Safe Haskell	None
Language	Haskell2010

Test.DocTest.Helpers

Synopsis

rmList :: Ord a => [a] -> [a] -> [a]
data Library = Library {
- libSourceDirectories :: [FilePath]
- libCSourceDirectories :: [FilePath]
- libModules :: [ModuleName]
- libDefaultExtensions :: [Extension]
}
mergeLibraries :: [Library] -> Library
libraryToGhciArgs :: Library -> ([String], [String], [String])
dropEnd :: Int -> [a] -> [a]
findCabalPackage :: HasCallStack => String -> IO FilePath
compatPrettyShow :: FilePath -> FilePath
solveCondTree :: CondTree ConfVar c a -> [(c, a)]
buildGhc :: Version
extractSpecificCabalLibrary :: Maybe String -> FilePath -> IO Library
extractCabalLibrary :: FilePath -> IO Library

Documentation

rmList :: Ord a => [a] -> [a] -> [a] Source #

Efficient implementation of set like deletion on lists

>>> "abcd" `rmList` "ad"
"bc"
>>> "aaabcccd" `rmList` "ad"
"bccc"

data Library Source #

Constructors

Library
Fields libSourceDirectories :: [FilePath] Haskell source directories libCSourceDirectories :: [FilePath] C source directories libModules :: [ModuleName] Exposed modules libDefaultExtensions :: [Extension] Extensions enabled by default

Instances

Instances details

Show Library Source #
Instance details Defined in Test.DocTest.Helpers Methods showsPrec :: Int -> Library -> ShowS # show :: Library -> String # showList :: [Library] -> ShowS #

mergeLibraries :: [Library] -> Library Source #

Merge multiple libraries into one, by concatenating all their fields.

libraryToGhciArgs :: Library -> ([String], [String], [String]) Source #

Convert a Library to arguments suitable to be passed to GHCi.

dropEnd :: Int -> [a] -> [a] Source #

Drop a number of elements from the end of the list.

dropEnd 3 "hello"  == "he"
dropEnd 5 "bye"    == ""
dropEnd (-1) "bye" == "bye"
\i xs -> dropEnd i xs `isPrefixOf` xs
\i xs -> length (dropEnd i xs) == max 0 (length xs - max 0 i)
\i -> take 3 (dropEnd 5 [i..]) == take 3 [i..]

findCabalPackage :: HasCallStack => String -> IO FilePath Source #

Searches for a file called package.cabal, where package is given as an argument. It will look for it in the current directory. If it can't find it there, it will traverse up until it finds the file or a file called cabal.project. In case of the latter, it will traverse down recursively until it encounters a package.cabal.

The returned path points to the package.cabal. Errors if it could not find package.cabal anywhere, or when it found multiple.

compatPrettyShow :: FilePath -> FilePath Source #

solveCondTree :: CondTree ConfVar c a -> [(c, a)] Source #

Traverse the given tree, solve predicates in branches, and return its contents.

XXX: Branches guarded by Cabal flags are ignored. I'm not sure where we should get this info from.

buildGhc :: Version Source #

GHC version as Cabal's Version data structure

extractSpecificCabalLibrary :: Maybe String -> FilePath -> IO Library Source #

Given a filepath to a package.cabal, parse it, and yield a Library. Yields the default Library if first argument is Nothing, otherwise it will look for a specific sublibrary.

extractCabalLibrary :: FilePath -> IO Library Source #

Given a filepath to a package.cabal, parse it, and yield a Library. Returns and error if no library was specified in the cabal package file.