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| -rw-r--r-- | src/Blessings.hs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/Blessings.hs b/src/Blessings.hs index 3c00f38..559db3e 100644 --- a/src/Blessings.hs +++ b/src/Blessings.hs @@ -53,6 +53,10 @@ instance Semigroup (Blessings a) where instance Monoid (Blessings a) where mempty = Empty + mconcat = \case + x:[] -> x + x:xs -> Append x $ mconcat xs + [] -> Empty instance IsString a => IsString (Blessings a) where |