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<h3>
cgibbard pushed to branch wip/ttg-con-pat
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf9c3625a5c2b3086b945f025ae42eb2aff757fd">cf9c3625</a></strong>
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<span>by Cale Gibbard</span>
<i>at 2020-04-13T10:44:24-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add comment about Haddock's use of CollectPass
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<h4>1 changed file:</h4>
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<a href="#7a1af22e4c32b9aa6ec708d9d3788e1c4db5da9a">
compiler/GHC/Hs/Utils.hs
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<h4>Changes:</h4>
<li id="7a1af22e4c32b9aa6ec708d9d3788e1c4db5da9a">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf9c3625a5c2b3086b945f025ae42eb2aff757fd#7a1af22e4c32b9aa6ec708d9d3788e1c4db5da9a"><strong>compiler/GHC/Hs/Utils.hs</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1161" style="width: 35px; color: rgba(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">@@ -1161,9 +1161,12 @@ collect_pat pat bndrs = case pat of</td>
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<pre style="margin: 0;"> <span id="LC1161" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SplicePat</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">bndrs</span></span>
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<td class="diff-line-num old_line" data-linenumber="1162" style="width: 35px; color: rgba(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="1162" style="width: 35px; color: rgba(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="LC1162" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">XPat</span> <span class="n" style="color: #333;">ext</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">collectXXPat</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Proxy</span> <span class="o" style="font-weight: 600;">@</span><span class="n" style="color: #333;">p</span><span class="p">)</span> <span class="n" style="color: #333;">ext</span> <span class="n" style="color: #333;">bndrs</span></span>
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<pre style="margin: 0;"> <span id="LC1163" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1164" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This class specifies how to collect variable identifiers from extension patterns in the given pass.</span></span>
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<pre style="margin: 0;">+<span id="LC1164" class="line" lang="haskell"><span class="cd">-- <span class="idiff left right">| </span>This class specifies how to collect variable identifiers from extension patterns in the given pass.</span></span>
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<pre style="margin: 0;"> <span id="LC1165" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Consumers of the GHC API that define their own passes should feel free to implement instances in order</span></span>
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<pre style="margin: 0;"> <span id="LC1166" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- to make use of functions which depend on it.</span></span>
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<pre style="margin: 0;">+<span id="LC1167" 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="LC1168" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- In particular, Haddock already makes use of this, with an instance for its 'DocNameI' pass so that</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1169" 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="LC1169" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- it can reuse the code in GHC for collecting binders.</span></span>
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<pre style="margin: 0;"> <span id="LC1170" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">XRec</span> <span class="n" style="color: #333;">p</span> <span class="kt" style="color: #458; font-weight: 600;">Pat</span> <span class="o" style="font-weight: 600;">~</span> <span class="kt" style="color: #458; font-weight: 600;">Located</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pat</span> <span class="n" style="color: #333;">p</span><span class="p">))</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">CollectPass</span> <span class="n" style="color: #333;">p</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC1171" class="line" lang="haskell"> <span class="n" style="color: #333;">collectXXPat</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Proxy</span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">XXPat</span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">IdP</span> <span class="n" style="color: #333;">p</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">IdP</span> <span class="n" style="color: #333;">p</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC1172" class="line" lang="haskell"></span>
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