diff options
Diffstat (limited to 'compiler/main/PprTyThing.hs')
| -rw-r--r-- | compiler/main/PprTyThing.hs | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/compiler/main/PprTyThing.hs b/compiler/main/PprTyThing.hs index b918943c8e..226986f7b5 100644 --- a/compiler/main/PprTyThing.hs +++ b/compiler/main/PprTyThing.hs @@ -22,11 +22,11 @@ module PprTyThing ( import GhcPrelude import Type ( Type, ArgFlag(..), TyThing(..), mkTyVarBinders, tidyOpenType ) -import IfaceSyn ( ShowSub(..), ShowHowMuch(..), AltPpr(..) +import GHC.Iface.Syntax ( ShowSub(..), ShowHowMuch(..), AltPpr(..) , showToHeader, pprIfaceDecl ) import CoAxiom ( coAxiomTyCon ) import HscTypes( tyThingParent_maybe ) -import MkIface ( tyThingToIfaceDecl ) +import GHC.Iface.Utils ( tyThingToIfaceDecl ) import FamInstEnv( FamInst(..), FamFlavor(..) ) import TyCoPpr ( pprUserForAll, pprTypeApp, pprSigmaType ) import Name @@ -36,8 +36,8 @@ import Outputable -- ----------------------------------------------------------------------------- -- Pretty-printing entities that we get from the GHC API -{- Note [Pretty printing via IfaceSyn] -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +{- Note [Pretty printing via Iface syntax] +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Our general plan for pretty-printing - Types - TyCons @@ -45,19 +45,19 @@ Our general plan for pretty-printing - Pattern synonyms ...etc... -is to convert them to IfaceSyn, and pretty-print that. For example +is to convert them to Iface syntax, and pretty-print that. For example - pprType converts a Type to an IfaceType, and pretty prints that. - pprTyThing converts the TyThing to an IfaceDecl, and pretty prints that. -So IfaceSyn play a dual role: +So Iface syntax plays a dual role: - it's the internal version of an interface files - it's used for pretty-printing Why do this? * A significant reason is that we need to be able - to pretty-print IfaceSyn (to display Foo.hi), and it was a + to pretty-print Iface syntax (to display Foo.hi), and it was a pain to duplicate masses of pretty-printing goop, esp for Type and IfaceType. @@ -72,7 +72,7 @@ Why do this? * Interface files contains fast-strings, not uniques, so the very same tidying must take place when we convert to IfaceDecl. E.g. - MkIface.tyThingToIfaceDecl which converts a TyThing (i.e. TyCon, + GHC.Iface.Utils.tyThingToIfaceDecl which converts a TyThing (i.e. TyCon, Class etc) to an IfaceDecl. Bottom line: IfaceDecls are already 'tidy', so it's straightforward @@ -87,17 +87,17 @@ Why do this? Consequences: -- IfaceSyn (and IfaceType) must contain enough information to +- Iface syntax (and IfaceType) must contain enough information to print nicely. Hence, for example, the IfaceAppArgs type, which allows us to suppress invisible kind arguments in types - (see Note [Suppressing invisible arguments] in IfaceType) + (see Note [Suppressing invisible arguments] in GHC.Iface.Type) - In a few places we have info that is used only for pretty-printing, - and is totally ignored when turning IfaceSyn back into TyCons - etc (in TcIface). For example, IfaceClosedSynFamilyTyCon + and is totally ignored when turning Iface syntax back into Core + (in GHC.IfaceToCore). For example, IfaceClosedSynFamilyTyCon stores a [IfaceAxBranch] that is used only for pretty-printing. -- See Note [Free tyvars in IfaceType] in IfaceType +- See Note [Free tyvars in IfaceType] in GHC.Iface.Type See #7730, #8776 for details -} @@ -121,7 +121,7 @@ pprFamInst (FamInst { fi_flavor = SynFamilyInst, fi_axiom = axiom hang (text "type instance" <+> pprUserForAll (mkTyVarBinders Specified tvs) -- See Note [Printing foralls in type family instances] - -- in IfaceType + -- in GHC.Iface.Type <+> pprTypeApp (coAxiomTyCon axiom) lhs_tys) 2 (equals <+> ppr rhs) |