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<h3>
Shayne Fletcher pushed to branch wip/T18599
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce">634e8b86</a></strong>
<div>
<span>by Shayne Fletcher</span>
<i>at 2020-08-30T13:42:08-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add an HsExpr case 'GetField'

Some syntax is added for get field expressions but we don't yet have the parser create terms of that syntax.
- Adds a new AST node 'GetField';
- Give definitions for known incomplete pattern matches;
- Update the parser to compute `Located FastString`s for fields.
</pre>
</li>
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<h4>7 changed files:</h4>
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<li class="file-stats">
<a href="#cc97d81e7223ad4a3a5e801156ca632f9fa75654">
compiler/GHC/Hs/Expr.hs
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<li class="file-stats">
<a href="#576dff4e64fa03683ffc5dcdd58284acdd70bc8e">
compiler/GHC/Hs/Extension.hs
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<li class="file-stats">
<a href="#9f00edfedb0f969865b049a78de3866545b4a60b">
compiler/GHC/Hs/Instances.hs
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<li class="file-stats">
<a href="#6bdd5abc649727f2a802bc96ce5c276de19d3726">
compiler/GHC/HsToCore/Expr.hs
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<a href="#bf951467d4a9aa443cb109cb4c84a2891945649b">
compiler/GHC/Parser.y
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<a href="#446cb12ca6cefaf1c6eb79b7db643632744263c7">
compiler/GHC/Parser/PostProcess.hs
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<li class="file-stats">
<a href="#93bba9b9e0195db135fec54160523a427ea042fd">
compiler/GHC/Tc/Types/Origin.hs
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<h4>Changes:</h4>
<li id="cc97d81e7223ad4a3a5e801156ca632f9fa75654">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#cc97d81e7223ad4a3a5e801156ca632f9fa75654"><strong>compiler/GHC/Hs/Expr.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">@@ -457,6 +457,21 @@ data HsExpr p</td>
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<pre style="margin: 0;"> <span id="LC457" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- For a type family, the arg types are of the *instance* tycon,</span></span>
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<pre style="margin: 0;"> <span id="LC458" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- not the family tycon</span></span>
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<pre style="margin: 0;"> <span id="LC459" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC460" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- | Record projections</span></span>
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<pre style="margin: 0;">+<span id="LC461" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC462" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- A get_field @fIELD arg expression.</span></span>
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<pre style="margin: 0;">+<span id="LC463" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- e.g. z.x = GetField {</span></span>
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<pre style="margin: 0;">+<span id="LC464" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">--   gf_ext=noExtField, gf_expr=z, gf_fIELD=x, gf_getField = getField @"x" z</span></span>
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<pre style="margin: 0;">+<span id="LC465" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">--  }.</span></span>
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<pre style="margin: 0;">+<span id="LC466" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">GetField</span></span>
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<pre style="margin: 0;">+<span id="LC467" class="line" lang="haskell">       <span class="p">{</span> <span class="n" style="color: #333;">gf_ext</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">XGetField</span> <span class="n" style="color: #333;">p</span></span>
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<pre style="margin: 0;">+<span id="LC468" class="line" lang="haskell">       <span class="p">,</span> <span class="n" style="color: #333;">gf_expr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="n" style="color: #333;">p</span></span>
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<pre style="margin: 0;">+<span id="LC469" class="line" lang="haskell">       <span class="p">,</span> <span class="n" style="color: #333;">gf_fIELD</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Located</span> <span class="kt" style="color: #458; font-weight: 600;">FastString</span></span>
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<pre style="margin: 0;">+<span id="LC470" class="line" lang="haskell">       <span class="p">,</span> <span class="n" style="color: #333;">gf_getField</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="n" style="color: #333;">p</span> <span class="c1" style="color: #998; font-style: italic;">-- Equivalent 'getField' term.</span></span>
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<pre style="margin: 0;">+<span id="LC471" class="line" lang="haskell">       <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC472" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Expressions of this case only arise when the RecordDotSyntax</span></span>
</pre>
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473
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<pre style="margin: 0;">+<span id="LC473" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- langauge extensions is enabled.</span></span>
</pre>
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474
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<pre style="margin: 0;">+<span id="LC474" class="line" lang="haskell"></span>
</pre>
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460
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<td class="diff-line-num new_line" data-linenumber="475" 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">
475
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<pre style="margin: 0;"> <span id="LC475" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- | Expression with an explicit type signature. @e :: type@</span></span>
</pre>
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461
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<td class="diff-line-num new_line" data-linenumber="476" 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">
476
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<pre style="margin: 0;"> <span id="LC476" 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="462" 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">
462
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<td class="diff-line-num new_line" data-linenumber="477" 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">
477
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<pre style="margin: 0;"> <span id="LC477" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">--  - 'GHC.Parser.Annotation.AnnKeywordId' : 'GHC.Parser.Annotation.AnnDcolon'</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="580" 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="595" 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">@@ -580,6 +595,9 @@ data RecordUpdTc = RecordUpdTc</td>
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580
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<td class="diff-line-num new_line" data-linenumber="595" 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">
595
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<pre style="margin: 0;"> <span id="LC595" class="line" lang="haskell">      <span class="p">,</span> <span class="n" style="color: #333;">rupd_wrap</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">HsWrapper</span>  <span class="c1" style="color: #998; font-style: italic;">-- See note [Record Update HsWrapper]</span></span>
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581
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596
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<pre style="margin: 0;"> <span id="LC596" class="line" lang="haskell">      <span class="p">}</span></span>
</pre>
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582
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597
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<pre style="margin: 0;"> <span id="LC597" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="583" 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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598
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<pre style="margin: 0;">+<span id="LC598" class="line" lang="haskell"><span class="cd">-- | Extra data fields for a 'GetField', added by the type checker</span></span>
</pre>
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599
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<pre style="margin: 0;">+<span id="LC599" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">GetFieldTc</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">GetFieldTc</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="600" 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">
600
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<pre style="margin: 0;">+<span id="LC600" class="line" lang="haskell"></span>
</pre>
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583
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<td class="diff-line-num new_line" data-linenumber="601" 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">
601
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<pre style="margin: 0;"> <span id="LC601" class="line" lang="haskell"><span class="cd">-- | HsWrap appears only in typechecker output</span></span>
</pre>
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584
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<td class="diff-line-num new_line" data-linenumber="602" 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">
602
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<pre style="margin: 0;"> <span id="LC602" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Invariant: The contained Expr is *NOT* itself an HsWrap.</span></span>
</pre>
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585
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603
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<pre style="margin: 0;"> <span id="LC603" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Detecting forced eta expansion] in "GHC.HsToCore.Expr".</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="648" 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="666" 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">@@ -648,6 +666,10 @@ type instance XRecordUpd     GhcPs = NoExtField</td>
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648
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666
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<pre style="margin: 0;"> <span id="LC666" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XRecordUpd</span>     <span class="kt" style="color: #458; font-weight: 600;">GhcRn</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoExtField</span></span>
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649
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<td class="diff-line-num new_line" data-linenumber="667" 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">
667
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<pre style="margin: 0;"> <span id="LC667" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XRecordUpd</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;">RecordUpdTc</span></span>
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<pre style="margin: 0;"> <span id="LC668" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC669" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XGetField</span>     <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoExtField</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="651" 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="670" 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">
670
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<pre style="margin: 0;">+<span id="LC670" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XGetField</span>     <span class="kt" style="color: #458; font-weight: 600;">GhcRn</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoExtField</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="651" 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="671" 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">
671
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<pre style="margin: 0;">+<span id="LC671" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XGetField</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;">GetFieldTc</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="651" 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="672" 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">
672
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<pre style="margin: 0;">+<span id="LC672" class="line" lang="haskell"></span>
</pre>
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651
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<td class="diff-line-num new_line" data-linenumber="673" 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">
673
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<pre style="margin: 0;"> <span id="LC673" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XExprWithTySig</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GhcPass</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoExtField</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="652" 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">
652
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<td class="diff-line-num new_line" data-linenumber="674" 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">
674
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<pre style="margin: 0;"> <span id="LC674" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="653" 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">
653
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<td class="diff-line-num new_line" data-linenumber="675" 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">
675
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<pre style="margin: 0;"> <span id="LC675" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">XArithSeq</span>      <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">NoExtField</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1193" 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="1215" 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">@@ -1193,6 +1215,9 @@ ppr_expr (RecordCon { rcon_con_name = con_id, rcon_flds = rbinds })</td>
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1193
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<td class="diff-line-num new_line" data-linenumber="1215" 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">
1215
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<pre style="margin: 0;"> <span id="LC1215" class="line" lang="haskell"><span class="n" style="color: #333;">ppr_expr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RecordUpd</span> <span class="p">{</span> <span class="n" style="color: #333;">rupd_expr</span> <span class="o" style="font-weight: 600;">=</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;">aexp</span><span class="p">,</span> <span class="n" style="color: #333;">rupd_flds</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">rbinds</span> <span class="p">})</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1194" 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">
1194
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<td class="diff-line-num new_line" data-linenumber="1216" 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">
1216
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<pre style="margin: 0;"> <span id="LC1216" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">aexp</span><span class="p">)</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">braces</span> <span class="p">(</span><span class="n" style="color: #333;">fsep</span> <span class="p">(</span><span class="n" style="color: #333;">punctuate</span> <span class="n" style="color: #333;">comma</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;">rbinds</span><span class="p">))))</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1195" 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">
1195
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<td class="diff-line-num new_line" data-linenumber="1217" 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">
1217
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<pre style="margin: 0;"> <span id="LC1217" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1196" 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="1218" 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">
1218
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<pre style="margin: 0;">+<span id="LC1218" class="line" lang="haskell"><span class="n" style="color: #333;">ppr_expr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GetField</span> <span class="p">{</span> <span class="n" style="color: #333;">gf_expr</span> <span class="o" style="font-weight: 600;">=</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;">fexp</span><span class="p">,</span> <span class="n" style="color: #333;">gf_fIELD</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">field</span><span class="p">,</span> <span class="n" style="color: #333;">gf_getField</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">})</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1196" 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="1219" 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">
1219
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<pre style="margin: 0;">+<span id="LC1219" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">fexp</span> <span class="o" style="font-weight: 600;"><></span> <span class="n" style="color: #333;">dot</span> <span class="o" style="font-weight: 600;"><></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">field</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1196" 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="1220" 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">
1220
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<pre style="margin: 0;">+<span id="LC1220" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1196" 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">
1196
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<td class="diff-line-num new_line" data-linenumber="1221" 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">
1221
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<pre style="margin: 0;"> <span id="LC1221" class="line" lang="haskell"><span class="n" style="color: #333;">ppr_expr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ExprWithTySig</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">sig</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1197" 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">
1197
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<td class="diff-line-num new_line" data-linenumber="1222" 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">
1222
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<pre style="margin: 0;"> <span id="LC1222" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">ppr_lexpr</span> <span class="n" style="color: #333;">expr</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span><span class="p">)</span></span>
</pre>
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1198
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1223
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<pre style="margin: 0;"> <span id="LC1223" class="line" lang="haskell">         <span class="mi" style="color: #099;">4</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">sig</span><span class="p">)</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1347" 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="1372" 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">@@ -1347,6 +1372,10 @@ hsExprNeedsParens p = go</td>
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<pre style="margin: 0;"> <span id="LC1372" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsBinTick</span> <span class="kr" style="font-weight: 600;">_</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;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">e</span><span class="p">))</span>      <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">e</span></span>
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<td class="diff-line-num old_line" data-linenumber="1348" 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="1373" 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="LC1373" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RecordCon</span><span class="p">{})</span>                  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1349" 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">
1349
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<td class="diff-line-num new_line" data-linenumber="1374" 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">
1374
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<pre style="margin: 0;"> <span id="LC1374" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsRecFld</span><span class="p">{})</span>                   <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1350" 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="1375" 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="LC1375" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- To be honest I'm not sure right now but we know that projection</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1350" 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="1376" 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="LC1376" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- has higher precedence than application since f r.a.b parses as</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1350" 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="1377" 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="LC1377" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- f (r.a.b) so I'm going to with False for the moment.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1350" 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="1378" 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="LC1378" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GetField</span><span class="p">{})</span>                   <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="1350" 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="1379" 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="LC1379" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">XExpr</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="1351" 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="1380" 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="LC1380" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">GhcTc</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">ghcPass</span> <span class="o" style="font-weight: 600;">@</span><span class="n" style="color: #333;">p</span></span>
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<td class="diff-line-num new_line" data-linenumber="1381" 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="LC1381" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">x</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<br>
</li>
<li id="576dff4e64fa03683ffc5dcdd58284acdd70bc8e">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#576dff4e64fa03683ffc5dcdd58284acdd70bc8e"><strong>compiler/GHC/Hs/Extension.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="555" 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="555" 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">@@ -555,6 +555,7 @@ type family XDo             x</td>
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<td class="diff-line-num new_line" data-linenumber="555" 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="LC555" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XExplicitList</span>   <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC556" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XRecordCon</span>      <span class="n" style="color: #333;">x</span></span>
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<td class="diff-line-num new_line" data-linenumber="557" 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="LC557" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XRecordUpd</span>      <span class="n" style="color: #333;">x</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="558" 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="558" 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="LC558" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XGetField</span>       <span class="n" style="color: #333;">x</span></span>
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<td class="diff-line-num new_line" data-linenumber="559" 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="LC559" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XExprWithTySig</span>  <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC560" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XArithSeq</span>       <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC561" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">XBracket</span>        <span class="n" style="color: #333;">x</span></span>
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<li id="9f00edfedb0f969865b049a78de3866545b4a60b">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#9f00edfedb0f969865b049a78de3866545b4a60b"><strong>compiler/GHC/Hs/Instances.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="345" 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="345" 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">@@ -345,6 +345,7 @@ deriving instance Data (ArithSeqInfo GhcTc)</td>
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<pre style="margin: 0;"> <span id="LC345" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC346" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">deriving</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Data</span> <span class="kt" style="color: #458; font-weight: 600;">RecordConTc</span></span>
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<pre style="margin: 0;"> <span id="LC347" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">deriving</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Data</span> <span class="kt" style="color: #458; font-weight: 600;">RecordUpdTc</span></span>
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<td class="diff-line-num new old_line" data-linenumber="348" 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="LC348" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">deriving</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Data</span> <span class="kt" style="color: #458; font-weight: 600;">GetFieldTc</span></span>
</pre>
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<td class="diff-line-num new_line" data-linenumber="349" 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="LC349" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">deriving</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Data</span> <span class="kt" style="color: #458; font-weight: 600;">CmdTopTc</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC350" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">deriving</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Data</span> <span class="kt" style="color: #458; font-weight: 600;">PendingRnSplice</span></span>
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<pre style="margin: 0;"> <span id="LC351" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">deriving</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Data</span> <span class="kt" style="color: #458; font-weight: 600;">PendingTcSplice</span></span>
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<br>
</li>
<li id="6bdd5abc649727f2a802bc96ce5c276de19d3726">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#6bdd5abc649727f2a802bc96ce5c276de19d3726"><strong>compiler/GHC/HsToCore/Expr.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="269" 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="269" 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">@@ -269,6 +269,10 @@ dsExpr (HsConLikeOut _ con)   = dsConLike con</td>
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<td class="diff-line-num old_line" data-linenumber="269" 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="LC269" class="line" lang="haskell"><span class="n" style="color: #333;">dsExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsIPVar</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;">"dsExpr: HsIPVar"</span></span>
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<pre style="margin: 0;"> <span id="LC270" class="line" lang="haskell"><span class="n" style="color: #333;">dsExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsOverLabel</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;">"dsExpr: HsOverLabel"</span></span>
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<td class="diff-line-num new_line" data-linenumber="271" 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="LC271" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="272" 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="272" 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="LC272" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- I feel these should have been eliminated by their equivalent</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="272" 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="273" 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="LC273" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- getField expressions by now.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="272" 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="274" 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="LC274" class="line" lang="haskell"><span class="n" style="color: #333;">dsExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GetField</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;">"dsExpr: GetField"</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="272" 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="275" 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="LC275" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;"> <span id="LC276" class="line" lang="haskell"><span class="n" style="color: #333;">dsExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsLit</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">lit</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC277" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">warnAboutOverflowedLit</span> <span class="n" style="color: #333;">lit</span></span>
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<pre style="margin: 0;"> <span id="LC278" class="line" lang="haskell">       <span class="p">;</span> <span class="n" style="color: #333;">dsLit</span> <span class="p">(</span><span class="n" style="color: #333;">convertLit</span> <span class="n" style="color: #333;">lit</span><span class="p">)</span> <span class="p">}</span></span>
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</li>
<li id="bf951467d4a9aa443cb109cb4c84a2891945649b">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#bf951467d4a9aa443cb109cb4c84a2891945649b"><strong>compiler/GHC/Parser.y</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">@@ -3281,13 +3281,13 @@ pbind  :: { LHsExpr GhcPs -> LHsExpr GhcPs }</td>
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<pre style="margin: 0;"> <span id="LC3281" class="line" lang="haskell">                    <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">{</span> <span class="p">;</span> <span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">=</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="c1" style="color: #998; font-style: italic;">-- foo</span></span>
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<pre style="margin: 0;"> <span id="LC3282" class="line" lang="haskell">                            <span class="p">;</span> <span class="n" style="color: #333;">fields</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">top</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">reverse</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">3</span> <span class="c1" style="color: #998; font-style: italic;">-- [foo, bar, baz, quux]</span></span>
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<pre style="margin: 0;"> <span id="LC3283" class="line" lang="haskell">                            <span class="p">;</span> <span class="n" style="color: #333;">final</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">last</span> <span class="n" style="color: #333;">fields</span>  <span class="c1" style="color: #998; font-style: italic;">-- quux</span></span>
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<pre style="margin: 0;">-<span id="LC3284" class="line" lang="haskell">                            <span class="p">;</span> <span class="n" style="color: #333;">arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkVar</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">unpackFS</span> <span class="n" style="color: #333;"><span class="idiff left right">final</span></span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC3284" class="line" lang="haskell">                            <span class="p">;</span> <span class="n" style="color: #333;">arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkVar</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">unpackFS</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">unLoc</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">final</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC3285" class="line" lang="haskell">                          <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC3286" class="line" lang="haskell">                    <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkFieldUpdater</span> <span class="n" style="color: #333;">fields</span> <span class="n" style="color: #333;">arg</span></span>
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<pre style="margin: 0;"> <span id="LC3287" class="line" lang="haskell">                  <span class="p">}</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC3288" class="line" lang="haskell">         <span class="p">}}</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC3289" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;">-<span id="LC3290" class="line" lang="haskell"><span class="n" style="color: #333;">fieldToUpdate</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">{</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">FastString</span><span class="p">]</span> <span class="p">}</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC3290" class="line" lang="haskell"><span class="n" style="color: #333;">fieldToUpdate</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">{</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span><span class="p">]</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC3291" class="line" lang="haskell"><span class="n" style="color: #333;">fieldToUpdate</span></span>
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<pre style="margin: 0;"> <span id="LC3292" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- See Note [Whitespace-sensitive operator parsing] in Lexer.x</span></span>
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<pre style="margin: 0;"> <span id="LC3293" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">fieldToUpdate</span> <span class="kt" style="color: #458; font-weight: 600;">TIGHT_INFIX_PROJ</span> <span class="n" style="color: #333;">field</span> <span class="p">{</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">3</span> <span class="o" style="font-weight: 600;">:</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="p">}</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="3585" 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="3585" 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">@@ -3585,9 +3585,9 @@ qvar    :: { Located RdrName }</td>
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<pre style="margin: 0;"> <span id="LC3585" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- whether it's a qvar or a var can be postponed until</span></span>
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<pre style="margin: 0;"> <span id="LC3586" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- *after* we see the close paren.</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC3587" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC3588" class="line" lang="haskell"><span class="n" style="color: #333;">field</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">{</span> <span class="kt" style="color: #458; font-weight: 600;">FastString</span>  <span class="p">}</span></span>
</pre>
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<pre style="margin: 0;">-<span id="LC3589" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">:</span> <span class="kt" style="color: #458; font-weight: 600;">VARID</span> <span class="p">{</span> <span class="n" style="color: #333;">getVARID</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC3590" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">QVARID</span> <span class="p">{</span> <span class="n" style="color: #333;">snd</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">getQVARID</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC3588" class="line" lang="haskell"><span class="n" style="color: #333;">field</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">{</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span>  <span class="p">}</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC3589" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">:</span> <span class="kt" style="color: #458; font-weight: 600;">VARID</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left">sL1</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$!</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">getVARID</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="p">}</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC3590" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">QVARID</span> <span class="p">{</span> <span class="n" style="color: #333;">s<span class="idiff left">L1</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$!</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">s</span>nd</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">getQVARID</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC3591" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC3592" class="line" lang="haskell"><span class="n" style="color: #333;">qvarid</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">{</span> <span class="kt" style="color: #458; font-weight: 600;">Located</span> <span class="kt" style="color: #458; font-weight: 600;">RdrName</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC3593" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">varid</span>               <span class="p">{</span> <span class="o" style="font-weight: 600;">$</span><span class="mi" style="color: #099;">1</span> <span class="p">}</span></span>
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</li>
<li id="446cb12ca6cefaf1c6eb79b7db643632744263c7">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#446cb12ca6cefaf1c6eb79b7db643632744263c7"><strong>compiler/GHC/Parser/PostProcess.hs</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2929" 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">@@ -2929,7 +2929,7 @@ circ = noLoc $ HsVar  noExtField (noLoc $ mkRdrUnqual (mkVarOcc "."))</td>
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<pre style="margin: 0;"> <span id="LC2929" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- mkProj rhs fIELD calculates a projection.</span></span>
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<pre style="margin: 0;"> <span id="LC2930" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- e.g. .x = mkProj Nothing x = \z -> z.x = \z -> (getField @fIELD x)</span></span>
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<pre style="margin: 0;"> <span id="LC2931" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      .x.y = mkProj Just(.x) y = (.y) . (.x) = (\z -> z.y) . (\z -> z.x)</span></span>
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<pre style="margin: 0;">-<span id="LC2932" class="line" lang="haskell"><span class="n" style="color: #333;">mkProj</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;">+<span id="LC2932" class="line" lang="haskell"><span class="n" style="color: #333;">mkProj</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;"> <span id="LC2933" class="line" lang="haskell"><span class="n" style="color: #333;">mkProj</span> <span class="n" style="color: #333;">rhs</span> <span class="n" style="color: #333;">fIELD</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;"> <span id="LC2934" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">body</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkGet</span> <span class="n" style="color: #333;">zVar</span> <span class="n" style="color: #333;">fIELD</span></span>
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<pre style="margin: 0;"> <span id="LC2935" class="line" lang="haskell">      <span class="n" style="color: #333;">grhs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noLoc</span> <span class="o" style="font-weight: 600;">$</span> <span class="kt" style="color: #458; font-weight: 600;">GRHS</span> <span class="n" style="color: #333;">noExtField</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="n" style="color: #333;">body</span></span>
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<pre style="margin: 0;"> <span id="LC2940" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2941" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- mkGet arg fIELD calcuates a get_field @fIELD arg expression.</span></span>
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<pre style="margin: 0;"> <span id="LC2942" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- e.g. z.x = mkGet z x = get_field @x z</span></span>
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<pre style="margin: 0;">-<span id="LC2943" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;">+<span id="LC2943" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;"> <span id="LC2944" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet</span> <span class="n" style="color: #333;">arg</span> <span class="n" style="color: #333;">fIELD</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">head</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkGet'</span> <span class="p">[</span><span class="n" style="color: #333;">arg</span><span class="p">]</span> <span class="n" style="color: #333;">fIELD</span></span>
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<pre style="margin: 0;">-<span id="LC2945" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet'</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">]</span></span>
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<pre style="margin: 0;">-<span id="LC2946" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet'</span> <span class="n" style="color: #333;">l</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;">:</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="n" style="color: #333;"><span class="idiff left right">fIELD</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">get_field</span> <span class="p">`</span><span class="n" style="color: #333;">mkAppType</span><span class="p">`</span> <span class="n" style="color: #333;">mkSelector</span> <span class="n" style="color: #333;">fIELD</span> <span class="p">`</span><span class="n" style="color: #333;">mkApp</span><span class="p">`</span> <span class="n" style="color: #333;">mkParen</span> <span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">l</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC2945" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet'</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">]</span></span>
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<pre style="margin: 0;">+<span id="LC2946" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet'</span> <span class="n" style="color: #333;">l</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;">:</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">L</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">fIELD</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;">get_field</span> <span class="p">`</span><span class="n" style="color: #333;">mkAppType</span><span class="p">`</span> <span class="n" style="color: #333;">mkSelector</span> <span class="n" style="color: #333;">fIELD</span> <span class="p">`</span><span class="n" style="color: #333;">mkApp</span><span class="p">`</span> <span class="n" style="color: #333;">mkParen</span> <span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">l</span></span>
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<pre style="margin: 0;"> <span id="LC2947" class="line" lang="haskell"><span class="n" style="color: #333;">mkGet'</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">panic</span> <span class="s" style="color: #d14;">"mkGet' : The impossible has happened!"</span></span>
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<pre style="margin: 0;"> <span id="LC2948" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;"> <span id="LC2949" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- mkSet a fIELD b calculates a set_field @fIELD expression.</span></span>
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<pre style="margin: 0;"> <span id="LC2950" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- e.g mkSet a fIELD b = set_field @"fIELD" a b (read as "set field 'fIELD' on a to b").</span></span>
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<pre style="margin: 0;">-<span id="LC2951" class="line" lang="haskell"><span class="n" style="color: #333;">mkSet</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;">-<span id="LC2952" class="line" lang="haskell"><span class="n" style="color: #333;">mkSet</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;"><span class="idiff left right">fIELD</span></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">set_field</span> <span class="p">`</span><span class="n" style="color: #333;">mkAppType</span><span class="p">`</span> <span class="n" style="color: #333;">mkSelector</span> <span class="n" style="color: #333;">fIELD</span> <span class="p">`</span><span class="n" style="color: #333;">mkApp</span><span class="p">`</span> <span class="n" style="color: #333;">a</span> <span class="p">`</span><span class="n" style="color: #333;">mkApp</span><span class="p">`</span> <span class="n" style="color: #333;">b</span></span>
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<pre style="margin: 0;">+<span id="LC2951" class="line" lang="haskell"><span class="n" style="color: #333;">mkSet</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;">+<span id="LC2952" class="line" lang="haskell"><span class="n" style="color: #333;">mkSet</span> <span class="n" style="color: #333;">a</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">L</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">fIELD</span></span><span class="p"><span class="idiff right">)</span></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">set_field</span> <span class="p">`</span><span class="n" style="color: #333;">mkAppType</span><span class="p">`</span> <span class="n" style="color: #333;">mkSelector</span> <span class="n" style="color: #333;">fIELD</span> <span class="p">`</span><span class="n" style="color: #333;">mkApp</span><span class="p">`</span> <span class="n" style="color: #333;">a</span> <span class="p">`</span><span class="n" style="color: #333;">mkApp</span><span class="p">`</span> <span class="n" style="color: #333;">b</span></span>
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<pre style="margin: 0;"> <span id="LC2953" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2954" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- mkFieldUpdater calculates functions representing dot notation record updates.</span></span>
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<pre style="margin: 0;">-<span id="LC2955" class="line" lang="haskell"><span class="n" style="color: #333;">mkFieldUpdater</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">FastString</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2955" class="line" lang="haskell"><span class="n" style="color: #333;">mkFieldUpdater</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC2956" class="line" lang="haskell"><span class="n" style="color: #333;">mkFieldUpdater</span> <span class="c1" style="color: #998; font-style: italic;">-- e.g {foo.bar.baz.quux = 43}</span></span>
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<pre style="margin: 0;"> <span id="LC2957" class="line" lang="haskell">  <span class="n" style="color: #333;">fIELDS</span> <span class="c1" style="color: #998; font-style: italic;">-- [foo, bar, baz, quux]</span></span>
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<pre style="margin: 0;"> <span id="LC2958" class="line" lang="haskell">  <span class="n" style="color: #333;">arg</span> <span class="c1" style="color: #998; font-style: italic;">-- This is 'texp' (43 in the example).</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">@@ -2967,26 +2967,26 @@ mkFieldUpdater -- e.g {foo.bar.baz.quux = 43}</td>
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<pre style="margin: 0;"> <span id="LC2967" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">in</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">foldl'</span> <span class="n" style="color: #333;">mkSet'</span> <span class="n" style="color: #333;">arg</span> <span class="p">(</span><span class="n" style="color: #333;">zips</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC2968" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- setField@"foo" (a) (setField@"bar" (getField @"foo" (a))(setField@"baz" (getField @"bar" (getField @"foo" (a)))(setField@"quux" (getField @"baz" (getField @"bar" (getField @"foo" (a))))(quux))))</span></span>
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<pre style="margin: 0;"> <span id="LC2969" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC2970" class="line" lang="haskell">      <span class="n" style="color: #333;">mkSet'</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FastString</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;">+<span id="LC2970" class="line" lang="haskell">      <span class="n" style="color: #333;">mkSet'</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Located</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">FastString</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;"> <span id="LC2971" class="line" lang="haskell">      <span class="n" style="color: #333;">mkSet'</span> <span class="n" style="color: #333;">acc</span> <span class="p">(</span><span class="n" style="color: #333;">fIELD</span><span class="p">,</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkSet</span> <span class="p">(</span><span class="n" style="color: #333;">mkParen</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="n" style="color: #333;">fIELD</span> <span class="p">(</span><span class="n" style="color: #333;">mkParen</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC2972" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2973" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Called from mkRdrRecordUpd.</span></span>
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<pre style="margin: 0;"> <span id="LC2974" class="line" lang="haskell"><span class="n" style="color: #333;">mkSetField</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsRecUpdField</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
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<pre style="margin: 0;">-<span id="LC2975" class="line" lang="haskell"><span class="n" style="color: #333;">mkSetField</span> <span class="n" style="color: #333;">e</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="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsRecField</span> <span class="n" style="color: #333;">occ</span> <span class="n" style="color: #333;">arg</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">))</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkSet</span> <span class="n" style="color: #333;">e</span> <span class="p">(</span><span class="n" style="color: #333;">fsLit</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">field</span> <span class="n" style="color: #333;">occ</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">val</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>
</pre>
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2975
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<pre style="margin: 0;">+<span id="LC2975" class="line" lang="haskell"><span class="n" style="color: #333;">mkSetField</span> <span class="n" style="color: #333;">e</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="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsRecField</span> <span class="n" style="color: #333;">occ</span> <span class="n" style="color: #333;">arg</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">))</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre>
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2976
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<pre style="margin: 0;">+<span id="LC2976" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="n" style="color: #333;">loc</span><span class="p">,</span> <span class="n" style="color: #333;">f</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">field</span> <span class="n" style="color: #333;">occ</span> <span class="kr" style="font-weight: 600;">in</span>  <span class="n" style="color: #333;">mkSet</span> <span class="n" style="color: #333;">e</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">loc</span> <span class="p">(</span><span class="n" style="color: #333;">fsLit</span> <span class="n" style="color: #333;">f</span><span class="p">))</span> <span class="p">(</span><span class="n" style="color: #333;">val</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>
</pre>
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2976
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<td class="diff-line-num new_line" data-linenumber="2977" 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">
2977
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<pre style="margin: 0;"> <span id="LC2977" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
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2977
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<td class="diff-line-num new_line" data-linenumber="2978" 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">
2978
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<pre style="margin: 0;"> <span id="LC2978" class="line" lang="haskell">    <span class="n" style="color: #333;">val</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span></span>
</pre>
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2978
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<td class="diff-line-num new_line old" data-linenumber="2979" 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="LC2978" class="line" lang="haskell">    <span class="n" style="color: #333;">val</span> <span class="n" style="color: #333;">arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">isPun</span> <span class="n" style="color: #333;">arg</span> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">mkVar</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;"><span class="idiff left">field</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">occ</span></span> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">arg</span></span>
</pre>
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2979
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<pre style="margin: 0;">+<span id="LC2979" class="line" lang="haskell">    <span class="n" style="color: #333;">val</span> <span class="n" style="color: #333;">arg</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">isPun</span> <span class="n" style="color: #333;">arg</span> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">mkVar</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;"><span class="idiff left">snd</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">field</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">occ</span></span><span class="p"><span class="idiff right">)</span></span> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">arg</span></span>
</pre>
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2979
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<td class="diff-line-num new_line" data-linenumber="2980" 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">
2980
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<pre style="margin: 0;"> <span id="LC2980" class="line" lang="haskell"></span>
</pre>
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2980
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<td class="diff-line-num new_line" data-linenumber="2981" 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">
2981
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<pre style="margin: 0;"> <span id="LC2981" class="line" lang="haskell">    <span class="n" style="color: #333;">isPun</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
</pre>
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2981
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<td class="diff-line-num new_line" data-linenumber="2982" 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">
2982
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<pre style="margin: 0;"> <span id="LC2982" class="line" lang="haskell">    <span class="n" style="color: #333;">isPun</span> <span class="o" style="font-weight: 600;">=</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">case</span></span>
</pre>
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2982
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<td class="diff-line-num new_line" data-linenumber="2983" 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">
2983
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<pre style="margin: 0;"> <span id="LC2983" class="line" lang="haskell">      <span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsVar</span> <span class="kr" style="font-weight: 600;">_</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;">p</span><span class="p">))</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">pun_RDR</span></span>
</pre>
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2983
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<td class="diff-line-num new_line" data-linenumber="2984" 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">
2984
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<pre style="margin: 0;"> <span id="LC2984" 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;">False</span></span>
</pre>
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2984
</td>
<td class="diff-line-num new_line" data-linenumber="2985" 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">
2985
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<pre style="margin: 0;"> <span id="LC2985" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2985" 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">
2985
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<td class="diff-line-num new_line old" data-linenumber="2986" 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="LC2985" class="line" lang="haskell">    <span class="n" style="color: #333;">field</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Located</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AmbiguousFieldOcc</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">String</span></span></span>
</pre>
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2986
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<pre style="margin: 0;">+<span id="LC2986" class="line" lang="haskell">    <span class="n" style="color: #333;">field</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Located</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AmbiguousFieldOcc</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">SrcSpan</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">String</span></span><span class="p"><span class="idiff right">)</span></span></span>
</pre>
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2986
</td>
<td class="diff-line-num new_line" data-linenumber="2987" 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">
2987
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<pre style="margin: 0;"> <span id="LC2987" class="line" lang="haskell">    <span class="n" style="color: #333;">field</span> <span class="o" style="font-weight: 600;">=</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">case</span></span>
</pre>
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2987
</td>
<td class="diff-line-num new_line old" data-linenumber="2988" 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="LC2987" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Ambiguous</span> <span class="kr" style="font-weight: 600;">_</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;">lbl</span><span class="p">))</span> <span class="o" style="font-weight: 600;">-></span>  <span class="n" style="color: #333;">occNameString</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">rdrNameOcc</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">lbl</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2988" 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">
2988
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<td class="diff-line-num new_line old" data-linenumber="2988" 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="LC2988" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Unambiguous</span> <span class="kr" style="font-weight: 600;">_</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;">lbl</span><span class="p">))</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">occNameString</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">rdrNameOcc</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">lbl</span></span>
</pre>
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2989
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<td class="diff-line-num new_line old" data-linenumber="2988" 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="LC2989" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="s" style="color: #d14;">""</span> <span class="c1" style="color: #998; font-style: italic;">-- Extension ctor.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="2990" 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>
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<pre style="margin: 0;">+<span id="LC2988" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Ambiguous</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">loc</span> <span class="n" style="color: #333;">lbl</span><span class="p">))</span> <span class="o" style="font-weight: 600;">-></span>  <span class="p">(</span><span class="n" style="color: #333;">loc</span><span class="p">,</span> <span class="n" style="color: #333;">occNameString</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">rdrNameOcc</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">lbl</span><span class="p">)</span></span>
</pre>
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</td>
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2989
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<pre style="margin: 0;">+<span id="LC2989" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Unambiguous</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">loc</span> <span class="n" style="color: #333;">lbl</span><span class="p">))</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="n" style="color: #333;">loc</span><span class="p">,</span> <span class="n" style="color: #333;">occNameString</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">rdrNameOcc</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">lbl</span><span class="p">)</span></span>
</pre>
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2990
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<td class="diff-line-num new_line" data-linenumber="2990" 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">
2990
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<pre style="margin: 0;"> <span id="LC2990" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new_line" data-linenumber="2991" 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="LC2991" class="line" lang="haskell"><span class="n" style="color: #333;">applyFieldUpdates</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">P</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LHsExpr</span> <span class="kt" style="color: #458; font-weight: 600;">GhcPs</span><span class="p">)</span></span>
</pre>
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2992
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<pre style="margin: 0;"> <span id="LC2992" class="line" lang="haskell"><span class="n" style="color: #333;">applyFieldUpdates</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">updates</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">foldl'</span> <span class="n" style="color: #333;">apply</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">updates</span></span>
</pre>
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<br>
</li>
<li id="93bba9b9e0195db135fec54160523a427ea042fd">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/634e8b86483e8dabc2194e5d1705eff668025fce#93bba9b9e0195db135fec54160523a427ea042fd"><strong>compiler/GHC/Tc/Types/Origin.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="499" 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="499" 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">@@ -499,6 +499,7 @@ exprCtOrigin (HsAppType _ e1 _)   = lexprCtOrigin e1</td>
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<pre style="margin: 0;"> <span id="LC499" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OpApp</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">op</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span>     <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lexprCtOrigin</span> <span class="n" style="color: #333;">op</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC500" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NegApp</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">e</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span>       <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lexprCtOrigin</span> <span class="n" style="color: #333;">e</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC501" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HsPar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">e</span><span class="p">)</span>          <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lexprCtOrigin</span> <span class="n" style="color: #333;">e</span></span>
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502
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<pre style="margin: 0;">+<span id="LC502" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GetField</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">e</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span>   <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lexprCtOrigin</span> <span class="n" style="color: #333;">e</span></span>
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502
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<td class="diff-line-num new_line" data-linenumber="503" 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">
503
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<pre style="margin: 0;"> <span id="LC503" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SectionL</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span>     <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SectionOrigin</span></span>
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503
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504
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<pre style="margin: 0;"> <span id="LC504" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SectionR</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span>     <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SectionOrigin</span></span>
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504
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<td class="diff-line-num new_line" data-linenumber="505" 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">
505
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<pre style="margin: 0;"> <span id="LC505" class="line" lang="haskell"><span class="n" style="color: #333;">exprCtOrigin</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ExplicitTuple</span> <span class="p">{})</span>   <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Shouldn'tHappenOrigin</span> <span class="s" style="color: #d14;">"explicit tuple"</span></span>
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