Macro nonzero_integer

macro_rules! nonzero_integer {
    (
        #[$stability:meta]
        Self = $Ty:ident,
        Primitive = $signedness:ident $Int:ident,
        SignedPrimitive = $Sint:ty,
        UnsignedPrimitive = $Uint:ty,

        // Used in doc comments.
        rot = $rot:literal,
        rot_op = $rot_op:literal,
        rot_result = $rot_result:literal,
        swap_op = $swap_op:literal,
        swapped = $swapped:literal,
        reversed = $reversed:literal,
        leading_zeros_test = $leading_zeros_test:expr,
    ) => { ... };
    (
        Self = $Ty:ident,
        Primitive = unsigned $Int:ident,
        SignedPrimitive = $Sint:ident,
        rot = $rot:literal,
        rot_op = $rot_op:literal,
        rot_result = $rot_result:literal,
        swap_op = $swap_op:literal,
        swapped = $swapped:literal,
        reversed = $reversed:literal,
        $(,)?
    ) => { ... };
    (
        Self = $Ty:ident,
        Primitive = signed $Int:ident,
        UnsignedPrimitive = $Uint:ident,
        rot = $rot:literal,
        rot_op = $rot_op:literal,
        rot_result = $rot_result:literal,
        swap_op = $swap_op:literal,
        swapped = $swapped:literal,
        reversed = $reversed:literal,
    ) => { ... };
}