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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Vladislav Zavialov pushed to branch wip/int-index/wildcard-binders at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
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<ul>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a5bebf85071f36c0b81cf888df5f5af27f70ee9">3a5bebf8</a></strong>
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<span> by Matthew Pickering </span> <i> at 2024-08-28T14:16:42-04:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>simplifier: Fix space leak during demand analysis
The lazy structure (a list) in a strict field in `DmdType` is not fully
forced which leads to a very large thunk build-up.
It seems there is likely still more work to be done here as it seems we
may be trading space usage for work done. For now, this is the right
choice as rather than using all the memory on my computer, compilation
just takes a little bit longer.
See #25196
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c2525e9eaacc62e7f11db0bf0793554c01ca1544">c2525e9e</a></strong>
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<span> by Ryan Scott </span> <i> at 2024-08-28T14:17:17-04:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add missing parenthesizeHsType in cvtp's InvisP case
We need to ensure that when we convert an `InvisP` (invisible type pattern) to
a `Pat`, we parenthesize it (at precedence `appPrec`) so that patterns such as
`@(a :: k)` will parse correctly when roundtripped back through the parser.
Fixes #25209.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf166984c86b04769be5fd6967ed5b99b1d18494">cf166984</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2024-08-29T10:00:08+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>WIP: Wildcard binders in type declarations
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
30 changed files:
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compiler/GHC/Hs/Decls.hs
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compiler/GHC/Hs/Instances.hs
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compiler/GHC/Hs/Type.hs
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compiler/GHC/HsToCore/Quote.hs
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compiler/GHC/Iface/Ext/Ast.hs
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compiler/GHC/Parser.y
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compiler/GHC/Parser/PostProcess.hs
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compiler/GHC/Rename/HsType.hs
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compiler/GHC/Rename/Module.hs
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compiler/GHC/Tc/Deriv/Generate.hs
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compiler/GHC/Tc/Errors/Ppr.hs
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compiler/GHC/Tc/Errors/Types.hs
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compiler/GHC/Tc/Gen/HsType.hs
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compiler/GHC/Tc/Gen/Sig.hs
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compiler/GHC/Tc/TyCl.hs
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compiler/GHC/Types/Demand.hs
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compiler/Language/Haskell/Syntax/Extension.hs
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compiler/Language/Haskell/Syntax/Type.hs
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testsuite/tests/haddock/should_compile_flag_haddock/T17544.stderr
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testsuite/tests/parser/should_compile/T20452.stderr
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testsuite/tests/partial-sigs/should_fail/WildcardInTypeSynonymLHS.hs
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testsuite/tests/partial-sigs/should_fail/WildcardInTypeSynonymLHS.stderr
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