{-| Agda main module.
-}
module Agda.Main where

import Prelude hiding (null)

import Control.Monad          ( void )
import Control.Monad.Except   ( MonadError(..), ExceptT(..), runExceptT )
import Control.Monad.IO.Class ( MonadIO(..) )

import qualified Data.List as List
import Data.Maybe

import System.Environment
import System.Console.GetOpt

import Paths_Agda            ( getDataDir )

import Agda.Interaction.CommandLine
import Agda.Interaction.ExitCode (AgdaError(..), exitSuccess, exitAgdaWith)
import Agda.Interaction.Options
import Agda.Interaction.Options.Help (Help (..))
import Agda.Interaction.EmacsTop (mimicGHCi)
import Agda.Interaction.JSONTop (jsonREPL)
import Agda.Interaction.FindFile ( SourceFile(SourceFile) )
import qualified Agda.Interaction.Imports as Imp

import Agda.TypeChecking.Monad
import qualified Agda.TypeChecking.Monad.Benchmark as Bench
import Agda.TypeChecking.Errors
import Agda.TypeChecking.Warnings
import Agda.TypeChecking.Pretty

import Agda.Compiler.Backend
import Agda.Compiler.Builtin

import Agda.VersionCommit

import Agda.Utils.FileName (absolute, filePath, AbsolutePath)
import Agda.Utils.Monad
import Agda.Utils.Null
import Agda.Utils.String
import qualified Agda.Utils.Benchmark as UtilsBench

import Agda.Utils.Impossible

-- | The main function
runAgda :: [Backend] -> IO ()
runAgda :: [Backend] -> IO ()
runAgda [Backend]
backends = [Backend] -> IO ()
runAgda' forall a b. (a -> b) -> a -> b
$ [Backend]
builtinBackends forall a. [a] -> [a] -> [a]
++ [Backend]
backends

-- | The main function without importing built-in backends
runAgda' :: [Backend] -> IO ()
runAgda' :: [Backend] -> IO ()
runAgda' [Backend]
backends = do
  String
progName <- IO String
getProgName
  [String]
argv     <- IO [String]
getArgs
  Either String ([Backend], CommandLineOptions, MainMode)
conf     <- forall e (m :: * -> *) a. ExceptT e m a -> m (Either e a)
runExceptT forall a b. (a -> b) -> a -> b
$ do
    ([Backend]
bs, CommandLineOptions
opts) <- forall e (m :: * -> *) a. m (Either e a) -> ExceptT e m a
ExceptT forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *) opts.
Monad m =>
OptM opts -> m (Either String opts)
runOptM forall a b. (a -> b) -> a -> b
$ [Backend]
-> [String]
-> CommandLineOptions
-> OptM ([Backend], CommandLineOptions)
parseBackendOptions [Backend]
backends [String]
argv CommandLineOptions
defaultOptions
    -- The absolute path of the input file, if provided
    Maybe AbsolutePath
inputFile <- forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM String -> IO AbsolutePath
absolute forall a b. (a -> b) -> a -> b
$ CommandLineOptions -> Maybe String
optInputFile CommandLineOptions
opts
    MainMode
mode      <- forall (m :: * -> *).
MonadError String m =>
[Backend] -> Maybe AbsolutePath -> CommandLineOptions -> m MainMode
getMainMode [Backend]
bs Maybe AbsolutePath
inputFile CommandLineOptions
opts
    forall (m :: * -> *) a. Monad m => a -> m a
return ([Backend]
bs, CommandLineOptions
opts, MainMode
mode)

  case Either String ([Backend], CommandLineOptions, MainMode)
conf of
    Left String
err -> String -> IO ()
optionError String
err
    Right ([Backend]
bs, CommandLineOptions
opts, MainMode
mode) -> case MainMode
mode of
      MainModePrintHelp Help
hp   -> [Backend] -> Help -> IO ()
printUsage [Backend]
bs Help
hp
      MainMode
MainModePrintVersion   -> [Backend] -> IO ()
printVersion [Backend]
bs
      MainMode
MainModePrintAgdaDir   -> IO ()
printAgdaDir
      MainModeRun Interactor ()
interactor -> TCM () -> IO ()
runTCMPrettyErrors forall a b. (a -> b) -> a -> b
$ do
        forall (m :: * -> *) a.
MonadTCState m =>
Lens' a TCState -> a -> m ()
setTCLens Lens' [Backend] TCState
stBackends [Backend]
bs
        forall a. Interactor a -> String -> CommandLineOptions -> TCM a
runAgdaWithOptions Interactor ()
interactor String
progName CommandLineOptions
opts

-- | Main execution mode
data MainMode
  = MainModeRun (Interactor ())
  | MainModePrintHelp Help
  | MainModePrintVersion
  | MainModePrintAgdaDir

-- | Determine the main execution mode to run, based on the configured backends and command line options.
-- | This is pure.
getMainMode :: MonadError String m => [Backend] -> Maybe AbsolutePath -> CommandLineOptions -> m MainMode
getMainMode :: forall (m :: * -> *).
MonadError String m =>
[Backend] -> Maybe AbsolutePath -> CommandLineOptions -> m MainMode
getMainMode [Backend]
configuredBackends Maybe AbsolutePath
maybeInputFile CommandLineOptions
opts
  | Just Help
hp <- CommandLineOptions -> Maybe Help
optPrintHelp CommandLineOptions
opts = forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ Help -> MainMode
MainModePrintHelp Help
hp
  | CommandLineOptions -> Bool
optPrintVersion CommandLineOptions
opts         = forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ MainMode
MainModePrintVersion
  | CommandLineOptions -> Bool
optPrintAgdaDir CommandLineOptions
opts         = forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ MainMode
MainModePrintAgdaDir
  | Bool
otherwise                    = do
      Maybe (Interactor ())
mi <- forall (m :: * -> *).
MonadError String m =>
[Backend]
-> Maybe AbsolutePath
-> CommandLineOptions
-> m (Maybe (Interactor ()))
getInteractor [Backend]
configuredBackends Maybe AbsolutePath
maybeInputFile CommandLineOptions
opts
      -- If there was no selection whatsoever (e.g. just invoked "agda"), we just show help and exit.
      forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall b a. b -> (a -> b) -> Maybe a -> b
maybe (Help -> MainMode
MainModePrintHelp Help
GeneralHelp) Interactor () -> MainMode
MainModeRun Maybe (Interactor ())
mi

type Interactor a
    -- Setup/initialization action.
    -- This is separated so that errors can be reported in the appropriate format.
    = TCM ()
    -- Type-checking action
    -> (AbsolutePath -> TCM CheckResult)
    -- Main transformed action.
    -> TCM a

data FrontendType
  = FrontEndEmacs
  | FrontEndJson
  | FrontEndRepl

-- Emacs mode. Note that it ignores the "check" action because it calls typeCheck directly.
emacsModeInteractor :: Interactor ()
emacsModeInteractor :: Interactor ()
emacsModeInteractor TCM ()
setup AbsolutePath -> TCM CheckResult
_check = TCM () -> TCM ()
mimicGHCi TCM ()
setup

-- JSON mode. Note that it ignores the "check" action because it calls typeCheck directly.
jsonModeInteractor :: Interactor ()
jsonModeInteractor :: Interactor ()
jsonModeInteractor TCM ()
setup AbsolutePath -> TCM CheckResult
_check = TCM () -> TCM ()
jsonREPL TCM ()
setup

-- The deprecated repl mode.
replInteractor :: Maybe AbsolutePath -> Interactor ()
replInteractor :: Maybe AbsolutePath -> Interactor ()
replInteractor = Maybe AbsolutePath -> Interactor ()
runInteractionLoop

-- The interactor to use when there are no frontends or backends specified.
defaultInteractor :: AbsolutePath -> Interactor ()
defaultInteractor :: AbsolutePath -> Interactor ()
defaultInteractor AbsolutePath
file TCM ()
setup AbsolutePath -> TCM CheckResult
check = do TCM ()
setup; forall (f :: * -> *) a. Functor f => f a -> f ()
void forall a b. (a -> b) -> a -> b
$ AbsolutePath -> TCM CheckResult
check AbsolutePath
file

getInteractor :: MonadError String m => [Backend] -> Maybe AbsolutePath -> CommandLineOptions -> m (Maybe (Interactor ()))
getInteractor :: forall (m :: * -> *).
MonadError String m =>
[Backend]
-> Maybe AbsolutePath
-> CommandLineOptions
-> m (Maybe (Interactor ()))
getInteractor [Backend]
configuredBackends Maybe AbsolutePath
maybeInputFile CommandLineOptions
opts =
  case (Maybe AbsolutePath
maybeInputFile, [FrontendType]
enabledFrontends, [Backend]
enabledBackends) of
    (Just AbsolutePath
inputFile, [],             Backend
_:[Backend]
_) -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ AbsolutePath -> [Backend] -> Interactor ()
backendInteraction AbsolutePath
inputFile [Backend]
enabledBackends
    (Just AbsolutePath
inputFile, [],              []) -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ AbsolutePath -> Interactor ()
defaultInteractor AbsolutePath
inputFile
    (Maybe AbsolutePath
Nothing,        [],              []) -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a. Maybe a
Nothing -- No backends, frontends, or input files specified.
    (Maybe AbsolutePath
Nothing,        [],             Backend
_:[Backend]
_) -> forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
"No input file specified for ", String
enabledBackendNames]
    (Maybe AbsolutePath
_,              FrontendType
_:[FrontendType]
_,            Backend
_:[Backend]
_) -> forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
"Cannot mix ", String
enabledFrontendNames, String
" with ", String
enabledBackendNames]
    (Maybe AbsolutePath
_,              FrontendType
_:FrontendType
_:[FrontendType]
_,           []) -> forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
"Must not specify multiple ", String
enabledFrontendNames]
    (Maybe AbsolutePath
_,              [FrontendType
fe],            []) | CommandLineOptions -> Bool
optOnlyScopeChecking CommandLineOptions
opts -> forall {m :: * -> *} {a}.
MonadError String m =>
FrontendType -> m a
errorFrontendScopeChecking FrontendType
fe
    (Maybe AbsolutePath
_,              [FrontendType
FrontEndRepl],  []) -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ Maybe AbsolutePath -> Interactor ()
replInteractor Maybe AbsolutePath
maybeInputFile
    (Maybe AbsolutePath
Nothing,        [FrontendType
FrontEndEmacs], []) -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ Interactor ()
emacsModeInteractor
    (Maybe AbsolutePath
Nothing,        [FrontendType
FrontEndJson],  []) -> forall (m :: * -> *) a. Monad m => a -> m a
return forall a b. (a -> b) -> a -> b
$ forall a. a -> Maybe a
Just forall a b. (a -> b) -> a -> b
$ Interactor ()
jsonModeInteractor
    (Just AbsolutePath
inputFile, [FrontendType
FrontEndEmacs], []) -> forall {m :: * -> *} {a}.
MonadError String m =>
AbsolutePath -> FrontendType -> m a
errorFrontendFileDisallowed AbsolutePath
inputFile FrontendType
FrontEndEmacs
    (Just AbsolutePath
inputFile, [FrontendType
FrontEndJson],  []) -> forall {m :: * -> *} {a}.
MonadError String m =>
AbsolutePath -> FrontendType -> m a
errorFrontendFileDisallowed AbsolutePath
inputFile FrontendType
FrontEndJson
  where
    -- NOTE: The notion of a backend being "enabled" *just* refers to this top-level interaction mode selection. The
    -- interaction/interactive front-ends may still invoke available backends even if they are not "enabled".
    isBackendEnabled :: Backend -> Bool
isBackendEnabled (Backend Backend' opts env menv mod def
b) = forall opts env menv mod def.
Backend' opts env menv mod def -> opts -> Bool
isEnabled Backend' opts env menv mod def
b (forall opts env menv mod def.
Backend' opts env menv mod def -> opts
options Backend' opts env menv mod def
b)
    enabledBackends :: [Backend]
enabledBackends = forall a. (a -> Bool) -> [a] -> [a]
filter Backend -> Bool
isBackendEnabled [Backend]
configuredBackends
    enabledFrontends :: [FrontendType]
enabledFrontends = forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat
      [ [ FrontendType
FrontEndRepl  | CommandLineOptions -> Bool
optInteractive     CommandLineOptions
opts ]
      , [ FrontendType
FrontEndEmacs | CommandLineOptions -> Bool
optGHCiInteraction CommandLineOptions
opts ]
      , [ FrontendType
FrontEndJson  | CommandLineOptions -> Bool
optJSONInteraction CommandLineOptions
opts ]
      ]
    -- Constructs messages like "(no backend)", "backend ghc", "backends (ghc, ocaml)"
    pluralize :: String -> [String] -> String
pluralize String
w []  = forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
"(no ", String
w, String
")"]
    pluralize String
w [String
x] = forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
w, String
" ", String
x]
    pluralize String
w [String]
xs  = forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
w, String
"s (", forall a. [a] -> [[a]] -> [a]
List.intercalate String
", " [String]
xs, String
")"]
    enabledBackendNames :: String
enabledBackendNames  = String -> [String] -> String
pluralize String
"backend" [ forall opts env menv mod def.
Backend' opts env menv mod def -> String
backendName Backend' opts env menv mod def
b | Backend Backend' opts env menv mod def
b <- [Backend]
enabledBackends ]
    enabledFrontendNames :: String
enabledFrontendNames = String -> [String] -> String
pluralize String
"frontend" (FrontendType -> String
frontendFlagName forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> [FrontendType]
enabledFrontends)
    frontendFlagName :: FrontendType -> String
frontendFlagName = (String
"--" forall a. [a] -> [a] -> [a]
++) forall b c a. (b -> c) -> (a -> b) -> a -> c
. \case
      FrontendType
FrontEndEmacs -> String
"interaction"
      FrontendType
FrontEndJson -> String
"interaction-json"
      FrontendType
FrontEndRepl -> String
"interactive"
    errorFrontendScopeChecking :: FrontendType -> m a
errorFrontendScopeChecking FrontendType
fe = forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError forall a b. (a -> b) -> a -> b
$
      forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
"The --only-scope-checking flag cannot be combined with ", FrontendType -> String
frontendFlagName FrontendType
fe]
    errorFrontendFileDisallowed :: AbsolutePath -> FrontendType -> m a
errorFrontendFileDisallowed AbsolutePath
inputFile FrontendType
fe = forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError forall a b. (a -> b) -> a -> b
$
      forall (t :: * -> *) a. Foldable t => t [a] -> [a]
concat [String
"Must not specify an input file (", AbsolutePath -> String
filePath AbsolutePath
inputFile, String
") with ", FrontendType -> String
frontendFlagName FrontendType
fe]

-- | Run Agda with parsed command line options
runAgdaWithOptions
  :: Interactor a       -- ^ Backend interaction
  -> String             -- ^ program name
  -> CommandLineOptions -- ^ parsed command line options
  -> TCM a
runAgdaWithOptions :: forall a. Interactor a -> String -> CommandLineOptions -> TCM a
runAgdaWithOptions Interactor a
interactor String
progName CommandLineOptions
opts = do
          -- Main function.
          -- Bill everything to root of Benchmark trie.
          forall (m :: * -> *).
MonadBench m =>
BenchmarkOn (BenchPhase m) -> m ()
UtilsBench.setBenchmarking forall a. BenchmarkOn a
UtilsBench.BenchmarkOn
            -- Andreas, Nisse, 2016-10-11 AIM XXIV
            -- Turn benchmarking on provisionally, otherwise we lose track of time spent
            -- on e.g. LaTeX-code generation.
            -- Benchmarking might be turned off later by setCommandlineOptions

          forall (m :: * -> *) c.
MonadBench m =>
Account (BenchPhase m) -> m c -> m c
Bench.billTo [] forall a b. (a -> b) -> a -> b
$
            Interactor a
interactor TCM ()
initialSetup AbsolutePath -> TCM CheckResult
checkFile
          forall a b. TCM a -> TCM b -> TCM a
`finally_` do
            -- Print benchmarks.
            forall (tcm :: * -> *). MonadTCM tcm => tcm ()
Bench.print

            -- Print accumulated statistics.
            forall (m :: * -> *).
(MonadDebug m, MonadTCEnv m, HasOptions m) =>
Int -> Maybe TopLevelModuleName -> Statistics -> m ()
printStatistics Int
1 forall a. Maybe a
Nothing forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< forall (m :: * -> *) a. ReadTCState m => Lens' a TCState -> m a
useTC Lens' Statistics TCState
lensAccumStatistics
  where
    -- Options are fleshed out here so that (most) errors like
    -- "bad library path" are validated within the interactor,
    -- so that they are reported with the appropriate protocol/formatting.
    initialSetup :: TCM ()
    initialSetup :: TCM ()
initialSetup = do
      CommandLineOptions
opts <- CommandLineOptions -> TCM CommandLineOptions
addTrustedExecutables CommandLineOptions
opts
      CommandLineOptions -> TCM ()
setCommandLineOptions CommandLineOptions
opts

    checkFile :: AbsolutePath -> TCM CheckResult
    checkFile :: AbsolutePath -> TCM CheckResult
checkFile AbsolutePath
inputFile = do
        -- Andreas, 2013-10-30 The following 'resetState' kills the
        -- verbosity options.  That does not make sense (see fail/Issue641).
        -- 'resetState' here does not seem to serve any purpose,
        -- thus, I am removing it.
        -- resetState
          let mode :: Mode
mode = if CommandLineOptions -> Bool
optOnlyScopeChecking CommandLineOptions
opts
                     then Mode
Imp.ScopeCheck
                     else Mode
Imp.TypeCheck

          CheckResult
result <- Mode -> Source -> TCM CheckResult
Imp.typeCheckMain Mode
mode forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< SourceFile -> TCM Source
Imp.parseSource (AbsolutePath -> SourceFile
SourceFile AbsolutePath
inputFile)

          forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (CheckResult -> ModuleCheckMode
crMode CheckResult
result forall a. Eq a => a -> a -> Bool
== ModuleCheckMode
ModuleScopeChecked) forall a b. (a -> b) -> a -> b
$
            forall (m :: * -> *) a.
(Monad m, Null a) =>
m a -> (a -> m ()) -> m ()
unlessNullM (forall (m :: * -> *). HasOptions m => [TCWarning] -> m [TCWarning]
applyFlagsToTCWarnings (CheckResult -> [TCWarning]
crWarnings CheckResult
result)) forall a b. (a -> b) -> a -> b
$ \ [TCWarning]
ws ->
              forall (m :: * -> *) a.
(HasCallStack, MonadTCError m) =>
TypeError -> m a
typeError forall a b. (a -> b) -> a -> b
$ [TCWarning] -> TypeError
NonFatalErrors [TCWarning]
ws

          let i :: Interface
i = CheckResult -> Interface
crInterface CheckResult
result
          forall (m :: * -> *).
MonadDebug m =>
String -> Int -> TCMT IO Doc -> m ()
reportSDoc String
"main" Int
50 forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *) a. (Applicative m, Pretty a) => a -> m Doc
pretty Interface
i

          -- Print accumulated warnings
          forall (m :: * -> *) a.
(Monad m, Null a) =>
m a -> (a -> m ()) -> m ()
unlessNullM (WarningsAndNonFatalErrors -> [TCWarning]
tcWarnings forall b c a. (b -> c) -> (a -> b) -> a -> c
. [TCWarning] -> WarningsAndNonFatalErrors
classifyWarnings forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> forall (m :: * -> *).
(MonadFail m, ReadTCState m, MonadWarning m) =>
WhichWarnings -> m [TCWarning]
getAllWarnings WhichWarnings
AllWarnings) forall a b. (a -> b) -> a -> b
$ \ [TCWarning]
ws -> do
            let banner :: TCMT IO Doc
banner = forall (m :: * -> *). Applicative m => String -> m Doc
text forall a b. (a -> b) -> a -> b
$ String
"\n" forall a. [a] -> [a] -> [a]
++ String -> String
delimiter String
"All done; warnings encountered"
            forall (m :: * -> *).
MonadDebug m =>
String -> Int -> TCMT IO Doc -> m ()
reportSDoc String
"warning" Int
1 forall a b. (a -> b) -> a -> b
$
              forall (m :: * -> *) (t :: * -> *).
(Applicative m, Foldable t) =>
t (m Doc) -> m Doc
vcat forall a b. (a -> b) -> a -> b
$ forall (m :: * -> *) (t :: * -> *).
(Applicative m, Semigroup (m Doc), Foldable t) =>
m Doc -> t (m Doc) -> [m Doc]
punctuate TCMT IO Doc
"\n" forall a b. (a -> b) -> a -> b
$ TCMT IO Doc
banner forall a. a -> [a] -> [a]
: (forall a (m :: * -> *). (PrettyTCM a, MonadPretty m) => a -> m Doc
prettyTCM forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> [TCWarning]
ws)

          forall (m :: * -> *) a. Monad m => a -> m a
return CheckResult
result



-- | Print usage information.
printUsage :: [Backend] -> Help -> IO ()
printUsage :: [Backend] -> Help -> IO ()
printUsage [Backend]
backends Help
hp = do
  String
progName <- IO String
getProgName
  String -> IO ()
putStr forall a b. (a -> b) -> a -> b
$ [OptDescr ()] -> String -> Help -> String
usage [OptDescr ()]
standardOptions_ String
progName Help
hp
  forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Help
hp forall a. Eq a => a -> a -> Bool
== Help
GeneralHelp) forall a b. (a -> b) -> a -> b
$ forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (String -> IO ()
putStr forall b c a. (b -> c) -> (a -> b) -> a -> c
. Backend -> String
backendUsage) [Backend]
backends

backendUsage :: Backend -> String
backendUsage :: Backend -> String
backendUsage (Backend Backend' opts env menv mod def
b) =
  forall a. String -> [OptDescr a] -> String
usageInfo (String
"\n" forall a. [a] -> [a] -> [a]
++ forall opts env menv mod def.
Backend' opts env menv mod def -> String
backendName Backend' opts env menv mod def
b forall a. [a] -> [a] -> [a]
++ String
" backend options") forall a b. (a -> b) -> a -> b
$
    forall a b. (a -> b) -> [a] -> [b]
map forall (f :: * -> *) a. Functor f => f a -> f ()
void (forall opts env menv mod def.
Backend' opts env menv mod def -> [OptDescr (Flag opts)]
commandLineFlags Backend' opts env menv mod def
b)

-- | Print version information.
printVersion :: [Backend] -> IO ()
printVersion :: [Backend] -> IO ()
printVersion [Backend]
backends = do
  String -> IO ()
putStrLn forall a b. (a -> b) -> a -> b
$ String
"Agda version " forall a. [a] -> [a] -> [a]
++ String
versionWithCommitInfo
  forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ String -> IO ()
putStrLn
    [ String
"  - " forall a. [a] -> [a] -> [a]
++ String
name forall a. [a] -> [a] -> [a]
++ String
" backend version " forall a. [a] -> [a] -> [a]
++ String
ver
    | Backend Backend'{ backendName :: forall opts env menv mod def.
Backend' opts env menv mod def -> String
backendName = String
name, backendVersion :: forall opts env menv mod def.
Backend' opts env menv mod def -> Maybe String
backendVersion = Just String
ver } <- [Backend]
backends ]

printAgdaDir :: IO ()
printAgdaDir :: IO ()
printAgdaDir = String -> IO ()
putStrLn forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< IO String
getDataDir

-- | What to do for bad options.
optionError :: String -> IO ()
optionError :: String -> IO ()
optionError String
err = do
  String
prog <- IO String
getProgName
  String -> IO ()
putStrLn forall a b. (a -> b) -> a -> b
$ String
"Error: " forall a. [a] -> [a] -> [a]
++ String
err forall a. [a] -> [a] -> [a]
++ String
"\nRun '" forall a. [a] -> [a] -> [a]
++ String
prog forall a. [a] -> [a] -> [a]
++ String
" --help' for help on command line options."
  AgdaError -> IO ()
exitAgdaWith AgdaError
OptionError

-- | Run a TCM action in IO; catch and pretty print errors.
runTCMPrettyErrors :: TCM () -> IO ()
runTCMPrettyErrors :: TCM () -> IO ()
runTCMPrettyErrors TCM ()
tcm = do
    Either TCErr ()
r <- forall a. TCM a -> IO (Either TCErr a)
runTCMTop forall a b. (a -> b) -> a -> b
$ TCM ()
tcm forall e (m :: * -> *) a.
MonadError e m =>
m a -> (e -> m a) -> m a
`catchError` \TCErr
err -> do
      [String]
s2s <- [TCWarning] -> TCMT IO [String]
prettyTCWarnings' forall (m :: * -> *) a b. Monad m => (a -> m b) -> m a -> m b
=<< TCErr -> TCMT IO [TCWarning]
getAllWarningsOfTCErr TCErr
err
      String
s1  <- forall (tcm :: * -> *). MonadTCM tcm => TCErr -> tcm String
prettyError TCErr
err
      let ss :: [String]
ss = forall a. (a -> Bool) -> [a] -> [a]
filter (Bool -> Bool
not forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall a. Null a => a -> Bool
null) forall a b. (a -> b) -> a -> b
$ [String]
s2s forall a. [a] -> [a] -> [a]
++ [String
s1]
      forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (forall a. Null a => a -> Bool
null String
s1) (forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO forall a b. (a -> b) -> a -> b
$ String -> IO ()
putStr forall a b. (a -> b) -> a -> b
$ [String] -> String
unlines [String]
ss)
      forall e (m :: * -> *) a. MonadError e m => e -> m a
throwError TCErr
err
    case Either TCErr ()
r of
      Right ()
_ -> forall a. IO a
exitSuccess
      Left TCErr
_  -> AgdaError -> IO ()
exitAgdaWith AgdaError
TCMError
  forall (m :: * -> *) a.
CatchImpossible m =>
m a -> (Impossible -> m a) -> m a
`catchImpossible` \Impossible
e -> do
    String -> IO ()
putStr forall a b. (a -> b) -> a -> b
$ forall a. Show a => a -> String
show Impossible
e
    AgdaError -> IO ()
exitAgdaWith AgdaError
ImpossibleError