GitLab

Mon Sep 18 19:18:18 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Checking conformance of AT indexes with instance heads
  Wed Aug 30 20:13:52 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Checking conformance of AT indexes with instance heads

Mon Sep 18 19:17:18 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Warn of missing ATs and complain about bad ATs
  Mon Aug 28 22:26:22 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Warn of missing ATs and complain about bad ATs

Mon Sep 18 19:16:40 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Check that AT instance is in a class
  Sat Aug 26 21:49:56 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Check that AT instance is in a class

Mon Sep 18 19:13:47 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Kind sig for toplevel family decls is optional
  Sat Aug 26 19:03:50 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Kind sig for toplevel family decls is optional
    - Kind sigs are still compulsory for AT family decls.  Changing this is more 
      tricky, as AT decls don't have the family keyword and hence look like empty 
      data decls.  That impacts reduce/reduce conflicts and/or the criteria for 
      checking whether a TyData variant is a family signature.
    - Also removed iso from the syntax (it's still in the lexer in case we want to
      resurrect it). 

Mon Sep 18 19:12:51 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fixed bug in coercion for indexed data types
  Fri Aug 25 16:45:29 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fixed bug in coercion for indexed data types
    - Significant examples are starting to work; eg, generic finite maps:
    
    class GMapKey k where
      data GMap k :: * -> *
      empty       :: GMap k v
      lookup      :: k -> GMap k v -> Maybe v
      insert      :: k -> v -> GMap k v -> GMap k v
    
    instance GMapKey Int where
      data GMap Int v        = GMapInt (Map.Map Int v)
      empty                  = GMapInt Map.empty
      lookup k (GMapInt m)   = Map.lookup k m
      insert k v (GMapInt m) = GMapInt (Map.insert k v m)
    
    instance GMapKey Char where
      data GMap Char v        = GMapChar (GMap Int v)
      empty                   = GMapChar empty
      lookup k (GMapChar m)   = lookup (ord k) m
      insert k v (GMapChar m) = GMapChar (insert (ord k) v m)
    
    instance GMapKey () where
      data GMap () v           = GMapUnit (Maybe v)
      empty                    = GMapUnit Nothing
      lookup () (GMapUnit v)   = v
      insert () v (GMapUnit _) = GMapUnit $ Just v
    
    instance (GMapKey a, GMapKey b) => GMapKey (a, b) where
      data GMap (a, b) v            = GMapPair (GMap a (GMap b v))
      empty		                = GMapPair empty
      lookup (a, b) (GMapPair gm)   = lookup a gm >>= lookup b 
      insert (a, b) v (GMapPair gm) = GMapPair $ case lookup a gm of
    				    Nothing  -> insert a (insert b v empty) gm
    				    Just gm2 -> insert a (insert b v gm2  ) gm
    
    instance (GMapKey a, GMapKey b) => GMapKey (Either a b) where
      data GMap (Either a b) v                = GMapEither (GMap a v) (GMap b v)
      empty                                   = GMapEither empty empty
      lookup (Left  a) (GMapEither gm1  _gm2) = lookup a gm1
      lookup (Right b) (GMapEither _gm1 gm2 ) = lookup b gm2
      insert (Left  a) v (GMapEither gm1 gm2) = GMapEither (insert a v gm1) gm2
      insert (Right a) v (GMapEither gm1 gm2) = GMapEither gm1 (insert a v gm2)
    

Mon Sep 18 19:11:24 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Pattern matching of indexed data types
  Thu Aug 24 14:17:44 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Pattern matching of indexed data types
    - This patch is the last major puzzle piece to type check and desugar indexed 
      data types (both toplevel and associated with a class).
    - However, it needs more testing - esp wrt to accumlating CoPats - and some 
      static sanity checks for data instance declarations are still missing.
    - There are now two detailed notes in MkIds and TcPat on how the worker/wrapper
      and coercion story for indexed data types works.

Mon Sep 18 19:07:30 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Introduce coercions for data instance decls
  Tue Aug 22 20:33:46 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Introduce coercions for data instance decls
    - data instance declarations implicitly generate a coercion moving between the
      representation type and family instance type.
    - The coercion is *implicitly* generated when type checking both source and 
      ifaces.  Ie, we don't safe it in ifaces - this is really exactly as newtype 
      coercions are handled.
    - The previous addition of the instance types to DataCons has been moved to 
      the representation TyCon.  This is more efficient as it is shared between all
      constructors of one representation tycon and it also gathers everything about
      data instances (family tycon, instance types, and coercion) in one place: the
      algTcParent field of TyCon.
    - The coercion is already used in the datacon wrappers, but not yet during type
      checking pattern matching of indexed data types.
    - The code has only been lightly tested, but doesn't seem to break features not
      related to indexed types.  For indexed data types only the pattern matching
      tc code (in TcPat.tcConPat) and some well-formedness checks are still 
      missing.  And there will surely be some bugs to fix.  (newtypes still require
      some more work.)
    
    	   ** WARNING: Interface file format changed! **
    	   **          Recompile from scratch!        **

Mon Sep 18 19:06:51 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fixed two data family bugs
  Mon Aug 21 15:16:16 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fixed two data family bugs
    - Too liberal pattern matching in `tcTyClDecl1'
    - Open TyCons must always be exposed (ie, never be turned into abstract tycons
      during tidying)

Mon Sep 18 19:06:12 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fix the tyvars used for data con signatures
  Sat Aug 19 17:19:25 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fix the tyvars used for data con signatures

Mon Sep 18 19:05:18 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Extend TyCons and DataCons to represent data instance decls
  Fri Aug 18 19:11:37 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Extend TyCons and DataCons to represent data instance decls
    - This is a faily involved patch, but it is not entirely complete:
      + The data con wrapper code for instance data cons needs to apply the
        coercions (which we still have to generate).
      + There are still bugs, but it doesn't seem to affect the compilation of
        code that doesn't use type families.
    
    ** WARNING: Yet another change of the iface format.  **
    **          Recompile everything.                    **

Mon Sep 18 19:04:12 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fix TcSplice after some type family related changes
  Wed Aug 16 19:51:27 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fix TcSplice after some type family related changes

Mon Sep 18 19:03:31 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Make sure ATs are included into the temporary env for tc knot tying
  Wed Aug 16 17:52:40 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Make sure ATs are included into the temporary env for tc knot tying

Mon Sep 18 18:58:51 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Extend Class.Class to include the TyCons of ATs
  Wed Aug 16 16:15:31 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Extend Class.Class to include the TyCons of ATs

Mon Sep 18 18:58:14 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fix kind lookup in kcIdxTyPats
  Tue Aug 15 21:02:34 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fix kind lookup in kcIdxTyPats

Mon Sep 18 18:50:35 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Extended TyCon and friends to represent family declarations
  Tue Aug 15 16:52:31 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Extended TyCon and friends to represent family declarations

Mon Sep 18 18:39:03 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Kind and type checking of indexed types
  Fri Aug 11 16:09:13 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Kind and type checking of indexed types
    - Type checking of kind signatures
    - Kind and type checking of instances of indexed types
    - Validity checks for ATs are still *missing* (ie, that the type indexes 
      coincide with the class parameters and that the defined ATs really belong to
      the class).

Mon Sep 18 17:45:06 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Another comment
  Wed Aug  9 04:48:18 EDT 2006  simonpj@microsoft.com
    * Another comment

Mon Sep 18 17:44:24 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Add missing co_vars to tcIfaceDataAlt
  Wed Aug  9 04:45:33 EDT 2006  simonpj@microsoft.com
    * Add missing co_vars to tcIfaceDataAlt

Mon Sep 18 17:43:31 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Comments only
  Wed Aug  9 04:45:19 EDT 2006  simonpj@microsoft.com
    * Comments only

Mon Sep 18 17:41:37 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Small refactoring
  Wed Aug  9 04:41:54 EDT 2006  simonpj@microsoft.com
    * Small refactoring

Mon Sep 18 17:28:37 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Missing change re additional info in TcTyThing
  Mon Aug  7 14:22:08 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Missing change re additional info in TcTyThing

Mon Sep 18 17:27:42 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Complete OccName->FS change in TcIface
  Mon Aug  7 13:03:26 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Complete OccName->FS change in TcIface

Mon Sep 18 17:27:00 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Missing imports in CoreUtils
  Mon Aug  7 11:15:54 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Missing imports in CoreUtils

Mon Sep 18 17:25:23 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Removed spurious + due to manual patching
  Mon Aug  7 11:07:37 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Removed spurious + due to manual patching

Mon Sep 18 17:23:13 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Makefile comment
  Sun Aug  6 21:03:20 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Makefile comment
    Fri Aug  4 11:44:49 EDT 2006  kevind@bu.edu

Mon Sep 18 17:22:43 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fix newtype deriving bug
  Sun Aug  6 21:02:35 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fix newtype deriving bug
    Fri Aug  4 06:45:21 EDT 2006  kevind@bu.edu

Mon Sep 18 17:22:14 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Include the existential dictionaries in dataConOrigInstPat
  Sun Aug  6 20:59:00 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Include the existential dictionaries in dataConOrigInstPat
    Fri Aug  4 04:24:25 EDT 2006  simonpj@microsoft.com

Mon Sep 18 17:21:20 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Comments about datacon worker and wrappers
  Sun Aug  6 20:57:48 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Comments about datacon worker and wrappers
    Fri Aug  4 04:23:28 EDT 2006  simonpj@microsoft.com

Mon Sep 18 17:20:17 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Make newtype Coercion eta-contract if the tails of lhs and rhs match up
  Sun Aug  6 20:57:10 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Make newtype Coercion eta-contract if the tails of lhs and rhs match up
    Thu Aug  3 12:26:52 EDT 2006  kevind@bu.edu

Mon Sep 18 17:19:19 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Flip direction of newtype coercions, fix some comments
  Sun Aug  6 20:56:23 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Flip direction of newtype coercions, fix some comments
    Thu Aug  3 10:53:37 EDT 2006  kevind@bu.edu

Mon Sep 18 17:17:57 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Chagne newtype wrapper into worker
  Sun Aug  6 20:55:30 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Chagne newtype wrapper into worker
    Wed Aug  2 11:54:28 EDT 2006  kevind@bu.edu

Mon Sep 18 17:17:20 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Clean up unused imports, definitions and arguments
  Sun Aug  6 20:54:31 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Clean up unused imports, definitions and arguments
    Wed Aug  2 11:05:33 EDT 2006  kevind@bu.edu

Mon Sep 18 17:16:10 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fix assertion and default case for GADT record selectors
  Sun Aug  6 20:53:39 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fix assertion and default case for GADT record selectors
    Wed Aug  2 11:04:21 EDT 2006  kevind@bu.edu

Mon Sep 18 17:15:25 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * make dataConInstPat take a list of FastStrings rather than OccNames, remove out-of-date comment
  Sun Aug  6 20:52:24 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * make dataConInstPat take a list of FastStrings rather than OccNames, remove out-of-date comment
    Wed Aug  2 09:26:47 EDT 2006  kevind@bu.edu

Mon Sep 18 17:14:51 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Just clean-up, no functional changes
  Sun Aug  6 20:49:23 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Just clean-up, no functional changes
    Wed Aug  2 06:48:44 EDT 2006  simonpj@microsoft.com

Mon Sep 18 17:13:44 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Get rid of special case for Vanilla tycon record selectors and make uniq splitting more uniform
  Sun Aug  6 20:48:06 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Get rid of special case for Vanilla tycon record selectors and make uniq splitting more uniform
    Wed Aug  2 06:04:19 EDT 2006  kevind@bu.edu

Mon Sep 18 17:13:11 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Fix problem with selectors for GADT records with unboxed fields
  Sun Aug  6 20:47:11 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Fix problem with selectors for GADT records with unboxed fields
    Wed Aug  2 05:37:38 EDT 2006  kevind@bu.edu

Mon Sep 18 17:11:59 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Make sym coercion smart constructor smarter, add comments
  Sun Aug  6 20:32:58 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Make sym coercion smart constructor smarter, add comments
    Tue Aug  1 11:30:14 EDT 2006  kevind@bu.edu

Mon Sep 18 17:11:25 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
  * Refactoring in TcGadt
  Sun Aug  6 20:32:20 EDT 2006  Manuel M T Chakravarty <chak@cse.unsw.edu.au>
    * Refactoring in TcGadt
    Tue Aug  1 10:28:25 EDT 2006  kevind@bu.edu