Id typecheck/TcHsSyn
\begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
module HsUtils where
-#include "HsVersions.h"
-
import HsBinds
import HsExpr
import HsPat
mkHsWrapCoI :: CoercionI -> HsExpr id -> HsExpr id
mkHsWrapCoI IdCo e = e
-mkHsWrapCoI (ACo co) e = mkHsWrap (WpCo co) e
+mkHsWrapCoI (ACo co) e = mkHsWrap (WpCast co) e
coiToHsWrapper :: CoercionI -> HsWrapper
coiToHsWrapper IdCo = idHsWrapper
-coiToHsWrapper (ACo co) = WpCo co
+coiToHsWrapper (ACo co) = WpCast co
mkHsLam :: [LPat id] -> LHsExpr id -> LHsExpr id
mkHsLam pats body = mkHsPar (L (getLoc body) (HsLam matches))
-- These are the bits of syntax that contain rebindable names
-- See RnEnv.lookupSyntaxName
-mkHsIntegral i = HsIntegral i noSyntaxExpr
-mkHsFractional f = HsFractional f noSyntaxExpr
-mkHsIsString s = HsIsString s noSyntaxExpr
+mkHsIntegral :: Integer -> PostTcType -> HsOverLit id
+mkHsFractional :: Rational -> PostTcType -> HsOverLit id
+mkHsIsString :: FastString -> PostTcType -> HsOverLit id
+mkHsDo :: HsStmtContext Name -> [LStmt id] -> LHsExpr id -> HsExpr id
+
+mkNPat :: HsOverLit id -> Maybe (SyntaxExpr id) -> Pat id
+mkNPlusKPat :: Located id -> HsOverLit id -> Pat id
+
+mkTransformStmt :: [LStmt idL] -> LHsExpr idR -> StmtLR idL idR
+mkTransformByStmt :: [LStmt idL] -> LHsExpr idR -> LHsExpr idR -> StmtLR idL idR
+
+mkGroupUsingStmt :: [LStmt idL] -> LHsExpr idR -> StmtLR idL idR
+mkGroupByStmt :: [LStmt idL] -> LHsExpr idR -> StmtLR idL idR
+mkGroupByUsingStmt :: [LStmt idL] -> LHsExpr idR -> LHsExpr idR -> StmtLR idL idR
+
+mkExprStmt :: LHsExpr idR -> StmtLR idL idR
+mkBindStmt :: LPat idL -> LHsExpr idR -> StmtLR idL idR
+mkRecStmt :: [LStmtLR idL idR] -> StmtLR idL idR
+
+
+mkHsIntegral i = OverLit (HsIntegral i) noRebindableInfo noSyntaxExpr
+mkHsFractional f = OverLit (HsFractional f) noRebindableInfo noSyntaxExpr
+mkHsIsString s = OverLit (HsIsString s) noRebindableInfo noSyntaxExpr
+
+noRebindableInfo :: Bool
+noRebindableInfo = error "noRebindableInfo" -- Just another placeholder;
+
mkHsDo ctxt stmts body = HsDo ctxt stmts body placeHolderType
mkNPat lit neg = NPat lit neg noSyntaxExpr
mkNPlusKPat id lit = NPlusKPat id lit noSyntaxExpr noSyntaxExpr
+mkTransformStmt stmts usingExpr = TransformStmt (stmts, []) usingExpr Nothing
+mkTransformByStmt stmts usingExpr byExpr = TransformStmt (stmts, []) usingExpr (Just byExpr)
+
+mkGroupUsingStmt stmts usingExpr = GroupStmt (stmts, []) (GroupByNothing usingExpr)
+mkGroupByStmt stmts byExpr = GroupStmt (stmts, []) (GroupBySomething (Right noSyntaxExpr) byExpr)
+mkGroupByUsingStmt stmts byExpr usingExpr = GroupStmt (stmts, []) (GroupBySomething (Left usingExpr) byExpr)
+
mkExprStmt expr = ExprStmt expr noSyntaxExpr placeHolderType
mkBindStmt pat expr = BindStmt pat expr noSyntaxExpr noSyntaxExpr
mkRecStmt stmts = RecStmt stmts [] [] [] emptyLHsBinds
-------------------------------
--- A useful function for building @OpApps@. The operator is always a
-- variable, and we don't know the fixity yet.
+mkHsOpApp :: LHsExpr id -> id -> LHsExpr id -> HsExpr id
mkHsOpApp e1 op e2 = OpApp e1 (noLoc (HsVar op)) (error "mkOpApp:fixity") e2
+mkHsSplice :: LHsExpr RdrName -> HsSplice RdrName
mkHsSplice e = HsSplice unqualSplice e
-unqualSplice = mkRdrUnqual (mkVarOccFS FSLIT("splice"))
+unqualSplice :: RdrName
+unqualSplice = mkRdrUnqual (mkVarOccFS (fsLit "splice"))
-- A name (uniquified later) to
-- identify the splice
+mkHsQuasiQuote :: RdrName -> SrcSpan -> FastString -> HsQuasiQuote RdrName
+mkHsQuasiQuote quoter span quote = HsQuasiQuote unqualQuasiQuote quoter span quote
+
+unqualQuasiQuote :: RdrName
+unqualQuasiQuote = mkRdrUnqual (mkVarOccFS (fsLit "quasiquote"))
+ -- A name (uniquified later) to
+ -- identify the quasi-quote
+
+mkHsString :: String -> HsLit
mkHsString s = HsString (mkFastString s)
-------------
nlHsApp :: LHsExpr id -> LHsExpr id -> LHsExpr id
nlHsApp f x = noLoc (HsApp f x)
+nlHsIntLit :: Integer -> LHsExpr id
nlHsIntLit n = noLoc (HsLit (HsInt n))
nlHsApps :: id -> [LHsExpr id] -> LHsExpr id
nlWildConPat con = noLoc (ConPatIn (noLoc (getRdrName con))
(PrefixCon (nOfThem (dataConSourceArity con) nlWildPat)))
+nlTuplePat :: [LPat id] -> Boxity -> LPat id
nlTuplePat pats box = noLoc (TuplePat pats box placeHolderType)
+
+nlWildPat :: LPat id
nlWildPat = noLoc (WildPat placeHolderType) -- Pre-typechecking
nlHsDo :: HsStmtContext Name -> [LStmt id] -> LHsExpr id -> LHsExpr id
nlHsDo ctxt stmts body = noLoc (mkHsDo ctxt stmts body)
+nlHsOpApp :: LHsExpr id -> id -> LHsExpr id -> LHsExpr id
nlHsOpApp e1 op e2 = noLoc (mkHsOpApp e1 op e2)
+nlHsLam :: LMatch id -> LHsExpr id
+nlHsPar :: LHsExpr id -> LHsExpr id
+nlHsIf :: LHsExpr id -> LHsExpr id -> LHsExpr id -> LHsExpr id
+nlHsCase :: LHsExpr id -> [LMatch id] -> LHsExpr id
+nlTuple :: [LHsExpr id] -> Boxity -> LHsExpr id
+nlList :: [LHsExpr id] -> LHsExpr id
+
nlHsLam match = noLoc (HsLam (mkMatchGroup [match]))
nlHsPar e = noLoc (HsPar e)
nlHsIf cond true false = noLoc (HsIf cond true false)
nlTuple exprs box = noLoc (ExplicitTuple exprs box)
nlList exprs = noLoc (ExplicitList placeHolderType exprs)
+nlHsAppTy :: LHsType name -> LHsType name -> LHsType name
+nlHsTyVar :: name -> LHsType name
+nlHsFunTy :: LHsType name -> LHsType name -> LHsType name
+
nlHsAppTy f t = noLoc (HsAppTy f t)
nlHsTyVar x = noLoc (HsTyVar x)
nlHsFunTy a b = noLoc (HsFunTy a b)
+nlHsTyConApp :: name -> [LHsType name] -> LHsType name
nlHsTyConApp tycon tys = foldl nlHsAppTy (nlHsTyVar tycon) tys
\end{code}
-> [([LPat id], LHsExpr id)]
-> LHsBind id
-mk_FunBind loc fun [] = panic "TcGenDeriv:mk_FunBind"
+mk_FunBind _ _ [] = panic "TcGenDeriv:mk_FunBind"
mk_FunBind loc fun pats_and_exprs
= L loc $ mkFunBind (L loc fun) matches
where
collectLocalBinders EmptyLocalBinds = []
collectHsValBinders :: HsValBindsLR idL idR -> [Located idL]
-collectHsValBinders (ValBindsIn binds sigs) = collectHsBindLocatedBinders binds
-collectHsValBinders (ValBindsOut binds sigs) = foldr collect_one [] binds
+collectHsValBinders (ValBindsIn binds _) = collectHsBindLocatedBinders binds
+collectHsValBinders (ValBindsOut binds _) = foldr collect_one [] binds
where
collect_one (_,binds) acc = foldrBag (collectAcc . unLoc) acc binds
collectAcc (PatBind { pat_lhs = p }) acc = collectLocatedPatBinders p ++ acc
collectAcc (FunBind { fun_id = f }) acc = f : acc
collectAcc (VarBind { var_id = f }) acc = noLoc f : acc
-collectAcc (AbsBinds { abs_exports = dbinds, abs_binds = binds }) acc
+collectAcc (AbsBinds { abs_exports = dbinds, abs_binds = _binds }) acc
= [noLoc dp | (_,dp,_,_) <- dbinds] ++ acc
-- ++ foldr collectAcc acc binds
-- I don't think we want the binders from the nested binds
collectStmtBinders (ExprStmt _ _ _) = []
collectStmtBinders (ParStmt xs) = collectLStmtsBinders
$ concatMap fst xs
+collectStmtBinders (TransformStmt (stmts, _) _ _) = collectLStmtsBinders stmts
+collectStmtBinders (GroupStmt (stmts, _) _) = collectLStmtsBinders stmts
collectStmtBinders (RecStmt ss _ _ _ _) = collectLStmtsBinders ss
\end{code}
collectLocatedPatsBinders pats = foldr collectl [] pats
---------------------
+collectl :: LPat name -> [Located name] -> [Located name]
collectl (L l pat) bndrs
= go pat
where
go (LazyPat pat) = collectl pat bndrs
go (BangPat pat) = collectl pat bndrs
go (AsPat a pat) = a : collectl pat bndrs
- go (ViewPat exp pat _) = collectl pat bndrs
+ go (ViewPat _ pat _) = collectl pat bndrs
go (ParPat pat) = collectl pat bndrs
go (ListPat pats _) = foldr collectl bndrs pats
go (PArrPat pats _) = foldr collectl bndrs pats
go (TuplePat pats _ _) = foldr collectl bndrs pats
- go (ConPatIn c ps) = foldr collectl bndrs (hsConPatArgs ps)
+ go (ConPatIn _ ps) = foldr collectl bndrs (hsConPatArgs ps)
go (ConPatOut {pat_args=ps}) = foldr collectl bndrs (hsConPatArgs ps)
-- See Note [Dictionary binders in ConPatOut]
go (LitPat _) = bndrs
go (SigPatIn pat _) = collectl pat bndrs
go (SigPatOut pat _) = collectl pat bndrs
- go (TypePat ty) = bndrs
- go (CoPat _ pat ty) = collectl (noLoc pat) bndrs
+ go (QuasiQuotePat _) = bndrs
+ go (TypePat _) = bndrs
+ go (CoPat _ pat _) = collectl (noLoc pat) bndrs
\end{code}
Note [Dictionary binders in ConPatOut]
collectSigTysFromPat :: InPat name -> [LHsType name]
collectSigTysFromPat pat = collect_lpat pat []
+collect_lpat :: InPat name -> [LHsType name] -> [LHsType name]
collect_lpat pat acc = collect_pat (unLoc pat) acc
+collect_pat :: Pat name -> [LHsType name] -> [LHsType name]
collect_pat (SigPatIn pat ty) acc = collect_lpat pat (ty:acc)
collect_pat (TypePat ty) acc = ty:acc
collect_pat (LazyPat pat) acc = collect_lpat pat acc
collect_pat (BangPat pat) acc = collect_lpat pat acc
-collect_pat (AsPat a pat) acc = collect_lpat pat acc
+collect_pat (AsPat _ pat) acc = collect_lpat pat acc
collect_pat (ParPat pat) acc = collect_lpat pat acc
collect_pat (ListPat pats _) acc = foldr collect_lpat acc pats
collect_pat (PArrPat pats _) acc = foldr collect_lpat acc pats
collect_pat (TuplePat pats _ _) acc = foldr collect_lpat acc pats
-collect_pat (ConPatIn c ps) acc = foldr collect_lpat acc (hsConPatArgs ps)
-collect_pat other acc = acc -- Literals, vars, wildcard
+collect_pat (ConPatIn _ ps) acc = foldr collect_lpat acc (hsConPatArgs ps)
+collect_pat _ acc = acc -- Literals, vars, wildcard
\end{code}
projects / ghc-hetmet.git / blobdiff