1. 10 Mar, 2003 1 commit
  2. 07 Mar, 2003 4 commits
  3. 06 Mar, 2003 5 commits
  4. 05 Mar, 2003 1 commit
    • simonmar's avatar
      [project @ 2003-03-05 10:22:22 by simonmar] · 9a1114e3
      simonmar authored
      Duh.  hsc2hs should be in $(GhcBinDistShScripts), not
      $(GhcBinDistBins), otherwise it doesn't get the right directories
      tacked on the front at installation time.  Strange that nobody
      complained that hsc2hs wasn't working from a binary dist *shrug*.
  5. 04 Mar, 2003 3 commits
  6. 03 Mar, 2003 5 commits
    • simonmar's avatar
      [project @ 2003-03-03 12:43:31 by simonmar] · 19108ede
      simonmar authored
      A round of space-leak fixing.
        - re-instate zapping of the PersistentCompilerState at various
          points during the compilation cycle in HscMain.  This affects
          one-shot compilation only, since in this mode the information
          collected in the PCS is not required after creating the final
          interface file.
        - Unravel the recursive dependency between MkIface and
          CoreTidy/CoreToStg.  Previously the CafInfo for each binding was
          calculated by CoreToStg, and fed back into the IdInfo of the Ids
          generated by CoreTidy (an earlier pass).  MkIface then took this
          IdInfo and the bindings from CoreTidy to generate the interface;
          but it couldn't do this until *after* CoreToStg, because the CafInfo
          hadn't been calculated yet.  The result was that the CoreTidy
          output lived until after CoreToStg, and at the same time as the
          CorePrep and STG syntax, which is wasted space, not to mention
          the complexity and general ugliness in HscMain.
          So now we calculate CafInfo directly in CoreTidy.  The downside is
          that we have to predict what CorePrep is going to do to the
          bindings so we can tell what will turn into a CAF later, but it's
          no worse than before (it turned out that we were doing this
          prediction before in CoreToStg anyhow).
        - The typechecker lazilly typechecks unfoldings.  It turns out that
          this is a good idea from a performance perspective, but it also
          means that it must hang on to all the information it needs to
          do the typechecking.  Previously this meant holding on to the
          whole of the typechecker's environment, which includes all sorts
          of stuff which isn't necessary to typecheck unfoldings.  By paring
          down the environment captured by the lazy unfoldings, we can
          save quite a bit of space in the phases after typechecking.
    • simonmar's avatar
      [project @ 2003-03-03 12:31:55 by simonmar] · 1b2e253b
      simonmar authored
      Use listArray rather than array in (un)?boxedTupleArr.
    • simonmar's avatar
      [project @ 2003-03-03 12:30:59 by simonmar] · 4ce67061
      simonmar authored
      Remove unused export.
    • simonmar's avatar
      [project @ 2003-03-03 12:30:39 by simonmar] · eb2c5629
      simonmar authored
      underscore some variables that aren't used.
    • simonmar's avatar
      [project @ 2003-03-03 12:30:11 by simonmar] · ac04a368
      simonmar authored
      Compilation fix after recent addition of environment stuff to System.Posix.
  7. 26 Feb, 2003 1 commit
    • simonpj's avatar
      [project @ 2003-02-26 17:04:11 by simonpj] · c86e9006
      simonpj authored
      	Improve higher-rank type inference
      Yanling Wang pointed out that if we have
      	f = \ (x :: forall a. a->a). x
      it would be reasonable to expect that type inference would get the "right"
      rank-2 type for f.  She also found that the plausible definition
      	f :: (forall a. a->a) = \x -> x
      acutally failed to type check.
      This commit fixes up TcBinds.tcMonoBinds so that it does a better job.
      The main idea is that there are three cases to consider in a function binding:
        a) 'f' has a separate type signature
      	In this case, we know f's type everywhere
        b) The binding is recursive, and there is no type sig
      	In this case we must give f a monotype in its RHS
        c) The binding is non-recursive, and there is no type sig
      	Then we do not need to add 'f' to the envt, and can
      	simply infer a type for the RHS, which may be higher
  8. 24 Feb, 2003 2 commits
    • simonmar's avatar
      [project @ 2003-02-24 13:12:08 by simonmar] · c68c1f2e
      simonmar authored
      Remove mention of man pages, which we don't have, and clarify a couple
      of other things while I'm here.
    • simonpj's avatar
      [project @ 2003-02-24 12:39:24 by simonpj] · 395917a0
      simonpj authored
      Three Template Haskell improvements
      a) Add type synonyms to THSyntax (and DsMeta, Convert)
      b) Make Q into a newtype instead of a type synonym
      c) Eliminate tiresome and error prone argument to DsMeta.wrapGenSyms
         and similarly addTyVarBinds
  9. 22 Feb, 2003 2 commits
    • sof's avatar
      [project @ 2003-02-22 06:13:41 by sof] · 384d5bcf
      sof authored
      bring getourtimeofday() proto into scope
    • sof's avatar
      [project @ 2003-02-22 04:51:50 by sof] · 557947d3
      sof authored
      Clean up code&interfaces that deals with timers and asynchrony:
      - Timer.{c,h} now defines the platform-independent interface
        to the timing services needed by the RTS. Itimer.{c,h} +
        win32/Ticker.{c,h} defines the OS-specific services that
        creates/destroys a timer.
      - For win32 plats, drop the long-standing use of the 'multimedia'
        API timers and implement the ticking service ourselves. Simpler
        and more flexible.
      - Select.c is now solely for platforms that use select() to handle
        non-blocking I/O & thread delays. win32/AwaitEvent.c provides
        the same API on the Win32 side.
      - support threadDelay on win32 platforms via worker threads.
      Not yet compiled up on non-win32 platforms; will do once checked in.
  10. 21 Feb, 2003 15 commits
    • simonpj's avatar
      [project @ 2003-02-21 14:52:54 by simonpj] · d6b7d200
      simonpj authored
    • simonpj's avatar
      [project @ 2003-02-21 14:52:31 by simonpj] · 877d4fbd
      simonpj authored
      Fix buglets in new unused-binding story
    • simonpj's avatar
      [project @ 2003-02-21 13:35:18 by simonpj] · 2565ba31
      simonpj authored
      Use old-style foreign import for bkwd compatibility
    • simonpj's avatar
      [project @ 2003-02-21 13:27:53 by simonpj] · 84ed91ab
      simonpj authored
      	Improve the "unused binding" warnings
      We've had a succession of hacks for reporting warnings for
      unused bindings.  Consider
      	module M( f ) where
       	f x = x
      	g x = g x + h x
      	h x = x
      Here, g mentions itself and h, but is not itself mentioned. So
      really both g and h are dead code.  We've been getting this wrong
      for ages, and every hack so far has failed on some simple programs.
      This commit does a much better job.  The renamer applied to a bunch
      of bindings returns a NameSet.DefUses, which is a dependency-ordered
      lists of def/use pairs.  It's documented in NameSet.
      Given this, we can work out precisely what is not used, in a nice
      tidy way.
      It's less convenient in the case of type and class declarations, because
      the strongly-connected-component analysis can span module boundaries.
      So things are pretty much as they were for these.
      As usual, there was a lot of chuffing around tidying things up.
      I havn't tested it at all thoroughly yet.
      Various unrelated import-decl-pruning has been done too.
    • simonpj's avatar
      [project @ 2003-02-21 13:27:30 by simonpj] · dfc75488
      simonpj authored
      Import pruning
    • simonpj's avatar
      [project @ 2003-02-21 13:26:58 by simonpj] · e440a5e2
      simonpj authored
      Import pruning, use mingw32_TARGET not HOST, use old-style foreign import (for 4.08 compat)
    • simonpj's avatar
      [project @ 2003-02-21 13:25:17 by simonpj] · 4e94cbc4
      simonpj authored
      Import pruning
    • simonpj's avatar
      [project @ 2003-02-21 13:24:06 by simonpj] · 6d7e43c4
      simonpj authored
      More tidy up
    • simonpj's avatar
      [project @ 2003-02-21 13:02:58 by simonpj] · 97583682
      simonpj authored
      Small fix to a TH bug; this one concerning the constraint-gathering mechanism
    • simonpj's avatar
      [project @ 2003-02-21 12:28:35 by simonpj] · 136d6345
      simonpj authored
      Another typo; sigh
    • simonpj's avatar
      [project @ 2003-02-21 12:26:41 by simonpj] · 35057005
      simonpj authored
    • simonpj's avatar
      [project @ 2003-02-21 12:16:44 by simonpj] · 802b299f
      simonpj authored
      Debugging hook jiggling
    • simonpj's avatar
      [project @ 2003-02-21 12:16:05 by simonpj] · 7e7c296a
      simonpj authored
      Fix a type-error in desugaring TH code
    • sof's avatar
      [project @ 2003-02-21 05:34:12 by sof] · 5b4f5a6a
      sof authored
      Asynchronous / non-blocking I/O for Win32 platforms.
      This commit introduces a Concurrent Haskell friendly view of I/O on
      Win32 platforms. Through the use of a pool of worker Win32 threads, CH
      threads may issue asynchronous I/O requests without blocking the
      progress of other CH threads. The issuing CH thread is blocked until
      the request has been serviced though.
      GHC.Conc exports the primops that take care of issuing the
      asynchronous I/O requests, which the IO implementation now takes
      advantage of. By default, all Handles are non-blocking/asynchronous,
      but should performance become an issue, having a per-Handle flag for
      turning off non-blocking could easily be imagined&introduced.
      [Incidentally, this thread pool-based implementation could easily be
      extended to also allow Haskell code to delegate the execution of
      arbitrary pieces of (potentially blocking) external code to another OS
      thread. Given how relatively gnarly the locking story has turned out
      to be with the 'threaded' RTS, that may not be such a bad idea.]
    • sof's avatar
      [project @ 2003-02-21 04:57:16 by sof] · e4341897
      sof authored
      deja vu all over again
  11. 20 Feb, 2003 1 commit