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* Split GHC.Driver.TypesSylvain Henry2020-10-291-858/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I was working on making DynFlags stateless (#17957), especially by storing loaded plugins into HscEnv instead of DynFlags. It turned out to be complicated because HscEnv is in GHC.Driver.Types but LoadedPlugin isn't: it is in GHC.Driver.Plugins which depends on GHC.Driver.Types. I didn't feel like introducing yet another hs-boot file to break the loop. Additionally I remember that while we introduced the module hierarchy (#13009) we talked about splitting GHC.Driver.Types because it contained various unrelated types and functions, but we never executed. I didn't feel like making GHC.Driver.Types bigger with more unrelated Plugins related types, so finally I bit the bullet and split GHC.Driver.Types. As a consequence this patch moves a lot of things. I've tried to put them into appropriate modules but nothing is set in stone. Several other things moved to avoid loops. * Removed Binary instances from GHC.Utils.Binary for random compiler things * Moved Typeable Binary instances into GHC.Utils.Binary.Typeable: they import a lot of things that users of GHC.Utils.Binary don't want to depend on. * put everything related to Units/Modules under GHC.Unit: GHC.Unit.Finder, GHC.Unit.Module.{ModGuts,ModIface,Deps,etc.} * Created several modules under GHC.Types: GHC.Types.Fixity, SourceText, etc. * Split GHC.Utils.Error (into GHC.Types.Error) * Finally removed GHC.Driver.Types Note that this patch doesn't put loaded plugins into HscEnv. It's left for another patch. Bump haddock submodule
* Initial ShortText code and conversion of package db codeWander Hillen2020-10-131-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | Metric Decrease: Naperian T10421 T10421a T10547 T12150 T12234 T12425 T13035 T18140 T18304 T5837 T6048 T13253-spj T18282 T18223 T3064 T9961 Metric Increase T13701 HFSKJH
* Cache HomeUnit in HscEnv (#17957)Sylvain Henry2020-10-091-9/+8
| | | | | Instead of recreating the HomeUnit from the DynFlags every time we need it, we store it in the HscEnv.
* Don't import GHC.Unit to reduce the number of dependenciesSylvain Henry2020-10-011-1/+4
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* DynFlags: add UnfoldingOpts and SimpleOptsSylvain Henry2020-09-091-0/+1
| | | | | Milestone: after this patch, we only use 'unsafeGlobalDynFlags' for the state hack and for debug in Outputable.
* Refactor UnitId pretty-printingSylvain Henry2020-08-261-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we pretty-print a UnitId for the user, we try to map it back to its origin package name, version and component to print "package-version:component" instead of some hash. The UnitId type doesn't carry these information, so we have to look into a UnitState to find them. This is why the Outputable instance of UnitId used `sdocWithDynFlags` in order to access the `unitState` field of DynFlags. This is wrong for several reasons: 1. The DynFlags are accessed when the message is printed, not when it is generated. So we could imagine that the unitState may have changed in-between. Especially if we want to allow unit unloading. 2. We want GHC to support several independent sessions at once, hence several UnitState. The current approach supposes there is a unique UnitState as a UnitId doesn't indicate which UnitState to use. See the Note [Pretty-printing UnitId] in GHC.Unit for the new approach implemented by this patch. One step closer to remove `sdocDynFlags` field from `SDocContext` (#10143). Fix #18124. Also fix some Backpack code to use SDoc instead of String.
* Add HomeUnit typeSylvain Henry2020-08-131-25/+26
| | | | | | | | | | | | | | | | | | | | | | | Since Backpack the "home unit" is much more involved than what it was before (just an identifier obtained with `-this-unit-id`). Now it is used in conjunction with `-component-id` and `-instantiated-with` to configure module instantiations and to detect if we are type-checking an indefinite unit or compiling a definite one. This patch introduces a new HomeUnit datatype which is much easier to understand. Moreover to make GHC support several packages in the same instances, we will need to handle several HomeUnits so having a dedicated (documented) type is helpful. Finally in #14335 we will also need to handle the case where we have no HomeUnit at all because we are only loading existing interfaces for plugins which live in a different space compared to units used to produce target code. Several functions will have to be refactored to accept "Maybe HomeUnit" parameters instead of implicitly querying the HomeUnit fields in DynFlags. Having a dedicated type will make this easier. Bump haddock submodule
* DynFlags: disentangle OutputableSylvain Henry2020-08-121-0/+1
| | | | | | | | | - put panic related functions into GHC.Utils.Panic - put trace related functions using DynFlags in GHC.Driver.Ppr One step closer making Outputable fully independent of DynFlags. Bump haddock submodule
* Rename GHC.Driver.Ways into GHC.Platform.WaysSylvain Henry2020-07-251-1/+1
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* DynFlags: don't store buildTagSylvain Henry2020-06-271-3/+4
| | | | | | | | | | | | `DynFlags.buildTag` was a field created from the set of Ways in `DynFlags.ways`. It had to be kept in sync with `DynFlags.ways` which was fragile. We want to avoid global state like this (#17957). Moreover in #14335 we also want to support loading units with different ways: target units would still use `DynFlags.ways` but plugins would use `GHC.Driver.Ways.hostFullWays`. To avoid having to deal both with build tag and with ways, we recompute the buildTag on-the-fly (should be pretty cheap) and we remove `DynFlags.buildTag` field.
* Rename Package into Unit (2)Sylvain Henry2020-06-131-3/+3
| | | | | | | * rename PackageState into UnitState * rename findWiredInPackages into findWiredInUnits * rename lookupModuleInAll[Packages,Units] * etc.
* Rename Package into UnitSylvain Henry2020-06-131-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | The terminology changed over time and now package databases contain "units" (there can be several units compiled from a single Cabal package: one per-component, one for each option set, one per instantiation, etc.). We should try to be consistent internally and use "units": that's what this renaming does. Maybe one day we'll fix the UI too (e.g. replace -package-id with -unit-id, we already have -this-unit-id and ghc-pkg has -unit-id...) but it's not done in this patch. * rename getPkgFrameworkOpts into getUnitFrameworkOpts * rename UnitInfoMap into ClosureUnitInfoMap * rename InstalledPackageIndex into UnitInfoMap * rename UnusablePackages into UnusableUnits * rename PackagePrecedenceIndex into UnitPrecedenceMap * rename PackageDatabase into UnitDatabase * rename pkgDatabase into unitDatabases * rename pkgState into unitState * rename initPackages into initUnits * rename renamePackage into renameUnitInfo * rename UnusablePackageReason into UnusableUnitReason * rename getPackage* into getUnit* * etc.
* Enhance UnitId useSylvain Henry2020-06-131-1/+1
| | | | | | | | * use UnitId instead of String to identify wired-in units * use UnitId instead of Unit in the backend (Unit are only use by Backpack to produce type-checked interfaces, not real code) * rename lookup functions for consistency * documentation
* Add allowVirtualUnits field in PackageStateSylvain Henry2020-06-131-6/+10
| | | | | | | | | | Instead of always querying DynFlags to know whether we are allowed to use virtual units (i.e. instantiated on-the-fly, cf Note [About units] in GHC.Unit), we store it once for all in `PackageState.allowVirtualUnits`. This avoids using DynFlags too much (cf #17957) and is preliminary work for #14335.
* Refactor homeUnitSylvain Henry2020-06-131-7/+7
| | | | | * rename thisPackage into homeUnit * document and refactor several Backpack things
* Clarify leaf module names for new module hierarchyTakenobu Tani2020-06-101-1/+1
| | | | | | | | | | | | | | | | | | | | | This updates comments only. This patch replaces leaf module names according to new module hierarchy [1][2] as followings: * Expand leaf names to easily find the module path: for instance, `Id.hs` to `GHC.Types.Id`. * Modify leaf names according to new module hierarchy: for instance, `Convert.hs` to `GHC.ThToHs`. * Fix typo: for instance, `GHC.Core.TyCo.Rep.hs` to `GHC.Core.TyCo.Rep` See also !3375 [1]: https://gitlab.haskell.org/ghc/ghc/-/wikis/Make-GHC-codebase-more-modular [2]: https://gitlab.haskell.org/ghc/ghc/issues/13009
* Remove references to -package-keySylvain Henry2020-05-051-1/+1
| | | | | | | | * remove references to `-package-key` which has been removed in 2016 (240ddd7c39536776e955e881d709bbb039b48513) * remove support for `-this-package-key` which has been deprecated at the same time
* Unit: split and rename modulesSylvain Henry2020-04-301-2/+1
| | | | | | | Introduce GHC.Unit.* hierarchy for everything concerning units, packages and modules. Update Haddock submodule
* Refactoring unit management codeSylvain Henry2020-04-301-29/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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. ------------------- 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
* Refactor UnitInfoSylvain Henry2020-04-301-6/+6
| | | | | | | | | | | | | | | | | | | | | * 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
* Modules: Utils and Data (#13009)Sylvain Henry2020-04-261-5/+5
| | | | | | | Update Haddock submodule Metric Increase: haddock.compiler
* Modules (#13009)Sylvain Henry2020-04-181-1/+1
| | | | | | | | | | | | | | * SysTools * Parser * GHC.Builtin * GHC.Iface.Recomp * Settings Update Haddock submodule Metric Decrease: Naperian parsing001
* Store ComponentId detailsSylvain Henry2020-03-291-2/+4
| | | | | | | | | | | | | | | | 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.
* Modules: Types (#13009)Sylvain Henry2020-03-291-1/+1
| | | | | | | Update Haddock submodule Metric Increase: haddock.compiler
* Modules: Driver (#13009)Sylvain Henry2020-02-211-0/+844
submodule updates: nofib, haddock