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https://issues.apache.org/jira/browse/THRIFT-1927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rodrigo Setti closed THRIFT-1927.
---------------------------------
Resolution: Invalid
> Add Haskell required Hashable instances
> ---------------------------------------
>
> Key: THRIFT-1927
> URL: https://issues.apache.org/jira/browse/THRIFT-1927
> Project: Thrift
> Issue Type: Bug
> Components: Haskell - Library
> Reporter: Rodrigo Setti
>
> Some higher level structures are not working because they're not Hashable.
> The following code fix that - it should probably live in Thrift main module:
> {noformat}
> import Data.Hashable (Hashable)
> import qualified Data.HashMap.Strict as Map
> import qualified Data.HashSet as Set
> import qualified Data.Vector as Vector
> instance Hashable a => Hashable (Vector.Vector a) where
>
> hashWithSalt s v = hashWithSalt s $ Vector.toList v
>
>
>
> instance (Hashable a, Hashable b) => Hashable (Map.HashMap a b) where
>
> hashWithSalt s v = hashWithSalt s $ Map.toList v
>
>
> instance Hashable a => Hashable (Set.HashSet a) where
>
> hashWithSalt s v = hashWithSalt s $ Set.toList v
> {noformat}
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