Add the proper HLint rules and remove redundant keywords from compiler

1 files changed, 17 insertions, 0 deletions

diff --git a/compiler/.hlint.yaml b/compiler/.hlint.yaml
index 6ebe02e94c..16e593d87c 100644
--- a/compiler/.hlint.yaml
+++ b/compiler/.hlint.yaml
@@ -5,3 +5,20 @@
 - ignore: {}
 - warn: {name: Unused LANGUAGE pragma}
 - warn: {name: Use fewer LANGUAGE pragmas}
+- warn: {name: Redundant return}
+- warn: {name: Redundant True guards}
+- warn: {name: Redundant do}
+- warn: {name: Redundant variable capture}
+- warn: {name: Redundant void}
+- warn: {name: Redundant as}
+- warn: {name: Use fewer imports}
+- warn: {name: Redundant as-pattern}
+- warn: {name: Redundant where}
+
+## Exceptions
+# Sometimes, the hlint parser flags some functions and modules as incorrectly
+# using a language extension. Some other times, we need to make exceptions to
+# lints that we otherwise want applied elsewhere. Such exceptions are listed
+# below.
+
+- ignore: {name: Redundant do, within: [GHC.SysTools.Terminal, GHC.Utils.Binary]}