Safe Haskell	Safe-Inferred
Language	Haskell2010

GHC.Hs.Dump

Contents

Dumping ASTs

Description

Contains a debug function to dump parts of the GHC.Hs AST. It uses a syb traversal which falls back to displaying based on the constructor name, so can be used to dump anything having a Data.Data instance.

Synopsis

showAstData :: Data a => BlankSrcSpan -> BlankEpAnnotations -> a -> SDoc
data BlankSrcSpan
- = BlankSrcSpan
- | BlankSrcSpanFile
- | NoBlankSrcSpan
data BlankEpAnnotations
- = BlankEpAnnotations
- | NoBlankEpAnnotations

Dumping ASTs

showAstData :: Data a => BlankSrcSpan -> BlankEpAnnotations -> a -> SDoc Source #

Show a GHC syntax tree. This parameterised because it is also used for comparing ASTs in ppr roundtripping tests, where the SrcSpan's are blanked out, to avoid comparing locations, only structure

data BlankSrcSpan Source #

Constructors

BlankSrcSpan
BlankSrcSpanFile
NoBlankSrcSpan

Instances

Instances details

Show BlankSrcSpan #
Instance details Defined in GHC.Hs.Dump Methods showsPrec :: Int -> BlankSrcSpan -> ShowS Source # show :: BlankSrcSpan -> String Source # showList :: [BlankSrcSpan] -> ShowS Source #
Eq BlankSrcSpan #
Instance details Defined in GHC.Hs.Dump Methods (==) :: BlankSrcSpan -> BlankSrcSpan -> Bool # (/=) :: BlankSrcSpan -> BlankSrcSpan -> Bool #

data BlankEpAnnotations Source #

Constructors

BlankEpAnnotations
NoBlankEpAnnotations

Instances

Instances details

Show BlankEpAnnotations #
Instance details Defined in GHC.Hs.Dump Methods showsPrec :: Int -> BlankEpAnnotations -> ShowS Source # show :: BlankEpAnnotations -> String Source # showList :: [BlankEpAnnotations] -> ShowS Source #
Eq BlankEpAnnotations #
Instance details Defined in GHC.Hs.Dump Methods (==) :: BlankEpAnnotations -> BlankEpAnnotations -> Bool # (/=) :: BlankEpAnnotations -> BlankEpAnnotations -> Bool #