2 % (c) The GRASP/AQUA Project, Glasgow University, 1993-1998
4 \section[GHC_Stats]{Statistics for per-module compilations}
7 module HscStats ( ppSourceStats ) where
9 #include "HsVersions.h"
13 import Char ( isSpace )
17 %************************************************************************
19 \subsection{Statistics}
21 %************************************************************************
24 ppSourceStats short (HsModule name version exports imports decls _ src_loc)
25 = (if short then hcat else vcat)
27 [("ExportAll ", export_all), -- 1 if no export list
28 ("ExportDecls ", export_ds),
29 ("ExportModules ", export_ms),
30 ("Imports ", import_no),
31 (" ImpQual ", import_qual),
32 (" ImpAs ", import_as),
33 (" ImpAll ", import_all),
34 (" ImpPartial ", import_partial),
35 (" ImpHiding ", import_hiding),
36 ("FixityDecls ", fixity_ds),
37 ("DefaultDecls ", default_ds),
38 ("TypeDecls ", type_ds),
39 ("DataDecls ", data_ds),
40 ("NewTypeDecls ", newt_ds),
41 ("DataConstrs ", data_constrs),
42 ("DataDerivings ", data_derivs),
43 ("ClassDecls ", class_ds),
44 ("ClassMethods ", class_method_ds),
45 ("DefaultMethods ", default_method_ds),
46 ("InstDecls ", inst_ds),
47 ("InstMethods ", inst_method_ds),
48 ("TypeSigs ", bind_tys),
49 ("ValBinds ", val_bind_ds),
50 ("FunBinds ", fn_bind_ds),
51 ("InlineMeths ", method_inlines),
52 ("InlineBinds ", bind_inlines),
53 -- ("SpecialisedData ", data_specs),
54 -- ("SpecialisedInsts ", inst_specs),
55 ("SpecialisedMeths ", method_specs),
56 ("SpecialisedBinds ", bind_specs)
59 pp_val (str, 0) = empty
61 | not short = hcat [text str, int n]
62 | otherwise = hcat [text (trim str), equals, int n, semi]
64 trim ls = takeWhile (not.isSpace) (dropWhile isSpace ls)
66 fixity_ds = count (\ x -> case x of { FixD{} -> True; _ -> False}) decls
67 -- NB: this omits fixity decls on local bindings and
68 -- in class decls. ToDo
70 tycl_decls = [d | TyClD d <- decls]
71 (class_ds, data_ds, newt_ds, type_ds, _) = countTyClDecls tycl_decls
73 inst_decls = [d | InstD d <- decls]
74 inst_ds = length inst_decls
75 default_ds = count (\ x -> case x of { DefD{} -> True; _ -> False}) decls
76 val_decls = [d | ValD d <- decls]
78 real_exports = case exports of { Nothing -> []; Just es -> es }
79 n_exports = length real_exports
80 export_ms = count (\ e -> case e of { IEModuleContents{} -> True;_ -> False})
82 export_ds = n_exports - export_ms
83 export_all = case exports of { Nothing -> 1; other -> 0 }
85 (val_bind_ds, fn_bind_ds, bind_tys, bind_specs, bind_inlines)
86 = count_binds (foldr ThenBinds EmptyBinds val_decls)
88 (import_no, import_qual, import_as, import_all, import_partial, import_hiding)
89 = foldr add6 (0,0,0,0,0,0) (map import_info imports)
90 (data_constrs, data_derivs)
91 = foldr add2 (0,0) (map data_info tycl_decls)
92 (class_method_ds, default_method_ds)
93 = foldr add2 (0,0) (map class_info tycl_decls)
94 (inst_method_ds, method_specs, method_inlines)
95 = foldr add3 (0,0,0) (map inst_info inst_decls)
98 count_binds EmptyBinds = (0,0,0,0,0)
99 count_binds (ThenBinds b1 b2) = count_binds b1 `add5` count_binds b2
100 count_binds (MonoBind b sigs _) = case (count_monobinds b, count_sigs sigs) of
101 ((vs,fs),(ts,_,ss,is)) -> (vs,fs,ts,ss,is)
103 count_monobinds EmptyMonoBinds = (0,0)
104 count_monobinds (AndMonoBinds b1 b2) = count_monobinds b1 `add2` count_monobinds b2
105 count_monobinds (PatMonoBind (VarPatIn n) r _) = (1,0)
106 count_monobinds (PatMonoBind p r _) = (0,1)
107 count_monobinds (FunMonoBind f _ m _) = (0,1)
109 count_mb_monobinds (Just mbs) = count_monobinds mbs
110 count_mb_monobinds Nothing = (0,0)
112 count_sigs sigs = foldr add4 (0,0,0,0) (map sig_info sigs)
114 sig_info (Sig _ _ _) = (1,0,0,0)
115 sig_info (ClassOpSig _ _ _ _) = (0,1,0,0)
116 sig_info (SpecSig _ _ _) = (0,0,1,0)
117 sig_info (InlineSig _ _ _ _) = (0,0,0,1)
118 sig_info _ = (0,0,0,0)
120 import_info (ImportDecl _ _ qual as spec _)
121 = add6 (1, qual_info qual, as_info as, 0,0,0) (spec_info spec)
126 spec_info Nothing = (0,0,0,1,0,0)
127 spec_info (Just (False, _)) = (0,0,0,0,1,0)
128 spec_info (Just (True, _)) = (0,0,0,0,0,1)
130 data_info (TyData {tcdNCons = nconstrs, tcdDerivs = derivs})
131 = (nconstrs, case derivs of {Nothing -> 0; Just ds -> length ds})
132 data_info other = (0,0)
134 class_info decl@(ClassDecl {})
135 = case count_sigs (tcdSigs decl) of
137 (classops, addpr (count_mb_monobinds (tcdMeths decl)))
138 class_info other = (0,0)
140 inst_info (InstDecl _ inst_meths inst_sigs _ _)
141 = case count_sigs inst_sigs of
143 (addpr (count_monobinds inst_meths), ss, is)
145 addpr :: (Int,Int) -> Int
146 add1 :: Int -> Int -> Int
147 add2 :: (Int,Int) -> (Int,Int) -> (Int, Int)
148 add3 :: (Int,Int,Int) -> (Int,Int,Int) -> (Int, Int, Int)
149 add4 :: (Int,Int,Int,Int) -> (Int,Int,Int,Int) -> (Int, Int, Int, Int)
150 add5 :: (Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int)
151 add6 :: (Int,Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int, Int)
155 add2 (x1,x2) (y1,y2) = (x1+y1,x2+y2)
156 add3 (x1,x2,x3) (y1,y2,y3) = (x1+y1,x2+y2,x3+y3)
157 add4 (x1,x2,x3,x4) (y1,y2,y3,y4) = (x1+y1,x2+y2,x3+y3,x4+y4)
158 add5 (x1,x2,x3,x4,x5) (y1,y2,y3,y4,y5) = (x1+y1,x2+y2,x3+y3,x4+y4,x5+y5)
159 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)