Language.Haskell.LSP.VFS

Handles the Language.Haskell.LSP.Types.TextDocumentDidChange / Language.Haskell.LSP.Types.TextDocumentDidOpen / Language.Haskell.LSP.Types.TextDocumentDidClose messages to keep an in-memory filesystem of the current client workspace. The server can access and edit files in the client workspace by operating on the VFS in LspFuncs.

Documentation

type VFS = Map NormalizedUri VirtualFile

data VirtualFile

Constructors

VirtualFile

Fields

• _version :: Int
• _text :: Rope
• _tmp_file :: Maybe FilePath

Instances

Show VirtualFile

Defined in Language.Haskell.LSP.VFS

Methods

showsPrec :: Int -> VirtualFile -> ShowS

show :: VirtualFile -> String

showList :: [VirtualFile] -> ShowS

openVFS :: VFS -> DidOpenTextDocumentNotification -> IO VFS

changeFromClientVFS :: VFS -> DidChangeTextDocumentNotification -> IO VFS

changeFromServerVFS :: VFS -> ApplyWorkspaceEditRequest -> IO VFS

persistFileVFS :: VFS -> NormalizedUri -> IO (FilePath, VFS)

closeVFS :: VFS -> DidCloseTextDocumentNotification -> IO VFS

manipulating the file contents

rangeLinesFromVfs :: VirtualFile -> Range -> Text

data PosPrefixInfo

Describes the line at the current cursor position

Constructors

PosPrefixInfo

Fields

• fullLine :: Text

  The full contents of the line the cursor is at

• prefixModule :: Text

  If any, the module name that was typed right before the cursor position. For example, if the user has typed "Data.Maybe.from", then this property will be Data.Maybe

• prefixText :: Text

  The word right before the cursor position, after removing the module part. For example if the user has typed "Data.Maybe.from", then this property will be "from"

• cursorPos :: Position

  The cursor position

Instances

Eq PosPrefixInfo

Defined in Language.Haskell.LSP.VFS

Methods

(==) :: PosPrefixInfo -> PosPrefixInfo -> Bool

(/=) :: PosPrefixInfo -> PosPrefixInfo -> Bool

Show PosPrefixInfo

Defined in Language.Haskell.LSP.VFS

Methods

showsPrec :: Int -> PosPrefixInfo -> ShowS

show :: PosPrefixInfo -> String

showList :: [PosPrefixInfo] -> ShowS

getCompletionPrefix :: Monad m => Position -> VirtualFile -> m (Maybe PosPrefixInfo)

for tests

applyChanges :: Rope -> [TextDocumentContentChangeEvent] -> Rope

Apply the list of changes. Changes should be applied in the order that they are received from the client.

applyChange :: Rope -> TextDocumentContentChangeEvent -> Rope

changeChars :: Rope -> Int -> Int -> Text -> Rope