lean4-htt/tests/lean/run/macro2.lean
2020-10-26 09:16:51 -07:00

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Text

notation:50 a "**" b:50 => b * a * b
notation "~" a => a+a
namespace Foo
notation "~~" a => a+a
end Foo
syntax:60 term "+++" term:59 : term
syntax "<|" term "|>" : term
macro_rules
| `($a +++ $b) => `($a + $b + $b)
macro_rules
| `(<| $x |>) => `($x +++ 1 ** 2)
#check <| 2 |>
#check <| ~2 |>
#check <| ~~2 |>
#check <| <| 3 |> |>