Merge pull request #1060 from jvoigtlaender/evaluate-append-with-empt…

…y-list [] is neutral element for ++
ndmitchell · Jun 24, 2020 · ad16073 · ad16073
2 parents c22d776 + d2a0795
commit ad16073
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/data/hlint.yaml b/data/hlint.yaml
@@ -737,6 +737,8 @@
     - warn: {lhs: const x y, rhs: x, name: Evaluate}
     - warn: {lhs: any (const False), rhs: const False, note: IncreasesLaziness, name: Evaluate}
     - warn: {lhs: all (const True), rhs: const True, note: IncreasesLaziness, name: Evaluate}
+    - warn: {lhs: "[] ++ x", rhs: x, name: Evaluate}
+    - warn: {lhs: "x ++ []", rhs: x, name: Evaluate}
 
     # FOLDABLE + TUPLES