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<h3>
Adam Gundry pushed to branch wip/amg/renamer-refactor
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41">5ceb206d</a></strong>
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<span>by Adam Gundry</span>
<i>at 2020-11-18T19:14:44+00:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Minor fixups
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<h4>6 changed files:</h4>
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<li class="file-stats">
<a href="#86d694037d496c511e28b2c09c8410f67dc19596">
compiler/GHC/Rename/Env.hs
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<li class="file-stats">
<a href="#e05ee69330b0f7088f11a5f3567137547489664d">
compiler/GHC/Rename/Names.hs
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<li class="file-stats">
<a href="#897218b3e24728ae9e5b0329b949493f1ede80fb">
compiler/GHC/Tc/Errors/Hole.hs
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<li class="file-stats">
<a href="#73cf7ada7d008f315e18676ed83f3a566fbbe679">
compiler/GHC/Tc/Gen/Export.hs
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<a href="#5d7c5ef0541bd4c1c950ecc95edf95171d20f538">
compiler/GHC/Tc/Utils/Backpack.hs
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<li class="file-stats">
<a href="#03e77c5a7f093768fb8c3be51f8c4ece06b78463">
compiler/GHC/Types/Name/Reader.hs
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<h4>Changes:</h4>
<li id="86d694037d496c511e28b2c09c8410f67dc19596">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41#86d694037d496c511e28b2c09c8410f67dc19596"><strong>compiler/GHC/Rename/Env.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">@@ -765,8 +765,7 @@ lookupSubBndrOcc warn_if_deprec the_parent doc rdr_name = do</td>
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765
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<pre style="margin: 0;"> <span id="LC765" class="line" lang="haskell"> <span class="n" style="color: #333;">lookupSubBndrOcc_helper</span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="n" style="color: #333;">warn_if_deprec</span> <span class="n" style="color: #333;">the_parent</span> <span class="n" style="color: #333;">rdr_name</span></span>
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766
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766
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<pre style="margin: 0;"> <span id="LC766" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">res</span> <span class="kr" style="font-weight: 600;">of</span></span>
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767
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<pre style="margin: 0;"> <span id="LC767" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">NameNotFound</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Left</span> <span class="p">(</span><span class="n" style="color: #333;">unknownSubordinateErr</span> <span class="n" style="color: #333;">doc</span> <span class="n" style="color: #333;">rdr_name</span><span class="p">))</span></span>
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768
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<pre style="margin: 0;">-<span id="LC768" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">FoundChild</span> <span class="n" style="color: #333;">_p</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ChildName</span> <span class="n" style="color: #333;">n</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="n" style="color: #333;">n</span><span class="p">)</span></span>
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769
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<pre style="margin: 0;">-<span id="LC769" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">FoundChild</span> <span class="n" style="color: #333;">_p</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ChildField</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="p">(</span><span class="n" style="color: #333;">flSelector</span> <span class="n" style="color: #333;">fl</span><span class="p">))</span> <span class="c1" style="color: #998; font-style: italic;">-- AMG TODO: really?</span></span>
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<pre style="margin: 0;">+<span id="LC768" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">FoundChild</span> <span class="n" style="color: #333;">_p</span> <span class="n" style="color: #333;">child</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="p">(</span><span class="n" style="color: #333;">childName</span> <span class="n" style="color: #333;">child</span><span class="p">))</span></span>
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<pre style="margin: 0;"> <span id="LC769" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">IncorrectParent</span> <span class="p">{}</span></span>
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<pre style="margin: 0;"> <span id="LC770" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See [Mismatched class methods and associated type families]</span></span>
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<pre style="margin: 0;"> <span id="LC771" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in TcInstDecls.</span></span>
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<li id="e05ee69330b0f7088f11a5f3567137547489664d">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41#e05ee69330b0f7088f11a5f3567137547489664d"><strong>compiler/GHC/Rename/Names.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">@@ -960,8 +960,9 @@ filterImports iface decl_spec (Just (want_hiding, L l import_items))</td>
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<pre style="margin: 0;"> <span id="LC960" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Dealing with imports]</span></span>
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961
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<pre style="margin: 0;"> <span id="LC961" class="line" lang="haskell"> <span class="n" style="color: #333;">imp_occ_env</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OccEnv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NameEnv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Child</span><span class="p">,</span> <span class="c1" style="color: #998; font-style: italic;">-- the name or field</span></span>
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962
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<pre style="margin: 0;"> <span id="LC962" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">AvailInfo</span><span class="p">,</span> <span class="c1" style="color: #998; font-style: italic;">-- the export item providing it</span></span>
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<pre style="margin: 0;">-<span id="LC963" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Name</span><span class="p">))</span> <span class="c1" style="color: #998; font-style: italic;">-- TODO comment</span></span>
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964
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<pre style="margin: 0;">-<span id="LC964" class="line" lang="haskell"> <span class="n" style="color: #333;">imp_occ_env</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkOccEnv_C</span> <span class="p">(</span><span class="n" style="color: #333;">plusNameEnv_C</span> <span class="n" style="color: #333;">combine</span><span class="p">)</span> <span class="p">[</span> <span class="p">(</span><span class="n" style="color: #333;">occName</span> <span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="n" style="color: #333;">mkNameEnv</span> <span class="p">[(</span><span class="n" style="color: #333;">childName</span> <span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="n" style="color: #333;">a</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">))])</span></span>
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<pre style="margin: 0;">+<span id="LC963" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Name</span><span class="p">))</span> <span class="c1" style="color: #998; font-style: italic;">-- the parent of associated types</span></span>
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<pre style="margin: 0;">+<span id="LC964" class="line" lang="haskell"> <span class="n" style="color: #333;">imp_occ_env</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkOccEnv_C</span> <span class="p">(</span><span class="n" style="color: #333;">plusNameEnv_C</span> <span class="n" style="color: #333;">combine</span><span class="p">)</span></span>
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965
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<pre style="margin: 0;">+<span id="LC965" class="line" lang="haskell"> <span class="p">[</span> <span class="p">(</span><span class="n" style="color: #333;">occName</span> <span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="n" style="color: #333;">mkNameEnv</span> <span class="p">[(</span><span class="n" style="color: #333;">childName</span> <span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="n" style="color: #333;">a</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">))])</span></span>
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965
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966
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<pre style="margin: 0;"> <span id="LC966" class="line" lang="haskell"> <span class="o" style="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;">all_avails</span></span>
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966
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967
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<pre style="margin: 0;"> <span id="LC967" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">availChildren</span> <span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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967
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968
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<pre style="margin: 0;"> <span id="LC968" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Dealing with imports]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -983,7 +984,8 @@ filterImports iface decl_spec (Just (want_hiding, L l import_items))</td>
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983
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984
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<pre style="margin: 0;"> <span id="LC984" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">c2</span><span class="p">,</span> <span class="n" style="color: #333;">a2</span><span class="p">,</span> <span class="n" style="color: #333;">mb2</span><span class="p">)</span></span>
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984
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985
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<pre style="margin: 0;"> <span id="LC985" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT2</span><span class="p">(</span> <span class="n" style="color: #333;">c1</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">c2</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">isNothing</span> <span class="n" style="color: #333;">mb1</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">isNothing</span> <span class="n" style="color: #333;">mb2</span> <span class="o" style="font-weight: 600;">&&</span> <span class="p">(</span><span class="n" style="color: #333;">isAvailTC</span> <span class="n" style="color: #333;">a1</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">isAvailTC</span> <span class="n" style="color: #333;">a2</span><span class="p">)</span></span>
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985
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986
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<pre style="margin: 0;"> <span id="LC986" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">c1</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">c2</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">a1</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">a2</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">mb1</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">mb2</span> <span class="p">)</span></span>
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986
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<pre style="margin: 0;">-<span id="LC986" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">isAvailTC</span> <span class="n" style="color: #333;">a1</span> <span class="kr" style="font-weight: 600;">then</span> <span class="p">(</span><span class="n" style="color: #333;">c1</span><span class="p">,</span> <span class="n" style="color: #333;">a1</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">else</span> <span class="p">(</span><span class="n" style="color: #333;">c2</span><span class="p">,</span> <span class="n" style="color: #333;">a2</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- AMG TODO: is Nothing right?</span></span>
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<pre style="margin: 0;">+<span id="LC987" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">isAvailTC</span> <span class="n" style="color: #333;">a1</span> <span class="kr" style="font-weight: 600;">then</span> <span class="p">(</span><span class="n" style="color: #333;">c1</span><span class="p">,</span> <span class="n" style="color: #333;">a1</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC988" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="p">(</span><span class="n" style="color: #333;">c1</span><span class="p">,</span> <span class="n" style="color: #333;">a2</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span></span>
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987
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989
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<pre style="margin: 0;"> <span id="LC989" class="line" lang="haskell"></span>
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990
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<pre style="margin: 0;"> <span id="LC990" class="line" lang="haskell"> <span class="n" style="color: #333;">isAvailTC</span> <span class="kt" style="color: #458; font-weight: 600;">AvailTC</span><span class="p">{}</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
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991
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<pre style="margin: 0;"> <span id="LC991" class="line" lang="haskell"> <span class="n" style="color: #333;">isAvailTC</span> <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>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41#897218b3e24728ae9e5b0329b949493f1ede80fb"><strong>compiler/GHC/Tc/Errors/Hole.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">@@ -22,7 +22,9 @@ import GHC.Tc.Utils.TcType</td>
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<pre style="margin: 0;"> <span id="LC22" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Core.Type</span></span>
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<pre style="margin: 0;"> <span id="LC23" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Core.DataCon</span></span>
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<pre style="margin: 0;"> <span id="LC24" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Name</span></span>
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<pre style="margin: 0;">-<span id="LC25" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Name.Reader</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">pprNameProvenance</span> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">GlobalRdrElt</span> <span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">globalRdrEnvElts</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">gre_name</span> <span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Name.Reader</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">pprNameProvenance</span> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">GlobalRdrElt</span> <span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC26" class="line" lang="haskell"> <span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">globalRdrEnvElts</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">gre_name</span></span>
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<pre style="margin: 0;">+<span id="LC27" class="line" lang="haskell"> <span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">isOverloadedRecFldGRE</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC28" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Builtin.Names</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">gHC_ERR</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC29" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Id</span></span>
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<pre style="margin: 0;"> <span id="LC30" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Var.Set</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">@@ -470,10 +472,12 @@ pprHoleFit (HFDC sWrp sWrpVars sTy sProv sMs) (HoleFit {..}) =</td>
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<pre style="margin: 0;"> <span id="LC472" class="line" lang="haskell"> <span class="n" style="color: #333;">holeVs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">sep</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">map</span> <span class="p">(</span><span class="n" style="color: #333;">parens</span> <span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"_"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span><span class="p">)</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">ppr</span><span class="p">)</span> <span class="n" style="color: #333;">hfMatches</span></span>
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<pre style="margin: 0;"> <span id="LC473" class="line" lang="haskell"> <span class="n" style="color: #333;">holeDisp</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">sMs</span> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">holeVs</span></span>
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<pre style="margin: 0;"> <span id="LC474" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">sep</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">replicate</span> <span class="p">(</span><span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">hfMatches</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"_"</span></span>
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<pre style="margin: 0;">-<span id="LC473" class="line" lang="haskell"> <span class="n" style="color: #333;">occDisp</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprPrefixOcc</span> <span class="o" style="font-weight: 600;">$</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">hfCand</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">-<span id="LC474" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">GreHFCand</span> <span class="n" style="color: #333;">gre</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">occName</span> <span class="n" style="color: #333;">gre</span></span>
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<pre style="margin: 0;">-<span id="LC475" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">NameHFCand</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">occName</span> <span class="n" style="color: #333;">name</span></span>
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<pre style="margin: 0;">-<span id="LC476" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">IdHFCand</span> <span class="n" style="color: #333;">id_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">occName</span> <span class="n" style="color: #333;">id_</span></span>
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<pre style="margin: 0;">+<span id="LC475" class="line" lang="haskell"> <span class="n" style="color: #333;">occDisp</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">hfCand</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">+<span id="LC476" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- AMG TODO: make OutputableBndr GlobalRdrElt instance that does the right thing?</span></span>
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<pre style="margin: 0;">+<span id="LC477" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">GreHFCand</span> <span class="n" style="color: #333;">gre</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isOverloadedRecFldGRE</span> <span class="n" style="color: #333;">gre</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprPrefixOcc</span> <span class="p">(</span><span class="n" style="color: #333;">occName</span> <span class="n" style="color: #333;">gre</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC478" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprPrefixOcc</span> <span class="p">(</span><span class="n" style="color: #333;">gre_name</span> <span class="n" style="color: #333;">gre</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC479" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">NameHFCand</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprPrefixOcc</span> <span class="n" style="color: #333;">name</span></span>
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<pre style="margin: 0;">+<span id="LC480" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">IdHFCand</span> <span class="n" style="color: #333;">id_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">pprPrefixOcc</span> <span class="n" style="color: #333;">id_</span></span>
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<pre style="margin: 0;"> <span id="LC481" class="line" lang="haskell"> <span class="n" style="color: #333;">tyDisp</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ppWhen</span> <span class="n" style="color: #333;">sTy</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">hfType</span></span>
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478
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482
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<pre style="margin: 0;"> <span id="LC482" class="line" lang="haskell"> <span class="n" style="color: #333;">has</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">not</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">null</span></span>
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483
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<pre style="margin: 0;"> <span id="LC483" class="line" lang="haskell"> <span class="n" style="color: #333;">wrapDisp</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ppWhen</span> <span class="p">(</span><span class="n" style="color: #333;">has</span> <span class="n" style="color: #333;">hfWrap</span> <span class="o" style="font-weight: 600;">&&</span> <span class="p">(</span><span class="n" style="color: #333;">sWrp</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">sWrpVars</span><span class="p">))</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">@@ -787,7 +791,7 @@ tcFilterHoleFits limit typed_hole ht@(hole_ty, _) candidates =</td>
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787
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<pre style="margin: 0;"> <span id="LC791" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">__GLASGOW_HASKELL__</span> <span class="o" style="font-weight: 600;"><=</span> <span class="mi" style="color: #099;">810</span></span>
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792
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<pre style="margin: 0;"> <span id="LC792" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">IdHFCand</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">idName</span> <span class="n" style="color: #333;">id</span></span>
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793
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<pre style="margin: 0;"> <span id="LC793" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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790
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<pre style="margin: 0;">-<span id="LC790" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">GreHFCand</span> <span class="n" style="color: #333;">gre</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">gre_name</span> <span class="n" style="color: #333;">gre</span><span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- AMG TODO dubious</span></span></span>
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<pre style="margin: 0;">+<span id="LC794" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">GreHFCand</span> <span class="n" style="color: #333;">gre</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">gre_name</span> <span class="n" style="color: #333;">gre</span></span>
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795
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<pre style="margin: 0;"> <span id="LC795" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">NameHFCand</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">name</span></span>
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<pre style="margin: 0;"> <span id="LC796" class="line" lang="haskell"> <span class="n" style="color: #333;">discard_it</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">subs</span> <span class="n" style="color: #333;">seen</span> <span class="n" style="color: #333;">maxleft</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">elts</span></span>
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797
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<pre style="margin: 0;"> <span id="LC797" class="line" lang="haskell"> <span class="n" style="color: #333;">keep_it</span> <span class="n" style="color: #333;">eid</span> <span class="n" style="color: #333;">eid_ty</span> <span class="n" style="color: #333;">wrp</span> <span class="n" style="color: #333;">ms</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">fit</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">subs</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">seen</span> <span class="n" style="color: #333;">eid</span><span class="p">)</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41#73cf7ada7d008f315e18676ed83f3a566fbbe679"><strong>compiler/GHC/Tc/Gen/Export.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">@@ -526,8 +526,8 @@ lookupChildrenExport spec_parent rdr_items =</td>
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<pre style="margin: 0;"> <span id="LC526" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Left</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">l</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IEName</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">ub</span><span class="p">))))}</span></span>
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527
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<pre style="margin: 0;"> <span id="LC527" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">FoundChild</span> <span class="n" style="color: #333;">par</span> <span class="n" style="color: #333;">child</span> <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;">checkPatSynParent</span> <span class="n" style="color: #333;">spec_parent</span> <span class="n" style="color: #333;">par</span> <span class="n" style="color: #333;">child</span></span>
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<pre style="margin: 0;"> <span id="LC528" 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="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">child</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">-<span id="LC529" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">ChildField</span> <span class="n" style="color: #333;">fl</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="p">(</span><span class="n" style="color: #333;">getLoc</span> <span class="n" style="color: #333;">n</span><span class="p">)</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC530" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">ChildName</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Left</span> <span class="p">(</span><span class="n" style="color: #333;">replaceLWrappedName</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">name</span><span class="p">)</span><span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- AMG TODO</span></span></span>
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<pre style="margin: 0;">+<span id="LC529" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">ChildField</span> <span class="n" style="color: #333;">fl</span> <span class="idiff left right"> </span><span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Right</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="p">(</span><span class="n" style="color: #333;">getLoc</span> <span class="n" style="color: #333;">n</span><span class="p">)</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC530" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">ChildName</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Left</span> <span class="p">(</span><span class="n" style="color: #333;">replaceLWrappedName</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">name</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC531" class="line" lang="haskell"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC532" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">IncorrectParent</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">g</span> <span class="n" style="color: #333;">td</span> <span class="n" style="color: #333;">gs</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithDcErr</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">g</span> <span class="n" style="color: #333;">td</span> <span class="n" style="color: #333;">gs</span></span>
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<pre style="margin: 0;"> <span id="LC533" class="line" lang="haskell"></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41#5d7c5ef0541bd4c1c950ecc95edf95171d20f538"><strong>compiler/GHC/Tc/Utils/Backpack.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">@@ -176,7 +176,7 @@ checkHsigIface tcg_env gr sig_iface</td>
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<pre style="margin: 0;"> <span id="LC176" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- be a reexport. In this case, make sure the 'Name' of the</span></span>
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<pre style="margin: 0;"> <span id="LC177" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- reexport matches the 'Name exported here.</span></span>
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<pre style="margin: 0;"> <span id="LC178" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="p">[</span><span class="n" style="color: #333;">gre</span><span class="p">]</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lookupGlobalRdrEnv</span> <span class="n" style="color: #333;">gr</span> <span class="p">(</span><span class="n" style="color: #333;">nameOccName</span> <span class="n" style="color: #333;">name</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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179
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<pre style="margin: 0;">-<span id="LC179" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">name'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gre_name</span> <span class="n" style="color: #333;">gre</span><span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- AMG TODO this looks fishy</span></span></span>
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<pre style="margin: 0;">+<span id="LC179" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">name'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">gre_name</span> <span class="n" style="color: #333;">gre</span></span>
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<pre style="margin: 0;"> <span id="LC180" class="line" lang="haskell"> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">/=</span> <span class="n" style="color: #333;">name'</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;"> <span id="LC181" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Error reporting bad reexport]</span></span>
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182
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<pre style="margin: 0;"> <span id="LC182" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- TODO: Actually this error swizzle doesn't work</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ceb206d45d7754acedc917af07e7a0646c0ef41#03e77c5a7f093768fb8c3be51f8c4ece06b78463"><strong>compiler/GHC/Types/Name/Reader.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">@@ -57,7 +57,7 @@ module GHC.Types.Name.Reader (</td>
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<pre style="margin: 0;"> <span id="LC57" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">greRdrNames</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">greSrcSpan</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">greQualModName</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC58" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">gresToAvailInfo</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC59" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">greDefinitionModule</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">greDefinitionSrcSpan</span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC60" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">gre_name</span><span class="p">,</span><span class="idiff left"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- AMG TODO: can we get rid of export?</span></span></span>
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<pre style="margin: 0;">+<span id="LC60" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">gre_name</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC61" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC62" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- ** Global 'RdrName' mapping elements: 'GlobalRdrElt', 'Provenance', 'ImportSpec'</span></span>
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<pre style="margin: 0;"> <span id="LC63" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">GlobalRdrElt</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">isLocalGRE</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">isRecFldGRE</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">isOverloadedRecFldGRE</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">greLabel</span><span class="p">,</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">@@ -750,10 +750,10 @@ gresToAvailInfo gres</td>
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<pre style="margin: 0;"> <span id="LC750" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC751" class="line" lang="haskell"> <span class="n" style="color: #333;">comb</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">GlobalRdrElt</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailInfo</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailInfo</span></span>
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<pre style="margin: 0;"> <span id="LC752" class="line" lang="haskell"> <span class="n" style="color: #333;">comb</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Avail</span> <span class="n" style="color: #333;">n</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Avail</span> <span class="n" style="color: #333;">n</span> <span class="c1" style="color: #998; font-style: italic;">-- Duplicated name, should not happen</span></span>
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<pre style="margin: 0;">-<span id="LC753" class="line" lang="haskell"> <span class="n" style="color: #333;">comb</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AvailFL</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AvailFL</span> <span class="n" style="color: #333;">fl</span> <span class="c1" style="color: #998; font-style: italic;">-- TODO: shouldn't happen either?</span></span>
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<pre style="margin: 0;">+<span id="LC753" class="line" lang="haskell"> <span class="n" style="color: #333;">comb</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AvailFL</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">AvailFL</span> <span class="n" style="color: #333;">fl</span> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">AMG </span>TODO: shouldn't happen either?</span></span>
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<pre style="margin: 0;"> <span id="LC754" class="line" lang="haskell"> <span class="n" style="color: #333;">comb</span> <span class="n" style="color: #333;">gre</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AvailTC</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">ns</span> <span class="n" style="color: #333;">fls</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC755" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">gre_par</span> <span class="n" style="color: #333;">gre</span><span class="p">,</span> <span class="n" style="color: #333;">gre_child</span> <span class="n" style="color: #333;">gre</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">-<span id="LC756" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NoParent</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ChildName</span> <span class="n" style="color: #333;">me</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailTC</span> <span class="n" style="color: #333;">m</span> <span class="p">(</span><span class="n" style="color: #333;">me</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ns</span><span class="p">)</span> <span class="n" style="color: #333;">fls</span> <span class="c1" style="color: #998; font-style: italic;">-- Not sure this ever happens -- TODO: AvailTC invariant?</span></span>
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<pre style="margin: 0;">+<span id="LC756" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NoParent</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ChildName</span> <span class="n" style="color: #333;">me</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailTC</span> <span class="n" style="color: #333;">m</span> <span class="p">(</span><span class="n" style="color: #333;">me</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ns</span><span class="p">)</span> <span class="n" style="color: #333;">fls</span> <span class="c1" style="color: #998; font-style: italic;">-- Not sure this ever happens -- <span class="idiff left right">AMG </span>TODO: AvailTC invariant?</span></span>
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<pre style="margin: 0;"> <span id="LC757" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NoParent</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ChildField</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailTC</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">ns</span> <span class="p">(</span><span class="n" style="color: #333;">fl</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">fls</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC758" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ParentIs</span> <span class="p">{},</span> <span class="kt" style="color: #458; font-weight: 600;">ChildName</span> <span class="n" style="color: #333;">me</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailTC</span> <span class="n" style="color: #333;">m</span> <span class="p">(</span><span class="n" style="color: #333;">insertChildIntoChildren</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">ns</span> <span class="n" style="color: #333;">me</span><span class="p">)</span> <span class="n" style="color: #333;">fls</span></span>
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<pre style="margin: 0;"> <span id="LC759" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ParentIs</span> <span class="p">{},</span> <span class="kt" style="color: #458; font-weight: 600;">ChildField</span> <span class="n" style="color: #333;">fl</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AvailTC</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">ns</span> <span class="p">(</span><span class="n" style="color: #333;">fl</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">fls</span><span class="p">)</span></span>
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