Does a function that takes as input a function and return its porgram text exist?

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  • hint

    Runtime Haskell interpreter

  • I am thinking of giving hint the ability to evaluate TemplateHaskell expressions. It would indeed be quite difficult to write an interpreter for all of Haskell, so my plan is to use the Exp's Show instance to produce a program which constructs and then splices that Exp, e.g. $(pure (InfixE (Just (LitE (IntegerL 1))) (VarE GHC.Num.+) (Just (LitE (IntegerL 1))))) is a Haskell expression which is equivalent to 1 + 1, so I should be able to ask hint to evaluate that to get 2 without having to write my own Haskell interpreter.

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