renderStmt (LetS var val cont) = "let" <+> renderDestr var <+> "=" <+> renderExpr val <> line <> renderStmt cont
renderStmt (LetS var val cont) = "let" <+> renderDestr var <+> "=" <+> renderExpr val <> line <> renderStmt cont
renderStmt (LetS var val cont) = "let" <+> renderDestr var <+> "=" <+> renderExpr val <> line <> renderStmt cont