veer66, 3 months ago

Clippy didn’t tell anything about the macro.

<span style="color:#323232;">warning: dereferencing a tuple pattern where every element takes a reference
</span><span style="color:#323232;">  --> src/lib.rs:13:9
</span><span style="color:#323232;">   |
</span><span style="color:#323232;">13 |         &Some(ref cons_rc) => {
</span><span style="color:#323232;">   |         ^^^^^^^^^^^^^^^^^^
</span><span style="color:#323232;">   |
</span><span style="color:#323232;">   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrowed_reference
</span><span style="color:#323232;">   = note: `#[warn(clippy::needless_borrowed_reference)]` on by default
</span><span style="color:#323232;">help: try removing the `&` and `ref` parts
</span><span style="color:#323232;">   |
</span><span style="color:#323232;">13 -         &Some(ref cons_rc) => {
</span><span style="color:#323232;">13 +         Some(cons_rc) => {
</span><span style="color:#323232;">   |
</span>

To put #[allow(this_linting_rule)] like this:

<span style="color:#323232;">    [ $x:expr, </span><span style="font-weight:bold;color:#a71d5d;">$</span><span style="color:#323232;">( $y:expr ),</span><span style="font-weight:bold;color:#a71d5d;">* </span><span style="color:#323232;">] </span><span style="font-weight:bold;color:#a71d5d;">=> </span><span style="color:#323232;">{
</span><span style="color:#323232;">	#[allow(unused_assignments)]
</span><span style="color:#323232;">	{
</span>

I got error[E0658]: attributes on expressions are experimental.

To put it like this:

<span style="color:#323232;">#[macro_export]
</span><span style="color:#323232;">#[allow(unused_assignments)]
</span><span style="color:#62a35c;">macro_rules! </span><span style="color:#323232;">list {
</span><span style="color:#323232;">    () </span><span style="font-weight:bold;color:#a71d5d;">=> </span><span style="color:#323232;">{
</span><span style="color:#323232;">	</span><span style="color:#0086b3;">None
</span>

It doesn’t work.