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|
{-# LANGUAGE NoImplicitPrelude #-}
-- | Stable source-mount policy and authority-free workspace preparation.
module Felix.Workspace
( WorkspaceEnvironment
, prepareDefaultWorkspaceEnvironment
, workspaceSourceMounts
, workspaceHtmlMountPrefixes
, workspaceRendererSearchRoots
, prepareWorkspaceRoot
, prepareSourceGraph
, prepareDefaultSourceGraph
, AuthorityFreeParseError(..)
, renderAuthorityFreeParseError
, parseWorkspace
, parse
, tokenize
, scan
, simpleStream
, TokStream
, ParseException(..)
, builtins
) where
import Base
import Felix.Parse (ParseException(..), ParseWorkspaceError(..))
import Felix.Parse qualified as Parse
import Felix.Prelude qualified as Prelude
import Felix.Source
import Felix.Source.Graph (ResolvedSourceGraph)
import Felix.Source.Graph qualified as SourceGraph
import Felix.Report.Location
import Felix.Syntax.Abstract qualified as Raw
import Felix.Syntax.Adapt (ScannedLexicalItem, scanChunk)
import Felix.Syntax.Lexicon (builtins)
import Felix.Syntax.Token
import Control.Exception qualified as Exception
import Data.Bifunctor (first)
import System.Directory (getCurrentDirectory)
import System.Environment (lookupEnv)
import System.FilePath.Posix ((</>), isAbsolute)
import Text.Megaparsec (errorBundlePretty)
data WorkspaceEnvironment = WorkspaceEnvironment
!SourceMounts
![(SourceMountId, [Text])]
![FilePath]
workspaceSourceMounts :: WorkspaceEnvironment -> SourceMounts
workspaceSourceMounts (WorkspaceEnvironment mounts _prefixes _rendererRoots) =
mounts
workspaceHtmlMountPrefixes
:: WorkspaceEnvironment
-> [(SourceMountId, [Text])]
workspaceHtmlMountPrefixes
(WorkspaceEnvironment _mounts prefixes _rendererRoots) =
prefixes
workspaceRendererSearchRoots :: WorkspaceEnvironment -> [FilePath]
workspaceRendererSearchRoots
(WorkspaceEnvironment _mounts _prefixes rendererRoots) =
rendererRoots
prepareDefaultWorkspaceEnvironment
:: IO (Either ParseWorkspaceError WorkspaceEnvironment)
prepareDefaultWorkspaceEnvironment = do
currentDir <- getCurrentDirectory
configuredLibrary <- lookupEnv "NAPROCHE_LIB"
let libraryDir = fromMaybe (currentDir </> "library") configuredLibrary
debugDir = currentDir </> "debug"
rendererRoots = [currentDir, libraryDir, debugDir]
prefixes =
[ (sourceMountId "project", [])
, (sourceMountId "library", ["library"])
, (sourceMountId "debug", ["debug"])
]
fmap (first SourceWorkspaceError)
(fmap
(\mounts ->
WorkspaceEnvironment mounts prefixes rendererRoots)
<$> prepareSourceMounts
[ (sourceMountId "project", currentDir)
, (sourceMountId "library", libraryDir)
, (sourceMountId "debug", debugDir)
])
prepareWorkspaceRoot
:: WorkspaceEnvironment
-> FilePath
-> IO (Either ParseWorkspaceError RootRequest)
prepareWorkspaceRoot _environment file =
first SourceWorkspaceError <$> classifyRootRequest file
prepareSourceGraph
:: WorkspaceEnvironment
-> RootRequest
-> IO (Either ParseWorkspaceError ResolvedSourceGraph)
prepareSourceGraph environment request =
first SourceWorkspaceError
<$> SourceGraph.buildResolvedSourceGraph
(workspaceSourceMounts environment)
request
prepareDefaultSourceGraph
:: FilePath
-> IO (Either ParseWorkspaceError ResolvedSourceGraph)
prepareDefaultSourceGraph file = do
preparedEnvironment <- prepareDefaultWorkspaceEnvironment
case preparedEnvironment of
Left failure -> pure (Left failure)
Right environment -> do
preparedRoot <- prepareWorkspaceRoot environment file
case preparedRoot of
Left failure -> pure (Left failure)
Right request -> prepareSourceGraph environment request
classifyRootRequest :: FilePath -> IO (Either SourceError RootRequest)
classifyRootRequest file
| isAbsolute file = existingRoot file
| otherwise = pure (searchedRoot file)
data AuthorityFreeParseError
= AuthorityFreePreludeLoadFailed !Prelude.PreludeLoadError
| AuthorityFreePreludeParseFailed !Prelude.PreludeParseError
| AuthorityFreeWorkspaceFailed !ParseWorkspaceError
deriving (Show)
instance Exception.Exception AuthorityFreeParseError
renderAuthorityFreeParseError :: AuthorityFreeParseError -> Text
renderAuthorityFreeParseError = \case
AuthorityFreePreludeLoadFailed failure ->
"packaged final prelude loading failed: "
<> Prelude.renderPreludeLoadError failure
AuthorityFreePreludeParseFailed failure ->
"packaged final prelude parsing failed: "
<> Prelude.renderPreludeParseError failure
AuthorityFreeWorkspaceFailed failure ->
Parse.renderParseWorkspaceError failure
parseWorkspace
:: FilePath
-> IO (Either AuthorityFreeParseError [Raw.Block])
parseWorkspace file =
fmap Parse.importedBeforeImporterBlocks
<$> parseDefaultWorkspaceWithPrelude file
parse :: FilePath -> IO [Raw.Block]
parse file = parseWorkspace file >>= either Exception.throwIO pure
parseDefaultWorkspaceWithPrelude
:: FilePath
-> IO (Either AuthorityFreeParseError Parse.ParsedSourceWorkspace)
parseDefaultWorkspaceWithPrelude file =
Prelude.loadReservedPreludeSourceInput >>= \case
Left failure ->
pure (Left (AuthorityFreePreludeLoadFailed failure))
Right source ->
Prelude.parseReservedPreludeSource source >>= \case
Left failure ->
pure (Left (AuthorityFreePreludeParseFailed failure))
Right prelude -> do
preparedEnvironment <- prepareDefaultWorkspaceEnvironment
case preparedEnvironment of
Left failure ->
pure (Left (AuthorityFreeWorkspaceFailed failure))
Right environment -> do
preparedRoot <- prepareWorkspaceRoot environment file
case preparedRoot of
Left failure ->
pure
(Left
(AuthorityFreeWorkspaceFailed
failure))
Right request -> do
let syntax =
Parse.identifiedParsedModuleSyntaxInterface
(Prelude.reservedParsedPreludeModule
prelude)
first AuthorityFreeWorkspaceFailed
<$> Parse.parseSourceWorkspaceWithSyntaxInputsAndGraphValidation
(workspaceSourceMounts environment)
request
(const [syntax])
(Prelude.rejectOrdinaryPreludeSourceGraph
source)
lexFile :: FilePath -> IO (Text, [[Located Token]])
lexFile file = do
environment <- prepareDefaultWorkspaceEnvironment
>>= either throwWorkspaceError pure
request <- prepareWorkspaceRoot environment file
>>= either throwWorkspaceError pure
loaded <- resolveAndLoadRoot (workspaceSourceMounts environment) request
>>= either Exception.throwIO pure
let source = loadedSource loaded
raw = loadedText loaded
locationPath = resolvedSourceLocationPath source
canonicalPath =
canonicalPathFilePath (resolvedSourceCanonicalPath source)
registration <- registerFilePathWithDisplay canonicalPath locationPath
fileId <- either
(Exception.throwIO . SourceLocationRegistrationFailed source)
pure
registration
case runLexer fileId locationPath raw of
Left tokenError ->
Exception.throwIO (TokenError (errorBundlePretty tokenError))
Right (_imports, chunks) ->
pure (raw, chunks)
tokenize :: FilePath -> IO TokStream
tokenize file = do
(raw, chunks) <- lexFile file
pure (TokStream raw chunks)
scan :: FilePath -> IO [ScannedLexicalItem]
scan input = do
tokenStream <- tokenize input
concatMap (fmap unLocated)
<$> traverse
(either
(Exception.throwIO . LexicalScanFailure)
pure
. scanChunk)
(unTokStream tokenStream)
simpleStream :: TokStream -> [[Token]]
simpleStream TokStream{unTokStream = chunks} =
[unLocated <$> chunk | chunk <- chunks]
throwWorkspaceError :: ParseWorkspaceError -> IO value
throwWorkspaceError = \case
SourceWorkspaceError err -> Exception.throwIO err
err@SourceLexiconCollision{} -> Exception.throwIO err
err@SourceSyntaxPragmaError{} -> Exception.throwIO err
err@SourceSyntaxDeclarationError{} -> Exception.throwIO err
err@SourceSyntaxMaterializationError{} -> Exception.throwIO err
err@SourceParsedModuleKeyError{} -> Exception.throwIO err
SourceParseError _source err -> Exception.throwIO err
|
