\begin{code}
module HscTypes (
ModDetails(..), GlobalSymbolTable,
+ HomeSymbolTable, PackageSymbolTable,
TyThing(..), lookupTypeEnv,
WhetherHasOrphans, ImportVersion, ExportItem,
PersistentRenamerState(..), IsBootInterface, Avails, DeclsMap,
IfaceInsts, IfaceRules, DeprecationEnv, OrigNameEnv, AvailEnv,
+ PersistentCompilerState(..),
InstEnv,
- -- Provenance
+ GlobalRdrEnv,
+
+ -- Provenance
Provenance(..), ImportReason(..), PrintUnqualified,
pprProvenance, hasBetterProv
import Name ( Name, NameEnv, NamedThing,
unitNameEnv, extendNameEnv, plusNameEnv,
- lookupNameEnv, emptyNameEnv, getName, nameModule )
+ lookupNameEnv, emptyNameEnv, getName, nameModule,
+ nameSrcLoc )
import Module ( Module, ModuleName,
extendModuleEnv, lookupModuleEnv )
import Class ( Class )
import Type ( Type )
import VarSet ( TyVarSet )
import Panic ( panic )
+import Outputable
+import SrcLoc ( SrcLoc, isGoodSrcLoc )
\end{code}
%************************************************************************
\begin{code}
data PersistentCompilerState
= PCS {
- pcsPST :: PackageSymbolTable, -- Domain = non-home-package modules
- -- except that the InstEnv components is empty
- pcsInsts :: InstEnv, -- The total InstEnv accumulated from all
- -- the non-home-package modules
- pcsRules :: RuleEnv, -- Ditto RuleEnv
+ pcs_PST :: PackageSymbolTable, -- Domain = non-home-package modules
+ -- except that the InstEnv components is empty
+ pcs_insts :: InstEnv, -- The total InstEnv accumulated from all
+ -- the non-home-package modules
+ pcs_rules :: RuleEnv, -- Ditto RuleEnv
- pcsPRS :: PersistentRenamerState
+ pcs_PRS :: PersistentRenamerState
}
\end{code}
* A name supply, which deals with allocating unique names to
(Module,OccName) original names,
- * An accumulated InstEnv from all the modules in pcsPST
+ * An accumulated InstEnv from all the modules in pcs_PST
The point is that we don't want to keep recreating it whenever
we compile a new module. The InstEnv component of pcPST is empty.
(This means we might "see" instances that we shouldn't "really" see;
ImportReason
PrintUnqualified
+{-
+Moved here from Name.
+pp_prov (LocalDef _ Exported) = char 'x'
+pp_prov (LocalDef _ NotExported) = char 'l'
+pp_prov (NonLocalDef ImplicitImport _) = char 'j'
+pp_prov (NonLocalDef (UserImport _ _ True ) _) = char 'I' -- Imported by name
+pp_prov (NonLocalDef (UserImport _ _ False) _) = char 'i' -- Imported by ..
+pp_prov SystemProv = char 's'
+-}
+
data ImportReason
= UserImport Module SrcLoc Bool -- Imported from module M on line L
-- Note the M may well not be the defining module
hasBetterProv (NonLocalDef (UserImport _ _ _ ) _) (NonLocalDef ImplicitImport _) = True
hasBetterProv _ _ = False
-pprNameProvenance :: Name -> Provenance -> SDoc
+pprProvenance :: Name -> Provenance -> SDoc
pprProvenance name LocalDef = ptext SLIT("defined at") <+> ppr (nameSrcLoc name)
pprProvenance name (NonLocalDef why _) = sep [ppr_reason why,
nest 2 (parens (ppr_defn (nameSrcLoc name)))]