packages/base.git
10 years agoAllow System.Posix.Internals to compile with nhc98 again.
Malcolm.Wallace@cs.york.ac.uk [Mon, 15 Jun 2009 15:52:49 +0000 (15:52 +0000)] 
Allow System.Posix.Internals to compile with nhc98 again.
Also affects GHC.IO.Device, which is not very GHC-specific at all.

10 years agoAdd iconv as an extra library on platform that need to link with it
Ian Lynagh [Fri, 12 Jun 2009 23:13:07 +0000 (23:13 +0000)] 
Add iconv as an extra library on platform that need to link with it
For example, we need -liconv on OS X.

10 years agoRewrite of the IO library, including Unicode support
Simon Marlow [Fri, 12 Jun 2009 13:56:31 +0000 (13:56 +0000)] 
Rewrite of the IO library, including Unicode support

Highlights:

* Unicode support for Handle I/O:

  ** Automatic encoding and decoding using a per-Handle encoding.

  ** The encoding defaults to the locale encoding (only on Unix
     so far, perhaps Windows later).

  ** Built-in UTF-8, UTF-16 (BE/LE), and UTF-32 (BE/LE) codecs.

  ** iconv-based codec for other encodings on Unix

* Modularity: the low-level IO interface is exposed as a type class
  (GHC.IO.IODevice) so you can build your own low-level IO providers and
  make Handles from them.

* Newline translation: instead of being Windows-specific wired-in
  magic, the translation from \r\n -> \n and back again is available
  on all platforms and is configurable for reading/writing
  independently.

Unicode-aware Handles
~~~~~~~~~~~~~~~~~~~~~

This is a significant restructuring of the Handle implementation with
the primary goal of supporting Unicode character encodings.

The only change to the existing behaviour is that by default, text IO
is done in the prevailing locale encoding of the system (except on
Windows [1]).

Handles created by openBinaryFile use the Latin-1 encoding, as do
Handles placed in binary mode using hSetBinaryMode.

We provide a way to change the encoding for an existing Handle:

   GHC.IO.Handle.hSetEncoding :: Handle -> TextEncoding -> IO ()

and various encodings (from GHC.IO.Encoding):

   latin1,
   utf8,
   utf16, utf16le, utf16be,
   utf32, utf32le, utf32be,
   localeEncoding,

and a way to lookup other encodings:

   GHC.IO.Encoding.mkTextEncoding :: String -> IO TextEncoding

(it's system-dependent whether the requested encoding will be
available).

We may want to export these from somewhere more permanent; that's a
topic for a future library proposal.

Thanks to suggestions from Duncan Coutts, it's possible to call
hSetEncoding even on buffered read Handles, and the right thing
happens.  So we can read from text streams that include multiple
encodings, such as an HTTP response or email message, without having
to turn buffering off (though there is a penalty for switching
encodings on a buffered Handle, as the IO system has to do some
re-decoding to figure out where it should start reading from again).

If there is a decoding error, it is reported when an attempt is made
to read the offending character from the Handle, as you would expect.

Performance varies.  For "hGetContents >>= putStr" I found the new
library was faster on my x86_64 machine, but slower on an x86.  On the
whole I'd expect things to be a bit slower due to the extra
decoding/encoding, but probabaly not noticeably.  If performance is
critical for your app, then you should be using bytestring and text
anyway.

[1] Note: locale encoding is not currently implemented on Windows due
to the built-in Win32 APIs for encoding/decoding not being sufficient
for our purposes.  Ask me for details.  Offers of help gratefully
accepted.

Newline Translation
~~~~~~~~~~~~~~~~~~~

In the old IO library, text-mode Handles on Windows had automatic
translation from \r\n -> \n on input, and the opposite on output.  It
was implemented using the underlying CRT functions, which meant that
there were certain odd restrictions, such as read/write text handles
needing to be unbuffered, and seeking not working at all on text
Handles.

In the rewrite, newline translation is now implemented in the upper
layers, as it needs to be since we have to perform Unicode decoding
before newline translation.  This means that it is now available on
all platforms, which can be quite handy for writing portable code.

For now, I have left the behaviour as it was, namely \r\n -> \n on
Windows, and no translation on Unix.  However, another reasonable
default (similar to what Python does) would be to do \r\n -> \n on
input, and convert to the platform-native representation (either \r\n
or \n) on output.  This is called universalNewlineMode (below).

The API is as follows.  (available from GHC.IO.Handle for now, again
this is something we will probably want to try to get into System.IO
at some point):

-- | The representation of a newline in the external file or stream.
data Newline = LF    -- ^ "\n"
             | CRLF  -- ^ "\r\n"
             deriving Eq

-- | Specifies the translation, if any, of newline characters between
-- internal Strings and the external file or stream.  Haskell Strings
-- are assumed to represent newlines with the '\n' character; the
-- newline mode specifies how to translate '\n' on output, and what to
-- translate into '\n' on input.
data NewlineMode
  = NewlineMode { inputNL :: Newline,
                    -- ^ the representation of newlines on input
                  outputNL :: Newline
                    -- ^ the representation of newlines on output
                 }
             deriving Eq

-- | The native newline representation for the current platform
nativeNewline :: Newline

-- | Map "\r\n" into "\n" on input, and "\n" to the native newline
-- represetnation on output.  This mode can be used on any platform, and
-- works with text files using any newline convention.  The downside is
-- that @readFile a >>= writeFile b@ might yield a different file.
universalNewlineMode :: NewlineMode
universalNewlineMode  = NewlineMode { inputNL  = CRLF,
                                      outputNL = nativeNewline }

-- | Use the native newline representation on both input and output
nativeNewlineMode    :: NewlineMode
nativeNewlineMode     = NewlineMode { inputNL  = nativeNewline,
                                      outputNL = nativeNewline }

-- | Do no newline translation at all.
noNewlineTranslation :: NewlineMode
noNewlineTranslation  = NewlineMode { inputNL  = LF, outputNL = LF }

-- | Change the newline translation mode on the Handle.
hSetNewlineMode :: Handle -> NewlineMode -> IO ()

IO Devices
~~~~~~~~~~

The major change here is that the implementation of the Handle
operations is separated from the underlying IO device, using type
classes.  File descriptors are just one IO provider; I have also
implemented memory-mapped files (good for random-access read/write)
and a Handle that pipes output to a Chan (useful for testing code that
writes to a Handle).  New kinds of Handle can be implemented outside
the base package, for instance someone could write bytestringToHandle.
A Handle is made using mkFileHandle:

-- | makes a new 'Handle'
mkFileHandle :: (IODevice dev, BufferedIO dev, Typeable dev)
              => dev -- ^ the underlying IO device, which must support
                     -- 'IODevice', 'BufferedIO' and 'Typeable'
              -> FilePath
                     -- ^ a string describing the 'Handle', e.g. the file
                     -- path for a file.  Used in error messages.
              -> IOMode
                     -- ^ The mode in which the 'Handle' is to be used
              -> Maybe TextEncoding
                     -- ^ text encoding to use, if any
              -> NewlineMode
                     -- ^ newline translation mode
              -> IO Handle

This also means that someone can write a completely new IO
implementation on Windows based on native Win32 HANDLEs, and
distribute it as a separate package (I really hope somebody does
this!).

This restructuring isn't as radical as previous designs.  I haven't
made any attempt to make a separate binary I/O layer, for example
(although hGetBuf/hPutBuf do bypass the text encoding and newline
translation).  The main goal here was to get Unicode support in, and
to allow others to experiment with making new kinds of Handle.  We
could split up the layers further later.

API changes and Module structure
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

NB. GHC.IOBase and GHC.Handle are now DEPRECATED (they are still
present, but are just re-exporting things from other modules now).
For 6.12 we'll want to bump base to version 5 and add a base4-compat.
For now I'm using #if __GLASGOW_HASKEL__ >= 611 to avoid deprecated
warnings.

I split modules into smaller parts in many places.  For example, we
now have GHC.IORef, GHC.MVar and GHC.IOArray containing the
implementations of IORef, MVar and IOArray respectively.  This was
necessary for untangling dependencies, but it also makes things easier
to follow.

The new module structurue for the IO-relatied parts of the base
package is:

GHC.IO
   Implementation of the IO monad; unsafe*; throw/catch

GHC.IO.IOMode
   The IOMode type

GHC.IO.Buffer
   Buffers and operations on them

GHC.IO.Device
   The IODevice and RawIO classes.

GHC.IO.BufferedIO
   The BufferedIO class.

GHC.IO.FD
   The FD type, with instances of IODevice, RawIO and BufferedIO.

GHC.IO.Exception
   IO-related Exceptions

GHC.IO.Encoding
   The TextEncoding type; built-in TextEncodings; mkTextEncoding

GHC.IO.Encoding.Types
GHC.IO.Encoding.Iconv
GHC.IO.Encoding.Latin1
GHC.IO.Encoding.UTF8
GHC.IO.Encoding.UTF16
GHC.IO.Encoding.UTF32
   Implementation internals for GHC.IO.Encoding

GHC.IO.Handle
   The main API for GHC's Handle implementation, provides all the Handle
   operations + mkFileHandle + hSetEncoding.

GHC.IO.Handle.Types
GHC.IO.Handle.Internals
GHC.IO.Handle.Text
   Implementation of Handles and operations.

GHC.IO.Handle.FD
   Parts of the Handle API implemented by file-descriptors: openFile,
   stdin, stdout, stderr, fdToHandle etc.

10 years agoRemove unused foreign imports of __encodeFloat/Double
Duncan Coutts [Thu, 11 Jun 2009 16:01:00 +0000 (16:01 +0000)] 
Remove unused foreign imports of __encodeFloat/Double

10 years agonhc98 must build dirUtils.c as well.
Malcolm.Wallace@cs.york.ac.uk [Fri, 5 Jun 2009 09:17:30 +0000 (09:17 +0000)] 
nhc98 must build dirUtils.c as well.
Fixes this bootstrapping error:
  Undefined symbols:
  "___hscore_readdir", referenced from:
      _FR_System_46Posix_46Internals_46readdir_35 in libHSbase.a(Internals.o)

10 years agoRemove unnecessary parens
Ian Lynagh [Tue, 2 Jun 2009 18:36:08 +0000 (18:36 +0000)] 
Remove unnecessary parens

10 years agoFix validate (on Windows)
Simon Marlow [Fri, 29 May 2009 13:02:14 +0000 (13:02 +0000)] 
Fix validate (on Windows)

10 years agoMake two type defaults explicit
simonpj@microsoft.com [Fri, 29 May 2009 08:35:49 +0000 (08:35 +0000)] 
Make two type defaults explicit

Now that -Werror rejects programs that use silent type-class defaulting,
we must commit in the source code.

I've used Double in CPUTime, which is the same as was picked automatically
before, but I expect Float would be ok.

   realToInteger :: Real a => a -> Integer
   realToInteger ct = round (realToFrac ct :: Double)

In GHC.Float I used Float (rather that than the auto-picked Double)
because I'm pretty certain it has enough precision.

-- f :: Integer, log :: Float -> Float,
        --               ceiling :: Float -> Int
        ceiling ((log (fromInteger (f+1) :: Float) +

10 years agoFix #3257: document that exitWith in a forkIO'd thread does not exit the process
Simon Marlow [Thu, 28 May 2009 12:37:38 +0000 (12:37 +0000)] 
Fix #3257: document that exitWith in a forkIO'd thread does not exit the process

10 years agoIncrease the version number to that in the 6.10 branch
Ian Lynagh [Sun, 24 May 2009 15:56:10 +0000 (15:56 +0000)] 
Increase the version number to that in the 6.10 branch

10 years agoFix warnings
Ian Lynagh [Sat, 23 May 2009 22:45:08 +0000 (22:45 +0000)] 
Fix warnings

10 years agoDocument that the initial quantity for QSem and QSemN must be >= 0
Ian Lynagh [Sat, 23 May 2009 20:02:38 +0000 (20:02 +0000)] 
Document that the initial quantity for QSem and QSemN must be >= 0

10 years agoadd _O_NOINHERIT when opening files on Windows (see #2650)
Simon Marlow [Wed, 20 May 2009 13:09:26 +0000 (13:09 +0000)] 
add _O_NOINHERIT when opening files on Windows (see #2650)

10 years agoremove msvcrt and kernel32 from extra-libraries
Simon Marlow [Wed, 20 May 2009 11:16:26 +0000 (11:16 +0000)] 
remove msvcrt and kernel32 from extra-libraries

10 years agoAdd wrappers around fcntl
Ian Lynagh [Wed, 20 May 2009 17:53:58 +0000 (17:53 +0000)] 
Add wrappers around fcntl
We need to do this as it has a (, ...) type, which we aren't allowed to
directly call with the FFI.

10 years agoAdd more bang patterns, needed to fix the 32bit build
Ian Lynagh [Fri, 24 Apr 2009 16:07:01 +0000 (16:07 +0000)] 
Add more bang patterns, needed to fix the 32bit build

10 years agoUse a bang pattern when we where/let-bind values with unlifted types
Ian Lynagh [Fri, 24 Apr 2009 12:53:20 +0000 (12:53 +0000)] 
Use a bang pattern when we where/let-bind values with unlifted types

10 years agoFIX #3171: make sure we have only one table of signal handlers
Simon Marlow [Thu, 23 Apr 2009 11:28:37 +0000 (11:28 +0000)] 
FIX #3171: make sure we have only one table of signal handlers

10 years agoFix QSem and QSemN: Initial amount must be non-negative
Ian Lynagh [Fri, 10 Apr 2009 16:40:13 +0000 (16:40 +0000)] 
Fix QSem and QSemN: Initial amount must be non-negative

10 years agoDon't inline enumDeltaToInteger until its rules have had a chance to fire
simonpj@microsoft.com [Fri, 3 Apr 2009 09:17:50 +0000 (09:17 +0000)] 
Don't inline enumDeltaToInteger until its rules have had a chance to fire

10 years agoImport GHC.Err so we see bottoming functions properly
simonpj@microsoft.com [Fri, 3 Apr 2009 09:11:18 +0000 (09:11 +0000)] 
Import GHC.Err so we see bottoming functions properly

Before this patch, GHC/Err.lhs-boot exported divZeroError and overflowError,
as well as plain 'error'.  The latter has a wired-in defn in GHC (MkId.lhs),
but the former two do not.  As a result GHC doesn't see that overflowError
is a bottoming function at a crucial moment when compiling GHC.Real, and
that means that divMod wasn't getting the CPR property.

The fix is easy:
  - GHC/Err.lhs-boot should export only 'error'

  - GHC.Real, GHC.Int, and GHC.Word should import GHC.Err
    directly.  They can do this nowadays without creating
    a module loop, thanks to the new exception story

10 years agoDon't inline unpackCString
simonpj@microsoft.com [Fri, 3 Apr 2009 09:08:44 +0000 (09:08 +0000)] 
Don't inline unpackCString

There's no point in inlining unpackCString, so this patch adds a
NOINLINE pragma.  (Otherwise, it's just on the threshold.)

10 years agobe sure to install Nhc98BaseConfig.h
Malcolm.Wallace@cs.york.ac.uk [Wed, 1 Apr 2009 12:20:28 +0000 (12:20 +0000)] 
be sure to install Nhc98BaseConfig.h

10 years agoAvoid unnecessarily using Integer when decoding Floats
Ian Lynagh [Mon, 30 Mar 2009 22:52:41 +0000 (22:52 +0000)] 
Avoid unnecessarily using Integer when decoding Floats

10 years agoAdd another Data.List.intersect example from Christian Maeder
Ian Lynagh [Fri, 27 Mar 2009 23:21:18 +0000 (23:21 +0000)] 
Add another Data.List.intersect example from Christian Maeder

10 years agoRemove some redundant fromInteger's
Ian Lynagh [Tue, 24 Mar 2009 14:53:25 +0000 (14:53 +0000)] 
Remove some redundant fromInteger's

10 years agoAdd an import needed in the new build system
Ian Lynagh [Sun, 22 Mar 2009 16:22:41 +0000 (16:22 +0000)] 
Add an import needed in the new build system

10 years agoghcconfig.h is __GLASGOW_HASKELL__ only
Malcolm.Wallace@cs.york.ac.uk [Mon, 16 Mar 2009 13:45:32 +0000 (13:45 +0000)] 
ghcconfig.h is __GLASGOW_HASKELL__ only

10 years agoFix layout to comply with H'98.
Malcolm.Wallace@cs.york.ac.uk [Mon, 16 Mar 2009 12:56:51 +0000 (12:56 +0000)] 
Fix layout to comply with H'98.
Also, configure correctly for nhc98, to avoid win32 code.

10 years agoFIX #2189: re-enabled cooked mode for Console-connected Handles on Windows
Simon Marlow [Thu, 5 Mar 2009 11:33:23 +0000 (11:33 +0000)] 
FIX #2189: re-enabled cooked mode for Console-connected Handles on Windows
Patch from Sigbjorn Finne <sof@galois.com>

10 years agoavoid a space leak building up in the "prodding" IORef (part of #2992)
Simon Marlow [Wed, 11 Mar 2009 09:39:38 +0000 (09:39 +0000)] 
avoid a space leak building up in the "prodding" IORef (part of #2992)

10 years agoPartial fix for #2917
Simon Marlow [Thu, 5 Mar 2009 15:41:53 +0000 (15:41 +0000)] 
Partial fix for #2917

 - add newAlignedPinnedByteArray# for allocating pinned BAs with
   arbitrary alignment

 - the old newPinnedByteArray# now aligns to 16 bytes

Foreign.alloca will use newAlignedPinnedByteArray#, and so might end
up wasting less space than before (we used to align to 8 by default).
Foreign.allocaBytes and Foreign.mallocForeignPtrBytes will get 16-byte
aligned memory, which is enough to avoid problems with SSE
instructions on x86, for example.

There was a bug in the old newPinnedByteArray#: it aligned to 8 bytes,
but would have failed if the header was not a multiple of 8
(fortunately it always was, even with profiling).  Also we
occasionally wasted some space unnecessarily due to alignment in
allocatePinned().

I haven't done anything about Foreign.malloc/mallocBytes, which will
give you the same alignment guarantees as malloc() (8 bytes on
Linux/x86 here).

10 years agoAdd config.guess, config.sub and install-sh
Ian Lynagh [Sat, 7 Mar 2009 15:38:31 +0000 (15:38 +0000)] 
Add config.guess, config.sub and install-sh

10 years agoadd final newline; fix build (on Windows?)
Simon Marlow [Thu, 5 Mar 2009 12:04:26 +0000 (12:04 +0000)] 
add final newline; fix build (on Windows?)

10 years agoFIX #2189: re-enabled cooked mode for Console-connected Handles on Windows
Simon Marlow [Thu, 5 Mar 2009 11:33:23 +0000 (11:33 +0000)] 
FIX #2189: re-enabled cooked mode for Console-connected Handles on Windows
Patch from Sigbjorn Finne <sof@galois.com>

10 years agoRules to make genericLength strict for Int/Integer lengths, see #2962
naur@post11.tele.dk [Sat, 7 Feb 2009 18:14:27 +0000 (18:14 +0000)] 
Rules to make genericLength strict for Int/Integer lengths, see #2962

10 years ago#2759: Amend previous patch
Jose Pedro Magalhaes [Thu, 12 Feb 2009 13:23:27 +0000 (13:23 +0000)] 
#2759: Amend previous patch

10 years agoifdef out the definition of setCloseOnExec on Windows; fixes the build
Ian Lynagh [Fri, 20 Feb 2009 17:30:41 +0000 (17:30 +0000)] 
ifdef out the definition of setCloseOnExec on Windows; fixes the build

10 years agoFix warnings: put imports inside ifdefs
Ian Lynagh [Fri, 20 Feb 2009 17:39:41 +0000 (17:39 +0000)] 
Fix warnings: put imports inside ifdefs

10 years agoifdef out the syncIOManager export on Windows; fixes the build
Ian Lynagh [Fri, 20 Feb 2009 17:34:14 +0000 (17:34 +0000)] 
ifdef out the syncIOManager export on Windows; fixes the build

10 years agoSet the IO manager pipe descriptors to FD_CLOEXEC
Simon Marlow [Thu, 19 Feb 2009 11:42:17 +0000 (11:42 +0000)] 
Set the IO manager pipe descriptors to FD_CLOEXEC
This pipe is an internal implementation detail, we don't really want
it to be exposed.

10 years agoRewrite of signal-handling (base patch; see also ghc and unix patches)
Simon Marlow [Thu, 19 Feb 2009 10:22:03 +0000 (10:22 +0000)] 
Rewrite of signal-handling (base patch; see also ghc and unix patches)

The API is the same (for now).  The new implementation has the
capability to define signal handlers that have access to the siginfo
of the signal (#592), but this functionality is not exposed in this
patch.

#2451 is the ticket for the new API.

The main purpose of bringing this in now is to fix race conditions in
the old signal handling code (#2858).  Later we can enable the new
API in the HEAD.

Implementation differences:

 - More of the signal-handling is moved into Haskell.  We store the
   table of signal handlers in an MVar, rather than having a table of
   StablePtrs in the RTS.

 - In the threaded RTS, the siginfo of the signal is passed down the
   pipe to the IO manager thread, which manages the business of
   starting up new signal handler threads.  In the non-threaded RTS,
   the siginfo of caught signals is stored in the RTS, and the
   scheduler starts new signal handler threads.

10 years agoFix #2971: we had lost the non-blocking flag on Handles created by openFile
Simon Marlow [Fri, 6 Feb 2009 16:59:12 +0000 (16:59 +0000)] 
Fix #2971: we had lost the non-blocking flag on Handles created by openFile
This code is a mess, fortunately the new IO library cleans it up.

10 years agoadd some rules of thumb for catching exceptions, restructure the docs a bit
Simon Marlow [Thu, 5 Feb 2009 15:06:42 +0000 (15:06 +0000)] 
add some rules of thumb for catching exceptions, restructure the docs a bit

10 years agoimplement System.IO.Error more fully for nhc98
Malcolm.Wallace@cs.york.ac.uk [Fri, 6 Feb 2009 17:33:14 +0000 (17:33 +0000)] 
implement System.IO.Error more fully for nhc98

10 years agoMake System.Posix.Internals buildable by nhc98.
Malcolm.Wallace@cs.york.ac.uk [Fri, 6 Feb 2009 11:11:52 +0000 (11:11 +0000)] 
Make System.Posix.Internals buildable by nhc98.

10 years agoFix #2903: ensure CWStringLen contains the length of the array rather than the String
Ross Paterson [Tue, 3 Feb 2009 01:10:26 +0000 (01:10 +0000)] 
Fix #2903: ensure CWStringLen contains the length of the array rather than the String

10 years agoOldException catches unknown exceptions as DynException
Ian Lynagh [Mon, 2 Feb 2009 15:18:56 +0000 (15:18 +0000)] 
OldException catches unknown exceptions as DynException
It's important that we put all exceptions into the old Exception
type somehow, or throwing a new exception wouldn't cause the
cleanup code for bracket, finally etc to happen.

10 years agoUpdate the Exception docs
Ian Lynagh [Sat, 31 Jan 2009 20:48:45 +0000 (20:48 +0000)] 
Update the Exception docs

10 years agoRequire Cabal version >= 1.6
Ian Lynagh [Thu, 22 Jan 2009 01:12:51 +0000 (01:12 +0000)] 
Require Cabal version >= 1.6

10 years agoAdd "bug-reports" and "source-repository" info to the Cabal file
Ian Lynagh [Wed, 21 Jan 2009 18:20:10 +0000 (18:20 +0000)] 
Add "bug-reports" and "source-repository" info to the Cabal file

10 years agoProposal #2875: remove StringRep and StringConstr
Jose Pedro Magalhaes [Fri, 16 Jan 2009 14:26:17 +0000 (14:26 +0000)] 
Proposal #2875: remove StringRep and StringConstr

10 years agoFix #2759: add mkRealConstr and mkIntegralConstr, deprecate mkFloatConstr and mkIntConstr
Jose Pedro Magalhaes [Fri, 16 Jan 2009 14:06:55 +0000 (14:06 +0000)] 
Fix #2759: add mkRealConstr and mkIntegralConstr, deprecate mkFloatConstr and mkIntConstr

11 years agoCorrect SYB's representation of Char
Jose Pedro Magalhaes [Thu, 11 Dec 2008 14:47:16 +0000 (14:47 +0000)] 
Correct SYB's representation of Char

10 years agoavoid `mappend` in monoid laws, because it doesn't work with haddock
Ross Paterson [Sun, 18 Jan 2009 01:15:08 +0000 (01:15 +0000)] 
avoid `mappend` in monoid laws, because it doesn't work with haddock

10 years agoMake Data.Typeable imports and exports more explicit
Ian Lynagh [Wed, 14 Jan 2009 23:45:12 +0000 (23:45 +0000)] 
Make Data.Typeable imports and exports more explicit

10 years agoadd Monoid laws
Ross Paterson [Fri, 16 Jan 2009 15:16:24 +0000 (15:16 +0000)] 
add Monoid laws

10 years agoUnbreak an import cycle caused by moving 'catch' definitions around.
Malcolm.Wallace@cs.york.ac.uk [Fri, 16 Jan 2009 11:01:32 +0000 (11:01 +0000)] 
Unbreak an import cycle caused by moving 'catch' definitions around.
The new cycle was introduced for nhc98 only.

10 years agomake the Monoid docs more self-contained
Ross Paterson [Thu, 15 Jan 2009 22:24:41 +0000 (22:24 +0000)] 
make the Monoid docs more self-contained

10 years agoMove some catch definitions around to avoid an import loop
Ian Lynagh [Wed, 14 Jan 2009 21:10:33 +0000 (21:10 +0000)] 
Move some catch definitions around to avoid an import loop
As suggested by simonpj in trac #2822.

10 years agoAdd NoImplicitPrelude to the extensions used when building with GHC
Ian Lynagh [Wed, 14 Jan 2009 20:28:10 +0000 (20:28 +0000)] 
Add NoImplicitPrelude to the extensions used when building with GHC

10 years ago#2699: exit silently for EPIPE on stdout
Simon Marlow [Wed, 14 Jan 2009 13:46:12 +0000 (13:46 +0000)] 
#2699: exit silently for EPIPE on stdout

10 years agoFix build when we have HTYPE_TCFLAG_T
Ian Lynagh [Mon, 5 Jan 2009 10:20:20 +0000 (10:20 +0000)] 
Fix build when we have HTYPE_TCFLAG_T

10 years agoFix the build on Windows
Ian Lynagh [Mon, 5 Jan 2009 01:46:25 +0000 (01:46 +0000)] 
Fix the build on Windows

10 years agoAdd errno to the IOError type
Ian Lynagh [Sun, 4 Jan 2009 17:30:18 +0000 (17:30 +0000)] 
Add errno to the IOError type

10 years agoFix typo (reqwests -> requests); trac #2908, spotted by bancroft
Ian Lynagh [Sun, 4 Jan 2009 15:44:05 +0000 (15:44 +0000)] 
Fix typo (reqwests -> requests); trac #2908, spotted by bancroft

10 years agoMore compact error messages for record selectors
simonpj@microsoft.com [Fri, 2 Jan 2009 14:53:25 +0000 (14:53 +0000)] 
More compact error messages for record selectors

Make recSelError generate the standard part of the record selector
error message (i.e. "No match in record selector") rather than have
that string duplicated for every record selector.

10 years agoextra dependencies for the new build system
Simon Marlow [Wed, 17 Dec 2008 10:46:55 +0000 (10:46 +0000)] 
extra dependencies for the new build system

10 years agowarning fix: don't use -XPatternSignatures in GHC >= 6.10
Simon Marlow [Wed, 17 Dec 2008 10:46:37 +0000 (10:46 +0000)] 
warning fix: don't use -XPatternSignatures in GHC >= 6.10

10 years agoRollback INLINE patches
Simon Marlow [Tue, 16 Dec 2008 10:41:43 +0000 (10:41 +0000)] 
Rollback INLINE patches

rolling back:

Fri Dec  5 17:00:15 GMT 2008  simonpj@microsoft.com
  * Update INLINE pragmas for new INLINE story

  - (.) and foldr should inline when applied to only two arguments
  - Make unpackCString# NOINLINE; it inlines too much (with little gain)

    M ./GHC/Base.lhs -10 +31

11 years agoFIX #1364: added support for C finalizers that run as soon as the value is no longer...
Ivan Tomac [Wed, 10 Dec 2008 15:05:10 +0000 (15:05 +0000)] 
FIX #1364: added support for C finalizers that run as soon as the value is no longer reachable.

Patch amended by Simon Marlow:
  - mkWeakFinalizer# commoned up with mkWeakFinalizerEnv#

11 years agoFix #2760: deprecate mkNorepType, add mkNoRepType
Jose Pedro Magalhaes [Fri, 21 Nov 2008 14:19:05 +0000 (14:19 +0000)] 
Fix #2760: deprecate mkNorepType, add mkNoRepType

11 years agoUpdate INLINE pragmas for new INLINE story
simonpj@microsoft.com [Fri, 5 Dec 2008 17:00:15 +0000 (17:00 +0000)] 
Update INLINE pragmas for new INLINE story

- (.) and foldr should inline when applied to only two arguments
- Make unpackCString# NOINLINE; it inlines too much (with little gain)

11 years agoFix #2750: change Prelude.(,) to Prelude.(,,)
Jose Pedro Magalhaes [Mon, 1 Dec 2008 11:34:11 +0000 (11:34 +0000)] 
Fix #2750: change Prelude.(,) to Prelude.(,,)

11 years agoFix typo (or out of date reference) in throwTo documentation.
shelarcy [Sat, 29 Nov 2008 02:46:39 +0000 (02:46 +0000)] 
Fix typo (or out of date reference) in throwTo documentation.

11 years agoAdd more description of what "round" does, from the H98 report
Ian Lynagh [Wed, 19 Nov 2008 14:31:31 +0000 (14:31 +0000)] 
Add more description of what "round" does, from the H98 report

11 years agore-instate the gcd/Integer and lcm/Integer RULES
Simon Marlow [Thu, 20 Nov 2008 10:18:26 +0000 (10:18 +0000)] 
re-instate the gcd/Integer and lcm/Integer RULES
Fixes a performance regression between 6.8.3 and 6.10.1

11 years agoChange an "undefined" into a more informative error; trac #2782
Ian Lynagh [Sun, 16 Nov 2008 16:02:28 +0000 (16:02 +0000)] 
Change an "undefined" into a more informative error; trac #2782

11 years agoupdating Haddock documentation
jpm@cs.uu.nl [Tue, 11 Nov 2008 09:50:23 +0000 (09:50 +0000)] 
updating Haddock documentation

Fixed the broken link from Data.Generics to Data.Data.

11 years agoadd GHC.Conc.runSparks (required by GHC patch "Run sparks in batches")
Simon Marlow [Thu, 6 Nov 2008 09:54:19 +0000 (09:54 +0000)] 
add GHC.Conc.runSparks (required by GHC patch "Run sparks in batches")

11 years agoFIX #2722: update RULES for the Category/Arrow split
Ross Paterson [Tue, 4 Nov 2008 14:45:15 +0000 (14:45 +0000)] 
FIX #2722: update RULES for the Category/Arrow split

The rule

arr id = id

interacts unpleasantly with the advice to define

id = arr id

in instances of Category that are also instances of Arrow (#2722).

Also changed a couple of >>>'s to .'s in later rules.

11 years agoAdd AnnotationWrapper type so GHC can capture annotation dictionaries during compilation
Max Bolingbroke [Thu, 16 Oct 2008 12:26:08 +0000 (12:26 +0000)] 
Add AnnotationWrapper type so GHC can capture annotation dictionaries during compilation

11 years agodocs about how exceptions are handled by forkIO'd threads (#2651)
Simon Marlow [Thu, 16 Oct 2008 10:04:10 +0000 (10:04 +0000)] 
docs about how exceptions are handled by forkIO'd threads (#2651)

11 years agoImport n_capabilities via import symbol when linking dynamically
Clemens Fruhwirth [Mon, 13 Oct 2008 16:12:20 +0000 (16:12 +0000)] 
Import n_capabilities via import symbol when linking dynamically

11 years agoadd link to the new syb wiki
jpm@cs.uu.nl [Mon, 13 Oct 2008 11:16:05 +0000 (11:16 +0000)] 
add link to the new syb wiki

11 years agochanging haddock links
jpm@cs.uu.nl [Fri, 10 Oct 2008 09:54:34 +0000 (09:54 +0000)] 
changing haddock links

11 years agoadd readTVarIO :: TVar a -> IO a
Simon Marlow [Fri, 10 Oct 2008 11:38:35 +0000 (11:38 +0000)] 
add readTVarIO :: TVar a -> IO a

11 years agoremoved (->) instance from Data.Data
jpm@cs.uu.nl [Mon, 6 Oct 2008 07:52:54 +0000 (07:52 +0000)] 
removed (->) instance from Data.Data

11 years agonon-GHC: delete unnecessary imports
Ross Paterson [Tue, 7 Oct 2008 13:48:09 +0000 (13:48 +0000)] 
non-GHC: delete unnecessary imports

11 years agoadded new module Data.Data
'Jose Pedro Magalhaes [Thu, 2 Oct 2008 14:05:35 +0000 (14:05 +0000)] 
added new module Data.Data

The new Data.Data module contains all of Data.Generics.Basics
and most of Data.Generics.Instances. The missing instances were
deemed dubious and moved to the syb package.

11 years agoadd new Data.Data module
'Jose Pedro Magalhaes [Thu, 2 Oct 2008 08:27:35 +0000 (08:27 +0000)] 
add new Data.Data module

11 years agorestore Complex's derived Data instance
'Jose Pedro Magalhaes [Thu, 2 Oct 2008 08:26:55 +0000 (08:26 +0000)] 
restore Complex's derived Data instance

11 years agoupdate Data.Generics import
'Jose Pedro Magalhaes [Thu, 2 Oct 2008 08:26:04 +0000 (08:26 +0000)] 
update Data.Generics import

11 years agoDon't use ^(2::Int) in Data.Complex.magnitude; partially fixes trac #2450
Ian Lynagh [Sat, 4 Oct 2008 14:26:51 +0000 (14:26 +0000)] 
Don't use ^(2::Int) in Data.Complex.magnitude; partially fixes trac #2450
We still might want to make a RULE for this, so the bug is not fully fixed.

11 years agoRestore the Haskell 98 behaviour of Show Ratio (#1920)
Simon Marlow [Tue, 23 Sep 2008 13:49:49 +0000 (13:49 +0000)] 
Restore the Haskell 98 behaviour of Show Ratio (#1920)

11 years agoPad version number to 4.0.0.0
Ian Lynagh [Sat, 20 Sep 2008 15:58:01 +0000 (15:58 +0000)] 
Pad version number to 4.0.0.0

11 years agoIn nhc98, Word is a type synonym, so class instance is not possible. 6_10_branch_has_been_forked
Malcolm.Wallace@cs.york.ac.uk [Wed, 17 Sep 2008 07:53:26 +0000 (07:53 +0000)] 
In nhc98, Word is a type synonym, so class instance is not possible.

11 years agoFix bugs in Text.Printf (#1548)
Simon Marlow [Tue, 16 Sep 2008 13:35:05 +0000 (13:35 +0000)] 
Fix bugs in Text.Printf (#1548)

11 years agoWe should be including Rts.h here, not Stg.h
Simon Marlow [Fri, 12 Sep 2008 13:49:01 +0000 (13:49 +0000)] 
We should be including Rts.h here, not Stg.h
Stg.h is for .hc files only, and it sets up various global register
variables.

11 years agoGeneric functions that take integral arguments should work the same way as their...
<unknown> [Fri, 22 Aug 2008 02:27:55 +0000 (02:27 +0000)] 
Generic functions that take integral arguments should work the same way as their prelude counterparts

The Prelude functions drop, take, and splitAt are unfailing (never call error). This patch changes the Data.List generic versions to behave the same way. At present, they call error on negative arguments.