-- The Name type
Name, -- Abstract
mkLocalName, mkSysLocalName, mkCCallName,
- mkTopName, mkIPName,
- mkDerivedName, mkGlobalName, mkKnownKeyGlobal, mkWiredInName,
+ mkIPName,
+ mkGlobalName, mkKnownKeyGlobal, mkWiredInName,
nameUnique, setNameUnique,
- tidyTopName,
nameOccName, nameModule, nameModule_maybe,
setNameOcc, nameRdrName, setNameModuleAndLoc,
- toRdrName, hashName,
+ toRdrName, hashName,
+ globaliseName, localiseName,
nameSrcLoc, nameIsLocallyDefined, isDllName, nameIsFrom, nameIsLocalOrFrom,
-- Environment
NameEnv, mkNameEnv,
emptyNameEnv, unitNameEnv, nameEnvElts,
- extendNameEnv_C, extendNameEnv, foldNameEnv,
+ extendNameEnv_C, extendNameEnv, foldNameEnv, filterNameEnv,
plusNameEnv, plusNameEnv_C, extendNameEnv, extendNameEnvList,
lookupNameEnv, lookupNameEnv_NF, delFromNameEnv, elemNameEnv,
#include "HsVersions.h"
import OccName -- All of it
-import Module ( Module, moduleName, mkVanillaModule, isModuleInThisPackage )
+import Module ( Module, moduleName, mkVanillaModule, isHomeModule )
import RdrName ( RdrName, mkRdrOrig, mkRdrUnqual, rdrNameOcc, rdrNameModule )
-import CmdLineOpts ( opt_Static, opt_OmitInterfacePragmas, opt_EnsureSplittableC )
+import CmdLineOpts ( opt_Static )
import SrcLoc ( builtinSrcLoc, noSrcLoc, SrcLoc )
import Unique ( Unique, Uniquable(..), u2i, pprUnique, pprUnique10 )
import FastTypes
mkGlobalName :: Unique -> Module -> OccName -> SrcLoc -> Name
mkGlobalName uniq mod occ loc = Name { n_uniq = uniq, n_sort = Global mod,
n_occ = occ, n_loc = loc }
-
mkKnownKeyGlobal :: RdrName -> Unique -> Name
mkKnownKeyGlobal rdr_name uniq
n_sort = Local,
n_occ = occ,
n_loc = noSrcLoc }
-
----------------------------------------------------------------------
-mkDerivedName :: (OccName -> OccName)
- -> Name -- Base name
- -> Unique -- New unique
- -> Name -- Result is always a value name
-
-mkDerivedName f name uniq = name {n_uniq = uniq, n_occ = f (n_occ name)}
\end{code}
\begin{code}
setNameUnique name uniq = name {n_uniq = uniq}
setNameOcc :: Name -> OccName -> Name
- -- Give the thing a new OccName, *and*
- -- record that it's no longer a sys-local
- -- This is used by the tidy-up pass
setNameOcc name occ = name {n_occ = occ}
+globaliseName :: Name -> Module -> Name
+globaliseName n mod = n { n_sort = Global mod }
+
+localiseName :: Name -> Name
+localiseName n = n { n_sort = Local }
+
setNameModuleAndLoc :: Name -> Module -> SrcLoc -> Name
setNameModuleAndLoc name mod loc = name {n_sort = set (n_sort name), n_loc = loc}
where
%************************************************************************
%* *
-\subsection{Tidying a name}
-%* *
-%************************************************************************
-
-tidyTopName is applied to top-level names in the final program
-
-For top-level things,
- it globalises Local names
- (if all top-level things should be visible)
- and localises non-exported Global names
- (if only exported things should be visible)
-
-In all cases except an exported global, it gives it a new occurrence name.
-
-The "visibility" here concerns whether the .o file's symbol table
-mentions the thing; if so, it needs a module name in its symbol.
-The Global things are "visible" and the Local ones are not
-
-Why should things be "visible"? Certainly they must be if they
-are exported. But also:
-
-(a) In certain (prelude only) modules we split up the .hc file into
- lots of separate little files, which are separately compiled by the C
- compiler. That gives lots of little .o files. The idea is that if
- you happen to mention one of them you don't necessarily pull them all
- in. (Pulling in a piece you don't need can be v bad, because it may
- mention other pieces you don't need either, and so on.)
-
- Sadly, splitting up .hc files means that local names (like s234) are
- now globally visible, which can lead to clashes between two .hc
- files. So unlocaliseWhatnot goes through making all the local things
- into global things, essentially by giving them full names so when they
- are printed they'll have their module name too. Pretty revolting
- really.
-
-(b) When optimisation is on we want to make all the internal
- top-level defns externally visible
-
-\begin{code}
-tidyTopName :: Module -> TidyOccEnv -> Bool -> Name -> (TidyOccEnv, Name)
-tidyTopName mod env is_exported
- name@(Name { n_occ = occ, n_sort = sort, n_uniq = uniq, n_loc = loc })
- = case sort of
- Global _ | is_exported -> (env, name)
- | otherwise -> (env, name { n_sort = new_sort })
- -- Don't change the occurrnce names of globals, because many of them
- -- are bound by either a class declaration or a data declaration
- -- or an explicit user export.
-
- other | is_exported -> (env', name { n_sort = Global mod, n_occ = occ' })
- | otherwise -> (env', name { n_sort = new_sort, n_occ = occ' })
- where
- (env', occ') = tidyOccName env occ
- new_sort = mkLocalTopSort mod
-
-mkTopName :: Unique -> Module -> FAST_STRING -> Name
- -- Make a top-level name; make it Global if top-level
- -- things should be externally visible; Local otherwise
- -- This chap is only used *after* the tidyCore phase
- -- Notably, it is used during STG lambda lifting
- --
- -- We have to make sure that the name is globally unique
- -- and we don't have tidyCore to help us. So we append
- -- the unique. Hack! Hack!
- -- (Used only by the STG lambda lifter.)
-mkTopName uniq mod fs
- = Name { n_uniq = uniq,
- n_sort = mkLocalTopSort mod,
- n_occ = mkVarOcc (_PK_ ((_UNPK_ fs) ++ show uniq)),
- n_loc = noSrcLoc }
-
-mkLocalTopSort :: Module -> NameSort
-mkLocalTopSort mod
- | all_toplev_ids_visible = Global mod
- | otherwise = Local
-
-all_toplev_ids_visible
- = not opt_OmitInterfacePragmas || -- Pragmas can make them visible
- opt_EnsureSplittableC -- Splitting requires visiblilty
-\end{code}
-
-
-
-%************************************************************************
-%* *
\subsection{Predicates and selectors}
%* *
%************************************************************************
-- Does this name refer to something in a different DLL?
isDllName nm = not opt_Static &&
not (isLocalName nm) && -- isLocalName test needed 'cos
- not (isModuleInThisPackage (nameModule nm)) -- nameModule won't work on local names
+ not (isHomeModule (nameModule nm)) -- nameModule won't work on local names
isTyVarName :: Name -> Bool
isTyVarName name = isTvOcc (nameOccName name)
-
\end{code}
lookupNameEnv_NF :: NameEnv a -> Name -> a
mapNameEnv :: (a->b) -> NameEnv a -> NameEnv b
foldNameEnv :: (a -> b -> b) -> b -> NameEnv a -> b
+filterNameEnv :: (elt -> Bool) -> NameEnv elt -> NameEnv elt
emptyNameEnv = emptyUFM
foldNameEnv = foldUFM
elemNameEnv = elemUFM
mapNameEnv = mapUFM
unitNameEnv = unitUFM
+filterNameEnv = filterUFM
lookupNameEnv = lookupUFM
lookupNameEnv_NF env n = expectJust "lookupNameEnv_NF" (lookupUFM env n)
System -> pprSysLocal sty uniq occ
Local -> pprLocal sty uniq occ
-pprLocal sty uniq occ
- | codeStyle sty = pprUnique uniq
- | debugStyle sty = pprOccName occ <>
- text "{-" <> pprUnique10 uniq <> text "-}"
- | otherwise = pprOccName occ
-
pprGlobal sty name uniq mod occ
| codeStyle sty = ppr (moduleName mod) <> char '_' <> pprOccName occ
| debugStyle sty = ppr (moduleName mod) <> dot <> pprOccName occ <>
- text "{-" <> pprUnique10 uniq <> text "-}"
+ text "{-" <> pprUnique uniq <> text "-}"
| unqualStyle sty name = pprOccName occ
| otherwise = ppr (moduleName mod) <> dot <> pprOccName occ
+pprLocal sty uniq occ
+ | codeStyle sty = pprUnique uniq
+ | debugStyle sty = pprOccName occ <>
+ text "{-" <> pprUnique10 uniq <> text "-}"
+ | otherwise = pprOccName occ -- User and Iface styles
+
+-- Like Local, except that we only omit the unique in Iface style
pprSysLocal sty uniq occ
| codeStyle sty = pprUnique uniq
+ | ifaceStyle sty = pprOccName occ -- The tidy phase has ensured that OccNames
+ -- are enough
| otherwise = pprOccName occ <> char '_' <> pprUnique uniq
+ -- If the tidy phase hasn't run, the OccName
+ -- is unlikely to be informative (like 's'),
+ -- so print the unique
\end{code}
-
%************************************************************************
%* *
\subsection{Overloaded functions related to Names}
projects / ghc-hetmet.git / blobdiff