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1302ef19
by Sasha Bogicevic at 2026-10-30T13:29:16-04:00
Don't report -XStrict-generated bangs under -Wredundant-bang-patterns
The -XStrict flag causes the desugarer to insert bang patterns.
These are not user-written, so -Wredundant-bang-patterns must not
report them.
To achieve this, the desugarer now tracks whether it is desugaring
compiler-generated code (similar to the typechecker's 'tcl_in_gen_code').
Bangs inserted by -XStrict are given generated spans, which suppresses
the "redundant bang" warnings without otherwise affecting pattern-match
warnings.
Fixes #27323
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5ab73061
by Luite Stegeman at 2026-10-30T13:29:26-04:00
rts: tombstone Weak# copies that lose an evacuation race (#23160)
Mark the losing copy of a Weak# during an evacuation race in parallel
GC with stg_DEAD_WEAK_info. This ensures that the nonmoving GC
doesn't follow dangling pointers, leading to crashes.
Fixes #23160
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e7adc5c2
by Zubin Duggal at 2026-10-30T13:29:27-04:00
ghci: Drop GHCi's exception context when rethrowing in ghc -e
Fixes #27847.
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3e15d2a1
by Zubin Duggal at 2026-10-30T13:29:27-04:00
base: Preserve exception context in modifyIOError
Fixes #27851.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/446
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1bb57377
by Zubin Duggal at 2026-10-30T13:29:27-04:00
base: Preserve exception context in mapException
Fixes #27851.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/446
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9d0059e9
by Zubin Duggal at 2026-10-30T13:29:27-04:00
base: Preserve exception context when rethrowing exceptions in Handle reads
Fixes #27875.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/447
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870d80ef
by Zubin Duggal at 2026-10-30T13:29:27-04:00
base: Preserve exception context when rethrowing exceptions in hClose
Fixes #27875.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/447
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5f6426e1
by Zubin Duggal at 2026-10-30T13:29:27-04:00
base: Preserve exception context when rethrowing exceptions in Windows openFile
Fixes #27875.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/447
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17daa9e3
by Zubin Duggal at 2026-10-30T13:29:27-04:00
base: Preserve exception context when rethrowing exceptions in executablePath
Fixes #27875.
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/447
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c3f45088
by Facundo Domínguez at 2026-10-30T13:29:35-04:00
Have haddock --incremental look for the module in -this-unit-id
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74443105
by sheaf at 2026-10-30T13:29:51-04:00
mightBeFunTy: hotfix for #27979
ce01ccb6 refactored 'GHC.Types.RepType.mightBeFunTy' to look through
unary classes. That change introduced the helper function 'unwrap_type'
which was supposed to always return an unwrapped type, but its fallback
equation mistakenly returned the original type. This caused the
subsequent 'tyConAppTyCon_maybe' to fail in cases where it should
succeed (e.g. looking through foralls).
In this commit, we move all the unary class unwrapping logic into
'unwrapType' where it belonged from the start, and update the
documentation of 'unwrapType' to better explain what it should be used
for (#26695).
Fixes #27979 #26695
-------------------------
Metric Increase:
T5642
-------------------------
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4ebb6ae0
by Alan Zimmerman at 2026-10-30T13:29:51-04:00
EPA: Tidy up ExactPrint.markAnnListA'
It takes an action which can modify the AnnList, but this
is never used. So remove it.
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e70f913b
by Sylvain Henry at 2026-10-30T13:29:56-04:00
gitmodules: ignore dirty libffi-clib submodule (#26785)
`./boot` runs autoreconf in libraries/libffi-clib, which leaves
`configure~` behind and rewrites the tracked `aclocal.m4` whenever the
local automake version differs from the one that generated it. Every
checkout then looks dirty. Ignore working-tree changes in the submodule
(`ignore = dirty`); a changed submodule commit is still reported.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>