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Introduce GHC.Unit.* hierarchy for everything concerning units, packages
and modules.
Update Haddock submodule
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Over the years the unit management code has been modified a lot to keep
up with changes in Cabal (e.g. support for several library components in
the same package), to integrate BackPack, etc. I found it very hard to
understand as the terminology wasn't consistent, was referring to past
concepts, etc.
The terminology is now explained as clearly as I could in the Note
"About Units" and the code is refactored to reflect it.
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Many names were misleading: UnitId is not an Id but could be a virtual
unit (an indefinite one instantiated on the fly), IndefUnitId
constructor may contain a definite instantiated unit, etc.
* Rename IndefUnitId into InstantiatedUnit
* Rename IndefModule into InstantiatedModule
* Rename UnitId type into Unit
* Rename IndefiniteUnitId constructor into VirtUnit
* Rename DefiniteUnitId constructor into RealUnit
* Rename packageConfigId into mkUnit
* Rename getPackageDetails into unsafeGetUnitInfo
* Rename InstalledUnitId into UnitId
Remove references to misleading ComponentId: a ComponentId is just an
indefinite unit-id to be instantiated.
* Rename ComponentId into IndefUnitId
* Rename ComponentDetails into UnitPprInfo
* Fix display of UnitPprInfo with empty version: this is now used for
units dynamically generated by BackPack
Generalize several types (Module, Unit, etc.) so that they can be used
with different unit identifier types: UnitKey, UnitId, Unit, etc.
* GenModule: Module, InstantiatedModule and InstalledModule are now
instances of this type
* Generalize DefUnitId, IndefUnitId, Unit, InstantiatedUnit,
PackageDatabase
Replace BackPack fake "hole" UnitId by a proper HoleUnit constructor.
Add basic support for UnitKey. They should be used more in the future to
avoid mixing them up with UnitId as we do now.
Add many comments.
Update Haddock submodule
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This patch factorizes the duplicated code used in ghc-pkg and in GHC to
munge package paths/urls.
It also fixes haddock-html munging in GHC (allowed to be either a file
or a url) to mimic ghc-pkg behavior.
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Converting between UnitInfo stored in package databases and UnitInfo as
they are used in ghc-pkg and ghc was done in a very convoluted way (via
BinaryStringRep and DbUnitModuleRep type classes using fun deps, etc.).
It was difficult to understand and even more to modify (I wanted to
try to use a GADT for UnitId but fun deps got in the way).
The new code uses much more straightforward functions to convert between
the different representations. Much simpler.
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* Rename InstalledPackageInfo into GenericUnitInfo
The name InstalledPackageInfo is only kept for alleged backward
compatibility reason in Cabal. ghc-boot has its own stripped down copy
of this datatype but it doesn't need to keep the name. Internally we
already use type aliases (UnitInfo in GHC, PackageCacheFormat in
ghc-pkg).
* Rename UnitInfo fields: add "unit" prefix and fix misleading names
* Add comments on every UnitInfo field
* Rename SourcePackageId into PackageId
"Package" already indicates that it's a "source package". Installed
package components are called units.
Update Haddock submodule
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Update Haddock submodule
Metric Increase:
haddock.compiler
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* Remove `DynFlags` parameter from `isDynLinkName`: `isDynLinkName` used
to test the global `ExternalDynamicRefs` flag. Now we test it outside of
`isDynLinkName`
* Add new fields into `NCGConfig`: current unit id, sse/bmi versions,
externalDynamicRefs, etc.
* Replace many uses of `DynFlags` by `NCGConfig`
* Moved `BMI/SSE` datatypes into `GHC.Platform`
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* SysTools
* Parser
* GHC.Builtin
* GHC.Iface.Recomp
* Settings
Update Haddock submodule
Metric Decrease:
Naperian
parsing001
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As far as GHC is concerned, installed package components ("units") are
identified by an opaque ComponentId string provided by Cabal. But we
don't want to display it to users (as it contains a hash) so GHC queries
the database to retrieve some infos about the original source package
(name, version, component name).
This patch caches these infos in the ComponentId itself so that we don't
need to provide DynFlags (which contains installed package informations)
to print a ComponentId.
In the future we want GHC to support several independent package states
(e.g. for plugins and for target code), hence we need to avoid
implicitly querying a single global package state.
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Update Haddock submodule
Metric Increase:
haddock.compiler
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I wanted to fix the dangling comment in `isDllName` ("This is the cause
of #", #8696 is already mentioned earlier). I took the opportunity to
change the function name to better reflect what it does.
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Should make `member` queries faster and avoid messing up with missing
`nubSort`.
Metric Increase:
hie002
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* extract flags and ways into their own modules (with some renaming)
* remove one SOURCE import of GHC.Driver.Session from GHC.Driver.Phases
* when GHC uses dynamic linking (WayDyn), `interpWays` was only
reporting WayDyn even if the host was profiled (WayProf). Now it
returns both as expected (might fix #16803).
* `mkBuildTag :: [Way] -> String` wasn't reporting a canonical tag for
differently ordered lists. Now we sort and nub the list to fix this.
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submodule updates: nofib, haddock
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