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<h3>
Sebastian Graf pushed to branch wip/T18341
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
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<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d399d072b03a8bb5055d194983b83fdfdf3adf9b">d399d072</a></strong>
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<span>by Sebastian Graf</span>
<i>at 2020-08-31T18:20:16+02:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix the regression in T12227

By

  * Making constructor constraints `x <- K y` strict in `x` again
  * Bringing back `initPossibleMatches` in `addNotConCt`
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<h4>2 changed files:</h4>
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<a href="#ac0a6473a902628a18b3a470122e5cc1ce09de14">
compiler/GHC/HsToCore/PmCheck.hs
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<a href="#8d8e5922fde8bc19ffa2bc9cae6b6720abb88564">
compiler/GHC/HsToCore/PmCheck/Oracle.hs
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<h4>Changes:</h4>
<li id="ac0a6473a902628a18b3a470122e5cc1ce09de14">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d399d072b03a8bb5055d194983b83fdfdf3adf9b#ac0a6473a902628a18b3a470122e5cc1ce09de14"><strong>compiler/GHC/HsToCore/PmCheck.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -152,10 +152,14 @@ covCheckMatches</td>
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<pre style="margin: 0;"> <span id="LC152" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DsM</span> <span class="p">[(</span><span class="kt" style="color: #458; font-weight: 600;">Nablas</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">NonEmpty</span> <span class="kt" style="color: #458; font-weight: 600;">Nablas</span><span class="p">)]</span> <span class="c1" style="color: #998; font-style: italic;">-- ^ One covered 'Nablas' per Match and</span></span>
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<pre style="margin: 0;"> <span id="LC153" class="line" lang="haskell">                                     <span class="c1" style="color: #998; font-style: italic;">--   GRHS, for long distance info.</span></span>
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<pre style="margin: 0;"> <span id="LC154" class="line" lang="haskell"><span class="n" style="color: #333;">covCheckMatches</span> <span class="n" style="color: #333;">ctxt</span> <span class="n" style="color: #333;">vars</span> <span class="n" style="color: #333;">matches</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;">-<span id="LC155" class="line" lang="haskell">  <span class="n" style="color: #333;">missing</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getPmNablas</span></span>
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<pre style="margin: 0;">-<span id="LC156" class="line" lang="haskell">  <span class="n" style="color: #333;">tracePm</span> <span class="s" style="color: #d14;">"covCheckMatches {"</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ctxt</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">vars</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Matches:"</span><span class="p">])</span></span>
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<pre style="margin: 0;">-<span id="LC157" class="line" lang="haskell">                                    <span class="mi" style="color: #099;">2</span></span>
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<pre style="margin: 0;">-<span id="LC158" class="line" lang="haskell">                                    <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">matches</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">missing</span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC155" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- We have to force @missing@ before printing out the trace message,</span></span>
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<pre style="margin: 0;">+<span id="LC156" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- otherwise we get interleaved output from the solver. This function</span></span>
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<pre style="margin: 0;">+<span id="LC157" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- should be strict in @missing@ anyway!</span></span>
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<pre style="margin: 0;">+<span id="LC158" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">missing</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getPmNablas</span></span>
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<pre style="margin: 0;">+<span id="LC159" class="line" lang="haskell">  <span class="n" style="color: #333;">tracePm</span> <span class="s" style="color: #d14;">"covCheckMatches {"</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC160" class="line" lang="haskell">          <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ctxt</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">vars</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Matches:"</span><span class="p">])</span></span>
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<pre style="margin: 0;">+<span id="LC161" class="line" lang="haskell">               <span class="mi" style="color: #099;">2</span></span>
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<pre style="margin: 0;">+<span id="LC162" class="line" lang="haskell">               <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">matches</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">missing</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC163" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">case</span> <span class="kt" style="color: #458; font-weight: 600;">NE</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">nonEmpty</span> <span class="n" style="color: #333;">matches</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;"> <span id="LC164" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC165" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- This must be an -XEmptyCase. See Note [Checking EmptyCase]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -419,29 +423,27 @@ mkPmLetVar x y | x == y = []</td>
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<pre style="margin: 0;"> <span id="LC423" class="line" lang="haskell"><span class="n" style="color: #333;">mkPmLetVar</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">y</span>          <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">PmLet</span> <span class="n" style="color: #333;">x</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">y</span><span class="p">)]</span></span>
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<pre style="margin: 0;"> <span id="LC424" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC425" class="line" lang="haskell"><span class="cd">-- | ADT constructor pattern => no existentials, no local constraints</span></span>
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<pre style="margin: 0;">-<span id="LC422" class="line" lang="haskell"><span class="n" style="color: #333;">vanillaConGrds</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DataCon</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">GrdVec</span></span>
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<pre style="margin: 0;">-<span id="LC423" class="line" lang="haskell"><span class="n" style="color: #333;">vanillaConGrds</span> <span class="n" style="color: #333;">scrut</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">arg_ids</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;">-<span id="LC424" class="line" lang="haskell">  <span class="p">[</span> <span class="kt" style="color: #458; font-weight: 600;">PmBang</span> <span class="n" style="color: #333;">scrut</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>
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<pre style="margin: 0;">-<span id="LC425" class="line" lang="haskell">  <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="p">{</span> <span class="n" style="color: #333;">pm_id</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">scrut</span><span class="p">,</span> <span class="n" style="color: #333;">pm_con_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RealDataCon</span> <span class="n" style="color: #333;">con</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC426" class="line" lang="haskell">         <span class="p">,</span> <span class="n" style="color: #333;">pm_con_tvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span><span class="p">,</span> <span class="n" style="color: #333;">pm_con_dicts</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span><span class="p">,</span> <span class="n" style="color: #333;">pm_con_args</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arg_ids</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC427" class="line" lang="haskell">  <span class="p">]</span></span>
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<pre style="margin: 0;">+<span id="LC426" class="line" lang="haskell"><span class="n" style="color: #333;">vanillaConGrd</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DataCon</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">PmGrd</span></span>
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<pre style="margin: 0;">+<span id="LC427" class="line" lang="haskell"><span class="n" style="color: #333;">vanillaConGrd</span> <span class="n" style="color: #333;">scrut</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">arg_ids</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;">+<span id="LC428" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="p">{</span> <span class="n" style="color: #333;">pm_id</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">scrut</span><span class="p">,</span> <span class="n" style="color: #333;">pm_con_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RealDataCon</span> <span class="n" style="color: #333;">con</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC429" class="line" lang="haskell">        <span class="p">,</span> <span class="n" style="color: #333;">pm_con_tvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span><span class="p">,</span> <span class="n" style="color: #333;">pm_con_dicts</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span><span class="p">,</span> <span class="n" style="color: #333;">pm_con_args</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">arg_ids</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC430" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC431" class="line" lang="haskell"><span class="cd">-- | Creates a 'GrdVec' refining a match var of list type to a list,</span></span>
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<pre style="margin: 0;"> <span id="LC432" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- where list fields are matched against the incoming tagged 'GrdVec's.</span></span>
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<pre style="margin: 0;"> <span id="LC433" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- For example:</span></span>
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<pre style="margin: 0;"> <span id="LC434" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   @mkListGrds "a" "[(x, True <- x),(y, !y)]"@</span></span>
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<pre style="margin: 0;"> <span id="LC435" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- to</span></span>
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<pre style="margin: 0;">-<span id="LC434" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   @"[<span class="idiff left right">!a, (x:b) <- a, !x, True <- x, !b, (y:c) <- b, !y, !c</span>, [] <- c]"@</span></span>
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<pre style="margin: 0;">+<span id="LC436" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   @"[<span class="idiff left right">(x:b) <- a, True <- x, (y:c) <- b, !y</span>, [] <- c]"@</span></span>
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<pre style="margin: 0;"> <span id="LC437" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- where @b@ and @c@ are freshly allocated in @mkListGrds@ and @a@ is the match</span></span>
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<pre style="margin: 0;"> <span id="LC438" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- variable.</span></span>
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<pre style="margin: 0;"> <span id="LC439" class="line" lang="haskell"><span class="n" style="color: #333;">mkListGrds</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[(</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">GrdVec</span><span class="p">)]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DsM</span> <span class="kt" style="color: #458; font-weight: 600;">GrdVec</span></span>
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<pre style="margin: 0;"> <span id="LC440" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Order of guards matter] for why we need to intertwine guards</span></span>
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<pre style="margin: 0;"> <span id="LC441" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- on list elements.</span></span>
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<pre style="margin: 0;">-<span id="LC440" class="line" lang="haskell"><span class="n" style="color: #333;">mkListGrds</span> <span class="n" style="color: #333;">a</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span>                  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">vanillaConGrds</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">a</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nilDataCon</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">[]</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">+<span id="LC442" class="line" lang="haskell"><span class="n" style="color: #333;">mkListGrds</span> <span class="n" style="color: #333;">a</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span>                  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">[</span></span><span class="n" style="color: #333;"><span class="idiff">vanillaConGrd</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">a</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nilDataCon</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">[]</span></span><span class="p"><span class="idiff right">]</span></span></span>
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<pre style="margin: 0;"> <span id="LC443" class="line" lang="haskell"><span class="n" style="color: #333;">mkListGrds</span> <span class="n" style="color: #333;">a</span> <span class="p">((</span><span class="n" style="color: #333;">x</span><span class="p">,</span> <span class="n" style="color: #333;">head_grds</span><span class="p">)</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC444" class="line" lang="haskell">  <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mkPmId</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC445" class="line" lang="haskell">  <span class="n" style="color: #333;">tail_grds</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mkListGrds</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">xs</span></span>
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<pre style="margin: 0;">-<span id="LC444" class="line" lang="haskell">  <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vanillaConGrd<span class="idiff left">s</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">a</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">consDataCon</span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">b</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">++</span></span> <span class="n" style="color: #333;">head_grds</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">tail_grds</span></span>
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<pre style="margin: 0;">+<span id="LC446" class="line" lang="haskell">  <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vanillaConGrd</span><span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff">a</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">consDataCon</span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">b</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">:</span></span> <span class="n" style="color: #333;">head_grds</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">tail_grds</span></span>
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<pre style="margin: 0;"> <span id="LC447" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC448" class="line" lang="haskell"><span class="cd">-- | Create a 'GrdVec' refining a match variable to a 'PmLit'.</span></span>
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<pre style="margin: 0;"> <span id="LC449" class="line" lang="haskell"><span class="n" style="color: #333;">mkPmLitGrds</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">PmLit</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DsM</span> <span class="kt" style="color: #458; font-weight: 600;">GrdVec</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -457,13 +459,12 @@ mkPmLitGrds x (PmLit _ (PmLitString s)) = do</td>
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<pre style="margin: 0;"> <span id="LC459" class="line" lang="haskell">  <span class="n" style="color: #333;">char_grdss</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">zipWithM</span> <span class="n" style="color: #333;">mk_char_lit</span> <span class="n" style="color: #333;">vars</span> <span class="p">(</span><span class="n" style="color: #333;">unpackFS</span> <span class="n" style="color: #333;">s</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC460" class="line" lang="haskell">  <span class="n" style="color: #333;">mkListGrds</span> <span class="n" style="color: #333;">x</span> <span class="p">(</span><span class="n" style="color: #333;">zip</span> <span class="n" style="color: #333;">vars</span> <span class="n" style="color: #333;">char_grdss</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC461" class="line" lang="haskell"><span class="n" style="color: #333;">mkPmLitGrds</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">lit</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;">-<span id="LC460" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">con</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmAltLit</span> <span class="n" style="color: #333;">lit</span></span>
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<pre style="margin: 0;">-<span id="LC461" class="line" lang="haskell">      <span class="n" style="color: #333;">grd</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="p">{</span> <span class="n" style="color: #333;">pm_id</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;">+<span id="LC462" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">grd</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="p">{</span> <span class="n" style="color: #333;">pm_id</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC463" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">pm_con_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmAltLit</span> <span class="n" style="color: #333;">lit</span></span>
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<pre style="margin: 0;"> <span id="LC464" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">pm_con_tvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC465" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">pm_con_dicts</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC466" class="line" lang="haskell">                  <span class="p">,</span> <span class="n" style="color: #333;">pm_con_args</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC466" class="line" lang="haskell">  <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">conMatchStrictGrds</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">con</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">++</span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="n" style="color: #333;"><span class="idiff">grd</span></span><span class="p"><span class="idiff right">])</span></span></span>
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<pre style="margin: 0;">+<span id="LC467" class="line" lang="haskell">  <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">[</span></span><span class="n" style="color: #333;"><span class="idiff">grd</span></span><span class="p"><span class="idiff right">]</span></span></span>
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<pre style="margin: 0;"> <span id="LC468" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC469" class="line" lang="haskell"><span class="cd">-- | @desugarPat _ x pat@ transforms @pat@ into a 'GrdVec', where</span></span>
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<pre style="margin: 0;"> <span id="LC470" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the variable representing the match is @x@.</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -499,11 +500,11 @@ desugarPat x pat = case pat of</td>
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<pre style="margin: 0;"> <span id="LC500" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- (n + k)  ===>   let b = x >= k, True <- b, let n = x-k</span></span>
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<pre style="margin: 0;"> <span id="LC501" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">NPlusKPat</span> <span class="n" style="color: #333;">_pat_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">n</span><span class="p">)</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="n" style="color: #333;">ge</span> <span class="n" style="color: #333;">minus</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC502" class="line" lang="haskell">    <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mkPmId</span> <span class="n" style="color: #333;">boolTy</span></span>
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<pre style="margin: 0;">-<span id="LC502" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">grd_b</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vanillaConGrd<span class="idiff left right">s</span></span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">trueDataCon</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;">+<span id="LC503" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">grd_b</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vanillaConGrd</span> <span class="n" style="color: #333;">b</span> <span class="n" style="color: #333;">trueDataCon</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC504" class="line" lang="haskell">    <span class="p">[</span><span class="n" style="color: #333;">ke1</span><span class="p">,</span> <span class="n" style="color: #333;">ke2</span><span class="p">]</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">traverse</span> <span class="n" style="color: #333;">dsOverLit</span> <span class="p">[</span><span class="n" style="color: #333;">unLoc</span> <span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC505" class="line" lang="haskell">    <span class="n" style="color: #333;">rhs_b</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">dsSyntaxExpr</span> <span class="n" style="color: #333;">ge</span>    <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">x</span><span class="p">,</span> <span class="n" style="color: #333;">ke1</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC506" class="line" lang="haskell">    <span class="n" style="color: #333;">rhs_n</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">dsSyntaxExpr</span> <span class="n" style="color: #333;">minus</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">x</span><span class="p">,</span> <span class="n" style="color: #333;">ke2</span><span class="p">]</span></span>
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<pre style="margin: 0;">-<span id="LC506" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;"><span class="idiff left">$</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">PmLet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">b</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">rhs_b</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">:</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">grd_b</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">++</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">[</span></span><span class="kt" style="color: #458; font-weight: 600;">PmLet</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">rhs_n</span><span class="p">]</span></span>
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<pre style="margin: 0;">+<span id="LC507" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">[</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">PmLet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">b</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">rhs_b</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">grd_b</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">PmLet</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">rhs_n</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC508" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC509" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- (fun -> pat)   ===>   let y = fun x, pat <- y where y is a match var of pat</span></span>
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<pre style="margin: 0;"> <span id="LC510" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">ViewPat</span> <span class="n" style="color: #333;">_arg_ty</span> <span class="n" style="color: #333;">lexpr</span> <span class="n" style="color: #333;">pat</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="582" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -582,13 +583,13 @@ desugarPat x pat = case pat of</td>
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<pre style="margin: 0;"> <span id="LC583" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">TuplePat</span> <span class="n" style="color: #333;">_tys</span> <span class="n" style="color: #333;">pats</span> <span class="n" style="color: #333;">boxity</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC584" class="line" lang="haskell">    <span class="p">(</span><span class="n" style="color: #333;">vars</span><span class="p">,</span> <span class="n" style="color: #333;">grdss</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapAndUnzipM</span> <span class="n" style="color: #333;">desugarLPatV</span> <span class="n" style="color: #333;">pats</span></span>
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<pre style="margin: 0;"> <span id="LC585" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tuple_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tupleDataCon</span> <span class="n" style="color: #333;">boxity</span> <span class="p">(</span><span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">vars</span><span class="p">)</span></span>
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<td class="diff-line-num new_line old" data-linenumber="586" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC585" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vanillaConGrd<span class="idiff left">s</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tuple_con</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vars</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">++</span></span> <span class="n" style="color: #333;">concat</span> <span class="n" style="color: #333;">grdss</span></span>
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<pre style="margin: 0;">+<span id="LC586" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vanillaConGrd</span><span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tuple_con</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vars</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">:</span></span> <span class="n" style="color: #333;">concat</span> <span class="n" style="color: #333;">grdss</span></span>
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<td class="diff-line-num new_line" data-linenumber="587" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC587" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC588" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SumPat</span> <span class="n" style="color: #333;">_ty</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">alt</span> <span class="n" style="color: #333;">arity</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<td class="diff-line-num new_line" data-linenumber="589" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC589" class="line" lang="haskell">    <span class="p">(</span><span class="n" style="color: #333;">y</span><span class="p">,</span> <span class="n" style="color: #333;">grds</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">desugarLPatV</span> <span class="n" style="color: #333;">p</span></span>
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<pre style="margin: 0;"> <span id="LC590" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">sum_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">sumDataCon</span> <span class="n" style="color: #333;">alt</span> <span class="n" style="color: #333;">arity</span></span>
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<pre style="margin: 0;"> <span id="LC591" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- See Note [Unboxed tuple RuntimeRep vars] in GHC.Core.TyCon</span></span>
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<td class="diff-line-num new_line old" data-linenumber="592" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC591" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vanillaConGrd<span class="idiff left">s</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">sum_con</span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="n" style="color: #333;"><span class="idiff">y</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">++</span></span> <span class="n" style="color: #333;">grds</span></span>
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<td class="diff-line-num new old_line" data-linenumber="592" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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592
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<pre style="margin: 0;">+<span id="LC592" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vanillaConGrd</span><span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">sum_con</span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="n" style="color: #333;"><span class="idiff">y</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff right">:</span></span> <span class="n" style="color: #333;">grds</span></span>
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592
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593
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<pre style="margin: 0;"> <span id="LC593" class="line" lang="haskell"></span>
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593
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<pre style="margin: 0;"> <span id="LC594" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SplicePat</span> <span class="p">{}</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">panic</span> <span class="s" style="color: #d14;">"Check.desugarPat: SplicePat"</span></span>
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595
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<pre style="margin: 0;"> <span id="LC595" class="line" lang="haskell"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="614" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="615" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -614,11 +615,6 @@ desugarListPat x pats = do</td>
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<pre style="margin: 0;"> <span id="LC615" class="line" lang="haskell">  <span class="n" style="color: #333;">vars_and_grdss</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">traverse</span> <span class="n" style="color: #333;">desugarLPatV</span> <span class="n" style="color: #333;">pats</span></span>
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<pre style="margin: 0;"> <span id="LC616" class="line" lang="haskell">  <span class="n" style="color: #333;">mkListGrds</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">vars_and_grdss</span></span>
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617
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<pre style="margin: 0;"> <span id="LC617" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="617" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<td class="diff-line-num new_line old" data-linenumber="618" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC617" class="line" lang="haskell"><span class="n" style="color: #333;">conMatchStrictGrds</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">PmAltCon</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">GrdVec</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="618" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
618
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<td class="diff-line-num new_line old" data-linenumber="618" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC618" class="line" lang="haskell"><span class="n" style="color: #333;">conMatchStrictGrds</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">x</span></span>
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<td class="diff-line-num old old_line" data-linenumber="619" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
619
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<td class="diff-line-num new_line old" data-linenumber="618" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC619" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isPmAltConMatchStrict</span> <span class="n" style="color: #333;">con</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">PmBang</span> <span class="n" style="color: #333;">x</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">]</span></span>
</pre>
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620
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<td class="diff-line-num new_line old" data-linenumber="618" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC620" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>                 <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="621" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
621
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<td class="diff-line-num new_line old" data-linenumber="618" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC621" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC618" class="line" lang="haskell"><span class="cd">-- | Desugar a constructor pattern</span></span>
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<td class="diff-line-num old_line" data-linenumber="623" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC619" class="line" lang="haskell"><span class="n" style="color: #333;">desugarConPatOut</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ConLike</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyVar</span><span class="p">]</span></span>
</pre>
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624
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<pre style="margin: 0;"> <span id="LC620" class="line" lang="haskell">                 <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">EvVar</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">HsConPatDetails</span> <span class="kt" style="color: #458; font-weight: 600;">GhcTc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DsM</span> <span class="kt" style="color: #458; font-weight: 600;">GrdVec</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -642,33 +638,31 @@ desugarConPatOut x con univ_tys ex_tvs dicts = \case</td>
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<pre style="margin: 0;"> <span id="LC638" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC639" class="line" lang="haskell">    <span class="n" style="color: #333;">go_field_pats</span> <span class="n" style="color: #333;">tagged_pats</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC640" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- The fields that appear might not be in the correct order. So</span></span>
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<pre style="margin: 0;">-<span id="LC645" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--   1. Add a bang that forces the match var if 'isPmAltConMatchStrict'.</span></span>
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<pre style="margin: 0;">-<span id="LC646" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--   2. Do the PmCon match</span></span>
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<pre style="margin: 0;">-<span id="LC647" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--   3. Then pattern match on the fields in the order given by the first</span></span>
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<pre style="margin: 0;">+<span id="LC641" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--   1. Do the PmCon match</span></span>
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<pre style="margin: 0;">+<span id="LC642" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--   2. Then pattern match on the fields in the order given by the first</span></span>
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<pre style="margin: 0;"> <span id="LC643" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">--      field of @tagged_pats@.</span></span>
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<pre style="margin: 0;"> <span id="LC644" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- See Note [Field match order for RecCon]</span></span>
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<pre style="margin: 0;"> <span id="LC645" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC646" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- Desugar the mentioned field patterns. We're doing this first to get</span></span>
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<pre style="margin: 0;">-<span id="LC652" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- the Ids for pm_con_args.</span></span>
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<pre style="margin: 0;">+<span id="LC647" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- the Ids for pm_con_args<span class="idiff left right"> and bring them in order afterwards</span>.</span></span>
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<pre style="margin: 0;"> <span id="LC648" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">trans_pat</span> <span class="p">(</span><span class="n" style="color: #333;">n</span><span class="p">,</span> <span class="n" style="color: #333;">pat</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC649" class="line" lang="haskell">            <span class="p">(</span><span class="n" style="color: #333;">var</span><span class="p">,</span> <span class="n" style="color: #333;">pvec</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">desugarLPatV</span> <span class="n" style="color: #333;">pat</span></span>
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<pre style="margin: 0;"> <span id="LC650" class="line" lang="haskell">            <span class="n" style="color: #333;">pure</span> <span class="p">((</span><span class="n" style="color: #333;">n</span><span class="p">,</span> <span class="n" style="color: #333;">var</span><span class="p">),</span> <span class="n" style="color: #333;">pvec</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC651" class="line" lang="haskell">      <span class="p">(</span><span class="n" style="color: #333;">tagged_vars</span><span class="p">,</span> <span class="n" style="color: #333;">arg_grdss</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapAndUnzipM</span> <span class="n" style="color: #333;">trans_pat</span> <span class="n" style="color: #333;">tagged_pats</span></span>
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<pre style="margin: 0;"> <span id="LC652" class="line" lang="haskell"></span>
</pre>
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658
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<td class="diff-line-num new_line old" data-linenumber="653" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC658" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">alt_con</span>         <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="n" style="color: #333;">con</span></span>
</pre>
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<td class="diff-line-num new_line old" data-linenumber="653" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC659" class="line" lang="haskell">          <span class="n" style="color: #333;">get_pat_id</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">lookup</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">tagged_vars</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC653" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">get_pat_id</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">lookup</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">tagged_vars</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
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660
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<td class="diff-line-num new_line" data-linenumber="654" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
654
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<pre style="margin: 0;"> <span id="LC654" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">var</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">var</span></span>
</pre>
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661
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<td class="diff-line-num new_line" data-linenumber="655" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC655" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">Nothing</span>  <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">mkPmId</span> <span class="n" style="color: #333;">ty</span></span>
</pre>
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662
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656
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<pre style="margin: 0;"> <span id="LC656" class="line" lang="haskell"></span>
</pre>
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663
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<td class="diff-line-num new_line old" data-linenumber="657" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC663" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- the constructor pattern match itself</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="664" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<pre style="margin: 0;">+<span id="LC657" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">1. </span>the constructor pattern match itself</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC658" class="line" lang="haskell">      <span class="n" style="color: #333;">arg_ids</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">zipWithM</span> <span class="n" style="color: #333;">get_pat_id</span> <span class="p">[</span><span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">..</span><span class="p">]</span> <span class="n" style="color: #333;">arg_tys</span></span>
</pre>
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<td class="diff-line-num new_line old" data-linenumber="659" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC665" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">con_grd</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;"><span class="idiff left right">alt_con</span></span> <span class="n" style="color: #333;">ex_tvs</span> <span class="n" style="color: #333;">dicts</span> <span class="n" style="color: #333;">arg_ids</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC659" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">con_grd</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="n" style="color: #333;">x</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">PmAltConLike</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">con</span></span><span class="p"><span class="idiff right">)</span></span> <span class="n" style="color: #333;">ex_tvs</span> <span class="n" style="color: #333;">dicts</span> <span class="n" style="color: #333;">arg_ids</span></span>
</pre>
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660
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<pre style="margin: 0;"> <span id="LC660" class="line" lang="haskell"></span>
</pre>
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667
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<td class="diff-line-num new_line old" data-linenumber="661" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC667" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- guards from field selector patterns</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="668" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<pre style="margin: 0;">+<span id="LC661" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">2. </span>guards from field selector patterns</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC662" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">arg_grds</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">concat</span> <span class="n" style="color: #333;">arg_grdss</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC663" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;"> <span id="LC664" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- tracePm "ConPatOut" (ppr x $$ ppr con $$ ppr arg_ids)</span></span>
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671
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<td class="diff-line-num new_line old" data-linenumber="665" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC671" class="line" lang="haskell">      <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="n" style="color: #333;">con<span class="idiff left">MatchStrictGrds</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">alt_con</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">++</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">con</span>_grd</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">arg_grds</span><span class="p">)</span></span>
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665
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<pre style="margin: 0;">+<span id="LC665" class="line" lang="haskell">      <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="n" style="color: #333;">con_grd</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">arg_grds</span><span class="p">)</span></span>
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672
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666
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<pre style="margin: 0;"> <span id="LC666" class="line" lang="haskell"></span>
</pre>
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673
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<pre style="margin: 0;"> <span id="LC667" class="line" lang="haskell"><span class="n" style="color: #333;">desugarPatBind</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SrcSpan</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Pat</span> <span class="kt" style="color: #458; font-weight: 600;">GhcTc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DsM</span> <span class="kt" style="color: #458; font-weight: 600;">GrdPatBind</span></span>
</pre>
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674
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<pre style="margin: 0;"> <span id="LC668" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See 'GrdPatBind' for how this simply repurposes GrdGRHS.</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="747" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -753,10 +747,10 @@ desugarBoolGuard e</td>
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<pre style="margin: 0;"> <span id="LC747" class="line" lang="haskell">      <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">y</span></span>
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748
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<pre style="margin: 0;"> <span id="LC748" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">isDataConId_maybe</span> <span class="n" style="color: #333;">y</span></span>
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749
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<pre style="margin: 0;"> <span id="LC749" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- Omit the let by matching on y</span></span>
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756
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<pre style="margin: 0;">-<span id="LC756" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">vanillaConGrds</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">y</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">trueDataCon</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">[]</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC750" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">[</span></span><span class="n" style="color: #333;"><span class="idiff">vanillaConGrd</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">y</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">trueDataCon</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">[]</span></span><span class="p"><span class="idiff right">]</span></span></span>
</pre>
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757
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<pre style="margin: 0;"> <span id="LC751" class="line" lang="haskell">      <span class="n" style="color: #333;">rhs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC752" class="line" lang="haskell">        <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mkPmId</span> <span class="n" style="color: #333;">boolTy</span></span>
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<pre style="margin: 0;">-<span id="LC759" class="line" lang="haskell">        <span class="n" style="color: #333;">pure</span> <span class="o" style="font-weight: 600;"><span class="idiff left">$</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">PmLet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">rhs</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">:</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vanillaConGrds</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">trueDataCon</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">[</span>]</span></span>
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<pre style="margin: 0;">+<span id="LC753" class="line" lang="haskell">        <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">[</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">PmLet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">rhs</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vanillaConGrd</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">trueDataCon</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">[]</span></span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC754" class="line" lang="haskell"></span>
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761
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755
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<pre style="margin: 0;"> <span id="LC755" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Field match order for RecCon]</span></span>
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762
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756
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<pre style="margin: 0;"> <span id="LC756" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="768" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -768,13 +762,11 @@ the pattern match. For example:</td>
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768
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<pre style="margin: 0;"> <span id="LC762" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  f T{ b = 42, a = 'a' } = ()</span></span>
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<td class="diff-line-num new_line" data-linenumber="763" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
763
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<pre style="margin: 0;"> <span id="LC763" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="770" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<td class="diff-line-num new_line" data-linenumber="764" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
764
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<pre style="margin: 0;"> <span id="LC764" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Then @f (T (error "a") (error "b"))@ errors out with "b" because it is mentioned</span></span>
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771
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<td class="diff-line-num new_line old" data-linenumber="765" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC771" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">f<span class="idiff left right">ri</span>st in the pattern match.</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC765" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">f<span class="idiff left right">ir</span>st in the pattern match.</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC766" class="line" lang="haskell"></span>
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<td class="diff-line-num new_line" data-linenumber="767" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC767" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">This means we can't just desugar the pattern match to</span></span>
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774
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<td class="diff-line-num new_line old" data-linenumber="768" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC774" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">@[!x, T a b <- x, 'a' <- a, 42 <- b]@. Instead we have to force them in the</span></span>
</pre>
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775
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<td class="diff-line-num new_line old" data-linenumber="768" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC775" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">right order: @[!x, T a b <- x, 42 <- b, 'a' <- a]@.</span></span>
</pre>
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776
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<td class="diff-line-num new_line old" data-linenumber="768" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC776" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note the preceding bang guards on the match var: They are necessary for DataCons</span></span>
</pre>
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777
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<td class="diff-line-num new_line old" data-linenumber="768" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC777" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">as PmCon guards match lazily.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="778" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="768" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC768" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">@[T a b <- x, 'a' <- a, 42 <- b]@. Instead we have to force them in the</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC769" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">right order: @[T a b <- x, 42 <- b, 'a' <- a]@.</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC770" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC771" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note [Strict fields and fields of unlifted type]</span></span>
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<pre style="margin: 0;"> <span id="LC772" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -983,11 +975,14 @@ checkGrd grd = CA $ \inc -> case grd of</td>
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983
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<td class="diff-line-num new_line" data-linenumber="975" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
975
</td>
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<pre style="margin: 0;"> <span id="LC975" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_approx</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Precise</span> <span class="p">}</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
984
</td>
<td class="diff-line-num new_line" data-linenumber="976" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
976
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC976" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Con: Fall through on x /~ K and refine with x ~ K ys and type info</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="985" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
985
</td>
<td class="diff-line-num new_line" data-linenumber="977" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
977
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC977" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">PmCon</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">tvs</span> <span class="n" style="color: #333;">dicts</span> <span class="n" style="color: #333;">args</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
</td>
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<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
978
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC978" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">div</span> <span class="o" style="font-weight: 600;"><-</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">isPmAltConMatchStrict</span> <span class="n" style="color: #333;">con</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="979" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
979
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC979" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">addPmCtNablas</span> <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmBotCt</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="980" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
980
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC980" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">mempty</span></span>
</pre>
</td>
</tr>
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<td class="diff-line-num old_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
986
</td>
<td class="diff-line-num new_line" data-linenumber="981" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
981
</td>
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<pre style="margin: 0;"> <span id="LC981" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">con_cts</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pmConCts</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">tvs</span> <span class="n" style="color: #333;">dicts</span> <span class="n" style="color: #333;">args</span></span>
</pre>
</td>
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<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="987" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
987
</td>
<td class="diff-line-num new_line old" data-linenumber="982" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC987" class="line" lang="haskell">    <span class="n" style="color: #333;">matched</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPmCtsNablas</span> <span class="n" style="color: #333;">inc</span> <span class="n" style="color: #333;">con_cts</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="988" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
988
</td>
<td class="diff-line-num new_line old" data-linenumber="982" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC988" class="line" lang="haskell">    <span class="n" style="color: #333;">uncov</span>   <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPmCtNablas</span>  <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmNotConCt</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">con</span><span class="p">)</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="989" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="982" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
982
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC982" class="line" lang="haskell">    <span class="o" style="font-weight: 600;"><span class="idiff left right">!</span></span><span class="n" style="color: #333;">matched</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPmCtsNablas</span> <span class="n" style="color: #333;">inc</span> <span class="n" style="color: #333;">con_cts</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="989" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="983" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
983
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC983" class="line" lang="haskell">    <span class="o" style="font-weight: 600;"><span class="idiff left right">!</span></span><span class="n" style="color: #333;">uncov</span>   <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addPmCtNablas</span>  <span class="n" style="color: #333;">inc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmNotConCt</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">con</span><span class="p">)</span></span>
</pre>
</td>
</tr>
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<td class="diff-line-num old_line" data-linenumber="989" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
989
</td>
<td class="diff-line-num new_line" data-linenumber="984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
984
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC984" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- tracePm "checkGrd:Con" (ppr inc $$ ppr grd $$ ppr con_cts $$ ppr matched)</span></span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="990" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
990
</td>
<td class="diff-line-num new_line old" data-linenumber="985" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC990" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">CheckResult</span> <span class="p">{</span> <span class="n" style="color: #333;">cr_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyRedSets</span> <span class="p">{</span> <span class="n" style="color: #333;">rs_cov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">matched</span> <span class="p">}</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="991" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="985" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
985
</td>
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<pre style="margin: 0;">+<span id="LC985" class="line" lang="haskell">    <span class="n" style="color: #333;">pure</span> <span class="kt" style="color: #458; font-weight: 600;">CheckResult</span> <span class="p">{</span> <span class="n" style="color: #333;">cr_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyRedSets</span> <span class="p">{</span> <span class="n" style="color: #333;">rs_cov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">matched</span><span class="p"><span class="idiff left">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">rs_div</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">div</span></span> <span class="p">}</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="991" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
991
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<td class="diff-line-num new_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
986
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<pre style="margin: 0;"> <span id="LC986" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_uncov</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">uncov</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="992" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
992
</td>
<td class="diff-line-num new_line" data-linenumber="987" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
987
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<pre style="margin: 0;"> <span id="LC987" class="line" lang="haskell">                     <span class="p">,</span> <span class="n" style="color: #333;">cr_approx</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Precise</span> <span class="p">}</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="993" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
993
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988
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<pre style="margin: 0;"> <span id="LC988" class="line" lang="haskell"></span>
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<li id="8d8e5922fde8bc19ffa2bc9cae6b6720abb88564">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d399d072b03a8bb5055d194983b83fdfdf3adf9b#8d8e5922fde8bc19ffa2bc9cae6b6720abb88564"><strong>compiler/GHC/HsToCore/PmCheck/Oracle.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="903" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="903" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -903,7 +903,11 @@ addNotConCt :: Nabla -> Id -> PmAltCon -> MaybeT DsM Nabla</td>
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<pre style="margin: 0;"> <span id="LC903" class="line" lang="haskell"><span class="n" style="color: #333;">addNotConCt</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RealDataCon</span> <span class="n" style="color: #333;">dc</span><span class="p">))</span></span>
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904
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904
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<pre style="margin: 0;"> <span id="LC904" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isNewDataCon</span> <span class="n" style="color: #333;">dc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mzero</span> <span class="c1" style="color: #998; font-style: italic;">-- (4) in Note [Coverage checking Newtype matches]</span></span>
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905
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905
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<pre style="margin: 0;"> <span id="LC905" class="line" lang="haskell"><span class="n" style="color: #333;">addNotConCt</span> <span class="n" style="color: #333;">nabla</span><span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">MkNabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ts</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TmSt</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">reps</span><span class="p">)</span> <span class="p">}</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">nalt</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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906
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<td class="diff-line-num new_line old" data-linenumber="906" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC906" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">vi</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">VI</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">pos</span> <span class="n" style="color: #333;">neg</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">pm</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lookupVarInfo</span> <span class="n" style="color: #333;">ts</span> <span class="n" style="color: #333;">x</span></span>
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906
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<pre style="margin: 0;">+<span id="LC906" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- For good performance, it's important to initPossibleMatches here.</span></span>
</pre>
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907
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<pre style="margin: 0;">+<span id="LC907" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Otherwise we can't mark nalt as matched later on, incurring unnecessary</span></span>
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<td class="diff-line-num new new_line" data-linenumber="908" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
908
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<pre style="margin: 0;">+<span id="LC908" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- inhabitation tests for nalt.</span></span>
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909
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<pre style="margin: 0;">+<span id="LC909" class="line" lang="haskell">  <span class="n" style="color: #333;">vi</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">VI</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">pos</span> <span class="n" style="color: #333;">neg</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">pm</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lift</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">initPossibleMatches</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_ty_st</span> <span class="n" style="color: #333;">nabla</span><span class="p">)</span></span>
</pre>
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910
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<pre style="margin: 0;">+<span id="LC910" class="line" lang="haskell">                                                       <span class="p">(</span><span class="n" style="color: #333;">lookupVarInfo</span> <span class="n" style="color: #333;">ts</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
</pre>
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907
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911
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<pre style="margin: 0;"> <span id="LC911" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- 1. Bail out quickly when nalt contradicts a solution</span></span>
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908
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912
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<pre style="margin: 0;"> <span id="LC912" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">contradicts</span> <span class="n" style="color: #333;">nalt</span> <span class="p">(</span><span class="n" style="color: #333;">cl</span><span class="p">,</span> <span class="n" style="color: #333;">_tvs</span><span class="p">,</span> <span class="n" style="color: #333;">_args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">eqPmAltCon</span> <span class="n" style="color: #333;">cl</span> <span class="n" style="color: #333;">nalt</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">Equal</span></span>
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913
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<pre style="margin: 0;"> <span id="LC913" class="line" lang="haskell">  <span class="n" style="color: #333;">guard</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">any</span> <span class="p">(</span><span class="n" style="color: #333;">contradicts</span> <span class="n" style="color: #333;">nalt</span><span class="p">)</span> <span class="n" style="color: #333;">pos</span><span class="p">))</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="915" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="919" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -915,11 +919,12 @@ addNotConCt nabla@MkNabla{ nabla_tm_st = ts@(TmSt env reps) } x nalt = do</td>
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915
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<pre style="margin: 0;"> <span id="LC919" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- See Note [Completeness checking with required Thetas]</span></span>
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<td class="diff-line-num old_line" data-linenumber="916" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
916
</td>
<td class="diff-line-num new_line" data-linenumber="920" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
920
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<pre style="margin: 0;"> <span id="LC920" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">hasRequiredTheta</span> <span class="n" style="color: #333;">nalt</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">neg</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="917" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
917
</td>
<td class="diff-line-num new_line" data-linenumber="921" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
921
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<pre style="margin: 0;"> <span id="LC921" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span>              <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendPmAltConSet</span> <span class="n" style="color: #333;">neg</span> <span class="n" style="color: #333;">nalt</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="918" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
918
</td>
<td class="diff-line-num new_line old" data-linenumber="922" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC918" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">vi1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vi</span><span class="p">{</span> <span class="n" style="color: #333;">vi_neg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">neg'</span> <span class="p">}</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="919" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="922" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
922
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<pre style="margin: 0;">+<span id="LC922" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">MASSERT</span><span class="p">(</span> <span class="n" style="color: #333;">isPmAltConMatchStrict</span> <span class="n" style="color: #333;">nalt</span> <span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="919" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="923" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
923
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<pre style="margin: 0;">+<span id="LC923" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">vi1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vi</span><span class="p">{</span> <span class="n" style="color: #333;">vi_neg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">neg'</span><span class="p">,</span> <span class="n" style="color: #333;">vi_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="p">}</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="919" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
919
</td>
<td class="diff-line-num new_line" data-linenumber="924" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
924
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<pre style="margin: 0;"> <span id="LC924" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- 3. Make sure there's at least one other possible constructor</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="920" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
920
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<td class="diff-line-num new_line" data-linenumber="925" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
925
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<pre style="margin: 0;"> <span id="LC925" class="line" lang="haskell">  <span class="n" style="color: #333;">vi2</span> <span class="o" style="font-weight: 600;"><-</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">nalt</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="921" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
921
</td>
<td class="diff-line-num new_line" data-linenumber="926" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
926
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<pre style="margin: 0;"> <span id="LC926" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="n" style="color: #333;">cl</span></span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="922" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
922
</td>
<td class="diff-line-num new_line old" data-linenumber="927" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC922" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">MaybeT</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">ensureInhabited</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nabla</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi1</span></span><span class="p"><span class="idiff">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi_cache</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">markMatched</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">cl</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">pm</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">})</span></span></span>
</pre>
</td>
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<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="923" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="927" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
927
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC927" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;"><span class="idiff left">ensureInhabited</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nabla</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi1</span></span><span class="p"><span class="idiff">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi_cache</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">markMatched</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">cl</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">pm</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">}</span></span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="923" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
923
</td>
<td class="diff-line-num new_line" data-linenumber="928" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
928
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<pre style="margin: 0;"> <span id="LC928" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">vi1</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="924" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
924
</td>
<td class="diff-line-num new_line" data-linenumber="929" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
929
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<pre style="margin: 0;"> <span id="LC929" class="line" lang="haskell">  <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">nabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TmSt</span> <span class="p">(</span><span class="n" style="color: #333;">setEntrySDIE</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">vi2</span><span class="p">)</span> <span class="n" style="color: #333;">reps</span> <span class="p">}</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="925" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
925
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<td class="diff-line-num new_line" data-linenumber="930" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
930
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<pre style="margin: 0;"> <span id="LC930" class="line" lang="haskell"></span>
</pre>
</td>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="993" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="998" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -993,30 +998,30 @@ addNotBotCt nabla@MkNabla{ nabla_tm_st = TmSt env reps } x = do</td>
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<td class="diff-line-num old_line" data-linenumber="993" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
993
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<td class="diff-line-num new_line" data-linenumber="998" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
998
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<pre style="margin: 0;"> <span id="LC998" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">IsBot</span>    <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">mzero</span>      <span class="c1" style="color: #998; font-style: italic;">-- There was x ~ ⊥. Contradiction!</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="994" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
994
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<td class="diff-line-num new_line" data-linenumber="999" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
999
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<pre style="margin: 0;"> <span id="LC999" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">nabla</span> <span class="c1" style="color: #998; font-style: italic;">-- There already is x /~ ⊥. Nothing left to do</span></span>
</pre>
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995
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<td class="diff-line-num new_line" data-linenumber="1000" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1000
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<pre style="margin: 0;"> <span id="LC1000" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span>         <span class="c1" style="color: #998; font-style: italic;">-- We add x /~ ⊥ and test if x is still inhabited</span></span>
</pre>
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996
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<td class="diff-line-num new_line old" data-linenumber="1001" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC996" class="line" lang="haskell">      <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;"><-</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">MaybeT</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">ensureInhabited</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span><span class="p">{</span> <span class="n" style="color: #333;">vi_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="p">}</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="997" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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1001
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<pre style="margin: 0;">+<span id="LC1001" class="line" lang="haskell">      <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">ensureInhabited</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span><span class="p">{</span> <span class="n" style="color: #333;">vi_bot</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="p">}</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="997" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
997
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<td class="diff-line-num new_line" data-linenumber="1002" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1002
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<pre style="margin: 0;"> <span id="LC1002" class="line" lang="haskell">      <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">nabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TmSt</span> <span class="p">(</span><span class="n" style="color: #333;">setEntrySDIE</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">y</span> <span class="n" style="color: #333;">vi</span><span class="p">)</span> <span class="n" style="color: #333;">reps</span><span class="p">}</span></span>
</pre>
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998
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<td class="diff-line-num new_line" data-linenumber="1003" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1003
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<pre style="margin: 0;"> <span id="LC1003" class="line" lang="haskell"></span>
</pre>
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999
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC999" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left">ensureInhabited</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">::</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Nabla</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">VarInfo</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">DsM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Maybe</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">VarInfo</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
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1000
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1000" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- Returns (Just vi) if at least one member of each ConLike in the COMPLETE</span></span></span>
</pre>
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1001
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1001" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- set satisfies the oracle</span></span></span>
</pre>
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1002
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1002" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">--</span></span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1003" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1003
</td>
<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1003" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- Internally uses and updates the ConLikeSets in vi_cache.</span></span></span>
</pre>
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1004
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1004" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">--</span></span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1005" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1005
</td>
<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1005" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- NB: Does /not/ filter each ConLikeSet with the oracle; members may</span></span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1006" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1006
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1006" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">--     remain that do not statisfy it.  This lazy approach just</span></span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1007
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<td class="diff-line-num new_line old" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1007" class="line" lang="haskell"><span class="idiff left">   </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">--     avoids doing unnecessary work.</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1004
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<pre style="margin: 0;">+<span id="LC1004" class="line" lang="haskell"><span class="cd"><span class="idiff left right">-- | Returns (Just vi) if at least one member of each ConLike in the COMPLETE</span></span></span>
</pre>
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1005
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1005" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- set satisfies the oracle</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1006" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1006
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<pre style="margin: 0;">+<span id="LC1006" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">--</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1007
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<pre style="margin: 0;">+<span id="LC1007" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- Internally uses and updates the ConLikeSets in vi_cache.</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1008
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1008" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">--</span></span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1009" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1009
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1009" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- NB: Does /not/ filter each ConLikeSet with the oracle; members may</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1010" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1010
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1010" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">--     remain that do not statisfy it.  This lazy approach just</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1011" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1011
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1011" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">--     avoids doing unnecessary work.</span></span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1012
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<pre style="margin: 0;">+<span id="LC1012" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left">ensureInhabited</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">::</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Nabla</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">VarInfo</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">MaybeT</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">DsM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">VarInfo</span></span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1008
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<td class="diff-line-num new_line" data-linenumber="1013" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1013
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<pre style="margin: 0;"> <span id="LC1013" class="line" lang="haskell"><span class="n" style="color: #333;">ensureInhabited</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">vi_bot</span> <span class="n" style="color: #333;">vi</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1009" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1009
</td>
<td class="diff-line-num new_line old" data-linenumber="1014" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1009" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Just</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi</span></span><span class="p"><span class="idiff right">)</span></span> <span class="c1" style="color: #998; font-style: italic;">-- The |-Bot rule from the paper</span></span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="1010" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1010
</td>
<td class="diff-line-num new_line old" data-linenumber="1014" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1010" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">IsBot</span>    <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Just</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="1011" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1011
</td>
<td class="diff-line-num new_line old" data-linenumber="1014" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1011" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;"><span class="idiff left">initPossibleMatches</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">nabla_ty_st</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nabla</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">vi</span></span> <span class="o" style="font-weight: 600;">>>=</span> <span class="n" style="color: #333;">inst_complete_sets</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="1012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1014" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1014
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<pre style="margin: 0;">+<span id="LC1014" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;"><span class="idiff left right">vi</span></span> <span class="c1" style="color: #998; font-style: italic;">-- The |-Bot rule from the paper</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="1012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1015" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1015
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<pre style="margin: 0;">+<span id="LC1015" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">IsBot</span>    <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;"><span class="idiff left right">vi</span></span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="1012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1016" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1016
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<pre style="margin: 0;">+<span id="LC1016" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;"><span class="idiff left">lift</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">initPossibleMatches</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">nabla_ty_st</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">nabla</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;">>>=</span> <span class="n" style="color: #333;">inst_complete_sets</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1012
</td>
<td class="diff-line-num new_line" data-linenumber="1017" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1017
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<pre style="margin: 0;"> <span id="LC1017" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1013" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1013
</td>
<td class="diff-line-num new_line" data-linenumber="1018" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1018
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<pre style="margin: 0;"> <span id="LC1018" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- | This is the |-Inst rule from the paper (section 4.5). Tries to</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1014" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1014
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<td class="diff-line-num new_line" data-linenumber="1019" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1019
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<pre style="margin: 0;"> <span id="LC1019" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- find an inhabitant in every complete set by instantiating with one their</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1015" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1015
</td>
<td class="diff-line-num new_line" data-linenumber="1020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1020
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<pre style="margin: 0;"> <span id="LC1020" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- constructors. If there is any complete set where we can't find an</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1016" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1016
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<td class="diff-line-num new_line" data-linenumber="1021" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1021
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<pre style="margin: 0;"> <span id="LC1021" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- inhabitant, the whole thing is uninhabited.</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1017" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1017
</td>
<td class="diff-line-num new_line old" data-linenumber="1022" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1017" class="line" lang="haskell">    <span class="n" style="color: #333;">inst_complete_sets</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">VarInfo</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">DsM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Maybe</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">VarInfo</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1018" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1018
</td>
<td class="diff-line-num new_line old" data-linenumber="1022" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1018" class="line" lang="haskell">    <span class="n" style="color: #333;">inst_complete_sets</span> <span class="n" style="color: #333;">vi</span><span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">VI</span><span class="p">{</span> <span class="n" style="color: #333;">vi_cache</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoPM</span> <span class="p">}</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Just</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vi</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1019" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1019
</td>
<td class="diff-line-num new_line old" data-linenumber="1022" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1019" class="line" lang="haskell">    <span class="n" style="color: #333;">inst_complete_sets</span> <span class="n" style="color: #333;">vi</span><span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">VI</span><span class="p">{</span> <span class="n" style="color: #333;">vi_cache</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PM</span> <span class="n" style="color: #333;">ms</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">runMaybeT</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="idiff right"> </span><span class="kr" style="font-weight: 600;">do</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="1020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1022" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1022
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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1022" class="line" lang="haskell">    <span class="n" style="color: #333;">inst_complete_sets</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">VarInfo</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">MaybeT</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">DsM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">VarInfo</span></span></span>
</pre>
</td>
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<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1023" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1023
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1023" class="line" lang="haskell">    <span class="n" style="color: #333;">inst_complete_sets</span> <span class="n" style="color: #333;">vi</span><span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">VI</span><span class="p">{</span> <span class="n" style="color: #333;">vi_cache</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoPM</span> <span class="p">}</span>  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;"><span class="idiff left right">vi</span></span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1024" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1024
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1024" class="line" lang="haskell">    <span class="n" style="color: #333;">inst_complete_sets</span> <span class="n" style="color: #333;">vi</span><span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">VI</span><span class="p">{</span> <span class="n" style="color: #333;">vi_cache</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PM</span> <span class="n" style="color: #333;">ms</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
</td>
</tr>
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<td class="diff-line-num old_line" data-linenumber="1020" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1020
</td>
<td class="diff-line-num new_line" data-linenumber="1025" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1025
</td>
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<pre style="margin: 0;"> <span id="LC1025" class="line" lang="haskell">      <span class="n" style="color: #333;">ms</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">traverse</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">cs</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">inst_complete_set</span> <span class="n" style="color: #333;">vi</span> <span class="n" style="color: #333;">cs</span> <span class="p">(</span><span class="n" style="color: #333;">uniqDSetToList</span> <span class="n" style="color: #333;">cs</span><span class="p">))</span> <span class="n" style="color: #333;">ms</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1021" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1021
</td>
<td class="diff-line-num new_line" data-linenumber="1026" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1026
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1026" class="line" lang="haskell">      <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">vi</span><span class="p">{</span> <span class="n" style="color: #333;">vi_cache</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">PM</span> <span class="n" style="color: #333;">ms</span> <span class="p">}</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1022" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1022
</td>
<td class="diff-line-num new_line" data-linenumber="1027" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1027
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1027" class="line" lang="haskell"></span>
</pre>
</td>
</tr>
<tr class="line_holder match" id="" style="line-height: 1.6;">
<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1061" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1066" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1061,8 +1066,7 @@ ensureAllInhabited nabla@MkNabla{ nabla_tm_st = TmSt env reps }</td>
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<td class="diff-line-num old_line" data-linenumber="1061" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1061
</td>
<td class="diff-line-num new_line" data-linenumber="1066" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1066
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<pre style="margin: 0;"> <span id="LC1066" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runMaybeT</span> <span class="p">(</span><span class="n" style="color: #333;">set_tm_cs_env</span> <span class="n" style="color: #333;">nabla</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">traverseSDIE</span> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">env</span><span class="p">)</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1062" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1062
</td>
<td class="diff-line-num new_line" data-linenumber="1067" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1067
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<pre style="margin: 0;"> <span id="LC1067" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1063" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1063
</td>
<td class="diff-line-num new_line" data-linenumber="1068" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1068
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<pre style="margin: 0;"> <span id="LC1068" class="line" lang="haskell">    <span class="n" style="color: #333;">set_tm_cs_env</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">env</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TmSt</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">reps</span> <span class="p">}</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1064" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1064
</td>
<td class="diff-line-num new_line old" data-linenumber="1069" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1064" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">MaybeT</span> <span class="o" style="font-weight: 600;">$</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1065" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1065
</td>
<td class="diff-line-num new_line old" data-linenumber="1069" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1065" class="line" lang="haskell">      <span class="n" style="color: #333;">initPossibleMatches</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_ty_st</span> <span class="n" style="color: #333;">nabla</span><span class="p">)</span> <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;">>>=</span> <span class="n" style="color: #333;">ensureInhabited</span> <span class="n" style="color: #333;">nabla</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1066" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1069" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1069
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<pre style="margin: 0;">+<span id="LC1069" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">vi</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ensureInhabited</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">vi</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1066" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1066
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<td class="diff-line-num new_line" data-linenumber="1070" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1070
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<pre style="margin: 0;"> <span id="LC1070" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1067" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1067
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<td class="diff-line-num new_line" data-linenumber="1071" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1071
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<pre style="margin: 0;"> <span id="LC1071" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--------------------------------------</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1068" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1068
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<td class="diff-line-num new_line" data-linenumber="1072" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1072
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<pre style="margin: 0;"> <span id="LC1072" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- * Term oracle unification procedure</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1144" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1148" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1144,17 +1148,18 @@ addConCt nabla@MkNabla{ nabla_tm_st = ts@(TmSt env reps) } x alt tvs args = do</td>
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<td class="diff-line-num old_line" data-linenumber="1144" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1144
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<td class="diff-line-num new_line" data-linenumber="1148" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1148
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<pre style="margin: 0;"> <span id="LC1148" class="line" lang="haskell">      <span class="kt" style="color: #458; font-weight: 600;">MaybeT</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">addPmCts</span> <span class="n" style="color: #333;">nabla</span> <span class="p">(</span><span class="n" style="color: #333;">listToBag</span> <span class="n" style="color: #333;">ty_cts</span> <span class="p">`</span><span class="n" style="color: #333;">unionBags</span><span class="p">`</span> <span class="n" style="color: #333;">listToBag</span> <span class="n" style="color: #333;">tm_cts</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1145" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1145
</td>
<td class="diff-line-num new_line" data-linenumber="1149" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1149
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<pre style="margin: 0;"> <span id="LC1149" class="line" lang="haskell">    <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1146" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1146
</td>
<td class="diff-line-num new_line" data-linenumber="1150" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1150
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<pre style="margin: 0;"> <span id="LC1150" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">pos'</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">alt</span><span class="p">,</span> <span class="n" style="color: #333;">tvs</span><span class="p">,</span> <span class="n" style="color: #333;">args</span><span class="p">)</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">pos</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1147" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1147
</td>
<td class="diff-line-num new_line old" data-linenumber="1151" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1147" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">nabla<span class="idiff left right">'</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TmSt</span> <span class="p">(</span><span class="n" style="color: #333;">setEntrySDIE</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">x</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">VI</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">pos'</span> <span class="n" style="color: #333;">neg</span> <span class="n" style="color: #333;">bot</span> <span class="n" style="color: #333;">cache</span><span class="p">))</span> <span class="n" style="color: #333;">reps</span><span class="p">}</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="1148" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1151" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1151
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<pre style="margin: 0;">+<span id="LC1151" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">nabla<span class="idiff left">_with</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">bot</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nabla</span><span class="p">{</span> <span class="n" style="color: #333;">nabla_tm_st</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TmSt</span> <span class="p">(</span><span class="n" style="color: #333;">setEntrySDIE</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">x</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">VI</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">pos'</span> <span class="n" style="color: #333;">neg</span> <span class="n" style="color: #333;">bot</span> <span class="n" style="color: #333;">cache</span><span class="p">))</span> <span class="n" style="color: #333;">reps</span><span class="p">}</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1148" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1148
</td>
<td class="diff-line-num new_line" data-linenumber="1152" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1152
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<pre style="margin: 0;"> <span id="LC1152" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- In case of a newtype constructor, we have to make sure that x ~ ⊥ and</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1149" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1149
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<td class="diff-line-num new_line" data-linenumber="1153" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1153
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<pre style="margin: 0;"> <span id="LC1153" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- x /~ ⊥ constraints now apply to the wrapped thing, as 'lookupVarInfoNT'</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1150" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1150
</td>
<td class="diff-line-num new_line" data-linenumber="1154" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1154
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<pre style="margin: 0;"> <span id="LC1154" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- looks through newtype constructors.</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1151" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1151
</td>
<td class="diff-line-num new_line" data-linenumber="1155" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1155
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1155" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">alt</span><span class="p">,</span> <span class="n" style="color: #333;">args</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1152" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1152
</td>
<td class="diff-line-num new_line" data-linenumber="1156" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1156
</td>
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<pre style="margin: 0;"> <span id="LC1156" class="line" lang="haskell">        <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PmAltConLike</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RealDataCon</span> <span class="n" style="color: #333;">dc</span><span class="p">),</span> <span class="p">[</span><span class="n" style="color: #333;">y</span><span class="p">])</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isNewDataCon</span> <span class="n" style="color: #333;">dc</span> <span class="o" style="font-weight: 600;">-></span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1153" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1153
</td>
<td class="diff-line-num new_line" data-linenumber="1157" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1157
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<pre style="margin: 0;"> <span id="LC1157" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">bot</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="1154" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1154
</td>
<td class="diff-line-num new_line old" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1154" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">nabla'</span></span>
</pre>
</td>
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<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="1155" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1155
</td>
<td class="diff-line-num new_line old" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1155" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">IsBot</span>    <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">addBotCt</span> <span class="n" style="color: #333;">nabla'</span> <span class="n" style="color: #333;">y</span></span>
</pre>
</td>
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<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="1156" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1156
</td>
<td class="diff-line-num new_line old" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1156" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">addNotBotCt</span> <span class="n" style="color: #333;">nabla'</span> <span class="n" style="color: #333;">y</span></span>
</pre>
</td>
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<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="1157" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1157
</td>
<td class="diff-line-num new_line old" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1157" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="n" style="color: #333;">nabla'</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1158
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<pre style="margin: 0;">+<span id="LC1158" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_with</span> <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span><span class="p">)</span></span>
</pre>
</td>
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<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1159" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1159
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<pre style="margin: 0;">+<span id="LC1159" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">IsBot</span>    <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">addBotCt</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_with</span> <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span><span class="p">)</span> <span class="n" style="color: #333;">y</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1160" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1160
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1160" class="line" lang="haskell">            <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">addNotBotCt</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_with</span> <span class="kt" style="color: #458; font-weight: 600;">MaybeBot</span><span class="p">)</span> <span class="n" style="color: #333;">y</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1161" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1161
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1161" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT</span><span class="p">(</span> <span class="n" style="color: #333;">isPmAltConMatchStrict</span> <span class="n" style="color: #333;">alt</span> <span class="p">)</span></span>
</pre>
</td>
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<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1162" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1162
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<pre style="margin: 0;">+<span id="LC1162" class="line" lang="haskell">             <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_with</span> <span class="kt" style="color: #458; font-weight: 600;">IsNotBot</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- strict match ==> not ⊥</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1158" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1158
</td>
<td class="diff-line-num new_line" data-linenumber="1163" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1163
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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1163" class="line" lang="haskell"></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1159" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1159
</td>
<td class="diff-line-num new_line" data-linenumber="1164" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1164
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<pre style="margin: 0;"> <span id="LC1164" class="line" lang="haskell"><span class="n" style="color: #333;">equateTys</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">PmCt</span><span class="p">]</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1160" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1160
</td>
<td class="diff-line-num new_line" data-linenumber="1165" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1165
</td>
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<pre style="margin: 0;"> <span id="LC1165" class="line" lang="haskell"><span class="n" style="color: #333;">equateTys</span> <span class="n" style="color: #333;">ts</span> <span class="n" style="color: #333;">us</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre>
</td>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1671" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1676" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1671,7 +1676,7 @@ addCoreCt :: Nabla -> Id -> CoreExpr -> MaybeT DsM Nabla</td>
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1671
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1676
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<pre style="margin: 0;"> <span id="LC1676" class="line" lang="haskell"><span class="n" style="color: #333;">addCoreCt</span> <span class="n" style="color: #333;">nabla</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1672" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1672
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<td class="diff-line-num new_line" data-linenumber="1677" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1677
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<pre style="margin: 0;"> <span id="LC1677" class="line" lang="haskell">  <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1673" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1673
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<td class="diff-line-num new_line" data-linenumber="1678" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1678
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<pre style="margin: 0;"> <span id="LC1678" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">e'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">simpleOptExpr</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">e</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1674" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1674
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<td class="diff-line-num new_line old" data-linenumber="1679" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC1674" class="line" lang="haskell">  <span class="n" style="color: #333;">lift</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">tracePm</span> <span class="s" style="color: #d14;">"addCoreCt"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">e'</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1675" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="1679" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1679
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<pre style="margin: 0;">+<span id="LC1679" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right">-- </span>lift $ tracePm "addCoreCt" (ppr x <+> dcolon <+> ppr (idType x) $$ ppr e $$ ppr e')</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1675" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1675
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<td class="diff-line-num new_line" data-linenumber="1680" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1680
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<pre style="margin: 0;"> <span id="LC1680" class="line" lang="haskell">  <span class="n" style="color: #333;">execStateT</span> <span class="p">(</span><span class="n" style="color: #333;">core_expr</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">e'</span><span class="p">)</span> <span class="n" style="color: #333;">nabla</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1676" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1676
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<td class="diff-line-num new_line" data-linenumber="1681" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1681
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<pre style="margin: 0;"> <span id="LC1681" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1677" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1677
</td>
<td class="diff-line-num new_line" data-linenumber="1682" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1682
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<pre style="margin: 0;"> <span id="LC1682" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- | Takes apart a 'CoreExpr' and tries to extract as much information about</span></span>
</pre>
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