GHC.Hs.Dump

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.

Dumping ASTs

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

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

Show the full AST as the compiler sees it.

data BlankSrcSpan

Should source spans be removed from output.

Constructors

BlankSrcSpan

BlankSrcSpanFile

NoBlankSrcSpan

Instances

Show BlankSrcSpan

Defined in GHC.Hs.Dump

Methods

showsPrec :: Int -> BlankSrcSpan -> ShowS

show :: BlankSrcSpan -> String

showList :: [BlankSrcSpan] -> ShowS

Eq BlankSrcSpan

Defined in GHC.Hs.Dump

Methods

(==) :: BlankSrcSpan -> BlankSrcSpan -> Bool

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

data BlankEpAnnotations

Should EpAnnotations be removed from output.

Constructors

BlankEpAnnotations

NoBlankEpAnnotations

Instances

Show BlankEpAnnotations

Defined in GHC.Hs.Dump

Methods

showsPrec :: Int -> BlankEpAnnotations -> ShowS

show :: BlankEpAnnotations -> String

showList :: [BlankEpAnnotations] -> ShowS

Eq BlankEpAnnotations

Defined in GHC.Hs.Dump

Methods

(==) :: BlankEpAnnotations -> BlankEpAnnotations -> Bool

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