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<h3>
 Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/495a65cbc48d5209f30fd4248fc11ab06b05d4c3">495a65cb</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2019-05-31T06:02:33Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Implement (Functor.<$) for Data.Functor.{Compose,Product,Sum}

This allows us to make use of the (<$) implementations of the
underlying functors.
</pre>
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<h4>3 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#1b3deda2f389b0b871b8f3101d7d70995167c432">
libraries/base/Data/Functor/Compose.hs
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<li class="file-stats">
<a href="#17d5718aa5dd29ff21e1dfcfdb2a57efc392796c">
libraries/base/Data/Functor/Product.hs
</a>
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<li class="file-stats">
<a href="#43d6a6cd2dc6f95f29af644c9575eb4ad3356330">
libraries/base/Data/Functor/Sum.hs
</a>
</li>
</ul>
<h4>Changes:</h4>
<li id="1b3deda2f389b0b871b8f3101d7d70995167c432">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/495a65cbc48d5209f30fd4248fc11ab06b05d4c3#1b3deda2f389b0b871b8f3101d7d70995167c432"><strong>libraries/base/Data/Functor/Compose.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="100" style="width: 35px; color: rgba(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="100" style="width: 35px; color: rgba(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">@@ -100,6 +100,7 @@ instance (Show1 f, Show1 g, Show a) => Show (Compose f g a) where</td>
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<pre style="margin: 0;"> <span id="LC100" class="line" lang="haskell"><span class="cd">-- | @since 4.9.0.0</span></span>
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<td class="diff-line-num old_line" data-linenumber="101" style="width: 35px; color: rgba(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="LC101" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Functor</span> <span class="n" style="color: #333;">f</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Functor</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Functor</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Compose</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC102" class="line" lang="haskell">    <span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Compose</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Compose</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span><span class="p">)</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC103" class="line" lang="haskell">    <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Compose</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Compose</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span><span class="p">)</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC104" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC105" class="line" lang="haskell"><span class="cd">-- | @since 4.9.0.0</span></span>
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<pre style="margin: 0;"> <span id="LC106" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="n" style="color: #333;">f</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Compose</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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</li>
<li id="17d5718aa5dd29ff21e1dfcfdb2a57efc392796c">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/495a65cbc48d5209f30fd4248fc11ab06b05d4c3#17d5718aa5dd29ff21e1dfcfdb2a57efc392796c"><strong>libraries/base/Data/Functor/Product.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="81" style="width: 35px; color: rgba(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="81" style="width: 35px; color: rgba(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">@@ -81,6 +81,7 @@ instance (Show1 f, Show1 g, Show a) => Show (Product f g a) where</td>
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<pre style="margin: 0;"> <span id="LC81" class="line" lang="haskell"><span class="cd">-- | @since 4.9.0.0</span></span>
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<pre style="margin: 0;"> <span id="LC82" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Functor</span> <span class="n" style="color: #333;">f</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Functor</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Functor</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Product</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC83" class="line" lang="haskell">    <span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">y</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">y</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC84" class="line" lang="haskell">    <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">y</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="n" style="color: #333;">y</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC85" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC86" class="line" lang="haskell"><span class="cd">-- | @since 4.9.0.0</span></span>
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<pre style="margin: 0;"> <span id="LC87" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="n" style="color: #333;">f</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Product</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<li id="43d6a6cd2dc6f95f29af644c9575eb4ad3356330">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/495a65cbc48d5209f30fd4248fc11ab06b05d4c3#43d6a6cd2dc6f95f29af644c9575eb4ad3356330"><strong>libraries/base/Data/Functor/Sum.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -85,6 +85,9 @@ instance (Functor f, Functor g) => Functor (Sum f g) where</td>
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<pre style="margin: 0;"> <span id="LC85" class="line" lang="haskell">    <span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InL</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">InL</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC86" class="line" lang="haskell">    <span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InR</span> <span class="n" style="color: #333;">y</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">InR</span> <span class="p">(</span><span class="n" style="color: #333;">fmap</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">y</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC87" class="line" lang="haskell"></span>
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<td class="diff-line-num new old_line" data-linenumber="88" 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="LC88" class="line" lang="haskell">    <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InL</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">InL</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="n" style="color: #333;">x</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC89" class="line" lang="haskell">    <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InR</span> <span class="n" style="color: #333;">y</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">InR</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;"><$</span> <span class="n" style="color: #333;">y</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC90" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC91" class="line" lang="haskell"><span class="cd">-- | @since 4.9.0.0</span></span>
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<pre style="margin: 0;"> <span id="LC92" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="n" style="color: #333;">f</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Foldable</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Sum</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC93" class="line" lang="haskell">    <span class="n" style="color: #333;">foldMap</span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InL</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldMap</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">x</span></span>
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