-- Typechecker types
TcTyThing(..), pprTcTyThingCategory,
- GadtRefinement,
-- Template Haskell
ThStage(..), topStage, topSpliceStage,
import HsSyn ( PendingSplice, HsOverLit, LRuleDecl, LForeignDecl,
ArithSeqInfo, DictBinds, LHsBinds, LImportDecl, HsGroup,
- IE )
+ ExprCoFn, IE )
import HscTypes ( FixityEnv,
HscEnv, TypeEnv, TyThing,
GenAvailInfo(..), AvailInfo, HscSource(..),
availName, IsBootInterface, Deprecations )
-import Packages ( PackageId, HomeModules )
+import Packages ( PackageId )
import Type ( Type, pprTyThingCategory )
import TcType ( TcTyVarSet, TcType, TcThetaType, SkolemInfo, TvSubst,
- TcPredType, TcKind, tcCmpPred, tcCmpType, tcCmpTypes, pprSkolInfo )
+ TcPredType, TcKind, tcCmpPred, tcCmpType,
+ tcCmpTypes, pprSkolInfo )
import InstEnv ( Instance, InstEnv )
+import FamInstEnv ( FamInst, FamInstEnv )
import IOEnv
import RdrName ( GlobalRdrEnv, LocalRdrEnv )
import Name ( Name )
import NameEnv
import NameSet ( NameSet, unionNameSets, DefUses )
-import OccName ( OccEnv )
import Var ( Id, TyVar )
import VarEnv ( TidyEnv )
import Module
+import UniqFM
import SrcLoc ( SrcSpan, SrcLoc, Located, srcSpanStart )
import VarSet ( IdSet )
import ErrUtils ( Messages, Message )
+import UniqFM ( UniqFM )
import UniqSupply ( UniqSupply )
import BasicTypes ( IPName )
import Util ( thenCmp )
type TcIdSet = IdSet
type TcDictBinds = DictBinds TcId -- Bag of dictionary bindings
-
-
type TcRnIf a b c = IOEnv (Env a b) c
type IfM lcl a = TcRnIf IfGblEnv lcl a -- Iface stuff
+
type IfG a = IfM () a -- Top level
type IfL a = IfM IfLclEnv a -- Nested
type TcRn a = TcRnIf TcGblEnv TcLclEnv a
env_top :: HscEnv, -- Top-level stuff that never changes
-- Includes all info about imported things
- env_us :: TcRef UniqSupply, -- Unique supply for local varibles
+ env_us :: {-# UNPACK #-} !(IORef UniqSupply),
+ -- Unique supply for local varibles
env_gbl :: gbl, -- Info about things defined at the top level
-- of the module being compiled
-- bound in this module when dealing with hi-boot recursions
-- Updated at intervals (e.g. after dealing with types and classes)
- tcg_inst_env :: InstEnv, -- Instance envt for *home-package* modules
- -- Includes the dfuns in tcg_insts
+ tcg_inst_env :: InstEnv, -- Instance envt for *home-package*
+ -- modules; Includes the dfuns in
+ -- tcg_insts
+ tcg_fam_inst_env :: FamInstEnv, -- Ditto for family instances
+
-- Now a bunch of things about this module that are simply
-- accumulated, but never consulted until the end.
-- Nevertheless, it's convenient to accumulate them along
-- from where, including things bound
-- in this module
- tcg_home_mods :: HomeModules,
- -- Calculated from ImportAvails, allows us to
- -- call Packages.isHomeModule
-
tcg_dus :: DefUses, -- What is defined in this module and what is used.
-- The latter is used to generate
-- (a) version tracking; no need to recompile if these
-- .hi file, or GHCi state, or ext core
-- plus which bit is currently being examined
- if_tv_env :: OccEnv TyVar, -- Nested tyvar bindings
- if_id_env :: OccEnv Id -- Nested id binding
+ if_tv_env :: UniqFM TyVar, -- Nested tyvar bindings
+ if_id_env :: UniqFM Id -- Nested id binding
}
\end{code}
tcl_lie :: TcRef LIE -- Place to accumulate type constraints
}
-type GadtRefinement = TvSubst
{- Note [Given Insts]
~~~~~~~~~~~~~~~~~~
data TcTyThing
= AGlobal TyThing -- Used only in the return type of a lookup
- | ATcId TcId -- Ids defined in this module; may not be fully zonked
- ThLevel
- Bool -- True <=> apply the type refinement to me
+ | ATcId { -- Ids defined in this module; may not be fully zonked
+ tct_id :: TcId,
+ tct_co :: Maybe ExprCoFn, -- Nothing <=> Do not apply a GADT type refinement
+ -- I am wobbly, or have no free
+ -- type variables
+ -- Just co <=> Apply any type refinement to me,
+ -- and record it in the coercion
+ tct_type :: TcType, -- Type of (coercion applied to id)
+ tct_level :: ThLevel }
| ATyVar Name TcType -- The type to which the lexically scoped type vaiable
-- is currently refined. We only need the Name
instance Outputable TcTyThing where -- Debugging only
ppr (AGlobal g) = ppr g
- ppr (ATcId g tl rig) = text "Identifier" <>
- ifPprDebug (brackets (ppr g <> comma <> ppr tl <+> ppr rig))
+ ppr elt@(ATcId {}) = text "Identifier" <>
+ ifPprDebug (brackets (ppr (tct_id elt) <> dcolon <> ppr (tct_type elt) <> comma
+ <+> ppr (tct_level elt) <+> ppr (tct_co elt)))
ppr (ATyVar tv _) = text "Type variable" <+> quotes (ppr tv)
ppr (AThing k) = text "AThing" <+> ppr k
\begin{code}
data ImportAvails
= ImportAvails {
- imp_env :: ModuleEnv NameSet,
+ imp_env :: ModuleNameEnv NameSet,
-- All the things imported, classified by
-- the *module qualifier* for its import
-- e.g. import List as Foo
-- need to recompile if the export version changes
-- (b) to specify what child modules to initialise
- imp_dep_mods :: ModuleEnv (Module, IsBootInterface),
+ imp_dep_mods :: ModuleNameEnv (ModuleName, IsBootInterface),
-- Home-package modules needed by the module being compiled
--
-- It doesn't matter whether any of these dependencies
-- Orphan modules below us in the import tree
}
-mkModDeps :: [(Module, IsBootInterface)]
- -> ModuleEnv (Module, IsBootInterface)
-mkModDeps deps = foldl add emptyModuleEnv deps
+mkModDeps :: [(ModuleName, IsBootInterface)]
+ -> ModuleNameEnv (ModuleName, IsBootInterface)
+mkModDeps deps = foldl add emptyUFM deps
where
- add env elt@(m,_) = extendModuleEnv env m elt
+ add env elt@(m,_) = addToUFM env m elt
emptyImportAvails :: ImportAvails
-emptyImportAvails = ImportAvails { imp_env = emptyModuleEnv,
+emptyImportAvails = ImportAvails { imp_env = emptyUFM,
imp_mods = emptyModuleEnv,
- imp_dep_mods = emptyModuleEnv,
+ imp_dep_mods = emptyUFM,
imp_dep_pkgs = [],
imp_orphs = [] }
imp_dep_mods = dmods1, imp_dep_pkgs = dpkgs1, imp_orphs = orphs1 })
(ImportAvails { imp_env = env2, imp_mods = mods2,
imp_dep_mods = dmods2, imp_dep_pkgs = dpkgs2, imp_orphs = orphs2 })
- = ImportAvails { imp_env = plusModuleEnv_C unionNameSets env1 env2,
+ = ImportAvails { imp_env = plusUFM_C unionNameSets env1 env2,
imp_mods = mods1 `plusModuleEnv` mods2,
- imp_dep_mods = plusModuleEnv_C plus_mod_dep dmods1 dmods2,
+ imp_dep_mods = plusUFM_C plus_mod_dep dmods1 dmods2,
imp_dep_pkgs = dpkgs1 `unionLists` dpkgs2,
imp_orphs = orphs1 `unionLists` orphs2 }
where
\begin{code}
pprInstLoc :: InstLoc -> SDoc
pprInstLoc (InstLoc orig locn _)
- = hsep [text "arising from", pp_orig orig, text "at", ppr locn]
+ = sep [text "arising from" <+> pp_orig orig,
+ text "at" <+> ppr locn]
where
pp_orig (OccurrenceOf name) = hsep [ptext SLIT("use of"), quotes (ppr name)]
pp_orig (IPOccOrigin name) = hsep [ptext SLIT("use of implicit parameter"), quotes (ppr name)]
projects / ghc-hetmet.git / blobdiff