Merge pull request #10634 from cabalism/hlint/unused-lang-pragma

Remove unused LANGUAGE pragmas

Author: mergify[bot]

.hlint.yaml

@@ -29,7 +29,6 @@
 - ignore: {name: "Redundant return"} # 9 hints
 - ignore: {name: "Replace case with fromMaybe"} # 6 hints
 - ignore: {name: "Replace case with maybe"} # 10 hints
-- ignore: {name: "Unused LANGUAGE pragma"} # 168 hints
 - ignore: {name: "Use $>"} # 5 hints
 - ignore: {name: "Use ++"} # 4 hints
 - ignore: {name: "Use :"} # 30 hints
@@ -96,9 +95,21 @@
 
 - arguments:
     - --ignore-glob=Cabal-syntax/src/Distribution/Fields/Lexer.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/BuildWays/q/app/Main.hs
     - --ignore-glob=cabal-testsuite/PackageTests/CmmSources/src/Demo.hs
     - --ignore-glob=cabal-testsuite/PackageTests/CmmSourcesDyn/src/Demo.hs
     - --ignore-glob=cabal-testsuite/PackageTests/CmmSourcesExe/src/Demo.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/NewBuild/CmdRun/Script/script.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/NewBuild/CmdRun/ScriptLiterate/script.lhs
+    - --ignore-glob=cabal-testsuite/PackageTests/Regression/T5309/lib/Bio/Character/Exportable/Class.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/SetupHooks/SetupHooksC2HsRules/SetupHooks.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/SetupHooks/SetupHooksDuplicateRuleId/SetupHooks.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/SetupHooks/SetupHooksInvalidRuleOutputIndex/SetupHooks.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/SetupHooks/SetupHooksRuleOrdering/SetupHooks.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/SetupHooks/SetupHooksUnusedRules/SetupHooks.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/TemplateHaskell/dynamic/TH.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/TemplateHaskell/profiling/TH.hs
+    - --ignore-glob=cabal-testsuite/PackageTests/TemplateHaskell/vanilla/TH.hs
     - --ignore-glob=templates/Paths_pkg.template.hs
     - --ignore-glob=templates/SPDX.LicenseExceptionId.template.hs
     - --ignore-glob=templates/SPDX.LicenseId.template.hs

Cabal-QuickCheck/src/Test/QuickCheck/Instances/Cabal.hs

@@ -1,5 +1,4 @@
 {-# LANGUAGE CPP           #-}
-{-# LANGUAGE TypeOperators #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 module Test.QuickCheck.Instances.Cabal () where

Cabal-described/src/Distribution/Utils/GrammarRegex.hs

@@ -1,5 +1,3 @@
-{-# LANGUAGE DeriveFoldable      #-}
-{-# LANGUAGE DeriveFunctor       #-}
 {-# LANGUAGE DeriveTraversable   #-}
 {-# LANGUAGE OverloadedStrings   #-}
 {-# LANGUAGE ScopedTypeVariables #-}

Cabal-hooks/src/Distribution/Simple/SetupHooks.hs

@@ -2,12 +2,8 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE DerivingStrategies #-}
 {-# LANGUAGE DuplicateRecordFields #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE RankNTypes #-}
-{-# LANGUAGE RecursiveDo #-}
 {-# LANGUAGE StaticPointers #-}
-{-# LANGUAGE TupleSections #-}
-{-# LANGUAGE OverloadedStrings #-}
 
 {-|
 Module: Distribution.Simple.SetupHooks

Cabal-syntax/src/Distribution/Backpack.hs

@@ -1,8 +1,6 @@
 {-# LANGUAGE DeriveDataTypeable #-}
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE FlexibleInstances #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
-{-# LANGUAGE PatternGuards #-}
 {-# LANGUAGE RankNTypes #-}
 
 -- | This module defines the core data types for Backpack.  For more

Cabal-syntax/src/Distribution/Compat/Binary.hs

@@ -1,5 +1,4 @@
 {-# LANGUAGE CPP #-}
-{-# LANGUAGE PatternSynonyms #-}
 
 module Distribution.Compat.Binary
   ( decodeOrFailIO

Cabal-syntax/src/Distribution/Compiler.hs

@@ -1,6 +1,4 @@
 {-# LANGUAGE DeriveDataTypeable #-}
-{-# LANGUAGE DeriveFoldable #-}
-{-# LANGUAGE DeriveFunctor #-}
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE DeriveTraversable #-}
 

Cabal-syntax/src/Distribution/FieldGrammar/Newtypes.hs

@@ -1,8 +1,8 @@
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE FlexibleInstances #-}
-{-# LANGUAGE FunctionalDependencies #-}
 {-# LANGUAGE InstanceSigs #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}

Cabal-syntax/src/Distribution/Fields/Field.hs

@@ -1,6 +1,4 @@
 {-# LANGUAGE CPP #-}
-{-# LANGUAGE DeriveFoldable #-}
-{-# LANGUAGE DeriveFunctor #-}
 {-# LANGUAGE DeriveTraversable #-}
 {-# LANGUAGE StandaloneDeriving #-}
 

Cabal-syntax/src/Distribution/Fields/Parser.hs

@@ -1,7 +1,6 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE PatternGuards #-}
 
 -----------------------------------------------------------------------------