1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
{-# LANGUAGE CPP #-}
module Test.Framework.TH.Prime.Parser (
unitPropTests
, symbol, string
) where
import Control.Applicative
import Data.List
import Language.Haskell.Exts.Extension
import Language.Haskell.Exts.Parser
import Language.Haskell.Exts.Syntax hiding (VarName, Exp)
import Language.Haskell.TH hiding (Match)
import Language.Preprocessor.Cpphs
----------------------------------------------------------------
symbol :: String -> Exp
symbol = VarE . mkName
string :: String -> Exp
string = LitE . StringL
----------------------------------------------------------------
unitPropTests :: ExpQ
unitPropTests = do
file <- loc_filename <$> location
(cases, props) <- runIO $ getTests file
return $ TupE [ListE (map toCase cases), ListE (map toProp props)]
----------------------------------------------------------------
toCase :: String -> Exp
toCase = toTest "testCase"
toProp :: String -> Exp
toProp = toTest "testProperty"
toTest :: String -> String -> Exp
toTest tag nm = AppE (AppE (symbol tag ) (string nm)) (symbol nm)
----------------------------------------------------------------
getTests :: FilePath -> IO ([String], [String])
getTests file = do
ParseOk (Module _ _ _ _ _ _ decls) <- parseTest file
let funs = map fromFunBind $ filter isFunBind decls
pats = map fromPatBind $ filter isPatBind decls
names = funs ++ pats
return (filter isCase names, filter isProp names)
where
isProp = ("prop_" `isPrefixOf`)
isCase = ("case_" `isPrefixOf`)
parseTest :: FilePath -> IO (ParseResult Module)
parseTest file = do
raw <- readFile file
parseModuleWithMode (opt raw) . pack <$> go raw
where
pack = unlines . tail . map snd
go = cppIfdef "dummy" [] [] defaultBoolOptions
exts raw =
case getTopPragmas raw of
ParseOk pragmas ->
[ toExtention name
| LanguagePragma _ names <- pragmas, name <- names]
ParseFailed _ _ ->
[]
where
#if MIN_VERSION_haskell_src_exts(1, 14, 0)
toExtention = parseExtension . toStr
#else
toExtention = read . toStr
#endif
toStr (Ident str) = str
toStr (Symbol str) = str
opt raw = defaultParseMode {
#if MIN_VERSION_haskell_src_exts(1, 14, 0)
extensions = nub $ EnableExtension TemplateHaskell : exts raw
#else
extensions = nub $ TemplateHaskell : exts raw
#endif
-- to prevent "Ambiguous infix expression"
, fixities = Nothing
}
----------------------------------------------------------------
isFunBind :: Decl -> Bool
isFunBind (FunBind _) = True
isFunBind _ = False
isPatBind :: Decl -> Bool
isPatBind (PatBind _ _ _ _ _) = True
isPatBind _ = False
fromPatBind :: Decl -> String
fromPatBind (PatBind _ (PVar (Ident name)) _ _ _) = name
fromPatBind (PatBind _ (PVar (Symbol name)) _ _ _) = name
fromPatBind _ = error "fromPatBind"
fromFunBind :: Decl -> String
fromFunBind (FunBind (Match _ (Ident name) _ _ _ _:_)) = name
fromFunBind (FunBind (Match _ (Symbol name) _ _ _ _:_)) = name
fromFunBind _ = error "fromFunBind"
|
