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GitLab

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<h3>

 Marge Bot pushed to branch master

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/7f8be3eb3440a152246a1aef7b4020be4c03cf2e">7f8be3eb</a></strong>

<div>

<span>by Richard Eisenberg</span>

<i>at 2020-10-29T22:08:13-04:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove unnecessary gender from comments/docs

While, say, alternating "he" and "she" in sequential writing

may be nicer than always using "they", reading code/documentation

is almost never sequential. If this small change makes individuals

feel more welcome in GHC's codebase, that's a good thing.

</pre>

</li>

</ul>

<h4>16 changed files:</h4>

<ul>

<li class="file-stats">

<a href="#bd153f89bc48f3fd5079b51fb799808aacbd750c">

compiler/GHC/Core/Opt/Pipeline.hs

</a>

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<li class="file-stats">

<a href="#b6a5ba32bafb8fbda933538b3007e755fef6f101">

compiler/GHC/Core/Opt/SpecConstr.hs

</a>

</li>

<li class="file-stats">

<a href="#4aad0050db1a8a20db8bbca149111de99cb299c9">

compiler/GHC/Core/TyCon.hs

</a>

</li>

<li class="file-stats">

<a href="#1a7aba0daeafab195716dd25432479804a55ab60">

compiler/GHC/Core/Utils.hs

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<li class="file-stats">

<a href="#6983b6dc1a4f225d4e72180ad45d8484d9d32931">

compiler/GHC/HsToCore/Pmc/Solver/Types.hs

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<li class="file-stats">

<a href="#94864be2e2eb1959a038d5d903a6c784e5cfb32a">

compiler/GHC/HsToCore/Utils.hs

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<li class="file-stats">

<a href="#446cb12ca6cefaf1c6eb79b7db643632744263c7">

compiler/GHC/Parser/PostProcess.hs

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<li class="file-stats">

<a href="#efe7444c09eed0fdaa83e6904e6328fb435620bf">

compiler/GHC/Runtime/Interpreter.hs

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<li class="file-stats">

<a href="#902811828741e6bcd64702935bbb54edbbd070ef">

compiler/GHC/Tc/Gen/Expr.hs

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<li class="file-stats">

<a href="#9ea832ccdb4b5f7508a1efd6caedeafa16b269e7">

compiler/GHC/Tc/Gen/Splice.hs

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<li class="file-stats">

<a href="#f639b0b31b7245cb7d34ac190b798f5ec1c7da2e">

compiler/GHC/Tc/Solver/Interact.hs

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<li class="file-stats">

<a href="#83d23a46bb6cdc8b1edc16f1fd2c8f5c53e2c9ca">

compiler/GHC/Tc/TyCl.hs

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<li class="file-stats">

<a href="#166e3514d27c63ef7e86af29830d9e8b2a31c8b1">

compiler/GHC/Types/Basic.hs

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<li class="file-stats">

<a href="#03e77c5a7f093768fb8c3be51f8c4ece06b78463">

compiler/GHC/Types/Name/Reader.hs

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<li class="file-stats">

<a href="#d3cf57b6a5ebc234dc7689db38ef9b6cf2259c0f">

compiler/GHC/Utils/Outputable.hs

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<li class="file-stats">

<a href="#280477126026a1efea60a15fab55e9b9cdec8f6e">

docs/users_guide/exts/partial_type_signatures.rst

</a>

</li>

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<h4>Changes:</h4>

<li id="bd153f89bc48f3fd5079b51fb799808aacbd750c">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#bd153f89bc48f3fd5079b51fb799808aacbd750c"><strong>compiler/GHC/Core/Opt/Pipeline.hs</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="895" 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="895" 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">@@ -895,7 +895,7 @@ Old "solution":</td>

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<td class="diff-line-num old_line" data-linenumber="895" 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">

895

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<td class="diff-line-num new_line" data-linenumber="895" 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">

895

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC895" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        of iterateList in the first place</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="896" 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">

896

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<td class="diff-line-num new_line" data-linenumber="896" 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">

896

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<pre style="margin: 0;"> <span id="LC896" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="897" 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">

897

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<td class="diff-line-num new_line" data-linenumber="897" 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">

897

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<pre style="margin: 0;"> <span id="LC897" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">But in principle the user *might* want rules that only apply to the Id</span></span>

</pre>

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<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="898" 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">

898

</td>

<td class="diff-line-num new_line old" data-linenumber="898" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

</td>

<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC898" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"><span class="idiff left right">he says</span>.  And inline pragmas are similar</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="899" 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="898" 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">

898

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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC898" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"><span class="idiff left right">they say</span>.  And inline pragmas are similar</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="899" 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">

899

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<td class="diff-line-num new_line" data-linenumber="899" 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">

899

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC899" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   {-# NOINLINE f #-}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="900" 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">

900

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<td class="diff-line-num new_line" data-linenumber="900" 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">

900

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<pre style="margin: 0;"> <span id="LC900" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   f = local</span></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="901" 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">

901

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<td class="diff-line-num new_line" data-linenumber="901" 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">

901

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC901" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   local = <stuff></span></span>

</pre>

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<br>

</li>

<li id="b6a5ba32bafb8fbda933538b3007e755fef6f101">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#b6a5ba32bafb8fbda933538b3007e755fef6f101"><strong>compiler/GHC/Core/Opt/SpecConstr.hs</strong></a>

<hr>

<table class="code white" style="font-family: monospace; font-size: 90%;" bgcolor="#fff" width="100%" cellpadding="0" cellspacing="0">

<tr class="line_holder match" id="" style="line-height: 1.6;">

<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1744" 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="1744" 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">@@ -1744,8 +1744,8 @@ Note [spec_usg includes rhs_usg]</td>

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<td class="diff-line-num old_line" data-linenumber="1744" 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">

1744

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<td class="diff-line-num new_line" data-linenumber="1744" 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="LC1744" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">In calls to 'specialise', the returned ScUsage must include the rhs_usg in</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1745" 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="1745" 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">

1745

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<pre style="margin: 0;"> <span id="LC1745" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">the passed-in SpecInfo, unless there are no calls at all to the function.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1746" 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">

1746

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<td class="diff-line-num new_line" data-linenumber="1746" 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">

1746

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<pre style="margin: 0;"> <span id="LC1746" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1747" 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">

1747

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<td class="diff-line-num new_line old" data-linenumber="1747" 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="LC1747" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">The caller can, indeed must, assume this.  <span class="idiff left right">He</span> should not combine in rhs_usg</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1748" 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">

1748

</td>

<td class="diff-line-num new_line old" data-linenumber="1747" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1748" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"><span class="idiff left right">himself, or he</span>'ll get rhs_usg twice -- and that can lead to an exponential</span></span>

</pre>

</td>

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<pre style="margin: 0;">+<span id="LC1747" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">The caller can, indeed must, assume this.  <span class="idiff left right">They</span> should not combine in rhs_usg</span></span>

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<pre style="margin: 0;">+<span id="LC1748" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"><span class="idiff left right">themselves, or they</span>'ll get rhs_usg twice -- and that can lead to an exponential</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1749" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">blowup of duplicates in the CallEnv.  This is what gave rise to the massive</span></span>

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<pre style="margin: 0;"> <span id="LC1750" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">performance loss in #8852.</span></span>

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1751

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<pre style="margin: 0;"> <span id="LC1751" class="line" lang="haskell"></span>

</pre>

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</li>

<li id="4aad0050db1a8a20db8bbca149111de99cb299c9">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#4aad0050db1a8a20db8bbca149111de99cb299c9"><strong>compiler/GHC/Core/TyCon.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="224" 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="224" 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">@@ -224,8 +224,8 @@ See also Note [Wrappers for data instance tycons] in GHC.Types.Id.Make</td>

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<pre style="margin: 0;"> <span id="LC224" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC225" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* Reply "yes" to isDataFamilyTyCon, and isFamilyTyCon</span></span>

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<pre style="margin: 0;"> <span id="LC226" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC227" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* The user does not see any "equivalent types" as <span class="idiff left right">he</span> did with type</span></span>

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<pre style="margin: 0;">-<span id="LC228" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  synonym families.  <span class="idiff left right">He just sees</span> constructors with types</span></span>

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<pre style="margin: 0;">+<span id="LC227" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* The user does not see any "equivalent types" as <span class="idiff left right">they</span> did with type</span></span>

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<pre style="margin: 0;">+<span id="LC228" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  synonym families.  <span class="idiff left right">They just see</span> constructors with types</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC229" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        T1 :: T Int</span></span>

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<pre style="margin: 0;"> <span id="LC230" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        T2 :: Bool -> T Int</span></span>

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<pre style="margin: 0;"> <span id="LC231" class="line" lang="haskell"></span>

</pre>

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<li id="1a7aba0daeafab195716dd25432479804a55ab60">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#1a7aba0daeafab195716dd25432479804a55ab60"><strong>compiler/GHC/Core/Utils.hs</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1511" 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">@@ -1511,7 +1511,7 @@ Note [Expandable overloadings]</td>

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<pre style="margin: 0;"> <span id="LC1511" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Suppose the user wrote this</span></span>

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<pre style="margin: 0;"> <span id="LC1512" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   {-# RULE  forall x. foo (negate x) = h x #-}</span></span>

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<pre style="margin: 0;"> <span id="LC1513" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   f x = ....(foo (negate x))....</span></span>

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<pre style="margin: 0;">-<span id="LC1514" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"><span class="idiff left right">He</span>'d expect the rule to fire. But since negate is overloaded, we might</span></span>

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<pre style="margin: 0;">+<span id="LC1514" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"><span class="idiff left right">They</span>'d expect the rule to fire. But since negate is overloaded, we might</span></span>

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<pre style="margin: 0;"> <span id="LC1515" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">get this:</span></span>

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<pre style="margin: 0;"> <span id="LC1516" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    f = \d -> let n = negate d in \x -> ...foo (n x)...</span></span>

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<pre style="margin: 0;"> <span id="LC1517" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">So we treat the application of a function (negate in this case) to a</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">@@ -2621,4 +2621,3 @@ isUnsafeEqualityProof e</td>

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<pre style="margin: 0;"> <span id="LC2621" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">idName</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">unsafeEqualityProofName</span></span>

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<pre style="margin: 0;"> <span id="LC2622" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>

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<pre style="margin: 0;"> <span id="LC2623" class="line" lang="haskell">  <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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<pre style="margin: 0;">-<span id="LC2624" class="line" lang="haskell"></span></pre>

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<br>

</li>

<li id="6983b6dc1a4f225d4e72180ad45d8484d9d32931">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#6983b6dc1a4f225d4e72180ad45d8484d9d32931"><strong>compiler/GHC/HsToCore/Pmc/Solver/Types.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">@@ -90,7 +90,7 @@ initNabla = MkNabla initTyState initTmState</td>

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<pre style="margin: 0;"> <span id="LC90" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span> <span class="kt" style="color: #458; font-weight: 600;">Nabla</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;"> <span id="LC91" class="line" lang="haskell">  <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">nabla</span> <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;">text</span> <span class="s" style="color: #d14;">"Nabla"</span><span class="p">)</span> <span class="mi" style="color: #099;">2</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span></span>

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<pre style="margin: 0;"> <span id="LC92" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- intentionally formatted this way enable the dev to comment in only</span></span>

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<pre style="margin: 0;">-<span id="LC93" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- the info <span class="idiff left right">she needs</span></span></span>

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<pre style="margin: 0;">+<span id="LC93" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- the info <span class="idiff left right">they need</span></span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC94" class="line" lang="haskell">      <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_tm_st</span> <span class="n" style="color: #333;">nabla</span><span class="p">),</span></span>

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<pre style="margin: 0;"> <span id="LC95" class="line" lang="haskell">      <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">nabla_ty_st</span> <span class="n" style="color: #333;">nabla</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC96" class="line" lang="haskell">    <span class="p">]</span></span>

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<li id="94864be2e2eb1959a038d5d903a6c784e5cfb32a">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#94864be2e2eb1959a038d5d903a6c784e5cfb32a"><strong>compiler/GHC/HsToCore/Utils.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">@@ -454,7 +454,7 @@ There are a few subtleties in the desugaring of `seq`:</td>

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454

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<pre style="margin: 0;"> <span id="LC454" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">          I# _ -> ...case b of {True -> fst x; False -> 0}...</span></span>

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<pre style="margin: 0;"> <span id="LC455" class="line" lang="haskell"></span>

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456

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<pre style="margin: 0;"> <span id="LC456" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    We can try to avoid doing this by ensuring that the binder-swap in the</span></span>

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<pre style="margin: 0;">-<span id="LC457" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    case happens, so we get his at an early stage:</span></span>

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<pre style="margin: 0;">+<span id="LC457" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    case happens, so we get <span class="idiff left right">t</span>his at an early stage:</span></span>

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458

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<pre style="margin: 0;"> <span id="LC458" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">       case chp of chp2 { I# -> ...chp2... }</span></span>

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459

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<pre style="margin: 0;"> <span id="LC459" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    But this is fragile.  The real culprit is the source program.  Perhaps we</span></span>

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460

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<pre style="margin: 0;"> <span id="LC460" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    should have said explicitly</span></span>

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<li id="446cb12ca6cefaf1c6eb79b7db643632744263c7">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#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="338" 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">@@ -338,8 +338,8 @@ mkSpliceDecl :: LHsExpr GhcPs -> HsDecl GhcPs</td>

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<pre style="margin: 0;"> <span id="LC338" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If the user wrote</span></span>

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<pre style="margin: 0;"> <span id="LC339" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      [pads| ... ]   then return a QuasiQuoteD</span></span>

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<pre style="margin: 0;"> <span id="LC340" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      $(e)           then return a SpliceD</span></span>

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<pre style="margin: 0;">-<span id="LC341" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- but if <span class="idiff left right">she</span> wrote, say,</span></span>

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<pre style="margin: 0;">-<span id="LC342" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      f x            then behave as if <span class="idiff left right">she</span>'d written $(f x)</span></span>

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<pre style="margin: 0;">+<span id="LC341" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- but if <span class="idiff left right">they</span> wrote, say,</span></span>

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<pre style="margin: 0;">+<span id="LC342" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--      f x            then behave as if <span class="idiff left right">they</span>'d written $(f x)</span></span>

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<pre style="margin: 0;"> <span id="LC343" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--                     ie a SpliceD</span></span>

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<pre style="margin: 0;"> <span id="LC344" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>

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<td class="diff-line-num 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">

345

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<pre style="margin: 0;"> <span id="LC345" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Typed splices are not allowed at the top level, thus we do not represent them</span></span>

</pre>

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<br>

</li>

<li id="efe7444c09eed0fdaa83e6904e6328fb435620bf">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#efe7444c09eed0fdaa83e6904e6328fb435620bf"><strong>compiler/GHC/Runtime/Interpreter.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="411" 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="411" 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">@@ -411,7 +411,7 @@ handleSeqHValueStatus :: HscEnv -> EvalStatus () -> IO (EvalResult ())</td>

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411

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<pre style="margin: 0;"> <span id="LC411" class="line" lang="haskell"><span class="n" style="color: #333;">handleSeqHValueStatus</span> <span class="n" style="color: #333;">hsc_env</span> <span class="n" style="color: #333;">eval_status</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>

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412

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412

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<pre style="margin: 0;"> <span id="LC412" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">eval_status</span> <span class="kr" style="font-weight: 600;">of</span></span>

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413

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<pre style="margin: 0;"> <span id="LC413" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EvalBreak</span> <span class="n" style="color: #333;">is_exception</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">ix</span> <span class="n" style="color: #333;">mod_uniq</span> <span class="n" style="color: #333;">resume_ctxt</span> <span class="kr" style="font-weight: 600;">_</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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414

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<pre style="margin: 0;">-<span id="LC414" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- A breakpoint was hit<span class="idiff left right">, inform the user and tell hi</span>m</span></span>

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<td class="diff-line-num new new_line" data-linenumber="414" 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="LC414" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- A breakpoint was hit<span class="idiff left right">; inform the user and tell the</span>m</span></span>

</pre>

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415

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415

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<pre style="margin: 0;"> <span id="LC415" class="line" lang="haskell">      <span class="c1" style="color: #998; font-style: italic;">-- which breakpoint was hit.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="416" 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">

416

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416

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<pre style="margin: 0;"> <span id="LC416" class="line" lang="haskell">      <span class="n" style="color: #333;">resume_ctxt_fhv</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">liftIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkFinalizedHValue</span> <span class="n" style="color: #333;">hsc_env</span> <span class="n" style="color: #333;">resume_ctxt</span></span>

</pre>

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417

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<td class="diff-line-num new_line" data-linenumber="417" 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="LC417" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">hmi</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">expectJust</span> <span class="s" style="color: #d14;">"handleRunStatus"</span> <span class="o" style="font-weight: 600;">$</span></span>

</pre>

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</li>

<li id="902811828741e6bcd64702935bbb54edbbd070ef">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#902811828741e6bcd64702935bbb54edbbd070ef"><strong>compiler/GHC/Tc/Gen/Expr.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="103" 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="103" 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">@@ -103,7 +103,7 @@ tcCheckPolyExpr, tcCheckPolyExprNC</td>

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<pre style="margin: 0;"> <span id="LC103" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- tcCheckPolyExpr is a convenient place (frequent but not too frequent)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="104" 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="LC104" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- place to add context information.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="105" 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">

105

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<td class="diff-line-num new_line" data-linenumber="105" 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">

105

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<pre style="margin: 0;"> <span id="LC105" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The NC version does not do so, usually because the caller wants</span></span>

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<td class="diff-line-num old old_line" data-linenumber="106" 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">

106

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<td class="diff-line-num new_line old" data-linenumber="106" 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="LC106" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- to do so <span class="idiff left right">himself</span>.</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="107" 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="106" 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="LC106" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- to do so <span class="idiff left right">themselves</span>.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="107" 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="107" 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">

107

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<pre style="margin: 0;"> <span id="LC107" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="108" 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">

108

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<pre style="margin: 0;"> <span id="LC108" class="line" lang="haskell"><span class="n" style="color: #333;">tcCheckPolyExpr</span>   <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">res_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tcPolyExpr</span>   <span class="n" style="color: #333;">expr</span> <span class="p">(</span><span class="n" style="color: #333;">mkCheckExpType</span> <span class="n" style="color: #333;">res_ty</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC109" class="line" lang="haskell"><span class="n" style="color: #333;">tcCheckPolyExprNC</span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">res_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tcPolyExprNC</span> <span class="n" style="color: #333;">expr</span> <span class="p">(</span><span class="n" style="color: #333;">mkCheckExpType</span> <span class="n" style="color: #333;">res_ty</span><span class="p">)</span></span>

</pre>

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</li>

<li id="9ea832ccdb4b5f7508a1efd6caedeafa16b269e7">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#9ea832ccdb4b5f7508a1efd6caedeafa16b269e7"><strong>compiler/GHC/Tc/Gen/Splice.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="565" 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="565" 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">@@ -565,7 +565,7 @@ We only produce warnings for TH splices when the user requests so</td>

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<pre style="margin: 0;"> <span id="LC565" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">(-fenable-th-splice-warnings). There are multiple reasons:</span></span>

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566

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<pre style="margin: 0;"> <span id="LC566" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC567" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  * It's not clear that the user that compiles a splice is the author of the code</span></span>

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<pre style="margin: 0;">-<span id="LC568" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    that produces the warning. Think of the situation where <span class="idiff left right">she just splices</span> in</span></span>

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<pre style="margin: 0;">+<span id="LC568" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    that produces the warning. Think of the situation where <span class="idiff left right">they just splice</span> in</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC569" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    code from a third-party library that produces incomplete pattern matches.</span></span>

</pre>

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570

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<pre style="margin: 0;"> <span id="LC570" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">    In this scenario, the user isn't even able to fix that warning.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="571" 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="LC571" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  * Gathering information for producing the warnings (pattern-match check</span></span>

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<li id="f639b0b31b7245cb7d34ac190b798f5ec1c7da2e">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#f639b0b31b7245cb7d34ac190b798f5ec1c7da2e"><strong>compiler/GHC/Tc/Solver/Interact.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="88" 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="88" 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">@@ -88,7 +88,7 @@ Note [Basic Simplifier Plan]</td>

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<pre style="margin: 0;"> <span id="LC88" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      - If (ContinueWith ct) is returned by a stage, we feed 'ct' on to</span></span>

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<pre style="margin: 0;"> <span id="LC89" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">        the next stage in the pipeline.</span></span>

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<pre style="margin: 0;"> <span id="LC90" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">4. If the element has survived (i.e. ContinueWith x) the last stage</span></span>

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<pre style="margin: 0;">-<span id="LC91" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   then we add <span class="idiff left right">him</span> in the inerts and jump back to Step 1.</span></span>

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<td class="diff-line-num new old_line" data-linenumber="92" 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="91" 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="LC91" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   then we add <span class="idiff left right">it</span> in the inerts and jump back to Step 1.</span></span>

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<pre style="margin: 0;"> <span id="LC92" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC93" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">If in Step 1 no such element exists, we have exceeded our context-stack</span></span>

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94

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<pre style="margin: 0;"> <span id="LC94" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">depth and will simply fail.</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1671" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1671" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1671,7 +1671,7 @@ variable *on the left* of the equality. Here is what happens if not:</td>

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<pre style="margin: 0;"> <span id="LC1671" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  Original wanted:  (a ~ alpha),  (alpha ~ Int)</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1672" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">We spontaneously solve the first wanted, without changing the order!</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1673" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">      given : a ~ alpha      [having unified alpha := a]</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC1674" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Now the second wanted comes along, but <span class="idiff left right">he</span> cannot rewrite the given, so we simply continue.</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC1674" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Now the second wanted comes along, but <span class="idiff left right">it</span> cannot rewrite the given, so we simply continue.</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1675" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">At the end we spontaneously solve that guy, *reunifying*  [alpha := Int]</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1676" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1677" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">We avoid this problem by orienting the resulting given so that the unification</span></span>

</pre>

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<li id="83d23a46bb6cdc8b1edc16f1fd2c8f5c53e2c9ca">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#83d23a46bb6cdc8b1edc16f1fd2c8f5c53e2c9ca"><strong>compiler/GHC/Tc/TyCl.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="953" 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="953" 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">@@ -953,7 +953,7 @@ The question for this Note is this:</td>

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953

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<pre style="margin: 0;"> <span id="LC953" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Much of the debate is memorialized in #15743.</span></span>

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<pre style="margin: 0;"> <span id="LC954" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC955" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Here is our design choice. When inferring the ordering of variables</span></span>

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<pre style="margin: 0;">-<span id="LC956" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">for a TyCl declaration (that is, for those variables that he user</span></span>

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<pre style="margin: 0;">+<span id="LC956" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">for a TyCl declaration (that is, for those variables that <span class="idiff left right">t</span>he user</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC957" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">has not specified the order with an explicit `forall`), we use the</span></span>

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<pre style="margin: 0;"> <span id="LC958" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">following order:</span></span>

</pre>

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959

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<pre style="margin: 0;"> <span id="LC959" class="line" lang="haskell"></span>

</pre>

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</li>

<li id="166e3514d27c63ef7e86af29830d9e8b2a31c8b1">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#166e3514d27c63ef7e86af29830d9e8b2a31c8b1"><strong>compiler/GHC/Types/Basic.hs</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1352" 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">@@ -1352,7 +1352,7 @@ If you want to know where InlinePragmas take effect: Look in GHC.HsToCore.Binds.</td>

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<pre style="margin: 0;"> <span id="LC1352" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1353" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note [inl_inline and inl_act]</span></span>

</pre>

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1354

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<pre style="margin: 0;"> <span id="LC1354" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1355" 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">

1355

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<pre style="margin: 0;">-<span id="LC1355" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* inl_inline says what the user wrote: did <span class="idiff left right">she</span> say INLINE, NOINLINE,</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC1355" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* inl_inline says what the user wrote: did <span class="idiff left right">they</span> say INLINE, NOINLINE,</span></span>

</pre>

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1356

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<pre style="margin: 0;"> <span id="LC1356" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">  INLINABLE, or nothing at all</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1357" 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">

1357

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1357

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<pre style="margin: 0;"> <span id="LC1357" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1358" 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">

1358

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<pre style="margin: 0;"> <span id="LC1358" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* inl_act says in what phases the unfolding is active or inactive</span></span>

</pre>

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<br>

</li>

<li id="03e77c5a7f093768fb8c3be51f8c4ece06b78463">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#03e77c5a7f093768fb8c3be51f8c4ece06b78463"><strong>compiler/GHC/Types/Name/Reader.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1345" 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="1345" 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">@@ -1345,7 +1345,7 @@ pprLoc (UnhelpfulSpan {}) = empty</td>

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<pre style="margin: 0;"> <span id="LC1345" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   (b) it is always in scope</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1346" 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="LC1346" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--   (c) it is a synonym for Data.Kind.Type</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC1347" 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="LC1348" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- However, the user might not know that <span class="idiff left right">he's</span> working on a module with</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC1348" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- However, the user might not know that <span class="idiff left right">they are</span> working on a module with</span></span>

</pre>

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1349

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<td class="diff-line-num new_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">

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<pre style="margin: 0;"> <span id="LC1349" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- NoStarIsType and write code that still assumes (a), (b), and (c), which</span></span>

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<pre style="margin: 0;"> <span id="LC1350" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- actually do not hold in that module.</span></span>

</pre>

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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">

1351

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<pre style="margin: 0;"> <span id="LC1351" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>

</pre>

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<br>

</li>

<li id="d3cf57b6a5ebc234dc7689db38ef9b6cf2259c0f">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#d3cf57b6a5ebc234dc7689db38ef9b6cf2259c0f"><strong>compiler/GHC/Utils/Outputable.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1287" 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="1287" 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">@@ -1287,8 +1287,8 @@ speakNth n = hcat [ int n, text suffix ]</td>

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1287

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1287

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<pre style="margin: 0;"> <span id="LC1287" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > speakN 5 = text "five"</span></span>

</pre>

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1288

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1288

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<pre style="margin: 0;"> <span id="LC1288" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > speakN 10 = text "10"</span></span>

</pre>

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1289

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1289

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<pre style="margin: 0;"> <span id="LC1289" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span></span>

</pre>

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1290

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<td class="diff-line-num new_line old" data-linenumber="1290" 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="LC1290" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"none"</span>  <span class="c1" style="color: #998; font-style: italic;">-- E.g.  "<span class="idiff left right">he has</span> none"</span></span>

</pre>

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1291

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<pre style="margin: 0;">-<span id="LC1291" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"one"</span>   <span class="c1" style="color: #998; font-style: italic;">-- E.g.  "<span class="idiff left right">he has</span> one"</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1292" 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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1290

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<pre style="margin: 0;">+<span id="LC1290" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"none"</span>  <span class="c1" style="color: #998; font-style: italic;">-- E.g.  "<span class="idiff left right">they have</span> none"</span></span>

</pre>

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1291

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<pre style="margin: 0;">+<span id="LC1291" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"one"</span>   <span class="c1" style="color: #998; font-style: italic;">-- E.g.  "<span class="idiff left right">they have</span> one"</span></span>

</pre>

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1292

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1292

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<pre style="margin: 0;"> <span id="LC1292" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"two"</span></span>

</pre>

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1293

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<td class="diff-line-num new_line" data-linenumber="1293" 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">

1293

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<pre style="margin: 0;"> <span id="LC1293" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">3</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"three"</span></span>

</pre>

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1294

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1294

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<pre style="margin: 0;"> <span id="LC1294" class="line" lang="haskell"><span class="n" style="color: #333;">speakN</span> <span class="mi" style="color: #099;">4</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"four"</span></span>

</pre>

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<br>

</li>

<li id="280477126026a1efea60a15fab55e9b9cdec8f6e">

<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8be3eb3440a152246a1aef7b4020be4c03cf2e#280477126026a1efea60a15fab55e9b9cdec8f6e"><strong>docs/users_guide/exts/partial_type_signatures.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="224" 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="224" 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">@@ -224,7 +224,7 @@ extra-constraints wildcard is used to infer three extra constraints.</td>

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<pre style="margin: 0;"> <span id="LC224" class="line" lang="plaintext">          arbitCs :: _ => a -> String</span>

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<pre style="margin: 0;"> <span id="LC225" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC226" class="line" lang="plaintext">An extra-constraints wildcard shouldn't prevent the programmer from</span>

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<pre style="margin: 0;">-<span id="LC227" class="line" lang="plaintext">already listing the constraints <span class="idiff left right">he knows or wants</span> to annotate, e.g.</span>

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<pre style="margin: 0;">+<span id="LC227" class="line" lang="plaintext">already listing the constraints <span class="idiff left right">they know or want</span> to annotate, e.g.</span>

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<pre style="margin: 0;"> <span id="LC228" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC229" class="line" lang="plaintext">::</span>

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<pre style="margin: 0;"> <span id="LC230" class="line" lang="plaintext"></span>

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