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<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Andrei Borzenkov pushed to branch wip/sand-witch/#16635-improve-errors at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54b83253e6a02e6a3d01caecc78e4c3ad9c00934">54b83253</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2023-06-06T12:59:25-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Generate Addr# access ops programmatically
The existing utils/genprimopcode/gen_bytearray_ops.py was
relocated and extended for this purpose. Additionally, hadrian
now knows about this script and uses it when generating primops.txt
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ecadbc7e7eda5b854b7dcbff7f1dee2dd2c0883c">ecadbc7e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-06T13:00:01-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>ghcup-metadata: Only add Nightly tag when replacing LatestNightly
Previously we were always adding the Nightly tag, but this led to all
the previous builds getting an increasing number of nightly tags over
time. Now we just add it once, when we remove the LatestNightly tag.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4aea0a72040e862ab518d911057905e8cf8d15fb">4aea0a72</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2023-06-07T12:06:46+02:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Invisible binders in type declarations (#22560)
This patch implements @k-binders introduced in GHC Proposal #425
and guarded behind the TypeAbstractions extension:
type D :: forall k j. k -> j -> Type
data D @k @j a b = ...
^^ ^^
To represent the new syntax, we modify LHsQTyVars as follows:
- hsq_explicit :: [LHsTyVarBndr () pass]
+ hsq_explicit :: [LHsTyVarBndr (HsBndrVis pass) pass]
HsBndrVis is a new data type that records the distinction between
type variable binders written with and without the @ sign:
data HsBndrVis pass
= HsBndrRequired
| HsBndrInvisible (LHsToken "@" pass)
The rest of the patch updates GHC, template-haskell, and haddock
to handle the new syntax.
Parser:
The PsErrUnexpectedTypeAppInDecl error message is removed.
The syntax it used to reject is now permitted.
Renamer:
The @ sign does not affect the scope of a binder, so the changes to
the renamer are minimal. See rnLHsTyVarBndrVisFlag.
Type checker:
There are three code paths that were updated to deal with the newly
introduced invisible type variable binders:
1. checking SAKS: see kcCheckDeclHeader_sig, matchUpSigWithDecl
2. checking CUSK: see kcCheckDeclHeader_cusk
3. inference: see kcInferDeclHeader, rejectInvisibleBinders
Helper functions bindExplicitTKBndrs_Q_Skol and bindExplicitTKBndrs_Q_Tv
are generalized to work with HsBndrVis.
Updates the haddock submodule.
Metric Increase:
MultiLayerModulesTH_OneShot
Co-authored-by: Simon Peyton Jones <simon.peytonjones@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b76009974ff34fe7730fc0343a1977dd1a3183e2">b7600997</a></strong>
<div>
<span> by Josh Meredith </span> <i> at 2023-06-07T13:10:21-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>JS: clean up FFI 'fat arrow' calls in base:System.Posix.Internals (#23481)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e5d3940d80ee4b05db47e8a0e80207766d8dc934">e5d3940d</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2023-06-07T18:01:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Update CODEOWNERS</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/960ef11105496641c114f3b2f0786119f2cc7208">960ef111</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Remove IPE enabled builds from CI"
This reverts commit 41b41577c8a28c236fa37e8f73aa1c6dc368d951.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bad1c8ccadb16652c7d808aacbd697a6e5e5ec72">bad1c8cc</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Update user's guide and release notes, small fixes"
This reverts commit 3ded9a1cd22f9083f31bc2f37ee1b37f9d25dab7.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/12726d90df5e7bd57f6c9086aa7452cf46be482b">12726d90</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Add IPE-enabled builds to CI"
This reverts commit 09d93bd0305b0f73422ce7edb67168c71d32c15f.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dbdd989dff2606426248e8df9034a4ff6e2c030d">dbdd989d</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Add optional dependencies to ./configure output"
This reverts commit a00488665cd890a26a5564a64ba23ff12c9bec58.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/240483af5ef8b5097d6095eacdb2288cc5f92141">240483af</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Fix IPE data decompression buffer allocation"
This reverts commit 0e85099b9316ee24565084d5586bb7290669b43a.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b8c7dd8518854216f3d309fa16bec8fdc47b78e">9b8c7dd8</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Fix byte order of IPE data, fix IPE tests"
This reverts commit 7872e2b6f08ea40d19a251c4822a384d0b397327.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3364379bc7e20e7a61f94e038e85df6b70896933">3364379b</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Add note describing IPE data compression"
This reverts commit 69563c97396b8fde91678fae7d2feafb7ab9a8b0.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fda30670f70a7ab9c69e72983c378e628965eae5">fda30670</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Fix libzstd detection in configure and RTS"
This reverts commit 5aef5658ad5fb96bac7719710e0ea008bf7b62e0.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1cbcda9ad6a2081e2519ca74148542d175423b2e">1cbcda9a</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "IPE data compression"
This reverts commit b7a640acf7adc2880e5600d69bcf2918fee85553.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb5e99aad3b70e10753f25f9280c1882ccbed2af">fb5e99aa</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Add IPE compression to configure"
This reverts commit 5d1f2411f4becea8650d12d168e989241edee186.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2cdcb3a59ac8f52fe0871490aa0d047e2d23cf6e">2cdcb3a5</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Revert "Restructure IPE buffer layout"
This reverts commit f3556d6cefd3d923b36bfcda0c8185abb1d11a91.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3acaa9b6f0c658c31c70b68c895d16872e9e701b">3acaa9b6</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2023-06-08T10:27:44+04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Capture scoped kind variables at type-checking phase (#16635)
Like descibed in new Note [A scoping errors during type check] in
GHC.Tc.Types, I made ScopedTypeVariables work on type level like in
term level.
For now that only means, that the error about kind variables scoped
into type are rejected at the elaboration time, because we can't
generalize the type by adding type-level lambda - we simply have no one.
</pre>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
21 changed files:
</h4>
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<a href="#a6883fe5ffe69ebc49b16c7e553faba405221f57">
.gitlab/gen_ci.hs
</a>
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<a href="#4f7fc727dfc06c2591e6043f44b9602eddfc3673">
.gitlab/jobs.yaml
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<a href="#87873753e9f32a3fb27939a82d944277fa501572">
.gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py
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<a href="#abe895765c4ce08c5dfbc95e5e3c5db67ff92ded">
CODEOWNERS
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<a href="#06764eb0158306b83ab1998d18316392a51838c2">
compiler/GHC/Builtin/Names/TH.hs
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compiler/GHC/Builtin/bytearray-ops.txt.pp
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utils/genprimopcode/gen_bytearray_ops.py
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compiler/GHC/Builtin/gen_bytearray_addr_access_ops.py
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<a href="#451725cc4e5d443a3b7c2adcdf224840f953b7e2">
compiler/GHC/Builtin/primops.txt.pp
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compiler/GHC/Core/TyCon.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/Parser/Errors/Ppr.hs
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compiler/GHC/Parser/Errors/Types.hs
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compiler/GHC/Tc/Errors/Types.hs
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