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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:

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<ul>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0dcbfe646e52d0a1ef6d6e59a059323485775eb">d0dcbfe6</a></strong>

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<span>by Jan Hrček</span>

<i>at 2020-06-16T20:36:38+02:00</i>

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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix typos and formatting in user guide

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56a9e95fd6c2f213d676c9a2bd0a6cf93c531dbb">56a9e95f</a></strong>

<div>

<span>by Jan Hrček</span>

<i>at 2020-06-16T20:36:38+02:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Resolve TODO

</pre>

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<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e884d14102948ad49d75611da247beff25911a4">3e884d14</a></strong>

<div>

<span>by Jan Hrček</span>

<i>at 2020-06-16T20:36:38+02:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Rename TcHoleErrors to GHC.Tc.Errors.Hole

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<h4>15 changed files:</h4>

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<a href="#b421960e854c6cfa1e4ca830bd6a5fc6eef91168">

docs/users_guide/8.12.1-notes.rst

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<a href="#616606d7ec92f17c847240a7bc125e1d8c9c00a1">

docs/users_guide/extending_ghc.rst

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docs/users_guide/exts/constrained_class_methods.rst

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docs/users_guide/exts/instances.rst

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docs/users_guide/exts/nullary_type_classes.rst

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<a href="#371a6fbdfe576b6a90fb252b0ef1a97c7488f006">

docs/users_guide/exts/primitives.rst

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docs/users_guide/exts/rank_polymorphism.rst

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docs/users_guide/exts/type_families.rst

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docs/users_guide/profiling.rst

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<a href="#eda53fd56da292564e3d1dde312eafab2a8d7a4f">

docs/users_guide/win32-dlls.rst

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<a href="#8b79f294cbb56e8b9cb6a9be7b94dc71c1b975a9">

libraries/base/GHC/OverloadedLabels.hs

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<h4>Changes:</h4>

<li id="b421960e854c6cfa1e4ca830bd6a5fc6eef91168">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#b421960e854c6cfa1e4ca830bd6a5fc6eef91168"><strong>docs/users_guide/8.12.1-notes.rst</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="40" style="width: 35px; color: rgba(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="40" style="width: 35px; color: rgba(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">@@ -40,7 +40,7 @@ Language</td>

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<td class="diff-line-num old_line" data-linenumber="40" style="width: 35px; color: rgba(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="40" style="width: 35px; color: rgba(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="LC40" class="line" lang="plaintext"></span>

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<td class="diff-line-num old_line" data-linenumber="41" style="width: 35px; color: rgba(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="41" style="width: 35px; color: rgba(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="LC41" class="line" lang="plaintext">* Record field selectors are now given type signatures that preserve the</span>

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<td class="diff-line-num old_line" data-linenumber="42" style="width: 35px; color: rgba(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="42" style="width: 35px; color: rgba(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="LC42" class="line" lang="plaintext">  user-written order of quantified type variables. Moreover, field selector</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="43" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">

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<td class="diff-line-num new_line old" data-linenumber="43" 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="LC43" class="line" lang="plaintext">  type signatures no longer make inferred type variables avaiable for explicit</span>

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<td class="diff-line-num new old_line" data-linenumber="44" 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="43" 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="LC43" class="line" lang="plaintext">  type signatures no longer make inferred type variables avai<span class="idiff left right">l</span>able for explicit</span>

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<td class="diff-line-num old_line" data-linenumber="44" style="width: 35px; color: rgba(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="44" style="width: 35px; color: rgba(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="LC44" class="line" lang="plaintext">  type application. See :ref:`field-selectors-and-type-applications` for more</span>

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<td class="diff-line-num old_line" data-linenumber="45" style="width: 35px; color: rgba(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="LC45" class="line" lang="plaintext">  details.</span>

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<td class="diff-line-num old_line" data-linenumber="46" style="width: 35px; color: rgba(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="46" style="width: 35px; color: rgba(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="LC46" class="line" lang="plaintext"></span>

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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 @@ Language</td>

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<td class="diff-line-num 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">

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<td class="diff-line-num 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">

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<pre style="margin: 0;"> <span id="LC103" class="line" lang="plaintext">  <https://gitlab.haskell.org/ghc/ghc/issues/18126>`_.</span>

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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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<td class="diff-line-num new_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="plaintext"></span>

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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">

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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">

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<pre style="margin: 0;"> <span id="LC105" class="line" lang="plaintext">* GHC now implements simplified subsumption, as described in `GHC Proposal #287 <https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0287-simplify-subsumption.rst>`__.</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">

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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="plaintext">  This change simplifies the type system, and prevents the possiblity of GHC</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="plaintext">  This change simplifies the type system, and prevents the possib<span class="idiff left right">i</span>lity of GHC</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">

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<pre style="margin: 0;"> <span id="LC107" class="line" lang="plaintext">  silently changing the semantics of user programs, but it does mean that some libraries</span>

</pre>

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108

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<td class="diff-line-num new_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="plaintext">  may need eta-expansion to typecheck.  More info here: :ref:`simple-subsumption`.</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="109" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

109

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<td class="diff-line-num new_line" data-linenumber="109" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

109

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<pre style="margin: 0;"> <span id="LC109" class="line" lang="plaintext"></span>

</pre>

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<br>

</li>

<li id="616606d7ec92f17c847240a7bc125e1d8c9c00a1">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#616606d7ec92f17c847240a7bc125e1d8c9c00a1"><strong>docs/users_guide/extending_ghc.rst</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="936" style="width: 35px; color: rgba(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="936" style="width: 35px; color: rgba(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">@@ -936,8 +936,8 @@ at error generation.</td>

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936

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<td class="diff-line-num new_line" data-linenumber="936" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

936

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<pre style="margin: 0;"> <span id="LC936" class="line" lang="mosel">    <span class="n" style="color: #333;">hfPlugin</span> <span class="p">::</span> <span class="p">[</span><span class="n" style="color: #333;">CommandLineOption</span><span class="p">]</span> <span class="p">-></span> <span class="n" style="color: #333;">Maybe</span> <span class="n" style="color: #333;">HoleFitPlugin</span></span>

</pre>

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937

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937

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<pre style="margin: 0;"> <span id="LC937" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="938" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

938

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938

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

<pre style="margin: 0;"> <span id="LC938" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="939" 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">

939

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<td class="diff-line-num new_line old" data-linenumber="939" 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="LC939" class="line" lang="mosel"><span class="n" style="color: #333;">Where</span> <span class="p">``</span><span class="n" style="color: #333;">fromPureHFPlugin</span> <span class="p">::</span> <span class="n" style="color: #333;">HoleFitPlugin</span> <span class="p">-></span> <span class="n" style="color: #333;">HoleFitPluginR</span><span class="p">``</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">conven<span class="idiff left right">c</span>ience</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="940" 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">

940

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<td class="diff-line-num new_line old" data-linenumber="939" 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="LC940" class="line" lang="mosel"><span class="k" style="font-weight: 600;">function</span> <span class="n" style="color: #333;">provided</span> <span class="k" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">the</span> <span class="p">``</span><span class="n" style="color: #333;"><span class="idiff left right">TcHoleErrors</span></span><span class="p">``</span> <span class="n" style="color: #333;">module</span><span class="p">,</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">defining</span> <span class="n" style="color: #333;">plugins</span> <span class="n" style="color: #333;">that</span> <span class="k" style="font-weight: 600;">do</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="941" 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="939" 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">

939

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<pre style="margin: 0;">+<span id="LC939" class="line" lang="mosel"><span class="n" style="color: #333;">Where</span> <span class="p">``</span><span class="n" style="color: #333;">fromPureHFPlugin</span> <span class="p">::</span> <span class="n" style="color: #333;">HoleFitPlugin</span> <span class="p">-></span> <span class="n" style="color: #333;">HoleFitPluginR</span><span class="p">``</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">convenience</span></span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="941" 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="940" 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">

940

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<pre style="margin: 0;">+<span id="LC940" class="line" lang="mosel"><span class="k" style="font-weight: 600;">function</span> <span class="n" style="color: #333;">provided</span> <span class="k" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">the</span> <span class="p">``</span><span class="n" style="color: #333;"><span class="idiff left">GHC</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">Tc</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">Errors</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff right">Hole</span></span><span class="p">``</span> <span class="n" style="color: #333;">module</span><span class="p">,</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">defining</span> <span class="n" style="color: #333;">plugins</span> <span class="n" style="color: #333;">that</span> <span class="k" style="font-weight: 600;">do</span></span>

</pre>

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941

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<td class="diff-line-num new_line" data-linenumber="941" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

941

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<pre style="margin: 0;"> <span id="LC941" class="line" lang="mosel"><span class="k" style="font-weight: 600;">not</span> <span class="n" style="color: #333;">require</span> <span class="n" style="color: #333;">internal</span> <span class="n" style="color: #333;">state</span><span class="p">.</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="942" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

942

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<td class="diff-line-num new_line" data-linenumber="942" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

942

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

<pre style="margin: 0;"> <span id="LC942" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="943" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

943

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<td class="diff-line-num new_line" data-linenumber="943" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

943

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<pre style="margin: 0;"> <span id="LC943" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -986,7 +986,7 @@ spent on searching for valid hole fits, after which new searches are aborted.</td>

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986

</td>

<td class="diff-line-num new_line" data-linenumber="986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

986

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

<pre style="margin: 0;"> <span id="LC986" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="987" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

987

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<td class="diff-line-num new_line" data-linenumber="987" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

987

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<pre style="margin: 0;"> <span id="LC987" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">GHC</span><span class="p">.</span><span class="n" style="color: #333;">Plugins</span> <span class="n" style="color: #333;">hiding</span> <span class="p">((<>))</span></span>

</pre>

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988

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<td class="diff-line-num new_line" data-linenumber="988" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

988

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

<pre style="margin: 0;"> <span id="LC988" class="line" lang="mosel"></span>

</pre>

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989

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<td class="diff-line-num new_line old" data-linenumber="989" 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="LC989" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;"><span class="idiff left right">TcHoleErrors</span></span></span>

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<pre style="margin: 0;">+<span id="LC989" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;"><span class="idiff left">GHC</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">Tc</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">Errors</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff right">Hole</span></span></span>

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<pre style="margin: 0;"> <span id="LC990" class="line" lang="mosel"></span>

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<pre style="margin: 0;"> <span id="LC991" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">Data</span><span class="p">.</span><span class="k" style="font-weight: 600;">List</span> <span class="p">(</span><span class="n" style="color: #333;">stripPrefix</span><span class="p">,</span> <span class="n" style="color: #333;">sortOn</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC992" class="line" lang="mosel"></span>

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<li id="365dbffe23a6b69ca85584d0895d39c23360b792">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#365dbffe23a6b69ca85584d0895d39c23360b792"><strong>docs/users_guide/exts/constrained_class_methods.rst</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">@@ -19,8 +19,7 @@ class type variable, thus: ::</td>

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<pre style="margin: 0;"> <span id="LC19" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC20" class="line" lang="plaintext">The type of ``elem`` is illegal in Haskell 98, because it contains the</span>

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<pre style="margin: 0;"> <span id="LC21" class="line" lang="plaintext">constraint ``Eq a``, which constrains only the class type variable (in</span>

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<pre style="margin: 0;">-<span id="LC22" class="line" lang="plaintext">this case ``a``).</span>

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<pre style="margin: 0;">-<span id="LC23" class="line" lang="plaintext">this case ``a``).  More precisely, a constraint in a class method signature is rejected if</span>

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<pre style="margin: 0;">+<span id="LC22" class="line" lang="plaintext">this case ``a``). More precisely, a constraint in a class method signature is rejected if</span>

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<pre style="margin: 0;"> <span id="LC23" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC24" class="line" lang="plaintext">- The constraint mentions at least one type variable.  So this is allowed: ::</span>

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<pre style="margin: 0;"> <span id="LC25" class="line" lang="plaintext"></span>

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<li id="40c5c361272a89e26a4c177d35b70fb9af62f3a5">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#40c5c361272a89e26a4c177d35b70fb9af62f3a5"><strong>docs/users_guide/exts/flexible_contexts.rst</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">@@ -39,7 +39,7 @@ superclass of ``C``.)</td>

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<pre style="margin: 0;"> <span id="LC39" class="line" lang="plaintext">With the extension that adds a :ref:`kind of</span>

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<pre style="margin: 0;"> <span id="LC40" class="line" lang="plaintext">constraints <constraint-kind>`, you can write more exotic superclass</span>

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<pre style="margin: 0;"> <span id="LC41" class="line" lang="plaintext">definitions. The superclass cycle check is even more liberal in these</span>

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<pre style="margin: 0;">-<span id="LC42" class="line" lang="plaintext">case. For example, this is OK: ::</span>

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<pre style="margin: 0;">+<span id="LC42" class="line" lang="plaintext">case<span class="idiff left right">s</span>. For example, this is OK: ::</span>

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<pre style="margin: 0;"> <span id="LC43" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC44" class="line" lang="plaintext">      class A cls c where</span>

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<pre style="margin: 0;"> <span id="LC45" class="line" lang="plaintext">        meth :: cls c => c -> c</span>

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<li id="436ddddb43a95fb1618efe6f5f5fd4dd5235985f">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#436ddddb43a95fb1618efe6f5f5fd4dd5235985f"><strong>docs/users_guide/exts/hex_float_literals.rst</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">@@ -21,6 +21,7 @@ powers of 16, while the ones to the right correspond to negative ones.</td>

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<pre style="margin: 0;"> <span id="LC21" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC22" class="line" lang="plaintext">You may also write an explicit exponent, which is similar to the exponent</span>

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<pre style="margin: 0;"> <span id="LC23" class="line" lang="plaintext">in decimal notation with the following differences:</span>

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<pre style="margin: 0;">+<span id="LC24" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC25" class="line" lang="plaintext">- the exponent begins with ``p`` instead of ``e``</span>

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<pre style="margin: 0;"> <span id="LC26" class="line" lang="plaintext">- the exponent is written in base ``10`` (**not** 16)</span>

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<pre style="margin: 0;"> <span id="LC27" class="line" lang="plaintext">- the base of the exponent is ``2`` (**not** 16).</span>

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<li id="ed75822e0b6142f196a6abeb623c7669d31b4711">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#ed75822e0b6142f196a6abeb623c7669d31b4711"><strong>docs/users_guide/exts/instances.rst</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="6" style="width: 35px; color: rgba(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">@@ -6,7 +6,7 @@ Instance declarations and resolution</td>

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<pre style="margin: 0;"> <span id="LC6" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC7" class="line" lang="plaintext">An instance declaration has the form ::</span>

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<pre style="margin: 0;"> <span id="LC8" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC9" class="line" lang="plaintext">      instance (<span class="idiff left right"> </span>assertion1, ..., assertionn) => class type1 ... typem where ...</span>

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<pre style="margin: 0;">+<span id="LC9" class="line" lang="plaintext">      instance (assertion1, ..., assertionn) => class type1 ... typem where ...</span>

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<pre style="margin: 0;"> <span id="LC10" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC11" class="line" lang="plaintext">The part before the "``=>``" is the *context*, while the part after the</span>

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<pre style="margin: 0;"> <span id="LC12" class="line" lang="plaintext">"``=>``" is the *head* of the instance declaration.</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">@@ -74,7 +74,7 @@ GHC relaxes this rule in two ways:</td>

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<pre style="margin: 0;"> <span id="LC74" class="line" lang="plaintext">   writing the RHS of the type synonym definition. For example: ::</span>

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<pre style="margin: 0;"> <span id="LC75" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC76" class="line" lang="plaintext">         type Point a = (a,a)</span>

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<pre style="margin: 0;">-<span id="LC77" class="line" lang="plaintext">         instance C (Point a) <span class="idiff left right">  </span>where ...</span>

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<pre style="margin: 0;">+<span id="LC77" class="line" lang="plaintext">         instance C (Point a) where ...</span>

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<pre style="margin: 0;"> <span id="LC78" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC79" class="line" lang="plaintext">   is legal. The instance declaration is equivalent to ::</span>

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<pre style="margin: 0;"> <span id="LC80" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC382" class="line" lang="plaintext">   target constraint is a substitution instance of :math:`I`. These instance</span>

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<pre style="margin: 0;"> <span id="LC383" class="line" lang="plaintext">   declarations are the *candidates*.</span>

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<pre style="margin: 0;"> <span id="LC384" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC385" class="line" lang="plaintext">-  If no candidates remain, the search fail<span class="idiff left right">e</span>s</span>

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<pre style="margin: 0;">+<span id="LC385" class="line" lang="plaintext">-  If no candidates remain, the search fails</span>

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<pre style="margin: 0;"> <span id="LC386" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC387" class="line" lang="plaintext">-  Eliminate any candidate :math:`IX` for which there is another candidate</span>

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<pre style="margin: 0;"> <span id="LC388" class="line" lang="plaintext">   :math:`IY` such that both of the following hold:</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">@@ -450,7 +450,7 @@ former is a substitution instance of the latter. For example (D) is</td>

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<pre style="margin: 0;"> <span id="LC450" class="line" lang="plaintext">"more specific" than (C) because you can get from (C) to (D) by</span>

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<pre style="margin: 0;"> <span id="LC451" class="line" lang="plaintext">substituting ``a := Int``.</span>

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<pre style="margin: 0;"> <span id="LC452" class="line" lang="plaintext"></span>

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453

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<td class="diff-line-num new_line old" data-linenumber="453" 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="LC453" class="line" lang="plaintext">The final bullet (about unif<span class="idiff left right">i</span>ying instances)</span>

</pre>

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<pre style="margin: 0;">+<span id="LC453" class="line" lang="plaintext">The final bullet (about unifying instances)</span>

</pre>

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454

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<pre style="margin: 0;"> <span id="LC454" class="line" lang="plaintext">makes GHC conservative about committing to an</span>

</pre>

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455

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<pre style="margin: 0;"> <span id="LC455" class="line" lang="plaintext">overlapping instance. For example: ::</span>

</pre>

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456

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<td class="diff-line-num new_line" data-linenumber="456" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

456

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<pre style="margin: 0;"> <span id="LC456" class="line" lang="plaintext"></span>

</pre>

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<br>

</li>

<li id="aaa6462f2c4179c34b81b9d957859abf78ed2e19">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#aaa6462f2c4179c34b81b9d957859abf78ed2e19"><strong>docs/users_guide/exts/nullary_type_classes.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="9" style="width: 35px; color: rgba(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="9" style="width: 35px; color: rgba(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">@@ -9,7 +9,7 @@ Nullary type classes</td>

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<pre style="margin: 0;"> <span id="LC9" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC10" class="line" lang="plaintext">    :since: 7.8.1</span>

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11

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11

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<pre style="margin: 0;"> <span id="LC11" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">-<span id="LC12" class="line" lang="plaintext">    Allow<span class="idiff left right">s the use</span> definition of type classes with no parameters. This extension</span>

</pre>

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<pre style="margin: 0;">+<span id="LC12" class="line" lang="plaintext">    Allow<span class="idiff left right"> use and</span> definition of type classes with no parameters. This extension</span>

</pre>

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13

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<pre style="margin: 0;"> <span id="LC13" class="line" lang="plaintext">    has been replaced by :extension:`MultiParamTypeClasses`.</span>

</pre>

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<pre style="margin: 0;"> <span id="LC14" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC15" class="line" lang="plaintext"></span>

</pre>

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<li id="371a6fbdfe576b6a90fb252b0ef1a97c7488f006">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#371a6fbdfe576b6a90fb252b0ef1a97c7488f006"><strong>docs/users_guide/exts/primitives.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="70" style="width: 35px; color: rgba(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="70" style="width: 35px; color: rgba(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">@@ -70,7 +70,7 @@ Unboxed type kinds</td>

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<pre style="margin: 0;"> <span id="LC70" class="line" lang="plaintext">------------------</span>

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<pre style="margin: 0;"> <span id="LC71" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC72" class="line" lang="plaintext">Because unboxed types are represented without the use of pointers, we</span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="73" 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="LC73" class="line" lang="plaintext">cannot store them in <span class="idiff left right">use a polymorphic datatype at an unboxed </span>type.</span>

</pre>

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<pre style="margin: 0;">+<span id="LC73" class="line" lang="plaintext">cannot store them in <span class="idiff left right">a polymorphic data</span>type.</span>

</pre>

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<pre style="margin: 0;"> <span id="LC74" class="line" lang="plaintext">For example, the ``Just`` node</span>

</pre>

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<pre style="margin: 0;"> <span id="LC75" class="line" lang="plaintext">of ``Just 42#`` would have to be different from the ``Just`` node of</span>

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<pre style="margin: 0;"> <span id="LC76" class="line" lang="plaintext">``Just 42``; the former stores an integer directly, while the latter</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">@@ -90,7 +90,7 @@ point. In contrast, the kind ``Type`` is actually just a synonym for ``TYPE</td>

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<pre style="margin: 0;"> <span id="LC90" class="line" lang="plaintext">'LiftedRep``. More details of the ``TYPE`` mechanisms appear in the `section</span>

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<pre style="margin: 0;"> <span id="LC91" class="line" lang="plaintext">on runtime representation polymorphism <#runtime-rep>`__.</span>

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

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<pre style="margin: 0;">-<span id="LC93" class="line" lang="plaintext">Given that ``Int#``'s kind is not ``Type``, <span class="idiff left right">it </span>then it follows that ``Maybe</span>

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<pre style="margin: 0;">+<span id="LC93" class="line" lang="plaintext">Given that ``Int#``'s kind is not ``Type``, then it follows that ``Maybe</span>

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<pre style="margin: 0;"> <span id="LC94" class="line" lang="plaintext">Int#`` is disallowed. Similarly, because type variables tend to be of kind</span>

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<pre style="margin: 0;"> <span id="LC95" class="line" lang="plaintext">``Type`` (for example, in ``(.) :: (b -> c) -> (a -> b) -> a -> c``, all the</span>

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<pre style="margin: 0;"> <span id="LC96" class="line" lang="plaintext">type variables have kind ``Type``), polymorphism tends not to work over</span>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="315" style="width: 35px; color: rgba(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">@@ -315,7 +315,7 @@ of a `newtype`. For example, the type ::</td>

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<pre style="margin: 0;"> <span id="LC315" class="line" lang="plaintext">is accepted when this extension is enabled. This creates a type</span>

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<pre style="margin: 0;"> <span id="LC316" class="line" lang="plaintext">``A :: TYPE 'IntRep`` and a data constructor ``MkA :: Int# -> A``.</span>

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<pre style="margin: 0;"> <span id="LC317" class="line" lang="plaintext">Although the kind of ``A`` is inferred by GHC, there is nothing visually</span>

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<pre style="margin: 0;">-<span id="LC318" class="line" lang="plaintext">distictive about this type that indicated that is it not of kind ``Type``</span>

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<pre style="margin: 0;">+<span id="LC318" class="line" lang="plaintext">disti<span class="idiff left right">n</span>ctive about this type that indicated that is it not of kind ``Type``</span>

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<pre style="margin: 0;"> <span id="LC319" class="line" lang="plaintext">like newtypes typically are. `GADTSyntax <#gadt-style>`__ can be used to</span>

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<pre style="margin: 0;"> <span id="LC320" class="line" lang="plaintext">provide a kind signature for additional clarity ::</span>

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<pre style="margin: 0;"> <span id="LC321" class="line" lang="plaintext"></span>

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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#217aba8d015e3556e1945000eb518cf5d41df639"><strong>docs/users_guide/exts/rank_polymorphism.rst</strong></a>

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<pre style="margin: 0;"> <span id="LC187" class="line" lang="plaintext">  f4 :: (Int -> forall a. (Eq a, Show a) => a -> a) -> Bool</span>

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<pre style="margin: 0;"> <span id="LC188" class="line" lang="plaintext">  g4 ::  Int -> forall x. (Show x, Eq x) => x -> x) -> Bool</span>

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<pre style="margin: 0;"> <span id="LC189" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC190" class="line" lang="plaintext">Then the application ``f3 g3a`` is well-typed, bec<span class="idiff left right">ua</span>se ``g3a`` has a type that matches the type</span>

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<pre style="margin: 0;">+<span id="LC190" class="line" lang="plaintext">Then the application ``f3 g3a`` is well-typed, bec<span class="idiff left right">au</span>se ``g3a`` has a type that matches the type</span>

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<pre style="margin: 0;"> <span id="LC191" class="line" lang="plaintext">expected by ``f3``.  But ``f3 g3b`` is not well typed, because the foralls are in different places.</span>

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<pre style="margin: 0;"> <span id="LC192" class="line" lang="plaintext">Nor is ``f3 g3c``, where the foralls are in the same place but the variables are in a different order.</span>

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<pre style="margin: 0;">-<span id="LC193" class="line" lang="plaintext">Similarly ``f4 g4`` is not well typed, bec<span class="idiff left right">ua</span>se the constraints appear in a different order.</span>

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<pre style="margin: 0;">+<span id="LC193" class="line" lang="plaintext">Similarly ``f4 g4`` is not well typed, bec<span class="idiff left right">au</span>se the constraints appear in a different order.</span>

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<pre style="margin: 0;"> <span id="LC194" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC195" class="line" lang="plaintext">These examples can be made to typecheck by eta-expansion. For example ``f3 (\x -> g3b x)``</span>

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<pre style="margin: 0;"> <span id="LC196" class="line" lang="plaintext">is well typed, and similarly ``f3 (\x -> g3c x)`` and ``f4 (\x -> g4 x)``.</span>

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<li id="b4c40c2b6fbdb96e0e0a458683bee9a55cf15ce5">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#b4c40c2b6fbdb96e0e0a458683bee9a55cf15ce5"><strong>docs/users_guide/exts/record_wildcards.rst</strong></a>

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<pre style="margin: 0;"> <span id="LC13" class="line" lang="plaintext">    Allow the use of wildcards in record construction and pattern matching.</span>

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<pre style="margin: 0;"> <span id="LC14" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC15" class="line" lang="plaintext">Record wildcards are enabled by the language extension :extension:`RecordWildCards`. This</span>

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<pre style="margin: 0;">-<span id="LC16" class="line" lang="plaintext">exension implies :extension:`DisambiguateRecordFields`.</span>

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<pre style="margin: 0;">+<span id="LC16" class="line" lang="plaintext">ex<span class="idiff left right">t</span>ension implies :extension:`DisambiguateRecordFields`.</span>

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<pre style="margin: 0;"> <span id="LC17" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC18" class="line" lang="plaintext">For records with many fields, it can be tiresome to write out each field</span>

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<pre style="margin: 0;"> <span id="LC19" class="line" lang="plaintext">individually in a record pattern, as in ::</span>

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<li id="e72e1315ef8d24f4072dd823e6b645eb886fbe4a">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#e72e1315ef8d24f4072dd823e6b645eb886fbe4a"><strong>docs/users_guide/exts/type_families.rst</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="157" style="width: 35px; color: rgba(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">@@ -157,7 +157,7 @@ the left hand side can be explicitly bound. For example: ::</td>

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<pre style="margin: 0;"> <span id="LC157" class="line" lang="plaintext">    data instance forall a (b :: Proxy a). F (Proxy b) = FProxy Bool</span>

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<pre style="margin: 0;"> <span id="LC158" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC159" class="line" lang="plaintext">When an explicit ``forall`` is present, *all* type and kind variables mentioned</span>

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<pre style="margin: 0;">-<span id="LC160" class="line" lang="plaintext">which are not already in scope must be bound by the ``forall``:</span>

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<pre style="margin: 0;">+<span id="LC160" class="line" lang="plaintext">which are not already in scope must be bound by the ``forall``:<span class="idiff left right"> ::</span></span>

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<pre style="margin: 0;"> <span id="LC161" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC162" class="line" lang="plaintext">    data instance forall   (a :: k). F a = FOtherwise  -- rejected: k not in scope</span>

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<pre style="margin: 0;"> <span id="LC163" class="line" lang="plaintext">    data instance forall k (a :: k). F a = FOtherwise  -- accepted</span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="368" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -368,7 +368,7 @@ as for :ref:`data-instance-declarations`.</td>

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<pre style="margin: 0;"> <span id="LC368" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC369" class="line" lang="plaintext">Also in the same way as :ref:`data-instance-declarations`, when</span>

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<pre style="margin: 0;"> <span id="LC370" class="line" lang="plaintext">:extension:`ExplicitForAll` is enabled, type and kind variables can be</span>

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<pre style="margin: 0;">-<span id="LC371" class="line" lang="plaintext">explici<span class="idiff left right">lt</span>y bound in a type instance declaration.</span>

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<pre style="margin: 0;">+<span id="LC371" class="line" lang="plaintext">explici<span class="idiff left right">tl</span>y bound in a type instance declaration.</span>

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<pre style="margin: 0;"> <span id="LC372" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC373" class="line" lang="plaintext">Type family instance declarations are only legitimate when an</span>

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<pre style="margin: 0;"> <span id="LC374" class="line" lang="plaintext">appropriate family declaration is in scope - just like class instances</span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="550" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -550,7 +550,7 @@ Decidability of type synonym instances</td>

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<pre style="margin: 0;"> <span id="LC550" class="line" lang="plaintext">    Relax restrictions on the decidability of type synonym family instances.</span>

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551

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551

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<pre style="margin: 0;"> <span id="LC551" class="line" lang="plaintext"></span>

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552

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<pre style="margin: 0;"> <span id="LC552" class="line" lang="plaintext">In order to guarantee that type inference in the presence of type</span>

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553

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<pre style="margin: 0;">-<span id="LC553" class="line" lang="plaintext">families decidable, we need to place a number of additional restrictions</span>

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<pre style="margin: 0;">+<span id="LC553" class="line" lang="plaintext">families <span class="idiff left right">is </span>decidable, we need to place a number of additional restrictions</span>

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<pre style="margin: 0;"> <span id="LC554" class="line" lang="plaintext">on the formation of type instance declarations (c.f., Definition 5</span>

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<pre style="margin: 0;"> <span id="LC555" class="line" lang="plaintext">(Relaxed Conditions) of “\ `Type Checking with Open Type</span>

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<pre style="margin: 0;"> <span id="LC556" class="line" lang="plaintext">Functions <http://www.cse.unsw.edu.au/~chak/papers/SPCS08.html>`__\ ”).</span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="660" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -660,8 +660,8 @@ keyword in the family instance: ::</td>

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<pre style="margin: 0;"> <span id="LC660" class="line" lang="plaintext">      ...</span>

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<pre style="margin: 0;"> <span id="LC661" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC662" class="line" lang="plaintext">The data or type family instance for an associated type must follow</span>

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<pre style="margin: 0;">-<span id="LC663" class="line" lang="plaintext">the rule that the type indexes corresponding to class parameters must <span class="idiff left right">hav</span>e</span>

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<pre style="margin: 0;">-<span id="LC664" class="line" lang="plaintext">precisely the same as type given in the instance head. For example: ::</span>

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<pre style="margin: 0;">+<span id="LC663" class="line" lang="plaintext">the rule that the type indexes corresponding to class parameters must <span class="idiff left right">b</span>e</span>

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<pre style="margin: 0;">+<span id="LC664" class="line" lang="plaintext">precisely the same as type<span class="idiff left right">s</span> given in the instance head. For example: ::</span>

</pre>

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<pre style="margin: 0;"> <span id="LC665" class="line" lang="plaintext"></span>

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666

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<pre style="margin: 0;"> <span id="LC666" class="line" lang="plaintext">    class Collects ce where</span>

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<pre style="margin: 0;"> <span id="LC667" class="line" lang="plaintext">      type Elem ce :: Type</span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="786" style="width: 35px; color: rgba(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="786" style="width: 35px; color: rgba(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">@@ -786,49 +786,49 @@ Here are some examples:</td>

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786

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<pre style="margin: 0;"> <span id="LC786" class="line" lang="plaintext"></span>

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787

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<pre style="margin: 0;"> <span id="LC787" class="line" lang="plaintext">        type F3 a</span>

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<pre style="margin: 0;"> <span id="LC788" class="line" lang="plaintext">        type F3 [b] = b              -- BAD; only type variables allowed on the</span>

</pre>

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789

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<pre style="margin: 0;">-<span id="LC789" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      LHS, and the argument to F3 is</span>

</pre>

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790

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<pre style="margin: 0;">-<span id="LC790" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      instantiated to [b], which is not</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="791" 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">

791

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<pre style="margin: 0;">-<span id="LC791" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      a bare type variable</span>

</pre>

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789

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<pre style="margin: 0;">+<span id="LC789" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      LHS, and the argument to F3 is</span>

</pre>

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<pre style="margin: 0;">+<span id="LC790" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      instantiated to [b], which is not</span>

</pre>

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791

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<pre style="margin: 0;">+<span id="LC791" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      a bare type variable</span>

</pre>

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792

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792

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<pre style="margin: 0;"> <span id="LC792" class="line" lang="plaintext"></span>

</pre>

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793

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<pre style="margin: 0;"> <span id="LC793" class="line" lang="plaintext">        type F4 x y</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="794" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

794

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<pre style="margin: 0;"> <span id="LC794" class="line" lang="plaintext">        type F4 x x = x              -- BAD; the type variable x is repeated on</span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="795" 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="LC795" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      the LHS</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="796" 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="LC795" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      the LHS</span>

</pre>

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796

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<pre style="margin: 0;"> <span id="LC796" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="797" style="width: 35px; color: rgba(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="LC797" class="line" lang="plaintext">        type F5 a</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="798" style="width: 35px; color: rgba(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="LC798" class="line" lang="plaintext">        type F5 b = a                -- BAD; 'a' is not in scope  in the RHS</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="799" style="width: 35px; color: rgba(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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799

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<pre style="margin: 0;"> <span id="LC799" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="800" style="width: 35px; color: rgba(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="LC800" class="line" lang="plaintext">        type F6 a :: [k]</span>

</pre>

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801

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<pre style="margin: 0;"> <span id="LC801" class="line" lang="plaintext">        type F6 a = ('[] :: [x])     -- OK; the kind variable x is implicitly</span>

</pre>

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802

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<td class="diff-line-num new_line old" data-linenumber="802" 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="LC802" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>     bound by an invisible kind pattern</span>

</pre>

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803

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<td class="diff-line-num new_line old" data-linenumber="802" 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="LC803" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>     on the LHS</span>

</pre>

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<pre style="margin: 0;">+<span id="LC802" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>     bound by an invisible kind pattern</span>

</pre>

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803

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<pre style="margin: 0;">+<span id="LC803" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>     on the LHS</span>

</pre>

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804

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804

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<pre style="margin: 0;"> <span id="LC804" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="805" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

805

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805

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<pre style="margin: 0;"> <span id="LC805" class="line" lang="plaintext">        type F7 a</span>

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<td class="diff-line-num old_line" data-linenumber="806" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

806

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806

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<pre style="margin: 0;"> <span id="LC806" class="line" lang="plaintext">        type F7 a =</span>

</pre>

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807

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807

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<pre style="margin: 0;"> <span id="LC807" class="line" lang="plaintext">          Proxy ('[] :: [x])         -- BAD; the kind variable x is not bound,</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="808" 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">

808

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<td class="diff-line-num new_line old" data-linenumber="808" 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="LC808" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      even by an invisible kind pattern</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="809" 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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808

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<pre style="margin: 0;">+<span id="LC808" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      even by an invisible kind pattern</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="809" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

809

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809

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<pre style="margin: 0;"> <span id="LC809" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="810" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

810

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810

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<pre style="margin: 0;"> <span id="LC810" class="line" lang="plaintext">        type F8 (x :: a) :: [a]</span>

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<td class="diff-line-num old_line" data-linenumber="811" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

811

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811

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<pre style="margin: 0;"> <span id="LC811" class="line" lang="plaintext">        type F8 x = ('[] :: [a])     -- OK; the kind variable a is implicitly</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="812" 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">

812

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<td class="diff-line-num new_line old" data-linenumber="812" 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="LC812" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>     bound by the kind signature of the</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="813" 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">

813

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<td class="diff-line-num new_line old" data-linenumber="812" 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="LC813" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>     LHS type pattern</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="814" 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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812

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<pre style="margin: 0;">+<span id="LC812" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>     bound by the kind signature of the</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="814" 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="813" 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">

813

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<pre style="margin: 0;">+<span id="LC813" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>     LHS type pattern</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="814" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

814

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814

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<pre style="margin: 0;"> <span id="LC814" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="815" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

815

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<td class="diff-line-num new_line" data-linenumber="815" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

815

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<pre style="margin: 0;"> <span id="LC815" class="line" lang="plaintext">        type F9 (a :: k)</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="816" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

816

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816

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<pre style="margin: 0;"> <span id="LC816" class="line" lang="plaintext">        type F9 a = Maybe a          -- BAD; the kind variable k is</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="817" 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">

817

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<td class="diff-line-num new_line old" data-linenumber="817" 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="LC817" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      instantiated to Type, which is not</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="818" 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">

818

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<td class="diff-line-num new_line old" data-linenumber="817" 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="LC818" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>      a bare kind variable</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="819" 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="817" 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">

817

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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="LC817" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      instantiated to Type, which is not</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="819" 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="818" 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">

818

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<pre style="margin: 0;">+<span id="LC818" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>      a bare kind variable</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="819" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

819

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819

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<pre style="margin: 0;"> <span id="LC819" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="820" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

820

</td>

<td class="diff-line-num new_line" data-linenumber="820" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

820

</td>

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<pre style="margin: 0;"> <span id="LC820" class="line" lang="plaintext">        type F10 (a :: j) (b :: k)</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="821" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

821

</td>

<td class="diff-line-num new_line" data-linenumber="821" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

821

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<pre style="margin: 0;"> <span id="LC821" class="line" lang="plaintext">        type F10 (a :: z) (b :: z)</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

822

</td>

<td class="diff-line-num new_line" data-linenumber="822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

822

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<pre style="margin: 0;"> <span id="LC822" class="line" lang="plaintext">          = Proxy a                  -- BAD; the kind variable z is repeated,</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="823" 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">

823

</td>

<td class="diff-line-num new_line old" data-linenumber="823" 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="LC823" class="line" lang="plaintext">                                     -- as both j and k are instantiated to z</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="824" 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="823" 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">

823

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<pre style="margin: 0;">+<span id="LC823" class="line" lang="plaintext">                                     -- <span class="idiff left right">     </span>as both j and k are instantiated to z</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="824" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

824

</td>

<td class="diff-line-num new_line" data-linenumber="824" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

824

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

<pre style="margin: 0;"> <span id="LC824" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="825" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

825

</td>

<td class="diff-line-num new_line" data-linenumber="825" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

825

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<pre style="margin: 0;"> <span id="LC825" class="line" lang="plaintext">        type F11 a b</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="826" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

826

</td>

<td class="diff-line-num new_line" data-linenumber="826" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

826

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<pre style="margin: 0;"> <span id="LC826" class="line" lang="plaintext">        type forall a b. F11 a b = a -- OK; LHS type variables can be</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="827" 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">

827

</td>

<td class="diff-line-num new_line old" data-linenumber="827" 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="LC827" class="line" lang="plaintext">                                        explicitly bound with 'forall'</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="828" 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="827" 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">

827

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<pre style="margin: 0;">+<span id="LC827" class="line" lang="plaintext">                                     <span class="idiff left right">--  </span>   explicitly bound with 'forall'</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="828" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

828

</td>

<td class="diff-line-num new_line" data-linenumber="828" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

828

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

<pre style="margin: 0;"> <span id="LC828" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="829" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

829

</td>

<td class="diff-line-num new_line" data-linenumber="829" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

829

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<pre style="margin: 0;"> <span id="LC829" class="line" lang="plaintext">        type F12 (a :: k)</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="830" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

830

</td>

<td class="diff-line-num new_line" data-linenumber="830" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

830

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<pre style="margin: 0;"> <span id="LC830" class="line" lang="plaintext">        type F12 @k a = Proxy a      -- OK; visible kind application syntax is</span>

</pre>

</td>

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<td class="diff-line-num old old_line" data-linenumber="831" 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">

831

</td>

<td class="diff-line-num new_line old" data-linenumber="831" 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="LC831" class="line" lang="plaintext">                                     <span class="idiff left right">  </span>     permitted in default declarations</span>

</pre>

</td>

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<td class="diff-line-num new old_line" data-linenumber="832" 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="831" 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">

831

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<pre style="margin: 0;">+<span id="LC831" class="line" lang="plaintext">                                     <span class="idiff left right">--</span>     permitted in default declarations</span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="832" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

832

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<td class="diff-line-num new_line" data-linenumber="832" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

832

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<pre style="margin: 0;"> <span id="LC832" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num old_line" data-linenumber="833" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

833

</td>

<td class="diff-line-num new_line" data-linenumber="833" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

833

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<pre style="margin: 0;"> <span id="LC833" class="line" lang="plaintext">.. _scoping-class-params:</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="834" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

834

</td>

<td class="diff-line-num new_line" data-linenumber="834" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

834

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<pre style="margin: 0;"> <span id="LC834" class="line" lang="plaintext"></span>

</pre>

</td>

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<td class="diff-line-num unfold js-unfold 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">...</td>

<td class="diff-line-num unfold js-unfold 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">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -900,7 +900,7 @@ Import and export</td>

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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="plaintext">-----------------</span>

</pre>

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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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<pre style="margin: 0;"> <span id="LC901" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="902" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

902

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<td class="diff-line-num new_line" data-linenumber="902" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

902

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<pre style="margin: 0;"> <span id="LC902" class="line" lang="plaintext">The rules for export lists (Haskell Report `Section</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="903" 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">

903

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<pre style="margin: 0;">-<span id="LC903" class="line" lang="plaintext">5.2 <http://www.haskell.org/onlinereport/modules.html#sect5.2>`__) need<span class="idiff left right">s</span></span>

</pre>

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903

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<pre style="margin: 0;">+<span id="LC903" class="line" lang="plaintext">5.2 <http://www.haskell.org/onlinereport/modules.html#sect5.2>`__) need</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="904" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

904

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904

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<pre style="margin: 0;"> <span id="LC904" class="line" lang="plaintext">adjustment for type families:</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="905" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

905

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905

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<pre style="margin: 0;"> <span id="LC905" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="906" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

906

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906

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<pre style="margin: 0;"> <span id="LC906" class="line" lang="plaintext">-  The form ``T(..)``, where ``T`` is a data family, names the family</span>

</pre>

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<br>

</li>

<li id="b9d140c3bf30f98d03f7bb4e5bbe311b561f7f1e">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#b9d140c3bf30f98d03f7bb4e5bbe311b561f7f1e"><strong>docs/users_guide/exts/undecidable_super_classes.rst</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="39" style="width: 35px; color: rgba(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="39" style="width: 35px; color: rgba(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">@@ -39,7 +39,7 @@ thence ``C Id`` again.</td>

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39

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<td class="diff-line-num new_line" data-linenumber="39" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

39

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<pre style="margin: 0;"> <span id="LC39" class="line" lang="plaintext">But superclass constraints like these are sometimes useful, and the conservative</span>

</pre>

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40

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40

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<pre style="margin: 0;"> <span id="LC40" class="line" lang="plaintext">check is annoying where no actual recursion is involved.</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="41" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

41

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41

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<pre style="margin: 0;"> <span id="LC41" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="42" 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">

42

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<td class="diff-line-num new_line old" data-linenumber="42" 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="LC42" class="line" lang="plaintext">Moreover genu<span class="idiff left right">n</span>inely-recursive superclasses are sometimes useful. Here's a real-life</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="43" 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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42

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<pre style="margin: 0;">+<span id="LC42" class="line" lang="plaintext">Moreover genuinely-recursive superclasses are sometimes useful. Here's a real-life</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="43" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

43

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43

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<pre style="margin: 0;"> <span id="LC43" class="line" lang="plaintext">example (#10318) ::</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="44" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

44

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44

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<pre style="margin: 0;"> <span id="LC44" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="45" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

45

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<td class="diff-line-num new_line" data-linenumber="45" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

45

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<pre style="margin: 0;"> <span id="LC45" class="line" lang="plaintext">     class (Frac (Frac a) ~ Frac a,</span>

</pre>

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<br>

</li>

<li id="9114465b0120ae8f2588fc60cb49ff264de54ecb">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#9114465b0120ae8f2588fc60cb49ff264de54ecb"><strong>docs/users_guide/profiling.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1634" style="width: 35px; color: rgba(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="1634" style="width: 35px; color: rgba(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">@@ -1634,7 +1634,7 @@ Because ticky-ticky profiling requires a certain familiarity with GHC</td>

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1634

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<td class="diff-line-num new_line" data-linenumber="1634" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1634

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<pre style="margin: 0;"> <span id="LC1634" class="line" lang="plaintext">internals, we have moved the documentation to the GHC developers wiki.</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1635" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1635

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<td class="diff-line-num new_line" data-linenumber="1635" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1635

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<pre style="margin: 0;"> <span id="LC1635" class="line" lang="plaintext">Take a look at its</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1636" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1636

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<td class="diff-line-num new_line" data-linenumber="1636" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

1636

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<pre style="margin: 0;"> <span id="LC1636" class="line" lang="plaintext">:ghc-wiki:`overview of the profiling options <commentary/profiling>`,</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="1637" 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">

1637

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<td class="diff-line-num new_line old" data-linenumber="1637" 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="LC1637" class="line" lang="plaintext">which include<span class="idiff left right">d</span>s a link to the ticky-ticky profiling page.</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="1638" 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="1637" 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">

1637

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<pre style="margin: 0;">+<span id="LC1637" class="line" lang="plaintext">which includes a link to the ticky-ticky profiling page.</span>

</pre>

</td>

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<pre style="margin: 0;"> <span id="LC1638" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC1639" class="line" lang="plaintext">.. [1]</span>

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<pre style="margin: 0;"> <span id="LC1640" class="line" lang="plaintext">   :ghc-flag:`-fprof-auto` was known as ``-auto-all`` prior to</span>

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</li>

<li id="eda53fd56da292564e3d1dde312eafab2a8d7a4f">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#eda53fd56da292564e3d1dde312eafab2a8d7a4f"><strong>docs/users_guide/win32-dlls.rst</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="132" style="width: 35px; color: rgba(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">@@ -132,7 +132,7 @@ your paths:</td>

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<pre style="margin: 0;"> <span id="LC132" class="line" lang="plaintext">  - replace ``\`` with ``\\``</span>

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<pre style="margin: 0;"> <span id="LC133" class="line" lang="plaintext">  - expand relative paths to absolute paths</span>

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<pre style="margin: 0;"> <span id="LC134" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC135" class="line" lang="plaintext">If you want to opt out of all preprocessing just expli<span class="idiff left right">tic</span>ly use namespaces in</span>

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<pre style="margin: 0;">+<span id="LC135" class="line" lang="plaintext">If you want to opt out of all preprocessing just expli<span class="idiff left right">cit</span>ly use namespaces in</span>

</pre>

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<pre style="margin: 0;"> <span id="LC136" class="line" lang="plaintext">your paths. Due to this change, if you need to open raw devices (e.g. COM ports)</span>

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<pre style="margin: 0;"> <span id="LC137" class="line" lang="plaintext">you need to use the device namespace explicitly. (e.g. ``\\.\COM1``). GHC and</span>

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<pre style="margin: 0;"> <span id="LC138" class="line" lang="plaintext">Haskell programs in general no longer support opening devices in the legacy</span>

</pre>

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</li>

<li id="8b79f294cbb56e8b9cb6a9be7b94dc71c1b975a9">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/cf01477f03da13caaf78caacc5b001cb46a86685...3e884d14102948ad49d75611da247beff25911a4#8b79f294cbb56e8b9cb6a9be7b94dc71c1b975a9"><strong>libraries/base/GHC/OverloadedLabels.hs</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="17" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<pre style="margin: 0;"> <span id="LC17" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stability   :  internal</span></span>

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<pre style="margin: 0;"> <span id="LC18" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Portability :  non-portable (GHC extensions)</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC19" 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="LC20" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This module defines the 'IsLabel' class <span class="idiff left right">is </span>used by the</span></span>

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<pre style="margin: 0;">+<span id="LC20" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This module defines the 'IsLabel' class used by the</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC21" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- @OverloadedLabels@ extension.  See the</span></span>

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<td class="diff-line-num old_line" data-linenumber="22" style="width: 35px; color: rgba(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="LC22" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <https://gitlab.haskell.org/ghc/ghc/wikis/records/overloaded-record-fields/overloaded-labels wiki page></span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="23" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

23

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<td class="diff-line-num new_line" data-linenumber="23" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">

23

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

<pre style="margin: 0;"> <span id="LC23" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- for more details.</span></span>

</pre>

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