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<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Matthew Pickering pushed to branch wip/tc-lcl-env-refactor 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/06b5f71d19e4e588623eed74c082cbed9f592fc1">06b5f71d</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-17T09:00:48+01:00 </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;'>Zonking monad transformers
- Introduce two zonking monad transformers, ZonkT and ZonkBndrT.
ZonkT is a reader monad transformer over ZonkEnv.
ZonkBndrT m is the codensity monad over ZonkT m.
ZonkBndrT is used for computations that accumulate binders
in the ZonkEnv.
- Split up the zonking functions relating purely to types into
GHC.Tc.Zonk.Type.
This should allow us to introduce a slimmed-down zonking monad,
which doesn't wrap the full TcM but a much smaller monad.
This opens up the possibility of refactoring ErrCtxt to use this
smaller zonking monad.
- Refactor the remaining zonking functions to work over the monads
ZonkTcM = ZonkT TcM and ZonkBndrTcM = ZonkBndrT TcM.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e722f3e341b7358e6e862c3d099212b1d016e26c">e722f3e3</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:00:48+01:00 </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;'>Use setSrcSpan rather than setLclEnv in solveForAll
TODO
Fixes #23390
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b524595e467cf27e06e352e8276064ff0fc98146">b524595e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:06:03+01:00 </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;'>Split up TcLclEnv from GHC.Tc.Types
By splitting up TcLclEnv from GHC.Tc.Types we allow GHC.Hs.Expr to no
longer depend on the TcM monad and all that entails.
* New modules for the LclEnv and all its basic parts
* CtLocEnv
* TcLclCtxt (setLclEnv vs restoreLclEnv)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0d0441e9a425163f133f098dc5eb6542ed5c6f7c">0d0441e9</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:08:49+01:00 </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;'>Integrate into zonking patch
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c7ef7bc66f205acf6600c95217a4d12f6b645a7c">c7ef7bc6</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:09:41+01:00 </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;'>Remove dependency of GHC.Tc.Utils.TcType on GHC.Driver.Session
This removes the usage of DynFlags from Tc.Utils.TcType so that it no
longer depends on GHC.Driver.Session. In general we don't want anything
which is a dependency of Language.Haskell.Syntax to depend on
GHC.Driver.Session and removing this edge gets us closer to that goal.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ed792c703b114c1ef59f6cb0bc62db02f052bfb">3ed792c7</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:09:42+01:00 </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;'>Move isIrrefutableHsPat to GHC.Rename.Utils and rename to isIrrefutableHsPatRn
This removes edge from GHC.Hs.Pat to GHC.Driver.Session, which makes
Language.Haskell.Syntax end up depending on GHC.Driver.Session.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6cc6c144e2f7258962d77891907fdea14b00c5e5">6cc6c144</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:09:43+01:00 </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;'>Remove dependency of GHC.Tc.Types.Constraint on GHC.Driver.Session
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/740013e902543d90b3083882e64b146de0da2b68">740013e9</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:09:43+01:00 </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;'>hole fit plugins: Split definition into own module
The hole fit plugins are defined in terms of TcM, a type we want to
avoid depending on from `GHC.Tc.Errors.Types`. By moving it into its own
module we can remove this dependency. It also simplifies the necessary
boot file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3fb4e6c10b72d6efb8ad0662e032c044dcc02082">3fb4e6c1</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:09:43+01:00 </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;'>Move GHC.Core.Opt.CallerCC Types into separate module
This allows `GHC.Driver.DynFlags` to depend on these types without
depending on CoreM and hence the entire simplifier pipeline.
We can also remove a hs-boot file with this change.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0b0e48ad87297472d8dacf6e6334b7d29b348fc5">0b0e48ad</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-17T09:09:43+01:00 </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;'>Remove unecessary SOURCE import
</pre>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
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compiler/GHC/Core/Opt/CallerCC.hs
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compiler/GHC/Core/Type.hs
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compiler/GHC/Data/IOEnv.hs
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compiler/GHC/Driver/DynFlags.hs
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compiler/GHC/Driver/Main.hs
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compiler/GHC/Hs/Expr.hs
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