Language.Haskell.Stylish.Module

Data types

type Module = Located HsModule

Concrete module type

newtype Comments

Comments associated with module

Constructors

Comments [RealLocated EpaComment]

type Lines = [String]

Getters

moduleImportGroups :: Module -> [NonEmpty (LImportDecl GhcPs)]

Get groups of imports from module

queryModule :: Typeable a => (a -> [b]) -> Module -> [b]

Query the module AST using f

groupByLine :: (a -> RealSrcSpan) -> [a] -> [NonEmpty a]

Imports

canMergeImport :: ImportDecl GhcPs -> ImportDecl GhcPs -> Bool

Returns true if the two import declarations can be merged

mergeModuleImport :: LImportDecl GhcPs -> LImportDecl GhcPs -> LImportDecl GhcPs

Merge two import declarations, keeping positions from the first

As alluded, this highlights an issue with merging imports. The GHC annotation comments aren't attached to any particular AST node. This means that right now, we're manually reconstructing the attachment. By merging two import declarations, we lose that mapping.

It's not really a big deal if we consider that people don't usually comment imports themselves. It _is_ however, systemic and it'd be better if we processed comments beforehand and attached them to all AST nodes in our own representation.

importModuleName :: ImportDecl GhcPs -> String

Pragmas

moduleLanguagePragmas :: Module -> [(RealSrcSpan, NonEmpty String)]

Orphan instances

Eq RawPkgQual

Methods

(==) :: RawPkgQual -> RawPkgQual -> Bool

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