import Var
import Id
import IdInfo
-import NewDemand
-#ifdef OLD_STRICTNESS
-import Id
-import IdInfo
-#endif
-
+import Demand
import DataCon
import TyCon
import Type
import Coercion
+import StaticFlags
import BasicTypes
import Util
import Outputable
import FastString
+import Data.Maybe
\end{code}
%************************************************************************
pprTopBind :: OutputableBndr a => Bind a -> SDoc
pprTopBind (NonRec binder expr)
- = ppr_binding (binder,expr) $$ text ""
+ = ppr_binding (binder,expr) $$ blankLine
-pprTopBind (Rec binds)
+pprTopBind (Rec [])
+ = ptext (sLit "Rec { }")
+pprTopBind (Rec (b:bs))
= vcat [ptext (sLit "Rec {"),
- vcat (map ppr_binding binds),
+ ppr_binding b,
+ vcat [blankLine $$ ppr_binding b | b <- bs],
ptext (sLit "end Rec }"),
- text ""]
+ blankLine]
\end{code}
\begin{code}
-- The function adds parens in context that need
-- an atomic value (e.g. function args)
-ppr_expr add_par (Type ty) = add_par (ptext (sLit "TYPE") <+> ppr ty) -- Wierd
+ppr_expr add_par (Type ty) = add_par (ptext (sLit "TYPE") <+> ppr ty) -- Wierd
+
+ppr_expr add_par (Coercion co) = add_par (ptext (sLit "CO") <+> ppr co)
ppr_expr _ (Var name) = ppr name
ppr_expr _ (Lit lit) = ppr lit
ppr_expr add_par (Cast expr co)
= add_par $
sep [pprParendExpr expr,
- ptext (sLit "`cast`") <+> parens (pprCo co)]
+ ptext (sLit "`cast`") <+> pprCo co]
where
- pprCo co = sep [ppr co, dcolon <+> ppr (coercionKindPredTy co)]
+ pprCo co | opt_SuppressCoercions = ptext (sLit "...")
+ | otherwise = parens
+ $ sep [ppr co, dcolon <+> pprEqPred (coercionKind co)]
ppr_expr add_par expr@(Lam _ _)
}
ppr_expr add_par (Case expr var ty [(con,args,rhs)])
+ | opt_PprCaseAsLet
+ = add_par $
+ sep [sep [ ptext (sLit "let")
+ <+> char '{'
+ <+> ppr_case_pat con args
+ <+> ptext (sLit "~")
+ <+> ppr_bndr var
+ , ptext (sLit "<-")
+ <+> ppr_expr id expr
+ , char '}'
+ <+> ptext (sLit "in")
+ ]
+ , pprCoreExpr rhs
+ ]
+
+ | otherwise
= add_par $
sep [sep [ptext (sLit "case") <+> pprCoreExpr expr,
ifPprDebug (braces (ppr ty)),
sep [ptext (sLit "of") <+> ppr_bndr var,
- char '{' <+> ppr_case_pat con args]
+ char '{' <+> ppr_case_pat con args <+> arrow]
],
pprCoreExpr rhs,
char '}'
<+> pprCoreExpr expr
<+> ifPprDebug (braces (ppr ty)),
ptext (sLit "of") <+> ppr_bndr var <+> char '{'],
- nest 2 (sep (punctuate semi (map pprCoreAlt alts))),
+ nest 2 (vcat (punctuate semi (map pprCoreAlt alts))),
char '}'
]
where
pprCoreAlt :: OutputableBndr a => (AltCon, [a] , Expr a) -> SDoc
pprCoreAlt (con, args, rhs)
- = hang (ppr_case_pat con args) 2 (pprCoreExpr rhs)
+ = hang (ppr_case_pat con args <+> arrow) 2 (pprCoreExpr rhs)
ppr_case_pat :: OutputableBndr a => AltCon -> [a] -> SDoc
ppr_case_pat (DataAlt dc) args
| isTupleTyCon tc
- = tupleParens (tupleTyConBoxity tc) (hsep (punctuate comma (map ppr_bndr args))) <+> arrow
+ = tupleParens (tupleTyConBoxity tc) (hsep (punctuate comma (map ppr_bndr args)))
where
ppr_bndr = pprBndr CaseBind
tc = dataConTyCon dc
ppr_case_pat con args
- = ppr con <+> sep (map ppr_bndr args) <+> arrow
+ = ppr con <+> sep (map ppr_bndr args)
where
ppr_bndr = pprBndr CaseBind
+
+-- | Pretty print the argument in a function application.
pprArg :: OutputableBndr a => Expr a -> SDoc
-pprArg (Type ty) = ptext (sLit "@") <+> pprParendType ty
-pprArg expr = pprParendExpr expr
+pprArg (Type ty)
+ | opt_SuppressTypeApplications = empty
+ | otherwise = ptext (sLit "@") <+> pprParendType ty
+pprArg (Coercion co) = ptext (sLit "@~") <+> pprParendCo co
+pprArg expr = pprParendExpr expr
\end{code}
Other printing bits-and-bobs used with the general @pprCoreBinding@
pprCoreBinder :: BindingSite -> Var -> SDoc
pprCoreBinder LetBind binder
| isTyVar binder = pprKindedTyVarBndr binder
- | otherwise
- = vcat [sig, pprIdDetails binder, pragmas]
- where
- sig = pprTypedBinder binder
- pragmas = ppIdInfo binder (idInfo binder)
+ | otherwise = pprTypedBinder binder $$
+ ppIdInfo binder (idInfo binder)
-- Lambda bound type variables are preceded by "@"
-pprCoreBinder LambdaBind bndr
- | isDeadBinder bndr
- = getPprStyle $ \ sty ->
- if debugStyle sty then
- parens (pprTypedBinder bndr)
- else
- char '_'
- | otherwise
- = parens (pprTypedBinder bndr)
-
--- Case bound things don't get a signature or a herald, unless we have debug on
-pprCoreBinder CaseBind bndr
- | isDeadBinder bndr -- False for tyvars
- = ptext (sLit "_")
- | otherwise
+pprCoreBinder bind_site bndr
= getPprStyle $ \ sty ->
- if debugStyle sty then
- parens (pprTypedBinder bndr)
- else
- if isDeadBinder bndr then char '_'
- else pprUntypedBinder bndr
+ pprTypedLCBinder bind_site (debugStyle sty) bndr
pprUntypedBinder :: Var -> SDoc
pprUntypedBinder binder
| isTyVar binder = ptext (sLit "@") <+> ppr binder -- NB: don't print kind
| otherwise = pprIdBndr binder
+pprTypedLCBinder :: BindingSite -> Bool -> Var -> SDoc
+-- For lambda and case binders, show the unfolding info (usually none)
+pprTypedLCBinder bind_site debug_on var
+ | not debug_on && isDeadBinder var = char '_'
+ | not debug_on, CaseBind <- bind_site = pprUntypedBinder var -- No parens, no kind info
+ | isTyVar var = parens (pprKindedTyVarBndr var)
+ | otherwise = parens (hang (pprIdBndr var)
+ 2 (vcat [ dcolon <+> pprType (idType var), pp_unf]))
+ where
+ unf_info = unfoldingInfo (idInfo var)
+ pp_unf | hasSomeUnfolding unf_info = ptext (sLit "Unf=") <> ppr unf_info
+ | otherwise = empty
+
pprTypedBinder :: Var -> SDoc
-- Print binder with a type or kind signature (not paren'd)
pprTypedBinder binder
- | isTyVar binder = pprKindedTyVarBndr binder
- | otherwise = pprIdBndr binder <+> dcolon <+> pprType (idType binder)
+ | isTyVar binder = pprKindedTyVarBndr binder
+ | opt_SuppressTypeSignatures = empty
+ | otherwise = hang (pprIdBndr binder) 2 (dcolon <+> pprType (idType binder))
pprKindedTyVarBndr :: TyVar -> SDoc
-- Print a type variable binder with its kind (but not if *)
pprIdBndrInfo :: IdInfo -> SDoc
pprIdBndrInfo info
+ | opt_SuppressIdInfo = empty
+ | otherwise
= megaSeqIdInfo info `seq` doc -- The seq is useful for poking on black holes
where
prag_info = inlinePragInfo info
occ_info = occInfo info
- dmd_info = newDemandInfo info
+ dmd_info = demandInfo info
lbv_info = lbvarInfo info
- no_info = isAlwaysActive prag_info && isNoOcc occ_info &&
- (case dmd_info of { Nothing -> True; Just d -> isTop d }) &&
- hasNoLBVarInfo lbv_info
-
- doc | no_info = empty
- | otherwise
- = brackets $ hsep [ppr prag_info, ppr occ_info,
- ppr dmd_info, ppr lbv_info
-#ifdef OLD_STRICTNESS
- , ppr (demandInfo id)
-#endif
- ]
+ has_prag = not (isDefaultInlinePragma prag_info)
+ has_occ = not (isNoOcc occ_info)
+ has_dmd = case dmd_info of { Nothing -> False; Just d -> not (isTop d) }
+ has_lbv = not (hasNoLBVarInfo lbv_info)
+
+ doc = showAttributes
+ [ (has_prag, ptext (sLit "InlPrag=") <> ppr prag_info)
+ , (has_occ, ptext (sLit "Occ=") <> ppr occ_info)
+ , (has_dmd, ptext (sLit "Dmd=") <> ppr dmd_info)
+ , (has_lbv , ptext (sLit "Lbv=") <> ppr lbv_info)
+ ]
\end{code}
-----------------------------------------------------
--- IdInfo
+-- IdDetails and IdInfo
-----------------------------------------------------
\begin{code}
-pprIdDetails :: Id -> SDoc
-pprIdDetails id | isGlobalId id = ppr (globalIdDetails id)
- | isExportedId id = ptext (sLit "[Exported]")
- | otherwise = empty
-
ppIdInfo :: Id -> IdInfo -> SDoc
-ppIdInfo _ info
- = brackets $
- vcat [ ppArityInfo a,
- ppCafInfo (cafInfo info),
-#ifdef OLD_STRICTNESS
- ppStrictnessInfo s,
- ppCprInfo m,
-#endif
- pprNewStrictness (newStrictnessInfo info),
- pprInlineInfo (unfoldingInfo info),
- if null rules then empty
- else ptext (sLit "RULES:") <+> vcat (map pprRule rules)
- -- Inline pragma, occ, demand, lbvar info
+ppIdInfo id info
+ | opt_SuppressIdInfo = empty
+ | otherwise
+ = showAttributes
+ [ (True, pp_scope <> ppr (idDetails id))
+ , (has_arity, ptext (sLit "Arity=") <> int arity)
+ , (has_caf_info, ptext (sLit "Caf=") <> ppr caf_info)
+ , (has_strictness, ptext (sLit "Str=") <> pprStrictness str_info)
+ , (has_unf, ptext (sLit "Unf=") <> ppr unf_info)
+ , (not (null rules), ptext (sLit "RULES:") <+> vcat (map pprRule rules))
+ ] -- Inline pragma, occ, demand, lbvar info
-- printed out with all binders (when debug is on);
-- see PprCore.pprIdBndr
- ]
where
- a = arityInfo info
-#ifdef OLD_STRICTNESS
- s = strictnessInfo info
- m = cprInfo info
-#endif
+ pp_scope | isGlobalId id = ptext (sLit "GblId")
+ | isExportedId id = ptext (sLit "LclIdX")
+ | otherwise = ptext (sLit "LclId")
+
+ arity = arityInfo info
+ has_arity = arity /= 0
+
+ caf_info = cafInfo info
+ has_caf_info = not (mayHaveCafRefs caf_info)
+
+ str_info = strictnessInfo info
+ has_strictness = isJust str_info
+
+ unf_info = unfoldingInfo info
+ has_unf = hasSomeUnfolding unf_info
+
rules = specInfoRules (specInfo info)
+
+showAttributes :: [(Bool,SDoc)] -> SDoc
+showAttributes stuff
+ | null docs = empty
+ | otherwise = brackets (sep (punctuate comma docs))
+ where
+ docs = [d | (True,d) <- stuff]
\end{code}
-----------------------------------------------------
\begin{code}
instance Outputable UnfoldingGuidance where
- ppr UnfoldNever = ptext (sLit "NEVER")
- ppr (UnfoldIfGoodArgs { ug_arity = v, ug_args = cs
- , ug_size = size, ug_res = discount })
- = hsep [ ptext (sLit "IF_ARGS"), int v,
+ ppr UnfNever = ptext (sLit "NEVER")
+ ppr (UnfWhen unsat_ok boring_ok)
+ = ptext (sLit "ALWAYS_IF") <>
+ parens (ptext (sLit "unsat_ok=") <> ppr unsat_ok <> comma <>
+ ptext (sLit "boring_ok=") <> ppr boring_ok)
+ ppr (UnfIfGoodArgs { ug_args = cs, ug_size = size, ug_res = discount })
+ = hsep [ ptext (sLit "IF_ARGS"),
brackets (hsep (map int cs)),
int size,
int discount ]
+instance Outputable UnfoldingSource where
+ ppr InlineCompulsory = ptext (sLit "Compulsory")
+ ppr (InlineWrapper w) = ptext (sLit "Worker=") <> ppr w
+ ppr InlineStable = ptext (sLit "InlineStable")
+ ppr InlineRhs = ptext (sLit "<vanilla>")
+
instance Outputable Unfolding where
- ppr NoUnfolding = ptext (sLit "No unfolding")
- ppr (OtherCon cs) = ptext (sLit "OtherCon") <+> ppr cs
- ppr (CompulsoryUnfolding e) = ptext (sLit "Compulsory") <+> ppr e
- ppr (InlineRule { uf_tmpl = e, uf_is_value = hnf, uf_arity = arity, uf_worker = wkr })
- = ptext (sLit "INLINE") <+> sep [ppr arity <+> ppr hnf <+> ppr wkr, ppr e]
- ppr (CoreUnfolding e top hnf cheap g)
- = ptext (sLit "Unf") <+> sep [ppr top <+> ppr hnf <+> ppr cheap <+> ppr g,
- ppr e]
-
-pprInlineInfo :: Unfolding -> SDoc -- Print an inline RULE
-pprInlineInfo unf | isInlineRule unf = ppr unf
- | otherwise = empty
+ ppr NoUnfolding = ptext (sLit "No unfolding")
+ ppr (OtherCon cs) = ptext (sLit "OtherCon") <+> ppr cs
+ ppr (DFunUnfolding ar con ops) = ptext (sLit "DFun") <> parens (ptext (sLit "arity=") <> int ar)
+ <+> ppr con <+> brackets (pprWithCommas ppr ops)
+ ppr (CoreUnfolding { uf_src = src
+ , uf_tmpl=rhs, uf_is_top=top, uf_is_value=hnf
+ , uf_is_conlike=conlike, uf_is_cheap=cheap
+ , uf_expandable=exp, uf_guidance=g, uf_arity=arity})
+ = ptext (sLit "Unf") <> braces (pp_info $$ pp_rhs)
+ where
+ pp_info = fsep $ punctuate comma
+ [ ptext (sLit "Src=") <> ppr src
+ , ptext (sLit "TopLvl=") <> ppr top
+ , ptext (sLit "Arity=") <> int arity
+ , ptext (sLit "Value=") <> ppr hnf
+ , ptext (sLit "ConLike=") <> ppr conlike
+ , ptext (sLit "Cheap=") <> ppr cheap
+ , ptext (sLit "Expandable=") <> ppr exp
+ , ptext (sLit "Guidance=") <> ppr g ]
+ pp_tmpl = ptext (sLit "Tmpl=") <+> ppr rhs
+ pp_rhs | isStableSource src = pp_tmpl
+ | otherwise = empty
+ -- Don't print the RHS or we get a quadratic
+ -- blowup in the size of the printout!
+
+instance Outputable e => Outputable (DFunArg e) where
+ ppr (DFunPolyArg e) = braces (ppr e)
+ ppr (DFunConstArg e) = ppr e
+ ppr (DFunLamArg i) = char '<' <> int i <> char '>'
\end{code}
-----------------------------------------------------
projects / ghc-hetmet.git / blobdiff