ArrowCtxt(..), topArrowCtxt, ProcLevel, topProcLevel,
-- Insts
- Inst(..), InstOrigin(..), InstLoc(..), pprInstLoc, instLocSrcLoc,
+ Inst(..), InstOrigin(..), InstLoc(..), pprInstLoc,
+ instLocSrcLoc, instLocSrcSpan,
LIE, emptyLIE, unitLIE, plusLIE, consLIE,
plusLIEs, mkLIE, isEmptyLIE, lieToList, listToLIE,
#include "HsVersions.h"
-import HsSyn ( PendingSplice, HsOverLit, MonoBinds, RuleDecl, ForeignDecl )
-import RnHsSyn ( RenamedPat, RenamedArithSeqInfo )
+import HsSyn ( PendingSplice, HsOverLit, LHsBind, LRuleDecl, LForeignDecl,
+ Pat, ArithSeqInfo )
import HscTypes ( FixityEnv,
HscEnv, TypeEnv, TyThing,
Avails, GenAvailInfo(..), AvailInfo,
import Var ( Id, TyVar )
import VarEnv ( TidyEnv )
import Module
-import SrcLoc ( SrcLoc )
+import SrcLoc ( SrcSpan, SrcLoc, srcSpanStart )
import VarSet ( IdSet )
import ErrUtils ( Messages, Message )
import UniqSupply ( UniqSupply )
-- rather like the free variables of the program, but
-- are implicit instead of explicit.
+ tcg_th_used :: TcRef Bool, -- True <=> Template Haskell syntax used
+ -- We need this so that we can generate a dependency on the
+ -- Template Haskell package, becuase the desugarer is going to
+ -- emit loads of references to TH symbols. It's rather like
+ -- tcg_inst_uses; the reference is implicit rather than explicit,
+ -- so we have to zap a mutable variable.
+
-- 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
-- with the rest of the info from this module.
- tcg_exports :: Avails, -- What is exported
- tcg_imports :: ImportAvails, -- Information about what was imported
- -- from where, including things bound
- -- in this module
+ tcg_exports :: NameSet, -- What is exported
+ tcg_imports :: ImportAvails, -- Information about what was imported
+ -- from where, including things bound
+ -- in this module
tcg_dus :: DefUses, -- What is defined in this module and what is used.
-- The latter is used to generate
-- The next fields accumulate the payload of the module
-- The binds, rules and foreign-decl fiels are collected
-- initially in un-zonked form and are finally zonked in tcRnSrcDecls
- tcg_binds :: MonoBinds Id, -- Value bindings in this module
+ tcg_binds :: Bag (LHsBind Id), -- Value bindings in this module
tcg_deprecs :: Deprecations, -- ...Deprecations
tcg_insts :: [DFunId], -- ...Instances
- tcg_rules :: [RuleDecl Id], -- ...Rules
- tcg_fords :: [ForeignDecl Id] -- ...Foreign import & exports
+ tcg_rules :: [LRuleDecl Id], -- ...Rules
+ tcg_fords :: [LForeignDecl Id] -- ...Foreign import & exports
}
\end{code}
data TcLclEnv -- Changes as we move inside an expression
-- Discarded after typecheck/rename; not passed on to desugarer
= TcLclEnv {
- tcl_loc :: SrcLoc, -- Source location
+ tcl_loc :: SrcSpan, -- Source span
tcl_ctxt :: ErrCtxt, -- Error context
tcl_errs :: TcRef Messages, -- Place to accumulate errors
tcl_arrow_ctxt :: ArrowCtxt, -- Arrow-notation context
tcl_rdr :: LocalRdrEnv, -- Local name envt
+ -- Maintained during renaming, of course, but also during
+ -- type checking, solely so that when renaming a Template-Haskell
+ -- splice we have the right environment for the renamer.
+ --
-- Does *not* include global name envt; may shadow it
-- Includes both ordinary variables and type variables;
-- they are kept distinct because tyvar have a different
= AGlobal TyThing -- Used only in the return type of a lookup
| ATcId TcId ThLevel ProcLevel -- Ids defined in this module; may not be fully zonked
| ATyVar TyVar -- Type variables
- | ARecTyCon TcKind -- Used temporarily, during kind checking, for the
- | ARecClass TcKind -- tycons and clases in this recursive group
+ | AThing TcKind -- Used temporarily, during kind checking, for the
+ -- tycons and clases in this recursive group
instance Outputable TcTyThing where -- Debugging only
ppr (AGlobal g) = text "AGlobal" <+> ppr g
ppr (ATcId g tl pl) = text "ATcId" <+> ppr g <+> ppr tl <+> ppr pl
ppr (ATyVar t) = text "ATyVar" <+> ppr t
- ppr (ARecTyCon k) = text "ARecTyCon" <+> ppr k
- ppr (ARecClass k) = text "ARecClass" <+> ppr k
+ ppr (AThing k) = text "AThing" <+> ppr k
\end{code}
\begin{code}
-- combine stuff coming from different (unqualified)
-- imports of the same module
- imp_mods :: ModuleEnv (Module, Maybe Bool),
+ imp_mods :: ModuleEnv (Module, Maybe Bool, SrcSpan),
-- Domain is all directly-imported modules
-- Maybe value answers the question "is the import restricted?"
-- Nothing => unrestricted import (e.g., "import Foo")
functions that deal with it.
\begin{code}
-data InstLoc = InstLoc InstOrigin SrcLoc ErrCtxt
+data InstLoc = InstLoc InstOrigin SrcSpan ErrCtxt
instLocSrcLoc :: InstLoc -> SrcLoc
-instLocSrcLoc (InstLoc _ src_loc _) = src_loc
+instLocSrcLoc (InstLoc _ src_span _) = srcSpanStart src_span
+
+instLocSrcSpan :: InstLoc -> SrcSpan
+instLocSrcSpan (InstLoc _ src_span _) = src_span
data InstOrigin
= OccurrenceOf Name -- Occurrence of an overloaded identifier
- | IPOcc (IPName Name) -- Occurrence of an implicit parameter
- | IPBind (IPName Name) -- Binding site of an implicit parameter
+ | IPOccOrigin (IPName Name) -- Occurrence of an implicit parameter
+ | IPBindOrigin (IPName Name) -- Binding site of an implicit parameter
| RecordUpdOrigin
| LiteralOrigin HsOverLit -- Occurrence of a literal
- | PatOrigin RenamedPat
+ | PatOrigin (Pat Name)
- | ArithSeqOrigin RenamedArithSeqInfo -- [x..], [x..y] etc
- | PArrSeqOrigin RenamedArithSeqInfo -- [:x..y:] and [:x,y..z:]
+ | ArithSeqOrigin (ArithSeqInfo Name) -- [x..], [x..y] etc
+ | PArrSeqOrigin (ArithSeqInfo Name) -- [:x..y:] and [:x,y..z:]
| SignatureOrigin -- A dict created from a type signature
| Rank2Origin -- A dict created when typechecking the argument
where
pp_orig (OccurrenceOf name)
= hsep [ptext SLIT("use of"), quotes (ppr name)]
- pp_orig (IPOcc name)
+ pp_orig (IPOccOrigin name)
= hsep [ptext SLIT("use of implicit parameter"), quotes (ppr name)]
- pp_orig (IPBind name)
+ pp_orig (IPBindOrigin name)
= hsep [ptext SLIT("binding for implicit parameter"), quotes (ppr name)]
pp_orig RecordUpdOrigin
= ptext SLIT("a record update")
projects / ghc-hetmet.git / blobdiff