GHC.Hs.Dump

ghc-9.2.2: The GHC API

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