Language.Haskell.GHC.ExactPrint

ghc-exactprint is a library to manage manipulating Haskell source files. There are four components.

Types

data Comment

A Haskell comment. The AnnKeywordId is present if it has been converted from an AnnKeywordId because the annotation must be interleaved into the stream and does not have a well-defined position

Instances

Show Comment

Defined in Language.Haskell.GHC.ExactPrint.Types

Methods

showsPrec :: Int -> Comment -> ShowS

show :: Comment -> String

showList :: [Comment] -> ShowS

Outputable Comment

Defined in Language.Haskell.GHC.ExactPrint.Types

Methods

ppr :: Comment -> SDoc

Eq Comment

Defined in Language.Haskell.GHC.ExactPrint.Types

Methods

(==) :: Comment -> Comment -> Bool

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

Ord Comment

Defined in Language.Haskell.GHC.ExactPrint.Types

Methods

compare :: Comment -> Comment -> Ordering

(<) :: Comment -> Comment -> Bool

(<=) :: Comment -> Comment -> Bool

(>) :: Comment -> Comment -> Bool

(>=) :: Comment -> Comment -> Bool

max :: Comment -> Comment -> Comment

min :: Comment -> Comment -> Comment

Parsing

parseModule :: LibDir -> FilePath -> IO (ParseResult ParsedSource)

This entry point will also work out which language extensions are required and perform CPP processing if necessary.

parseModule = parseModuleWithCpp defaultCppOptions

Note: ParsedSource is a synonym for Located (HsModule GhcPs)

Transformation

module Language.Haskell.GHC.ExactPrint.Transform

Printing

exactPrint :: ExactPrint ast => Located ast -> String