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hls-alternate-number-format-plugin (empty) → 1.0.1.0

raw patch · 37 files changed

+1105/−0 lines, 37 filesdep +QuickCheckdep +aesondep +base

Dependencies added: QuickCheck, aeson, base, containers, filepath, ghc-boot-th, ghcide, hie-compat, hls-alternate-number-format-plugin, hls-graph, hls-plugin-api, hls-test-utils, lens, lsp, mtl, regex-tdfa, syb, tasty-quickcheck, text, unordered-containers

Files

+ LICENSE view
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+ README.md view
@@ -0,0 +1,40 @@+# Alternate Number Format Plugin++The alternate number format plugin provides alternative formatting for Numeric Literals in source code.+These can be any numeric literal such as `123`, `0x45` or any of the other numeric formats.+The plugin is context aware and will provide suggestions based on currently active GHC extensions.++## Setup++The plugin requires no extra setup to work. Simply place your cursor on top of a literal and invoke the `codeAction` command for your editor.++## Demo++![Alternate format suggestions](HLSAll.gif)++### Currently Supported GHC Extensions:+- `BinaryLiterals`+- `HexFloatLiterals`+- `NumDecimalLiterals`++## Design++The plugin is relatively simple, it traverses a files source contents using the GHC API. As it encounters Literals (of the type `HsExpr` with the constructor of either `HsLit` or `HsOverLit`), it will construct an internal `Literal` datatype that has additional information for use to generate suggestions.+Currently, the traversal is done in the file, `Literal.hs`, using the package [SYB](https://hackage.haskell.org/package/syb) for most of the heavy lifting.++The plugin extends on top of SYB as the traversal done by basic combinators is not perfect. For whatever reason, when starting at the root `ParsedModule` the SYB traversal ignores Pattern Binds (`LPat GhcPs`). As a result, a combinator was created to match on TWO separate underlying types to dispatch on.++To generate suggestions, the plugin leverages the `Numeric` package which provides a multitude of conversion functions to and from strings/numerics. The only slight change is the addition of extra work when using `NumDecimals` extension. The plugin will attempt to generate 3 choices for the user (this choice is not given for `Fractional` numerics).++### Known Quirks+- Currently (and probably inefficiently), a Set is used as general accumulator for all Literals being captured. This is because again, through the intricacies of using SYB, we somehow will traverse Source Text multiple times and collect duplicate literals.++- In the Test Suite, we are required to be explicit in where our `codeActions` will occur. Otherwise, a simple call to `getAllCodeActions` will not work, for whatever reason, there is not enough time to generate the code actions.++- `PrimLiterals` are currently ignored. GHC API does not attach Source Text to Primitive Literal Nodes. As such these are ignored in the plugin.++- Similarly, anything that produces a bad Source Span (i.e. can't be easily replaced by an edit) is ignored as well.++## Changelog+### 1.0.0.0+- First Release
+ hls-alternate-number-format-plugin.cabal view
@@ -0,0 +1,70 @@+cabal-version:      2.4+name:               hls-alternate-number-format-plugin+version:            1.0.1.0+synopsis:           Provide Alternate Number Formats plugin for Haskell Language Server+description:+  Please see the README on GitHub at <https://github.com/haskell/haskell-language-server#readme>++license:            Apache-2.0+license-file:       LICENSE+author:             Nick Suchecki+maintainer:         nicksuchecki@gmail.com+category:           Development+build-type:         Simple+extra-source-files:+  LICENSE+  README.md+  test/testdata/*.hs+  test/testdata/*.yaml++library+  exposed-modules:  Ide.Plugin.AlternateNumberFormat, Ide.Plugin.Conversion+  other-modules:    Ide.Plugin.Literals+  hs-source-dirs:   src+  build-depends:+      aeson+    , base                 >=4.12 && < 5+    , containers+    , ghcide               ^>=1.6+    , ghc-boot-th+    , hls-graph+    , hls-plugin-api       ^>=1.3+    , hie-compat+    , lens+    , lsp+    , mtl+    , regex-tdfa+    , syb+    , text+    , unordered-containers++  default-language: Haskell2010+  default-extensions:+    LambdaCase+    NamedFieldPuns+    OverloadedStrings+    RecordWildCards++test-suite tests+  type:             exitcode-stdio-1.0+  default-language: Haskell2010+  hs-source-dirs:   test+  other-modules: Properties.Conversion+  main-is:          Main.hs+  ghc-options:      -threaded -rtsopts -with-rtsopts=-N -fno-ignore-asserts+  build-depends:+    , base                 >=4.12 && < 5+    , filepath+    , hls-alternate-number-format-plugin+    , hls-test-utils       ^>=1.2+    , lsp+    , QuickCheck+    , regex-tdfa+    , tasty-quickcheck+    , text++  default-extensions:+    LambdaCase+    NamedFieldPuns+    OverloadedStrings+    RecordWildCards
+ src/Ide/Plugin/AlternateNumberFormat.hs view
@@ -0,0 +1,125 @@+{-# LANGUAGE DataKinds     #-}+{-# LANGUAGE DeriveGeneric #-}+{-# LANGUAGE TypeFamilies  #-}+{-# LANGUAGE TypeOperators #-}+module Ide.Plugin.AlternateNumberFormat (descriptor) where++import           Control.Lens                    ((^.))+import           Control.Monad.Except            (ExceptT, MonadIO, liftIO)+import qualified Data.HashMap.Strict             as HashMap+import           Data.Text                       (Text)+import qualified Data.Text                       as T+import           Development.IDE                 (GetParsedModule (GetParsedModule),+                                                  IdeState, RuleResult, Rules,+                                                  define, ideLogger,+                                                  realSrcSpanToRange, runAction,+                                                  use)+import           Development.IDE.GHC.Compat      hiding (getSrcSpan)+import           Development.IDE.GHC.Compat.Util (toList)+import           Development.IDE.Graph.Classes   (Hashable, NFData)+import           Development.IDE.Types.Logger    as Logger+import           GHC.Generics                    (Generic)+import           Ide.Plugin.Conversion           (FormatType, alternateFormat,+                                                  toFormatTypes)+import           Ide.Plugin.Literals             (Literal (..), collectLiterals,+                                                  getSrcSpan, getSrcText)+import           Ide.PluginUtils                 (handleMaybe, handleMaybeM,+                                                  response)+import           Ide.Types+import           Language.LSP.Types+import           Language.LSP.Types.Lens         (uri)++descriptor :: PluginId -> PluginDescriptor IdeState+descriptor plId = (defaultPluginDescriptor plId)+    { pluginHandlers = mkPluginHandler STextDocumentCodeAction codeActionHandler+    , pluginRules = collectLiteralsRule+    }++data CollectLiterals = CollectLiterals+                     deriving (Show, Eq, Generic)++instance Hashable CollectLiterals+instance NFData CollectLiterals++type instance RuleResult CollectLiterals = CollectLiteralsResult++data CollectLiteralsResult = CLR+    { literals    :: [Literal]+    , formatTypes :: [FormatType]+    } deriving (Generic)++instance Show CollectLiteralsResult where+    show _ = "<CollectLiteralResult>"++instance NFData CollectLiteralsResult++collectLiteralsRule :: Rules ()+collectLiteralsRule = define $ \CollectLiterals nfp -> do+    pm <- use GetParsedModule nfp+    -- get the current extensions active and transform them into FormatTypes+    let fmts = getFormatTypes <$> pm+        -- collect all the literals for a file+        lits = collectLiterals . pm_parsed_source <$> pm+    pure ([], CLR <$> lits <*> fmts)+    where+        getFormatTypes = toFormatTypes . toList . extensionFlags . ms_hspp_opts . pm_mod_summary++codeActionHandler :: PluginMethodHandler IdeState 'TextDocumentCodeAction+codeActionHandler state _ (CodeActionParams _ _ docId currRange _) = response $ do+    nfp <- getNormalizedFilePath docId+    CLR{..} <- requestLiterals state nfp+        -- remove any invalid literals (see validTarget comment)+    let litsInRange = filter inCurrentRange literals+        -- generate alternateFormats and zip with the literal that generated the alternates+        literalPairs = map (\lit -> (lit, alternateFormat formatTypes lit)) litsInRange+        -- make a code action for every literal and its' alternates (then flatten the result)+        actions = concatMap (\(lit, alts) -> map (mkCodeAction nfp lit) alts) literalPairs++    logIO state $ "Literals: " <> show literals++    pure $ List actions+    where+        inCurrentRange :: Literal -> Bool+        inCurrentRange lit = let srcSpan = getSrcSpan lit+                              in currRange `contains` srcSpan++        mkCodeAction :: NormalizedFilePath -> Literal -> Text -> Command |? CodeAction+        mkCodeAction nfp lit alt = InR CodeAction {+            _title = "Convert " <> getSrcText lit <> " into " <> alt+            , _kind = Just $ CodeActionUnknown "quickfix.literals.style"+            , _diagnostics = Nothing+            , _isPreferred = Nothing+            , _disabled = Nothing+            , _edit = Just $ mkWorkspaceEdit nfp lit alt+            , _command = Nothing+            , _xdata = Nothing+            }++        mkWorkspaceEdit :: NormalizedFilePath -> Literal -> Text -> WorkspaceEdit+        mkWorkspaceEdit nfp lit alt = WorkspaceEdit changes Nothing Nothing+            where+                txtEdit = TextEdit (realSrcSpanToRange $ getSrcSpan lit) alt+                changes = Just $ HashMap.fromList [( filePathToUri $ fromNormalizedFilePath nfp, List [txtEdit])]++-- from HaddockComments.hs+contains :: Range -> RealSrcSpan -> Bool+contains Range {_start, _end} x = isInsideRealSrcSpan _start x || isInsideRealSrcSpan _end x++isInsideRealSrcSpan :: Position -> RealSrcSpan -> Bool+p `isInsideRealSrcSpan` r = let (Range sp ep) = realSrcSpanToRange r in sp <= p && p <= ep++getNormalizedFilePath :: Monad m => TextDocumentIdentifier -> ExceptT String m NormalizedFilePath+getNormalizedFilePath docId = handleMaybe "Error: converting to NormalizedFilePath"+        $ uriToNormalizedFilePath+        $ toNormalizedUri (docId ^. uri)++requestLiterals :: MonadIO m => IdeState -> NormalizedFilePath -> ExceptT String m CollectLiteralsResult+requestLiterals state = handleMaybeM "Error: Could not Collect Literals"+                . liftIO+                . runAction "AlternateNumberFormat.CollectLiterals" state+                . use CollectLiterals+++logIO :: (MonadIO m, Show a) => IdeState -> a -> m ()+logIO state = liftIO . Logger.logDebug (ideLogger state) . T.pack . show+
+ src/Ide/Plugin/Conversion.hs view
@@ -0,0 +1,201 @@+{-# LANGUAGE DeriveGeneric #-}+module Ide.Plugin.Conversion (+    alternateFormat+    , hexRegex+    , hexFloatRegex+    , binaryRegex+    , octalRegex+    , decimalRegex+    , numDecimalRegex+    , matchLineRegex+    , toFormatTypes+    , FormatType+    , generateNumDecimal+    , toNumDecimal+    , toBinary+    , toOctal+    , toHex+    , toHexFloat+    , toFloatDecimal+    , toFloatExpDecimal+) where++import           Data.Char                     (toUpper)+import           Data.List                     (delete, dropWhileEnd)+import           Data.Maybe                    (mapMaybe)+import           Data.Ratio                    (denominator, numerator)+import           Data.Text                     (Text)+import qualified Data.Text                     as T+import           Development.IDE.Graph.Classes (NFData)+import           GHC.Generics                  (Generic)+import           GHC.LanguageExtensions.Type   (Extension (..))+import           GHC.Show                      (intToDigit)+import           Ide.Plugin.Literals           (Literal (..), getSrcText)+import           Numeric+import           Text.Regex.TDFA               ((=~))++data FormatType = IntFormat IntFormatType+                | FracFormat FracFormatType+                | AnyFormat AnyFormatType+                | NoFormat+                deriving (Show, Eq, Generic)++instance NFData FormatType++data IntFormatType = HexFormat+                   | OctalFormat+                   | BinaryFormat+                   | NumDecimalFormat+                   deriving (Show, Eq, Generic)++instance NFData IntFormatType++data FracFormatType = HexFloatFormat+                    | ExponentFormat+                    deriving (Show, Eq, Generic)++instance NFData FracFormatType++data AnyFormatType = DecimalFormat+                   deriving (Show, Eq, Generic)++instance NFData AnyFormatType++-- | Generate alternate formats for a single Literal based on FormatType's given.+alternateFormat :: [FormatType] -> Literal -> [Text]+alternateFormat fmts lit = case lit of+  IntLiteral _ _ val  -> concatMap (alternateIntFormat val) (removeCurrentFormat lit fmts)+  FracLiteral _ _  val -> if denominator val == 1 -- floats that can be integers we can represent as ints+      then concatMap (alternateIntFormat (numerator val)) (removeCurrentFormat lit fmts)+      else concatMap (alternateFracFormat val) (removeCurrentFormat lit fmts)++alternateIntFormat :: Integer -> FormatType -> [Text]+alternateIntFormat val fmt = case fmt of+  IntFormat ift           -> case ift of+    HexFormat        -> [T.pack $ toHex val]+    OctalFormat      -> [T.pack $ toOctal val]+    BinaryFormat     -> [T.pack $ toBinary val]+    NumDecimalFormat -> generateNumDecimal val  -- this is the only reason we return List of Text :/+  AnyFormat DecimalFormat -> [T.pack $ toDecimal val]+  _                       -> []++alternateFracFormat :: Rational -> FormatType -> [Text]+alternateFracFormat val fmt = case fmt of+  AnyFormat DecimalFormat   -> [T.pack $ toFloatDecimal (fromRational val)]+  FracFormat ExponentFormat -> [T.pack $ toFloatExpDecimal (fromRational val)]+  FracFormat HexFloatFormat -> [T.pack $ toHexFloat (fromRational val)]+  _                         -> []++removeCurrentFormat :: Literal -> [FormatType] -> [FormatType]+removeCurrentFormat lit fmts = let srcText = getSrcText lit+                                in foldl (flip delete) fmts (sourceToFormatType srcText)++-- | Regex to match a Haskell Hex Literal+hexRegex :: Text+hexRegex = "0[xX][a-fA-F0-9]+"++-- | Regex to match a Haskell Hex Float Literal+hexFloatRegex :: Text+hexFloatRegex = "0[xX][a-fA-F0-9]+(\\.)?[a-fA-F0-9]*(p[+-]?[0-9]+)?"++-- | Regex to match a Haskell Binary Literal+binaryRegex :: Text+binaryRegex = "0[bB][0|1]+"++-- | Regex to match a Haskell Octal Literal+octalRegex :: Text+octalRegex = "0[oO][0-8]+"++-- | Regex to match a Haskell Decimal Literal (no decimal points)+decimalRegex :: Text+decimalRegex = "[0-9]+(\\.[0-9]+)?"++-- | Regex to match a Haskell Literal with an explicit exponent+numDecimalRegex :: Text+numDecimalRegex = "[0-9]+\\.[0-9]+[eE][+-]?[0-9]+"++-- we want to be explicit in our matches+-- so we need to match the beginning/end of the source text+-- | Wraps a Regex with a beginning ("^") and end ("$") token+matchLineRegex :: Text -> Text+matchLineRegex regex = "^" <> regex <> "$"++sourceToFormatType :: Text -> [FormatType]+sourceToFormatType srcText+    | srcText =~ matchLineRegex hexRegex = [IntFormat HexFormat]+    | srcText =~ matchLineRegex hexFloatRegex = [FracFormat HexFloatFormat]+    | srcText =~ matchLineRegex octalRegex = [IntFormat OctalFormat]+    | srcText =~ matchLineRegex binaryRegex = [IntFormat BinaryFormat]+    -- can either be a NumDecimal or just a regular Fractional with an exponent+    -- otherwise we wouldn't need to return a list+    | srcText =~ matchLineRegex numDecimalRegex  = [IntFormat NumDecimalFormat, FracFormat ExponentFormat]+    -- just assume we are in base 10 with no decimals+    | otherwise = [AnyFormat DecimalFormat]++-- | Translate a list of Extensions into Format Types (plus a base set of Formats)+toFormatTypes :: [Extension] -> [FormatType]+toFormatTypes =  (<>) baseFormatTypes . mapMaybe (`lookup` numericPairs)+    where+        baseFormatTypes = [IntFormat HexFormat, IntFormat OctalFormat, FracFormat ExponentFormat, AnyFormat DecimalFormat]++-- current list of Numeric related extensions+-- LexicalNegation --- 9.0.1 > --- superset of NegativeLiterals+numericPairs :: [(Extension, FormatType)]+numericPairs = [(NumericUnderscores, NoFormat), (NegativeLiterals, NoFormat)] <> intPairs <> fracPairs++intPairs :: [(Extension, FormatType)]+intPairs = [(BinaryLiterals, IntFormat BinaryFormat), (NumDecimals, IntFormat NumDecimalFormat)]++fracPairs :: [(Extension, FormatType)]+fracPairs = [(HexFloatLiterals, FracFormat HexFloatFormat)]++-- Generate up to 3 possible choices where:+-- dropWhile (\d -> val `div` d) > 1000) implies we want at MOST 3 digits to left of decimal+-- takeWhile (val >) implies we want to stop once we start to get numbers like: 0.1e[N]+-- take 3 implies we want at most three choices which will center around the format:+--    - 500.123e4+--    - 50.0123e5+--    - 5e.00123e6+-- NOTE: showEFloat would also work, but results in only one option+generateNumDecimal :: Integer -> [Text]+generateNumDecimal val = map (toNumDecimal val) $ take 3 $ takeWhile (val >= ) $ dropWhile (\d -> (val `div` d) > 1000) divisors+    where+        divisors = 10 : map (*10) divisors++toNumDecimal :: Integer -> Integer -> Text+toNumDecimal val divisor = let (q, r) = val `quotRem` divisor+                               numExponent = length $ filter (== '0') $ show divisor+                               -- remove unnecessary trailing zeroes from output+                               r' = dropWhileEnd (== '0') $ show r+                               -- but make sure there are still digits left!!!+                               r'' = if null r' then "0" else r'+                               in T.pack $ show q <> "." <> r'' <> "e" <> show numExponent++toBase :: (Num a, Ord a) => (a -> ShowS) -> String -> a -> String+toBase conv header n+  | n < 0 = '-' : header <> map toUpper (conv (abs n) "")+  | otherwise = header <> map toUpper (conv n "")++toOctal :: (Integral a, Show a) => a -> String+toOctal = toBase showOct "0o"++toDecimal :: Integral a => a -> String+toDecimal = toBase showInt ""++toBinary :: (Integral a, Show a) => a -> String+toBinary = toBase showBin "0b"+  where+    -- this is not defined in versions of Base < 4.16-ish+    showBin = showIntAtBase 2 intToDigit++toHex :: (Integral a, Show a) => a  -> String+toHex = toBase showHex "0x"++toFloatDecimal :: RealFloat a => a -> String+toFloatDecimal val = showFFloat Nothing val ""++toFloatExpDecimal :: RealFloat a => a -> String+toFloatExpDecimal val = showEFloat Nothing val ""++toHexFloat :: RealFloat a => a -> String+toHexFloat val = showHFloat val ""
+ src/Ide/Plugin/Literals.hs view
@@ -0,0 +1,120 @@+{-# LANGUAGE DeriveDataTypeable #-}+{-# LANGUAGE DeriveGeneric      #-}+{-# LANGUAGE FlexibleInstances  #-}+{-# LANGUAGE RankNTypes         #-}+module Ide.Plugin.Literals (+    collectLiterals+    , Literal(..)+    , getSrcText+    , getSrcSpan+) where++import           Data.Maybe                    (maybeToList)+import           Data.Text                     (Text)+import qualified Data.Text                     as T+import           Development.IDE.GHC.Compat    hiding (getSrcSpan)+import           Development.IDE.GHC.Util      (unsafePrintSDoc)+import           Development.IDE.Graph.Classes (NFData (rnf))+import qualified GHC.Generics                  as GHC+import           Generics.SYB                  (Data, Typeable, everything,+                                                extQ)++-- data type to capture what type of literal we are dealing with+-- provides location and possibly source text (for OverLits) as well as it's value+-- we currently don't have any use for PrimLiterals. They never have source text so we always drop them+-- | Captures a Numeric Literals Location, Source Text, and Value.+data Literal = IntLiteral  RealSrcSpan Text Integer+             | FracLiteral RealSrcSpan Text Rational+             deriving (GHC.Generic, Show, Ord, Eq, Data)++instance NFData RealSrcSpan where+    rnf x = x `seq` ()++instance NFData Literal++-- | Return a Literal's Source representation+getSrcText :: Literal -> Text+getSrcText = \case+  IntLiteral _ txt _  -> txt+  FracLiteral _ txt _ -> txt++-- | Return a Literal's Real Source location+getSrcSpan :: Literal -> RealSrcSpan+getSrcSpan = \case+    IntLiteral ss _ _  -> ss+    FracLiteral ss _ _ -> ss++-- | Find all literals in a Parsed Source File+collectLiterals :: (Data ast, Typeable ast) => ast -> [Literal]+collectLiterals = everything (<>) (maybeToList . (const Nothing `extQ` getLiteral `extQ` getPattern))++-- | Translate from HsLit and HsOverLit Types to our Literal Type+getLiteral :: GenLocated SrcSpan (HsExpr GhcPs) -> Maybe Literal+getLiteral (L (UnhelpfulSpan _) _) = Nothing+getLiteral (L (RealSrcSpan sSpan _ ) expr) = case expr of+    HsLit _ lit         -> fromLit lit sSpan+    HsOverLit _ overLit -> fromOverLit overLit sSpan+    _                   -> Nothing++-- | Destructure Patterns to unwrap any Literals+getPattern :: GenLocated SrcSpan (Pat GhcPs) -> Maybe Literal+getPattern (L (UnhelpfulSpan _) _)       = Nothing+getPattern (L (RealSrcSpan patSpan _) pat) = case pat of+    LitPat _ lit -> case lit of+        HsInt _ val   -> fromIntegralLit patSpan val+        HsRat _ val _ -> fromFractionalLit patSpan val+        _             -> Nothing+    NPat _ (L (RealSrcSpan sSpan _) overLit) _ _ -> fromOverLit overLit sSpan+    NPlusKPat _ _ (L (RealSrcSpan sSpan _) overLit1) _ _ _ -> fromOverLit overLit1 sSpan+    _ -> Nothing++fromLit :: HsLit p -> RealSrcSpan -> Maybe Literal+fromLit lit sSpan = case lit of+        HsInt _ val   -> fromIntegralLit sSpan val+        HsRat _ val _ -> fromFractionalLit sSpan val+        _             -> Nothing++fromOverLit :: HsOverLit p -> RealSrcSpan -> Maybe Literal+fromOverLit OverLit{..} sSpan = case ol_val of+        HsIntegral il   -> fromIntegralLit sSpan il+        HsFractional fl -> fromFractionalLit sSpan fl+        _               -> Nothing+fromOverLit _ _ = Nothing++fromIntegralLit :: RealSrcSpan -> IntegralLit -> Maybe Literal+fromIntegralLit s IL{..} = fmap (\txt' -> IntLiteral s txt' il_value) (fromSourceText il_text)++fromFractionalLit  :: RealSrcSpan -> FractionalLit -> Maybe Literal+fromFractionalLit s FL{..} = fmap (\txt' -> FracLiteral s txt' fl_value) (fromSourceText fl_text)++fromSourceText :: SourceText -> Maybe Text+fromSourceText = \case+  SourceText s -> Just $ T.pack s+  NoSourceText -> Nothing++-- mostly for debugging purposes+literalToString :: HsLit p -> String+literalToString = \case+  HsChar _ c        -> "Char: " <> show c+  HsCharPrim _ c    -> "CharPrim: " <> show c+  HsString _ fs     -> "String: " <> show fs+  HsStringPrim _ bs -> "StringPrim: " <> show bs+  HsInt _ il        -> "Int: " <> show il+  HsIntPrim _ n     -> "IntPrim: " <> show n+  HsWordPrim _ n    -> "WordPrim: " <> show n+  HsInt64Prim _ n   -> "Int64Prim: " <> show n+  HsWord64Prim _ n  -> "Word64Prim: " <> show n+  HsInteger _ n ty  -> "Integer: " <> show n <> " Type: " <> tyToLiteral ty+  HsRat _ fl ty     -> "Rat: " <> show fl <> " Type: " <> tyToLiteral ty+  HsFloatPrim _ fl  -> "FloatPrim: " <> show fl+  HsDoublePrim _ fl -> "DoublePrim: " <>  show fl+  _                 -> "XHsLit"+  where+    tyToLiteral :: Type -> String+    tyToLiteral = unsafePrintSDoc .  ppr++overLitToString :: OverLitVal -> String+overLitToString = \case+     HsIntegral int -> case int of { IL{il_value} -> "IntegralOverLit: " <> show il_value}+     HsFractional frac -> case frac of { FL{fl_value} -> "RationalOverLit: " <> show fl_value}+     HsIsString _ str -> "HIsString: " <> show str
+ test/Main.hs view
@@ -0,0 +1,178 @@+{-# LANGUAGE NamedFieldPuns #-}+{-# LANGUAGE TypeOperators  #-}+{-# LANGUAGE ViewPatterns   #-}+module Main ( main ) where++import           Data.Either                      (rights)+import           Data.List                        (find)+import           Data.Text                        (Text)+import qualified Data.Text                        as T+import           Debug.Trace+import qualified Ide.Plugin.AlternateNumberFormat as AlternateNumberFormat+import qualified Ide.Plugin.Conversion            as Conversion+import           Language.LSP.Types               (toEither)+import           Language.LSP.Types.Lens          (kind)+import           Properties.Conversion            (conversions)+import           System.FilePath                  ((<.>), (</>))+import           Test.Hls+import           Text.Regex.TDFA                  ((=~))++main :: IO ()+main = defaultTestRunner test++alternateNumberFormatPlugin :: PluginDescriptor IdeState+alternateNumberFormatPlugin = AlternateNumberFormat.descriptor "alternateNumberFormat"+++-- NOTE: For whatever reason, this plugin does not play nice with creating Code Actions on time.+-- As a result tests will mostly pass if `import Prelude` is added at the top. We (mostly fendor) surmise this has something+-- to do with how+test :: TestTree+test = testGroup "alternateNumberFormat" [+    codeActionHex "TIntDtoH" 3 13+    , codeActionOctal "TIntDtoO" 3 13+    , codeActionBinary "TIntDtoB" 4 13+    , codeActionNumDecimal "TIntDtoND" 5 13+    , codeActionFracExp "TFracDtoE" 3 13+    , codeActionFloatHex "TFracDtoHF" 4 13+    , codeActionDecimal "TIntHtoD" 3 13+    , codeActionDecimal "TFracHFtoD" 4 13+    , codeActionProperties "TFindLiteralIntPattern" [(3, 25), (4,25)] $ \actions -> do+        liftIO $ length actions @?= 4+    , codeActionProperties "TFindLiteralIntCase" [(3, 29)] $ \actions -> do+        liftIO $ length actions @?= 2+    , codeActionProperties "TFindLiteralIntCase2" [(4, 21)] $ \actions -> do+        liftIO $ length actions @?= 2+    , codeActionProperties "TFindLiteralDoReturn" [(5, 10)] $ \actions -> do+        liftIO $ length actions @?= 2+    , codeActionProperties "TFindLiteralDoLet" [(5, 13), (6, 13)] $ \actions -> do+        liftIO $ length actions @?= 4+    , codeActionProperties "TFindLiteralList" [(3, 28)] $ \actions -> do+        liftIO $ length actions @?= 2+    , codeActionProperties "TExpectNoBinaryFormat" [(3, 12)] $ \actions -> do+        liftIO $ length actions @?= 2+        liftIO $ actions `doesNotContain` binaryRegex @? "Contains binary codeAction"+    , codeActionProperties "TExpectBinaryFormat" [(4, 10)] $ \actions -> do+        liftIO $ length actions @?= 3+        liftIO $ actions `contains` binaryRegex @? "Does not contain binary codeAction"+    , codeActionProperties "TExpectNoHexFloatFormat" [(3, 14)] $ \actions -> do+        liftIO $ length actions @?= 1+        liftIO $ actions `doesNotContain` hexFloatRegex @? "Contains hex float codeAction"+    , codeActionProperties "TExpectHexFloatFormat" [(4, 12)] $ \actions -> do+        liftIO $ length actions @?= 2+        liftIO $ actions `contains` hexFloatRegex @? "Does not contain hex float codeAction"+    , codeActionProperties "TExpectNoNumDecimalFormat" [(3, 16)] $ \actions -> do+        liftIO $ length actions @?= 2+        liftIO $ actions `doesNotContain` numDecimalRegex @? "Contains numDecimal codeAction"+    , codeActionProperties "TExpectNumDecimalFormat" [(4, 14)] $ \actions -> do+        liftIO $ length actions @?= 5+        liftIO $ actions `contains` numDecimalRegex @? "Contains numDecimal codeAction"+    , conversions+    ]++codeActionProperties :: TestName -> [(Int, Int)] -> ([CodeAction] -> Session ()) -> TestTree+codeActionProperties fp locs assertions = testCase fp $ do+    runSessionWithServer alternateNumberFormatPlugin testDataDir $ do+        openDoc (fp <.> ".hs") "haskell" >>= codeActionsFromLocs >>= findAlternateNumberActions >>= assertions+    where+        -- similar to codeActionTest+        codeActionsFromLocs doc = concat <$> mapM (getCodeActions doc . uncurry pointRange) locs++findAlternateNumberActions :: [Command |? CodeAction] -> Session [CodeAction]+findAlternateNumberActions = pure . filter isAlternateNumberCodeAction . rights . map toEither+    where+        isAlternateNumberCodeAction CodeAction{_kind} = case _kind of+          Nothing -> False+          Just kind -> case kind of+            CodeActionUnknown txt -> txt == "quickfix.literals.style"+            _                     -> False++-- most helpers derived from explicit-imports-plugin Main Test file++testDataDir :: FilePath+testDataDir = "test" </> "testdata"++goldenAlternateFormat :: FilePath -> (TextDocumentIdentifier -> Session ()) -> TestTree+goldenAlternateFormat fp = goldenWithHaskellDoc alternateNumberFormatPlugin (fp <> " (golden)") testDataDir fp "expected" "hs"++codeActionTest :: (Maybe Text -> Bool) -> FilePath -> Int -> Int -> TestTree+codeActionTest filter' fp line col = goldenAlternateFormat fp $ \doc -> do+  actions <- getCodeActions doc (pointRange line col)+  -- can't generate code actions?+  case find (filter' . codeActionTitle) actions of+    Just (InR x) -> executeCodeAction x+    _            -> liftIO $ assertFailure "Unable to find CodeAction"++codeActionDecimal :: FilePath -> Int -> Int -> TestTree+codeActionDecimal = codeActionTest isDecimalCodeAction++codeActionHex :: FilePath -> Int -> Int -> TestTree+codeActionHex = codeActionTest isHexCodeAction++codeActionOctal :: FilePath -> Int -> Int -> TestTree+codeActionOctal = codeActionTest isOctalCodeAction++codeActionBinary :: FilePath -> Int -> Int -> TestTree+codeActionBinary = codeActionTest isBinaryCodeAction++codeActionNumDecimal :: FilePath -> Int -> Int -> TestTree+codeActionNumDecimal = codeActionTest isNumDecimalCodeAction++codeActionFracExp :: FilePath -> Int -> Int -> TestTree+codeActionFracExp = codeActionTest isNumDecimalCodeAction++codeActionFloatHex :: FilePath -> Int -> Int -> TestTree+codeActionFloatHex = codeActionTest isHexFloatCodeAction++codeActionTitle :: (Command |? CodeAction) -> Maybe Text+codeActionTitle (InR CodeAction {_title}) = Just _title+codeActionTitle _                         = Nothing++codeActionTitle' :: CodeAction -> Text+codeActionTitle' CodeAction{_title} = _title++pointRange :: Int -> Int -> Range+pointRange+  (subtract 1 -> fromIntegral -> line)+  (subtract 1 -> fromIntegral -> col) =+    Range (Position line col) (Position line $ col + 1)++contains :: [CodeAction] -> Text -> Bool+acts `contains` regex = any (\action -> codeActionTitle' action =~ regex) acts++doesNotContain :: [CodeAction] -> Text -> Bool+acts `doesNotContain` regex = not $ acts `contains` regex++convertPrefix, intoInfix, hexRegex, hexFloatRegex, binaryRegex, octalRegex, numDecimalRegex, decimalRegex :: Text+convertPrefix = "Convert (" <> T.intercalate "|" [Conversion.hexRegex, Conversion.hexFloatRegex, Conversion.binaryRegex, Conversion.octalRegex, Conversion.numDecimalRegex, Conversion.decimalRegex] <> ")"+intoInfix = " into "+hexRegex = intoInfix <> Conversion.hexRegex+hexFloatRegex = intoInfix <> Conversion.hexFloatRegex+binaryRegex = intoInfix <> Conversion.binaryRegex+octalRegex = intoInfix <> Conversion.octalRegex+numDecimalRegex = intoInfix <> Conversion.numDecimalRegex+decimalRegex = intoInfix <> Conversion.decimalRegex++isCodeAction :: Text -> Maybe Text -> Bool+isCodeAction userRegex (Just txt) = txt =~ Conversion.matchLineRegex (convertPrefix <> userRegex)+isCodeAction _ _                  = False++isHexCodeAction :: Maybe Text -> Bool+isHexCodeAction = isCodeAction hexRegex++isHexFloatCodeAction :: Maybe Text -> Bool+isHexFloatCodeAction = isCodeAction hexFloatRegex++isBinaryCodeAction :: Maybe Text -> Bool+isBinaryCodeAction = isCodeAction binaryRegex++isOctalCodeAction :: Maybe Text -> Bool+isOctalCodeAction = isCodeAction octalRegex++-- This can match EITHER an integer as NumDecimal extension or a Fractional+-- as in 1.23e-3 (so anything with an exponent really)+isNumDecimalCodeAction :: Maybe Text -> Bool+isNumDecimalCodeAction = isCodeAction numDecimalRegex++isDecimalCodeAction :: Maybe Text -> Bool+isDecimalCodeAction = isCodeAction decimalRegex
+ test/Properties/Conversion.hs view
@@ -0,0 +1,38 @@+{-# LANGUAGE TypeApplications #-}+module Properties.Conversion where++import           Ide.Plugin.Conversion+import           Test.Hls              (TestTree, testGroup)+import           Test.Tasty.QuickCheck (testProperty)+import           Text.Regex.TDFA       ((=~))++conversions :: TestTree+conversions = testGroup "Conversions" $ map (uncurry testProperty) [("Match NumDecimal", prop_regexMatchesNumDecimal)+    , ("Match Hex", prop_regexMatchesHex)+    , ("Match Octal", prop_regexMatchesOctal)+    , ("Match Binary", prop_regexMatchesBinary)+    ] <> map (uncurry testProperty) [("Match HexFloat", prop_regexMatchesHexFloat @Double)+    , ("Match FloatDecimal", prop_regexMatchesFloatDecimal)+    , ("Match FloatExpDecimal", prop_regexMatchesFloatExpDecimal)+    ]++prop_regexMatchesNumDecimal :: Integer -> Bool+prop_regexMatchesNumDecimal = all (=~ numDecimalRegex) . generateNumDecimal++prop_regexMatchesHex :: (Integral a, Show a) => a -> Bool+prop_regexMatchesHex = (=~ hexRegex ) . toHex++prop_regexMatchesOctal :: (Integral a, Show a) => a -> Bool+prop_regexMatchesOctal = (=~ octalRegex) . toOctal++prop_regexMatchesBinary :: (Integral a, Show a) => a -> Bool+prop_regexMatchesBinary = (=~ binaryRegex) . toBinary++prop_regexMatchesHexFloat :: (RealFloat a) =>  a -> Bool+prop_regexMatchesHexFloat = (=~ hexFloatRegex) . toHexFloat++prop_regexMatchesFloatDecimal :: (RealFloat a) =>  a -> Bool+prop_regexMatchesFloatDecimal = (=~ decimalRegex ) . toFloatDecimal++prop_regexMatchesFloatExpDecimal :: (RealFloat a) =>  a -> Bool+prop_regexMatchesFloatExpDecimal = (=~ numDecimalRegex ) . toFloatExpDecimal
+ test/testdata/TExpectBinaryFormat.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE BinaryLiterals #-}+module TExpectBinaryFormat where++binary = 459
+ test/testdata/TExpectHexFloatFormat.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE HexFloatLiterals #-}+module TExpectHexFloatFormat where++hexFloat = 459.123
+ test/testdata/TExpectNoBinaryFormat.hs view
@@ -0,0 +1,3 @@+module TExpectNoBinaryFormat where++noBinary = 459
+ test/testdata/TExpectNoHexFloatFormat.hs view
@@ -0,0 +1,3 @@+module TExpectNoHexFloatFormat where++noHexFloat = 459.123
+ test/testdata/TExpectNoNumDecimalFormat.hs view
@@ -0,0 +1,3 @@+module TExpectNoNumDecimalFormat where++noNumDecimal = 499999
+ test/testdata/TExpectNumDecimalFormat.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE NumDecimals #-}+module TExpectNumDecimalFormat where++numDecimal = 499999
+ test/testdata/TFindLiteralDoLet.hs view
@@ -0,0 +1,7 @@+module TFindLiteralDoLet where++doLet :: IO ()+doLet = do+    let x = 199+        y = 144+    pure ()
+ test/testdata/TFindLiteralDoReturn.hs view
@@ -0,0 +1,5 @@+module TFindLiteralDoReturn where++doReturn :: IO Integer+doReturn = do+    pure 54
+ test/testdata/TFindLiteralIntCase.hs view
@@ -0,0 +1,4 @@+module TFindLiteralIntCase where++caseExpression x = case x + 34 of+                    _ -> "testing if we find a literal in the case statement"
+ test/testdata/TFindLiteralIntCase2.hs view
@@ -0,0 +1,5 @@+module TFindLiteralIntCase where++caseExpression x = case x of+                    57 -> "testing to find literals in matching cases"+                    _  -> ""
+ test/testdata/TFindLiteralIntPattern.hs view
@@ -0,0 +1,5 @@+module TFindLiteralIntPattern where++patternMatchingFunction 1 = "one"+patternMatchingFunction 2 = "two"+patternMatchingFunction _ = "the rest of the numbers"
+ test/testdata/TFindLiteralList.hs view
@@ -0,0 +1,3 @@+module TFindLiteralList where++listTest = [reverse $ show 57]
+ test/testdata/TFracDtoE.expected.hs view
@@ -0,0 +1,3 @@+module TFracDtoE where++convertMe = 1.2345e2
+ test/testdata/TFracDtoE.hs view
@@ -0,0 +1,3 @@+module TFracDtoE where++convertMe = 123.45
+ test/testdata/TFracDtoHF.expected.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE HexFloatLiterals #-}+module TFracDtoHF where++convertMe = 0x1.edccccccccccdp6
+ test/testdata/TFracDtoHF.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE HexFloatLiterals #-}+module TFracDtoHF where++convertMe = 123.45
+ test/testdata/TFracHFtoD.expected.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE HexFloatLiterals #-}+module TFracDtoHF where++convertMe = 123.45
+ test/testdata/TFracHFtoD.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE HexFloatLiterals #-}+module TFracDtoHF where++convertMe = 0x1.edccccccccccdp6
+ test/testdata/TIntDtoB.expected.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE BinaryLiterals #-}+module TIntDtoB where++convertMe = 0b1100
+ test/testdata/TIntDtoB.hs view
@@ -0,0 +1,4 @@+{-# LANGUAGE BinaryLiterals #-}+module TIntDtoB where++convertMe = 12
+ test/testdata/TIntDtoH.expected.hs view
@@ -0,0 +1,3 @@+module TIntDtoH where++convertMe = 0xC
+ test/testdata/TIntDtoH.hs view
@@ -0,0 +1,3 @@+module TIntDtoH where++convertMe = 12
+ test/testdata/TIntDtoND.expected.hs view
@@ -0,0 +1,5 @@+{-# LANGUAGE NumDecimals #-}+module TIntDtoND where++convertMe :: Integer+convertMe = 125.345e3
+ test/testdata/TIntDtoND.hs view
@@ -0,0 +1,5 @@+{-# LANGUAGE NumDecimals #-}+module TIntDtoND where++convertMe :: Integer+convertMe = 125345
+ test/testdata/TIntDtoO.expected.hs view
@@ -0,0 +1,3 @@+module TIntDtoO where++convertMe = 0o14
+ test/testdata/TIntDtoO.hs view
@@ -0,0 +1,3 @@+module TIntDtoO where++convertMe = 12
+ test/testdata/TIntHtoD.expected.hs view
@@ -0,0 +1,3 @@+module TIntDtoH where++convertMe = 12
+ test/testdata/TIntHtoD.hs view
@@ -0,0 +1,3 @@+module TIntDtoH where++convertMe = 0xC
+ test/testdata/hie.yaml view
@@ -0,0 +1,24 @@+cradle:+  direct:+    arguments:+      - -i+      - -i.+      - TIntDtoH+      - TIntDtoB+      - TIntDtoO+      - TIntDtoND+      - TFracDtoE+      - TFracDtoHF+      - TIntHtoD+      - TFracHFtoD+      - TFindLiteralIntPattern+      - TFindLiteralIntCase+      - TFindLiteralIntCase2+      - TFindLiteralDoReturn+      - TFindLiteralDoLet+      - TFindLiteralList+      - TExpectNoBinaryFormat+      - TExpectBinaryFormat+      - TExpectNoHexFloatFormat+      - TExpectHexFloatFormat+      - -Wall