{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric #-}

module Distribution.Types.ComponentName (
  ComponentName(..),
  showComponentName,
  componentNameStanza,
  componentNameString,
  ) where

import Prelude ()
import Distribution.Compat.Prelude

import Distribution.Types.UnqualComponentName
import Distribution.Types.LibraryName
import Distribution.Pretty
import Distribution.Parsec

import qualified Text.PrettyPrint as Disp
import qualified Distribution.Compat.CharParsing as P

-- Libraries live in a separate namespace, so must distinguish
data ComponentName = CLibName   LibraryName
                   | CFLibName  UnqualComponentName
                   | CExeName   UnqualComponentName
                   | CTestName  UnqualComponentName
                   | CBenchName UnqualComponentName
                   deriving (ComponentName -> ComponentName -> Bool
(ComponentName -> ComponentName -> Bool)
-> (ComponentName -> ComponentName -> Bool) -> Eq ComponentName
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: ComponentName -> ComponentName -> Bool
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instance Binary ComponentName

-- Build-target-ish syntax
instance Pretty ComponentName where
    pretty :: ComponentName -> Doc
pretty (CLibName LibraryName
lib)    = LibraryName -> Doc
prettyLibraryNameComponent LibraryName
lib
    pretty (CFLibName UnqualComponentName
str)   = String -> Doc
Disp.text String
"flib:" Doc -> Doc -> Doc
<<>> UnqualComponentName -> Doc
forall a. Pretty a => a -> Doc
pretty UnqualComponentName
str
    pretty (CExeName UnqualComponentName
str)    = String -> Doc
Disp.text String
"exe:" Doc -> Doc -> Doc
<<>> UnqualComponentName -> Doc
forall a. Pretty a => a -> Doc
pretty UnqualComponentName
str
    pretty (CTestName UnqualComponentName
str)   = String -> Doc
Disp.text String
"test:" Doc -> Doc -> Doc
<<>> UnqualComponentName -> Doc
forall a. Pretty a => a -> Doc
pretty UnqualComponentName
str
    pretty (CBenchName UnqualComponentName
str)  = String -> Doc
Disp.text String
"bench:" Doc -> Doc -> Doc
<<>> UnqualComponentName -> Doc
forall a. Pretty a => a -> Doc
pretty UnqualComponentName
str

instance Parsec ComponentName where
    -- note: this works as lib/flib/... all start with different character!
    parsec :: m ComponentName
parsec = m ComponentName
parseComposite m ComponentName -> m ComponentName -> m ComponentName
forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> m ComponentName
parseLib
      where
        parseLib :: m ComponentName
parseLib = LibraryName -> ComponentName
CLibName (LibraryName -> ComponentName) -> m LibraryName -> m ComponentName
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> m LibraryName
forall (m :: * -> *). CabalParsing m => m LibraryName
parsecLibraryNameComponent
        parseComposite :: m ComponentName
parseComposite = do
            UnqualComponentName -> ComponentName
ctor <- [m (UnqualComponentName -> ComponentName)]
-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a. Alternative m => [m a] -> m a
P.choice
                [ String -> m String
forall (m :: * -> *). CharParsing m => String -> m String
P.string String
"flib:" m String
-> m (UnqualComponentName -> ComponentName)
-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
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-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a. Monad m => a -> m a
return UnqualComponentName -> ComponentName
CFLibName
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forall (m :: * -> *). CharParsing m => String -> m String
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-> m (UnqualComponentName -> ComponentName)
-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (UnqualComponentName -> ComponentName)
-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a. Monad m => a -> m a
return UnqualComponentName -> ComponentName
CExeName
                , String -> m String
forall (m :: * -> *). CharParsing m => String -> m String
P.string String
"bench:" m String
-> m (UnqualComponentName -> ComponentName)
-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (UnqualComponentName -> ComponentName)
-> m (UnqualComponentName -> ComponentName)
forall (m :: * -> *) a. Monad m => a -> m a
return UnqualComponentName -> ComponentName
CBenchName
                , String -> m String
forall (m :: * -> *). CharParsing m => String -> m String
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-> m (UnqualComponentName -> ComponentName)
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-> m (UnqualComponentName -> ComponentName)
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return UnqualComponentName -> ComponentName
CTestName
                ]
            UnqualComponentName -> ComponentName
ctor (UnqualComponentName -> ComponentName)
-> m UnqualComponentName -> m ComponentName
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> m UnqualComponentName
forall a (m :: * -> *). (Parsec a, CabalParsing m) => m a
parsec

showComponentName :: ComponentName -> String
showComponentName :: ComponentName -> String
showComponentName (CLibName LibraryName
lib)    = LibraryName -> String
showLibraryName LibraryName
lib
showComponentName (CFLibName  UnqualComponentName
name) = String
"foreign library '" String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
"'"
showComponentName (CExeName   UnqualComponentName
name) = String
"executable '" String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
"'"
showComponentName (CTestName  UnqualComponentName
name) = String
"test suite '" String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
"'"
showComponentName (CBenchName UnqualComponentName
name) = String
"benchmark '" String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
"'"

componentNameStanza :: ComponentName -> String
componentNameStanza :: ComponentName -> String
componentNameStanza (CLibName LibraryName
lib)    = LibraryName -> String
libraryNameStanza LibraryName
lib
componentNameStanza (CFLibName  UnqualComponentName
name) = String
"foreign-library " String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name
componentNameStanza (CExeName   UnqualComponentName
name) = String
"executable " String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name
componentNameStanza (CTestName  UnqualComponentName
name) = String
"test-suite " String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name
componentNameStanza (CBenchName UnqualComponentName
name) = String
"benchmark " String -> ShowS
forall a. [a] -> [a] -> [a]
++ UnqualComponentName -> String
forall a. Pretty a => a -> String
prettyShow UnqualComponentName
name

-- | This gets the underlying unqualified component name. In fact, it is
-- guaranteed to uniquely identify a component, returning
-- @Nothing@ if the 'ComponentName' was for the public
-- library.
componentNameString :: ComponentName -> Maybe UnqualComponentName
componentNameString :: ComponentName -> Maybe UnqualComponentName
componentNameString (CLibName LibraryName
lib) = LibraryName -> Maybe UnqualComponentName
libraryNameString LibraryName
lib
componentNameString (CFLibName  UnqualComponentName
n) = UnqualComponentName -> Maybe UnqualComponentName
forall a. a -> Maybe a
Just UnqualComponentName
n
componentNameString (CExeName   UnqualComponentName
n) = UnqualComponentName -> Maybe UnqualComponentName
forall a. a -> Maybe a
Just UnqualComponentName
n
componentNameString (CTestName  UnqualComponentName
n) = UnqualComponentName -> Maybe UnqualComponentName
forall a. a -> Maybe a
Just UnqualComponentName
n
componentNameString (CBenchName UnqualComponentName
n) = UnqualComponentName -> Maybe UnqualComponentName
forall a. a -> Maybe a
Just UnqualComponentName
n