diff options
Diffstat (limited to 'compiler/basicTypes/IdInfo.hs')
| -rw-r--r-- | compiler/basicTypes/IdInfo.hs | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/compiler/basicTypes/IdInfo.hs b/compiler/basicTypes/IdInfo.hs index 6f00df5f6f..450644d734 100644 --- a/compiler/basicTypes/IdInfo.hs +++ b/compiler/basicTypes/IdInfo.hs @@ -10,7 +10,7 @@ Haskell. [WDP 94/11]) module IdInfo ( -- * The IdDetails type - IdDetails(..), pprIdDetails, coVarDetails, + IdDetails(..), pprIdDetails, coVarDetails, isCoVarDetails, RecSelParent(..), -- * The IdInfo type @@ -135,20 +135,19 @@ data IdDetails -- implemented with a newtype, so it might be bad -- to be strict on this dictionary + | CoVarId -- ^ A coercion variable + -- The rest are distinguished only for debugging reasons -- e.g. to suppress them in -ddump-types -- Currently we don't persist these through interface file -- (see MkIface.toIfaceIdDetails), but we easily could if it mattered - | DefMethId -- ^ A default-method Id, either polymorphic or generic - | ReflectionId -- ^ A top-level Id to support runtime reflection -- e.g. $trModule, or $tcT | PatSynId -- ^ A top-level Id to support pattern synonyms; -- the builder or matcher for the patern synonym - data RecSelParent = RecSelData TyCon | RecSelPatSyn PatSyn deriving Eq -- Either `TyCon` or `PatSyn` depending -- on the origin of the record selector. @@ -160,10 +159,15 @@ instance Outputable RecSelParent where RecSelData ty_con -> ppr ty_con RecSelPatSyn ps -> ppr ps - - +-- | Just a synonym for 'CoVarId'. Written separately so it can be +-- exported in the hs-boot file. coVarDetails :: IdDetails -coVarDetails = VanillaId +coVarDetails = CoVarId + +-- | Check if an 'IdDetails' says 'CoVarId'. +isCoVarDetails :: IdDetails -> Bool +isCoVarDetails CoVarId = True +isCoVarDetails _ = False instance Outputable IdDetails where ppr = pprIdDetails @@ -173,7 +177,6 @@ pprIdDetails VanillaId = empty pprIdDetails other = brackets (pp other) where pp VanillaId = panic "pprIdDetails" - pp DefMethId = ptext (sLit "DefMethId") pp ReflectionId = ptext (sLit "ReflectionId") pp PatSynId = ptext (sLit "PatSynId") pp (DataConWorkId _) = ptext (sLit "DataCon") @@ -186,6 +189,7 @@ pprIdDetails other = brackets (pp other) pp (RecSelId { sel_naughty = is_naughty }) = brackets $ ptext (sLit "RecSel") <> ppWhen is_naughty (ptext (sLit "(naughty)")) + pp CoVarId = ptext (sLit "CoVarId") {- ************************************************************************ |