| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Language.Haskell.GHC.ExactPrint.Utils
Contents
- ss2pos :: SrcSpan -> Pos
- ss2posEnd :: SrcSpan -> Pos
- undelta :: Pos -> DeltaPos -> LayoutStartCol -> Pos
- isPointSrcSpan :: SrcSpan -> Bool
- pos2delta :: Pos -> Pos -> DeltaPos
- ss2delta :: Pos -> SrcSpan -> DeltaPos
- addDP :: DeltaPos -> DeltaPos -> DeltaPos
- spanLength :: SrcSpan -> Int
- isGoodDelta :: DeltaPos -> Bool
- mkComment :: String -> SrcSpan -> Comment
- mkKWComment :: AnnKeywordId -> SrcSpan -> Comment
- dpFromString :: String -> DeltaPos
- comment2dp :: (Comment, DeltaPos) -> (KeywordId, DeltaPos)
- srcSpanStartLine :: SrcSpan -> Int
- srcSpanEndLine :: SrcSpan -> Int
- srcSpanStartColumn :: SrcSpan -> Int
- srcSpanEndColumn :: SrcSpan -> Int
- rdrName2String :: RdrName -> String
- isSymbolRdrName :: RdrName -> Bool
- tokComment :: Located AnnotationComment -> Comment
- isListComp :: HsStmtContext name -> Bool
- getAnnotationEP :: Data a => Located a -> Anns -> Maybe Annotation
- annTrueEntryDelta :: Annotation -> DeltaPos
- annCommentEntryDelta :: Annotation -> DeltaPos -> DeltaPos
- annLeadingCommentEntryDelta :: Annotation -> DeltaPos
- orderByKey :: [(SrcSpan, a)] -> [SrcSpan] -> [a]
- debug :: c -> String -> c
- debugM :: Monad m => String -> m ()
- warn :: c -> String -> c
- showGhc :: Outputable a => a -> String
- showAnnData :: Data a => Anns -> Int -> a -> String
- ghead :: String -> [a] -> a
- glast :: String -> [a] -> a
- gtail :: String -> [a] -> [a]
- gfromJust :: String -> Maybe a -> a
Manipulating Positons
undelta :: Pos -> DeltaPos -> LayoutStartCol -> Pos Source #
Apply the delta to the current position, taking into account the current column offset if advancing to a new line
isPointSrcSpan :: SrcSpan -> Bool Source #
Checks whether a SrcSpan has zero length.
pos2delta :: Pos -> Pos -> DeltaPos Source #
Convert the start of the second Pos to be an offset from the
first. The assumption is the reference starts before the second Pos
ss2delta :: Pos -> SrcSpan -> DeltaPos Source #
Create a delta from the current position to the start of the given
SrcSpan.
addDP :: DeltaPos -> DeltaPos -> DeltaPos Source #
Add together two DeltaPos taking into account newlines
DP (0, 1) `addDP` DP (0, 2) == DP (0, 3) DP (0, 9) `addDP` DP (1, 5) == DP (1, 5) DP (1, 4) `addDP` DP (1, 3) == DP (2, 3)
spanLength :: SrcSpan -> Int Source #
isGoodDelta :: DeltaPos -> Bool Source #
A good delta has no negative values.
Manipulating Comments
mkKWComment :: AnnKeywordId -> SrcSpan -> Comment Source #
Makes a comment which originates from a specific keyword.
dpFromString :: String -> DeltaPos Source #
Calculates the distance from the start of a string to the end of a string.
GHC Functions
srcSpanStartLine :: SrcSpan -> Int Source #
srcSpanEndLine :: SrcSpan -> Int Source #
srcSpanStartColumn :: SrcSpan -> Int Source #
srcSpanEndColumn :: SrcSpan -> Int Source #
rdrName2String :: RdrName -> String Source #
isSymbolRdrName :: RdrName -> Bool Source #
isListComp :: HsStmtContext name -> Bool Source #
Manipulating Annotations
getAnnotationEP :: Data a => Located a -> Anns -> Maybe Annotation Source #
annTrueEntryDelta :: Annotation -> DeltaPos Source #
The "true entry" is the distance from the last concrete element to the start of the current element.
annCommentEntryDelta :: Annotation -> DeltaPos -> DeltaPos Source #
Take an annotation and a required "true entry" and calculate an equivalent one relative to the last comment in the annPriorComments.
annLeadingCommentEntryDelta :: Annotation -> DeltaPos Source #
Return the DP of the first item that generates output, either a comment or the entry DP
General Utility
orderByKey :: [(SrcSpan, a)] -> [SrcSpan] -> [a] Source #
Given a list of items and a list of keys, returns a list of items ordered by their position in the list of keys.
For tests
debug :: c -> String -> c Source #
Provide a version of trace the comes at the end of the line, so it can easily be commented out when debugging different things.
showGhc :: Outputable a => a -> String Source #
Show a GHC.Outputable structure