Safe Haskell	Safe
Language	Haskell2010

Rock.HashTag

Synopsis

class HashTag k where
- hashTagged :: k a -> a -> Int

Documentation

class HashTag k where Source #

Hash the result of a k query.

A typical implementation looks like:

data Query a where
  ReadFile :: FilePath -> Query Text

instance HashTag Query where
  hashTagged query =
    case query of
      ReadFile {} -> hash

Methods

hashTagged :: k a -> a -> Int Source #

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