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Diffstat (limited to 'compiler/main/HscStats.lhs')
| -rw-r--r-- | compiler/main/HscStats.lhs | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/compiler/main/HscStats.lhs b/compiler/main/HscStats.lhs new file mode 100644 index 0000000000..750744af44 --- /dev/null +++ b/compiler/main/HscStats.lhs @@ -0,0 +1,160 @@ +% +% (c) The GRASP/AQUA Project, Glasgow University, 1993-1998 +% +\section[GHC_Stats]{Statistics for per-module compilations} + +\begin{code} +module HscStats ( ppSourceStats ) where + +#include "HsVersions.h" + +import HsSyn +import Outputable +import SrcLoc ( unLoc, Located(..) ) +import Char ( isSpace ) +import Bag ( bagToList ) +import Util ( count ) +\end{code} + +%************************************************************************ +%* * +\subsection{Statistics} +%* * +%************************************************************************ + +\begin{code} +ppSourceStats short (L _ (HsModule _ exports imports ldecls _)) + = (if short then hcat else vcat) + (map pp_val + [("ExportAll ", export_all), -- 1 if no export list + ("ExportDecls ", export_ds), + ("ExportModules ", export_ms), + ("Imports ", import_no), + (" ImpQual ", import_qual), + (" ImpAs ", import_as), + (" ImpAll ", import_all), + (" ImpPartial ", import_partial), + (" ImpHiding ", import_hiding), + ("FixityDecls ", fixity_sigs), + ("DefaultDecls ", default_ds), + ("TypeDecls ", type_ds), + ("DataDecls ", data_ds), + ("NewTypeDecls ", newt_ds), + ("DataConstrs ", data_constrs), + ("DataDerivings ", data_derivs), + ("ClassDecls ", class_ds), + ("ClassMethods ", class_method_ds), + ("DefaultMethods ", default_method_ds), + ("InstDecls ", inst_ds), + ("InstMethods ", inst_method_ds), + ("TypeSigs ", bind_tys), + ("ValBinds ", val_bind_ds), + ("FunBinds ", fn_bind_ds), + ("InlineMeths ", method_inlines), + ("InlineBinds ", bind_inlines), +-- ("SpecialisedData ", data_specs), +-- ("SpecialisedInsts ", inst_specs), + ("SpecialisedMeths ", method_specs), + ("SpecialisedBinds ", bind_specs) + ]) + where + decls = map unLoc ldecls + + pp_val (str, 0) = empty + pp_val (str, n) + | not short = hcat [text str, int n] + | otherwise = hcat [text (trim str), equals, int n, semi] + + trim ls = takeWhile (not.isSpace) (dropWhile isSpace ls) + + (fixity_sigs, bind_tys, bind_specs, bind_inlines) + = count_sigs [d | SigD d <- decls] + -- NB: this omits fixity decls on local bindings and + -- in class decls. ToDo + + tycl_decls = [d | TyClD d <- decls] + (class_ds, type_ds, data_ds, newt_ds) = countTyClDecls tycl_decls + + inst_decls = [d | InstD d <- decls] + inst_ds = length inst_decls + default_ds = count (\ x -> case x of { DefD{} -> True; _ -> False}) decls + val_decls = [d | ValD d <- decls] + + real_exports = case exports of { Nothing -> []; Just es -> es } + n_exports = length real_exports + export_ms = count (\ e -> case unLoc e of { IEModuleContents{} -> True;_ -> False}) + real_exports + export_ds = n_exports - export_ms + export_all = case exports of { Nothing -> 1; other -> 0 } + + (val_bind_ds, fn_bind_ds) + = foldr add2 (0,0) (map count_bind val_decls) + + (import_no, import_qual, import_as, import_all, import_partial, import_hiding) + = foldr add6 (0,0,0,0,0,0) (map import_info imports) + (data_constrs, data_derivs) + = foldr add2 (0,0) (map data_info tycl_decls) + (class_method_ds, default_method_ds) + = foldr add2 (0,0) (map class_info tycl_decls) + (inst_method_ds, method_specs, method_inlines) + = foldr add3 (0,0,0) (map inst_info inst_decls) + + count_bind (PatBind { pat_lhs = L _ (VarPat n) }) = (1,0) + count_bind (PatBind {}) = (0,1) + count_bind (FunBind {}) = (0,1) + + count_sigs sigs = foldr add4 (0,0,0,0) (map sig_info sigs) + + sig_info (FixSig _) = (1,0,0,0) + sig_info (TypeSig _ _) = (0,1,0,0) + sig_info (SpecSig _ _ _) = (0,0,1,0) + sig_info (InlineSig _ _) = (0,0,0,1) + sig_info _ = (0,0,0,0) + + import_info (L _ (ImportDecl _ _ qual as spec)) + = add6 (1, qual_info qual, as_info as, 0,0,0) (spec_info spec) + qual_info False = 0 + qual_info True = 1 + as_info Nothing = 0 + as_info (Just _) = 1 + spec_info Nothing = (0,0,0,1,0,0) + spec_info (Just (False, _)) = (0,0,0,0,1,0) + spec_info (Just (True, _)) = (0,0,0,0,0,1) + + data_info (TyData {tcdCons = cs, tcdDerivs = derivs}) + = (length cs, case derivs of Nothing -> 0 + Just ds -> length ds) + data_info other = (0,0) + + class_info decl@(ClassDecl {}) + = case count_sigs (map unLoc (tcdSigs decl)) of + (_,classops,_,_) -> + (classops, addpr (foldr add2 (0,0) (map (count_bind.unLoc) (bagToList (tcdMeths decl))))) + class_info other = (0,0) + + inst_info (InstDecl _ inst_meths inst_sigs) + = case count_sigs (map unLoc inst_sigs) of + (_,_,ss,is) -> + (addpr (foldr add2 (0,0) (map (count_bind.unLoc) (bagToList inst_meths))), ss, is) + + addpr :: (Int,Int) -> Int + add2 :: (Int,Int) -> (Int,Int) -> (Int, Int) + add3 :: (Int,Int,Int) -> (Int,Int,Int) -> (Int, Int, Int) + add4 :: (Int,Int,Int,Int) -> (Int,Int,Int,Int) -> (Int, Int, Int, Int) + add6 :: (Int,Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int, Int) + + addpr (x,y) = x+y + add2 (x1,x2) (y1,y2) = (x1+y1,x2+y2) + add3 (x1,x2,x3) (y1,y2,y3) = (x1+y1,x2+y2,x3+y3) + add4 (x1,x2,x3,x4) (y1,y2,y3,y4) = (x1+y1,x2+y2,x3+y3,x4+y4) + add6 (x1,x2,x3,x4,x5,x6) (y1,y2,y3,y4,y5,y6) = (x1+y1,x2+y2,x3+y3,x4+y4,x5+y5,x6+y6) +\end{code} + + + + + + + + + |