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* Module hierarchy: Renamer (cf #13009)Sylvain Henry2020-01-081-214/+0
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* Module hierarchy: Iface (cf #13009)Sylvain Henry2020-01-061-1/+1
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* Refactor iface file generation:Ömer Sinan Ağacan2019-09-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit refactors interface file generation to allow information from the later passed (NCG, STG) to be stored in interface files. We achieve this by splitting interface file generation into two parts: * Partial interfaces, built based on the result of the core pipeline * A fully instantiated interface, which also contains the final fingerprints and can optionally contain information produced by the backend. This change is required by !1304 and !1530. -dynamic-too handling is refactored too: previously when generating code we'd branch on -dynamic-too *before* code generation, but now we do it after. (Original code written by @AndreasK in !1530) Performance ~~~~~~~~~~~ Before this patch interface files where created and immediately flushed to disk which made space leaks impossible. With this change we instead use NFData to force all iface related data structures to avoid space leaks. In the process of refactoring it was discovered that the code in the ToIface Module allocated a lot of thunks which were immediately forced when writing/forcing the interface file. So we made this module more strict to avoid creating many of those thunks. Bottom line is that allocations go down by about ~0.1% compared to master. Residency is not meaningfully different after this patch. Runtime was not benchmarked. Co-Authored-By: Andreas Klebinger <klebinger.andreas@gmx.at> Co-Authored-By: Ömer Sinan Ağacan <omer@well-typed.com>
* Module hierarchy: Hs (#13009)Sylvain Henry2019-09-201-1/+1
| | | | | | | Add GHC.Hs module hierarchy replacing hsSyn. Metric Increase: haddock.compiler
* Use an empty data type in TTG extension constructors (#15247)Ryan Scott2019-07-091-1/+1
| | | | | | | | | | | | | | | To avoid having to `panic` any time a TTG extension constructor is consumed, this MR introduces an uninhabited 'NoExtCon' type and uses that in every extension constructor's type family instance where it is appropriate. This also introduces a 'noExtCon' function which eliminates a 'NoExtCon', much like 'Data.Void.absurd' eliminates a 'Void'. I also renamed the existing `NoExt` type to `NoExtField` to better distinguish it from `NoExtCon`. Unsurprisingly, there is a lot of code churn resulting from this. Bumps the Haddock submodule. Fixes #15247.
* Update Trac ticket URLs to point to GitLabRyan Scott2019-03-151-2/+2
| | | | | This moves all URL references to Trac tickets to their corresponding GitLab counterparts.
* [TTG: Handling Source Locations] Foundation and PatShayan-Najd2018-11-241-6/+8
| | | | | | | | | | | | | | | | | | This patch removes the ping-pong style from HsPat (only, for now), using the plan laid out at https://ghc.haskell.org/trac/ghc/wiki/ImplementingTreesThatGrow/HandlingSourceLocations (solution A). - the class `HasSrcSpan`, and its functions (e.g., `cL` and `dL`), are introduced - some instances of `HasSrcSpan` are introduced - some constructors `L` are replaced with `cL` - some patterns `L` are replaced with `dL->L` view pattern - some type annotation are necessarily updated (e.g., `Pat p` --> `Pat (GhcPass p)`) Phab diff: D5036 Trac Issues #15495 Updates haddock submodule
* Restore Trees That Grow reverted commitsAlan Zimmerman2018-04-091-2/+3
| | | | | | | | | | | | | | | | | | The following commits were reverted prior to the release of GHC 8.4.1, because the time to derive Data instances was too long [1]. 438dd1cbba13d35f3452b4dcef3f94ce9a216905 Phab:D4147 e3ec2e7ae94524ebd111963faf34b84d942265b4 Phab:D4177 47ad6578ea460999b53eb4293c3a3b3017a56d65 Phab:D4186 The work is continuing, as the minimum bootstrap compiler is now GHC 8.2.1, and this allows Plan B[2] for instances to be used. This will land in a following commit. Updates Haddock submodule [1] https://ghc.haskell.org/trac/ghc/wiki/ImplementingTreesThatGrow/Instances [2] https://ghc.haskell.org/trac/ghc/wiki/ImplementingTreesThatGrow/Instances#PLANB
* Revert "trees that grow" workBen Gamari2017-11-211-3/+2
| | | | | | | | | | | | | | As documented in #14490, the Data instances currently blow up compilation time by too much to stomach. Alan will continue working on this in a branch and we will perhaps merge to 8.2 before 8.2.1 to avoid having to perform painful cherry-picks in 8.2 minor releases. Reverts haddock submodule. This reverts commit 47ad6578ea460999b53eb4293c3a3b3017a56d65. This reverts commit e3ec2e7ae94524ebd111963faf34b84d942265b4. This reverts commit 438dd1cbba13d35f3452b4dcef3f94ce9a216905. This reverts commit 0ff152c9e633accca48815e26e59d1af1fe44ceb.
* WIP on Doing a combined Step 1 and 3 for Trees That GrowAlan Zimmerman2017-11-081-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | See https://ghc.haskell.org/trac/ghc/wiki/ImplementingTreesThatGrow Trees that grow extension points are added for - ValBinds - HsPat - HsLit - HsOverLit - HsType - HsTyVarBndr - HsAppType - FieldOcc - AmbiguousFieldOcc Updates haddock submodule Test Plan: ./validate Reviewers: shayan-najd, simonpj, austin, goldfire, bgamari Subscribers: goldfire, rwbarton, thomie, mpickering Differential Revision: https://phabricator.haskell.org/D4147
* Revert "WIP on combining Step 1 and 3 of Trees That Grow"Ben Gamari2017-11-071-3/+2
| | | | | | | | This reverts commit 0ff152c9e633accca48815e26e59d1af1fe44ceb. Sadly this broke when bootstrapping with 8.0.2 due to #14396. Reverts haddock submodule.
* WIP on combining Step 1 and 3 of Trees That GrowAlan Zimmerman2017-11-071-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | See https://ghc.haskell.org/trac/ghc/wiki/ImplementingTreesThatGrow Trees that grow extension points are added for - ValBinds - HsPat - HsLit - HsOverLit - HsType - HsTyVarBndr - HsAppType - FieldOcc - AmbiguousFieldOcc Updates haddock submodule Test Plan: ./validate Reviewers: shayan-najd, simonpj, austin, goldfire, bgamari Subscribers: goldfire, rwbarton, thomie, mpickering Differential Revision: https://phabricator.haskell.org/D4147
* compiler: introduce custom "GhcPrelude" PreludeHerbert Valerio Riedel2017-09-191-0/+2
| | | | | | | | | | | | | | | | | | This switches the compiler/ component to get compiled with -XNoImplicitPrelude and a `import GhcPrelude` is inserted in all modules. This is motivated by the upcoming "Prelude" re-export of `Semigroup((<>))` which would cause lots of name clashes in every modulewhich imports also `Outputable` Reviewers: austin, goldfire, bgamari, alanz, simonmar Reviewed By: bgamari Subscribers: goldfire, rwbarton, thomie, mpickering, bgamari Differential Revision: https://phabricator.haskell.org/D3989
* Udate hsSyn AST to use Trees that GrowAlan Zimmerman2017-06-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: See https://ghc.haskell.org/trac/ghc/wiki/ImplementingTreesThatGrow This commit prepares the ground for a full extensible AST, by replacing the type parameter for the hsSyn data types with a set of indices into type families, data GhcPs -- ^ Index for GHC parser output data GhcRn -- ^ Index for GHC renamer output data GhcTc -- ^ Index for GHC typechecker output These are now used instead of `RdrName`, `Name` and `Id`/`TcId`/`Var` Where the original name type is required in a polymorphic context, this is accessible via the IdP type family, defined as type family IdP p type instance IdP GhcPs = RdrName type instance IdP GhcRn = Name type instance IdP GhcTc = Id These types are declared in the new 'hsSyn/HsExtension.hs' module. To gain a better understanding of the extension mechanism, it has been applied to `HsLit` only, also replacing the `SourceText` fields in them with extension types. To preserve extension generality, a type class is introduced to capture the `SourceText` interface, which must be honoured by all of the extension points which originally had a `SourceText`. The class is defined as class HasSourceText a where -- Provide setters to mimic existing constructors noSourceText :: a sourceText :: String -> a setSourceText :: SourceText -> a getSourceText :: a -> SourceText And the constraint is captured in `SourceTextX`, which is a constraint type listing all the extension points that make use of the class. Updating Haddock submodule to match. Test Plan: ./validate Reviewers: simonpj, shayan-najd, goldfire, austin, bgamari Subscribers: rwbarton, thomie, mpickering Differential Revision: https://phabricator.haskell.org/D3609
* Split up RnEnv into 4 modules, RnUnbound, RnUtils and RnFixityMatthew Pickering2017-04-121-0/+209
Summary: RnEnv contains functions which convertn RdrNames into Names. RnUnbound contains helper functions for reporting and creating unbound variables. RnFixity contains code which maintains the fixity environent whilst renaming. RnUtils contains the other stuff in RnEnv. Reviewers: austin, goldfire, bgamari Subscribers: goldfire, rwbarton, thomie, snowleopard Differential Revision: https://phabricator.haskell.org/D3436