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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/Exception/Lens.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-comment'>{-# LANGUAGE Rank2Types #-}</span>
<a name="line-3"></a><span class='hs-comment'>{-# LANGUAGE FlexibleInstances #-}</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE ScopedTypeVariables #-}</span>
<a name="line-5"></a><span class='hs-comment'>{-# LANGUAGE MultiParamTypeClasses #-}</span>
<a name="line-6"></a><span class='hs-comment'>{-# LANGUAGE NoMonomorphismRestriction #-}</span>
<a name="line-7"></a>
<a name="line-8"></a><span class='hs-cpp'>#ifdef TRUSTWORTHY</span>
<a name="line-9"></a><span class='hs-comment'>{-# LANGUAGE Trustworthy #-}</span>
<a name="line-10"></a><span class='hs-cpp'>#endif</span>
<a name="line-11"></a>
<a name="line-12"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-13"></a><span class='hs-comment'>{-# LANGUAGE PatternSynonyms #-}</span>
<a name="line-14"></a><span class='hs-comment'>{-# LANGUAGE ViewPatterns #-}</span>
<a name="line-15"></a><span class='hs-cpp'>#endif</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='hs-cpp'>#ifndef MIN_VERSION_base</span>
<a name="line-18"></a><span class='hs-cpp'>#define MIN_VERSION_base(x,y,z) 1</span>
<a name="line-19"></a><span class='hs-cpp'>#endif</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-cpp'>#ifndef MIN_VERSION_exceptions</span>
<a name="line-22"></a><span class='hs-cpp'>#define MIN_VERSION_exceptions 1</span>
<a name="line-23"></a><span class='hs-cpp'>#endif</span>
<a name="line-24"></a>
<a name="line-25"></a><span class='hs-cpp'>#if !(MIN_VERSION_exceptions(0,4,0))</span>
<a name="line-26"></a><span class='hs-cpp'>#define MonadThrow MonadCatch</span>
<a name="line-27"></a><span class='hs-cpp'>#endif</span>
<a name="line-28"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-29"></a><span class='hs-comment'>-- |</span>
<a name="line-30"></a><span class='hs-comment'>-- Module      :  Control.Exception.Lens</span>
<a name="line-31"></a><span class='hs-comment'>-- Copyright   :  (C) 2012-16 Edward Kmett</span>
<a name="line-32"></a><span class='hs-comment'>-- License     :  BSD-style (see the file LICENSE)</span>
<a name="line-33"></a><span class='hs-comment'>-- Maintainer  :  Edward Kmett &lt;ekmett@gmail.com&gt;</span>
<a name="line-34"></a><span class='hs-comment'>-- Stability   :  provisional</span>
<a name="line-35"></a><span class='hs-comment'>-- Portability :  Control.Exception</span>
<a name="line-36"></a><span class='hs-comment'>--</span>
<a name="line-37"></a><span class='hs-comment'>-- @Control.Exception@ provides an example of a large open hierarchy</span>
<a name="line-38"></a><span class='hs-comment'>-- that we can model with prisms and isomorphisms.</span>
<a name="line-39"></a><span class='hs-comment'>--</span>
<a name="line-40"></a><span class='hs-comment'>-- Additional combinators for working with 'IOException' results can</span>
<a name="line-41"></a><span class='hs-comment'>-- be found in "System.IO.Error.Lens".</span>
<a name="line-42"></a><span class='hs-comment'>--</span>
<a name="line-43"></a><span class='hs-comment'>-- The combinators in this module have been generalized to work with</span>
<a name="line-44"></a><span class='hs-comment'>-- 'MonadCatch' instead of just 'IO'. This enables them to be used</span>
<a name="line-45"></a><span class='hs-comment'>-- more easily in 'Monad' transformer stacks.</span>
<a name="line-46"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-47"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span>
<a name="line-48"></a>  <span class='hs-layout'>(</span>
<a name="line-49"></a>  <span class='hs-comment'>-- * Handling</span>
<a name="line-50"></a>    <span class='hs-varid'>catching</span><span class='hs-layout'>,</span> <span class='hs-varid'>catching_</span>
<a name="line-51"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>handling</span><span class='hs-layout'>,</span> <span class='hs-varid'>handling_</span>
<a name="line-52"></a>  <span class='hs-comment'>-- * Trying</span>
<a name="line-53"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>trying</span><span class='hs-layout'>,</span> <span class='hs-varid'>trying_</span>
<a name="line-54"></a>  <span class='hs-comment'>-- * Throwing</span>
<a name="line-55"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>throwing</span>
<a name="line-56"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>throwing_</span>
<a name="line-57"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>throwingM</span>
<a name="line-58"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>throwingTo</span>
<a name="line-59"></a>  <span class='hs-comment'>-- * Mapping</span>
<a name="line-60"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>mappedException</span><span class='hs-layout'>,</span> <span class='hs-varid'>mappedException'</span>
<a name="line-61"></a>  <span class='hs-comment'>-- * Exceptions</span>
<a name="line-62"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>exception</span>
<a name="line-63"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-64"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>Exception</span>
<a name="line-65"></a><span class='hs-cpp'>#endif</span>
<a name="line-66"></a>  <span class='hs-comment'>-- * Exception Handlers</span>
<a name="line-67"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>Handleable</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-68"></a>  <span class='hs-comment'>-- ** IOExceptions</span>
<a name="line-69"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsIOException</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-70"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-71"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>IOException_</span>
<a name="line-72"></a><span class='hs-cpp'>#endif</span>
<a name="line-73"></a>  <span class='hs-comment'>-- ** Arithmetic Exceptions</span>
<a name="line-74"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsArithException</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-75"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_Overflow</span><span class='hs-layout'>,</span> <span class='hs-sel'>_Underflow</span><span class='hs-layout'>,</span> <span class='hs-sel'>_LossOfPrecision</span><span class='hs-layout'>,</span> <span class='hs-sel'>_DivideByZero</span><span class='hs-layout'>,</span> <span class='hs-sel'>_Denormal</span>
<a name="line-76"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,6,0)</span>
<a name="line-77"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_RatioZeroDenominator</span>
<a name="line-78"></a><span class='hs-cpp'>#endif</span>
<a name="line-79"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-80"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>ArithException_</span>
<a name="line-81"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>Overflow_</span>
<a name="line-82"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>Underflow_</span>
<a name="line-83"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>LossOfPrecision_</span>
<a name="line-84"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>DivideByZero_</span>
<a name="line-85"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>Denormal_</span>
<a name="line-86"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>RatioZeroDenominator_</span>
<a name="line-87"></a><span class='hs-cpp'>#endif</span>
<a name="line-88"></a>  <span class='hs-comment'>-- ** Array Exceptions</span>
<a name="line-89"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsArrayException</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-90"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_IndexOutOfBounds</span>
<a name="line-91"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_UndefinedElement</span>
<a name="line-92"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-93"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>ArrayException_</span>
<a name="line-94"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>IndexOutOfBounds_</span>
<a name="line-95"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>UndefinedElement_</span>
<a name="line-96"></a><span class='hs-cpp'>#endif</span>
<a name="line-97"></a>  <span class='hs-comment'>-- ** Assertion Failed</span>
<a name="line-98"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsAssertionFailed</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-99"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-100"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>AssertionFailed_</span>
<a name="line-101"></a><span class='hs-cpp'>#endif</span>
<a name="line-102"></a>  <span class='hs-comment'>-- ** Async Exceptions</span>
<a name="line-103"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsAsyncException</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-104"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_StackOverflow</span>
<a name="line-105"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_HeapOverflow</span>
<a name="line-106"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_ThreadKilled</span>
<a name="line-107"></a>  <span class='hs-layout'>,</span> <span class='hs-sel'>_UserInterrupt</span>
<a name="line-108"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-109"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>AsyncException_</span>
<a name="line-110"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>StackOverflow_</span>
<a name="line-111"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>HeapOverflow_</span>
<a name="line-112"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>ThreadKilled_</span>
<a name="line-113"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>UserInterrupt_</span>
<a name="line-114"></a><span class='hs-cpp'>#endif</span>
<a name="line-115"></a>  <span class='hs-comment'>-- ** Non-Termination</span>
<a name="line-116"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsNonTermination</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-117"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-118"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>NonTermination_</span>
<a name="line-119"></a><span class='hs-cpp'>#endif</span>
<a name="line-120"></a>  <span class='hs-comment'>-- ** Nested Atomically</span>
<a name="line-121"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsNestedAtomically</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-122"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-123"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>NestedAtomically_</span>
<a name="line-124"></a><span class='hs-cpp'>#endif</span>
<a name="line-125"></a>  <span class='hs-comment'>-- ** Blocked Indefinitely</span>
<a name="line-126"></a>  <span class='hs-comment'>-- *** on MVar</span>
<a name="line-127"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsBlockedIndefinitelyOnMVar</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-128"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-129"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>BlockedIndefinitelyOnMVar_</span>
<a name="line-130"></a><span class='hs-cpp'>#endif</span>
<a name="line-131"></a>  <span class='hs-comment'>-- *** on STM</span>
<a name="line-132"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsBlockedIndefinitelyOnSTM</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-133"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-134"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>BlockedIndefinitelyOnSTM_</span>
<a name="line-135"></a><span class='hs-cpp'>#endif</span>
<a name="line-136"></a>  <span class='hs-comment'>-- ** Deadlock</span>
<a name="line-137"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsDeadlock</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-138"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-139"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>Deadlock_</span>
<a name="line-140"></a><span class='hs-cpp'>#endif</span>
<a name="line-141"></a>  <span class='hs-comment'>-- ** No Such Method</span>
<a name="line-142"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsNoMethodError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-143"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-144"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>NoMethodError_</span>
<a name="line-145"></a><span class='hs-cpp'>#endif</span>
<a name="line-146"></a>  <span class='hs-comment'>-- ** Pattern Match Failure</span>
<a name="line-147"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsPatternMatchFail</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-148"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-149"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>PatternMatchFail_</span>
<a name="line-150"></a><span class='hs-cpp'>#endif</span>
<a name="line-151"></a>  <span class='hs-comment'>-- ** Record</span>
<a name="line-152"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsRecConError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-153"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsRecSelError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-154"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsRecUpdError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-155"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-156"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>RecConError_</span>
<a name="line-157"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>RecSelError_</span>
<a name="line-158"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>RecUpdError_</span>
<a name="line-159"></a><span class='hs-cpp'>#endif</span>
<a name="line-160"></a>  <span class='hs-comment'>-- ** Error Call</span>
<a name="line-161"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsErrorCall</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-162"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-163"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>ErrorCall_</span>
<a name="line-164"></a><span class='hs-cpp'>#endif</span>
<a name="line-165"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,8,0)</span>
<a name="line-166"></a>  <span class='hs-comment'>-- ** Allocation Limit Exceeded</span>
<a name="line-167"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsAllocationLimitExceeded</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-168"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>AllocationLimitExceeded_</span>
<a name="line-169"></a><span class='hs-cpp'>#endif</span>
<a name="line-170"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,9,0)</span>
<a name="line-171"></a>  <span class='hs-comment'>-- ** Type Error</span>
<a name="line-172"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsTypeError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-173"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>TypeError_</span>
<a name="line-174"></a><span class='hs-cpp'>#endif</span>
<a name="line-175"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,10,0)</span>
<a name="line-176"></a>  <span class='hs-comment'>-- ** Compaction Failed</span>
<a name="line-177"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsCompactionFailed</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-178"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>CompactionFailed_</span>
<a name="line-179"></a><span class='hs-cpp'>#endif</span>
<a name="line-180"></a>  <span class='hs-comment'>-- * Handling Exceptions</span>
<a name="line-181"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>AsHandlingException</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-182"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-183"></a>  <span class='hs-layout'>,</span> <span class='hs-varid'>pattern</span> <span class='hs-conid'>HandlingException_</span>
<a name="line-184"></a><span class='hs-cpp'>#endif</span>
<a name="line-185"></a>  <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-186"></a>
<a name="line-187"></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-188"></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-189"></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'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span>
<a name="line-190"></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'>Catch</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Catch</span>
<a name="line-191"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Exception</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>try</span><span class='hs-layout'>,</span> <span class='hs-varid'>tryJust</span><span class='hs-layout'>,</span> <span class='hs-varid'>catchJust</span><span class='hs-layout'>)</span>
<a name="line-192"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Lens</span>
<a name="line-193"></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'>Exception</span>
<a name="line-194"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Monoid</span>
<a name="line-195"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Conc</span> <span class='hs-layout'>(</span><span class='hs-conid'>ThreadId</span><span class='hs-layout'>)</span>
<a name="line-196"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span>
<a name="line-197"></a>  <span class='hs-layout'>(</span> <span class='hs-varid'>const</span><span class='hs-layout'>,</span> <span class='hs-varid'>either</span><span class='hs-layout'>,</span> <span class='hs-varid'>flip</span><span class='hs-layout'>,</span> <span class='hs-varid'>id</span>
<a name="line-198"></a>  <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>.</span><span class='hs-layout'>)</span>
<a name="line-199"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>Maybe</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Either</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span>
<a name="line-200"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-201"></a>  <span class='hs-layout'>,</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-202"></a><span class='hs-cpp'>#endif</span>
<a name="line-203"></a>  <span class='hs-layout'>)</span>
<a name="line-204"></a>
<a name="line-205"></a><span class='hs-cpp'>#ifdef HLINT</span>
<a name="line-206"></a><span class='hs-comment'>{-# ANN module "HLint: ignore Use Control.Exception.catch" #-}</span>
<a name="line-207"></a><span class='hs-cpp'>#endif</span>
<a name="line-208"></a>
<a name="line-209"></a><span class='hs-comment'>-- $setup</span>
<a name="line-210"></a><span class='hs-comment'>-- &gt;&gt;&gt; :set -XNoOverloadedStrings</span>
<a name="line-211"></a><span class='hs-comment'>-- &gt;&gt;&gt; :m + Control.Exception Control.Monad Data.List Prelude</span>
<a name="line-212"></a>
<a name="line-213"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-214"></a><span class='hs-comment'>-- Exceptions as Prisms</span>
<a name="line-215"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-216"></a>
<a name="line-217"></a><a name="exception"></a><span class='hs-comment'>-- | Traverse the strongly typed 'Exception' contained in 'SomeException' where the type of your function matches</span>
<a name="line-218"></a><span class='hs-comment'>-- the desired 'Exception'.</span>
<a name="line-219"></a><span class='hs-comment'>--</span>
<a name="line-220"></a><span class='hs-comment'>-- @</span>
<a name="line-221"></a><span class='hs-comment'>-- 'exception' :: ('Applicative' f, 'Exception' a)</span>
<a name="line-222"></a><span class='hs-comment'>--           =&gt; (a -&gt; f a) -&gt; 'SomeException' -&gt; f 'SomeException'</span>
<a name="line-223"></a><span class='hs-comment'>-- @</span>
<a name="line-224"></a><span class='hs-definition'>exception</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exception</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span>
<a name="line-225"></a><span class='hs-definition'>exception</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prism'</span> <span class='hs-varid'>toException</span> <span class='hs-varid'>fromException</span>
<a name="line-226"></a><span class='hs-comment'>{-# INLINE exception #-}</span>
<a name="line-227"></a>
<a name="line-228"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-229"></a><a name="pattern"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Exception</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-varid'>exception</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-230"></a>  <span class='hs-conid'>Exception</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-varid'>exception</span> <span class='hs-varid'>e</span>
<a name="line-231"></a><span class='hs-cpp'>#endif</span>
<a name="line-232"></a>
<a name="line-233"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-234"></a><span class='hs-comment'>-- Catching</span>
<a name="line-235"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-236"></a>
<a name="line-237"></a><a name="catching"></a><span class='hs-comment'>-- | Catch exceptions that match a given 'Prism' (or any 'Fold', really).</span>
<a name="line-238"></a><span class='hs-comment'>--</span>
<a name="line-239"></a><span class='hs-comment'>-- &gt;&gt;&gt; catching _AssertionFailed (assert False (return "uncaught")) $ \ _ -&gt; return "caught"</span>
<a name="line-240"></a><span class='hs-comment'>-- "caught"</span>
<a name="line-241"></a><span class='hs-comment'>--</span>
<a name="line-242"></a><span class='hs-comment'>-- @</span>
<a name="line-243"></a><span class='hs-comment'>-- 'catching' :: 'MonadCatch' m =&gt; 'Prism'' 'SomeException' a     -&gt; m r -&gt; (a -&gt; m r) -&gt; m r</span>
<a name="line-244"></a><span class='hs-comment'>-- 'catching' :: 'MonadCatch' m =&gt; 'Lens'' 'SomeException' a      -&gt; m r -&gt; (a -&gt; m r) -&gt; m r</span>
<a name="line-245"></a><span class='hs-comment'>-- 'catching' :: 'MonadCatch' m =&gt; 'Traversal'' 'SomeException' a -&gt; m r -&gt; (a -&gt; m r) -&gt; m r</span>
<a name="line-246"></a><span class='hs-comment'>-- 'catching' :: 'MonadCatch' m =&gt; 'Iso'' 'SomeException' a       -&gt; m r -&gt; (a -&gt; m r) -&gt; m r</span>
<a name="line-247"></a><span class='hs-comment'>-- 'catching' :: 'MonadCatch' m =&gt; 'Getter' 'SomeException' a     -&gt; m r -&gt; (a -&gt; m r) -&gt; m r</span>
<a name="line-248"></a><span class='hs-comment'>-- 'catching' :: 'MonadCatch' m =&gt; 'Fold' 'SomeException' a       -&gt; m r -&gt; (a -&gt; m r) -&gt; m r</span>
<a name="line-249"></a><span class='hs-comment'>-- @</span>
<a name="line-250"></a><span class='hs-definition'>catching</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadCatch</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Getting</span> <span class='hs-layout'>(</span><span class='hs-conid'>First</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span>
<a name="line-251"></a><span class='hs-definition'>catching</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>catchJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-252"></a><span class='hs-comment'>{-# INLINE catching #-}</span>
<a name="line-253"></a>
<a name="line-254"></a><a name="catching_"></a><span class='hs-comment'>-- | Catch exceptions that match a given 'Prism' (or any 'Getter'), discarding</span>
<a name="line-255"></a><span class='hs-comment'>-- the information about the match. This is particuarly useful when you have</span>
<a name="line-256"></a><span class='hs-comment'>-- a @'Prism'' e ()@ where the result of the 'Prism' or 'Fold' isn't</span>
<a name="line-257"></a><span class='hs-comment'>-- particularly valuable, just the fact that it matches.</span>
<a name="line-258"></a><span class='hs-comment'>--</span>
<a name="line-259"></a><span class='hs-comment'>-- &gt;&gt;&gt; catching_ _AssertionFailed (assert False (return "uncaught")) $ return "caught"</span>
<a name="line-260"></a><span class='hs-comment'>-- "caught"</span>
<a name="line-261"></a><span class='hs-comment'>--</span>
<a name="line-262"></a><span class='hs-comment'>-- @</span>
<a name="line-263"></a><span class='hs-comment'>-- 'catching_' :: 'MonadCatch' m =&gt; 'Prism'' 'SomeException' a     -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-264"></a><span class='hs-comment'>-- 'catching_' :: 'MonadCatch' m =&gt; 'Lens'' 'SomeException' a      -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-265"></a><span class='hs-comment'>-- 'catching_' :: 'MonadCatch' m =&gt; 'Traversal'' 'SomeException' a -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-266"></a><span class='hs-comment'>-- 'catching_' :: 'MonadCatch' m =&gt; 'Iso'' 'SomeException' a       -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-267"></a><span class='hs-comment'>-- 'catching_' :: 'MonadCatch' m =&gt; 'Getter' 'SomeException' a     -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-268"></a><span class='hs-comment'>-- 'catching_' :: 'MonadCatch' m =&gt; 'Fold' 'SomeException' a       -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-269"></a><span class='hs-comment'>-- @</span>
<a name="line-270"></a><span class='hs-definition'>catching_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadCatch</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Getting</span> <span class='hs-layout'>(</span><span class='hs-conid'>First</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span>
<a name="line-271"></a><span class='hs-definition'>catching_</span> <span class='hs-varid'>l</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>catchJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-272"></a><span class='hs-comment'>{-# INLINE catching_ #-}</span>
<a name="line-273"></a>
<a name="line-274"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-275"></a><span class='hs-comment'>-- Handling</span>
<a name="line-276"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-277"></a>
<a name="line-278"></a><a name="handling"></a><span class='hs-comment'>-- | A version of 'catching' with the arguments swapped around; useful in</span>
<a name="line-279"></a><span class='hs-comment'>-- situations where the code for the handler is shorter.</span>
<a name="line-280"></a><span class='hs-comment'>--</span>
<a name="line-281"></a><span class='hs-comment'>-- &gt;&gt;&gt; handling _NonTermination (\_ -&gt; return "caught") $ throwIO NonTermination</span>
<a name="line-282"></a><span class='hs-comment'>-- "caught"</span>
<a name="line-283"></a><span class='hs-comment'>--</span>
<a name="line-284"></a><span class='hs-comment'>-- @</span>
<a name="line-285"></a><span class='hs-comment'>-- 'handling' :: 'MonadCatch' m =&gt; 'Prism'' 'SomeException' a     -&gt; (a -&gt; m r) -&gt; m r -&gt; m r</span>
<a name="line-286"></a><span class='hs-comment'>-- 'handling' :: 'MonadCatch' m =&gt; 'Lens'' 'SomeException' a      -&gt; (a -&gt; m r) -&gt; m r -&gt; m r</span>
<a name="line-287"></a><span class='hs-comment'>-- 'handling' :: 'MonadCatch' m =&gt; 'Traversal'' 'SomeException' a -&gt; (a -&gt; m r) -&gt; m r -&gt; m r</span>
<a name="line-288"></a><span class='hs-comment'>-- 'handling' :: 'MonadCatch' m =&gt; 'Iso'' 'SomeException' a       -&gt; (a -&gt; m r) -&gt; m r -&gt; m r</span>
<a name="line-289"></a><span class='hs-comment'>-- 'handling' :: 'MonadCatch' m =&gt; 'Fold' 'SomeException' a       -&gt; (a -&gt; m r) -&gt; m r -&gt; m r</span>
<a name="line-290"></a><span class='hs-comment'>-- 'handling' :: 'MonadCatch' m =&gt; 'Getter' 'SomeException' a     -&gt; (a -&gt; m r) -&gt; m r -&gt; m r</span>
<a name="line-291"></a><span class='hs-comment'>-- @</span>
<a name="line-292"></a><span class='hs-definition'>handling</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadCatch</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Getting</span> <span class='hs-layout'>(</span><span class='hs-conid'>First</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span>
<a name="line-293"></a><span class='hs-definition'>handling</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-varid'>catching</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-294"></a><span class='hs-comment'>{-# INLINE handling #-}</span>
<a name="line-295"></a>
<a name="line-296"></a><a name="handling_"></a><span class='hs-comment'>-- | A version of 'catching_' with the arguments swapped around; useful in</span>
<a name="line-297"></a><span class='hs-comment'>-- situations where the code for the handler is shorter.</span>
<a name="line-298"></a><span class='hs-comment'>--</span>
<a name="line-299"></a><span class='hs-comment'>-- &gt;&gt;&gt; handling_ _NonTermination (return "caught") $ throwIO NonTermination</span>
<a name="line-300"></a><span class='hs-comment'>-- "caught"</span>
<a name="line-301"></a><span class='hs-comment'>--</span>
<a name="line-302"></a><span class='hs-comment'>-- @</span>
<a name="line-303"></a><span class='hs-comment'>-- 'handling_' :: 'MonadCatch' m =&gt; 'Prism'' 'SomeException' a     -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-304"></a><span class='hs-comment'>-- 'handling_' :: 'MonadCatch' m =&gt; 'Lens'' 'SomeException' a      -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-305"></a><span class='hs-comment'>-- 'handling_' :: 'MonadCatch' m =&gt; 'Traversal'' 'SomeException' a -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-306"></a><span class='hs-comment'>-- 'handling_' :: 'MonadCatch' m =&gt; 'Iso'' 'SomeException' a       -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-307"></a><span class='hs-comment'>-- 'handling_' :: 'MonadCatch' m =&gt; 'Getter' 'SomeException' a     -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-308"></a><span class='hs-comment'>-- 'handling_' :: 'MonadCatch' m =&gt; 'Fold' 'SomeException' a       -&gt; m r -&gt; m r -&gt; m r</span>
<a name="line-309"></a><span class='hs-comment'>-- @</span>
<a name="line-310"></a><span class='hs-definition'>handling_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadCatch</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Getting</span> <span class='hs-layout'>(</span><span class='hs-conid'>First</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span>
<a name="line-311"></a><span class='hs-definition'>handling_</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-varid'>catching_</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-312"></a><span class='hs-comment'>{-# INLINE handling_ #-}</span>
<a name="line-313"></a>
<a name="line-314"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-315"></a><span class='hs-comment'>-- Trying</span>
<a name="line-316"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-317"></a>
<a name="line-318"></a><a name="trying"></a><span class='hs-comment'>-- | A variant of 'Control.Exception.try' that takes a 'Prism' (or any 'Fold') to select which</span>
<a name="line-319"></a><span class='hs-comment'>-- exceptions are caught (c.f. 'Control.Exception.tryJust', 'Control.Exception.catchJust'). If the</span>
<a name="line-320"></a><span class='hs-comment'>-- 'Exception' does not match the predicate, it is re-thrown.</span>
<a name="line-321"></a><span class='hs-comment'>--</span>
<a name="line-322"></a><span class='hs-comment'>-- @</span>
<a name="line-323"></a><span class='hs-comment'>-- 'trying' :: 'MonadCatch' m =&gt; 'Prism''     'SomeException' a -&gt; m r -&gt; m ('Either' a r)</span>
<a name="line-324"></a><span class='hs-comment'>-- 'trying' :: 'MonadCatch' m =&gt; 'Lens''      'SomeException' a -&gt; m r -&gt; m ('Either' a r)</span>
<a name="line-325"></a><span class='hs-comment'>-- 'trying' :: 'MonadCatch' m =&gt; 'Traversal'' 'SomeException' a -&gt; m r -&gt; m ('Either' a r)</span>
<a name="line-326"></a><span class='hs-comment'>-- 'trying' :: 'MonadCatch' m =&gt; 'Iso''       'SomeException' a -&gt; m r -&gt; m ('Either' a r)</span>
<a name="line-327"></a><span class='hs-comment'>-- 'trying' :: 'MonadCatch' m =&gt; 'Getter'     'SomeException' a -&gt; m r -&gt; m ('Either' a r)</span>
<a name="line-328"></a><span class='hs-comment'>-- 'trying' :: 'MonadCatch' m =&gt; 'Fold'       'SomeException' a -&gt; m r -&gt; m ('Either' a r)</span>
<a name="line-329"></a><span class='hs-comment'>-- @</span>
<a name="line-330"></a><span class='hs-definition'>trying</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadCatch</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Getting</span> <span class='hs-layout'>(</span><span class='hs-conid'>First</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Either</span> <span class='hs-varid'>a</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-331"></a><span class='hs-definition'>trying</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tryJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-332"></a><span class='hs-comment'>{-# INLINE trying #-}</span>
<a name="line-333"></a>
<a name="line-334"></a><a name="trying_"></a><span class='hs-comment'>-- | A version of 'trying' that discards the specific exception thrown.</span>
<a name="line-335"></a><span class='hs-comment'>--</span>
<a name="line-336"></a><span class='hs-comment'>-- @</span>
<a name="line-337"></a><span class='hs-comment'>-- 'trying_' :: 'MonadCatch' m =&gt; 'Prism''     'SomeException' a -&gt; m r -&gt; m (Maybe r)</span>
<a name="line-338"></a><span class='hs-comment'>-- 'trying_' :: 'MonadCatch' m =&gt; 'Lens''      'SomeException' a -&gt; m r -&gt; m (Maybe r)</span>
<a name="line-339"></a><span class='hs-comment'>-- 'trying_' :: 'MonadCatch' m =&gt; 'Traversal'' 'SomeException' a -&gt; m r -&gt; m (Maybe r)</span>
<a name="line-340"></a><span class='hs-comment'>-- 'trying_' :: 'MonadCatch' m =&gt; 'Iso''       'SomeException' a -&gt; m r -&gt; m (Maybe r)</span>
<a name="line-341"></a><span class='hs-comment'>-- 'trying_' :: 'MonadCatch' m =&gt; 'Getter'     'SomeException' a -&gt; m r -&gt; m (Maybe r)</span>
<a name="line-342"></a><span class='hs-comment'>-- 'trying_' :: 'MonadCatch' m =&gt; 'Fold'       'SomeException' a -&gt; m r -&gt; m (Maybe r)</span>
<a name="line-343"></a><span class='hs-comment'>-- @</span>
<a name="line-344"></a><span class='hs-definition'>trying_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadCatch</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Getting</span> <span class='hs-layout'>(</span><span class='hs-conid'>First</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-345"></a><span class='hs-definition'>trying_</span> <span class='hs-varid'>l</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>preview</span> <span class='hs-sel'>_Right</span> <span class='hs-varop'>`liftM`</span> <span class='hs-varid'>trying</span> <span class='hs-varid'>l</span> <span class='hs-varid'>m</span>
<a name="line-346"></a><span class='hs-comment'>{-# INLINE trying_ #-}</span>
<a name="line-347"></a>
<a name="line-348"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-349"></a><span class='hs-comment'>-- Throwing</span>
<a name="line-350"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-351"></a>
<a name="line-352"></a><a name="throwing"></a><span class='hs-comment'>-- | Throw an 'Exception' described by a 'Prism'. Exceptions may be thrown from</span>
<a name="line-353"></a><span class='hs-comment'>-- purely functional code, but may only be caught within the 'IO' 'Monad'.</span>
<a name="line-354"></a><span class='hs-comment'>--</span>
<a name="line-355"></a><span class='hs-comment'>-- @</span>
<a name="line-356"></a><span class='hs-comment'>-- 'throwing' l ≡ 'reviews' l 'throw'</span>
<a name="line-357"></a><span class='hs-comment'>-- @</span>
<a name="line-358"></a><span class='hs-comment'>--</span>
<a name="line-359"></a><span class='hs-comment'>-- @</span>
<a name="line-360"></a><span class='hs-comment'>-- 'throwing' :: 'Prism'' 'SomeException' t -&gt; t -&gt; r</span>
<a name="line-361"></a><span class='hs-comment'>-- 'throwing' :: 'Iso'' 'SomeException' t   -&gt; t -&gt; r</span>
<a name="line-362"></a><span class='hs-comment'>-- @</span>
<a name="line-363"></a><span class='hs-definition'>throwing</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AReview</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>r</span>
<a name="line-364"></a><span class='hs-definition'>throwing</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reviews</span> <span class='hs-varid'>l</span> <span class='hs-conid'>Exception</span><span class='hs-varop'>.</span><span class='hs-varid'>throw</span>
<a name="line-365"></a><span class='hs-comment'>{-# INLINE throwing #-}</span>
<a name="line-366"></a>
<a name="line-367"></a><a name="throwing_"></a><span class='hs-comment'>-- | Similar to 'throwing' but specialised for the common case of</span>
<a name="line-368"></a><span class='hs-comment'>--   error constructors with no arguments.</span>
<a name="line-369"></a><span class='hs-comment'>--</span>
<a name="line-370"></a><span class='hs-comment'>-- @</span>
<a name="line-371"></a><span class='hs-comment'>-- data MyError = Foo | Bar</span>
<a name="line-372"></a><span class='hs-comment'>-- makePrisms ''MyError</span>
<a name="line-373"></a><span class='hs-comment'>-- 'throwing_' _Foo :: 'MonadError' MyError m =&gt; m a</span>
<a name="line-374"></a><span class='hs-comment'>-- @</span>
<a name="line-375"></a><span class='hs-definition'>throwing_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AReview</span> <span class='hs-conid'>SomeException</span> <span class='hs-conid'>()</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>x</span>
<a name="line-376"></a><span class='hs-definition'>throwing_</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>throwing</span> <span class='hs-varid'>l</span> <span class='hs-conid'>()</span>
<a name="line-377"></a><span class='hs-comment'>{-# INLINE throwing_ #-}</span>
<a name="line-378"></a>
<a name="line-379"></a><a name="throwingM"></a><span class='hs-comment'>-- | A variant of 'throwing' that can only be used within the 'IO' 'Monad'</span>
<a name="line-380"></a><span class='hs-comment'>-- (or any other 'MonadCatch' instance) to throw an 'Exception' described</span>
<a name="line-381"></a><span class='hs-comment'>-- by a 'Prism'.</span>
<a name="line-382"></a><span class='hs-comment'>--</span>
<a name="line-383"></a><span class='hs-comment'>-- Although 'throwingM' has a type that is a specialization of the type of</span>
<a name="line-384"></a><span class='hs-comment'>-- 'throwing', the two functions are subtly different:</span>
<a name="line-385"></a><span class='hs-comment'>--</span>
<a name="line-386"></a><span class='hs-comment'>-- @</span>
<a name="line-387"></a><span class='hs-comment'>-- 'throwing' l e \`seq\` x  ≡ 'throwing' e</span>
<a name="line-388"></a><span class='hs-comment'>-- 'throwingM' l e \`seq\` x ≡ x</span>
<a name="line-389"></a><span class='hs-comment'>-- @</span>
<a name="line-390"></a><span class='hs-comment'>--</span>
<a name="line-391"></a><span class='hs-comment'>-- The first example will cause the 'Exception' @e@ to be raised, whereas the</span>
<a name="line-392"></a><span class='hs-comment'>-- second one won't. In fact, 'throwingM' will only cause an 'Exception' to</span>
<a name="line-393"></a><span class='hs-comment'>-- be raised when it is used within the 'MonadCatch' instance. The 'throwingM'</span>
<a name="line-394"></a><span class='hs-comment'>-- variant should be used in preference to 'throwing' to raise an 'Exception'</span>
<a name="line-395"></a><span class='hs-comment'>-- within the 'Monad' because it guarantees ordering with respect to other</span>
<a name="line-396"></a><span class='hs-comment'>-- monadic operations, whereas 'throwing' does not.</span>
<a name="line-397"></a><span class='hs-comment'>--</span>
<a name="line-398"></a><span class='hs-comment'>-- @</span>
<a name="line-399"></a><span class='hs-comment'>-- 'throwingM' l ≡ 'reviews' l 'CatchIO.throw'</span>
<a name="line-400"></a><span class='hs-comment'>-- @</span>
<a name="line-401"></a><span class='hs-comment'>--</span>
<a name="line-402"></a><span class='hs-comment'>-- @</span>
<a name="line-403"></a><span class='hs-comment'>-- 'throwingM' :: 'MonadThrow' m =&gt; 'Prism'' 'SomeException' t -&gt; t -&gt; m r</span>
<a name="line-404"></a><span class='hs-comment'>-- 'throwingM' :: 'MonadThrow' m =&gt; 'Iso'' 'SomeException' t   -&gt; t -&gt; m r</span>
<a name="line-405"></a><span class='hs-comment'>-- @</span>
<a name="line-406"></a><span class='hs-definition'>throwingM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadThrow</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>AReview</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>r</span>
<a name="line-407"></a><span class='hs-definition'>throwingM</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reviews</span> <span class='hs-varid'>l</span> <span class='hs-varid'>throwM</span>
<a name="line-408"></a><span class='hs-comment'>{-# INLINE throwingM #-}</span>
<a name="line-409"></a>
<a name="line-410"></a><a name="throwingTo"></a><span class='hs-comment'>-- | 'throwingTo' raises an 'Exception' specified by a 'Prism' in the target thread.</span>
<a name="line-411"></a><span class='hs-comment'>--</span>
<a name="line-412"></a><span class='hs-comment'>-- @</span>
<a name="line-413"></a><span class='hs-comment'>-- 'throwingTo' thread l ≡ 'reviews' l ('throwTo' thread)</span>
<a name="line-414"></a><span class='hs-comment'>-- @</span>
<a name="line-415"></a><span class='hs-comment'>--</span>
<a name="line-416"></a><span class='hs-comment'>-- @</span>
<a name="line-417"></a><span class='hs-comment'>-- 'throwingTo' :: 'ThreadId' -&gt; 'Prism'' 'SomeException' t -&gt; t -&gt; m a</span>
<a name="line-418"></a><span class='hs-comment'>-- 'throwingTo' :: 'ThreadId' -&gt; 'Iso'' 'SomeException' t   -&gt; t -&gt; m a</span>
<a name="line-419"></a><span class='hs-comment'>-- @</span>
<a name="line-420"></a><span class='hs-definition'>throwingTo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ThreadId</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>AReview</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-421"></a><span class='hs-definition'>throwingTo</span> <span class='hs-varid'>tid</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reviews</span> <span class='hs-varid'>l</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftIO</span> <span class='hs-varop'>.</span> <span class='hs-varid'>throwTo</span> <span class='hs-varid'>tid</span><span class='hs-layout'>)</span>
<a name="line-422"></a><span class='hs-comment'>{-# INLINE throwingTo #-}</span>
<a name="line-423"></a>
<a name="line-424"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-425"></a><span class='hs-comment'>-- Mapping</span>
<a name="line-426"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-427"></a>
<a name="line-428"></a><a name="mappedException"></a><span class='hs-comment'>-- | This 'Setter' can be used to purely map over the 'Exception's an</span>
<a name="line-429"></a><span class='hs-comment'>-- arbitrary expression might throw; it is a variant of 'mapException' in</span>
<a name="line-430"></a><span class='hs-comment'>-- the same way that 'mapped' is a variant of 'fmap'.</span>
<a name="line-431"></a><span class='hs-comment'>--</span>
<a name="line-432"></a><span class='hs-comment'>-- &gt; 'mapException' ≡ 'over' 'mappedException'</span>
<a name="line-433"></a><span class='hs-comment'>--</span>
<a name="line-434"></a><span class='hs-comment'>-- This view that every Haskell expression can be regarded as carrying a bag</span>
<a name="line-435"></a><span class='hs-comment'>-- of 'Exception's is detailed in “A Semantics for Imprecise Exceptions” by</span>
<a name="line-436"></a><span class='hs-comment'>-- Peyton Jones &amp; al. at PLDI ’99.</span>
<a name="line-437"></a><span class='hs-comment'>--</span>
<a name="line-438"></a><span class='hs-comment'>-- The following maps failed assertions to arithmetic overflow:</span>
<a name="line-439"></a><span class='hs-comment'>--</span>
<a name="line-440"></a><span class='hs-comment'>-- &gt;&gt;&gt; handling _Overflow (\_ -&gt; return "caught") $ assert False (return "uncaught") &amp; mappedException %~ \ (AssertionFailed _) -&gt; Overflow</span>
<a name="line-441"></a><span class='hs-comment'>-- "caught"</span>
<a name="line-442"></a><span class='hs-definition'>mappedException</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exception</span> <span class='hs-varid'>e</span><span class='hs-layout'>,</span> <span class='hs-conid'>Exception</span> <span class='hs-varid'>e'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Setter</span> <span class='hs-varid'>s</span> <span class='hs-varid'>s</span> <span class='hs-varid'>e</span> <span class='hs-varid'>e'</span>
<a name="line-443"></a><span class='hs-definition'>mappedException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sets</span> <span class='hs-varid'>mapException</span>
<a name="line-444"></a><span class='hs-comment'>{-# INLINE mappedException #-}</span>
<a name="line-445"></a>
<a name="line-446"></a><a name="mappedException'"></a><span class='hs-comment'>-- | This is a type restricted version of 'mappedException', which avoids</span>
<a name="line-447"></a><span class='hs-comment'>-- the type ambiguity in the input 'Exception' when using 'set'.</span>
<a name="line-448"></a><span class='hs-comment'>--</span>
<a name="line-449"></a><span class='hs-comment'>-- The following maps any exception to arithmetic overflow:</span>
<a name="line-450"></a><span class='hs-comment'>--</span>
<a name="line-451"></a><span class='hs-comment'>-- &gt;&gt;&gt; handling _Overflow (\_ -&gt; return "caught") $ assert False (return "uncaught") &amp; mappedException' .~ Overflow</span>
<a name="line-452"></a><span class='hs-comment'>-- "caught"</span>
<a name="line-453"></a><span class='hs-definition'>mappedException'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Exception</span> <span class='hs-varid'>e'</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Setter</span> <span class='hs-varid'>s</span> <span class='hs-varid'>s</span> <span class='hs-conid'>SomeException</span> <span class='hs-varid'>e'</span>
<a name="line-454"></a><span class='hs-definition'>mappedException'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mappedException</span>
<a name="line-455"></a><span class='hs-comment'>{-# INLINE mappedException' #-}</span>
<a name="line-456"></a>
<a name="line-457"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-458"></a><span class='hs-comment'>-- IOException</span>
<a name="line-459"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-460"></a>
<a name="line-461"></a><a name="AsIOException"></a><span class='hs-comment'>-- | Exceptions that occur in the 'IO' 'Monad'. An 'IOException' records a</span>
<a name="line-462"></a><a name="AsIOException"></a><span class='hs-comment'>-- more specific error type, a descriptive string and maybe the handle that was</span>
<a name="line-463"></a><a name="AsIOException"></a><span class='hs-comment'>-- used when the error was flagged.</span>
<a name="line-464"></a><a name="AsIOException"></a><span class='hs-comment'>--</span>
<a name="line-465"></a><a name="AsIOException"></a><span class='hs-comment'>-- Due to their richer structure relative to other exceptions, these have</span>
<a name="line-466"></a><a name="AsIOException"></a><span class='hs-comment'>-- a more carefully overloaded signature.</span>
<a name="line-467"></a><a name="AsIOException"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsIOException</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-468"></a>  <span class='hs-comment'>-- | Unfortunately the name 'ioException' is taken by @base@ for</span>
<a name="line-469"></a>  <span class='hs-comment'>-- throwing IOExceptions.</span>
<a name="line-470"></a>  <span class='hs-comment'>--</span>
<a name="line-471"></a>  <span class='hs-comment'>-- @</span>
<a name="line-472"></a>  <span class='hs-comment'>-- '_IOException' :: 'Prism'' 'IOException' 'IOException'</span>
<a name="line-473"></a>  <span class='hs-comment'>-- '_IOException' :: 'Prism'' 'SomeException' 'IOException'</span>
<a name="line-474"></a>  <span class='hs-comment'>-- @</span>
<a name="line-475"></a>  <span class='hs-comment'>--</span>
<a name="line-476"></a>  <span class='hs-comment'>-- Many combinators for working with an 'IOException' are available</span>
<a name="line-477"></a>  <span class='hs-comment'>-- in "System.IO.Error.Lens".</span>
<a name="line-478"></a>  <span class='hs-sel'>_IOException</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>IOException</span>
<a name="line-479"></a>
<a name="line-480"></a><a name="instance%20AsIOException%20IOException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsIOException</span> <span class='hs-conid'>IOException</span> <span class='hs-keyword'>where</span>
<a name="line-481"></a>  <span class='hs-sel'>_IOException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-482"></a>  <span class='hs-comment'>{-# INLINE _IOException #-}</span>
<a name="line-483"></a>
<a name="line-484"></a><a name="instance%20AsIOException%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsIOException</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-485"></a>  <span class='hs-sel'>_IOException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span>
<a name="line-486"></a>  <span class='hs-comment'>{-# INLINE _IOException #-}</span>
<a name="line-487"></a>
<a name="line-488"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-489"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>IOException_</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_IOException</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-490"></a>  <span class='hs-conid'>IOException_</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_IOException</span> <span class='hs-varid'>a</span>
<a name="line-491"></a><span class='hs-cpp'>#endif</span>
<a name="line-492"></a>
<a name="line-493"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-494"></a><span class='hs-comment'>-- ArithException</span>
<a name="line-495"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-496"></a>
<a name="line-497"></a><a name="AsArithException"></a><span class='hs-comment'>-- | Arithmetic exceptions.</span>
<a name="line-498"></a><a name="AsArithException"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-499"></a>  <span class='hs-comment'>-- '_ArithException' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-500"></a>  <span class='hs-comment'>-- '_ArithException' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-501"></a>  <span class='hs-sel'>_ArithException</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ArithException</span>
<a name="line-502"></a>
<a name="line-503"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-504"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>ArithException_</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_ArithException</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-505"></a>  <span class='hs-conid'>ArithException_</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varid'>a</span>
<a name="line-506"></a><span class='hs-cpp'>#endif</span>
<a name="line-507"></a>
<a name="line-508"></a><a name="instance%20AsArithException%20ArithException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsArithException</span> <span class='hs-conid'>ArithException</span> <span class='hs-keyword'>where</span>
<a name="line-509"></a>  <span class='hs-sel'>_ArithException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-510"></a>  <span class='hs-comment'>{-# INLINE _ArithException #-}</span>
<a name="line-511"></a>
<a name="line-512"></a><a name="instance%20AsArithException%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsArithException</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-513"></a>  <span class='hs-sel'>_ArithException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span>
<a name="line-514"></a>  <span class='hs-comment'>{-# INLINE _ArithException #-}</span>
<a name="line-515"></a>
<a name="line-516"></a><span class='hs-comment'>-- | Handle arithmetic '_Overflow'.</span>
<a name="line-517"></a><span class='hs-comment'>--</span>
<a name="line-518"></a><span class='hs-comment'>-- @</span>
<a name="line-519"></a><span class='hs-comment'>-- '_Overflow' ≡ '_ArithException' '.' '_Overflow'</span>
<a name="line-520"></a><span class='hs-comment'>-- @</span>
<a name="line-521"></a><span class='hs-comment'>--</span>
<a name="line-522"></a><span class='hs-comment'>-- @</span>
<a name="line-523"></a><span class='hs-comment'>-- '_Overflow' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-524"></a><span class='hs-comment'>-- '_Overflow' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-525"></a><span class='hs-comment'>-- @</span>
<a name="line-526"></a><span class='hs-sel'>_Overflow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-527"></a><span class='hs-sel'>_Overflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>Overflow</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-528"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>Overflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-529"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-530"></a><span class='hs-comment'>{-# INLINE _Overflow #-}</span>
<a name="line-531"></a>
<a name="line-532"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-533"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Overflow_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_Overflow</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-534"></a>  <span class='hs-conid'>Overflow_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_Overflow</span> <span class='hs-conid'>()</span>
<a name="line-535"></a><span class='hs-cpp'>#endif</span>
<a name="line-536"></a>
<a name="line-537"></a><span class='hs-comment'>-- | Handle arithmetic '_Underflow'.</span>
<a name="line-538"></a><span class='hs-comment'>--</span>
<a name="line-539"></a><span class='hs-comment'>-- @</span>
<a name="line-540"></a><span class='hs-comment'>-- '_Underflow' ≡ '_ArithException' '.' '_Underflow'</span>
<a name="line-541"></a><span class='hs-comment'>-- @</span>
<a name="line-542"></a><span class='hs-comment'>--</span>
<a name="line-543"></a><span class='hs-comment'>-- @</span>
<a name="line-544"></a><span class='hs-comment'>-- '_Underflow' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-545"></a><span class='hs-comment'>-- '_Underflow' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-546"></a><span class='hs-comment'>-- @</span>
<a name="line-547"></a><span class='hs-sel'>_Underflow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-548"></a><span class='hs-sel'>_Underflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>Underflow</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-549"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>Underflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-550"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-551"></a><span class='hs-comment'>{-# INLINE _Underflow #-}</span>
<a name="line-552"></a>
<a name="line-553"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-554"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Underflow_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_Underflow</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-555"></a>  <span class='hs-conid'>Underflow_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_Underflow</span> <span class='hs-conid'>()</span>
<a name="line-556"></a><span class='hs-cpp'>#endif</span>
<a name="line-557"></a>
<a name="line-558"></a><span class='hs-comment'>-- | Handle arithmetic loss of precision.</span>
<a name="line-559"></a><span class='hs-comment'>--</span>
<a name="line-560"></a><span class='hs-comment'>-- @</span>
<a name="line-561"></a><span class='hs-comment'>-- '_LossOfPrecision' ≡ '_ArithException' '.' '_LossOfPrecision'</span>
<a name="line-562"></a><span class='hs-comment'>-- @</span>
<a name="line-563"></a><span class='hs-comment'>--</span>
<a name="line-564"></a><span class='hs-comment'>-- @</span>
<a name="line-565"></a><span class='hs-comment'>-- '_LossOfPrecision' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-566"></a><span class='hs-comment'>-- '_LossOfPrecision' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-567"></a><span class='hs-comment'>-- @</span>
<a name="line-568"></a><span class='hs-sel'>_LossOfPrecision</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-569"></a><span class='hs-sel'>_LossOfPrecision</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>LossOfPrecision</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-570"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>LossOfPrecision</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-571"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-572"></a><span class='hs-comment'>{-# INLINE _LossOfPrecision #-}</span>
<a name="line-573"></a>
<a name="line-574"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-575"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>LossOfPrecision_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_LossOfPrecision</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-576"></a>  <span class='hs-conid'>LossOfPrecision_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_LossOfPrecision</span> <span class='hs-conid'>()</span>
<a name="line-577"></a><span class='hs-cpp'>#endif</span>
<a name="line-578"></a>
<a name="line-579"></a><span class='hs-comment'>-- | Handle division by zero.</span>
<a name="line-580"></a><span class='hs-comment'>--</span>
<a name="line-581"></a><span class='hs-comment'>-- @</span>
<a name="line-582"></a><span class='hs-comment'>-- '_DivideByZero' ≡ '_ArithException' '.' '_DivideByZero'</span>
<a name="line-583"></a><span class='hs-comment'>-- @</span>
<a name="line-584"></a><span class='hs-comment'>--</span>
<a name="line-585"></a><span class='hs-comment'>-- @</span>
<a name="line-586"></a><span class='hs-comment'>-- '_DivideByZero' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-587"></a><span class='hs-comment'>-- '_DivideByZero' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-588"></a><span class='hs-comment'>-- @</span>
<a name="line-589"></a><span class='hs-sel'>_DivideByZero</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-590"></a><span class='hs-sel'>_DivideByZero</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>DivideByZero</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-591"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>DivideByZero</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-592"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-593"></a><span class='hs-comment'>{-# INLINE _DivideByZero #-}</span>
<a name="line-594"></a>
<a name="line-595"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-596"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>DivideByZero_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_DivideByZero</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-597"></a>  <span class='hs-conid'>DivideByZero_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_DivideByZero</span> <span class='hs-conid'>()</span>
<a name="line-598"></a><span class='hs-cpp'>#endif</span>
<a name="line-599"></a>
<a name="line-600"></a><span class='hs-comment'>-- | Handle exceptional _Denormalized floating pure.</span>
<a name="line-601"></a><span class='hs-comment'>--</span>
<a name="line-602"></a><span class='hs-comment'>-- @</span>
<a name="line-603"></a><span class='hs-comment'>-- '_Denormal' ≡ '_ArithException' '.' '_Denormal'</span>
<a name="line-604"></a><span class='hs-comment'>-- @</span>
<a name="line-605"></a><span class='hs-comment'>--</span>
<a name="line-606"></a><span class='hs-comment'>-- @</span>
<a name="line-607"></a><span class='hs-comment'>-- '_Denormal' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-608"></a><span class='hs-comment'>-- '_Denormal' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-609"></a><span class='hs-comment'>-- @</span>
<a name="line-610"></a><span class='hs-sel'>_Denormal</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-611"></a><span class='hs-sel'>_Denormal</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>Denormal</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-612"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>Denormal</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-613"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-614"></a><span class='hs-comment'>{-# INLINE _Denormal #-}</span>
<a name="line-615"></a>
<a name="line-616"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-617"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Denormal_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_Denormal</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-618"></a>  <span class='hs-conid'>Denormal_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_Denormal</span> <span class='hs-conid'>()</span>
<a name="line-619"></a><span class='hs-cpp'>#endif</span>
<a name="line-620"></a>
<a name="line-621"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,6,0)</span>
<a name="line-622"></a><span class='hs-comment'>-- | Added in @base@ 4.6 in response to this libraries discussion:</span>
<a name="line-623"></a><span class='hs-comment'>--</span>
<a name="line-624"></a><span class='hs-comment'>-- &lt;<a href="http://haskell.1045720.n5.nabble.com/Data-Ratio-and-exceptions-td5711246.html">http://haskell.1045720.n5.nabble.com/Data-Ratio-and-exceptions-td5711246.html</a>&gt;</span>
<a name="line-625"></a><span class='hs-comment'>--</span>
<a name="line-626"></a><span class='hs-comment'>-- @</span>
<a name="line-627"></a><span class='hs-comment'>-- '_RatioZeroDenominator' ≡ '_ArithException' '.' '_RatioZeroDenominator'</span>
<a name="line-628"></a><span class='hs-comment'>-- @</span>
<a name="line-629"></a><span class='hs-comment'>--</span>
<a name="line-630"></a><span class='hs-comment'>-- @</span>
<a name="line-631"></a><span class='hs-comment'>-- '_RatioZeroDenominator' :: 'Prism'' 'ArithException' 'ArithException'</span>
<a name="line-632"></a><span class='hs-comment'>-- '_RatioZeroDenominator' :: 'Prism'' 'SomeException'  'ArithException'</span>
<a name="line-633"></a><span class='hs-comment'>-- @</span>
<a name="line-634"></a><span class='hs-sel'>_RatioZeroDenominator</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArithException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-635"></a><span class='hs-sel'>_RatioZeroDenominator</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArithException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>RatioZeroDenominator</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-636"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>RatioZeroDenominator</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-637"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-638"></a><span class='hs-comment'>{-# INLINE _RatioZeroDenominator #-}</span>
<a name="line-639"></a>
<a name="line-640"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-641"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>RatioZeroDenominator_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_RatioZeroDenominator</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-642"></a>  <span class='hs-conid'>RatioZeroDenominator_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_RatioZeroDenominator</span> <span class='hs-conid'>()</span>
<a name="line-643"></a><span class='hs-cpp'>#endif</span>
<a name="line-644"></a>
<a name="line-645"></a><span class='hs-cpp'>#endif</span>
<a name="line-646"></a>
<a name="line-647"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-648"></a><span class='hs-comment'>-- ArrayException</span>
<a name="line-649"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-650"></a>
<a name="line-651"></a><a name="AsArrayException"></a><span class='hs-comment'>-- | Exceptions generated by array operations.</span>
<a name="line-652"></a><a name="AsArrayException"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsArrayException</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-653"></a>  <span class='hs-comment'>-- | Extract information about an 'ArrayException'.</span>
<a name="line-654"></a>  <span class='hs-comment'>--</span>
<a name="line-655"></a>  <span class='hs-comment'>-- @</span>
<a name="line-656"></a>  <span class='hs-comment'>-- '_ArrayException' :: 'Prism'' 'ArrayException' 'ArrayException'</span>
<a name="line-657"></a>  <span class='hs-comment'>-- '_ArrayException' :: 'Prism'' 'SomeException'  'ArrayException'</span>
<a name="line-658"></a>  <span class='hs-comment'>-- @</span>
<a name="line-659"></a>  <span class='hs-sel'>_ArrayException</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>ArrayException</span>
<a name="line-660"></a>
<a name="line-661"></a><a name="instance%20AsArrayException%20ArrayException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsArrayException</span> <span class='hs-conid'>ArrayException</span> <span class='hs-keyword'>where</span>
<a name="line-662"></a>  <span class='hs-sel'>_ArrayException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-663"></a>  <span class='hs-comment'>{-# INLINE _ArrayException #-}</span>
<a name="line-664"></a>
<a name="line-665"></a><a name="instance%20AsArrayException%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsArrayException</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-666"></a>  <span class='hs-sel'>_ArrayException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span>
<a name="line-667"></a>  <span class='hs-comment'>{-# INLINE _ArrayException #-}</span>
<a name="line-668"></a>
<a name="line-669"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-670"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>ArrayException_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_ArrayException</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-671"></a>  <span class='hs-conid'>ArrayException_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_ArrayException</span> <span class='hs-varid'>e</span>
<a name="line-672"></a><span class='hs-cpp'>#endif</span>
<a name="line-673"></a>
<a name="line-674"></a><span class='hs-comment'>-- | An attempt was made to index an array outside its declared bounds.</span>
<a name="line-675"></a><span class='hs-comment'>--</span>
<a name="line-676"></a><span class='hs-comment'>-- @</span>
<a name="line-677"></a><span class='hs-comment'>-- '_IndexOutOfBounds' ≡ '_ArrayException' '.' '_IndexOutOfBounds'</span>
<a name="line-678"></a><span class='hs-comment'>-- @</span>
<a name="line-679"></a><span class='hs-comment'>--</span>
<a name="line-680"></a><span class='hs-comment'>-- @</span>
<a name="line-681"></a><span class='hs-comment'>-- '_IndexOutOfBounds' :: 'Prism'' 'ArrayException' 'String'</span>
<a name="line-682"></a><span class='hs-comment'>-- '_IndexOutOfBounds' :: 'Prism'' 'SomeException'  'String'</span>
<a name="line-683"></a><span class='hs-comment'>-- @</span>
<a name="line-684"></a><span class='hs-sel'>_IndexOutOfBounds</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArrayException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-685"></a><span class='hs-sel'>_IndexOutOfBounds</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArrayException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-conid'>IndexOutOfBounds</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-686"></a>  <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-conid'>IndexOutOfBounds</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>r</span>
<a name="line-687"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>                    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-688"></a><span class='hs-comment'>{-# INLINE _IndexOutOfBounds #-}</span>
<a name="line-689"></a>
<a name="line-690"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-691"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>IndexOutOfBounds_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_IndexOutOfBounds</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-692"></a>  <span class='hs-conid'>IndexOutOfBounds_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_IndexOutOfBounds</span> <span class='hs-varid'>e</span>
<a name="line-693"></a><span class='hs-cpp'>#endif</span>
<a name="line-694"></a>
<a name="line-695"></a><span class='hs-comment'>-- | An attempt was made to evaluate an element of an array that had not been initialized.</span>
<a name="line-696"></a><span class='hs-comment'>--</span>
<a name="line-697"></a><span class='hs-comment'>-- @</span>
<a name="line-698"></a><span class='hs-comment'>-- '_UndefinedElement' ≡ '_ArrayException' '.' '_UndefinedElement'</span>
<a name="line-699"></a><span class='hs-comment'>-- @</span>
<a name="line-700"></a><span class='hs-comment'>--</span>
<a name="line-701"></a><span class='hs-comment'>-- @</span>
<a name="line-702"></a><span class='hs-comment'>-- '_UndefinedElement' :: 'Prism'' 'ArrayException' 'String'</span>
<a name="line-703"></a><span class='hs-comment'>-- '_UndefinedElement' :: 'Prism'' 'SomeException'  'String'</span>
<a name="line-704"></a><span class='hs-comment'>-- @</span>
<a name="line-705"></a><span class='hs-sel'>_UndefinedElement</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsArrayException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-706"></a><span class='hs-sel'>_UndefinedElement</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_ArrayException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-conid'>UndefinedElement</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-707"></a>  <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-conid'>UndefinedElement</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>r</span>
<a name="line-708"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>                    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-709"></a><span class='hs-comment'>{-# INLINE _UndefinedElement #-}</span>
<a name="line-710"></a>
<a name="line-711"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-712"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>UndefinedElement_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_UndefinedElement</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-713"></a>  <span class='hs-conid'>UndefinedElement_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_UndefinedElement</span> <span class='hs-varid'>e</span>
<a name="line-714"></a><span class='hs-cpp'>#endif</span>
<a name="line-715"></a>
<a name="line-716"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-717"></a><span class='hs-comment'>-- AssertionFailed</span>
<a name="line-718"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-719"></a>
<a name="line-720"></a><a name="AsAssertionFailed"></a><span class='hs-comment'>-- | 'assert' was applied to 'Prelude.False'.</span>
<a name="line-721"></a><a name="AsAssertionFailed"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsAssertionFailed</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-722"></a>  <span class='hs-comment'>-- | This 'Exception' contains provides information about what assertion failed in the 'String'.</span>
<a name="line-723"></a>  <span class='hs-comment'>--</span>
<a name="line-724"></a>  <span class='hs-comment'>-- &gt;&gt;&gt; handling _AssertionFailed (\ xs -&gt; "caught" &lt;$ guard ("&lt;interactive&gt;" `isInfixOf` xs) ) $ assert False (return "uncaught")</span>
<a name="line-725"></a>  <span class='hs-comment'>-- "caught"</span>
<a name="line-726"></a>  <span class='hs-comment'>--</span>
<a name="line-727"></a>  <span class='hs-comment'>-- @</span>
<a name="line-728"></a>  <span class='hs-comment'>-- '_AssertionFailed' :: 'Prism'' 'AssertionFailed' 'String'</span>
<a name="line-729"></a>  <span class='hs-comment'>-- '_AssertionFailed' :: 'Prism'' 'SomeException'   'String'</span>
<a name="line-730"></a>  <span class='hs-comment'>-- @</span>
<a name="line-731"></a>  <span class='hs-sel'>_AssertionFailed</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-732"></a>
<a name="line-733"></a><a name="instance%20AsAssertionFailed%20AssertionFailed"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsAssertionFailed</span> <span class='hs-conid'>AssertionFailed</span> <span class='hs-keyword'>where</span>
<a name="line-734"></a>  <span class='hs-sel'>_AssertionFailed</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>AssertionFailed</span>
<a name="line-735"></a>  <span class='hs-comment'>{-# INLINE _AssertionFailed #-}</span>
<a name="line-736"></a>
<a name="line-737"></a><a name="instance%20AsAssertionFailed%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsAssertionFailed</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-738"></a>  <span class='hs-sel'>_AssertionFailed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>AssertionFailed</span>
<a name="line-739"></a>  <span class='hs-comment'>{-# INLINE _AssertionFailed #-}</span>
<a name="line-740"></a>
<a name="line-741"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-742"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>AssertionFailed_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_AssertionFailed</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-743"></a>  <span class='hs-conid'>AssertionFailed_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_AssertionFailed</span> <span class='hs-varid'>e</span>
<a name="line-744"></a><span class='hs-cpp'>#endif</span>
<a name="line-745"></a>
<a name="line-746"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-747"></a><span class='hs-comment'>-- AsyncException</span>
<a name="line-748"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-749"></a>
<a name="line-750"></a><a name="AsAsyncException"></a><span class='hs-comment'>-- | Asynchronous exceptions.</span>
<a name="line-751"></a><a name="AsAsyncException"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-752"></a>  <span class='hs-comment'>-- | There are several types of 'AsyncException'.</span>
<a name="line-753"></a>  <span class='hs-comment'>--</span>
<a name="line-754"></a>  <span class='hs-comment'>-- @</span>
<a name="line-755"></a>  <span class='hs-comment'>-- '_AsyncException' :: 'Equality'' 'AsyncException' 'AsyncException'</span>
<a name="line-756"></a>  <span class='hs-comment'>-- '_AsyncException' :: 'Prism''    'SomeException'  'AsyncException'</span>
<a name="line-757"></a>  <span class='hs-comment'>-- @</span>
<a name="line-758"></a>  <span class='hs-sel'>_AsyncException</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>AsyncException</span>
<a name="line-759"></a>
<a name="line-760"></a><a name="instance%20AsAsyncException%20AsyncException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-conid'>AsyncException</span> <span class='hs-keyword'>where</span>
<a name="line-761"></a>  <span class='hs-sel'>_AsyncException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-762"></a>  <span class='hs-comment'>{-# INLINE _AsyncException #-}</span>
<a name="line-763"></a>
<a name="line-764"></a><a name="instance%20AsAsyncException%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-765"></a>  <span class='hs-sel'>_AsyncException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span>
<a name="line-766"></a>  <span class='hs-comment'>{-# INLINE _AsyncException #-}</span>
<a name="line-767"></a>
<a name="line-768"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-769"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>AsyncException_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_AsyncException</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-770"></a>  <span class='hs-conid'>AsyncException_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_AsyncException</span> <span class='hs-varid'>e</span>
<a name="line-771"></a><span class='hs-cpp'>#endif</span>
<a name="line-772"></a>
<a name="line-773"></a><span class='hs-comment'>-- | The current thread's stack exceeded its limit. Since an 'Exception' has</span>
<a name="line-774"></a><span class='hs-comment'>-- been raised, the thread's stack will certainly be below its limit again,</span>
<a name="line-775"></a><span class='hs-comment'>-- but the programmer should take remedial action immediately.</span>
<a name="line-776"></a><span class='hs-comment'>--</span>
<a name="line-777"></a><span class='hs-comment'>-- @</span>
<a name="line-778"></a><span class='hs-comment'>-- '_StackOverflow' :: 'Prism'' 'AsyncException' ()</span>
<a name="line-779"></a><span class='hs-comment'>-- '_StackOverflow' :: 'Prism'' 'SomeException'  ()</span>
<a name="line-780"></a><span class='hs-comment'>-- @</span>
<a name="line-781"></a><span class='hs-sel'>_StackOverflow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-782"></a><span class='hs-sel'>_StackOverflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_AsyncException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>StackOverflow</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-783"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>StackOverflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-784"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>             <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-785"></a><span class='hs-comment'>{-# INLINE _StackOverflow #-}</span>
<a name="line-786"></a>
<a name="line-787"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-788"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>StackOverflow_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_StackOverflow</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-789"></a>  <span class='hs-conid'>StackOverflow_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_StackOverflow</span> <span class='hs-conid'>()</span>
<a name="line-790"></a><span class='hs-cpp'>#endif</span>
<a name="line-791"></a>
<a name="line-792"></a><span class='hs-comment'>-- | The program's heap is reaching its limit, and the program should take action</span>
<a name="line-793"></a><span class='hs-comment'>-- to reduce the amount of live data it has.</span>
<a name="line-794"></a><span class='hs-comment'>--</span>
<a name="line-795"></a><span class='hs-comment'>-- Notes:</span>
<a name="line-796"></a><span class='hs-comment'>--</span>
<a name="line-797"></a><span class='hs-comment'>-- * It is undefined which thread receives this 'Exception'.</span>
<a name="line-798"></a><span class='hs-comment'>--</span>
<a name="line-799"></a><span class='hs-comment'>-- * GHC currently does not throw 'HeapOverflow' exceptions.</span>
<a name="line-800"></a><span class='hs-comment'>--</span>
<a name="line-801"></a><span class='hs-comment'>-- @</span>
<a name="line-802"></a><span class='hs-comment'>-- '_HeapOverflow' :: 'Prism'' 'AsyncException' ()</span>
<a name="line-803"></a><span class='hs-comment'>-- '_HeapOverflow' :: 'Prism'' 'SomeException'  ()</span>
<a name="line-804"></a><span class='hs-comment'>-- @</span>
<a name="line-805"></a><span class='hs-sel'>_HeapOverflow</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-806"></a><span class='hs-sel'>_HeapOverflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_AsyncException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>HeapOverflow</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-807"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>HeapOverflow</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-808"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-809"></a><span class='hs-comment'>{-# INLINE _HeapOverflow #-}</span>
<a name="line-810"></a>
<a name="line-811"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-812"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>HeapOverflow_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_HeapOverflow</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-813"></a>  <span class='hs-conid'>HeapOverflow_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_HeapOverflow</span> <span class='hs-conid'>()</span>
<a name="line-814"></a><span class='hs-cpp'>#endif</span>
<a name="line-815"></a>
<a name="line-816"></a><span class='hs-comment'>-- | This 'Exception' is raised by another thread calling</span>
<a name="line-817"></a><span class='hs-comment'>-- 'Control.Concurrent.killThread', or by the system if it needs to terminate</span>
<a name="line-818"></a><span class='hs-comment'>-- the thread for some reason.</span>
<a name="line-819"></a><span class='hs-comment'>--</span>
<a name="line-820"></a><span class='hs-comment'>-- @</span>
<a name="line-821"></a><span class='hs-comment'>-- '_ThreadKilled' :: 'Prism'' 'AsyncException' ()</span>
<a name="line-822"></a><span class='hs-comment'>-- '_ThreadKilled' :: 'Prism'' 'SomeException'  ()</span>
<a name="line-823"></a><span class='hs-comment'>-- @</span>
<a name="line-824"></a><span class='hs-sel'>_ThreadKilled</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-825"></a><span class='hs-sel'>_ThreadKilled</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_AsyncException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>ThreadKilled</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-826"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>ThreadKilled</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-827"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-828"></a><span class='hs-comment'>{-# INLINE _ThreadKilled #-}</span>
<a name="line-829"></a>
<a name="line-830"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-831"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>ThreadKilled_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_ThreadKilled</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-832"></a>  <span class='hs-conid'>ThreadKilled_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_ThreadKilled</span> <span class='hs-conid'>()</span>
<a name="line-833"></a><span class='hs-cpp'>#endif</span>
<a name="line-834"></a>
<a name="line-835"></a><span class='hs-comment'>-- | This 'Exception' is raised by default in the main thread of the program when</span>
<a name="line-836"></a><span class='hs-comment'>-- the user requests to terminate the program via the usual mechanism(s)</span>
<a name="line-837"></a><span class='hs-comment'>-- (/e.g./ Control-C in the console).</span>
<a name="line-838"></a><span class='hs-comment'>--</span>
<a name="line-839"></a><span class='hs-comment'>-- @</span>
<a name="line-840"></a><span class='hs-comment'>-- '_UserInterrupt' :: 'Prism'' 'AsyncException' ()</span>
<a name="line-841"></a><span class='hs-comment'>-- '_UserInterrupt' :: 'Prism'' 'SomeException'  ()</span>
<a name="line-842"></a><span class='hs-comment'>-- @</span>
<a name="line-843"></a><span class='hs-sel'>_UserInterrupt</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AsAsyncException</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-844"></a><span class='hs-sel'>_UserInterrupt</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_AsyncException</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dimap</span> <span class='hs-varid'>seta</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>id</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>right'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>rmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>UserInterrupt</span> <span class='hs-varop'>&lt;$</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-845"></a>  <span class='hs-varid'>seta</span> <span class='hs-conid'>UserInterrupt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span>
<a name="line-846"></a>  <span class='hs-varid'>seta</span> <span class='hs-varid'>t</span>             <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span>  <span class='hs-layout'>(</span><span class='hs-varid'>pure</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-847"></a><span class='hs-comment'>{-# INLINE _UserInterrupt #-}</span>
<a name="line-848"></a>
<a name="line-849"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-850"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>UserInterrupt_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_UserInterrupt</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-851"></a>  <span class='hs-conid'>UserInterrupt_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_UserInterrupt</span> <span class='hs-conid'>()</span>
<a name="line-852"></a><span class='hs-cpp'>#endif</span>
<a name="line-853"></a>
<a name="line-854"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-855"></a><span class='hs-comment'>-- AsyncException</span>
<a name="line-856"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-857"></a>
<a name="line-858"></a><a name="AsNonTermination"></a><span class='hs-comment'>-- | Thrown when the runtime system detects that the computation is guaranteed</span>
<a name="line-859"></a><a name="AsNonTermination"></a><span class='hs-comment'>-- not to terminate. Note that there is no guarantee that the runtime system</span>
<a name="line-860"></a><a name="AsNonTermination"></a><span class='hs-comment'>-- will notice whether any given computation is guaranteed to terminate or not.</span>
<a name="line-861"></a><a name="AsNonTermination"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsNonTermination</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-862"></a>  <span class='hs-comment'>-- | There is no additional information carried in a 'NonTermination' 'Exception'.</span>
<a name="line-863"></a>  <span class='hs-comment'>--</span>
<a name="line-864"></a>  <span class='hs-comment'>-- @</span>
<a name="line-865"></a>  <span class='hs-comment'>-- '_NonTermination' :: 'Prism'' 'NonTermination' ()</span>
<a name="line-866"></a>  <span class='hs-comment'>-- '_NonTermination' :: 'Prism'' 'SomeException'  ()</span>
<a name="line-867"></a>  <span class='hs-comment'>-- @</span>
<a name="line-868"></a>  <span class='hs-sel'>_NonTermination</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-869"></a>
<a name="line-870"></a><a name="instance%20AsNonTermination%20NonTermination"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsNonTermination</span> <span class='hs-conid'>NonTermination</span> <span class='hs-keyword'>where</span>
<a name="line-871"></a>  <span class='hs-sel'>_NonTermination</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>NonTermination</span>
<a name="line-872"></a>  <span class='hs-comment'>{-# INLINE _NonTermination #-}</span>
<a name="line-873"></a>
<a name="line-874"></a><a name="instance%20AsNonTermination%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsNonTermination</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-875"></a>  <span class='hs-sel'>_NonTermination</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>NonTermination</span>
<a name="line-876"></a>  <span class='hs-comment'>{-# INLINE _NonTermination #-}</span>
<a name="line-877"></a>
<a name="line-878"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-879"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>NonTermination_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_NonTermination</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-880"></a>  <span class='hs-conid'>NonTermination_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_NonTermination</span> <span class='hs-conid'>()</span>
<a name="line-881"></a><span class='hs-cpp'>#endif</span>
<a name="line-882"></a>
<a name="line-883"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-884"></a><span class='hs-comment'>-- NestedAtomically</span>
<a name="line-885"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-886"></a>
<a name="line-887"></a><a name="AsNestedAtomically"></a><span class='hs-comment'>-- | Thrown when the program attempts to call atomically, from the</span>
<a name="line-888"></a><a name="AsNestedAtomically"></a><span class='hs-comment'>-- 'Control.Monad.STM' package, inside another call to atomically.</span>
<a name="line-889"></a><a name="AsNestedAtomically"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsNestedAtomically</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-890"></a>  <span class='hs-comment'>-- | There is no additional information carried in a 'NestedAtomically' 'Exception'.</span>
<a name="line-891"></a>  <span class='hs-comment'>--</span>
<a name="line-892"></a>  <span class='hs-comment'>-- @</span>
<a name="line-893"></a>  <span class='hs-comment'>-- '_NestedAtomically' :: 'Prism'' 'NestedAtomically' ()</span>
<a name="line-894"></a>  <span class='hs-comment'>-- '_NestedAtomically' :: 'Prism'' 'SomeException'    ()</span>
<a name="line-895"></a>  <span class='hs-comment'>-- @</span>
<a name="line-896"></a>  <span class='hs-sel'>_NestedAtomically</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-897"></a>
<a name="line-898"></a><a name="instance%20AsNestedAtomically%20NestedAtomically"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsNestedAtomically</span> <span class='hs-conid'>NestedAtomically</span> <span class='hs-keyword'>where</span>
<a name="line-899"></a>  <span class='hs-sel'>_NestedAtomically</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>NestedAtomically</span>
<a name="line-900"></a>  <span class='hs-comment'>{-# INLINE _NestedAtomically #-}</span>
<a name="line-901"></a>
<a name="line-902"></a><a name="instance%20AsNestedAtomically%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsNestedAtomically</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-903"></a>  <span class='hs-sel'>_NestedAtomically</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>NestedAtomically</span>
<a name="line-904"></a>  <span class='hs-comment'>{-# INLINE _NestedAtomically #-}</span>
<a name="line-905"></a>
<a name="line-906"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-907"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>NestedAtomically_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_NestedAtomically</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-908"></a>  <span class='hs-conid'>NestedAtomically_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_NestedAtomically</span> <span class='hs-conid'>()</span>
<a name="line-909"></a><span class='hs-cpp'>#endif</span>
<a name="line-910"></a>
<a name="line-911"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-912"></a><span class='hs-comment'>-- BlockedIndefinitelyOnMVar</span>
<a name="line-913"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-914"></a>
<a name="line-915"></a><a name="AsBlockedIndefinitelyOnMVar"></a><span class='hs-comment'>-- | The thread is blocked on an 'Control.Concurrent.MVar.MVar', but there</span>
<a name="line-916"></a><a name="AsBlockedIndefinitelyOnMVar"></a><span class='hs-comment'>-- are no other references to the 'Control.Concurrent.MVar.MVar' so it can't</span>
<a name="line-917"></a><a name="AsBlockedIndefinitelyOnMVar"></a><span class='hs-comment'>-- ever continue.</span>
<a name="line-918"></a><a name="AsBlockedIndefinitelyOnMVar"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsBlockedIndefinitelyOnMVar</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-919"></a>  <span class='hs-comment'>-- | There is no additional information carried in a 'BlockedIndefinitelyOnMVar' 'Exception'.</span>
<a name="line-920"></a>  <span class='hs-comment'>--</span>
<a name="line-921"></a>  <span class='hs-comment'>-- @</span>
<a name="line-922"></a>  <span class='hs-comment'>-- '_BlockedIndefinitelyOnMVar' :: 'Prism'' 'BlockedIndefinitelyOnMVar' ()</span>
<a name="line-923"></a>  <span class='hs-comment'>-- '_BlockedIndefinitelyOnMVar' :: 'Prism'' 'SomeException'             ()</span>
<a name="line-924"></a>  <span class='hs-comment'>-- @</span>
<a name="line-925"></a>  <span class='hs-sel'>_BlockedIndefinitelyOnMVar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-926"></a>
<a name="line-927"></a><a name="instance%20AsBlockedIndefinitelyOnMVar%20BlockedIndefinitelyOnMVar"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsBlockedIndefinitelyOnMVar</span> <span class='hs-conid'>BlockedIndefinitelyOnMVar</span> <span class='hs-keyword'>where</span>
<a name="line-928"></a>  <span class='hs-sel'>_BlockedIndefinitelyOnMVar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>BlockedIndefinitelyOnMVar</span>
<a name="line-929"></a>  <span class='hs-comment'>{-# INLINE _BlockedIndefinitelyOnMVar #-}</span>
<a name="line-930"></a>
<a name="line-931"></a><a name="instance%20AsBlockedIndefinitelyOnMVar%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsBlockedIndefinitelyOnMVar</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-932"></a>  <span class='hs-sel'>_BlockedIndefinitelyOnMVar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>BlockedIndefinitelyOnMVar</span>
<a name="line-933"></a>  <span class='hs-comment'>{-# INLINE _BlockedIndefinitelyOnMVar #-}</span>
<a name="line-934"></a>
<a name="line-935"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-936"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>BlockedIndefinitelyOnMVar_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_BlockedIndefinitelyOnMVar</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-937"></a>  <span class='hs-conid'>BlockedIndefinitelyOnMVar_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_BlockedIndefinitelyOnMVar</span> <span class='hs-conid'>()</span>
<a name="line-938"></a><span class='hs-cpp'>#endif</span>
<a name="line-939"></a>
<a name="line-940"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-941"></a><span class='hs-comment'>-- BlockedIndefinitelyOnSTM</span>
<a name="line-942"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-943"></a>
<a name="line-944"></a><a name="AsBlockedIndefinitelyOnSTM"></a><span class='hs-comment'>-- | The thread is waiting to retry an 'Control.Monad.STM.STM' transaction,</span>
<a name="line-945"></a><a name="AsBlockedIndefinitelyOnSTM"></a><span class='hs-comment'>-- but there are no other references to any TVars involved, so it can't ever</span>
<a name="line-946"></a><a name="AsBlockedIndefinitelyOnSTM"></a><span class='hs-comment'>-- continue.</span>
<a name="line-947"></a><a name="AsBlockedIndefinitelyOnSTM"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsBlockedIndefinitelyOnSTM</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-948"></a>  <span class='hs-comment'>-- | There is no additional information carried in a 'BlockedIndefinitelyOnSTM' 'Exception'.</span>
<a name="line-949"></a>  <span class='hs-comment'>--</span>
<a name="line-950"></a>  <span class='hs-comment'>-- @</span>
<a name="line-951"></a>  <span class='hs-comment'>-- '_BlockedIndefinitelyOnSTM' :: 'Prism'' 'BlockedIndefinitelyOnSTM' ()</span>
<a name="line-952"></a>  <span class='hs-comment'>-- '_BlockedIndefinitelyOnSTM' :: 'Prism'' 'SomeException'            ()</span>
<a name="line-953"></a>  <span class='hs-comment'>-- @</span>
<a name="line-954"></a>  <span class='hs-sel'>_BlockedIndefinitelyOnSTM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-955"></a>
<a name="line-956"></a><a name="instance%20AsBlockedIndefinitelyOnSTM%20BlockedIndefinitelyOnSTM"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsBlockedIndefinitelyOnSTM</span> <span class='hs-conid'>BlockedIndefinitelyOnSTM</span> <span class='hs-keyword'>where</span>
<a name="line-957"></a>  <span class='hs-sel'>_BlockedIndefinitelyOnSTM</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>BlockedIndefinitelyOnSTM</span>
<a name="line-958"></a>  <span class='hs-comment'>{-# INLINE _BlockedIndefinitelyOnSTM #-}</span>
<a name="line-959"></a>
<a name="line-960"></a><a name="instance%20AsBlockedIndefinitelyOnSTM%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsBlockedIndefinitelyOnSTM</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-961"></a>  <span class='hs-sel'>_BlockedIndefinitelyOnSTM</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>BlockedIndefinitelyOnSTM</span>
<a name="line-962"></a>  <span class='hs-comment'>{-# INLINE _BlockedIndefinitelyOnSTM #-}</span>
<a name="line-963"></a>
<a name="line-964"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-965"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>BlockedIndefinitelyOnSTM_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_BlockedIndefinitelyOnSTM</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-966"></a>  <span class='hs-conid'>BlockedIndefinitelyOnSTM_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_BlockedIndefinitelyOnSTM</span> <span class='hs-conid'>()</span>
<a name="line-967"></a><span class='hs-cpp'>#endif</span>
<a name="line-968"></a>
<a name="line-969"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-970"></a><span class='hs-comment'>-- Deadlock</span>
<a name="line-971"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-972"></a>
<a name="line-973"></a><a name="AsDeadlock"></a><span class='hs-comment'>-- | There are no runnable threads, so the program is deadlocked. The</span>
<a name="line-974"></a><a name="AsDeadlock"></a><span class='hs-comment'>-- 'Deadlock' 'Exception' is raised in the main thread only.</span>
<a name="line-975"></a><a name="AsDeadlock"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsDeadlock</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-976"></a>  <span class='hs-comment'>-- | There is no information carried in a 'Deadlock' 'Exception'.</span>
<a name="line-977"></a>  <span class='hs-comment'>--</span>
<a name="line-978"></a>  <span class='hs-comment'>-- @</span>
<a name="line-979"></a>  <span class='hs-comment'>-- '_Deadlock' :: 'Prism'' 'Deadlock'      ()</span>
<a name="line-980"></a>  <span class='hs-comment'>-- '_Deadlock' :: 'Prism'' 'SomeException' ()</span>
<a name="line-981"></a>  <span class='hs-comment'>-- @</span>
<a name="line-982"></a>  <span class='hs-sel'>_Deadlock</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-983"></a>
<a name="line-984"></a><a name="instance%20AsDeadlock%20Deadlock"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsDeadlock</span> <span class='hs-conid'>Deadlock</span> <span class='hs-keyword'>where</span>
<a name="line-985"></a>  <span class='hs-sel'>_Deadlock</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>Deadlock</span>
<a name="line-986"></a>  <span class='hs-comment'>{-# INLINE _Deadlock #-}</span>
<a name="line-987"></a>
<a name="line-988"></a><a name="instance%20AsDeadlock%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsDeadlock</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-989"></a>  <span class='hs-sel'>_Deadlock</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>Deadlock</span>
<a name="line-990"></a>  <span class='hs-comment'>{-# INLINE _Deadlock #-}</span>
<a name="line-991"></a>
<a name="line-992"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-993"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>Deadlock_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_Deadlock</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-994"></a>  <span class='hs-conid'>Deadlock_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_Deadlock</span> <span class='hs-conid'>()</span>
<a name="line-995"></a><span class='hs-cpp'>#endif</span>
<a name="line-996"></a>
<a name="line-997"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-998"></a><span class='hs-comment'>-- NoMethodError</span>
<a name="line-999"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1000"></a>
<a name="line-1001"></a><a name="AsNoMethodError"></a><span class='hs-comment'>-- | A class method without a definition (neither a default definition,</span>
<a name="line-1002"></a><a name="AsNoMethodError"></a><span class='hs-comment'>-- nor a definition in the appropriate instance) was called.</span>
<a name="line-1003"></a><a name="AsNoMethodError"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsNoMethodError</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1004"></a>  <span class='hs-comment'>-- | Extract a description of the missing method.</span>
<a name="line-1005"></a>  <span class='hs-comment'>--</span>
<a name="line-1006"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1007"></a>  <span class='hs-comment'>-- '_NoMethodError' :: 'Prism'' 'NoMethodError' 'String'</span>
<a name="line-1008"></a>  <span class='hs-comment'>-- '_NoMethodError' :: 'Prism'' 'SomeException' 'String'</span>
<a name="line-1009"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1010"></a>  <span class='hs-sel'>_NoMethodError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1011"></a>
<a name="line-1012"></a><a name="instance%20AsNoMethodError%20NoMethodError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsNoMethodError</span> <span class='hs-conid'>NoMethodError</span> <span class='hs-keyword'>where</span>
<a name="line-1013"></a>  <span class='hs-sel'>_NoMethodError</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>NoMethodError</span>
<a name="line-1014"></a>  <span class='hs-comment'>{-# INLINE _NoMethodError #-}</span>
<a name="line-1015"></a>
<a name="line-1016"></a><a name="instance%20AsNoMethodError%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsNoMethodError</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1017"></a>  <span class='hs-sel'>_NoMethodError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>NoMethodError</span>
<a name="line-1018"></a>  <span class='hs-comment'>{-# INLINE _NoMethodError #-}</span>
<a name="line-1019"></a>
<a name="line-1020"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1021"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>NoMethodError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_NoMethodError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1022"></a>  <span class='hs-conid'>NoMethodError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_NoMethodError</span> <span class='hs-varid'>e</span>
<a name="line-1023"></a><span class='hs-cpp'>#endif</span>
<a name="line-1024"></a>
<a name="line-1025"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1026"></a><span class='hs-comment'>-- PatternMatchFail</span>
<a name="line-1027"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1028"></a>
<a name="line-1029"></a><a name="AsPatternMatchFail"></a><span class='hs-comment'>-- | A pattern match failed.</span>
<a name="line-1030"></a><a name="AsPatternMatchFail"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsPatternMatchFail</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1031"></a>  <span class='hs-comment'>-- | Information about the source location of the pattern.</span>
<a name="line-1032"></a>  <span class='hs-comment'>--</span>
<a name="line-1033"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1034"></a>  <span class='hs-comment'>-- '_PatternMatchFail' :: 'Prism'' 'PatternMatchFail' 'String'</span>
<a name="line-1035"></a>  <span class='hs-comment'>-- '_PatternMatchFail' :: 'Prism'' 'SomeException'    'String'</span>
<a name="line-1036"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1037"></a>  <span class='hs-sel'>_PatternMatchFail</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1038"></a>
<a name="line-1039"></a><a name="instance%20AsPatternMatchFail%20PatternMatchFail"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsPatternMatchFail</span> <span class='hs-conid'>PatternMatchFail</span> <span class='hs-keyword'>where</span>
<a name="line-1040"></a>  <span class='hs-sel'>_PatternMatchFail</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>PatternMatchFail</span>
<a name="line-1041"></a>  <span class='hs-comment'>{-# INLINE _PatternMatchFail #-}</span>
<a name="line-1042"></a>
<a name="line-1043"></a><a name="instance%20AsPatternMatchFail%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsPatternMatchFail</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1044"></a>  <span class='hs-sel'>_PatternMatchFail</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>PatternMatchFail</span>
<a name="line-1045"></a>  <span class='hs-comment'>{-# INLINE _PatternMatchFail #-}</span>
<a name="line-1046"></a>
<a name="line-1047"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1048"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>PatternMatchFail_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_PatternMatchFail</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1049"></a>  <span class='hs-conid'>PatternMatchFail_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_PatternMatchFail</span> <span class='hs-varid'>e</span>
<a name="line-1050"></a><span class='hs-cpp'>#endif</span>
<a name="line-1051"></a>
<a name="line-1052"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1053"></a><span class='hs-comment'>-- RecConError</span>
<a name="line-1054"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1055"></a>
<a name="line-1056"></a><a name="AsRecConError"></a><span class='hs-comment'>-- | An uninitialised record field was used.</span>
<a name="line-1057"></a><a name="AsRecConError"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsRecConError</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1058"></a>  <span class='hs-comment'>-- | Information about the source location where the record was</span>
<a name="line-1059"></a>  <span class='hs-comment'>-- constructed.</span>
<a name="line-1060"></a>  <span class='hs-comment'>--</span>
<a name="line-1061"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1062"></a>  <span class='hs-comment'>-- '_RecConError' :: 'Prism'' 'RecConError'   'String'</span>
<a name="line-1063"></a>  <span class='hs-comment'>-- '_RecConError' :: 'Prism'' 'SomeException' 'String'</span>
<a name="line-1064"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1065"></a>  <span class='hs-sel'>_RecConError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1066"></a>
<a name="line-1067"></a><a name="instance%20AsRecConError%20RecConError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsRecConError</span> <span class='hs-conid'>RecConError</span> <span class='hs-keyword'>where</span>
<a name="line-1068"></a>  <span class='hs-sel'>_RecConError</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>RecConError</span>
<a name="line-1069"></a>  <span class='hs-comment'>{-# INLINE _RecConError #-}</span>
<a name="line-1070"></a>
<a name="line-1071"></a><a name="instance%20AsRecConError%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsRecConError</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1072"></a>  <span class='hs-sel'>_RecConError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>RecConError</span>
<a name="line-1073"></a>  <span class='hs-comment'>{-# INLINE _RecConError #-}</span>
<a name="line-1074"></a>
<a name="line-1075"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1076"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>RecConError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_RecConError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1077"></a>  <span class='hs-conid'>RecConError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_RecConError</span> <span class='hs-varid'>e</span>
<a name="line-1078"></a><span class='hs-cpp'>#endif</span>
<a name="line-1079"></a>
<a name="line-1080"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1081"></a><span class='hs-comment'>-- RecSelError</span>
<a name="line-1082"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1083"></a>
<a name="line-1084"></a><a name="AsRecSelError"></a><span class='hs-comment'>-- | A record selector was applied to a constructor without the appropriate</span>
<a name="line-1085"></a><a name="AsRecSelError"></a><span class='hs-comment'>-- field. This can only happen with a datatype with multiple constructors,</span>
<a name="line-1086"></a><a name="AsRecSelError"></a><span class='hs-comment'>-- where some fields are in one constructor but not another.</span>
<a name="line-1087"></a><a name="AsRecSelError"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsRecSelError</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1088"></a>  <span class='hs-comment'>-- | Information about the source location where the record selection occurred.</span>
<a name="line-1089"></a>  <span class='hs-sel'>_RecSelError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1090"></a>
<a name="line-1091"></a><a name="instance%20AsRecSelError%20RecSelError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsRecSelError</span> <span class='hs-conid'>RecSelError</span> <span class='hs-keyword'>where</span>
<a name="line-1092"></a>  <span class='hs-sel'>_RecSelError</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>RecSelError</span>
<a name="line-1093"></a>  <span class='hs-comment'>{-# INLINE _RecSelError #-}</span>
<a name="line-1094"></a>
<a name="line-1095"></a><a name="instance%20AsRecSelError%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsRecSelError</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1096"></a>  <span class='hs-sel'>_RecSelError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>RecSelError</span>
<a name="line-1097"></a>  <span class='hs-comment'>{-# INLINE _RecSelError #-}</span>
<a name="line-1098"></a>
<a name="line-1099"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1100"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>RecSelError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_RecSelError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1101"></a>  <span class='hs-conid'>RecSelError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_RecSelError</span> <span class='hs-varid'>e</span>
<a name="line-1102"></a><span class='hs-cpp'>#endif</span>
<a name="line-1103"></a>
<a name="line-1104"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1105"></a><span class='hs-comment'>-- RecUpdError</span>
<a name="line-1106"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1107"></a>
<a name="line-1108"></a><a name="AsRecUpdError"></a><span class='hs-comment'>-- | A record update was performed on a constructor without the</span>
<a name="line-1109"></a><a name="AsRecUpdError"></a><span class='hs-comment'>-- appropriate field. This can only happen with a datatype with multiple</span>
<a name="line-1110"></a><a name="AsRecUpdError"></a><span class='hs-comment'>-- constructors, where some fields are in one constructor but not another.</span>
<a name="line-1111"></a><a name="AsRecUpdError"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsRecUpdError</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1112"></a>  <span class='hs-comment'>-- | Information about the source location where the record was updated.</span>
<a name="line-1113"></a>  <span class='hs-sel'>_RecUpdError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1114"></a>
<a name="line-1115"></a><a name="instance%20AsRecUpdError%20RecUpdError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsRecUpdError</span> <span class='hs-conid'>RecUpdError</span> <span class='hs-keyword'>where</span>
<a name="line-1116"></a>  <span class='hs-sel'>_RecUpdError</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>RecUpdError</span>
<a name="line-1117"></a>  <span class='hs-comment'>{-# INLINE _RecUpdError #-}</span>
<a name="line-1118"></a>
<a name="line-1119"></a><a name="instance%20AsRecUpdError%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsRecUpdError</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1120"></a>  <span class='hs-sel'>_RecUpdError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>RecUpdError</span>
<a name="line-1121"></a>  <span class='hs-comment'>{-# INLINE _RecUpdError #-}</span>
<a name="line-1122"></a>
<a name="line-1123"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1124"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>RecUpdError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_RecUpdError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1125"></a>  <span class='hs-conid'>RecUpdError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_RecUpdError</span> <span class='hs-varid'>e</span>
<a name="line-1126"></a><span class='hs-cpp'>#endif</span>
<a name="line-1127"></a>
<a name="line-1128"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1129"></a><span class='hs-comment'>-- ErrorCall</span>
<a name="line-1130"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1131"></a>
<a name="line-1132"></a><a name="AsErrorCall"></a><span class='hs-comment'>-- | This is thrown when the user calls 'Prelude.error'.</span>
<a name="line-1133"></a><a name="AsErrorCall"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsErrorCall</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1134"></a>  <span class='hs-comment'>-- | Retrieve the argument given to 'Prelude.error'.</span>
<a name="line-1135"></a>  <span class='hs-comment'>--</span>
<a name="line-1136"></a>  <span class='hs-comment'>-- 'ErrorCall' is isomorphic to a 'String'.</span>
<a name="line-1137"></a>  <span class='hs-comment'>--</span>
<a name="line-1138"></a>  <span class='hs-comment'>-- &gt;&gt;&gt; catching _ErrorCall (error "touch down!") return</span>
<a name="line-1139"></a>  <span class='hs-comment'>-- "touch down!"</span>
<a name="line-1140"></a>  <span class='hs-sel'>_ErrorCall</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1141"></a>
<a name="line-1142"></a><a name="instance%20AsErrorCall%20ErrorCall"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsErrorCall</span> <span class='hs-conid'>ErrorCall</span> <span class='hs-keyword'>where</span>
<a name="line-1143"></a>  <span class='hs-sel'>_ErrorCall</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>ErrorCall</span>
<a name="line-1144"></a>  <span class='hs-comment'>{-# INLINE _ErrorCall #-}</span>
<a name="line-1145"></a>
<a name="line-1146"></a><a name="instance%20AsErrorCall%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsErrorCall</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1147"></a>  <span class='hs-sel'>_ErrorCall</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>ErrorCall</span>
<a name="line-1148"></a>  <span class='hs-comment'>{-# INLINE _ErrorCall #-}</span>
<a name="line-1149"></a>
<a name="line-1150"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1151"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>ErrorCall_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_ErrorCall</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1152"></a>  <span class='hs-conid'>ErrorCall_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_ErrorCall</span> <span class='hs-varid'>e</span>
<a name="line-1153"></a><span class='hs-cpp'>#endif</span>
<a name="line-1154"></a>
<a name="line-1155"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,8,0)</span>
<a name="line-1156"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1157"></a><span class='hs-comment'>-- AllocationLimitExceeded</span>
<a name="line-1158"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1159"></a>
<a name="line-1160"></a><a name="AsAllocationLimitExceeded"></a><span class='hs-comment'>-- | This thread has exceeded its allocation limit.</span>
<a name="line-1161"></a><a name="AsAllocationLimitExceeded"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsAllocationLimitExceeded</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1162"></a>  <span class='hs-comment'>-- | There is no additional information carried in an</span>
<a name="line-1163"></a>  <span class='hs-comment'>-- 'AllocationLimitExceeded' 'Exception'.</span>
<a name="line-1164"></a>  <span class='hs-comment'>--</span>
<a name="line-1165"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1166"></a>  <span class='hs-comment'>-- '_AllocationLimitExceeded' :: 'Prism'' 'AllocationLimitExceeded' ()</span>
<a name="line-1167"></a>  <span class='hs-comment'>-- '_AllocationLimitExceeded' :: 'Prism'' 'SomeException'           ()</span>
<a name="line-1168"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1169"></a>  <span class='hs-sel'>_AllocationLimitExceeded</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-1170"></a>
<a name="line-1171"></a><a name="instance%20AsAllocationLimitExceeded%20AllocationLimitExceeded"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsAllocationLimitExceeded</span> <span class='hs-conid'>AllocationLimitExceeded</span> <span class='hs-keyword'>where</span>
<a name="line-1172"></a>  <span class='hs-sel'>_AllocationLimitExceeded</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>AllocationLimitExceeded</span>
<a name="line-1173"></a>  <span class='hs-comment'>{-# INLINE _AllocationLimitExceeded #-}</span>
<a name="line-1174"></a>
<a name="line-1175"></a><a name="instance%20AsAllocationLimitExceeded%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsAllocationLimitExceeded</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1176"></a>  <span class='hs-sel'>_AllocationLimitExceeded</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>AllocationLimitExceeded</span>
<a name="line-1177"></a>  <span class='hs-comment'>{-# INLINE _AllocationLimitExceeded #-}</span>
<a name="line-1178"></a>
<a name="line-1179"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>AllocationLimitExceeded_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_AllocationLimitExceeded</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1180"></a>  <span class='hs-conid'>AllocationLimitExceeded_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_AllocationLimitExceeded</span> <span class='hs-conid'>()</span>
<a name="line-1181"></a><span class='hs-cpp'>#endif</span>
<a name="line-1182"></a>
<a name="line-1183"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,9,0)</span>
<a name="line-1184"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1185"></a><span class='hs-comment'>-- TypeError</span>
<a name="line-1186"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1187"></a>
<a name="line-1188"></a><a name="AsTypeError"></a><span class='hs-comment'>-- | An expression that didn't typecheck during compile time was called.</span>
<a name="line-1189"></a><a name="AsTypeError"></a><span class='hs-comment'>-- This is only possible with @-fdefer-type-errors@.</span>
<a name="line-1190"></a><a name="AsTypeError"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsTypeError</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1191"></a>  <span class='hs-comment'>-- | Details about the failed type check.</span>
<a name="line-1192"></a>  <span class='hs-comment'>--</span>
<a name="line-1193"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1194"></a>  <span class='hs-comment'>-- '_TypeError' :: 'Prism'' 'TypeError'     ()</span>
<a name="line-1195"></a>  <span class='hs-comment'>-- '_TypeError' :: 'Prism'' 'SomeException' ()</span>
<a name="line-1196"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1197"></a>  <span class='hs-sel'>_TypeError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1198"></a>
<a name="line-1199"></a><a name="instance%20AsTypeError%20TypeError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsTypeError</span> <span class='hs-conid'>TypeError</span> <span class='hs-keyword'>where</span>
<a name="line-1200"></a>  <span class='hs-sel'>_TypeError</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>TypeError</span>
<a name="line-1201"></a>  <span class='hs-comment'>{-# INLINE _TypeError #-}</span>
<a name="line-1202"></a>
<a name="line-1203"></a><a name="instance%20AsTypeError%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsTypeError</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1204"></a>  <span class='hs-sel'>_TypeError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>TypeError</span>
<a name="line-1205"></a>  <span class='hs-comment'>{-# INLINE _TypeError #-}</span>
<a name="line-1206"></a>
<a name="line-1207"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>TypeError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_TypeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1208"></a>  <span class='hs-conid'>TypeError_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_TypeError</span> <span class='hs-varid'>e</span>
<a name="line-1209"></a><span class='hs-cpp'>#endif</span>
<a name="line-1210"></a>
<a name="line-1211"></a><span class='hs-cpp'>#if MIN_VERSION_base(4,10,0)</span>
<a name="line-1212"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1213"></a><span class='hs-comment'>-- CompactionFailed</span>
<a name="line-1214"></a><span class='hs-comment'>----------------------------------------------------------------------------</span>
<a name="line-1215"></a>
<a name="line-1216"></a><a name="AsCompactionFailed"></a><span class='hs-comment'>-- | Compaction found an object that cannot be compacted.</span>
<a name="line-1217"></a><a name="AsCompactionFailed"></a><span class='hs-comment'>-- Functions cannot be compacted, nor can mutable objects or pinned objects.</span>
<a name="line-1218"></a><a name="AsCompactionFailed"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsCompactionFailed</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1219"></a>  <span class='hs-comment'>-- | Information about why a compaction failed.</span>
<a name="line-1220"></a>  <span class='hs-comment'>--</span>
<a name="line-1221"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1222"></a>  <span class='hs-comment'>-- '_CompactionFailed' :: 'Prism'' 'CompactionFailed' ()</span>
<a name="line-1223"></a>  <span class='hs-comment'>-- '_CompactionFailed' :: 'Prism'' 'SomeException'    ()</span>
<a name="line-1224"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1225"></a>  <span class='hs-sel'>_CompactionFailed</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>String</span>
<a name="line-1226"></a>
<a name="line-1227"></a><a name="instance%20AsCompactionFailed%20CompactionFailed"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsCompactionFailed</span> <span class='hs-conid'>CompactionFailed</span> <span class='hs-keyword'>where</span>
<a name="line-1228"></a>  <span class='hs-sel'>_CompactionFailed</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>CompactionFailed</span>
<a name="line-1229"></a>  <span class='hs-comment'>{-# INLINE _CompactionFailed #-}</span>
<a name="line-1230"></a>
<a name="line-1231"></a><a name="instance%20AsCompactionFailed%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsCompactionFailed</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1232"></a>  <span class='hs-sel'>_CompactionFailed</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-sel'>_Wrapping</span> <span class='hs-conid'>CompactionFailed</span>
<a name="line-1233"></a>  <span class='hs-comment'>{-# INLINE _CompactionFailed #-}</span>
<a name="line-1234"></a>
<a name="line-1235"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>CompactionFailed_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>preview</span> <span class='hs-sel'>_CompactionFailed</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1236"></a>  <span class='hs-conid'>CompactionFailed_</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_CompactionFailed</span> <span class='hs-varid'>e</span>
<a name="line-1237"></a><span class='hs-cpp'>#endif</span>
<a name="line-1238"></a>
<a name="line-1239"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-1240"></a><span class='hs-comment'>-- HandlingException</span>
<a name="line-1241"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-1242"></a>
<a name="line-1243"></a><a name="AsHandlingException"></a><span class='hs-comment'>-- | This 'Exception' is thrown by @lens@ when the user somehow manages to rethrow</span>
<a name="line-1244"></a><a name="AsHandlingException"></a><span class='hs-comment'>-- an internal 'HandlingException'.</span>
<a name="line-1245"></a><a name="AsHandlingException"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>AsHandlingException</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>where</span>
<a name="line-1246"></a>  <span class='hs-comment'>-- | There is no information carried in a 'HandlingException'.</span>
<a name="line-1247"></a>  <span class='hs-comment'>--</span>
<a name="line-1248"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1249"></a>  <span class='hs-comment'>-- '_HandlingException' :: 'Prism'' 'HandlingException' ()</span>
<a name="line-1250"></a>  <span class='hs-comment'>-- '_HandlingException' :: 'Prism'' 'SomeException'     ()</span>
<a name="line-1251"></a>  <span class='hs-comment'>-- @</span>
<a name="line-1252"></a>  <span class='hs-sel'>_HandlingException</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prism'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-1253"></a>
<a name="line-1254"></a><a name="instance%20AsHandlingException%20HandlingException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsHandlingException</span> <span class='hs-conid'>HandlingException</span> <span class='hs-keyword'>where</span>
<a name="line-1255"></a>  <span class='hs-sel'>_HandlingException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>trivial</span> <span class='hs-conid'>HandlingException</span>
<a name="line-1256"></a>  <span class='hs-comment'>{-# INLINE _HandlingException #-}</span>
<a name="line-1257"></a>
<a name="line-1258"></a><a name="instance%20AsHandlingException%20SomeException"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>AsHandlingException</span> <span class='hs-conid'>SomeException</span> <span class='hs-keyword'>where</span>
<a name="line-1259"></a>  <span class='hs-sel'>_HandlingException</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exception</span><span class='hs-varop'>.</span><span class='hs-varid'>trivial</span> <span class='hs-conid'>HandlingException</span>
<a name="line-1260"></a>  <span class='hs-comment'>{-# INLINE _HandlingException #-}</span>
<a name="line-1261"></a>
<a name="line-1262"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 710</span>
<a name="line-1263"></a><span class='hs-definition'>pattern</span> <span class='hs-conid'>HandlingException_</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-layout'>(</span><span class='hs-varid'>has</span> <span class='hs-sel'>_HandlingException</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-1264"></a>  <span class='hs-conid'>HandlingException_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>review</span> <span class='hs-sel'>_HandlingException</span> <span class='hs-conid'>()</span>
<a name="line-1265"></a><span class='hs-cpp'>#endif</span>
<a name="line-1266"></a>
<a name="line-1267"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-1268"></a><span class='hs-comment'>-- Helper Functions</span>
<a name="line-1269"></a><span class='hs-comment'>------------------------------------------------------------------------------</span>
<a name="line-1270"></a>
<a name="line-1271"></a><a name="trivial"></a><span class='hs-definition'>trivial</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Iso'</span> <span class='hs-varid'>t</span> <span class='hs-conid'>()</span>
<a name="line-1272"></a><span class='hs-definition'>trivial</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-conid'>()</span> <span class='hs-varop'>`iso`</span> <span class='hs-varid'>const</span> <span class='hs-varid'>t</span>
<a name="line-1273"></a>
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