\section[PrelVals]{Prelude values the compiler ``knows about''}
\begin{code}
+module PrelVals where
+
#include "HsVersions.h"
-module PrelVals where
+import {-# SOURCE #-} CoreUnfold ( mkUnfolding )
-IMP_Ubiq()
-IMPORT_DELOOPER(IdLoop) ( UnfoldingGuidance(..), nullSpecEnv, SpecEnv )
-import Id ( SYN_IE(Id), GenId, mkImported, mkUserId, mkTemplateLocals )
-IMPORT_DELOOPER(PrelLoop)
+import Id ( Id, mkVanillaId, mkTemplateLocals )
+import SpecEnv ( SpecEnv, emptySpecEnv )
-- friends:
import PrelMods
import TysWiredIn
-- others:
-import CmdLineOpts ( maybe_CompilingGhcInternals )
import CoreSyn -- quite a bit
import IdInfo -- quite a bit
-import Literal ( mkMachInt )
-import Name ( ExportFlag(..) )
-import PragmaInfo
-import PrimOp ( PrimOp(..) )
-import Type ( mkTyVarTy )
-import TyVar ( openAlphaTyVar, alphaTyVar, betaTyVar, gammaTyVar )
+import Name ( mkWiredInIdName, Module )
+import Type
+import TyVar ( openAlphaTyVar, alphaTyVar, betaTyVar, TyVar )
import Unique -- lots of *Keys
import Util ( panic )
\end{code}
\begin{code}
-- only used herein:
-pcMiscPrelId :: Unique{-IdKey-} -> FAST_STRING -> FAST_STRING -> Type -> IdInfo -> Id
-pcMiscPrelId key m n ty info
+mk_inline_unfolding expr = setUnfoldingInfo (mkUnfolding expr) $
+ setInlinePragInfo IWantToBeINLINEd noIdInfo
+
+exactArityInfo n = exactArity n `setArityInfo` noIdInfo
+
+pcMiscPrelId :: Unique{-IdKey-} -> Module -> FAST_STRING -> Type -> IdInfo -> Id
+
+pcMiscPrelId key mod occ ty info
= let
- name = mkWiredInName key (OrigName m n) ExportAll
- imp = mkImported name ty info -- the usual case...
+ name = mkWiredInIdName key mod occ imp
+ imp = mkVanillaId name ty info -- the usual case...
in
imp
-- We lie and say the thing is imported; otherwise, we get into
pc_bottoming_Id key mod name ty
= pcMiscPrelId key mod name ty bottoming_info
where
- bottoming_info = noIdInfo `addInfo` mkBottomStrictnessInfo
+ bottoming_info = mkBottomStrictnessInfo `setStrictnessInfo` noIdInfo
-- these "bottom" out, no matter what their arguments
eRROR_ID
- = pc_bottoming_Id errorIdKey pRELUDE SLIT("error") errorTy
+ = pc_bottoming_Id errorIdKey pREL_ERR SLIT("error") errorTy
generic_ERROR_ID u n
- = pc_bottoming_Id u SLIT("GHCerr") n errorTy
+ = pc_bottoming_Id u pREL_ERR n errorTy
+rEC_SEL_ERROR_ID
+ = generic_ERROR_ID recSelErrIdKey SLIT("patError")
pAT_ERROR_ID
= generic_ERROR_ID patErrorIdKey SLIT("patError")
rEC_CON_ERROR_ID
= generic_ERROR_ID irrefutPatErrorIdKey SLIT("irrefutPatError")
nON_EXHAUSTIVE_GUARDS_ERROR_ID
= generic_ERROR_ID nonExhaustiveGuardsErrorIdKey SLIT("nonExhaustiveGuardsError")
-nO_DEFAULT_METHOD_ERROR_ID
- = generic_ERROR_ID noDefaultMethodErrorIdKey SLIT("noDefaultMethodError")
-nO_EXPLICIT_METHOD_ERROR_ID
- = generic_ERROR_ID nonExplicitMethodErrorIdKey SLIT("noExplicitMethodError")
+nO_METHOD_BINDING_ERROR_ID
+ = generic_ERROR_ID noMethodBindingErrorIdKey SLIT("noMethodBindingError")
aBSENT_ERROR_ID
- = pc_bottoming_Id absentErrorIdKey SLIT("GHCerr") SLIT("absentErr")
+ = pc_bottoming_Id absentErrorIdKey pREL_ERR SLIT("absentErr")
(mkSigmaTy [openAlphaTyVar] [] openAlphaTy)
pAR_ERROR_ID
- = pcMiscPrelId parErrorIdKey SLIT("GHCerr") SLIT("parError")
+ = pcMiscPrelId parErrorIdKey pREL_ERR SLIT("parError")
(mkSigmaTy [openAlphaTyVar] [] openAlphaTy) noIdInfo
openAlphaTy = mkTyVarTy openAlphaTyVar
-- returns, so the return type is irrelevant.
\end{code}
+unsafeCoerce# isn't so much a PrimOp as a phantom identifier, that
+just gets expanded into a type coercion wherever it occurs. Hence we
+add it as a built-in Id with an unfolding here.
+
+\begin{code}
+unsafeCoerceId
+ = pcMiscPrelId unsafeCoerceIdKey pREL_GHC SLIT("unsafeCoerce#") ty
+ (mk_inline_unfolding template)
+ where
+ ty = mkForAllTys [alphaTyVar,betaTyVar] (mkFunTy alphaTy betaTy)
+ [x] = mkTemplateLocals [alphaTy]
+ template = mkLam [alphaTyVar,betaTyVar] [x] (
+ Note (Coerce betaTy alphaTy) (Var x))
+\end{code}
+
We want \tr{GHCbase.trace} to be wired in
because we don't want the strictness analyser to get ahold of it,
decide that the second argument is strict, evaluate that first (!!),
and make a jolly old mess.
\begin{code}
tRACE_ID
- = pcMiscPrelId traceIdKey gHC__ SLIT("trace") traceTy
- (noIdInfo `addInfo` pcGenerateSpecs traceIdKey tRACE_ID noIdInfo traceTy)
+ = pcMiscPrelId traceIdKey pREL_IO_BASE SLIT("trace") traceTy
+ (pcGenerateSpecs traceIdKey tRACE_ID noIdInfo traceTy `setSpecInfo` noIdInfo)
where
traceTy = mkSigmaTy [alphaTyVar] [] (mkFunTys [mkListTy charTy, alphaTy] alphaTy)
\end{code}
\begin{code}
packStringForCId
- = pcMiscPrelId packCStringIdKey{-ToDo:rename-} gHC__ SLIT("packStringForC__")
+ = pcMiscPrelId packCStringIdKey{-ToDo:rename-} pREL_PACK SLIT("packCString#")
(mkFunTys [stringTy] byteArrayPrimTy) noIdInfo
--------------------------------------------------------------------
unpackCStringId
- = pcMiscPrelId unpackCStringIdKey gHC__ SLIT("unpackPS__")
+ = pcMiscPrelId unpackCStringIdKey pREL_PACK SLIT("unpackCString#")
(mkFunTys [addrPrimTy{-a char *-}] stringTy) noIdInfo
-- Andy says:
--- (FunTy addrPrimTy{-a char *-} stringTy) (noIdInfo `addInfo` mkArityInfo 1)
+-- (FunTy addrPrimTy{-a char *-} stringTy) (exactArityInfo 1)
-- but I don't like wired-in IdInfos (WDP)
unpackCString2Id -- for cases when a string has a NUL in it
- = pcMiscPrelId unpackCString2IdKey gHC__ SLIT("unpackPS2__")
+ = pcMiscPrelId unpackCString2IdKey pREL_PACK SLIT("unpackNBytes#")
(mkFunTys [addrPrimTy{-a char *-}, intPrimTy{-length-}] stringTy)
noIdInfo
--------------------------------------------------------------------
unpackCStringAppendId
- = pcMiscPrelId unpackCStringAppendIdKey gHC__ SLIT("unpackAppendPS__")
+ = pcMiscPrelId unpackCStringAppendIdKey pREL_PACK SLIT("unpackAppendCString#")
(mkFunTys [addrPrimTy{-a "char *" pointer-},stringTy] stringTy)
- ((noIdInfo
- {-LATER:`addInfo_UF` mkMagicUnfolding unpackCStringAppendIdKey-})
- `addInfo` mkArityInfo 2)
+ (exactArityInfo 2)
unpackCStringFoldrId
- = pcMiscPrelId unpackCStringFoldrIdKey gHC__ SLIT("unpackFoldrPS__")
+ = pcMiscPrelId unpackCStringFoldrIdKey pREL_PACK SLIT("unpackFoldrCString#")
(mkSigmaTy [alphaTyVar] []
(mkFunTys [addrPrimTy{-a "char *" pointer-},
mkFunTys [charTy, alphaTy] alphaTy,
alphaTy]
alphaTy))
- ((noIdInfo
- {-LATER:`addInfo_UF` mkMagicUnfolding unpackCStringFoldrIdKey-})
- `addInfo` mkArityInfo 3)
+ (exactArityInfo 3)
\end{code}
OK, this is Will's idea: we should have magic values for Integers 0,
+1, +2, and -1 (go ahead, fire me):
+
\begin{code}
integerZeroId
- = pcMiscPrelId integerZeroIdKey gHC__ SLIT("integer_0") integerTy noIdInfo
+ = pcMiscPrelId integerZeroIdKey pREL_NUM SLIT("integer_0") integerTy noIdInfo
integerPlusOneId
- = pcMiscPrelId integerPlusOneIdKey gHC__ SLIT("integer_1") integerTy noIdInfo
+ = pcMiscPrelId integerPlusOneIdKey pREL_NUM SLIT("integer_1") integerTy noIdInfo
integerPlusTwoId
- = pcMiscPrelId integerPlusTwoIdKey gHC__ SLIT("integer_2") integerTy noIdInfo
+ = pcMiscPrelId integerPlusTwoIdKey pREL_NUM SLIT("integer_2") integerTy noIdInfo
integerMinusOneId
- = pcMiscPrelId integerMinusOneIdKey gHC__ SLIT("integer_m1") integerTy noIdInfo
+ = pcMiscPrelId integerMinusOneIdKey pREL_NUM SLIT("integer_m1") integerTy noIdInfo
\end{code}
%************************************************************************
-}
-seqId = pcMiscPrelId seqIdKey gHC__ SLIT("seq")
+seqId = pcMiscPrelId seqIdKey pRELUDE SLIT("seq")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding seq_template))
+ (mk_inline_unfolding seq_template)
where
[x, y, z]
= mkTemplateLocals [
par = /\ a b -> \ x::a y::b -> case par# x of { 0# -> parError#; _ -> y; }
-}
-parId = pcMiscPrelId parIdKey gHC__ SLIT("par")
+parId = pcMiscPrelId parIdKey cONC_BASE SLIT("par")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding par_template))
+ (mk_inline_unfolding par_template)
where
[x, y, z]
= mkTemplateLocals [
{-
_fork_ = /\ a b -> \ x::a y::b -> case fork# x of { 0# -> parError#; _ -> y; }
-}
-forkId = pcMiscPrelId forkIdKey gHC__ SLIT("fork")
+forkId = pcMiscPrelId forkIdKey cONC_BASE SLIT("fork")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding fork_template))
+ (mk_inline_unfolding fork_template)
where
[x, y, z]
= mkTemplateLocals [
GranSim ones:
\begin{code}
{- OUT:
-parLocalId = pcMiscPrelId parLocalIdKey gHC__ SLIT("parLocal")
+parLocalId = pcMiscPrelId parLocalIdKey cONC_BASE SLIT("parLocal")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [intPrimTy, intPrimTy, intPrimTy, intPrimTy, alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding parLocal_template))
+ (mk_inline_unfolding parLocal_template)
where
-- Annotations: w: name, g: gran. info, s: size info, p: par info -- HWL
[w, g, s, p, x, y, z]
[(mkMachInt 0, mkTyApp (Var pAR_ERROR_ID) [betaTy])]
(BindDefault z (Var y))))
-parGlobalId = pcMiscPrelId parGlobalIdKey gHC__ SLIT("parGlobal")
+parGlobalId = pcMiscPrelId parGlobalIdKey cONC_BASE SLIT("parGlobal")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [intPrimTy, intPrimTy, intPrimTy, intPrimTy, alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding parGlobal_template))
+ (mk_inline_unfolding parGlobal_template)
where
-- Annotations: w: name, g: gran. info, s: size info, p: par info -- HWL
[w, g, s, p, x, y, z]
(BindDefault z (Var y))))
-parAtId = pcMiscPrelId parAtIdKey gHC__ SLIT("parAt")
+parAtId = pcMiscPrelId parAtIdKey cONC_BASE SLIT("parAt")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [intPrimTy, intPrimTy, intPrimTy, intPrimTy,
alphaTy, betaTy, gammaTy] gammaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding parAt_template))
+ (mk_inline_unfolding parAt_template)
where
-- Annotations: w: name, g: gran. info, s: size info, p: par info -- HWL
[w, g, s, p, v, x, y, z]
[(mkMachInt 0, mkTyApp (Var pAR_ERROR_ID) [gammaTy])]
(BindDefault z (Var y))))
-parAtAbsId = pcMiscPrelId parAtAbsIdKey gHC__ SLIT("parAtAbs")
+parAtAbsId = pcMiscPrelId parAtAbsIdKey cONC_BASE SLIT("parAtAbs")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [intPrimTy, intPrimTy, intPrimTy, intPrimTy, intPrimTy, alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding parAtAbs_template))
+ (mk_inline_unfolding parAtAbs_template)
where
-- Annotations: w: name, g: gran. info, s: size info, p: par info -- HWL
[w, g, s, p, v, x, y, z]
[(mkMachInt 0, mkTyApp (Var pAR_ERROR_ID) [betaTy])]
(BindDefault z (Var y))))
-parAtRelId = pcMiscPrelId parAtRelIdKey gHC__ SLIT("parAtRel")
+parAtRelId = pcMiscPrelId parAtRelIdKey cONC_BASE SLIT("parAtRel")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [intPrimTy, intPrimTy, intPrimTy, intPrimTy, intPrimTy, alphaTy, betaTy] betaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding parAtRel_template))
+ (mk_inline_unfolding parAtRel_template)
where
-- Annotations: w: name, g: gran. info, s: size info, p: par info -- HWL
[w, g, s, p, v, x, y, z]
[(mkMachInt 0, mkTyApp (Var pAR_ERROR_ID) [betaTy])]
(BindDefault z (Var y))))
-parAtForNowId = pcMiscPrelId parAtForNowIdKey gHC__ SLIT("parAtForNow")
+parAtForNowId = pcMiscPrelId parAtForNowIdKey cONC_BASE SLIT("parAtForNow")
(mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [intPrimTy, intPrimTy, intPrimTy, intPrimTy,
alphaTy, betaTy, gammaTy] gammaTy))
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding parAtForNow_template))
+ (mk_inline_unfolding parAtForNow_template)
where
-- Annotations: w: name, g: gran. info, s: size info, p: par info -- HWL
[w, g, s, p, v, x, y, z]
-- copyable and noFollow are currently merely hooks: they are translated into
-- calls to the macros COPYABLE and NOFOLLOW -- HWL
-copyableId = pcMiscPrelId copyableIdKey gHC__ SLIT("copyable")
+copyableId = pcMiscPrelId copyableIdKey cONC_BASE SLIT("copyable")
(mkSigmaTy [alphaTyVar] []
alphaTy)
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding copyable_template))
+ (mk_inline_unfolding copyable_template)
where
-- Annotations: x: closure that's tagged to by copyable
[x, z]
copyable_template
= mkLam [alphaTyVar] [x] ( Prim CopyableOp [TyArg alphaTy, VarArg x] )
-noFollowId = pcMiscPrelId noFollowIdKey gHC__ SLIT("noFollow")
+noFollowId = pcMiscPrelId noFollowIdKey cONC_BASE SLIT("noFollow")
(mkSigmaTy [alphaTyVar] []
alphaTy)
- (noIdInfo `addInfo_UF` (mkUnfolding EssentialUnfolding noFollow_template))
+ (mk_inline_unfolding noFollow_template)
where
-- Annotations: x: closure that's tagged to not follow
[x, z]
-}
\end{code}
-%************************************************************************
-%* *
-\subsection[PrelVals-runST]{@runST@: Magic start-state-transformer function}
-%* *
-%************************************************************************
-
-@runST@ has a non-Haskell-able type:
-\begin{verbatim}
--- runST :: forall a. (forall s. _ST s a) -> a
--- which is to say ::
--- forall a. (forall s. (_State s -> (a, _State s))) -> a
-
-runST a m = case m _RealWorld (S# _RealWorld realWorld#) of
- (r :: a, wild :: _State _RealWorld) -> r
-\end{verbatim}
-
-We unfold always, just for simplicity:
-\begin{code}
-runSTId
- = pcMiscPrelId runSTIdKey gHC__ SLIT("runST") run_ST_ty id_info
- where
- s_tv = betaTyVar
- s = betaTy
-
- st_ty a = mkSigmaTy [s_tv] [] (mkStateTransformerTy s a)
-
- run_ST_ty
- = mkSigmaTy [alphaTyVar] [] (mkFunTys [st_ty alphaTy] alphaTy)
- -- NB: rank-2 polymorphism! (forall inside the st_ty...)
-
- id_info
- = noIdInfo
- `addInfo` mkArityInfo 1
- `addInfo` mkStrictnessInfo [WwStrict] Nothing
- `addInfo` mkArgUsageInfo [ArgUsage 1]
- -- ABSOLUTELY NO UNFOLDING, e.g.: (mkUnfolding EssentialUnfolding run_ST_template)
- -- see example below
-{- OUT:
- [m, t, r, wild]
- = mkTemplateLocals [
- {-m-} st_ty alphaTy,
- {-t-} realWorldStateTy,
- {-r-} alphaTy,
- {-_-} realWorldStateTy
- ]
-
- run_ST_template
- = mkLam [alphaTyVar] [m] (
- Let (NonRec t (Con stateDataCon [TyArg realWorldTy, VarArg realWorldPrimId])) (
- Case (App (mkTyApp (Var m) [realWorldTy]) (VarArg t)) (
- AlgAlts
- [(mkTupleCon 2, [r, wild], Var r)]
- NoDefault)))
--}
-\end{code}
-
-SLPJ 95/04: Why @runST@ must not have an unfolding; consider:
-\begin{verbatim}
-f x =
- runST ( \ s -> let
- (a, s') = newArray# 100 [] s
- (_, s'') = fill_in_array_or_something a x s'
- in
- freezeArray# a s'' )
-\end{verbatim}
-If we inline @runST@, we'll get:
-\begin{verbatim}
-f x = let
- (a, s') = newArray# 100 [] realWorld#{-NB-}
- (_, s'') = fill_in_array_or_something a x s'
- in
- freezeArray# a s''
-\end{verbatim}
-And now the @newArray#@ binding can be floated to become a CAF, which
-is totally and utterly wrong:
-\begin{verbatim}
-f = let
- (a, s') = newArray# 100 [] realWorld#{-NB-} -- YIKES!!!
- in
- \ x ->
- let (_, s'') = fill_in_array_or_something a x s' in
- freezeArray# a s''
-\end{verbatim}
-All calls to @f@ will share a {\em single} array! End SLPJ 95/04.
-
@realWorld#@ used to be a magic literal, \tr{void#}. If things get
nasty as-is, change it back to a literal (@Literal@).
\begin{code}
realWorldPrimId
- = pcMiscPrelId realWorldPrimIdKey gHC_BUILTINS SLIT("realWorld#")
+ = pcMiscPrelId realWorldPrimIdKey pREL_GHC SLIT("realWorld#")
realWorldStatePrimTy
noIdInfo
\end{code}
\begin{code}
-voidId = pcMiscPrelId voidIdKey gHC_BUILTINS SLIT("void") voidTy noIdInfo
+voidId = pc_bottoming_Id voidIdKey pREL_BASE SLIT("void") voidTy
\end{code}
%************************************************************************
\begin{code}
buildId
- = pcMiscPrelId buildIdKey SLIT("GHCerr") SLIT("build") buildTy
- ((((noIdInfo
- {-LATER:`addInfo_UF` mkMagicUnfolding buildIdKey-})
- `addInfo` mkStrictnessInfo [WwStrict] Nothing)
- `addInfo` mkArgUsageInfo [ArgUsage 2])
- `addInfo` pcGenerateSpecs buildIdKey buildId noIdInfo{-ToDo-} buildTy)
+ = pcMiscPrelId buildIdKey pREL_ERR SLIT("build") buildTy
+ noIdInfo
+ {- LATER:`addUnfoldInfo` mkMagicUnfolding buildIdKey)
+ `addStrictnessInfo` mkStrictnessInfo [WwStrict] False)
+ `addArgUsageInfo` mkArgUsageInfo [ArgUsage 2])
+ `setSpecInfo` pcGenerateSpecs buildIdKey buildId noIdInfo{-ToDo-} buildTy)
+ -}
-- cheating, but since _build never actually exists ...
where
-- The type of this strange object is:
\begin{code}
augmentId
- = pcMiscPrelId augmentIdKey SLIT("GHCerr") SLIT("augment") augmentTy
- (((noIdInfo
- {-LATER:`addInfo_UF` mkMagicUnfolding augmentIdKey-})
- `addInfo` mkStrictnessInfo [WwStrict,WwLazy False] Nothing)
- `addInfo` mkArgUsageInfo [ArgUsage 2,UnknownArgUsage])
+ = pcMiscPrelId augmentIdKey pREL_ERR SLIT("augment") augmentTy
+ noIdInfo
+ {- LATER:`addUnfoldInfo` mkMagicUnfolding augmentIdKey)
+ `addStrictnessInfo` mkStrictnessInfo [WwStrict,WwLazy False] False)
+ `addArgUsageInfo` mkArgUsageInfo [ArgUsage 2,UnknownArgUsage])
+ -}
-- cheating, but since _augment never actually exists ...
where
-- The type of this strange object is:
\end{code}
\begin{code}
-foldrId = pcMiscPrelId foldrIdKey pRELUDE SLIT("foldr")
+foldrId = pcMiscPrelId foldrIdKey pREL_BASE SLIT("foldr")
foldrTy idInfo
where
foldrTy =
mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [mkFunTys [alphaTy, betaTy] betaTy, betaTy, mkListTy alphaTy] betaTy)
- idInfo = (((((noIdInfo
- {-LATER:`addInfo_UF` mkMagicUnfolding foldrIdKey-})
- `addInfo` mkStrictnessInfo [WwLazy False,WwLazy False,WwStrict] Nothing)
- `addInfo` mkArityInfo 3)
- `addInfo` mkUpdateInfo [2,2,1])
- `addInfo` pcGenerateSpecs foldrIdKey foldrId noIdInfo{-ToDo-} foldrTy)
+ idInfo = noIdInfo
+ {- LATER: mkStrictnessInfo [WwLazy False,WwLazy False,WwStrict] False `setStrictnessInfo`
+ exactArity 3 `setArityInfo`
+ mkUpdateInfo [2,2,1] `setUpdateInfo`
+ pcGenerateSpecs foldrIdKey foldrId noIdInfo{-ToDo-} foldrTy `setSpecInfo`
+ noIdInfo
+ -}
-foldlId = pcMiscPrelId foldlIdKey pRELUDE SLIT("foldl")
+foldlId = pcMiscPrelId foldlIdKey pREL_LIST SLIT("foldl")
foldlTy idInfo
where
foldlTy =
mkSigmaTy [alphaTyVar, betaTyVar] []
(mkFunTys [mkFunTys [alphaTy, betaTy] alphaTy, alphaTy, mkListTy betaTy] alphaTy)
- idInfo = (((((noIdInfo
- {-LATER:`addInfo_UF` mkMagicUnfolding foldlIdKey-})
- `addInfo` mkStrictnessInfo [WwLazy False,WwLazy False,WwStrict] Nothing)
- `addInfo` mkArityInfo 3)
- `addInfo` mkUpdateInfo [2,2,1])
- `addInfo` pcGenerateSpecs foldlIdKey foldlId noIdInfo{-ToDo-} foldlTy)
+ idInfo = noIdInfo
+ {- LATER: `addUnfoldInfo` mkMagicUnfolding foldlIdKey)
+ `addStrictnessInfo` mkStrictnessInfo [WwLazy False,WwLazy False,WwStrict] False)
+ `addArityInfo` exactArity 3)
+ `addUpdateInfo` mkUpdateInfo [2,2,1])
+ `setSpecInfo` pcGenerateSpecs foldlIdKey foldlId noIdInfo{-ToDo-} foldlTy)
+ -}
-- A bit of magic goes no here. We translate appendId into ++,
-- you have to be carefull when you actually compile append:
--
{- OLD: doesn't apply with 1.3
appendId
- = pcMiscPrelId appendIdKey pRELUDE_LIST SLIT("++") appendTy idInfo
+ = pcMiscPrelId appendIdKey mONAD SLIT("++") appendTy idInfo
where
appendTy =
(mkSigmaTy [alphaTyVar] []
(mkFunTys [mkListTy alphaTy, mkListTy alphaTy] (mkListTy alphaTy)))
idInfo = (((noIdInfo
- `addInfo` mkStrictnessInfo [WwStrict,WwLazy False] Nothing)
- `addInfo` mkArityInfo 2)
- `addInfo` mkUpdateInfo [1,2])
+ `addStrictnessInfo` mkStrictnessInfo [WwStrict,WwLazy False] False)
+ `addArityInfo` exactArity 2)
+ `addUpdateInfo` mkUpdateInfo [1,2])
-}
\end{code}
ToDo: Create single mkworld definition which is grabbed here and in ghc.lprl
\begin{code}
-pcGenerateSpecs :: Unique -> Id -> IdInfo -> Type -> SpecEnv
+pcGenerateSpecs :: Unique -> Id -> IdInfo -> Type -> IdSpecEnv
pcGenerateSpecs key id info ty
- = nullSpecEnv
+ = emptySpecEnv
{- LATER:
projects / ghc-hetmet.git / blobdiff