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 )
16 %************************************************************************
18 \subsection{Statistics}
20 %************************************************************************
23 ppSourceStats short (HsModule name version exports imports decls _ src_loc)
24 = (if short then hcat else vcat)
26 [("ExportAll ", export_all), -- 1 if no export list
27 ("ExportDecls ", export_ds),
28 ("ExportModules ", export_ms),
29 ("Imports ", import_no),
30 (" ImpQual ", import_qual),
31 (" ImpAs ", import_as),
32 (" ImpAll ", import_all),
33 (" ImpPartial ", import_partial),
34 (" ImpHiding ", import_hiding),
35 ("FixityDecls ", fixity_ds),
36 ("DefaultDecls ", default_ds),
37 ("TypeDecls ", type_ds),
38 ("DataDecls ", data_ds),
39 ("NewTypeDecls ", newt_ds),
40 ("DataConstrs ", data_constrs),
41 ("DataDerivings ", data_derivs),
42 ("ClassDecls ", class_ds),
43 ("ClassMethods ", class_method_ds),
44 ("DefaultMethods ", default_method_ds),
45 ("InstDecls ", inst_ds),
46 ("InstMethods ", inst_method_ds),
47 ("TypeSigs ", bind_tys),
48 ("ValBinds ", val_bind_ds),
49 ("FunBinds ", fn_bind_ds),
50 ("InlineMeths ", method_inlines),
51 ("InlineBinds ", bind_inlines),
52 -- ("SpecialisedData ", data_specs),
53 -- ("SpecialisedInsts ", inst_specs),
54 ("SpecialisedMeths ", method_specs),
55 ("SpecialisedBinds ", bind_specs)
58 pp_val (str, 0) = empty
60 | not short = hcat [text str, int n]
61 | otherwise = hcat [text (trim str), equals, int n, semi]
63 trim ls = takeWhile (not.isSpace) (dropWhile isSpace ls)
65 fixity_ds = length [() | FixD d <- decls]
66 -- NB: this omits fixity decls on local bindings and
67 -- in class decls. ToDo
69 tycl_decls = [d | TyClD d <- decls]
70 (class_ds, data_ds, newt_ds, type_ds, _) = countTyClDecls tycl_decls
72 inst_decls = [d | InstD d <- decls]
73 inst_ds = length inst_decls
74 default_ds = length [() | DefD _ <- decls]
75 val_decls = [d | ValD d <- decls]
77 real_exports = case exports of { Nothing -> []; Just es -> es }
78 n_exports = length real_exports
79 export_ms = length [() | IEModuleContents _ <- real_exports]
80 export_ds = n_exports - export_ms
81 export_all = case exports of { Nothing -> 1; other -> 0 }
83 (val_bind_ds, fn_bind_ds, bind_tys, bind_specs, bind_inlines)
84 = count_binds (foldr ThenBinds EmptyBinds val_decls)
86 (import_no, import_qual, import_as, import_all, import_partial, import_hiding)
87 = foldr add6 (0,0,0,0,0,0) (map import_info imports)
88 (data_constrs, data_derivs)
89 = foldr add2 (0,0) (map data_info tycl_decls)
90 (class_method_ds, default_method_ds)
91 = foldr add2 (0,0) (map class_info tycl_decls)
92 (inst_method_ds, method_specs, method_inlines)
93 = foldr add3 (0,0,0) (map inst_info inst_decls)
96 count_binds EmptyBinds = (0,0,0,0,0)
97 count_binds (ThenBinds b1 b2) = count_binds b1 `add5` count_binds b2
98 count_binds (MonoBind b sigs _) = case (count_monobinds b, count_sigs sigs) of
99 ((vs,fs),(ts,_,ss,is)) -> (vs,fs,ts,ss,is)
101 count_monobinds EmptyMonoBinds = (0,0)
102 count_monobinds (AndMonoBinds b1 b2) = count_monobinds b1 `add2` count_monobinds b2
103 count_monobinds (PatMonoBind (VarPatIn n) r _) = (1,0)
104 count_monobinds (PatMonoBind p r _) = (0,1)
105 count_monobinds (FunMonoBind f _ m _) = (0,1)
107 count_mb_monobinds (Just mbs) = count_monobinds mbs
108 count_mb_monobinds Nothing = (0,0)
110 count_sigs sigs = foldr add4 (0,0,0,0) (map sig_info sigs)
112 sig_info (Sig _ _ _) = (1,0,0,0)
113 sig_info (ClassOpSig _ _ _ _) = (0,1,0,0)
114 sig_info (SpecSig _ _ _) = (0,0,1,0)
115 sig_info (InlineSig _ _ _ _) = (0,0,0,1)
116 sig_info _ = (0,0,0,0)
118 import_info (ImportDecl _ _ qual as spec _)
119 = add6 (1, qual_info qual, as_info as, 0,0,0) (spec_info spec)
124 spec_info Nothing = (0,0,0,1,0,0)
125 spec_info (Just (False, _)) = (0,0,0,0,1,0)
126 spec_info (Just (True, _)) = (0,0,0,0,0,1)
128 data_info (TyData {tcdNCons = nconstrs, tcdDerivs = derivs})
129 = (nconstrs, case derivs of {Nothing -> 0; Just ds -> length ds})
130 data_info other = (0,0)
132 class_info decl@(ClassDecl {})
133 = case count_sigs (tcdSigs decl) of
135 (classops, addpr (count_mb_monobinds (tcdMeths decl)))
136 class_info other = (0,0)
138 inst_info (InstDecl _ inst_meths inst_sigs _ _)
139 = case count_sigs inst_sigs of
141 (addpr (count_monobinds inst_meths), ss, is)
143 addpr :: (Int,Int) -> Int
144 add1 :: Int -> Int -> Int
145 add2 :: (Int,Int) -> (Int,Int) -> (Int, Int)
146 add3 :: (Int,Int,Int) -> (Int,Int,Int) -> (Int, Int, Int)
147 add4 :: (Int,Int,Int,Int) -> (Int,Int,Int,Int) -> (Int, Int, Int, Int)
148 add5 :: (Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int)
149 add6 :: (Int,Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int, Int)
153 add2 (x1,x2) (y1,y2) = (x1+y1,x2+y2)
154 add3 (x1,x2,x3) (y1,y2,y3) = (x1+y1,x2+y2,x3+y3)
155 add4 (x1,x2,x3,x4) (y1,y2,y3,y4) = (x1+y1,x2+y2,x3+y3,x4+y4)
156 add5 (x1,x2,x3,x4,x5) (y1,y2,y3,y4,y5) = (x1+y1,x2+y2,x3+y3,x4+y4,x5+y5)
157 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)