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-rw-r--r--src/Utils.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Utils.hs b/src/Utils.hs
index 2561969..379740d 100644
--- a/src/Utils.hs
+++ b/src/Utils.hs
@@ -123,7 +123,7 @@ instance (Eq Token) where
instance (Show Token) where
show token = show $ tokenContent token
-data Purity = Pure | Impure deriving Eq
+data Purity = Pure | Impure deriving (Eq, Show)
type LFunction = AST -> LContext AST
type LRecord = M.Map String AST