[Git][ghc/ghc][wip/or-pats] 17 commits: EPA: Incorrect locations for UserTyVar with '@'
David (@knothed)
gitlab at gitlab.haskell.org
Mon Sep 11 09:33:45 UTC 2023
David pushed to branch wip/or-pats at Glasgow Haskell Compiler / GHC
Commits:
b34f8586 by Alan Zimmerman at 2023-09-07T10:58:38-04:00
EPA: Incorrect locations for UserTyVar with '@'
In T13343.hs, the location for the @ is not within the span of the
surrounding UserTyVar.
type Bad @v = (forall (v1 :: RuntimeRep) (a1 :: TYPE v). a1) :: TYPE v
Widen it so it is captured.
Closes #23887
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8046f020 by Finley McIlwaine at 2023-09-07T10:59:15-04:00
Bump haddock submodule to fix #23920
Removes the fake export of `FUN` from Prelude. Fixes #23920.
Bumps haddock submodule.
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e0aa8c6e by Krzysztof Gogolewski at 2023-09-07T11:00:03-04:00
Fix wrong role in mkSelCo_maybe
In the Lint failure in #23938, we start with a coercion Refl :: T a ~R T a,
and call mkSelCo (SelTyCon 1 nominal) Refl.
The function incorrectly returned Refl :: a ~R a. The returned role
should be nominal, according to the SelCo rule:
co : (T s1..sn) ~r0 (T t1..tn)
r = tyConRole tc r0 i
----------------------------------
SelCo (SelTyCon i r) : si ~r ti
In this test case, r is nominal while r0 is representational.
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1d92f2df by Gergő Érdi at 2023-09-08T04:04:30-04:00
If we have multiple defaulting plugins, then we should zonk in between them
after any defaulting has taken place, to avoid a defaulting plugin seeing
a metavariable that has already been filled.
Fixes #23821.
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eaee4d29 by Gergő Érdi at 2023-09-08T04:04:30-04:00
Improvements to the documentation of defaulting plugins
Based on @simonpj's draft and comments in !11117
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ede3df27 by Alan Zimmerman at 2023-09-08T04:05:06-04:00
EPA: Incorrect span for LWarnDec GhcPs
The code (from T23465.hs)
{-# WARNInG in "x-c" e "d" #-}
e = e
gives an incorrect span for the LWarnDecl GhcPs
Closes #23892
It also fixes the Test23465/Test23464 mixup
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a0ccef7a by Krzysztof Gogolewski at 2023-09-08T04:05:42-04:00
Valid hole fits: don't suggest unsafeCoerce (#17940)
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88b942c4 by Oleg Grenrus at 2023-09-08T19:58:42-04:00
Add warning for badly staged types.
Resolves #23829.
The stage violation results in out-of-bound names in splices.
Technically this is an error, but someone might rely on this!?
Internal changes:
- we now track stages for TyVars.
- thLevel (RunSplice _) = 0, instead of panic, as reifyInstances does
in fact rename its argument type, and it can contain variables.
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9861f787 by Ben Gamari at 2023-09-08T19:59:19-04:00
rts: Fix invalid symbol type
I suspect this code is dead since we haven't observed this failing
despite the obviously incorrect macro name.
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03ed6a9a by Ben Gamari at 2023-09-08T19:59:19-04:00
testsuite: Add simple test exercising C11 atomics in GHCi
See #22012.
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1aa5733a by Ben Gamari at 2023-09-08T19:59:19-04:00
rts/RtsSymbols: Add AArch64 outline atomic operations
Fixes #22012 by adding the symbols described in
https://github.com/llvm/llvm-project/blob/main/llvm/docs/Atomics.rst#libcalls-atomic.
Ultimately this would be better addressed by #22011, but this is a first
step in the right direction and fixes the immediate symptom.
Note that we dropped the `__arch64_cas16` operations as these provided
by all platforms's compilers. Also, we don't link directly against the
libgcc/compiler-rt definitions but rather provide our own wrappers to
work around broken toolchains (e.g. https://bugs.gentoo.org/868018).
Generated via https://gitlab.haskell.org/ghc/ghc/-/snippets/5733.
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8f7d3041 by Matthew Pickering at 2023-09-08T19:59:55-04:00
ci: Build debian12 and fedora38 bindists
This adds builds for the latest releases for fedora and debian
We build these bindists in nightly and release pipelines.
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a1f0d55c by Felix Leitz at 2023-09-08T20:00:37-04:00
Fix documentation around extension implication for MultiParamTypeClasses/ConstrainedClassMethods.
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0fdb307f by David Knothe at 2023-09-11T11:33:09+02:00
Implement Or Patterns (Proposal 0522)
This commit introduces a language extension, `OrPatterns`, as described in proposal 0522.
It extends the syntax by the production
`pat -> (one of pat1, ..., patk)`.
The or-pattern `pat` succeeds iff one of the patterns `pat1`, ..., `patk` succeed, in this order.
Currently, or-patterns cannot bind variables. They are still of great use as they discourage the use of wildcard patterns in favour of writing out all "default" cases explicitly:
```
isIrrefutableHsPat pat = case pat of
...
(one of WildPat{}, VarPat{}, LazyPat{})
= True
(one of PArrPat{}, ConPatIn{}, LitPat{}, NPat{}, NPlusKPat{}, ListPat{})
= False
```
This makes code safer where data types are extended now and then - just like GHC's `Pat` in the example when adding the new `OrPat` constructor. This would be catched by `-fwarn-incomplete-patterns`, but not when a wildcard pattern was used.
- Update submodule haddock.
stuff
Implement empty one of
Prohibit TyApps
Remove unused
update submodule haddock
Update tests
Parser.y
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fdeb96e7 by David Knothe at 2023-09-11T11:33:10+02:00
infixpat
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48f03bad by David Knothe at 2023-09-11T11:33:11+02:00
ppr&tests
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af82f8db by David Knothe at 2023-09-11T11:33:11+02:00
Fix PatSyn tests
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30 changed files:
- .gitlab-ci.yml
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py
- compiler/GHC/Core/Coercion.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Decls.hs
- compiler/GHC/Hs/Pat.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Match.hs
- compiler/GHC/HsToCore/Pmc/Check.hs
- compiler/GHC/HsToCore/Pmc/Desugar.hs
- compiler/GHC/HsToCore/Pmc/Types.hs
- compiler/GHC/HsToCore/Utils.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Parser.y
- compiler/GHC/Parser/Annotation.hs
- compiler/GHC/Parser/Errors/Ppr.hs
- compiler/GHC/Parser/Errors/Types.hs
- compiler/GHC/Parser/Lexer.x
- compiler/GHC/Parser/PostProcess.hs
- compiler/GHC/Rename/Bind.hs
- compiler/GHC/Rename/Expr.hs
- compiler/GHC/Rename/HsType.hs
- compiler/GHC/Rename/Pat.hs
- compiler/GHC/Rename/Splice.hs
- compiler/GHC/Rename/Splice.hs-boot
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e5ea14ed3f48a69a3f228e3cf7b2ee601fb3a9ce...af82f8db8f7e03e130c28ef09a2a2c9c5fffaa5a
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e5ea14ed3f48a69a3f228e3cf7b2ee601fb3a9ce...af82f8db8f7e03e130c28ef09a2a2c9c5fffaa5a
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