <span class='hs-varid'>s</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span>
<a name="line-433"></a>              <span class='hs-keyword'>let</span> <span class='hs-varid'>stab'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>simplifyStab</span> <span class='hs-varid'>stab</span>
<a name="line-434"></a>              <span class='hs-varid'>valD</span> <span class='hs-layout'>(</span><span class='hs-varid'>varP</span> <span class='hs-layout'>(</span><span class='hs-varid'>prismName</span> <span class='hs-varid'>conName</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-435"></a>                <span class='hs-layout'>(</span><span class='hs-varid'>normalB</span> <span class='hs-layout'>(</span><span class='hs-varid'>makeConOpticExp</span> <span class='hs-varid'>stab'</span> <span class='hs-varid'>cons</span> <span class='hs-varid'>con</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span>
<a name="line-436"></a>           <span class='hs-keyglyph'>|</span> <span class='hs-varid'>con</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>cons</span>
<a name="line-437"></a>           <span class='hs-layout'>,</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>conName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>view</span> <span class='hs-varid'>nconName</span> <span class='hs-varid'>con</span>
<a name="line-438"></a>           <span class='hs-keyglyph'>]</span>
<a name="line-439"></a>       <span class='hs-layout'>)</span>
<a name="line-440"></a>
<a name="line-441"></a>
<a name="line-442"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-443"></a><span class='hs-comment'>-- Utilities</span>
<a name="line-444"></a><span class='hs-comment'>------------------------------------------------------------------------</span>
<a name="line-445"></a>
<a name="line-446"></a>
<a name="line-447"></a><a name="NCon"></a><span class='hs-comment'>-- | Normalized constructor</span>
<a name="line-448"></a><a name="NCon"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NCon</span>
<a name="line-449"></a>  <span class='hs-layout'>{</span> <span class='hs-sel'>_nconName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span>
<a name="line-450"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_nconVars</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Name</span><span class='hs-keyglyph'>]</span>
<a name="line-451"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_nconCxt</span>  <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Cxt</span>
<a name="line-452"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_nconTypes</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Type</span><span class='hs-keyglyph'>]</span>
<a name="line-453"></a>  <span class='hs-layout'>}</span>
<a name="line-454"></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-455"></a>
<a name="line-456"></a><a name="instance%20HasTypeVars%20NCon"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>HasTypeVars</span> <span class='hs-conid'>NCon</span> <span class='hs-keyword'>where</span>
<a name="line-457"></a>  <span class='hs-varid'>typeVarsEx</span> <span class='hs-varid'>s</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>NCon</span> <span class='hs-varid'>x</span> <span class='hs-varid'>vars</span> <span class='hs-varid'>y</span> <span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NCon</span> <span class='hs-varid'>x</span> <span class='hs-varid'>vars</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>typeVarsEx</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>f</span> <span class='hs-varid'>y</span> <span class='hs-varop'>&lt;*&gt;</span> <span class='hs-varid'>typeVarsEx</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>f</span> <span class='hs-varid'>z</span>
<a name="line-458"></a>    <span class='hs-keyword'>where</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span> <span class='hs-varid'>vars</span>
<a name="line-459"></a>
<a name="line-460"></a><a name="nconName"></a><span class='hs-definition'>nconName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Lens'</span> <span class='hs-conid'>NCon</span> <span class='hs-conid'>Name</span>
<a name="line-461"></a><span class='hs-definition'>nconName</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>x</span> <span class='hs-layout'>{</span><span class='hs-sel'>_nconName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-sel'>_nconName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-462"></a>
<a name="line-463"></a><a name="nconCxt"></a><span class='hs-definition'>nconCxt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Lens'</span> <span class='hs-conid'>NCon</span> <span class='hs-conid'>Cxt</span>
<a name="line-464"></a><span class='hs-definition'>nconCxt</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>x</span> <span class='hs-layout'>{</span><span class='hs-sel'>_nconCxt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-sel'>_nconCxt</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-465"></a>
<a name="line-466"></a><a name="nconTypes"></a><span class='hs-definition'>nconTypes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Lens'</span> <span class='hs-conid'>NCon</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Type</span><span class='hs-keyglyph'>]</span>
<a name="line-467"></a><span class='hs-definition'>nconTypes</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>y</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>x</span> <span class='hs-layout'>{</span><span class='hs-sel'>_nconTypes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-sel'>_nconTypes</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-468"></a>
<a name="line-469"></a>
<a name="line-470"></a><a name="normalizeCon"></a><span class='hs-comment'>-- | Normalize a single 'Con' to its constructor name and field types.</span>
<a name="line-471"></a><span class='hs-definition'>normalizeCon</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-conid'>ConstructorInfo</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NCon</span>
<a name="line-472"></a><span class='hs-definition'>normalizeCon</span> <span class='hs-varid'>info</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NCon</span> <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>constructorName</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span>
<a name="line-473"></a>                         <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>tvName</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>constructorVars</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span>
<a name="line-474"></a>                         <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>constructorContext</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span>
<a name="line-475"></a>                         <span class='hs-layout'>(</span><span class='hs-conid'>D</span><span class='hs-varop'>.</span><span class='hs-varid'>constructorFields</span> <span class='hs-varid'>info</span><span class='hs-layout'>)</span>
<a name="line-476"></a>
<a name="line-477"></a>
<a name="line-478"></a><a name="prismName"></a><span class='hs-comment'>-- | Compute a prism's name by prefixing an underscore for normal</span>
<a name="line-479"></a><span class='hs-comment'>-- constructors and period for operators.</span>
<a name="line-480"></a><span class='hs-definition'>prismName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Name</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Name</span>
<a name="line-481"></a><span class='hs-definition'>prismName</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>nameBase</span> <span class='hs-varid'>n</span> <span class='hs-keyword'>of</span>
<a name="line-482"></a>                <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>error</span> <span class='hs-str'>"prismName: empty name base?"</span>
<a name="line-483"></a>                <span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isUpper</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>mkName</span> <span class='hs-layout'>(</span><span class='hs-chr'>'_'</span><span class='hs-conop'>:</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-484"></a>                     <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>mkName</span> <span class='hs-layout'>(</span><span class='hs-chr'>'.'</span><span class='hs-conop'>:</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- operator</span>
<a name="line-485"></a>
<a name="line-486"></a>
<a name="line-487"></a><a name="close"></a><span class='hs-comment'>-- | Quantify all the free variables in a type.</span>
<a name="line-488"></a><span class='hs-definition'>close</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Type</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>TypeQ</span>
<a name="line-489"></a><span class='hs-definition'>close</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>forallT</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-conid'>PlainTV</span> <span class='hs-layout'>(</span><span class='hs-conid'>Set</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span> <span class='hs-varid'>vs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>cxt</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-490"></a>  <span class='hs-keyword'>where</span>
<a name="line-491"></a>  <span class='hs-varid'>vs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>setOf</span> <span class='hs-varid'>typeVars</span> <span class='hs-varid'>t</span>
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