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The HomeUnitId is only used by the Cmm parser and this one has access to
the DynFlags, so it can grab the UnitId of the HomeUnit from them.
Bump haddock submodule
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Haskell and Cmm parsers/lexers now report errors and warnings using ADTs
defined in GHC.Parser.Errors. They can be printed using functions in
GHC.Parser.Errors.Ppr.
Some of the errors provide hints with a separate ADT (e.g. to suggest to
turn on some extension). For now, however, hints are not consistent
across all messages. For example some errors contain the hints in the
main message. I didn't want to change any message with this patch. I
expect these changes to be discussed and implemented later.
Surprisingly, this patch enhances performance. On CI
(x86_64/deb9/hadrian, ghc/alloc):
parsing001 -11.5%
T13719 -2.7%
MultiLayerModules -3.5%
Naperian -3.1%
Bump haddock submodule
Metric Decrease:
MultiLayerModules
Naperian
T13719
parsing001
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Platform constant wrappers took a DynFlags parameter, hence implicitly
used the target platform constants. We removed them to allow support
for several platforms at once (#14335) and to avoid having to pass
the full DynFlags to every function (#17957).
Metric Decrease:
T4801
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Update Haddock submodule
Metric Increase:
haddock.compiler
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* SysTools
* Parser
* GHC.Builtin
* GHC.Iface.Recomp
* Settings
Update Haddock submodule
Metric Decrease:
Naperian
parsing001
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submodule updates: nofib, haddock
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There were two issues with this instance:
* its existence meant that a pattern match failure in the P monad would
produce a user-visible parse error, but the error message would not be
helpful to the user
* due to the MFP migration strategy, we had to use CPP in Lexer.x,
and that created issues for #17750
Updates haddock submodule.
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