New patches: [Perform case-insensitive matching of path components in getBaseDir on Windows (Fixes bug 2743) Neil Mitchell **20081105134315] { hunk ./compiler/main/SysTools.lhs 847 - (d, ghc_exe) | map toLower ghc_exe == "ghc.exe" -> + (d, ghc_exe) | lower ghc_exe == "ghc.exe" -> hunk ./compiler/main/SysTools.lhs 850 - (d', "bin") -> takeDirectory d' + (d', bin) | lower bin == "bin" -> takeDirectory d' hunk ./compiler/main/SysTools.lhs 852 - (d', x) | "-inplace" `isSuffixOf` x -> + (d', x) | "-inplace" `isSuffixOf` lower x -> hunk ./compiler/main/SysTools.lhs 857 + lower = map toLower } Context: [bugfix: don't ingore the return value from rts_evalIO() Simon Marlow **20081104142147] [Document the new SPARKS statistic, and xref from the parallelism section Simon Marlow **20081024120236] [Move the freeing of Capabilities later in the shutdown sequence Simon Marlow **20081024104301 Fixes a bug whereby the Capability has been freed but other Capabilities are still trying to steal sparks from its pool. ] [Pad Capabilities and Tasks to 64 bytes Simon Marlow **20081023080749 This is just good practice to avoid placing two structures heavily accessed by different CPUs on the same cache line ] [Fix desugaring of record update (fixes Trac #2735) simonpj@microsoft.com**20081103110819] [Refuse to register packages with unversioned dependencies; trac #1837 Ian Lynagh **20081031181746] [We now require GHC 6.6 to build the HEAD (and thus 6.12) Ian Lynagh **20081031171506] [:set prompt now understand Haskell String syntax; trace #2652 Ian Lynagh **20081031145227] [Comments only simonpj@microsoft.com**20081031140236] [Quickfix for warning. Thomas Schilling **20081031113125] [Export typeclasses for accessing compiler results. Thomas Schilling **20081028182310 MERGE TO 6.10. ] [Minor refactoring. Thomas Schilling **20081028182202] [Include record fields in tags. Thomas Schilling **20081028180538] [Fix imports simonpj@microsoft.com**20081031092306] [Improve error reporting for non-rigid GADT matches simonpj@microsoft.com**20081030143947 Following suggestions from users, this patch improves the error message when a GADT match needs a rigid type: tcfail172.hs:19:10: GADT pattern match in non-rigid context for `Nil' - Solution: add a type signature + Probable solution: add a type signature for `is_normal' In the pattern: Nil In the definition of `is_normal': is_normal Nil = True Now GHC tries to tell you what to give a type signature *for*. Thanks to Daniel Gorin and others for the suggestions. ] [Add (a) CoreM monad, (b) new Annotations feature simonpj@microsoft.com**20081030125108 This patch, written by Max Bolingbroke, does two things 1. It adds a new CoreM monad (defined in simplCore/CoreMonad), which is used as the top-level monad for all the Core-to-Core transformations (starting at SimplCore). It supports * I/O (for debug printing) * Unique supply * Statistics gathering * Access to the HscEnv, RuleBase, Annotations, Module The patch therefore refactors the top "skin" of every Core-to-Core pass, but does not change their functionality. 2. It adds a completely new facility to GHC: Core "annotations". The idea is that you can say {#- ANN foo (Just "Hello") #-} which adds the annotation (Just "Hello") to the top level function foo. These annotations can be looked up in any Core-to-Core pass, and are persisted into interface files. (Hence a Core-to-Core pass can also query the annotations of imported things.) Furthermore, a Core-to-Core pass can add new annotations (eg strictness info) of its own, which can be queried by importing modules. The design of the annotation system is somewhat in flux. It's designed to work with the (upcoming) dynamic plug-ins mechanism, but is meanwhile independently useful. Do not merge to 6.10! ] [Fix Trac #2674: in TH reject empty case expressions and function definitions simonpj@microsoft.com**20081030094528] [Change naming conventions for compiler-generated dictionaries and type functions simonpj@microsoft.com**20081029140858 Up to now, the data constructor dictionary for class C as been called ":DC". But there is no reason for the colon to be at the front; indeed it confuses the (simple-minded) pretty-printer for types. So this patch changes it to be "D:C". This makes Core a lot easier to read. Having a colon in the middle ensures that it can't clash with a user-written data type. Similarly I changed T:C Data type corresponding a class dictionary (was :TC) D:C Data constructor for class dictionary (was :DC) NTCo:T Coercion mapping from a newtype T to its representation type (was :CoT) TFCo:R Coercion mapping from a data family to its respresentation type R (was :CoFR) Rn:T The n'th respresentation data type for a data type T (was :RnT) Do not merge to 6.10. HEADS-UP: you'll need to recompile libraries from scratch. ROMAN: you could do the same for OccName.mkVectTyConOcc etc, if you wanted. ] [Fix tcrun031: yet more tidying up in TcDeriv simonpj@microsoft.com**20081029130155] [Add Outputable instance for CoercionI simonpj@microsoft.com**20081029130114] [Fix Trac #2720: inlining and casts simonpj@microsoft.com**20081028140828 The issue here is what happens when we have (f |> co) x where f is itself marked INLINE. We want callSiteInline to "see" the fact that the function is applied, and hence have some incentive to inline. I've done this by extending CoreUnfold.CallCtxt with ValAppCtxt. I think that should catch this case without messing up any of the others. ] [Clarify documentatoin simonpj@microsoft.com**20081028133009] [Update library version numbers in the release notes Ian Lynagh **20081023144018] [various updates to the release notes Simon Marlow **20081007151647] [Add library release notes Ian Lynagh **20080920155722] [Add release notes for the compiler Ian Lynagh **20080920114857] [Doc fix Ian Lynagh **20081028150534] [Rename some variables in docs Ian Lynagh **20081028150447] [Fix typos Ian Lynagh **20081028144655] [Mostly-fix Trac #2595: updates for existentials simonpj@microsoft.com**20081028115427 Ganesh wanted to update records that involve existentials. That seems reasonable to me, and this patch covers existentials, GADTs, and data type families. The restriction is that The types of the updated fields may mention only the universally-quantified type variables of the data constructor This doesn't allow everything in #2595 (it allows 'g' but not 'f' in the ticket), but it gets a lot closer. Lots of the new lines are comments! ] [Fix Trac #2723: keep track of record field names in the renamer simonpj@microsoft.com**20081028110445 The idea here is that with -XNamedFieldPuns and -XRecordWildCards we don't want to report shadowing errors for let fld = in C { .. } But to suppress such shadowing errors, the renamer needs to know that 'fld' *is* a record selector. Hence the new NameSet in TcRnFypes.RecFieldEnv ] [Remove dead code simonpj@microsoft.com**20081028074639] [Fix Trac #2713: refactor and tidy up renaming of fixity decls simonpj@microsoft.com**20081027222738 In fixing #2713, this patch also eliminates two almost-unused functions from RnEnv (lookupBndr and lookupBndr_maybe). The net lines of code is prety much unchanged, but more of them are comments! ] [Fix Trac #2701: make deriving check better for unlifted args simonpj@microsoft.com**20081025171211 Getting the automatic deriving mechanism to work really smoothly is surprisingly hard. I keep finding myself in TcDeriv! Anyway, this is a nice clean fix to Trac #2701. ] [Use pdflatex rather than latex for building Ian Lynagh **20081024112400 The Windows builder is having problems running ps2pdf, so this works aroudn the problem. ] [Remove an unmatched } in core.tex Ian Lynagh **20081024111750] [Add a usepackage{url} Ian Lynagh **20081024111458] [Update ANNOUNCE Ian Lynagh **20081022164423] [Fix a bug in the new scheduler Simon Marlow **20081023155017 If the current thread blocks, we should yield the Capability immediately, because the thread and hence possibly the current Task are now owned by someone else. This worked in the old scheduler, but we moved where the yield happens in the new scheduler which broke it. ] [add an assertion Simon Marlow **20081023154551] [fix a warning Simon Marlow **20081023082213] [traverse the spark pools only once during GC rather than twice Simon Marlow **20081022115233] [Refactoring and reorganisation of the scheduler Simon Marlow **20081022092744 Change the way we look for work in the scheduler. Previously, checking to see whether there was anything to do was a non-side-effecting operation, but this has changed now that we do work-stealing. This lead to a refactoring of the inner loop of the scheduler. Also, lots of cleanup in the new work-stealing code, but no functional changes. One new statistic is added to the +RTS -s output: SPARKS: 1430 (2 converted, 1427 pruned) lets you know something about the use of `par` in the program. ] [Work stealing for sparks berthold@mathematik.uni-marburg.de**20080915132846 Spark stealing support for PARALLEL_HASKELL and THREADED_RTS versions of the RTS. Spark pools are per capability, separately allocated and held in the Capability structure. The implementation uses Double-Ended Queues (deque) and cas-protected access. The write end of the queue (position bottom) can only be used with mutual exclusion, i.e. by exactly one caller at a time. Multiple readers can steal()/findSpark() from the read end (position top), and are synchronised without a lock, based on a cas of the top position. One reader wins, the others return NULL for a failure. Work stealing is called when Capabilities find no other work (inside yieldCapability), and tries all capabilities 0..n-1 twice, unless a theft succeeds. Inside schedulePushWork, all considered cap.s (those which were idle and could be grabbed) are woken up. Future versions should wake up capabilities immediately when putting a new spark in the local pool, from newSpark(). Patch has been re-recorded due to conflicting bugfixes in the sparks.c, also fixing a (strange) conflict in the scheduler. ] [include an elapsed time table Simon Marlow **20081023080648] [generate a valid summary for older GHC versions too Simon Marlow **20081023080629] [Fix Trac #2714 (a minor wibble) simonpj@microsoft.com**20081022145138 In boxy_match (which is a pure function used by preSubType) we can encounter TyVars not just TcTyVars; this patch takes account of that. ] [Reject programs with superclass equalities for now Manuel M T Chakravarty **20081021131721 - The current implementation of type families cannot properly deal with superclass equalities. Instead of making a half-hearted attempt at supporting them, which mostly ends in cryptic error message, rejecting right away with an appropriate message. MERGE TO 6.10 ] [Fix doc syntax Ian Lynagh **20081021183317] [Don't put the README file in the Windows installer; fixes trac #2698 Ian Lynagh **20081021162543 The README file talks about getting and building the sources, which doesn't make sense for the installer. ] [Comments and parens only simonpj@microsoft.com**20081021151401] [Do proper cloning in worker/wrapper splitting simonpj@microsoft.com**20081021143156 See Note [Freshen type variables] in WwLib. We need to clone type variables when building a worker/wrapper split, else we simply get bogus code, admittedly in rather obscure situations. I can't quite remember what program showed this up, unfortunately, but there definitely *was* one! (You get a Lint error.) ] [Don't float an expression wrapped in a cast simonpj@microsoft.com**20081021143019 There is no point in floating out an expression wrapped in a coercion; If we do we'll transform lvl = e |> co [_$_] to lvl' = e; lvl = lvl' |> co and then inline lvl. Better just to float out the payload (e). ] [Fix Trac #2668, and refactor TcDeriv simonpj@microsoft.com**20081021142922 TcDeriv deals with both standalone and ordinary 'deriving'; and with both data types and 'newtype deriving'. The result is really rather compilcated and ad hoc. Ryan discovered #2668; this patch fixes that bug, and makes the internal interfces #more uniform. Specifically, the business of knocking off type arguments from the instance type until it matches the kind of the class, is now done by derivTyData, not mkNewTypeEqn, because the latter is shared with standalone derriving, whree the trimmed type application is what the user wrote. ] [Spelling error in comment simonpj@microsoft.com**20081019233511] [White space only simonpj@microsoft.com**20081019233352] [Comments to explain strict overlap checking for type family instances simonpj@microsoft.com**20081019184208] [Allow type families to use GADT syntax (and be GADTs) simonpj@microsoft.com**20080923140535 We've always intended to allow you to use GADT syntax for data families: data instance T [a] where T1 :: a -> T [a] and indeed to allow data instances to *be* GADTs data intsance T [a] where T1 :: Int -> T [Int] T2 :: a -> b -> T [(a,b)] This patch fixes the renamer and type checker to allow this. ] [Improve crash message from applyTys and applyTypeToArgs simonpj@microsoft.com**20080923135419] [Wibble to ungrammatical error message simonpj@microsoft.com**20080920232256] [Comments only: replace ":=:" by "~" (notation for equality predicates) simonpj@microsoft.com**20080920232024] [FIX #2693 Manuel M T Chakravarty **20081021120107 - As long as the first reduceContext in tcSimplifyRestricted potentially performs improvement, we need to zonk again before the second reduceContext. It would be better to prevent the improvement in the first place, but given the current situation zonking is definitely the right thing to do. MERGE TO 6.10 ] [Restore the terminal attributes even if ghci does not exit normally. Judah Jacobson **20081020164109] [FIX #2688 Manuel M T Chakravarty **20081021044213 - Change in TcSimplify.reduceContext: We do *not* go around for new extra_eqs. Morally, we should, but we can't without risking non-termination (see #2688). By not going around, we miss some legal programs mixing FDs and TFs, but we never claimed to support such programs in the current implementation anyway. MERGE TO 6.10 ] [Move documentation within 80 column boundary. Thomas Schilling **20081014134016] [Improve haddock documentation for 'GHC.topSortModuleGraph'. Thomas Schilling **20081014133833] [Improve haddock documentation for HsExpr module. Thomas Schilling **20081014133740] [Improve Haddock-markup for HsDecls module. Thomas Schilling **20081014133556] [Run Haddock with compacting GC and show RTS statistics. Thomas Schilling **20081020111410] [FIX (partially) #2703: bug in stack overflow handling when inside block Simon Marlow **20081020121103 As a result of a previous ticket (#767) we disabled the generation of StackOverflow exceptions when inside a Control.Exception.block, on the grounds that StackOverflow is like an asynchronous exception. Instead we just increase the stack size. However, the stack size calculation was wrong, and ended up not increasing the size of the stack, with the result that the runtime just kept re-allocating the stack and filling up memory. ] [Re-export Located(..) and related functions Simon Marlow **20081020102422 So that clients don't need to import SrcLoc ] [whitespace fix Simon Marlow **20081020101241] [FIX #2691: Manually reset the terminal to its initial settings; works around a bug in libedit. Judah Jacobson **20081016024838] [Eliminate duplicate flags in the tab completion of ghci's :set command. Judah Jacobson **20081016015721] [Add dph haddock docs to the doc index Ian Lynagh **20081019133208] [Clean the bootstrapping extensible-exceptions package Ian Lynagh **20081017195942] [Fix trac #2687 Ian Lynagh **20081015163412 OtherPunctuation, ConnectorPunctuation and DashPunctuation are now treated as symbols, rather than merely graphic characters. ] [Fix trac #2680; avoid quadratic behaviour from (++) Ian Lynagh **20081015163235] [Fix the build when the bootstrapping compiler has a newer Cabal than us Ian Lynagh **20081015144023 We need to forcibly use the in-tree Cabal, or we get version mismatch errors ] [Fix the name of prologue.txt when making bindists Ian Lynagh **20081014114714] [Comments only simonpj@microsoft.com**20081015084501] [Fix Trac #2497; two separate typos in Lexer.x simonpj@microsoft.com**20081015084344 The patch to switch on lexing of 'forall' inside a RULES pragma wasn't working. This fixes it so that it does. ] [Update manual: tidy up instances, say more about type families in instance decls simonpj@microsoft.com**20081015080509] [Make tags work on Unices, too. Thomas Schilling **20081014211236] [Undefine __PIC__ before defining it to work around "multiple definitions of __PIC__" warnings Clemens Fruhwirth **20081014143206] [Add "dyn" to GhcRTSWays when compiling --enable-shared Clemens Fruhwirth **20081014125123] [Fill out the ghc package's cabal file Ian Lynagh **20081013235817] [Patching libffi so it can be built as DLL Clemens Fruhwirth **20081014103459 libffi-dllize-3.0.6.patch should be pushed upstream ] [Add 'etags' makefile target. Thomas Schilling **20081013170927 This only works with stage2 since `ghctags' is built against stage1 but not against the bootstrapping compiler. Also note that all of GHC must typecheck for this target to succeed. Perhaps we should not overwrite the old TAGS file by default then. ] [Use cabal information to get GHC's flags to `ghctags'. Thomas Schilling **20081013170658 By giving the dist-directory to ghctags we can get all the GHC API flags we need in order to load the required modules. The flag name could perhaps be improved, but apart from that it seems to work well. ] [Version bump for libffi to 3.0.6 Clemens Fruhwirth **20081014081300] [Encode shared/static configuration into stamps to do the right thing when rebuilding Clemens Fruhwirth **20081013221530] [Add a link to the GHC API docs from the library haddock index Ian Lynagh **20081013195943] [Link to the GHC API documentation from the main doc page Ian Lynagh **20081013200927] [Whitespace only in docs/index.html Ian Lynagh **20081013200625] [Tweak gen_contents_index Ian Lynagh **20081013192548 It now works again after it has been installed, as well as while it is in a source tree. After it's been installed it filters out the ghc package, as that currently swamps everything else in the index. ] [Build fixes for DLLized rts Clemens Fruhwirth **20081013201608] [Do not filter the rts from linked libraries in linkDynLib as Windows does not allow unresolved symbols Clemens Fruhwirth **20081013201426] [Add HsFFI.o to INSTALL_LIBS Clemens Fruhwirth **20081013200945] [Rename symbol macros to a consistant naming scheme Clemens Fruhwirth **20081013162433] [Fix #2685: two Bool arguments to tidyTypeEnv were the wrong way around Simon Marlow **20081013121339 So -XTemplateHaskell was behaving like -fomit-interface-file-pragmas, and vice versa. ] [Simplify the "is $bindir in $PATH" test Ian Lynagh **20081011191008] [Correct the "is $bindir in $PATH" test Ian Lynagh **20081011191030 We were testing neq instead of eq ] [Fix a typo which was causing ghci to quit on commands errors pepe **20081011114720] [Drop libm from the linker dependencies for libffi Clemens Fruhwirth **20081011074524] [Do not generate haddock documentation when running install-docs in libffi Clemens Fruhwirth **20081010192318] [When waking up thread blocked on TVars, wake oldest first (#2319) Josef Svenningsson **20081010150322 StgTVarWatchQueue contains the threads blocked on a TVar in order youngest first. The list has to be traversed backwards to unpark the threads oldest first. This improves the fairness when using STM in some situations. ] [add readTVarIO :: TVar a -> IO a Simon Marlow **20081010131545] [fix #2636: throw missing module errors as SourceErrors, not ErrMsg Simon Marlow **20081010131535] [atomicModifyIORef: use a local cas() instead of the global lock Simon Marlow **20081008154702 This should improve scaling when using atomicModifyIORef ] [Delay building libffi until package.conf is created and fix bindist Clemens Fruhwirth **20081010073106] [Install a versioned ghc-pkg script; fixes trac #2662 Ian Lynagh **20081009164946] [Fix bindist creation: Only the main RTS was being put in the bindists Ian Lynagh **20081009163451] [pushAtom: add missing case for MachNullAddr (#2589) Simon Marlow **20081009091118] [undo incorrect assertion, and fix comments Simon Marlow **20081009085118] [remove old GRAN/PARALLEL_HASKELL code Simon Marlow **20081009085051] [FIX #2639 Manuel M T Chakravarty **20081009132328 MERGE TO 6.10 ] [Cover PredTy case in Type.tyFamInsts Manuel M T Chakravarty **20081009061435 MERGE TO 6.10 ] [Drop ghcconfig.h/RtsConfig.h from libffi's package.conf.in Clemens Fruhwirth **20081009071342] [Don't use sed's -i flag as Solaris doesn't know it in libffi/Makefile Clemens Fruhwirth **20081008234455] [Don't use /dev/null trick to create empty object files in libffi/Makefile Clemens Fruhwirth **20081008232902] [Turn libffi into a Haskell package Clemens Fruhwirth **20081008170443] [Make 'getModSummary' deterministic. Thomas Schilling **20081008144032] [Add accessors to 'HsModule' and haddockify it. Thomas Schilling **20081007235656] [fix syntax errors in src-dist publish rules Simon Marlow **20081008103432] [add comments and an ASSERT_LOCK_HELD() Simon Marlow **20081008112627] [Fix #2663: we had a hard-wired capabilities[0] Simon Marlow **20081008112609 For some unknown reason in schedulePostRunThread() we were always passing capabilities[0] rather than the current Capability to throwToSingleThreaded(). This caused all kinds of weird failures and crashes in STM code when running on multiple processors. ] [Fix #1955 for heap profiles generated by +RTS -hT Simon Marlow **20081003150745] [add a section id for +RTS -hT Simon Marlow **20081007151007] [update documentation for PostfixOperators Simon Marlow **20081007150957] [fix markup Simon Marlow **20081007150943] [Fix bug in DPH docs Roman Leshchinskiy **20081008101618] [Add short DPH section to users guide Roman Leshchinskiy **20081008064754 MERGE TO 6.10 ] [Users Guide: added type family documentation Manuel M T Chakravarty **20081008061927 MERGE TO 6.10 ] [Track changes to package dph Roman Leshchinskiy **20081008032859 MERGE TO 6.10 ] [Build a profiled GHC API by default if p is in GhcLibWays Ian Lynagh **20081007152318] [Check whether mk/validate.mk defines anything after validating Ian Lynagh **20081007144855] [Remove #define _BSD_SOURCE from Stg.h Ian Lynagh **20081006101959 It's no longer needed, as base no longer #includes it ] [Make ghctags compile again. Thomas Schilling **20081007135705] [Revert AutoLinkPackages change for dynamic libraries. Cabal handles that now. Clemens Fruhwirth **20081007100417] [Change suffix for dyn. linked executables from _real to .dyn Clemens Fruhwirth **20081007100750] [Add accessors to 'Target' fields and haddockify. Thomas Schilling **20081006222940 MERGE TO 6.10 ] [Make 'gblock' and 'gunblock' part of 'ExceptionMonad'. This way the Thomas Schilling **20081006222831 default implementations of 'gbracket' and 'gfinally' just work. MERGE TO 6.10 ] [Add Word8 support to vectoriser Roman Leshchinskiy **20081007004416 MERGE TO 6.10 ] [Fix generating OS X installers: Set COMMAND_MODE=unix2003 Ian Lynagh **20081005222715 If we don't specify COMMAND_MODE=unix2003 then xcodebuild defaults to setting it to legacy, which means that ar builds archives without a table of contents. That makes the build fail later on. ] [We need to set datadir = $(libdir) in bindists Ian Lynagh **20081005143307 We already do in the normal Makefiles. This is because GHC needs package.conf and unlit to be in the same place (and things like ghc-pkg need to agree on where package.conf is, so we just set it globally). ] [prep-bin-dist-mingw complains if it finds a bad version of windres Ian Lynagh **20081004175351] [removed Data.Generics.Basics, added Data.Data 'Jose Pedro Magalhaes '**20081002082808] [Fix a build problem with GHC 6.4.2 Ian Lynagh **20081003195700] [No AutoLinkPackages for dynamic library linking Clemens Fruhwirth **20081003185304] [use ghcError for error in command line Clemens Fruhwirth **20081001125648] [Fix warnings simonpj@microsoft.com**20081003171207] [Always use extensible exceptions in ghc-pkg, rather than using ifdefs Ian Lynagh **20081003161247] [Use a proper exception for IOEnvFailure, not just a UserError Ian Lynagh **20081003160129] [Use an extensible-exceptions package when bootstrapping Ian Lynagh **20081003140216 Ifdefs for whether we had extensible exceptions or not were spreading through GHC's source, and things would only have got worse for the next 2-3 years, so instead we now use an implementation of extensible exceptions built on top of the old exception type. ] [Expunge ThFake, cure Trac #2632 simonpj@microsoft.com**20081003140423 This patch fixes a dirty hack (the fake ThFake module), which in turn was causing Trac #2632. The new scheme is that the top-level binders in a TH [d| ... |] decl splice get Internal names. That breaks a previous invariant that things like TyCons always have External names, but these TyCons are never long-lived; they live only long enough to typecheck the TH quotation; the result is discarded. So it seems cool. Nevertheless -- Template Haskell folk: please test your code. The testsuite is OK but it's conceivable that I've broken something in TH. Let's see. ] [Make a debug check more refined simonpj@microsoft.com**20081003140144] [Add ASSERTs to all calls of nameModule simonpj@microsoft.com**20081003135334 nameModule fails on an InternalName. These ASSERTS tell you which call failed. ] [Let parseModule take a ModSummary like checkAndLoadModule did. Thomas Schilling **20081002230412 To get the ModSummary for a ModuleName getModSummary can be used. It's not called find* or lookup* because it assumes that the module is in the module graph and throws an exception if it cannot be found. Overall, I'm not quite sure about the usefulness of this function since the user has no control about which filetype to grab (hs or hs-boot). ] [Remove some out-of-date entries from .darcs-boring Ian Lynagh **20081002201519] [TFs: Allow repeated variables in left-hand sides of instances Manuel M T Chakravarty **20081002134539 MERGE TO 6.10 ] [Clean up some comments Manuel M T Chakravarty **20081002074642 MERGE TO 6.10 ] [Make the new binder-swap stuff in OccurAnal work right for GlobalIds simonpj@microsoft.com**20081002133002 See Note [Binder swap on GlobalId scrutinees]. I hadn't got this right before, so repeated cases on imported Ids weren't getting optimised. ] [Minor refactoring only simonpj@microsoft.com**20081002132929] [Comments only simonpj@microsoft.com**20081002132833] [Zap dead-ness info appropriately in SpecConstr simonpj@microsoft.com**20081002132657 SpecConstr can make pattern binders come alive, so we must remember to zap their dead-variable annotation. See extendCaseBndrs. (This was triggering a Core Lint failure in DPH.) ] [Suppress invalid Core Lint complaint about lack of constructors simonpj@microsoft.com**20081002132426] [add some more GC roots (fixes conc048, and possibly some others) Simon Marlow **20081001164427] [Document +RTS -hT Simon Marlow **20081001163222 We forgot to document this in GHC 6.8 ] [fix new-qualified-operators link Simon Marlow **20081001163105] [Proper error message for unsupported pattern signatures Manuel M T Chakravarty **20081001144339 - Pattern signatures must be identical to the type expected for the pattern; see Note [Pattern coercions] - We now signal an appropriate error if an equality coercion would be needed (instead of just generating Core that doesn't typecheck) MERGE TO 6.10 ] [Prevent excessive inlining with DPH Roman Leshchinskiy **20081002012055 This adds a new flag -finline-if-enough-args which disables inlining for partially applied functions. It is automatically set by -Odph. This is a temporary hack and should remain undocumented. MERGE TO 6.10 ] [On Windows, check that we have a good version of windres when configuring Ian Lynagh **20081001171133] [Call $(PERL) rather than perl when making the manpage Ian Lynagh **20080930155054] [don't install the installPackage program Ian Lynagh **20080930145714] [Fix #2637: conc032(threaded2) failure Simon Marlow **20081001135549 There was a race condition whereby a thread doing throwTo could be blocked on a thread that had finished, and the GC would detect this as a deadlock rather than raising the pending exception. We can't close the race, but we can make the right thing happen when the GC runs later. ] [Remove outdated link to OGI webpage Simon Marlow **20080930150912] [TFs: Fixed InstContextNorm (and simplification of IPs) Manuel M T Chakravarty **20081001131303 MERGE TO 6.10 ] [TcSimplify.reduceImplication: clean up Manuel M T Chakravarty **20081001091315 - This cleans up some of the mess in reduceImplication and documents the precondition on the form of wanted equalities properly. - I also made the back off test a bit smarter by allowing to back off in the presence of wanted equalities as long as none of them got solved in the attempt. (That should save generating some superfluous bindings.) MERGE TO 6.10 ] [Make sure to zonk the kind of coercion variables Manuel M T Chakravarty **20081001053243 MERGE TO 6.10 ] [Remover PROT_EXEC flag from mmap() Simon Marlow **20080930141842 Needed for #738 fix ] [Fix #2410: carefully generate unique names for CAF CCs Simon Marlow **20080930141812] [fix #2594: we were erroneously applying masks, as the reporter suggested Simon Marlow **20080930115611 My guess is that this is left over from when we represented Int8 and friends as zero-extended rather than sign-extended. It's amazing it hasn't been noticed earlier. ] [Unconditionalize definition of DYNAMIC_* so that libffi.so/.dll is removed even when BuildSharedLibs is reset to NO Clemens Fruhwirth **20080930085449] [Type families: need to instantiate flexible skolems before other flexibles Manuel M T Chakravarty **20080930053559 MERGE TO 6.10 ] [Fix warnings Manuel M T Chakravarty **20080929142227] [Type families: consider subst rules both way Manuel M T Chakravarty **20080929141040 - applySubstFam, applySubstVarVar & applySubstVarFam need to return their second argument -to be put into the todo list- if the rule would be applicable if the equalities would be supplied in the opposite order. MERGE TO 6.10 ] [Clean up a bit and improve an error message pepe**20080926211429] [Don't capture error calls in tryUser pepe**20080926204836 A previous patch slightly changed the semantics of tryUser. This patch restores the original behaviour (as expected in :print) ] [tweaks to this section of the docs Simon Marlow **20080927141834] [Add -outputdir flag (#2295) Simon Marlow **20080927141822] [oops, forgot to add -XNewQualifiedOperators to the flags table Simon Marlow **20080923140449] [Fix making OS X installers from source tarballs Ian Lynagh **20080927150507 I'm not sure why it works in the HEAD, but when making an installer from the 6.10.1 beta configure hangs when doing the CHECK_HIST_ERRORS test (during rl_initialize, I believe). Giving make /dev/null as stdin fixes it. ] [Fix #2411: missing case for CATCH_STM_FRAME in raiseAsync() Simon Marlow **20080926232806] [Fix parsing of -ignore-package flag. Bertram Felgenhauer **20080925053820] [Add an example of how to use SCCs to the user guide Ian Lynagh **20080926203832] [Add some description of the +RTS -t/-s/-S output Ian Lynagh **20080926200203] [Remove a redundant options pragma Ian Lynagh **20080926152731] [Split ShowVersion etc off into a different type to DoInteractive etc Ian Lynagh **20080926140539 This fixes trac #1348 (ghci --help gave ghc's help), and also tidies things up a bit. Things would be even tidier if the usage.txt files were put into a .hs file, so that ShowUsage wouldn't need to be able to find the libdir. ] [Pass SRC_HC_OPTS to GHC when building GHC's Main.hs Ian Lynagh **20080926131609] [Improve runghc docs; fixes trac #2477 Ian Lynagh **20080926124425] [Type families: fixes in flattening & finalisation Manuel M T Chakravarty **20080925225324 * Finalisation didn't do the right thing for equalities x ~ y, where x was instantiated, but not zonked and y flexible (need to do y := x) * During flattening we weren't careful enough when turning wanteds intermediates into locals Both bugs showed up in a small example of SPJ: linear :: HasTrie (Basis v) => (Basis v, v) linear = basisValue class HasTrie a where type family Basis u :: * basisValue :: (Basis v,v) basisValue = error "urk" ] [Fix the behaviour of flags like --help and --version; fixes trac #2620 Ian Lynagh **20080925165618 They should override other mode flags, not conflict with them ] [Follow the integer package changes Ian Lynagh **20080925133855] [Type families: fix decomposition problem Manuel M T Chakravarty **20080925084139 * Fixes the problem reported in ] [Don't exit ghci if :info is called on an undefined identifier. Judah Jacobson **20080924212422] [Fix maintainer-clean Ian Lynagh **20080924230553] [Use -f when making the runhaskell symlink Ian Lynagh **20080924124255 Otherwise installation fails if runhaskell already exists. ] [Use -perm -100 rather than -perm /a+x when looking for executable files Ian Lynagh **20080924124137 /a+x doesn't work on some Solaris and OS X machines. Spotted by Christian Maeder. ] [Use $(FIND) rather than find, as the former may be gfind Ian Lynagh **20080924123323] [Look for gfind as well as find Ian Lynagh **20080924123046] [In configure, don't call FPTOOLS_HADDOCK Ian Lynagh **20080924122558 We now use the in-tree haddock, so we don't need to look for it. ] [Use $(TAR) rather than tar Ian Lynagh **20080924121759 Fixes problems on Solaris, where we need to use gtar instead of tar ] [Add $(strip) to a Makefile test Ian Lynagh **20080924120940 Fixes making bindists on solaris. Patch from Christian Maeder. ] [Use test -f rather than test -e, for portability (Solaris) Ian Lynagh **20080924120840] [Remove some dependencies on bootstrapping.conf from libraries/Makefile Ian Lynagh **20080923205755 They were causing some unnecessary work: Running make in a built tree reregisters the GHC package in bootstrapping.conf, and the build system thought that this updated timestamp meant that the configure stamps were out of date. This is particularly bad for the libraries with configure scripts, as those take a while to run. The bootstrapping.conf is built in an earlier phase ("make boot") so one shouldn't rely on the dependencies anyway. ] [Bump the version number to 6.11 Ian Lynagh **20080923165613] [Generalise type of 'defaultErrorHandler' so it can be used inside a Ghc session. Thomas Schilling **20080921085647] [Make "sh -e boot" work Ian Lynagh **20080921111508] [Use -f rather than -e for portability Ian Lynagh **20080921111436] [Add some special cases for putting dph in bindists Ian Lynagh **20080921000406] [Escape a hash in the Makefile (it was breaking source dist creation) Ian Lynagh **20080920232945] [Disallow package flags in OPTIONS_GHC pragmas (#2499) Simon Marlow **20080923173904] [#2566: emit a warning for 'ghc -c foo.bar' Simon Marlow **20080923144956 $ ghc -c foo.bar Warning: the following files would be used as linker inputs, but linking is not being done: foo.bar ghc: no input files Usage: For basic information, try the `--help' option. ] [Fix to new executable allocation code (fixed print002 etc.) Simon Marlow **20080922210915 The problem here is caused by the fact that info tables include a relative offset to the string naming the constructor. Executable memory now resides at two places in the address space: one for writing and one for executing. In the info tables generated by GHCi, we were calculating the offset relative to the writable instance, rather than the executable instance, which meant that the GHCi debugger couldn't find the names for constructors it found in the heap. ] [clean sm/Evac_thr.c and sm/Scav_thr.c Simon Marlow **20080922152827] [add -XNewQualifiedOperators (Haskell' qualified operator syntax) Simon Marlow **20080922152340] [Fix Trac #2597 (first bug): correct type checking for empty list simonpj@microsoft.com**20080920212010 The GHC front end never generates (ExplicitList []), but TH can. This patch makes the typechecker robust to such programs. ] [Fix Trac #2597 (second bug): complain about an empty DoE block simonpj@microsoft.com**20080920211101 When converting an empty do-block from TH syntax to HsSyn, complain rather than crashing. ] [Update dependencies Ian Lynagh **20080920183534] [Fix building with GHC 6.6 Ian Lynagh **20080920162918] [Remove fno-method-sharing from the list of static flags Ian Lynagh **20080920010635 It is now a dynamic flag ] [Tidy up the treatment of dead binders simonpj@microsoft.com**20080920175238 This patch does a lot of tidying up of the way that dead variables are handled in Core. Just the sort of thing to do on an aeroplane. * The tricky "binder-swap" optimisation is moved from the Simplifier to the Occurrence Analyser. See Note [Binder swap] in OccurAnal. This is really a nice change. It should reduce the number of simplifier iteratoins (slightly perhaps). And it means that we can be much less pessimistic about zapping occurrence info on binders in a case expression. * For example: case x of y { (a,b) -> e } Previously, each time around, even if y,a,b were all dead, the Simplifier would pessimistically zap their OccInfo, so that we can't see they are dead any more. As a result virtually no case expression ended up with dead binders. This wasn't Bad in itself, but it always felt wrong. * I added a check to CoreLint to check that a dead binder really isn't used. That showed up a couple of bugs in CSE. (Only in this sense -- they didn't really matter.) * I've changed the PprCore printer to print "_" for a dead variable. (Use -dppr-debug to see it again.) This reduces clutter quite a bit, and of course it's much more useful with the above change. * Another benefit of the binder-swap change is that I could get rid of the Simplifier hack (working, but hacky) in which the InScopeSet was used to map a variable to a *different* variable. That allowed me to remove VarEnv.modifyInScopeSet, and to simplify lookupInScopeSet so that it doesn't look for a fixpoint. This fixes no bugs, but is a useful cleanup. * Roman pointed out that Id.mkWildId is jolly dangerous, because of its fixed unique. So I've - localied it to MkCore, where it is private (not exported) - renamed it to 'mkWildBinder' to stress that you should only use it at binding sites, unless you really know what you are doing - provided a function MkCore.mkWildCase that emodies the most common use of mkWildId, and use that elsewhere So things are much better * A knock-on change is that I found a common pattern of localising a potentially global Id, and made a function for it: Id.localiseId ] [Gix the ghcii script Ian Lynagh **20080919174651 The ghc executable name doesn't have a version number on Windows, so don't put one in the script. ] [Create runhaskell as well as runghc Ian Lynagh **20080919153010] [On Linux use libffi for allocating executable memory (fixed #738) Simon Marlow **20080919134602] [Move the context_switch flag into the Capability Simon Marlow **20080919102601 Fixes a long-standing bug that could in some cases cause sub-optimal scheduling behaviour. ] [Fix building the extralibs tarball Ian Lynagh **20080919133555 We now need to dig the appropriate lines out of packages, rather than just catting libraries/extra-packages, in order to find out what the extralibs are. ] [Install libffi when installing frmo a bindist Ian Lynagh **20080919130332] [Fix how we put libffi into bindists Ian Lynagh **20080919125528] [TAG 6.10 branch has been forked Ian Lynagh **20080919123437] [Don't require Parser.y in a source dist Ian Lynagh **20080919115831] [Add HpcParser.hs to source dists Ian Lynagh **20080919115816] [Fix the list of generated files that need to go into the source dists Ian Lynagh **20080919112522] [Improve documentation of overlapping instances simonpj@microsoft.com**20080919093147] [Put generated files in source dists Ian Lynagh **20080918194424 We don't want to require that users building source dists have alex/happy ] [Add libraries/syb to .darcs-boring Ian Lynagh **20080918190116] [Fix a couple of issues with :print pepe**20080918122133 - Ticket #1995: Unsoundness with newtypes - Ticket #2475: "Can't unify" error when stopped at an exception In addition this patch adds the following: - Unfailingness: RTTI cannot panic anymore. In case of failure, it recovers gracefully by returning the "I know nothing" type - A -ddump-rtti flag ] [wibble pepe **20080418172303] [RichTokenStream support Chaddai Fouche **20080918165256 This patch adds support for raw token streams, that contain more information than normal token streams (they contains comments at least). The "lexTokenStream" function brings this support to the Lexer module. In addition to that, functions have been added to the GHC module to make easier to recover of the token stream of a module ("getTokenStream"). Building on that, I added what could be called "rich token stream": token stream to which have been added the source string corresponding to each token, the function addSourceToToken takes a StringBuffer and a starting SrcLoc and a token stream and build this rich token stream. getRichTokenStream is a convenience function to get a module rich token stream. "showRichTokenStream" use the SrcLoc information in such a token stream to get a string similar to the original source (except unsignificant whitespaces). Thus "putStrLn . showRichTokenStream =<< getRichTokenStream s mod" should print a valid module source, the interesting part being to modify the token stream between the get and the show of course. ] [When passing gcc -B, also tell it where the mingw include directory is Ian Lynagh **20080918143312] [Don't put the mingw directory in RTS's package.conf Ian Lynagh **20080918143118] [Be more forceful when cleaning in compiler/ and ghc/ Ian Lynagh **20080918134443 Now that the Cabal file is generated by configure, it would be nice if clean worked even if the cabal file is missing. So now we just rm -rf the dist directory. ] [Generate ghc.cabal and ghc-bin.cabal with configure Ian Lynagh **20080918133636 This allows us to put the proper version number into them ] [Make the ghci scripts point to the versioned GHC program, not just "ghc" Ian Lynagh **20080918122516] [Fix Trac #1470: improve handling of recursive instances (needed for SYB3) simonpj@microsoft.com**20080918161719 This bug has been hanging around for a long time, as you'll see by its number. The fix implements a feature that is really needed by SYB3, to allow an instance to (rather indirectly) refer to itself. The trickiness comes when solving the superclass constraints. The whoel issue is explained in Note [Recursive instances and superclases] in TcSimplify. In cracking this one I found I could remove the WantSCs argument to the ReduceMe flag, which is a worthwhile simplification. Good! ] [Comments only simonpj@microsoft.com**20080918155602] [Replace ASSERT with WARN, and explain why simonpj@microsoft.com**20080918155245 The DPH library tripped an ASSERT. The code is actually OK, but it's badly-optimised so I changed it to WARN. The issue here is explained in ClosureInfo, Note [Unsafe coerce complications]. ] [Add a missing "prime" (env' --> env'') thereby fixing a tripping WARN. Hurrah! simonpj@microsoft.com**20080918155144] [Fix nasty infelicity: do not short-cut empty substitution in the simplifier simonpj@microsoft.com**20080917162910 I was perplexed about why an arity-related WARN was tripping. It took me _day_ (sigh) to find that it was because SimplEnv.substExpr was taking a short cut when the substitution was empty, thereby not subsituting for Ids in scope, which must be done (CoreSubst Note [Extending the Subst]). The fix is a matter of deleting the "optimisation". Same with CoreSubst.substSpec, although I don't know if that actually caused a probem. ] [Avoid arity reduction when doing eta-reduce simonpj@microsoft.com**20080917162704 We like things with high arity, so when doing eta reduction it's probably a good idea to avoid reducing arity. ] [Add extra WARN test simonpj@microsoft.com**20080917162434 This warning tests that the arity of a function does not decrease. And that it's at least as great as the strictness signature. Failing this test isn't a disater, but it's distinctly odd and usually indicates that not enough information is getting propagated around, and hence you may get more simplifier iterations. ] [Comments only simonpj@microsoft.com**20080917162350] [Re-adjust interaction between -ddump flags and force-recompilation simonpj@microsoft.com**20080917161920 If you say -ddump-xx we effectively add -fforce-recomp, so that you see your dump output. But this works badly in --make mode, because you get the ddump output for every module, which is probably not what you want. This patch forces recompilation with -ddump-X only in one-shot mode. Of course, this only affects people using -ddump options. ] [Add Outputable GhcMode instance simonpj@microsoft.com**20080917161847] [Improve error reporting for 'deriving' (Trac #2604) simonpj@microsoft.com**20080917135104] [Add link to GADT paper re rigid types simonpj@microsoft.com**20080916094521] [Fix MacOS X build: don't believe __GNUC_GNU_INLINE__ on MacOS X Simon Marlow **20080918112856] [require Alex version 2.1.0 Simon Marlow **20080918112812 Having 2.0.1 causes some unicode tests to fail ] [Type families: fixes in the new solver Manuel M T Chakravarty **20080918100934] [ext-core library: Parser fixes; make it build with the HEAD Tim Chevalier **20080918090349 In the ext-core parser I guess I never tested: * existential type variable bindings in case alts * empty data declarations That'll learn me! ] [Wibble ghc-pkg imports to fix building on Windows Ian Lynagh **20080917210813] [ghc-pkg needs to make package.conf with sensible permissions Ian Lynagh **20080917192155 It was calling openTempFile which uses a 600 permissions mask. ] [Change 'loadWithCompiler' callback argument to just print warnings. Thomas Schilling **20080917102925 Rename function accordingly. The callback wasn't very flexible to begin with. There's pretty much no way around to calling 'compile' inside that callback since 'upsweep' depends on certain side effects of compile. It therefore makes more sense to restrict the callback to its intended use only, namely to log warnings and errors. ] [Fix: GhcStage2HcOpts were being added to stage 3 too Simon Marlow **20080917085917] [Type families: unify with family apps in checking mode Manuel M T Chakravarty **20080917062548] [Type families: bug fixes Manuel M T Chakravarty **20080916151254] [Keep sysnonyms folded in equalities if possible Manuel M T Chakravarty **20080916075700] [Type families: apply flattening coercions in the right order Manuel M T Chakravarty **20080916055136] [TcTyFuns: tidy warning Manuel M T Chakravarty **20080915031423] [Signature for Inst.isValidWantedEqInst Manuel M T Chakravarty **20080915030118] [Remember if RewriteInst is swapped & bug fixes Manuel M T Chakravarty **20080914163639] [Type families: fixed all non-termination in the testsuite Manuel M T Chakravarty **20080914120638] [Type families: completed the new equality solver Manuel M T Chakravarty **20080913133631 - Implements normalisation of class constraints containing synonym family applications or skolems refined by local equalities. - Clean up of TcSimplify.reduceContext by using the new equality solver. - Removed all the now unused code of the old algorithm. - This completes the implementation of the new algorithm, but it is largely untested => many regressions. ] [Use the new -optdep flag replacements when building with >= GHC 6.9 Ian Lynagh **20080916220057 Fix building the HEAD with itself ] [Use "exec" when running ghc in the wrapper Ian Lynagh **20080915100217] [Add "#!/bin/sh" to runghc.wrapper Ian Lynagh **20080914153507] [Add a "#!/bin/sh" to ghc.wrapper Ian Lynagh **20080914153344] [Fixing directory creation to not create "" directories inside hpc report (harmless but needless) andygill@ku.edu**20080916172313] [Fix Trac #2052 Allowing hpc to understand hsc files. andygill@ku.edu**20080916030521] [Fix Trac #2311: creates subdirs for package coverage information andygill@ku.edu**20080915204322] [FIX #2469: sort out our static/extern inline story Simon Marlow **20080916132222 gcc has changed the meaning of "extern inline" when certain flags are on (e.g. --std=gnu99), and this broke our use of it in the header files. ] [Fix a warning Simon Marlow **20080916130922] [Make the matching of the filename ghc.exe case insensitive, fixes bug #2603 Neil Mitchell **20080916160311] [Stop using mremap() to allocate space for trampolines Simon Marlow **20080915145924 This was causing problems because sometimes mremap() moved the memory we had allocated from the low 2Gb to above the 2Gb boundary, causing some linkages to fail. There's no MAP_32BIT flag to mremap(). So now we just use mmap(MAP_ANON|MAP_32BIT) to allocated space for the trampolines. People without MAP_32BIT (eg. *BSD) will still have to do something else here, such as allocating memory from a fixed address; so I've made it slightly easier for those guys, but there's still work to do (#2063). One solution (that Simon PJ is advocating) is to turn on -fPIC by default on x86-64. This is a good solution as it removes the need for MAP_32BIT, but doesn't work with -fvia-C, so probably this is for later. ] [add $(GhcStage[123]HcOpts) Simon Marlow **20080912155549] [Improve handling of -fdph-* flags Roman Leshchinskiy **20080916034746] [Add -fdph-this Roman Leshchinskiy **20080916033710] [Remove last traces of package ndp Roman Leshchinskiy **20080916033428] [Clean up vectorisation error messages Roman Leshchinskiy **20080916013236] [Fix vectoriser bug Roman Leshchinskiy **20080915042823 We were using mkWildId in situations where it cause disastrous shadowing ] [Track changes to dph Roman Leshchinskiy **20080912114028] [Change desugaring of PArr literals Roman Leshchinskiy **20080912015609] [Expose the dph packages automatically if -dph-* is set Roman Leshchinskiy **20080912004403] [Don't panic on non-vectorisable expressions Roman Leshchinskiy **20080911054333] [-Odph implies -fno-spec-constr-count Roman Leshchinskiy **20080910045339] [Improve warning for SpecConstr simonpj@microsoft.com**20080915154908] [White space only simonpj@microsoft.com**20080915154841] [Minor refactoring to get rid of Type.splitNewTyConApp simonpj@microsoft.com**20080915072946] [Refactor the desugaring of RULE lhss a bit simonpj@microsoft.com**20080915150601 This is just a tidy-up. Previously we were calling occurAnalyse twice on each LHS which was silly and a bit unclean too. This patch should have no overall effect, though. ] [Do not use the Static Arg Transformation by default with -O2 simonpj@microsoft.com**20080915150433 Max has some more heuristics to add, and is meanwhile worried that having SAT on by default will make some highly-tuned array programs worse. So it's off by default. Use -fstatic-argument-transformation to switch it on. ] [Comments, and a couple of asserts, only simonpj@microsoft.com**20080914114641] [Fix Trac #2587: take account of type lets simonpj@microsoft.com**20080914113434 GHC allows a non-recursive let for type varaibles let a = TYPE ty in ... But the free-variable finder had not caught up with this fact. This patch catches up. ] [Don't try to float type-lets simonpj@microsoft.com**20080914113324 A type let shouldn't really occur in SetLevels, but if it does, this patch makes sure it is left alone. ] [add refs and fix a bug (noted by Peter Gammie) in docs of arrow notation Ross Paterson **20080915104757] [Generalise type of 'withExtendedLinkEnv'. Thomas Schilling **20080915085738] [Use 'GhcMonad' in ghci/InteractiveUI. Thomas Schilling **20080915085633] [Use 'GhcMonad' in ghci/GhciTags. Thomas Schilling **20080915084922] [Use 'GhcMonad' in ghci/Debugger. Thomas Schilling **20080915084738] [Use 'GhcMonad' in ghci/GhciMonad. Thomas Schilling **20080915084646] [Use 'GhcMonad' in ghc/Main. Thomas Schilling **20080914232957] [Require PatternSignatures for bootstrapping compiler. Thomas Schilling **20080914232642] [Use 'GhcMonad' in InteractiveEval. Thomas Schilling **20080914232454] [Use 'GhcMonad' in GHC and split up checkModule into phases. Thomas Schilling **20080914232044 I'm not sure I covered all the ways of throwing errors in the code. Some functions throw ProgramErrors, some error messages. It's still quite a mess, but we're getting closer. The missing cases are mostly errors that cannot be fixed by the API client either or are a result of wrong usage, so are in any case fatal. One function, 'getModuleInfo', still returns a 'Maybe', but the documentation suggests it should always succeed. So I may change that soon. The spit-up of of 'checkModule' has pros and cons. The various forms of 'checkModule*' now become: checkAndLoadModule ms False ~~> loadModule =<< typecheckModule =<< parseModule (ms_mod_name ms) checkAndLoadModule ms True ~~> loadModule =<< desugarModule =<< typecheckModule =<< parseModule (ms_mod_name ms) checkModule mn False ~~> typecheckModule =<< parseModule mn checkModule mn True ~~> desugarModule =<< typecheckModule =<< parseModule mn The old APIs cannot easily be provided, since the result type would be different depending on the second argument. However, a more convenient API can be modelled on top of these four functions ({parse,typecheck,desugar,load}Module). ] [Use 'GhcMonad' in DriverPipeline. Also haddockify a bit while we're at it. Thomas Schilling **20080914220628] [Use 'GhcMonad' in HscMain. Thomas Schilling **20080914213655] [Use 'GhcMonad' in DriverMkDepend. Thomas Schilling **20080914212113] [Haddockify DynFlags (partial). Thomas Schilling **20080914211718] [Haddockify 'IE'. Thomas Schilling **20080914210016] [Provide accessors for 'ImportDecl'. Thomas Schilling **20080914205811] [Start haddockifying 'HsBindLR'. Thomas Schilling **20080914205629] [Document 'parseStaticFlags'. Thomas Schilling **20080914205316] [Introduce 'GhcMonad' class and two default implementations 'Ghc' and 'GhcT'. Thomas Schilling **20080914204930 This monad will be required by most public API calls. ] [Give the "Failing due to -Werror" message a name. Thomas Schilling **20080914173904] [Make typechecker top-level functions also return messages instead of Thomas Schilling **20080914173228 printing them. ] [Reflect changes of desugarer error reporting in VectMonad. Thomas Schilling **20080914172711] [Generalise 'handleGhcException' to work with any 'ExceptionMonad'. Thomas Schilling **20080914172404] [Introduce an 'ExceptionMonad' class. Thomas Schilling **20080914172154 This monad provides variants of 'catch', 'bracket', and 'finally', so exceptions can be handled in monads that wrap IO. The latter two methods need to be part of the class definition, because GHC uses 'block' and 'unblock' which are used in the definition of those two methods for the IO monad. A perhaps better class interface would consist of 'gcatch', 'gblock', and 'gunblock' and let the latter two default to 'id' like is done for non-GHC implementations of 'bracket' and 'finally'. ] [Provide default MonadIO instance for IO. Thomas Schilling **20080914164245] [Return instead of print warnings and errors in desugarer. Thomas Schilling **20080914163641] [Return parser errors and warnings instead of dying. Thomas Schilling **20080914162644] [Add aliases for bags of warnings and errors. Thomas Schilling **20080914160337] [Slightly more helpful panic message in DynFlags Tim Chevalier **20080915080650] [Comments only: ".core" => ".hcr" Tim Chevalier **20080914203645] [We need to tell ghc-pkg to --force if we've only built a profiling library Ian Lynagh **20080913153142] [If we're profiling GHC, don't bother building the GHC package the vanilla way Ian Lynagh **20080913144820] [Remove the duplicate show rule in libraries/Makefile Ian Lynagh **20080913144413] [Move the "show" target from target.mk to boilerplate.mk Ian Lynagh **20080913141312 target.mk isn't included everywhere, but show is always handy ] [Change how we detect if we are using the bootstrapping compiler or not Ian Lynagh **20080913104658 I think looking for $(GHC_COMPILER_DIR_ABS) was failing on the Windows buildbot due to different path separators. Now we just look for "inplace". ] [wibble the distrib Makefile Ian Lynagh **20080912135932 We now need to install driver after ghc ] [Reinstate the driver/ghc directory, to create a versioned GHC program Ian Lynagh **20080912113619 e.g. $(bindir)/ghc-6.9.20080911 ] [If USE_NEW_MKDEPEND_FLAGS is YES then don't use the deprecated -optdep flags Ian Lynagh **20080912110316] [Use --force-local when calling tar in bindisttest/ Ian Lynagh **20080912012855 Otherwise it thinks that c:/foo is a remote file ] [Fix #2586, bug in THUNK_SELECTORs (again) Simon Marlow **20080912130404 This time, we had forgetten the write barrier in one place. ] [TAG 2008-09-12 2 Ian Lynagh **20080912132848] Patch bundle hash: 3c3919626714dfd28b1cf2536f392c12317adba7