summaryrefslogtreecommitdiff
path: root/compiler/main
Commit message (Collapse)AuthorAgeFilesLines
* Implement -XStaticValues.wip/static-pointersFacundo Domínguez2014-12-021-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Contains contributions from Alexander Vershilov and Mathieu Boespflug. As proposed in [1], this extension introduces a new syntactic form `static e`, where `e :: a` can be any closed expression. The static form produces a value of type `StaticPtr a`, which works as a reference that programs can "dereference" to get the value of `e` back. References are like `Ptr`s, except that they are stable across invocations of a program. In essence the extension collects the arguments of the static form into a global static pointer table. The expressions can be looked up by a fingerprint computed from the package, the module and a fresh name given to the expression. For more details we refer to the users guide section contained in the patch. The extension is a contribution to the Cloud Haskell ecosystem (distributed-process and related), and thus has the potential to foster Haskell as a programming language for distributed systems. The immediate improvement brought by the extension is the elimination of remote tables from Cloud Haskell applications. Such applications contain table fragments spread throughout multiple modules and packages. Eliminating these fragments saves the programmer the burden required to construct and assemble the global remote table, a verbose and error-prone process, even with the help of Template Haskell, that moreover pollutes the export lists of all modules. [1] Jeff Epstein, Andrew P. Black, and Simon Peyton-Jones. Towards Haskell in the cloud. SIGPLAN Not., 46(12):118–129, September 2011. ISSN 0362-1340.
* Generalize exposed-modules field in installed package databaseEdward Z. Yang2014-11-152-14/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Instead of recording exposed-modules and reexported-modules as seperate fields in the installed package database, this commit merges them into a single field (exposed-modules). The motivation for this change is in preparation for the inclusion of *signatures* into the installed package database, which may also be reexported. Merging the representation means that we can treat reexports uniformly, no matter if they're a normal module or a signature. This commit adds a stub for signatures, but that code isn't wired up to anything yet. Contains Cabal submodule update to accommodate these changes. Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> Test Plan: validate Reviewers: simonpj, duncan, austin Subscribers: thomie, carter, simonmar Differential Revision: https://phabricator.haskell.org/D421
* Partially revert 475dd93efaAustin Seipp2014-11-141-2/+1
| | | | | | | This introduces ./validate failures for Windows right now, so in the mean time let's just back this flag out as a default -Wall flag. Signed-off-by: Austin Seipp <austin@well-typed.com>
* Fix typo in panic messageDr. ERDI Gergo2014-11-131-1/+1
|
* Add `--fwarn-trustworthy-safe` to `-Wall`David Terei2014-11-121-1/+2
| | | | | Update submodule haskell2010, haskell98, hoop, hpc and stm to fix new warnings.
* Add in `-fwarn-trustworthy-safe` flag.David Terei2014-11-122-57/+106
| | | | | This warns when a module marked as `-XTrustworthy` could have been inferred as safe instead.
* Miscellaneous documentation for the Finder.Edward Z. Yang2014-11-071-2/+22
| | | | Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
* Warn for Safe Haskell when -XOverlappingInstances orDavid Terei2014-11-061-12/+31
| | | | -XIncoherentInstances turned on.
* Better error messages for new per-instance overlap flags and SafeDavid Terei2014-11-061-1/+9
| | | | Haskell.
* Update User's Guide, cleanup DynFlagsJan Stolarek2014-11-062-250/+295
|
* Remove -ddump-core-pipeline flagJan Stolarek2014-11-061-2/+0
|
* Remove -ddump-simpl-phases flagJan Stolarek2014-11-061-12/+3
|
* White space onlySimon Peyton Jones2014-11-041-1/+1
|
* Some refactoring around endPass and debug dumpingSimon Peyton Jones2014-11-043-40/+43
| | | | | I forget all the details, but I spent some time trying to understand the current setup, and tried to simplify it a bit
* Remove legacy support for -optdef flagsThomas Miedema2014-10-311-24/+4
| | | | | | | | | | | | | | Summary: -optdef flags were deprecated in or before 2008 Reviewers: austin Reviewed By: austin Subscribers: thomie, carter, simonmar Differential Revision: https://phabricator.haskell.org/D409 GHC Trac Issues: #2773
* Add __GLASGOW_HASKELL_TH__=YES/NO to CPP definitionsJoachim Breitner2014-10-291-0/+6
| | | | | | | | | | | | | | Test Plan: None really. Reviewers: austin Reviewed By: austin Subscribers: thomie, carter, simonmar Differential Revision: https://phabricator.haskell.org/D386 GHC Trac Issues: #9734
* Typo in commentGabor Greif2014-10-281-2/+2
|
* Un-wire `Integer` type (re #9714)Herbert Valerio Riedel2014-10-271-17/+26
| | | | | | | | | | | | | | Integer is currently a wired-in type for integer-gmp. This requires replicating its inner structure in `TysWiredIn`, which makes it much harder to change Integer to a more complex representation (as e.g. needed for implementing #9281) This commit stops `Integer` being a wired-in type, and makes it known-key type instead, thereby simplifying code notably. Reviewed By: austin Differential Revision: https://phabricator.haskell.org/D351
* Implementation of hsig (module signatures), per #9252Edward Z. Yang2014-10-248-58/+213
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Module signatures, like hs-boot files, are Haskell modules which omit value definitions and contain only signatures. This patchset implements one particular aspect of module signature, namely compiling them against a concrete implementation. It works like this: when we compile an hsig file, we must be told (via the -sig-of flag) what module this signature is implementing. The signature is compiled into an interface file which reexports precisely the entities mentioned in the signature file. We also verify that the interface is compatible with the implementation. This feature is useful in a few situations: 1. Like explicit import lists, signatures can be used to reduce sensitivity to upstream changes. However, a signature can be defined once and then reused by many modules. 2. Signatures can be used to quickly check if a new upstream version is compatible, by typechecking just the signatures and not the actual modules. 3. A signature can be used to mediate separate modular development, where the signature is used as a placeholder for functionality which is loaded in later. (This is only half useful at the moment, since typechecking against signatures without implementations is not implemented in this patchset.) Unlike hs-boot files, hsig files impose no performance overhead. This patchset punts on the type class instances (and type families) problem: instances simply leak from the implementation to the signature. You can explicitly specify what instances you expect to have, and those will be checked, but you may get more instances than you asked for. Our eventual plan is to allow hiding instances, but to consider all transitively reachable instances when considering overlap and soundness. ToDo: signature merging: when a module is provided by multiple signatures for the same base implementation, we should not consider this ambiguous. ToDo: at the moment, signatures do not constitute use-sites, so if you write a signature for a deprecated function, you won't get a warning when you compile the signature. Future work: The ability to feed in shaping information so that we can take advantage of more type equalities than might be immediately evident. Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> Test Plan: validate and new tests Reviewers: simonpj, simonmar, hvr, austin Subscribers: simonmar, relrod, ezyang, carter, goldfire Differential Revision: https://phabricator.haskell.org/D130 GHC Trac Issues: #9252
* Enabled warn on tabs by default (fixes #9230)Mateusz Lenik2014-10-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | Summary: This revision enables -fwarn-tabs by default and add a suppression flag, so that GHC compilation won't fail when some files contain tab characters. Test Plan: Additional test case, T9230, was added to cover that change. Reviewers: austin Reviewed By: austin Subscribers: simonmar, ezyang, carter, thomie, mlen Differential Revision: https://phabricator.haskell.org/D255 GHC Trac Issues: #9230 Conflicts: testsuite/driver/testlib.py
* Revert "Rename _closure to _static_closure, apply naming consistently."Edward Z. Yang2014-10-201-2/+2
| | | | | | | This reverts commit 35672072b4091d6f0031417bc160c568f22d0469. Conflicts: compiler/main/DriverPipeline.hs
* Indentation and non-semantic changes only.Edward Z. Yang2014-10-191-20/+20
| | | | | | | | | | | | | | | Summary: Get these lines fitting in 80 columns, and replace ptext (sLit ...) with text Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> Test Plan: validate Reviewers: simonmar, austin Subscribers: thomie, carter, ezyang, simonmar Differential Revision: https://phabricator.haskell.org/D342
* Implement `MIN_VERSION_GLASGOW_HASKELL()` macroHerbert Valerio Riedel2014-10-051-6/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This exposes the `cProjectPatchLevel{1,2}` value at the CPP level to allow it to be used in CPP conditionals. Concretely, GHC 7.10.2.20150623 would result in #define __GLASGOW_HASKELL__ 710 #define __GLASGOW_HASKELL_PATCHLEVEL1__ 2 #define __GLASGOW_HASKELL_PATCHLEVEL2__ 20150623 while GHC 7.10.3 results in #define __GLASGOW_HASKELL__ 710 #define __GLASGOW_HASKELL_PATCHLEVEL1__ 3 and finally GHC 7.9.20141009 results in #define __GLASGOW_HASKELL__ 709 #define __GLASGOW_HASKELL_PATCHLEVEL1__ 20141009 As it's error-prone to properly express CPP conditionals for testing GHC multi-component versions, a new macro `MIN_VERSION_GLASGOW_HASKELL()` is provided (also via the new CPP include file `ghcversion.h`) Finally, in order to make it easier to define the new CPP macro `MIN_VERSION_GLASGOW_HASKELL()`, a new default-included `include/ghcversion.h` is used for the new CPP definitions. Reviewed By: ekmett, austin, #ghc Differential Revision: https://phabricator.haskell.org/D66
* Rename _closure to _static_closure, apply naming consistently.Edward Z. Yang2014-10-011-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: In preparation for indirecting all references to closures, we rename _closure to _static_closure to ensure any old code will get an undefined symbol error. In order to reference a closure foobar_closure (which is now undefined), you should instead use STATIC_CLOSURE(foobar). For convenience, a number of these old identifiers are macro'd. Across C-- and C (Windows and otherwise), there were differing conventions on whether or not foobar_closure or &foobar_closure was the address of the closure. Now, all foobar_closure references are addresses, and no & is necessary. CHARLIKE/INTLIKE were not changed, simply alpha-renamed. Part of remove HEAP_ALLOCED patch set (#8199) Depends on D265 Signed-off-by: Edward Z. Yang <ezyang@mit.edu> Test Plan: validate Reviewers: simonmar, austin Subscribers: simonmar, ezyang, carter, thomie Differential Revision: https://phabricator.haskell.org/D267 GHC Trac Issues: #8199
* Don't re-export `Alternative(..)` from Control.Monad (re #9586)Herbert Valerio Riedel2014-09-261-4/+0
| | | | | | | | | | | | | | | | | This was done in d94de87252d0fe2ae97341d186b03a2fbe136b04 to avoid orphans but since a94dc4c3067c6a0925e2e39f35ef0930771535f1 moved `Alternative` into GHC.Base, this isn't needed anymore. This is important, as otherwise this would require a non-neglectable amount of `Control.Monad hiding ((<|>), empty)` imports in user code. The Haddock submodule is updated as well Test Plan: partial local ./validate --fast, let Harbormaster doublecheck it Reviewed By: ekmett, austin Differential Revision: https://phabricator.haskell.org/D248
* `M-x delete-trailing-whitespace` & `M-x untabify`Herbert Valerio Riedel2014-09-241-1/+1
|
* Update Cabal submodule & ghc-pkg to use new module re-export typesEdward Z. Yang2014-09-241-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: The main change is that Cabal changed the representation of module re-exports to distinguish reexports in source .cabal files versus re-exports in installed package registraion files. Cabal now also does the resolution of re-exports to specific installed packages itself, so ghc-pkg no longer has to do this. This is a cleaner design overall because re-export resolution can fail so it is better to do it during package configuration rather than package registration. It also simplifies the re-export representation that ghc-pkg has to use. Add extra ghc-pkg sanity check for module re-exports and duplicates For re-exports, check that the defining package exists and that it exposes the defining module (or for self-rexport exposed or hidden modules). Also check that the defining package is actually a direct or indirect dependency of the package doing the re-exporting. Also add a check for duplicate modules in a package, including re-exported modules. Test Plan: So far the sanity checks are totally untested. Should add some test case to make sure the sanity checks do catch things correctly, and don't ban legal things. Reviewers: austin, duncan Subscribers: angerman, simonmar, ezyang, carter Differential Revision: https://phabricator.haskell.org/D183 GHC Trac Issues:
* Export `Monoid(..)`/`Foldable(..)`/`Traversable(..)` from PreludeHerbert Valerio Riedel2014-09-211-0/+2
| | | | | | | | | | | | | | | This finally exposes also the methods of these 3 classes in the Prelude in order to allow to define basic class instances w/o needing imports. This almost completes the primary goal of #9586 NOTE: `fold`, `foldl'`, `foldr'`, and `toList` are not exposed yet, as they require upstream fixes for at least `containers` and `bytestring`, and are not required for defining basic instances. Reviewed By: ekmett, austin Differential Revision: https://phabricator.haskell.org/D236
* Increase -fcontext-stack=N default to 100Simon Peyton Jones2014-09-191-1/+2
| | | | This addresses Trac #5395
* Add -fwarn-context-quantification (#4426)Krzysztof Gogolewski2014-09-182-2/+5
| | | | | | | | | | | | | | | | | | | | | | Summary: This warning (enabled by default) reports places where a context implicitly binds a type variable, for example type T a = {-forall m.-} Monad m => a -> m a Also update Haddock submodule. Test Plan: validate Reviewers: hvr, goldfire, simonpj, austin Reviewed By: austin Subscribers: simonmar, ezyang, carter Differential Revision: https://phabricator.haskell.org/D211 GHC Trac Issues: #4426
* Don't offer hidden modules for autocomplete.Edward Z. Yang2014-09-151-1/+2
| | | | | | | It was annoying to test GHCi directly, so I added a ghc-api unit test of the function instead. Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
* Make Applicative a superclass of MonadAustin Seipp2014-09-096-15/+20
| | | | | | | | | | | | | | | | | | | | | Summary: This includes pretty much all the changes needed to make `Applicative` a superclass of `Monad` finally. There's mostly reshuffling in the interests of avoid orphans and boot files, but luckily we can resolve all of them, pretty much. The only catch was that Alternative/MonadPlus also had to go into Prelude to avoid this. As a result, we must update the hsc2hs and haddock submodules. Signed-off-by: Austin Seipp <austin@well-typed.com> Test Plan: Build things, they might not explode horribly. Reviewers: hvr, simonmar Subscribers: simonmar Differential Revision: https://phabricator.haskell.org/D13
* systools: fix gcc version detecton on non-english localeSergei Trofimovich2014-09-021-4/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: ghc runs 'gcc -v' to check if we run under vanilla gcc or disaguised clang by checking for string "gcc version <something>" But this check does not always work as gcc has that string localized via gettext mechanism: (some gcc's locale strings) be.po-msgstr "версія gcc %s\n" da.po-msgstr "GCC version %s\n" de.po-msgstr "gcc-Version %s %s\n" el.po-msgstr "έκδοση gcc %s\n" ... To ping gcc to English locale we now override environment variable with 'LANGUAGE=en' value. Fixes Issue #8825 Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Test Plan: validate Reviewers: austin Reviewed By: austin Subscribers: simonmar, ezyang, carter Differential Revision: https://phabricator.haskell.org/D185 GHC Trac Issues: #8825
* `M-x delete-trailing-whitespace` & `M-x untabify`...Herbert Valerio Riedel2014-08-311-2/+2
| | | | | | ...some files more or less recently touched by me [ci skip]
* Include pattern synonyms as AConLikes in the type environment,Dr. ERDI Gergo2014-08-301-6/+9
| | | | even for simplified/boot ModDetails (fixes #9417)
* Fix a few minor issues spotted in code reviewDuncan Coutts2014-08-292-2/+3
|
* Address a number of Edward's code review commentsDuncan Coutts2014-08-291-0/+1
| | | | Some others addressed as part of other recent patches.
* Switch the package id types to use FastString (rather than String)Duncan Coutts2014-08-292-38/+34
| | | | | | | | | | | The conversions should now be correct w.r.t Unicode. Also move a couple instances to avoid orphan instances. Strictly speaking there's no need for these types to use FastString as they do not need the unique feature. They could just use some other compact string type, but ghc's internal utils don't have much support for such a type, so we just use FastString.
* Add a ghc -show-packages mode to display ghc's view of the package envDuncan Coutts2014-08-292-24/+44
| | | | | | | | | You can use ghc -show-packages, in addition to any -package -package-conf -hide-package, etc flags and see just what ghc's package info looks like. The format is much like ghc-pkg show. Like the existing verbose tracing, but a specific mode. Re-introduce pretty printed package info (Cabal handled this previously).
* Remove a TODO that is now doneDuncan Coutts2014-08-291-4/+0
|
* Fix long lines and trailing whitespaceDuncan Coutts2014-08-293-8/+13
| | | | in the previous patches in this series
* Use ghc-local types for packages, rather than Cabal typesDuncan Coutts2014-08-293-94/+123
| | | | | | | | Also start using the new package db file format properly, by using the ghc-specific section. This is the main patch in the series for removing the compiler's dep on the Cabal lib.
* Introduce new file format for the package database binary cacheDuncan Coutts2014-08-291-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | The purpose of the new format is to make it possible for the compiler to not depend on the Cabal library. The new cache file format contains more or less the same information duplicated in two different sections using different representations. One section is basically the same as what the package db contains now, a list of packages using the types defined in the Cabal library. This section is read back by ghc-pkg, and used for things like ghc-pkg dump which have to produce output using the Cabal InstalledPackageInfo text representation. The other section is a ghc-local type which contains a subset of the information from the Cabal InstalledPackageInfo -- just the bits that the compiler cares about. The trick is that the compiler can read this second section without needing to know the representation (or types) of the first part. The ghc-pkg tool knows about both representations and writes both. This patch introduces the new cache file format but does not yet use it properly. More patches to follow. (As of this patch, the compiler reads the part intended for ghc-pkg so it still depends on Cabal and the ghc-local package type is not yet fully defined.)
* Drop support for single-file style package databasesDuncan Coutts2014-08-291-11/+7
| | | | | | | | | | | | | | | | Historically the package db format was a single text file in Read/Show format containing [InstalledPackageInfo]. For several years now the default format has been a directory with one file per package, plus a binary cache. The old format cannot be supported under the new scheme where the compiler will not depend on the Cabal library (because it will not have access to the InstalledPackageInfo type) so we must drop support. It would still technically be possible to support a single text file style db (but containing a different type), but there does not seem to be any compelling reason to do so. (Part of preparitory work for removing the compiler's dep on Cabal)
* Define mapUnionVarSet, and use itSimon Peyton Jones2014-08-292-11/+8
| | | | Call sites are much easier to understand than before
* Improve trimming of auto-rulesSimon Peyton Jones2014-08-291-105/+151
| | | | | | | | | | | | | | I hadn't got the new function trimAutoRules quite right, so we had a left-over rule which mentioned a local variable whose binding had been discarded. (Result: crash when compiling Haddock.) This patch merges trimAutoRules into an expanded version of findExternalRules, gets it right, and adds lots of comments. See Note [Finding external rules]. And indeed in one regression test we get to trim off more rules (and hence code) than before.
* Temporary fix to the crashSimon Peyton Jones2014-08-281-2/+2
| | | | | | | | ghc-stage2: panic! (the 'impossible' happened) (GHC version 7.9.20140828 for x86_64-unknown-linux): nameModule $w$smiddle_sfx6 make[1]: *** [utils/haddock/dist/build/Haddock/Backends/Xhtml.dyn_o] Error 1
* Remove dead lookup_dfun_id (merge-o)Simon Peyton Jones2014-08-281-6/+0
|
* Make tidyProgram discard speculative specialisation rulesSimon Peyton Jones2014-08-281-4/+71
| | | | | | | The new function TidyPgm.trimAutoRules discards bindings and rules that were useful, but now have served their purpose. See Note [Trimming auto rules] in TidyPgm
* Add -fspecialise-aggressivelySimon Peyton Jones2014-08-281-0/+2
| | | | | | | | | | This flag specialises any imported overloaded function that has an unfolding, whether or not it was marked INLINEABLE. We get a lot of orphan SPEC rules as a result, but that doesn't matter provided we don't treat orphan auto-generated rules as causing the module itself to be an orphan module. See Note [Orphans and auto-generated rules] in MkIface.
View Lorry Controller Status