@@ -1,8 +1,6 @@
1{-# LANGUAGE LambdaCase #-}
1{-# LANGUAGE LambdaCase #-}
2−{-# LANGUAGE MultiWayIf #-}
3{-# LANGUAGE OverloadedStrings #-}
2{-# LANGUAGE OverloadedStrings #-}
4{-# LANGUAGE RecordWildCards #-}
3{-# LANGUAGE RecordWildCards #-}
5−{-# LANGUAGE TypeApplications #-}
7module Ormolu.Printer.Meat.Declaration.Value
5module Ormolu.Printer.Meat.Declaration.Value
8 ( p_valDecl,
6 ( p_valDecl,
@@ -20,22 +18,23 @@ import Ctype (is_space)
20import Data.Bool (bool)
18import Data.Bool (bool)
21import Data.Char (isPunctuation, isSymbol)
19import Data.Char (isPunctuation, isSymbol)
22import Data.Data hiding (Infix, Prefix)
20import Data.Data hiding (Infix, Prefix)
23−import Data.Functor ((<&>))
24import Data.List (intersperse, sortOn)
21import Data.List (intersperse, sortOn)
25−import Data.List.NonEmpty (NonEmpty (..), (<|))
22+import Data.List.NonEmpty ((<|), NonEmpty ((:|)))
26import qualified Data.List.NonEmpty as NE
23import qualified Data.List.NonEmpty as NE
27import Data.Text (Text)
24import Data.Text (Text)
28import qualified Data.Text as Text
25import qualified Data.Text as Text
30−import OccName (occNameString)
27+import OccName (mkVarOcc)
31import Ormolu.Printer.Combinators
28import Ormolu.Printer.Combinators
32−import Ormolu.Printer.Internal
33import Ormolu.Printer.Meat.Common
29import Ormolu.Printer.Meat.Common
34import {-# SOURCE #-} Ormolu.Printer.Meat.Declaration
30import {-# SOURCE #-} Ormolu.Printer.Meat.Declaration
35import Ormolu.Printer.Meat.Declaration.Signature
31import Ormolu.Printer.Meat.Declaration.Signature
36import Ormolu.Printer.Meat.Type
32import Ormolu.Printer.Meat.Type
37import Ormolu.Printer.Operators
33import Ormolu.Printer.Operators
38import Ormolu.Utils
34import Ormolu.Utils
35+import RdrName (RdrName (..))
36+import RdrName (rdrNameOcc)
37+import SrcLoc (combineSrcSpans, isOneLineSpan)
40-- | Style of a group of equations.
39-- | Style of a group of equations.
41data MatchGroupStyle
40data MatchGroupStyle
@@ -61,16 +60,16 @@ data Placement
61 -- should use it and avoid bumping one level
60 -- should use it and avoid bumping one level
62 -- of indentation
61 -- of indentation
64− deriving (Eq, Show)
63+ deriving (Eq)
66p_valDecl :: HsBindLR GhcPs GhcPs -> R ()
65p_valDecl :: HsBindLR GhcPs GhcPs -> R ()
67p_valDecl = \case
66p_valDecl = \case
68− FunBind NoExtField funId funMatches _ _ -> p_funBind funId funMatches
67+ FunBind NoExt funId funMatches _ _ -> p_funBind funId funMatches
69− PatBind NoExtField pat grhss _ -> p_match PatternBind False NoSrcStrict [pat] grhss
68+ PatBind NoExt pat grhss _ -> p_match PatternBind False NoSrcStrict [pat] grhss
70 VarBind {} -> notImplemented "VarBinds" -- introduced by the type checker
69 VarBind {} -> notImplemented "VarBinds" -- introduced by the type checker
71 AbsBinds {} -> notImplemented "AbsBinds" -- introduced by the type checker
70 AbsBinds {} -> notImplemented "AbsBinds" -- introduced by the type checker
72− PatSynBind NoExtField psb -> p_patSynBind psb
71+ PatSynBind NoExt psb -> p_patSynBind psb
73− XHsBindsLR x -> noExtCon x
72+ XHsBindsLR NoExt -> notImplemented "XHsBindsLR"
75p_funBind ::
74p_funBind ::
76 Located RdrName ->
75 Located RdrName ->
@@ -100,7 +99,7 @@ p_matchGroup' placer render style MG {..} = do
100 Case -> id
99 Case -> id
101 LambdaCase -> id
100 LambdaCase -> id
102 _ -> dontUseBraces
101 _ -> dontUseBraces
103− -- Since we are forcing braces on 'sepSemi' based on 'ob', we have to
102+ -- NOTE since we are forcing braces on 'sepSemi' based on 'ob', we have to
104 -- restore the brace state inside the sepsemi.
103 -- restore the brace state inside the sepsemi.
105 ub <- bool dontUseBraces useBraces <$> canUseBraces
104 ub <- bool dontUseBraces useBraces <$> canUseBraces
106 ob $ sepSemi (located' (ub . p_Match)) (unLoc mg_alts)
105 ob $ sepSemi (located' (ub . p_Match)) (unLoc mg_alts)
@@ -114,8 +113,8 @@ p_matchGroup' placer render style MG {..} = do
114 (matchStrictness m)
113 (matchStrictness m)
117− p_Match (XMatch x) = noExtCon x
116+ p_Match _ = notImplemented "XMatch"
118−p_matchGroup' _ _ _ (XMatchGroup x) = noExtCon x
117+p_matchGroup' _ _ _ (XMatchGroup NoExt) = notImplemented "XMatchGroup"
120-- | Function id obtained through pattern matching on 'FunBind' should not
119-- | Function id obtained through pattern matching on 'FunBind' should not
121-- be used to print the actual equations because the different ‘RdrNames’
120-- be used to print the actual equations because the different ‘RdrNames’
@@ -169,8 +168,8 @@ p_match' ::
169 GRHSs GhcPs (Located body) ->
168 GRHSs GhcPs (Located body) ->
171p_match' placer render style isInfix strictness m_pats GRHSs {..} = do
170p_match' placer render style isInfix strictness m_pats GRHSs {..} = do
172− -- Normally, since patterns may be placed in a multi-line layout, it is
171+ -- NOTE Normally, since patterns may be placed in a multi-line layout, it
173− -- necessary to bump indentation for the pattern group so it's more
172+ -- is necessary to bump indentation for the pattern group so it's more
174 -- indented than function name. This in turn means that indentation for
173 -- indented than function name. This in turn means that indentation for
175 -- the body should also be bumped. Normally this would mean that bodies
174 -- the body should also be bumped. Normally this would mean that bodies
176 -- would start with two indentation steps applied, which is ugly, so we
175 -- would start with two indentation steps applied, which is ugly, so we
@@ -180,26 +179,27 @@ p_match' placer render style isInfix strictness m_pats GRHSs {..} = do
180 NoSrcStrict -> return ()
179 NoSrcStrict -> return ()
181 SrcStrict -> txt "!"
180 SrcStrict -> txt "!"
182 SrcLazy -> txt "~"
181 SrcLazy -> txt "~"
183− indentBody <- case NE.nonEmpty m_pats of
182+ inci' <- case NE.nonEmpty m_pats of
185− False <$ case style of
183+ Nothing -> id <$ case style of
186− Function name -> p_rdrName name
184+ Function name -> p_rdrName name
187− _ -> return ()
185+ _ -> return ()
188 Just ne_pats -> do
186 Just ne_pats -> do
189− let combinedSpans = case style of
187+ let combinedSpans =
190− Function name -> combineSrcSpans (getLoc name) patSpans
188+ combineSrcSpans' $
192− patSpans = combineSrcSpans' (getLoc <$> ne_pats)
189+ getLoc <$> ne_pats
193− indentBody = not (isOneLineSpan combinedSpans)
191+ if isOneLineSpan combinedSpans
194 switchLayout [combinedSpans] $ do
194 switchLayout [combinedSpans] $ do
195− let stdCase = sep breakpoint (located' p_pat) m_pats
195+ let stdCase = sep breakpoint p_pat m_pats
196 case style of
196 case style of
197 Function name ->
197 Function name ->
198 p_infixDefHelper
198 p_infixDefHelper
200− indentBody
200+ inci'
201 (p_rdrName name)
201 (p_rdrName name)
202− (located' p_pat <$> m_pats)
202+ (p_pat <$> m_pats)
203 PatternBind -> stdCase
203 PatternBind -> stdCase
204 Case -> stdCase
204 Case -> stdCase
205 Lambda -> do
205 Lambda -> do
@@ -212,32 +212,40 @@ p_match' placer render style isInfix strictness m_pats GRHSs {..} = do
212 when needsSpace space
212 when needsSpace space
213 sitcc stdCase
213 sitcc stdCase
214 LambdaCase -> stdCase
214 LambdaCase -> stdCase
215− return indentBody
215+ return inci'
216 let -- Calculate position of end of patterns. This is useful when we decide
216 let -- Calculate position of end of patterns. This is useful when we decide
217 -- about putting certain constructions in hanging positions.
217 -- about putting certain constructions in hanging positions.
218 endOfPats = case NE.nonEmpty m_pats of
218 endOfPats = case NE.nonEmpty m_pats of
219 Nothing -> case style of
219 Nothing -> case style of
220− Function name -> Just (getLoc name)
220+ Function name -> (Just . srcSpanEnd . getLoc) name
221 _ -> Nothing
221 _ -> Nothing
222− Just pats -> (Just . getLoc . NE.last) pats
222+ Just pats -> (Just . srcSpanEnd . getLoc . NE.last) pats
223 isCase = \case
223 isCase = \case
224 Case -> True
224 Case -> True
225 LambdaCase -> True
225 LambdaCase -> True
226 _ -> False
226 _ -> False
227− hasGuards = withGuards grhssGRHSs
227+ let hasGuards = withGuards grhssGRHSs
228+ unless (length grhssGRHSs > 1) $
230+ Function _ | hasGuards -> return ()
231+ Function _ -> space >> txt "="
232+ PatternBind -> space >> txt "="
233+ s | isCase s && hasGuards -> return ()
234+ _ -> space >> txt "->"
228− grhssSpan =
235+ let grhssSpan =
229 combineSrcSpans' $
236 combineSrcSpans' $
230 getGRHSSpan . unLoc <$> NE.fromList grhssGRHSs
237 getGRHSSpan . unLoc <$> NE.fromList grhssGRHSs
231 patGrhssSpan =
238 patGrhssSpan =
233 grhssSpan
240 grhssSpan
234− (combineSrcSpans grhssSpan . srcLocSpan . srcSpanEnd)
241+ (combineSrcSpans grhssSpan . srcLocSpan)
235 endOfPats
242 endOfPats
236 placement =
243 placement =
237 case endOfPats of
244 case endOfPats of
238 Nothing -> blockPlacement placer grhssGRHSs
245 Nothing -> blockPlacement placer grhssGRHSs
239 Just spn ->
246 Just spn ->
240− if onTheSameLine spn grhssSpan
248+ (mkSrcSpan spn (srcSpanStart grhssSpan))
241 then blockPlacement placer grhssGRHSs
249 then blockPlacement placer grhssGRHSs
242 else Normal
250 else Normal
243 p_body = do
251 p_body = do
@@ -253,18 +261,11 @@ p_match' placer render style isInfix strictness m_pats GRHSs {..} = do
253 txt "where"
261 txt "where"
254 unless whereIsEmpty breakpoint
262 unless whereIsEmpty breakpoint
255 inci $ located grhssLocalBinds p_hsLocalBinds
263 inci $ located grhssLocalBinds p_hsLocalBinds
256− inciIf indentBody $ do
264+ inci' $ do
257− unless (length grhssGRHSs > 1) $
259− Function _ | hasGuards -> return ()
260− Function _ -> space >> inci equals
261− PatternBind -> space >> inci equals
262− s | isCase s && hasGuards -> return ()
263− _ -> space >> txt "->"
264 switchLayout [patGrhssSpan] $
265 switchLayout [patGrhssSpan] $
265 placeHanging placement p_body
266 placeHanging placement p_body
266 inci p_where
267 inci p_where
267−p_match' _ _ _ _ _ _ (XGRHSs x) = noExtCon x
268+p_match' _ _ _ _ _ _ XGRHSs {} = notImplemented "XGRHSs"
269p_grhs :: GroupStyle -> GRHS GhcPs (LHsExpr GhcPs) -> R ()
270p_grhs :: GroupStyle -> GRHS GhcPs (LHsExpr GhcPs) -> R ()
270p_grhs = p_grhs' exprPlacement p_hsExpr
271p_grhs = p_grhs' exprPlacement p_hsExpr
@@ -278,109 +279,79 @@ p_grhs' ::
278 GroupStyle ->
279 GroupStyle ->
279 GRHS GhcPs (Located body) ->
280 GRHS GhcPs (Located body) ->
281−p_grhs' placer render style (GRHS NoExtField guards body) =
282+p_grhs' placer render style (GRHS NoExt guards body) =
282 case guards of
283 case guards of
283 [] -> p_body
284 [] -> p_body
287− sitcc (sep commaDel (sitcc . located' p_stmt) xs)
288+ sitcc (sep (comma >> breakpoint) (sitcc . located' p_stmt) xs)
289− inci $ case style of
290+ txt $ case style of
290− EqualSign -> equals
291+ EqualSign -> "="
291− RightArrow -> txt "->"
292+ RightArrow -> "->"
292 placeHanging placement p_body
293 placeHanging placement p_body
294 placement =
295 placement =
295 case endOfGuards of
296 case endOfGuards of
296 Nothing -> placer (unLoc body)
297 Nothing -> placer (unLoc body)
297 Just spn ->
298 Just spn ->
298− if onTheSameLine spn (getLoc body)
299+ if isOneLineSpan (mkSrcSpan spn (srcSpanStart (getLoc body)))
299 then placer (unLoc body)
300 then placer (unLoc body)
300 else Normal
301 else Normal
301 endOfGuards =
302 endOfGuards =
302 case NE.nonEmpty guards of
303 case NE.nonEmpty guards of
303 Nothing -> Nothing
304 Nothing -> Nothing
304− Just gs -> (Just . getLoc . NE.last) gs
305+ Just gs -> (Just . srcSpanEnd . getLoc . NE.last) gs
305 p_body = located body render
306 p_body = located body render
306−p_grhs' _ _ _ (XGRHS x) = noExtCon x
307+p_grhs' _ _ _ (XGRHS NoExt) = notImplemented "XGRHS"
308p_hsCmd :: HsCmd GhcPs -> R ()
309p_hsCmd :: HsCmd GhcPs -> R ()
309p_hsCmd = \case
310p_hsCmd = \case
310− HsCmdArrApp NoExtField body input arrType _ -> do
311+ HsCmdArrApp NoExt body input arrType _ -> do
311 located body p_hsExpr
312 located body p_hsExpr
312− breakpoint
313+ space
314− case arrType of
314+ case arrType of
315− HsFirstOrderApp -> txt "-<"
315+ HsFirstOrderApp -> txt "-<"
316− HsHigherOrderApp -> txt "-<<"
316+ HsHigherOrderApp -> txt "-<<"
317− placeHanging (exprPlacement (unLoc input)) $
317+ placeHanging (exprPlacement (unLoc input)) $
318− located input p_hsExpr
318+ located input p_hsExpr
319− HsCmdArrForm NoExtField form Prefix _ cmds -> banana $ do
319+ HsCmdArrForm NoExt form Prefix _ cmds -> banana $ sitcc $ do
320 located form p_hsExpr
320 located form p_hsExpr
321 unless (null cmds) $ do
321 unless (null cmds) $ do
322 breakpoint
322 breakpoint
323 inci (sequence_ (intersperse breakpoint (located' p_hsCmdTop <$> cmds)))
323 inci (sequence_ (intersperse breakpoint (located' p_hsCmdTop <$> cmds)))
324− HsCmdArrForm NoExtField form Infix _ [left, right] -> do
324+ HsCmdArrForm NoExt form Infix _ [left, right] -> do
325 located left p_hsCmdTop
325 located left p_hsCmdTop
327 located form p_hsExpr
327 located form p_hsExpr
328 placeHanging (cmdTopPlacement (unLoc right)) $
328 placeHanging (cmdTopPlacement (unLoc right)) $
329 located right p_hsCmdTop
329 located right p_hsCmdTop
330− HsCmdArrForm NoExtField _ Infix _ _ -> notImplemented "HsCmdArrForm"
330+ HsCmdArrForm NoExt _ Infix _ _ -> notImplemented "HsCmdArrForm"
331 HsCmdApp {} ->
331 HsCmdApp {} ->
332 -- XXX Does this ever occur in the syntax tree? It does not seem like it
332 -- XXX Does this ever occur in the syntax tree? It does not seem like it
333 -- does. Open an issue and ping @yumiova if this ever occurs in output.
333 -- does. Open an issue and ping @yumiova if this ever occurs in output.
334 notImplemented "HsCmdApp"
334 notImplemented "HsCmdApp"
335− HsCmdLam NoExtField mgroup -> p_matchGroup' cmdPlacement p_hsCmd Lambda mgroup
335+ HsCmdLam NoExt mgroup -> p_matchGroup' cmdPlacement p_hsCmd Lambda mgroup
336− HsCmdPar NoExtField c -> parens N (located c p_hsCmd)
336+ HsCmdPar NoExt c -> parens N (located c p_hsCmd)
337− HsCmdCase NoExtField e mgroup ->
337+ HsCmdCase NoExt e mgroup ->
338 p_case cmdPlacement p_hsCmd e mgroup
338 p_case cmdPlacement p_hsCmd e mgroup
339− HsCmdIf NoExtField _ if' then' else' ->
339+ HsCmdIf NoExt _ if' then' else' ->
340 p_if cmdPlacement p_hsCmd if' then' else'
340 p_if cmdPlacement p_hsCmd if' then' else'
341− HsCmdLet NoExtField localBinds c ->
341+ HsCmdLet NoExt localBinds c ->
342 p_let p_hsCmd localBinds c
342 p_let p_hsCmd localBinds c
343− HsCmdDo NoExtField es -> do
343+ HsCmdDo NoExt es -> do
346 inci . located es $
346 inci . located es $
347− sitcc . sep newline (sitcc . withSpacing (p_stmt' cmdPlacement p_hsCmd))
347+ sitcc . sep newline (located' (sitcc . p_stmt' cmdPlacement p_hsCmd))
348 HsCmdWrap {} -> notImplemented "HsCmdWrap"
348 HsCmdWrap {} -> notImplemented "HsCmdWrap"
349− XCmd x -> noExtCon x
349+ XCmd {} -> notImplemented "XCmd"
351p_hsCmdTop :: HsCmdTop GhcPs -> R ()
351p_hsCmdTop :: HsCmdTop GhcPs -> R ()
352p_hsCmdTop = \case
352p_hsCmdTop = \case
353− HsCmdTop NoExtField cmd -> located cmd p_hsCmd
353+ HsCmdTop NoExt cmd -> located cmd p_hsCmd
354− XCmdTop x -> noExtCon x
354+ XCmdTop {} -> notImplemented "XHsCmdTop"
356−-- | Render an expression preserving blank lines between such consecutive
357−-- expressions found in the original source code.
359− -- | Rendering function
361− -- | Entity to render
364−withSpacing f l = located l $ \x -> do
366− UnhelpfulSpan _ -> f x
367− RealSrcSpan currentSpn -> do
368− getSpanMark >>= \case
369− -- Spacing before comments will be handled by the code
370− -- that prints comments, so we just have to deal with
371− -- blank lines between statements here.
372− Just (StatementSpan lastSpn) ->
373− if srcSpanStartLine currentSpn > srcSpanEndLine lastSpn + 1
378− -- In some cases the (f x) expression may insert a new mark. We want
379− -- to be careful not to override comment marks.
380− getSpanMark >>= \case
381− Just (HaddockSpan _ _) -> return ()
382− Just (CommentSpan _) -> return ()
383− _ -> setSpanMark (StatementSpan currentSpn)
385p_stmt :: Stmt GhcPs (LHsExpr GhcPs) -> R ()
356p_stmt :: Stmt GhcPs (LHsExpr GhcPs) -> R ()
386p_stmt = p_stmt' exprPlacement p_hsExpr
357p_stmt = p_stmt' exprPlacement p_hsExpr
@@ -395,13 +366,16 @@ p_stmt' ::
395 Stmt GhcPs (Located body) ->
366 Stmt GhcPs (Located body) ->
397p_stmt' placer render = \case
368p_stmt' placer render = \case
398− LastStmt NoExtField body _ _ -> located body render
369+ LastStmt NoExt body _ _ -> located body render
399− BindStmt NoExtField p f _ _ -> do
370+ BindStmt NoExt p f _ _ -> do
400− located p p_pat
371+ p_pat p
374+ -- https://gitlab.haskell.org/ghc/ghc/issues/17330
403− let loc = getLoc p
375+ let loc = case p of
376+ XPat pat -> getLoc pat
377+ _ -> error "p_stmt': BindStmt: Pat does not contain a location"
404− placement =
378+ let placement =
405 case f of
379 case f of
406 L l' x ->
380 L l' x ->
407 if isOneLineSpan
381 if isOneLineSpan
@@ -411,20 +385,20 @@ p_stmt' placer render = \case
411 switchLayout [loc, getLoc f] $
385 switchLayout [loc, getLoc f] $
412 placeHanging placement (located f render)
386 placeHanging placement (located f render)
413 ApplicativeStmt {} -> notImplemented "ApplicativeStmt" -- generated by renamer
387 ApplicativeStmt {} -> notImplemented "ApplicativeStmt" -- generated by renamer
414− BodyStmt NoExtField body _ _ -> located body render
388+ BodyStmt NoExt body _ _ -> located body render
415− LetStmt NoExtField binds -> do
389+ LetStmt NoExt binds -> do
416 txt "let"
390 txt "let"
418 sitcc $ located binds p_hsLocalBinds
392 sitcc $ located binds p_hsLocalBinds
419 ParStmt {} ->
393 ParStmt {} ->
420− -- 'ParStmt' should always be eliminated in 'gatherStmt' already, such
394+ -- NOTE 'ParStmt' should always be eliminated in 'gatherStmt' already,
421− -- that it never occurs in 'p_stmt''. Consequently, handling it here
395+ -- such that it never occurs in 'p_stmt''. Consequently, handling it
422− -- would be redundant.
396+ -- here would be redundant.
423 notImplemented "ParStmt"
397 notImplemented "ParStmt"
424 TransStmt {..} ->
398 TransStmt {..} ->
425− -- 'TransStmt' only needs to account for render printing itself, since
399+ -- NOTE 'TransStmt' only needs to account for render printing itself,
426− -- pretty printing of relevant statements (e.g., in 'trS_stmts') is
400+ -- since pretty printing of relevant statements (e.g., in 'trS_stmts')
427− -- handled through 'gatherStmt'.
401+ -- is handled through 'gatherStmt'.
428 case (trS_form, trS_by) of
402 case (trS_form, trS_by) of
429 (ThenForm, Nothing) -> do
403 (ThenForm, Nothing) -> do
430 txt "then"
404 txt "then"
@@ -453,11 +427,11 @@ p_stmt' placer render = \case
453 RecStmt {..} -> do
427 RecStmt {..} -> do
454 txt "rec"
428 txt "rec"
456− sitcc $ sepSemi (withSpacing (p_stmt' placer render)) recS_stmts
430+ sitcc $ sepSemi (located' (p_stmt' placer render)) recS_stmts
457− XStmtLR c -> noExtCon c
431+ XStmtLR {} -> notImplemented "XStmtLR"
459gatherStmt :: ExprLStmt GhcPs -> [[ExprLStmt GhcPs]]
433gatherStmt :: ExprLStmt GhcPs -> [[ExprLStmt GhcPs]]
460−gatherStmt (L _ (ParStmt NoExtField block _ _)) =
434+gatherStmt (L _ (ParStmt NoExt block _ _)) =
461 foldr ((<>) . gatherStmtBlock) [] block
435 foldr ((<>) . gatherStmtBlock) [] block
462gatherStmt (L s stmt@TransStmt {..}) =
436gatherStmt (L s stmt@TransStmt {..}) =
463 foldr liftAppend [] ((gatherStmt <$> trS_stmts) <> pure [[L s stmt]])
437 foldr liftAppend [] ((gatherStmt <$> trS_stmts) <> pure [[L s stmt]])
@@ -466,46 +440,46 @@ gatherStmt stmt = [[stmt]]
466gatherStmtBlock :: ParStmtBlock GhcPs GhcPs -> [[ExprLStmt GhcPs]]
440gatherStmtBlock :: ParStmtBlock GhcPs GhcPs -> [[ExprLStmt GhcPs]]
467gatherStmtBlock (ParStmtBlock _ stmts _ _) =
441gatherStmtBlock (ParStmtBlock _ stmts _ _) =
468 foldr (liftAppend . gatherStmt) [] stmts
442 foldr (liftAppend . gatherStmt) [] stmts
469−gatherStmtBlock (XParStmtBlock x) = noExtCon x
443+gatherStmtBlock XParStmtBlock {} = notImplemented "XParStmtBlock"
471p_hsLocalBinds :: HsLocalBindsLR GhcPs GhcPs -> R ()
445p_hsLocalBinds :: HsLocalBindsLR GhcPs GhcPs -> R ()
472p_hsLocalBinds = \case
446p_hsLocalBinds = \case
473− HsValBinds NoExtField (ValBinds NoExtField bag lsigs) -> do
447+ HsValBinds NoExt (ValBinds NoExt bag lsigs) -> do
450+ (srcSpanStart . getLoc)
451+ (srcSpanStart . getLoc)
453+ (Left <$> bagToList bag) ++ (Right <$> lsigs)
454+ p_item (Left x) = located x p_valDecl
455+ p_item (Right x) = located x p_sigDecl
456+ -- Assigns 'False' to the last element, 'True' to the rest.
457+ markInit :: [a] -> [(Bool, a)]
459+ markInit (x : []) = [(False, x)]
460+ markInit (x : xs) = (True, x) : markInit xs
474− -- When in a single-line layout, there is a chance that the inner
461+ -- NOTE When in a single-line layout, there is a chance that the inner
475 -- elements will also contain semicolons and they will confuse the
462 -- elements will also contain semicolons and they will confuse the
476 -- parser. so we request braces around every element except the last.
463 -- parser. so we request braces around every element except the last.
477 br <- layoutToBraces <$> getLayout
464 br <- layoutToBraces <$> getLayout
478− let items =
465+ sitcc $
479− let injectLeft (L l x) = L l (Left x)
466+ sepSemi
480− injectRight (L l x) = L l (Right x)
467+ (\(m, i) -> (if m then br else id) $ p_item i)
481− in (injectLeft <$> bagToList bag) ++ (injectRight <$> lsigs)
468+ (markInit $ sortOn ssStart items)
482− positionToBracing = \case
488− positionToBracing p $
489− withSpacing (either p_valDecl p_sigDecl) item
490− binds = sortOn (srcSpanStart . getLoc) items
491− sitcc $ sepSemi p_item' (attachRelativePos binds)
492− HsValBinds NoExtField _ -> notImplemented "HsValBinds"
469+ HsValBinds NoExt _ -> notImplemented "HsValBinds"
493− HsIPBinds NoExtField (IPBinds NoExtField xs) ->
470+ HsIPBinds NoExt (IPBinds NoExt xs) ->
494 -- Second argument of IPBind is always Left before type-checking.
471 -- Second argument of IPBind is always Left before type-checking.
495− let p_ipBind (IPBind NoExtField (Left name) expr) = do
472+ let p_ipBind (IPBind NoExt (Left name) expr) = do
496 atom name
473 atom name
499 breakpoint
476 breakpoint
500 useBraces $ inci $ located expr p_hsExpr
477 useBraces $ inci $ located expr p_hsExpr
501− p_ipBind (IPBind NoExtField (Right _) _) =
502− -- Should only occur after the type checker
503− notImplemented "IPBind _ (Right _) _"
478+ p_ipBind _ = notImplemented "XHsIPBinds"
504− p_ipBind (XIPBind x) = noExtCon x
505 in sepSemi (located' p_ipBind) xs
479 in sepSemi (located' p_ipBind) xs
506− HsIPBinds NoExtField _ -> notImplemented "HsIpBinds"
480+ HsIPBinds NoExt _ -> notImplemented "HsIpBinds"
507− EmptyLocalBinds NoExtField -> return ()
481+ EmptyLocalBinds NoExt -> return ()
508− XHsLocalBindsLR x -> noExtCon x
482+ XHsLocalBindsLR _ -> notImplemented "XHsLocalBindsLR"
510p_hsRecField ::
484p_hsRecField ::
511 HsRecField' RdrName (LHsExpr GhcPs) ->
485 HsRecField' RdrName (LHsExpr GhcPs) ->
@@ -514,45 +488,48 @@ p_hsRecField HsRecField {..} = do
514 p_rdrName hsRecFieldLbl
488 p_rdrName hsRecFieldLbl
515 unless hsRecPun $ do
489 unless hsRecPun $ do
519− if onTheSameLine (getLoc hsRecFieldLbl) (getLoc hsRecFieldArg)
520− then exprPlacement (unLoc hsRecFieldArg)
492+ let placement = exprPlacement (unLoc hsRecFieldArg)
522− placeHanging placement (located hsRecFieldArg p_hsExpr)
493+ placeHanging placement $ located hsRecFieldArg p_hsExpr
495+p_hsTupArg :: HsTupArg GhcPs -> R ()
497+ Present NoExt x -> located x p_hsExpr
498+ Missing NoExt -> pure ()
499+ XTupArg {} -> notImplemented "XTupArg"
524p_hsExpr :: HsExpr GhcPs -> R ()
501p_hsExpr :: HsExpr GhcPs -> R ()
525p_hsExpr = p_hsExpr' N
502p_hsExpr = p_hsExpr' N
527p_hsExpr' :: BracketStyle -> HsExpr GhcPs -> R ()
504p_hsExpr' :: BracketStyle -> HsExpr GhcPs -> R ()
528p_hsExpr' s = \case
505p_hsExpr' s = \case
529− HsVar NoExtField name -> p_rdrName name
506+ HsVar NoExt name -> p_rdrName name
530− HsUnboundVar NoExtField v -> atom (unboundVarOcc v)
507+ HsUnboundVar NoExt _ -> notImplemented "HsUnboundVar"
531− HsConLikeOut NoExtField _ -> notImplemented "HsConLikeOut"
508+ HsConLikeOut NoExt _ -> notImplemented "HsConLikeOut"
532− HsRecFld NoExtField x ->
509+ HsRecFld NoExt x ->
533 case x of
510 case x of
534− Unambiguous NoExtField name -> p_rdrName name
511+ Unambiguous NoExt name -> p_rdrName name
535− Ambiguous NoExtField name -> p_rdrName name
512+ Ambiguous NoExt name -> p_rdrName name
536− XAmbiguousFieldOcc xx -> noExtCon xx
513+ XAmbiguousFieldOcc NoExt -> notImplemented "XAmbiguousFieldOcc"
537− HsOverLabel NoExtField _ v -> do
514+ HsOverLabel NoExt _ v -> do
540− HsIPVar NoExtField (HsIPName name) -> do
517+ HsIPVar NoExt (HsIPName name) -> do
542 atom name
519 atom name
543− HsOverLit NoExtField v -> atom (ol_val v)
520+ HsOverLit NoExt v -> atom (ol_val v)
544− HsLit NoExtField lit ->
521+ HsLit NoExt lit ->
545 case lit of
522 case lit of
546 HsString (SourceText stxt) _ -> p_stringLit stxt
523 HsString (SourceText stxt) _ -> p_stringLit stxt
547 HsStringPrim (SourceText stxt) _ -> p_stringLit stxt
524 HsStringPrim (SourceText stxt) _ -> p_stringLit stxt
548 r -> atom r
525 r -> atom r
549− HsLam NoExtField mgroup ->
526+ HsLam NoExt mgroup ->
550 p_matchGroup Lambda mgroup
527 p_matchGroup Lambda mgroup
551− HsLamCase NoExtField mgroup -> do
528+ HsLamCase NoExt mgroup -> do
552 txt "\\case"
529 txt "\\case"
553 breakpoint
530 breakpoint
554 inci (p_matchGroup LambdaCase mgroup)
531 inci (p_matchGroup LambdaCase mgroup)
555− HsApp NoExtField f x -> do
532+ HsApp NoExt f x -> do
556 let -- In order to format function applications with multiple parameters
533 let -- In order to format function applications with multiple parameters
557 -- nicer, traverse the AST to gather the function and all the
534 -- nicer, traverse the AST to gather the function and all the
558 -- parameters together.
535 -- parameters together.
@@ -564,10 +541,8 @@ p_hsExpr' s = \case
564 -- We need to handle the last argument specially if it is a
541 -- We need to handle the last argument specially if it is a
565 -- hanging construct, so separate it from the rest.
542 -- hanging construct, so separate it from the rest.
566 (initp, lastp) = (NE.init args, NE.last args)
543 (initp, lastp) = (NE.init args, NE.last args)
568− combineSrcSpans' $
544+ initSpan = combineSrcSpans' $ getLoc f :| map getLoc initp
569− getLoc f :| [(srcLocSpan . srcSpanStart . getLoc) lastp]
570− -- Hang the last argument only if the initial arguments span one
545+ -- Hang the last argument only if the initial arguments spans one
572 placement =
547 placement =
573 if isOneLineSpan initSpan
548 if isOneLineSpan initSpan
@@ -579,26 +554,11 @@ p_hsExpr' s = \case
580 case placement of
555 case placement of
581 Normal -> do
556 Normal -> do
582− let -- Usually we want to bump indentation for arguments for the
583− -- sake of readability. However, when the function itself is a
584− -- do-block or case expression it is not a good idea. It seems
585− -- to be safe to always bump indentation when the function
586− -- expression is parenthesised.
589− L _ (HsPar NoExtField _) -> True
590− L _ (HsAppType NoExtField _ _) -> True
591− L _ (HsMultiIf NoExtField _) -> True
592− L spn _ -> isOneLineSpan spn
595− SingleLine -> useBraces
557+ useBraces $ do
598 located func (p_hsExpr' s)
558 located func (p_hsExpr' s)
599 breakpoint
559 breakpoint
600− inciIf doIndent $ sep breakpoint (located' p_hsExpr) initp
560+ inci $ sep breakpoint (located' p_hsExpr) initp
601− inciIf doIndent $ do
561+ inci $ do
602 unless (null initp) breakpoint
562 unless (null initp) breakpoint
603 located lastp p_hsExpr
563 located lastp p_hsExpr
604 Hanging -> do
564 Hanging -> do
@@ -608,87 +568,75 @@ p_hsExpr' s = \case
608 sep breakpoint (located' p_hsExpr) initp
568 sep breakpoint (located' p_hsExpr) initp
609 placeHanging placement $
569 placeHanging placement $
610 located lastp p_hsExpr
570 located lastp p_hsExpr
611− HsAppType NoExtField e a -> do
571+ HsAppType NoExt e a -> do
612 located e p_hsExpr
572 located e p_hsExpr
613 breakpoint
573 breakpoint
614 inci $ do
574 inci $ do
616− -- Insert a space when the type is represented as a TH splice to avoid
617− -- gluing @ and $ together.
618− case unLoc (hswc_body a) of
619− HsSpliceTy {} -> space
621 located (hswc_body a) p_hsType
576 located (hswc_body a) p_hsType
622− OpApp NoExtField x op y -> do
577+ OpApp NoExt x op y -> do
623 let opTree = OpBranch (exprOpTree x) op (exprOpTree y)
578 let opTree = OpBranch (exprOpTree x) op (exprOpTree y)
624− p_exprOpTree s (reassociateOpTree getOpName opTree)
579+ p_exprOpTree True s (reassociateOpTree getOpName opTree)
625− NegApp NoExtField e _ -> do
580+ NegApp NoExt e _ -> do
628 located e p_hsExpr
583 located e p_hsExpr
629− HsPar NoExtField e ->
584+ HsPar NoExt e ->
630 parens s (located e (dontUseBraces . p_hsExpr))
585 parens s (located e (dontUseBraces . p_hsExpr))
631− SectionL NoExtField x op -> do
586+ SectionL NoExt x op -> do
632 located x p_hsExpr
587 located x p_hsExpr
633 breakpoint
588 breakpoint
634 inci (located op p_hsExpr)
589 inci (located op p_hsExpr)
635− SectionR NoExtField op x -> do
590+ SectionR NoExt op x -> do
636 located op p_hsExpr
591 located op p_hsExpr
637− useRecordDot' <- useRecordDot
638− let isRecordDot' = isRecordDot (unLoc op) (getLoc x)
639− unless (useRecordDot' && isRecordDot') breakpoint
592+ breakpoint
640 inci (located x p_hsExpr)
593 inci (located x p_hsExpr)
641− ExplicitTuple NoExtField args boxity ->
594+ ExplicitTuple NoExt args boxity -> do
642 let isSection = any (isMissing . unLoc) args
595 let isSection = any (isMissing . unLoc) args
643 isMissing = \case
596 isMissing = \case
644− Missing NoExtField -> True
597+ Missing NoExt -> True
645 _ -> False
598 _ -> False
647− Present NoExtField x -> located x p_hsExpr
648− Missing NoExtField -> pure ()
649− XTupArg x -> noExtCon x
650− p_larg = sitcc . located' p_arg
651− parens' =
599+ let parens' =
652 case boxity of
600 case boxity of
653 Boxed -> parens
601 Boxed -> parens
654 Unboxed -> parensHash
602 Unboxed -> parensHash
655− in if isSection
603+ if isSection
657− switchLayout [] . parens' s $
605+ switchLayout [] . parens' s $
658− sep comma p_larg args
606+ sep comma (located' p_hsTupArg) args
660− switchLayout (getLoc <$> args) . parens' s $
608+ switchLayout (getLoc <$> args) . parens' s . sitcc $
661− sep commaDel p_larg args
609+ sep (comma >> breakpoint) (sitcc . located' p_hsTupArg) args
662− ExplicitSum NoExtField tag arity e ->
610+ ExplicitSum NoExt tag arity e ->
663 p_unboxedSum N tag arity (located e p_hsExpr)
611 p_unboxedSum N tag arity (located e p_hsExpr)
664− HsCase NoExtField e mgroup ->
612+ HsCase NoExt e mgroup ->
665 p_case exprPlacement p_hsExpr e mgroup
613 p_case exprPlacement p_hsExpr e mgroup
666− HsIf NoExtField _ if' then' else' ->
614+ HsIf NoExt _ if' then' else' ->
667 p_if exprPlacement p_hsExpr if' then' else'
615 p_if exprPlacement p_hsExpr if' then' else'
668− HsMultiIf NoExtField guards -> do
616+ HsMultiIf NoExt guards -> do
670 breakpoint
618 breakpoint
671− inci . inci $ sep newline (located' (p_grhs RightArrow)) guards
619+ inci . sitcc $ sep newline (located' (p_grhs RightArrow)) guards
672− HsLet NoExtField localBinds e ->
620+ HsLet NoExt localBinds e ->
673 p_let p_hsExpr localBinds e
621 p_let p_hsExpr localBinds e
674− HsDo NoExtField ctx es -> do
622+ HsDo NoExt ctx es -> do
675 let doBody header = do
623 let doBody header = do
676 txt header
624 txt header
677 breakpoint
625 breakpoint
678 ub <- layoutToBraces <$> getLayout
626 ub <- layoutToBraces <$> getLayout
681− (ub . withSpacing (p_stmt' exprPlacement (p_hsExpr' S)))
629+ (located' (ub . p_stmt' exprPlacement (p_hsExpr' S)))
682 (unLoc es)
630 (unLoc es)
683− compBody = brackets N . located es $ \xs -> do
631+ compBody = brackets N $ located es $ \xs -> do
684 let p_parBody =
632 let p_parBody =
686− (breakpoint >> txt "|" >> space)
634+ (breakpoint >> txt "| ")
687 p_seqBody
635 p_seqBody
688 p_seqBody =
636 p_seqBody =
691− commaDel
639+ (comma >> breakpoint)
692 (located' (sitcc . p_stmt))
640 (located' (sitcc . p_stmt))
693 stmts = init xs
641 stmts = init xs
694 yield = last xs
642 yield = last xs
@@ -709,96 +657,90 @@ p_hsExpr' s = \case
709 ParStmtCtxt _ -> notImplemented "ParStmtCtxt"
657 ParStmtCtxt _ -> notImplemented "ParStmtCtxt"
710 TransStmtCtxt _ -> notImplemented "TransStmtCtxt"
658 TransStmtCtxt _ -> notImplemented "TransStmtCtxt"
711 ExplicitList _ _ xs ->
659 ExplicitList _ _ xs ->
712− brackets s $
660+ brackets s . sitcc $
713− sep commaDel (sitcc . located' p_hsExpr) xs
661+ sep (comma >> breakpoint) (sitcc . located' p_hsExpr) xs
714 RecordCon {..} -> do
662 RecordCon {..} -> do
715 located rcon_con_name atom
663 located rcon_con_name atom
716 breakpoint
664 breakpoint
717 let HsRecFields {..} = rcon_flds
665 let HsRecFields {..} = rcon_flds
718 updName f =
666 updName f =
719− (f :: HsRecField GhcPs (LHsExpr GhcPs))
667+ f
720 { hsRecFieldLbl = case unLoc $ hsRecFieldLbl f of
668 { hsRecFieldLbl = case unLoc $ hsRecFieldLbl f of
721 FieldOcc _ n -> n
669 FieldOcc _ n -> n
722− XFieldOcc x -> noExtCon x
670+ XFieldOcc _ -> notImplemented "XFieldOcc"
724 fields = located' (p_hsRecField . updName) <$> rec_flds
672 fields = located' (p_hsRecField . updName) <$> rec_flds
726 case rec_dotdot of
674 case rec_dotdot of
727 Just {} -> [txt ".."]
675 Just {} -> [txt ".."]
728 Nothing -> []
676 Nothing -> []
729− inci . braces N $
677+ inci . braces N . sitcc $
730− sep commaDel sitcc (fields <> dotdot)
678+ sep (comma >> breakpoint) sitcc (fields <> dotdot)
731 RecordUpd {..} -> do
679 RecordUpd {..} -> do
732 located rupd_expr p_hsExpr
680 located rupd_expr p_hsExpr
733− useRecordDot' <- useRecordDot
734− let mrs sp = case getLoc sp of
735− RealSrcSpan r -> Just r
738− ((1 +) . srcSpanEndCol <$> mrs rupd_expr)
739− == (srcSpanStartCol <$> mrs (head rupd_flds))
740− unless (useRecordDot' && isPluginForm) breakpoint
681+ breakpoint
741 let updName f =
682 let updName f =
742− (f :: HsRecUpdField GhcPs)
683+ f
743 { hsRecFieldLbl = case unLoc $ hsRecFieldLbl f of
684 { hsRecFieldLbl = case unLoc $ hsRecFieldLbl f of
744 Ambiguous _ n -> n
685 Ambiguous _ n -> n
745 Unambiguous _ n -> n
686 Unambiguous _ n -> n
746− XAmbiguousFieldOcc x -> noExtCon x
687+ XAmbiguousFieldOcc _ -> notImplemented "XAmbiguousFieldOcc"
748− inci . braces N $
689+ inci . braces N . sitcc $
750− commaDel
691+ (comma >> breakpoint)
751 (sitcc . located' (p_hsRecField . updName))
692 (sitcc . located' (p_hsRecField . updName))
752 rupd_flds
693 rupd_flds
753− ExprWithTySig NoExtField x HsWC {hswc_body = HsIB {..}} -> sitcc $ do
694+ ExprWithTySig NoExt x HsWC {hswc_body = HsIB {..}} -> sitcc $ do
754 located x p_hsExpr
695 located x p_hsExpr
757 breakpoint
698 breakpoint
758 inci $ located hsib_body p_hsType
699 inci $ located hsib_body p_hsType
759− ExprWithTySig NoExtField _ HsWC {hswc_body = XHsImplicitBndrs x} -> noExtCon x
700+ ExprWithTySig NoExt _ HsWC {hswc_body = XHsImplicitBndrs {}} ->
701+ notImplemented "XHsImplicitBndrs"
760− ExprWithTySig NoExtField _ (XHsWildCardBndrs x) -> noExtCon x
702+ ExprWithTySig NoExt _ XHsWildCardBndrs {} -> notImplemented "XHsWildCardBndrs"
761− ArithSeq NoExtField _ x ->
703+ ArithSeq NoExt _ x ->
762 case x of
704 case x of
763− From from -> brackets s $ do
705+ From from -> brackets s . sitcc $ do
764 located from p_hsExpr
706 located from p_hsExpr
765 breakpoint
707 breakpoint
767− FromThen from next -> brackets s $ do
709+ FromThen from next -> brackets s . sitcc $ do
768− sep commaDel (located' p_hsExpr) [from, next]
710+ sitcc $ sep (comma >> breakpoint) (located' p_hsExpr) [from, next]
769 breakpoint
711 breakpoint
771− FromTo from to -> brackets s $ do
713+ FromTo from to -> brackets s . sitcc $ do
772 located from p_hsExpr
714 located from p_hsExpr
773 breakpoint
715 breakpoint
776 located to p_hsExpr
718 located to p_hsExpr
777− FromThenTo from next to -> brackets s $ do
719+ FromThenTo from next to -> brackets s . sitcc $ do
778− sep commaDel (located' p_hsExpr) [from, next]
720+ sitcc $ sep (comma >> breakpoint) (located' p_hsExpr) [from, next]
779 breakpoint
721 breakpoint
782 located to p_hsExpr
724 located to p_hsExpr
783− HsSCC NoExtField _ name x -> do
725+ HsSCC NoExt _ name x -> do
784 txt "{-# SCC "
726 txt "{-# SCC "
785 atom name
727 atom name
786 txt " #-}"
728 txt " #-}"
787 breakpoint
729 breakpoint
788 located x p_hsExpr
730 located x p_hsExpr
789− HsCoreAnn NoExtField _ value x -> do
731+ HsCoreAnn NoExt _ value x -> do
790 txt "{-# CORE "
732 txt "{-# CORE "
791 atom value
733 atom value
792 txt " #-}"
734 txt " #-}"
793 breakpoint
735 breakpoint
794 located x p_hsExpr
736 located x p_hsExpr
795− HsBracket NoExtField x -> p_hsBracket x
737+ HsBracket NoExt x -> p_hsBracket x
796 HsRnBracketOut {} -> notImplemented "HsRnBracketOut"
738 HsRnBracketOut {} -> notImplemented "HsRnBracketOut"
797 HsTcBracketOut {} -> notImplemented "HsTcBracketOut"
739 HsTcBracketOut {} -> notImplemented "HsTcBracketOut"
798− HsSpliceE NoExtField splice -> p_hsSplice splice
740+ HsSpliceE NoExt splice -> p_hsSplice splice
799− HsProc NoExtField p e -> do
741+ HsProc NoExt p e -> do
800 txt "proc"
742 txt "proc"
801− located p $ \x -> do
743+ locatedPat p $ \x -> do
802 breakpoint
744 breakpoint
803 inci (p_pat x)
745 inci (p_pat x)
804 breakpoint
746 breakpoint
@@ -809,11 +751,31 @@ p_hsExpr' s = \case
809 txt "static"
751 txt "static"
810 breakpoint
752 breakpoint
811 inci (located e p_hsExpr)
753 inci (located e p_hsExpr)
754+ HsArrApp NoExt body input arrType cond ->
755+ p_hsCmd (HsCmdArrApp NoExt body input arrType cond)
756+ HsArrForm NoExt form mfixity cmds ->
757+ p_hsCmd (HsCmdArrForm NoExt form Prefix mfixity cmds)
812 HsTick {} -> notImplemented "HsTick"
758 HsTick {} -> notImplemented "HsTick"
813 HsBinTick {} -> notImplemented "HsBinTick"
759 HsBinTick {} -> notImplemented "HsBinTick"
814 HsTickPragma {} -> notImplemented "HsTickPragma"
760 HsTickPragma {} -> notImplemented "HsTickPragma"
761+ -- These four constructs should never appear in correct programs.
762+ -- See: https://github.com/tweag/ormolu/issues/343
763+ EWildPat NoExt -> txt "_"
764+ EAsPat NoExt n p -> do
768+ EViewPat NoExt p e -> do
773+ inci (located e p_hsExpr)
774+ ELazyPat NoExt p -> do
815 HsWrap {} -> notImplemented "HsWrap"
777 HsWrap {} -> notImplemented "HsWrap"
816− XExpr x -> noExtCon x
778+ XExpr {} -> notImplemented "XExpr"
818p_patSynBind :: PatSynBind GhcPs GhcPs -> R ()
780p_patSynBind :: PatSynBind GhcPs GhcPs -> R ()
819p_patSynBind PSB {..} = do
781p_patSynBind PSB {..} = do
@@ -823,15 +785,15 @@ p_patSynBind PSB {..} = do
823 Unidirectional -> do
785 Unidirectional -> do
825 breakpoint
787 breakpoint
826− located psb_def p_pat
788+ p_pat psb_def
827 ImplicitBidirectional -> do
789 ImplicitBidirectional -> do
829 breakpoint
791 breakpoint
830− located psb_def p_pat
792+ p_pat psb_def
831 ExplicitBidirectional mgroup -> do
793 ExplicitBidirectional mgroup -> do
833 breakpoint
795 breakpoint
834− located psb_def p_pat
796+ p_pat psb_def
836 txt "where"
798 txt "where"
@@ -852,8 +814,8 @@ p_patSynBind PSB {..} = do
852 inci $ do
814 inci $ do
853 switchLayout (getLoc . recordPatSynPatVar <$> xs) $ do
815 switchLayout (getLoc . recordPatSynPatVar <$> xs) $ do
854 unless (null xs) breakpoint
816 unless (null xs) breakpoint
855− braces N $
817+ braces N . sitcc $
856− sep commaDel (p_rdrName . recordPatSynPatVar) xs
818+ sep (comma >> breakpoint) (p_rdrName . recordPatSynPatVar) xs
858 InfixCon l r -> do
820 InfixCon l r -> do
859 switchLayout [getLoc l, getLoc r] $ do
821 switchLayout [getLoc l, getLoc r] $ do
@@ -865,7 +827,7 @@ p_patSynBind PSB {..} = do
866 p_rdrName r
828 p_rdrName r
868−p_patSynBind (XPatSynBind x) = noExtCon x
830+p_patSynBind (XPatSynBind NoExt) = notImplemented "XPatSynBind"
871 Data body =>
833 Data body =>
@@ -876,7 +838,7 @@ p_case ::
876 -- | Expression
838 -- | Expression
877 LHsExpr GhcPs ->
839 LHsExpr GhcPs ->
878 -- | Match group
840 -- | Match group
879− MatchGroup GhcPs (Located body) ->
841+ (MatchGroup GhcPs (Located body)) ->
881p_case placer render e mgroup = do
843p_case placer render e mgroup = do
882 txt "case"
844 txt "case"
@@ -907,12 +869,10 @@ p_if placer render if' then' else' = do
907 breakpoint
869 breakpoint
908 inci $ do
870 inci $ do
909 txt "then"
871 txt "then"
911 located then' $ \x ->
872 located then' $ \x ->
912 placeHanging (placer x) (render x)
873 placeHanging (placer x) (render x)
913 breakpoint
874 breakpoint
914 txt "else"
875 txt "else"
916 located else' $ \x ->
876 located else' $ \x ->
917 placeHanging (placer x) (render x)
877 placeHanging (placer x) (render x)
@@ -934,77 +894,77 @@ p_let render localBinds e = sitcc $ do
935p_pat :: Pat GhcPs -> R ()
895p_pat :: Pat GhcPs -> R ()
936p_pat = \case
896p_pat = \case
897+ -- Note: starting from GHC 8.8, 'LPat' == 'Pat'. Located 'Pat's are always
898+ -- constructed with the 'XPat' constructor, containing a @Located Pat@.
899+ XPat pat -> located pat p_pat
937− WildPat NoExtField -> txt "_"
900+ WildPat NoExt -> txt "_"
938− VarPat NoExtField name -> p_rdrName name
901+ VarPat NoExt name -> p_rdrName name
939− LazyPat NoExtField pat -> do
902+ LazyPat NoExt pat -> do
941− located pat p_pat
904+ p_pat pat
942− AsPat NoExtField name pat -> do
905+ AsPat NoExt name pat -> do
943 p_rdrName name
906 p_rdrName name
945− located pat p_pat
908+ p_pat pat
946− ParPat NoExtField pat ->
909+ ParPat NoExt pat ->
947− located pat (parens S . p_pat)
910+ locatedPat pat (parens S . p_pat)
948− BangPat NoExtField pat -> do
911+ BangPat NoExt pat -> do
950− located pat p_pat
913+ p_pat pat
951− ListPat NoExtField pats ->
914+ ListPat NoExt pats ->
952− brackets S $ sep commaDel (located' p_pat) pats
915+ brackets S . sitcc $ sep (comma >> breakpoint) p_pat pats
953− TuplePat NoExtField pats boxing -> do
916+ TuplePat NoExt pats boxing -> do
954− let parens' =
917+ let f =
955 case boxing of
918 case boxing of
956 Boxed -> parens S
919 Boxed -> parens S
957 Unboxed -> parensHash S
920 Unboxed -> parensHash S
958− parens' $ sep commaDel (sitcc . located' p_pat) pats
921+ f . sitcc $ sep (comma >> breakpoint) (sitcc . p_pat) pats
959− SumPat NoExtField pat tag arity ->
922+ SumPat NoExt pat tag arity ->
960− p_unboxedSum S tag arity (located pat p_pat)
923+ p_unboxedSum S tag arity (p_pat pat)
961 ConPatIn pat details ->
924 ConPatIn pat details ->
962 case details of
925 case details of
963 PrefixCon xs -> sitcc $ do
926 PrefixCon xs -> sitcc $ do
964 p_rdrName pat
927 p_rdrName pat
965 unless (null xs) $ do
928 unless (null xs) $ do
966 breakpoint
929 breakpoint
967− inci . sitcc $ sep breakpoint (sitcc . located' p_pat) xs
930+ inci . sitcc $ sep breakpoint (sitcc . p_pat) xs
968 RecCon (HsRecFields fields dotdot) -> do
931 RecCon (HsRecFields fields dotdot) -> do
969 p_rdrName pat
932 p_rdrName pat
970 breakpoint
933 breakpoint
971 let f = \case
934 let f = \case
972 Nothing -> txt ".."
935 Nothing -> txt ".."
973 Just x -> located x p_pat_hsRecField
936 Just x -> located x p_pat_hsRecField
974− inci . braces N . sep commaDel f $
937+ inci . braces N . sitcc . sep (comma >> breakpoint) f $
975 case dotdot of
938 case dotdot of
976 Nothing -> Just <$> fields
939 Nothing -> Just <$> fields
977− Just (L _ n) -> (Just <$> take n fields) ++ [Nothing]
940+ Just n -> (Just <$> take n fields) ++ [Nothing]
978− InfixCon l r -> do
941+ InfixCon x y -> do
979− switchLayout [getLoc l, getLoc r] $ do
942+ p_pat x
980− located l p_pat
943+ space
981− breakpoint
944+ p_rdrName pat
982− inci $ do
945+ breakpoint
983− p_rdrName pat
946+ inci (p_pat y)
986 ConPatOut {} -> notImplemented "ConPatOut" -- presumably created by renamer?
947 ConPatOut {} -> notImplemented "ConPatOut" -- presumably created by renamer?
987− ViewPat NoExtField expr pat -> sitcc $ do
948+ ViewPat NoExt expr pat -> sitcc $ do
988 located expr p_hsExpr
949 located expr p_hsExpr
991 breakpoint
952 breakpoint
992− inci (located pat p_pat)
953+ inci (p_pat pat)
993− SplicePat NoExtField splice -> p_hsSplice splice
954+ SplicePat NoExt splice -> p_hsSplice splice
994− LitPat NoExtField p -> atom p
955+ LitPat NoExt p -> atom p
995− NPat NoExtField v _ _ -> located v (atom . ol_val)
956+ NPat NoExt v _ _ -> located v (atom . ol_val)
996− NPlusKPat NoExtField n k _ _ _ -> sitcc $ do
957+ NPlusKPat NoExt n k _ _ _ -> sitcc $ do
997 p_rdrName n
958 p_rdrName n
998 breakpoint
959 breakpoint
999 inci $ do
960 inci $ do
1002 located k (atom . ol_val)
963 located k (atom . ol_val)
1003− SigPat NoExtField pat hswc -> do
964+ SigPat NoExt pat hswc -> do
1004− located pat p_pat
965+ p_pat pat
1005 p_typeAscription hswc
966 p_typeAscription hswc
1006 CoPat {} -> notImplemented "CoPat" -- apparently created at some later stage
967 CoPat {} -> notImplemented "CoPat" -- apparently created at some later stage
1007− XPat x -> noExtCon x
1009p_pat_hsRecField :: HsRecField' (FieldOcc GhcPs) (LPat GhcPs) -> R ()
969p_pat_hsRecField :: HsRecField' (FieldOcc GhcPs) (LPat GhcPs) -> R ()
1010p_pat_hsRecField HsRecField {..} = do
970p_pat_hsRecField HsRecField {..} = do
@@ -1012,40 +972,42 @@ p_pat_hsRecField HsRecField {..} = do
1012 p_rdrName (rdrNameFieldOcc x)
972 p_rdrName (rdrNameFieldOcc x)
1013 unless hsRecPun $ do
973 unless hsRecPun $ do
1016 breakpoint
976 breakpoint
1017− inci (located hsRecFieldArg p_pat)
977+ inci (p_pat hsRecFieldArg)
1019p_unboxedSum :: BracketStyle -> ConTag -> Arity -> R () -> R ()
979p_unboxedSum :: BracketStyle -> ConTag -> Arity -> R () -> R ()
1020p_unboxedSum s tag arity m = do
980p_unboxedSum s tag arity m = do
1021 let before = tag - 1
981 let before = tag - 1
1022 after = arity - before - 1
982 after = arity - before - 1
1023 args = replicate before Nothing <> [Just m] <> replicate after Nothing
983 args = replicate before Nothing <> [Just m] <> replicate after Nothing
1024− f x =
984+ f (x, i) = do
985+ let isFirst = i == 0
986+ isLast = i == arity - 1
1025 case x :: Maybe (R ()) of
987 case x :: Maybe (R ()) of
1026 Nothing ->
988 Nothing ->
1027− space
989+ unless (isFirst || isLast) space
1028 Just m' -> do
990 Just m' -> do
1029− space
991+ unless isFirst space
1031− space
993+ unless isLast space
1032− parensHash s $ sep (txt "|") f args
994+ parensHash s $ sep (txt "|") f (zip args [0 ..])
1034p_hsSplice :: HsSplice GhcPs -> R ()
996p_hsSplice :: HsSplice GhcPs -> R ()
1035p_hsSplice = \case
997p_hsSplice = \case
1036− HsTypedSplice NoExtField deco _ expr -> p_hsSpliceTH True expr deco
998+ HsTypedSplice NoExt deco _ expr -> p_hsSpliceTH True expr deco
1037− HsUntypedSplice NoExtField deco _ expr -> p_hsSpliceTH False expr deco
999+ HsUntypedSplice NoExt deco _ expr -> p_hsSpliceTH False expr deco
1038− HsQuasiQuote NoExtField _ quoterName srcSpan str -> do
1000+ HsQuasiQuote NoExt _ quoterName srcSpan str -> do
1040 p_rdrName (L srcSpan quoterName)
1002 p_rdrName (L srcSpan quoterName)
1042− -- QuasiQuoters often rely on precise custom strings. We cannot do any
1004+ -- NOTE QuasiQuoters often rely on precise custom strings. We cannot do
1043− -- formatting here without potentially breaking someone's code.
1005+ -- any formatting here without potentially breaking someone's code.
1044 atom str
1006 atom str
1045 txt "|]"
1007 txt "|]"
1046 HsSpliced {} -> notImplemented "HsSpliced"
1008 HsSpliced {} -> notImplemented "HsSpliced"
1047 HsSplicedT {} -> notImplemented "HsSplicedT"
1009 HsSplicedT {} -> notImplemented "HsSplicedT"
1048− XSplice x -> noExtCon x
1010+ XSplice {} -> notImplemented "XSplice"
1050p_hsSpliceTH ::
1012p_hsSpliceTH ::
1051 -- | Typed splice?
1013 -- | Typed splice?
@@ -1069,17 +1031,17 @@ p_hsSpliceTH isTyped expr = \case
1070p_hsBracket :: HsBracket GhcPs -> R ()
1032p_hsBracket :: HsBracket GhcPs -> R ()
1071p_hsBracket = \case
1033p_hsBracket = \case
1072− ExpBr NoExtField expr -> do
1034+ ExpBr NoExt expr -> do
1073 anns <- getEnclosingAnns
1035 anns <- getEnclosingAnns
1074 let name = case anns of
1036 let name = case anns of
1075 AnnOpenEQ : _ -> ""
1037 AnnOpenEQ : _ -> ""
1076 _ -> "e"
1038 _ -> "e"
1077 quote name (located expr p_hsExpr)
1039 quote name (located expr p_hsExpr)
1078− PatBr NoExtField pat -> located pat (quote "p" . p_pat)
1040+ PatBr NoExt pat -> quote "p" (p_pat pat)
1079− DecBrL NoExtField decls -> quote "d" (p_hsDecls Free decls)
1041+ DecBrL NoExt decls -> quote "d" (p_hsDecls Free decls)
1080− DecBrG NoExtField _ -> notImplemented "DecBrG" -- result of renamer
1042+ DecBrG NoExt _ -> notImplemented "DecBrG" -- result of renamer
1081− TypBr NoExtField ty -> quote "t" (located ty p_hsType)
1043+ TypBr NoExt ty -> quote "t" (located ty p_hsType)
1082− VarBr NoExtField isSingleQuote name -> do
1044+ VarBr NoExt isSingleQuote name -> do
1083 txt (bool "''" "'" isSingleQuote)
1045 txt (bool "''" "'" isSingleQuote)
1084 -- HACK As you can see we use 'noLoc' here to be able to pass name into
1046 -- HACK As you can see we use 'noLoc' here to be able to pass name into
1085 -- 'p_rdrName' since the latter expects a "located" thing. The problem
1047 -- 'p_rdrName' since the latter expects a "located" thing. The problem
@@ -1094,13 +1056,13 @@ p_hsBracket = \case
1094 && not (doesNotNeedExtraParens name)
1056 && not (doesNotNeedExtraParens name)
1095 wrapper = if isOperator then parens N else id
1057 wrapper = if isOperator then parens N else id
1096 wrapper $ p_rdrName (noLoc name)
1058 wrapper $ p_rdrName (noLoc name)
1097− TExpBr NoExtField expr -> do
1059+ TExpBr NoExt expr -> do
1098 txt "[||"
1060 txt "[||"
1099 breakpoint'
1061 breakpoint'
1100 located expr p_hsExpr
1062 located expr p_hsExpr
1101 breakpoint'
1063 breakpoint'
1102 txt "||]"
1064 txt "||]"
1103− XBracket x -> noExtCon x
1065+ XBracket {} -> notImplemented "XBracket"
1105 quote :: Text -> R () -> R ()
1067 quote :: Text -> R () -> R ()
1106 quote name body = do
1068 quote name body = do
@@ -1179,9 +1141,9 @@ liftAppend (x : xs) [] = x : xs
1179liftAppend (x : xs) (y : ys) = x <> y : liftAppend xs ys
1141liftAppend (x : xs) (y : ys) = x <> y : liftAppend xs ys
1181getGRHSSpan :: GRHS GhcPs (Located body) -> SrcSpan
1143getGRHSSpan :: GRHS GhcPs (Located body) -> SrcSpan
1182−getGRHSSpan (GRHS NoExtField guards body) =
1144+getGRHSSpan (GRHS NoExt guards body) =
1183 combineSrcSpans' $ getLoc body :| map getLoc guards
1145 combineSrcSpans' $ getLoc body :| map getLoc guards
1184−getGRHSSpan (XGRHS x) = noExtCon x
1146+getGRHSSpan (XGRHS NoExt) = notImplemented "XGRHS"
1186-- | Place a thing that may have a hanging form. This function handles how
1148-- | Place a thing that may have a hanging form. This function handles how
1187-- to separate it from preceding expressions and whether to bump indentation
1149-- to separate it from preceding expressions and whether to bump indentation
@@ -1202,77 +1164,82 @@ blockPlacement ::
1202 (body -> Placement) ->
1164 (body -> Placement) ->
1203 [LGRHS GhcPs (Located body)] ->
1165 [LGRHS GhcPs (Located body)] ->
1204 Placement
1166 Placement
1205−blockPlacement placer [L _ (GRHS NoExtField _ (L _ x))] = placer x
1167+blockPlacement placer [(L _ (GRHS NoExt _ (L _ x)))] = placer x
1206blockPlacement _ _ = Normal
1168blockPlacement _ _ = Normal
1208-- | Check if given command has a hanging form.
1170-- | Check if given command has a hanging form.
1209cmdPlacement :: HsCmd GhcPs -> Placement
1171cmdPlacement :: HsCmd GhcPs -> Placement
1210cmdPlacement = \case
1172cmdPlacement = \case
1211− HsCmdLam NoExtField _ -> Hanging
1173+ HsCmdLam NoExt _ -> Hanging
1212− HsCmdCase NoExtField _ _ -> Hanging
1174+ HsCmdCase NoExt _ _ -> Hanging
1213− HsCmdDo NoExtField _ -> Hanging
1175+ HsCmdDo NoExt _ -> Hanging
1214 _ -> Normal
1176 _ -> Normal
1216cmdTopPlacement :: HsCmdTop GhcPs -> Placement
1178cmdTopPlacement :: HsCmdTop GhcPs -> Placement
1217cmdTopPlacement = \case
1179cmdTopPlacement = \case
1218− HsCmdTop NoExtField (L _ x) -> cmdPlacement x
1180+ HsCmdTop NoExt (L _ x) -> cmdPlacement x
1219− XCmdTop x -> noExtCon x
1181+ XCmdTop {} -> notImplemented "XCmdTop"
1221-- | Check if given expression has a hanging form.
1183-- | Check if given expression has a hanging form.
1222exprPlacement :: HsExpr GhcPs -> Placement
1184exprPlacement :: HsExpr GhcPs -> Placement
1223exprPlacement = \case
1185exprPlacement = \case
1224 -- Only hang lambdas with single line parameter lists
1186 -- Only hang lambdas with single line parameter lists
1225− HsLam NoExtField mg -> case mg of
1187+ HsLam NoExt mg -> case mg of
1226− MG _ (L _ [L _ (Match NoExtField _ (x : xs) _)]) _
1188+ MG _ (L _ [L _ (Match NoExt _ (x : xs) _)]) _
1227 | isOneLineSpan (combineSrcSpans' $ fmap getLoc (x :| xs)) ->
1189 | isOneLineSpan (combineSrcSpans' $ fmap getLoc (x :| xs)) ->
1229 _ -> Normal
1191 _ -> Normal
1230− HsLamCase NoExtField _ -> Hanging
1192+ HsLamCase NoExt _ -> Hanging
1231− HsCase NoExtField _ _ -> Hanging
1193+ HsCase NoExt _ _ -> Hanging
1232− HsDo NoExtField DoExpr _ -> Hanging
1194+ HsDo NoExt DoExpr _ -> Hanging
1233− HsDo NoExtField MDoExpr _ -> Hanging
1195+ HsDo NoExt MDoExpr _ -> Hanging
1234− OpApp NoExtField _ op y ->
1196+ RecordCon NoExt _ _ -> Hanging
1235− case (fmap getOpNameStr . getOpName . unLoc) op of
1197+ -- If the rightmost expression in an operator chain is hanging, make the
1236− Just "$" -> exprPlacement (unLoc y)
1198+ -- whole block hanging; so that we can use the common @f = foo $ do@
1237− _ -> Normal
1199+ -- style.
1238− HsApp NoExtField _ y -> exprPlacement (unLoc y)
1200+ OpApp NoExt _ _ y -> exprPlacement (unLoc y)
1239− HsProc NoExtField p _ ->
1201+ -- Same thing for function applications (usually with -XBlockArguments)
1240− -- Indentation breaks if pattern is longer than one line and left
1202+ HsApp NoExt _ y -> exprPlacement (unLoc y)
1241− -- hanging. Consequently, only apply hanging when it is safe.
1203+ HsProc NoExt p _ ->
1242− if isOneLineSpan (getLoc p)
1204+ -- https://gitlab.haskell.org/ghc/ghc/issues/17330
1243− then Hanging
1205+ let loc = case p of
1244− else Normal
1206+ XPat pat -> getLoc pat
1207+ _ -> error "exprPlacement: HsProc: Pat does not contain a location"
1208+ in -- Indentation breaks if pattern is longer than one line and left
1209+ -- hanging. Consequently, only apply hanging when it is safe.
1210+ if isOneLineSpan loc
1245 _ -> Normal
1213 _ -> Normal
1247withGuards :: [LGRHS GhcPs (Located body)] -> Bool
1215withGuards :: [LGRHS GhcPs (Located body)] -> Bool
1248withGuards = any (checkOne . unLoc)
1216withGuards = any (checkOne . unLoc)
1250 checkOne :: GRHS GhcPs (Located body) -> Bool
1218 checkOne :: GRHS GhcPs (Located body) -> Bool
1251− checkOne (GRHS NoExtField [] _) = False
1219+ checkOne (GRHS NoExt [] _) = False
1252 checkOne _ = True
1220 checkOne _ = True
1254exprOpTree :: LHsExpr GhcPs -> OpTree (LHsExpr GhcPs) (LHsExpr GhcPs)
1222exprOpTree :: LHsExpr GhcPs -> OpTree (LHsExpr GhcPs) (LHsExpr GhcPs)
1255−exprOpTree (L _ (OpApp NoExtField x op y)) = OpBranch (exprOpTree x) op (exprOpTree y)
1223+exprOpTree (L _ (OpApp NoExt x op y)) = OpBranch (exprOpTree x) op (exprOpTree y)
1256exprOpTree n = OpNode n
1224exprOpTree n = OpNode n
1258getOpName :: HsExpr GhcPs -> Maybe RdrName
1226getOpName :: HsExpr GhcPs -> Maybe RdrName
1259getOpName = \case
1227getOpName = \case
1260− HsVar NoExtField (L _ a) -> Just a
1228+ HsVar NoExt (L _ a) -> Just a
1261 _ -> Nothing
1229 _ -> Nothing
1263−getOpNameStr :: RdrName -> String
1264−getOpNameStr = occNameString . rdrNameOcc
1266p_exprOpTree ::
1231p_exprOpTree ::
1232+ -- | Can use special handling of dollar?
1267 -- | Bracket style to use
1234 -- | Bracket style to use
1268 BracketStyle ->
1235 BracketStyle ->
1269 OpTree (LHsExpr GhcPs) (LHsExpr GhcPs) ->
1236 OpTree (LHsExpr GhcPs) (LHsExpr GhcPs) ->
1271−p_exprOpTree s (OpNode x) = located x (p_hsExpr' s)
1238+p_exprOpTree _ s (OpNode x) = located x (p_hsExpr' s)
1272−p_exprOpTree s (OpBranch x op y) = do
1239+p_exprOpTree isDollarSpecial s (OpBranch x op y) = do
1273− -- If the beginning of the first argument and the second argument are on
1240+ -- NOTE If the beginning of the first argument and the second argument
1274− -- the same line, and the second argument has a hanging form, use hanging
1241+ -- are on the same line, and the second argument has a hanging form, use
1275− -- placement.
1242+ -- hanging placement.
1276 let placement =
1243 let placement =
1277 if isOneLineSpan
1244 if isOneLineSpan
1278 (mkSrcSpan (srcSpanStart (opTreeLoc x)) (srcSpanStart (opTreeLoc y)))
1245 (mkSrcSpan (srcSpanStart (opTreeLoc x)) (srcSpanStart (opTreeLoc y)))
@@ -1280,10 +1247,8 @@ p_exprOpTree s (OpBranch x op y) = do
1280 OpNode (L _ n) -> exprPlacement n
1247 OpNode (L _ n) -> exprPlacement n
1281 _ -> Normal
1248 _ -> Normal
1282 else Normal
1249 else Normal
1283− -- Distinguish holes used in infix notation.
1284− -- eg. '1 _foo 2' and '1 `_foo` 2'
1285 opWrapper = case unLoc op of
1250 opWrapper = case unLoc op of
1286− HsUnboundVar NoExtField _ -> backticks
1251+ EWildPat NoExt -> backticks
1288 layout <- getLayout
1253 layout <- getLayout
1289 let ub = case layout of
1254 let ub = case layout of
@@ -1291,67 +1256,27 @@ p_exprOpTree s (OpBranch x op y) = do
1291 MultiLine -> case placement of
1256 MultiLine -> case placement of
1292 Hanging -> useBraces
1257 Hanging -> useBraces
1293 Normal -> dontUseBraces
1258 Normal -> dontUseBraces
1294− opNameStr = (fmap getOpNameStr . getOpName . unLoc) op
1259+ gotDollar = case getOpName (unLoc op) of
1295− gotDollar = opNameStr == Just "$"
1260+ Just rname -> mkVarOcc "$" == (rdrNameOcc rname)
1296− gotColon = opNameStr == Just ":"
1261+ _ -> False
1297− gotRecordDot = isRecordDot (unLoc op) (opTreeLoc y)
1299 switchLayout [opTreeLoc x] $
1263 switchLayout [opTreeLoc x] $
1300− p_exprOpTree s x
1264+ p_exprOpTree (not gotDollar) s x
1301− p_op = located op (opWrapper . p_hsExpr)
1265+ let p_op = located op (opWrapper . p_hsExpr)
1302− p_y = switchLayout [opTreeLoc y] (p_exprOpTree N y)
1266+ p_y = switchLayout [opTreeLoc y] (p_exprOpTree True N y)
1303− isSection = case (opTreeLoc x, getLoc op) of
1267+ if isDollarSpecial && gotDollar && placement == Normal && isOneLineSpan (opTreeLoc x)
1304− (RealSrcSpan treeSpan, RealSrcSpan opSpan) ->
1268+ then do
1305− srcSpanEndCol treeSpan /= srcSpanStartCol opSpan
1269+ useBraces lhs
1306− _ -> False
1270+ space
1307− isDoBlock = \case
1271+ p_op
1308− OpNode (L _ HsDo {}) -> True
1272+ breakpoint
1309− _ -> False
1273+ inci p_y
1310− useRecordDot' <- useRecordDot
1274+ else do
1312− | gotColon -> do
1276+ placeHanging placement $ do
1322− inciIf (isDoBlock y) p_y
1324− && isOneLineSpan (opTreeLoc x)
1325− && placement == Normal -> do
1331− | useRecordDot' && gotRecordDot -> do
1333− when isSection space
1338− placeHanging placement $ do
1343−-- | Return 'True' if given expression is a record-dot operator expression.
1345− -- | Operator expression
1347− -- | Span of the expression on the right-hand side of the operator
1350−isRecordDot op (RealSrcSpan ySpan) = case op of
1351− HsVar NoExtField (L (RealSrcSpan opSpan) opName) ->
1352− (getOpNameStr opName == ".") && (srcSpanEndCol opSpan == srcSpanStartCol ySpan)
1354−isRecordDot _ _ = False
1356-- | Get annotations for the enclosing element.
1281-- | Get annotations for the enclosing element.
1357getEnclosingAnns :: R [AnnKeywordId]
1282getEnclosingAnns :: R [AnnKeywordId]