smuggler (empty) → 0.0.0
raw patch · 22 files changed
+802/−0 lines, 22 filesdep +basedep +bytestringdep +containerssetup-changed
Dependencies added: base, bytestring, containers, directory, filepath, ghc, ghc-exactprint, hash-store, smuggler, unordered-containers
Files
- CHANGELOG.md +13/−0
- LICENSE +373/−0
- README.md +26/−0
- Setup.hs +2/−0
- app/Main.hs +12/−0
- smuggler.cabal +104/−0
- src/Smuggler/Anns.hs +16/−0
- src/Smuggler/Loc.hs +21/−0
- src/Smuggler/Parser.hs +21/−0
- src/Smuggler/Plugin.hs +125/−0
- test/Test.hs +33/−0
- test/Test/BoolBoolUnused.hs +3/−0
- test/Test/BoolBoolUsed.hs +5/−0
- test/Test/BoolPartlyUsedFirst.hs +5/−0
- test/Test/BoolPartlyUsedLast.hs +5/−0
- test/Test/Dummy.hs +4/−0
- test/Test/ImportEmpty.hs +3/−0
- test/Test/MultilineUnused.hs +10/−0
- test/Test/TypeConstructorUnused.hs +5/−0
- test/Test/TypeConstructorUsed.hs +5/−0
- test/Test/TypeUnused.hs +5/−0
- test/Test/TypeUsed.hs +6/−0
+ CHANGELOG.md view
@@ -0,0 +1,13 @@+Change log+==========++smuggler uses [PVP Versioning][1].+The change log is available [on GitHub][2].++0.0.0+=====+* Initially created.++[1]: https://pvp.haskell.org+[2]: https://github.com/kowainik/smuggler/releases+
+ LICENSE view
@@ -0,0 +1,373 @@+Mozilla Public License Version 2.0+==================================++1. Definitions+--------------++1.1. "Contributor"+ means each individual or legal entity that creates, contributes to+ the creation of, or owns Covered Software.++1.2. "Contributor Version"+ means the combination of the Contributions of others (if any) used+ by a Contributor and that particular Contributor's Contribution.++1.3. "Contribution"+ means Covered Software of a particular Contributor.++1.4. "Covered Software"+ means Source Code Form to which the initial Contributor has attached+ the notice in Exhibit A, the Executable Form of such Source Code+ Form, and Modifications of such Source Code Form, in each case+ including portions thereof.++1.5. "Incompatible With Secondary Licenses"+ means++ (a) that the initial Contributor has attached the notice described+ in Exhibit B to the Covered Software; or++ (b) that the Covered Software was made available under the terms of+ version 1.1 or earlier of the License, but not also under the+ terms of a Secondary License.++1.6. "Executable Form"+ means any form of the work other than Source Code Form.++1.7. "Larger Work"+ means a work that combines Covered Software with other material, in+ a separate file or files, that is not Covered Software.++1.8. "License"+ means this document.++1.9. "Licensable"+ means having the right to grant, to the maximum extent possible,+ whether at the time of the initial grant or subsequently, any and+ all of the rights conveyed by this License.++1.10. "Modifications"+ means any of the following:++ (a) any file in Source Code Form that results from an addition to,+ deletion from, or modification of the contents of Covered+ Software; or++ (b) any new file in Source Code Form that contains any Covered+ Software.++1.11. "Patent Claims" of a Contributor+ means any patent claim(s), including without limitation, method,+ process, and apparatus claims, in any patent Licensable by such+ Contributor that would be infringed, but for the grant of the+ License, by the making, using, selling, offering for sale, having+ made, import, or transfer of either its Contributions or its+ Contributor Version.++1.12. "Secondary License"+ means either the GNU General Public License, Version 2.0, the GNU+ Lesser General Public License, Version 2.1, the GNU Affero General+ Public License, Version 3.0, or any later versions of those+ licenses.++1.13. "Source Code Form"+ means the form of the work preferred for making modifications.++1.14. "You" (or "Your")+ means an individual or a legal entity exercising rights under this+ License. For legal entities, "You" includes any entity that+ controls, is controlled by, or is under common control with You. For+ purposes of this definition, "control" means (a) the power, direct+ or indirect, to cause the direction or management of such entity,+ whether by contract or otherwise, or (b) ownership of more than+ fifty percent (50%) of the outstanding shares or beneficial+ ownership of such entity.++2. License Grants and Conditions+--------------------------------++2.1. Grants++Each Contributor hereby grants You a world-wide, royalty-free,+non-exclusive license:++(a) under intellectual property rights (other than patent or trademark)+ Licensable by such Contributor to use, reproduce, make available,+ modify, display, perform, distribute, and otherwise exploit its+ Contributions, either on an unmodified basis, with Modifications, or+ as part of a Larger Work; and++(b) under Patent Claims of such Contributor to make, use, sell, offer+ for sale, have made, import, and otherwise transfer either its+ Contributions or its Contributor Version.++2.2. Effective Date++The licenses granted in Section 2.1 with respect to any Contribution+become effective for each Contribution on the date the Contributor first+distributes such Contribution.++2.3. Limitations on Grant Scope++The licenses granted in this Section 2 are the only rights granted under+this License. No additional rights or licenses will be implied from the+distribution or licensing of Covered Software under this License.+Notwithstanding Section 2.1(b) above, no patent license is granted by a+Contributor:++(a) for any code that a Contributor has removed from Covered Software;+ or++(b) for infringements caused by: (i) Your and any other third party's+ modifications of Covered Software, or (ii) the combination of its+ Contributions with other software (except as part of its Contributor+ Version); or++(c) under Patent Claims infringed by Covered Software in the absence of+ its Contributions.++This License does not grant any rights in the trademarks, service marks,+or logos of any Contributor (except as may be necessary to comply with+the notice requirements in Section 3.4).++2.4. Subsequent Licenses++No Contributor makes additional grants as a result of Your choice to+distribute the Covered Software under a subsequent version of this+License (see Section 10.2) or under the terms of a Secondary License (if+permitted under the terms of Section 3.3).++2.5. Representation++Each Contributor represents that the Contributor believes its+Contributions are its original creation(s) or it has sufficient rights+to grant the rights to its Contributions conveyed by this License.++2.6. Fair Use++This License is not intended to limit any rights You have under+applicable copyright doctrines of fair use, fair dealing, or other+equivalents.++2.7. Conditions++Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted+in Section 2.1.++3. Responsibilities+-------------------++3.1. Distribution of Source Form++All distribution of Covered Software in Source Code Form, including any+Modifications that You create or to which You contribute, must be under+the terms of this License. You must inform recipients that the Source+Code Form of the Covered Software is governed by the terms of this+License, and how they can obtain a copy of this License. You may not+attempt to alter or restrict the recipients' rights in the Source Code+Form.++3.2. Distribution of Executable Form++If You distribute Covered Software in Executable Form then:++(a) such Covered Software must also be made available in Source Code+ Form, as described in Section 3.1, and You must inform recipients of+ the Executable Form how they can obtain a copy of such Source Code+ Form by reasonable means in a timely manner, at a charge no more+ than the cost of distribution to the recipient; and++(b) You may distribute such Executable Form under the terms of this+ License, or sublicense it under different terms, provided that the+ license for the Executable Form does not attempt to limit or alter+ the recipients' rights in the Source Code Form under this License.++3.3. Distribution of a Larger Work++You may create and distribute a Larger Work under terms of Your choice,+provided that You also comply with the requirements of this License for+the Covered Software. If the Larger Work is a combination of Covered+Software with a work governed by one or more Secondary Licenses, and the+Covered Software is not Incompatible With Secondary Licenses, this+License permits You to additionally distribute such Covered Software+under the terms of such Secondary License(s), so that the recipient of+the Larger Work may, at their option, further distribute the Covered+Software under the terms of either this License or such Secondary+License(s).++3.4. Notices++You may not remove or alter the substance of any license notices+(including copyright notices, patent notices, disclaimers of warranty,+or limitations of liability) contained within the Source Code Form of+the Covered Software, except that You may alter any license notices to+the extent required to remedy known factual inaccuracies.++3.5. Application of Additional Terms++You may choose to offer, and to charge a fee for, warranty, support,+indemnity or liability obligations to one or more recipients of Covered+Software. However, You may do so only on Your own behalf, and not on+behalf of any Contributor. You must make it absolutely clear that any+such warranty, support, indemnity, or liability obligation is offered by+You alone, and You hereby agree to indemnify every Contributor for any+liability incurred by such Contributor as a result of warranty, support,+indemnity or liability terms You offer. You may include additional+disclaimers of warranty and limitations of liability specific to any+jurisdiction.++4. Inability to Comply Due to Statute or Regulation+---------------------------------------------------++If it is impossible for You to comply with any of the terms of this+License with respect to some or all of the Covered Software due to+statute, judicial order, or regulation then You must: (a) comply with+the terms of this License to the maximum extent possible; and (b)+describe the limitations and the code they affect. Such description must+be placed in a text file included with all distributions of the Covered+Software under this License. Except to the extent prohibited by statute+or regulation, such description must be sufficiently detailed for a+recipient of ordinary skill to be able to understand it.++5. Termination+--------------++5.1. The rights granted under this License will terminate automatically+if You fail to comply with any of its terms. However, if You become+compliant, then the rights granted under this License from a particular+Contributor are reinstated (a) provisionally, unless and until such+Contributor explicitly and finally terminates Your grants, and (b) on an+ongoing basis, if such Contributor fails to notify You of the+non-compliance by some reasonable means prior to 60 days after You have+come back into compliance. Moreover, Your grants from a particular+Contributor are reinstated on an ongoing basis if such Contributor+notifies You of the non-compliance by some reasonable means, this is the+first time You have received notice of non-compliance with this License+from such Contributor, and You become compliant prior to 30 days after+Your receipt of the notice.++5.2. If You initiate litigation against any entity by asserting a patent+infringement claim (excluding declaratory judgment actions,+counter-claims, and cross-claims) alleging that a Contributor Version+directly or indirectly infringes any patent, then the rights granted to+You by any and all Contributors for the Covered Software under Section+2.1 of this License shall terminate.++5.3. In the event of termination under Sections 5.1 or 5.2 above, all+end user license agreements (excluding distributors and resellers) which+have been validly granted by You or Your distributors under this License+prior to termination shall survive termination.++************************************************************************+* *+* 6. Disclaimer of Warranty *+* ------------------------- *+* *+* Covered Software is provided under this License on an "as is" *+* basis, without warranty of any kind, either expressed, implied, or *+* statutory, including, without limitation, warranties that the *+* Covered Software is free of defects, merchantable, fit for a *+* particular purpose or non-infringing. The entire risk as to the *+* quality and performance of the Covered Software is with You. *+* Should any Covered Software prove defective in any respect, You *+* (not any Contributor) assume the cost of any necessary servicing, *+* repair, or correction. This disclaimer of warranty constitutes an *+* essential part of this License. No use of any Covered Software is *+* authorized under this License except under this disclaimer. *+* *+************************************************************************++************************************************************************+* *+* 7. Limitation of Liability *+* -------------------------- *+* *+* Under no circumstances and under no legal theory, whether tort *+* (including negligence), contract, or otherwise, shall any *+* Contributor, or anyone who distributes Covered Software as *+* permitted above, be liable to You for any direct, indirect, *+* special, incidental, or consequential damages of any character *+* including, without limitation, damages for lost profits, loss of *+* goodwill, work stoppage, computer failure or malfunction, or any *+* and all other commercial damages or losses, even if such party *+* shall have been informed of the possibility of such damages. This *+* limitation of liability shall not apply to liability for death or *+* personal injury resulting from such party's negligence to the *+* extent applicable law prohibits such limitation. Some *+* jurisdictions do not allow the exclusion or limitation of *+* incidental or consequential damages, so this exclusion and *+* limitation may not apply to You. *+* *+************************************************************************++8. Litigation+-------------++Any litigation relating to this License may be brought only in the+courts of a jurisdiction where the defendant maintains its principal+place of business and such litigation shall be governed by laws of that+jurisdiction, without reference to its conflict-of-law provisions.+Nothing in this Section shall prevent a party's ability to bring+cross-claims or counter-claims.++9. Miscellaneous+----------------++This License represents the complete agreement concerning the subject+matter hereof. If any provision of this License is held to be+unenforceable, such provision shall be reformed only to the extent+necessary to make it enforceable. Any law or regulation which provides+that the language of a contract shall be construed against the drafter+shall not be used to construe this License against a Contributor.++10. Versions of the License+---------------------------++10.1. New Versions++Mozilla Foundation is the license steward. Except as provided in Section+10.3, no one other than the license steward has the right to modify or+publish new versions of this License. Each version will be given a+distinguishing version number.++10.2. Effect of New Versions++You may distribute the Covered Software under the terms of the version+of the License under which You originally received the Covered Software,+or under the terms of any subsequent version published by the license+steward.++10.3. Modified Versions++If you create software not governed by this License, and you want to+create a new license for such software, you may create and use a+modified version of this License if you rename the license and remove+any references to the name of the license steward (except to note that+such modified license differs from this License).++10.4. Distributing Source Code Form that is Incompatible With Secondary+Licenses++If You choose to distribute Source Code Form that is Incompatible With+Secondary Licenses under the terms of this version of the License, the+notice described in Exhibit B of this License must be attached.++Exhibit A - Source Code Form License Notice+-------------------------------------------++ This Source Code Form is subject to the terms of the Mozilla Public+ License, v. 2.0. If a copy of the MPL was not distributed with this+ file, You can obtain one at http://mozilla.org/MPL/2.0/.++If it is not possible or desirable to put the notice in a particular+file, then You may include the notice in a location (such as a LICENSE+file in a relevant directory) where a recipient would be likely to look+for such a notice.++You may add additional accurate notices of copyright ownership.++Exhibit B - "Incompatible With Secondary Licenses" Notice+---------------------------------------------------------++ This Source Code Form is "Incompatible With Secondary Licenses", as+ defined by the Mozilla Public License, v. 2.0.
+ README.md view
@@ -0,0 +1,26 @@+# smuggler++[](https://hackage.haskell.org/package/smuggler)+[](https://travis-ci.org/kowainik/smuggler)+[](https://github.com/kowainik/smuggler/blob/master/LICENSE)++Haskell Compiler Plugin which removes unused imports automatically.++## Build instructions++Requirements:++* `ghc >= ghc-8.6.1-alpha2`++### Build project++```shell+$ cabal new-update+$ cabal new-build --allow-newer+```++### Run tests++```shell+$ cabal new-test --allow-newer+```
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ app/Main.hs view
@@ -0,0 +1,12 @@+module Main where++import Data.Bool (Bool (False, True), bool)+import Data.List (sort)+import Data.Maybe (fromMaybe, maybe)++main :: IO ()+main = do+ let foo = fromMaybe bool Nothing+ print $ (foo undefined undefined undefined :: Int)+ print True+-- main = parseFile
+ smuggler.cabal view
@@ -0,0 +1,104 @@+name: smuggler+version: 0.0.0+synopsis: Smuggling+description: GHC compiler plugin which helps to manage imports+homepage: https://github.com/kowainik/smuggler+bug-reports: https://github.com/kowainik/smuggler/issues+license: MPL-2.0+license-file: LICENSE+author: Kowainik+maintainer: xrom.xkov@gmail.com+copyright: 2018 Kowainik+category: Development, Refactoring+build-type: Simple+extra-doc-files: README.md+ , CHANGELOG.md+cabal-version: 2.0+tested-with: GHC == 8.6.1++source-repository head+ type: git+ location: git@github.com:kowainik/smuggler.git++library+ hs-source-dirs: src+ exposed-modules: Smuggler.Anns+ Smuggler.Loc+ Smuggler.Parser+ Smuggler.Plugin+-- Smuggler.Debug+-- Smuggler.Import+-- Smuggler.Name++ build-depends: base >= 4.9 && < 5+ , bytestring >= 0.10+ , containers >= 0.5+ , filepath >= 1.4+ , ghc >= 8.6.0+ , ghc-exactprint >= 0.5.7.0+ , hash-store >= 0.1.0+ , unordered-containers >= 0.2.7++ -- Debug dependencies; in separate section to easy comment before release+-- , fmt+-- , pretty-simple+-- , text++ ghc-options: -Wall+ default-extensions: DeriveGeneric+ GeneralizedNewtypeDeriving+ InstanceSigs+ LambdaCase+ OverloadedStrings+ RecordWildCards+ ScopedTypeVariables+ StandaloneDeriving++ default-language: Haskell2010++executable smuggler+ hs-source-dirs: app+ main-is: Main.hs+ ghc-options: -Wall -threaded -rtsopts -with-rtsopts=-N+ -fplugin=Smuggler.Plugin+ build-depends: base+ , smuggler++ default-extensions: DeriveGeneric+ GeneralizedNewtypeDeriving+ InstanceSigs+ LambdaCase+ OverloadedStrings+ RecordWildCards++ default-language: Haskell2010++test-suite smuggler-test+ type: exitcode-stdio-1.0+ hs-source-dirs: test++ main-is: Test.hs+ other-modules: Test.BoolBoolUsed+ Test.BoolBoolUnused+ Test.BoolPartlyUsedFirst+ Test.BoolPartlyUsedLast+ Test.Dummy+ Test.ImportEmpty+ Test.MultilineUnused+ Test.TypeConstructorUsed+ Test.TypeConstructorUnused+ Test.TypeUnused+ Test.TypeUsed++ build-depends: base+ , directory+ , filepath+ , smuggler++ ghc-options: -Wall -threaded -rtsopts -with-rtsopts=-N+ -fno-warn-unused-imports+ -fno-warn-missing-signatures+ -fhide-source-paths+ -fplugin=Smuggler.Plugin+ -fplugin-opt=Smuggler.Plugin:test+ default-language: Haskell2010
+ src/Smuggler/Anns.hs view
@@ -0,0 +1,16 @@+module Smuggler.Anns+ ( removeAnnAtLoc+ ) where++import Language.Haskell.GHC.ExactPrint (AnnKey (..), Anns)+import SrcLoc (SrcSpan (RealSrcSpan), srcSpanStartCol, srcSpanStartLine)++import qualified Data.Map.Strict as Map++removeAnnAtLoc :: Int -> Int -> Anns -> Anns+removeAnnAtLoc line col = Map.filterWithKey (\k _ -> matchKey k)+ where+ matchKey :: AnnKey -> Bool+ matchKey (AnnKey (RealSrcSpan rss) _) =+ not (srcSpanStartLine rss == line && srcSpanStartCol rss == col)+ matchKey _ = True
+ src/Smuggler/Loc.hs view
@@ -0,0 +1,21 @@+module Smuggler.Loc+ ( showLoc+ , showL+ , unL+ ) where++import SrcLoc (GenLocated (L), Located, SrcSpan (RealSrcSpan), srcSpanStartCol, srcSpanStartLine,+ unLoc)++-- | Returns location in the way of @line:col@.+showLoc :: SrcSpan -> String+showLoc (RealSrcSpan r) = show (srcSpanStartLine r) ++ ":" ++ show (srcSpanStartCol r)+showLoc loc = show loc++-- | Shows 'Located' in brackets.+showL :: String -> (a -> String) -> Located a -> String+showL name showA (L l nm) = "(" ++ showLoc l ++ name ++ showA nm ++ ")"++-- | Shorter synonim for 'unLoc'.+unL :: GenLocated l e -> e+unL = unLoc
+ src/Smuggler/Parser.hs view
@@ -0,0 +1,21 @@+module Smuggler.Parser+ ( runParser+ ) where++import Language.Haskell.GHC.ExactPrint (Anns, parseModule)++import HsExtension (GhcPs)+import HsSyn (HsModule (..))+import SrcLoc (Located)++runParser :: FilePath -> IO (Either () (Anns, Located (HsModule GhcPs)))+runParser fileName = do+ res <- parseModule fileName+ pure $ case res of+ Left (_srcSpan, _str) -> Left ()+ Right x -> Right x++-- newtype ParseException = ParseException String+-- deriving (Show)+--+-- instance Exception ParseException
+ src/Smuggler/Plugin.hs view
@@ -0,0 +1,125 @@+{-# LANGUAGE TupleSections #-}++module Smuggler.Plugin+ ( plugin+ ) where++import Control.Monad (guard, void)+import Control.Monad.IO.Class (MonadIO (..))+import Data.ByteString (ByteString)+import Data.List (foldl')+import HashStore (hashStore)+import Language.Haskell.GHC.ExactPrint (exactPrint)+import System.FilePath ((-<.>))++import HscTypes (ModSummary (..))+import HsExtension (GhcRn)+import HsImpExp (IE (..), IEWrappedName (..), ImportDecl (..), LIE, LIEWrappedName)+import IOEnv (readMutVar)+import Name (Name)+import Plugins (CommandLineOption, Plugin (..), defaultPlugin)+import PrelNames (pRELUDE_NAME)+import RdrName (GlobalRdrElt)+import RnNames (ImportDeclUsage, findImportUsage)+import SrcLoc (GenLocated (..), SrcSpan (..), srcSpanEndLine, srcSpanStartCol, srcSpanStartLine,+ unLoc)+import TcRnTypes (TcGblEnv (..), TcM)++import Smuggler.Anns (removeAnnAtLoc)+import Smuggler.Parser (runParser)++import qualified Data.ByteString as BS++plugin :: Plugin+plugin = defaultPlugin { typeCheckResultAction = smugglerPlugin }++cacheDir :: FilePath+cacheDir = ".smuggler"++munglePath :: FilePath -> FilePath+munglePath = \case+ [] -> []+ '/' : xs -> '.' : munglePath xs+ c : xs -> c : munglePath xs++smugglerPlugin :: [CommandLineOption] -> ModSummary -> TcGblEnv -> TcM TcGblEnv+smugglerPlugin clis modSummary tcEnv = do+ let modulePath = ms_hspp_file modSummary++ uses <- readMutVar (tcg_used_gres tcEnv)+ fileContent <- liftIO $ BS.readFile modulePath+ let modifiedName = munglePath modulePath++ liftIO $ void $ hashStore cacheDir+ (smuggling uses modulePath)+ (modifiedName, fileContent)++ pure tcEnv+ where+ smuggling :: [GlobalRdrElt] -> FilePath -> ByteString -> IO ByteString+ smuggling uses modulePath _ = do+ -- 1. Parse given file+ runParser modulePath >>= \case -- TODO: don't read file, use given ByteString+ Left () -> pure () -- do nothing if file is invalid Haskell+ Right (anns, ast) -> do+ -- 2. find positions of unused imports+ let user_imports = filter (not . ideclImplicit . unLoc) (tcg_rn_imports tcEnv)+ let usage = findImportUsage user_imports uses+ let unusedPositions = concatMap unusedLocs usage++ -- 3. Remove positions of unused imports from annotations.+ let purifiedAnnotations = foldl' (\ann (x, y) -> removeAnnAtLoc x y ann) anns unusedPositions+ let newContent = exactPrint ast purifiedAnnotations+ case clis of+ [] -> putStrLn newContent+ (ext:_) -> writeFile (modulePath -<.> ext) newContent+ -- 4. Return empty ByteString+ pure ""++unusedLocs ::ImportDeclUsage -> [(Int, Int)]+unusedLocs (L (UnhelpfulSpan _) _, _, _) = []+unusedLocs (L (RealSrcSpan loc) decl, used, unused)+ -- Do not remove `import M ()`+ | Just (False, L _ []) <- ideclHiding decl+ = []++ -- Note [Do not warn about Prelude hiding]+ -- TODO: add ability to support custom prelude+ | Just (True, L _ hides) <- ideclHiding decl+ , not (null hides)+ , pRELUDE_NAME == unLoc (ideclName decl)+ = []++ -- Nothing used; drop entire decl+ -- TODO: optimize+ | null used = [ (lineNum, colNum)+ | lineNum <- [srcSpanStartLine loc .. srcSpanEndLine loc]+ , colNum <- [1..100]+ ]++ -- Everything imported is used; drop nothing+ | null unused = []++ -- only part of non-hiding import is used+ | Just (False, L _ lies) <- ideclHiding decl+ = unusedLies lies++ -- TODO: unused hidings+ | otherwise = []+ where+ unusedLies :: [LIE GhcRn] -> [(Int, Int)]+ unusedLies = concatMap lieToLoc++ lieToLoc :: LIE GhcRn -> [(Int, Int)]+ lieToLoc (L _ lie) = case lie of+ IEVar _ name -> lieNameToLoc name+ IEThingAbs _ name -> lieNameToLoc name+ IEThingAll _ name -> lieNameToLoc name+ IEThingWith _ name _ names _ -> concatMap lieNameToLoc (name : names)+ _ -> []++ lieNameToLoc :: LIEWrappedName Name -> [(Int, Int)]+ lieNameToLoc lieName = do+ L _ (IEName (L (RealSrcSpan lieLoc) name)) <- [lieName]+ guard $ name `elem` unused+ pure (srcSpanStartLine lieLoc, srcSpanStartCol lieLoc)
+ test/Test.hs view
@@ -0,0 +1,33 @@+module Main where++import Data.Foldable (for_)+import System.Directory (listDirectory, removeDirectoryRecursive, removeFile)+import System.Exit (exitFailure)+import System.FilePath (isExtensionOf, splitExtension, (<.>), (</>))++main :: IO ()+main = do+ files <- map ("test/Test" </>) <$> listDirectory "test/Test/"+ let testFiles = filter ("test" `isExtensionOf`) files+ -- compare outputs of .test and .golden files+ result <- traverse compareWithGolden testFiles >>= pure . foldr (&&) True+++ -- clean up all .test files+ putStrLn "Cleaning tests"+ for_ testFiles removeFile++ -- clean up .smuggler/ cache directory+ putStrLn "Cleaning smuggler cache"+ removeDirectoryRecursive ".smuggler"++ if result+ then putStrLn "Success"+ else putStrLn "Fail" >> exitFailure+ where+ compareWithGolden :: FilePath -> IO Bool+ compareWithGolden f = do+ let (name, _) = splitExtension f+ goldenContent <- readFile $ name <.> "golden"+ testContent <- readFile f+ pure $ goldenContent == testContent
+ test/Test/BoolBoolUnused.hs view
@@ -0,0 +1,3 @@+module Test.BoolBoolUnused where++import Data.Bool (bool)
+ test/Test/BoolBoolUsed.hs view
@@ -0,0 +1,5 @@+module Test.BoolBoolUsed where++import Data.Bool (bool)++func = bool
+ test/Test/BoolPartlyUsedFirst.hs view
@@ -0,0 +1,5 @@+module Test.BoolPartlyUsedFirst where++import Data.Bool (bool, not)++foo = bool
+ test/Test/BoolPartlyUsedLast.hs view
@@ -0,0 +1,5 @@+module Test.BoolPartlyUsedLast where++import Data.Bool (bool, not)++foo = not
+ test/Test/Dummy.hs view
@@ -0,0 +1,4 @@+module Test.Dummy where++main :: IO ()+main = pure ()
+ test/Test/ImportEmpty.hs view
@@ -0,0 +1,3 @@+module Test.ImportEmpty where++import Data.Bool ()
+ test/Test/MultilineUnused.hs view
@@ -0,0 +1,10 @@+module Test.MultilineUnused where++import Data.Bool (bool)+import Data.List (break, cycle, drop, dropWhile, filter, genericDrop, genericLength,+ genericReplicate, genericSplitAt, genericTake, group, inits, intercalate,+ intersperse, isPrefixOf, iterate, map, permutations, repeat, replicate, reverse,+ scanl, scanr, sort, sortBy, sortOn, splitAt, subsequences, tails, take, takeWhile,+ transpose, unfoldr, unzip, unzip3, zip, zip3, zipWith, (++))++foo = bool
+ test/Test/TypeConstructorUnused.hs view
@@ -0,0 +1,5 @@+module Test.TypeConstructorUnused where++import Data.Bool (Bool (False, True))++true = True
+ test/Test/TypeConstructorUsed.hs view
@@ -0,0 +1,5 @@+module Test.TypeConstructorUsed where++import Data.Bool (Bool (True))++true = True
+ test/Test/TypeUnused.hs view
@@ -0,0 +1,5 @@+module Test.TypeUnused where++import Data.Bool (Bool, not)++foo = not
+ test/Test/TypeUsed.hs view
@@ -0,0 +1,6 @@+module Test.TypeUsed where++import Data.Bool (Bool, not)++foo :: Bool+foo = undefined