Safe Haskell	None
Language	GHC2021

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
showAstDataFull :: Data a => 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

showAstDataFull :: Data a => a -> SDoc Source #

Show the full AST as the compiler sees it.

data BlankSrcSpan Source #

Should source spans be removed from output.

Constructors

BlankSrcSpan
BlankSrcSpanFile
NoBlankSrcSpan

Instances

Instances details

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

data BlankEpAnnotations Source #

Should EpAnnotations be removed from output.

Constructors

BlankEpAnnotations
NoBlankEpAnnotations

Instances

Instances details

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