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33 lines
816 B
Plaintext
33 lines
816 B
Plaintext
import prelude
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data Cat : Type where
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Stm : Cat
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Exp : Cat
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Var : Cat
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Typ : Cat
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ListStm : Cat
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data Tree : Cat -> Type where
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SDecl : Tree Typ -> Tree Var -> Tree Stm
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SAss : Tree Var -> Tree Exp -> Tree Stm
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SBlock : Tree ListStm -> Tree Stm
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EAdd : Tree Exp -> Tree Exp -> Tree Exp
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EStm : Tree Stm -> Tree Exp
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EVar : Tree Var -> Tree Exp
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EInt : Integer -> Tree Exp
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V : String -> Tree Var
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TInt : Tree Typ
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TFloat : Tree Typ
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NilStm : Tree ListStm
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ConsStm : Tree Stm -> Tree ListStm -> Tree ListStm
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derive Compos Tree
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rename : (String -> String) -> (C : Type) -> Tree C -> Tree C
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rename f C t = case t of
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V x -> V (f x)
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_ -> composOp ? ? compos_Tree C (rename f) t
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main = rename (const ? ? "apa") Stm (SAss (V "y") (EAdd (EVar (V "x")) (EInt 2))) |